Add board support for the SAMA5D4-EK

Documentation/README.html

@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX README Files</i></font></big></h1>
-      <p>Last Updated:  June 3, 2014</p>
+      <p>Last Updated:  June 6, 2014</p>
     </td>
   </tr>
 </table>
@@ -174,6 +174,8 @@
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sama5d3x-ek/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- sama5d3-xplained/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sama5d3-xplained/README.txt"><b><i>README.txt</i></b></a>
+ |   |   |- sama5d4-ek/
+ |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sama5d4-ek/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- samd20-xplained/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/samd20-xplained/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- sam3u-ek/

README.txt

@@ -1040,6 +1040,8 @@ nuttx
  |   |   `- README.txt
  |   |- sama5d3-xplained/
  |   |   `- README.txt
+ |   |- sama5d4-ek/
+ |   |   `- README.txt
  |   |- samd20-xplained/
  |   |   `- README.txt
  |   |- sam3u-ek/

configs/Kconfig

@@ -575,6 +575,15 @@ config ARCH_BOARD_SAMA5D3_XPLAINED
 	---help---
 		The port of NuttX to the Atmel SAMA5D3 Xplained development board.
 
+config ARCH_BOARD_SAMA5D4_EK
+	bool "Atmel SAMA5D4-EK development board"
+	depends on ARCH_CHIP_ATSAMA5D44
+	select ARCH_HAVE_LEDS
+	select ARCH_HAVE_BUTTONS
+	select ARCH_HAVE_IRQBUTTONS
+	---help---
+		The port of NuttX to the Atmel SAMA5D4-EK development board
+
 config ARCH_BOARD_SAMD20_XPLAINED
 	bool "Atmel SAMD20-Xplained Pro development board"
 	depends on ARCH_CHIP_SAMD20J18
@@ -1000,6 +1009,7 @@ config ARCH_BOARD
 	default "rgmp"                if ARCH_BOARD_RGMP
 	default "sama5d3x-ek"         if ARCH_BOARD_SAMA5D3X_EK
 	default "sama5d3-xplained"    if ARCH_BOARD_SAMA5D3_XPLAINED
+	default "sama5d4-ek"          if ARCH_BOARD_SAMA5D4_EK
 	default "samd20-xplained"     if ARCH_BOARD_SAMD20_XPLAINED
 	default "sam3u-ek"            if ARCH_BOARD_SAM3UEK
 	default "sam4e-ek"            if ARCH_BOARD_SAM4EEK
@@ -1255,11 +1265,14 @@ if ARCH_BOARD_RGMP
 source "configs/rgmp/Kconfig"
 endif
 if ARCH_BOARD_SAMA5D3X_EK
-source "configs/sama5d3x-ek/Kconfig"
+source "configs/sama5d3-xplained/Kconfig"
 endif
 if ARCH_BOARD_SAMA5D3_XPLAINED
 source "configs/sama5d3-xplained/Kconfig"
 endif
+if ARCH_BOARD_SAMA5D4_EK
+source "configs/sama5d4-ek/Kconfig"
+endif
 if ARCH_BOARD_SAMD20_XPLAINED
 source "configs/samd20-xplained/Kconfig"
 endif

configs/README.txt

@@ -480,6 +480,10 @@ configs/sama5d3-xplained
   This board features the Atmel SAMA5D36.  See
   http://www.atmel.com/devices/sama5d36.aspx.
 
+configs/sama5d4-ek
+  This is the  port of NuttX to the Atmel SAMA5D4-EK development board.
+  This board features the Atmel SAMA5D44.  See http://www.atmel.com.
+
 configs/samd20-xplained
   The port of NuttX to the Atmel SAMD20-Xplained Pro development board.  This
   board features the ATSAMD20J18A MCU (Cortex-M0+ with 256KB of FLASH and

configs/sama5d4-ek/Kconfig

@@ -0,0 +1,160 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+if ARCH_BOARD_SAMA5D4_EK
+
+choice
+	prompt "CPU Frequency"
+	default SAMA5D4EK_396MHZ
+
+config SAMA5D4EK_384MHZ
+	bool "384 MHz"
+
+config SAMA5D4EK_396MHZ
+	bool "396 MHz"
+
+config SAMA5D4EK_528MHZ
+	bool "528 MHz"
+
+endchoice # CPU Frequency
+
+choice
+	prompt "SAMA4D4-EK DRAM Type"
+	default SAMA5D4EK_MT47H128M16RT
+	depends on SAMA5_DDRCS
+
+config SAMA5D4EK_MT47H128M16RT
+	bool "MT47H128M16RT"
+	---help---
+		Micron 2Gbit x16 DDR2-1066 128Mb
+
+config SAMA5D4EK_MT47H64M16HR
+	bool "MT47H64M16HR"
+	---help---
+		Micron 1Gbit x16 DDR2-800 64Mb
+
+endchoice # SAMA4D4-EK DRAM Type
+
+config SAMA5D4EK_NAND_AUTOMOUNT
+	bool "NAND FLASH auto-mount"
+	default n
+	depends on NSH_ARCHINIT && SAMA5_EBICS3_NAND
+	---help---
+		Automatically initialize the NAND FLASH driver when NSH starts.
+
+choice
+	prompt "NAND FLASH configuration"
+	default SAMA5D4EK_NAND_NXFFS
+	depends on SAMA5D4EK_NAND_AUTOMOUNT
+
+config SAMA5D4EK_NAND_FTL
+	bool "Create NAND FLASH block driver"
+	depends on MTD && MTD_NAND
+	---help---
+		Create the MTD driver for the NAND and "wrap" the NAND as a standard
+		block driver that could then, for example, be mounted using FAT or
+		any other file system.  Any file system may be used, but there will
+		be no wear-leveling.
+
+		NOTE: This options is not currently recommended.  There is not now
+		NuttX file system that can handle the NAND back blocks or performs
+		wear-leveling other than NXFFS and NXFFS does not use a block driver
+		but, rather, operates directly upon the NAND MTD device.
+
+config SAMA5D4EK_NAND_NXFFS
+	bool "Create NAND FLASH NXFFS file system"
+	depends on MTD && MTD_NAND && FS_NXFFS && NXFFS_NAND
+	---help---
+		Create the MTD driver for the NAND and mount the NAND device as
+		a wear-leveling, NuttX FLASH file system (NXFFS).  The downside of
+		NXFFS is that it can be very slow.
+
+		NOTE: NXFFS is recommended because (1) it can handle the NAND back
+		blocks and (1) performs wear-leveling.
+
+endchoice # NAND FLASH configuration
+
+config SAMA5D4EK_AT25_AUTOMOUNT
+	bool "AT25 serial FLASH auto-mount"
+	default n
+	depends on NSH_ARCHINIT && SAMA5_SPI0 && MTD_AT25
+	---help---
+		Automatically initialize the AT25 SPI FLASH driver when NSH starts.
+
+choice
+	prompt "AT25 serial FLASH configuration"
+	default SAMA5D4EK_AT25_FTL
+	depends on SAMA5D4EK_AT25_AUTOMOUNT
+
+config SAMA5D4EK_AT25_FTL
+	bool "Create AT25 Serial FLASH block driver"
+	---help---
+		Create the MTD driver for the AT25 and "wrap" the AT25 as a standard
+		block driver that could then, for example, be mounted using FAT or
+		any other file system.  Any file system may be used, but there will
+		be no wear-leveling.
+
+config SAMA5D4EK_AT25_NXFFS
+	bool "Create AT25 serial FLASH NXFFS file system"
+	depends on FS_NXFFS
+	---help---
+		Create the MTD driver for the AT25 and mount the AT25 device as
+		a wear-leveling, NuttX FLASH file system (NXFFS).  The downside of
+		NXFFS is that it can be very slow.
+
+endchoice # AT25 serial FLASH configuration
+
+config SAMA5D4EK_CHANNEL
+	int "PWM channel number"
+	default 0 if SAMA5_PWM_CHAN0
+	default 1 if SAMA5_PWM_CHAN1
+	default 2 if SAMA5_PWM_CHAN2
+	default 3 if SAMA5_PWM_CHAN3
+	range 0 3
+	depends on PWM && SAMA5_PWM
+	---help---
+		Selects the PWM channel number that will be used to perform the PWM
+		test.  See apps/examples/pwm.
+
+if AUDIO_I2SCHAR && (SAMA5_SSC0 || SAMA5_SSC1)
+
+if SAMA5_SSC0 && SAMA5_SSC1
+
+config SAMA5D4EK_SSC_PORT
+	int "SSC port number"
+	default 0
+	range 0 1
+	---help---
+		Specify the I2S port to use, i.e., 0 for SSC0 or 1 for SSC1
+
+endif # SAMA5_SSC0 && SAMA5_SSC1
+
+if SAMA5_SSC0 && !SAMA5_SSC1
+
+config SAMA5D4EK_SSC_PORT
+	int
+	default 0
+
+endif # SAMA5_SSC0 && !SAMA5_SSC1
+
+if !SAMA5_SSC0 && SAMA5_SSC1
+
+config SAMA5D4EK_SSC_PORT
+	int
+	default 1
+
+endif # SAMA5_SSC0 && !SAMA5_SSC1
+
+config SAMA5D4EK_I2SCHAR_MINOR
+	int "I2S character driver minor number"
+	default 0
+	---help---
+		The minor device number to use when registering the I2S character
+		device.  The driver will be registered at /dev/is2charN where N is
+		the value provided by this setting.
+
+endif # AUDIO_I2SCHAR && (SAMA5_SSC0 || SAMA5_SSC1)
+
+endif # ARCH_BOARD_SAMA5D4_EK

configs/sama5d4-ek/include/board.h

@@ -0,0 +1,364 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/irq.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAMA5 device is running on a 12MHz internal RC.  These
+ * definitions will configure operational clocking.
+ */
+
+#if defined(CONFIG_SAMA5_BOOT_SDRAM)
+/* When booting from SDRAM, NuttX is loaded in SDRAM by an intermediate bootloader.
+ * That bootloader had to have already configured the PLL and SDRAM for proper
+ * operation.
+ *
+ * In this case, we don not reconfigure the clocking.  Rather, we need to query
+ * the register settings to determine the clock frequencies.  We can only assume that
+ * the Main clock source in the on-board 12MHz crystal.
+ */
+
+#  include <arch/board/board_sdram.h>
+
+#elif defined(CONFIG_SAMA5D4EK_384MHZ)
+/* OHCI Only.  This is an alternative slower configuration that will produce a 48MHz
+ * USB clock with the required accuracy using only PLLA.  When PPLA is used to clock
+ * OHCI, an additional requirement is the PLLACK be a multiple of 48MHz.  This setup
+ * results in a CPU clock of 384MHz.
+ *
+ * This case is only interesting for experimentation.
+ */
+
+#  include <arch/board/board_384mhz.h>
+
+#elif defined(CONFIG_SAMA5D4EK_528MHZ)
+/* This is the configuration results in a CPU clock of 528MHz.
+ *
+ * In this configuration, UPLL is the source of the UHPHS clock (if enabled).
+ */
+
+#  include <arch/board/board_528mhz.h>
+
+#else /* #elif defined(CONFIG_SAMA5D4EK_396MHZ) */
+/* This is the configuration provided in the Atmel example code.  This setup results
+ * in a CPU clock of 396MHz.
+ *
+ * In this configuration, UPLL is the source of the UHPHS clock (if enabled).
+ */
+
+#  include <arch/board/board_396mhz.h>
+
+#endif
+
+/* LED definitions ******************************************************************/
+/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
+ * by software.  A  blue LED is controlled via PIO pins.  A red LED normally
+ * provides an indication that power is supplied to the board but can also
+ * be controlled via software.
+ *
+ *   PE23.  This blue LED is pulled high and is illuminated by pulling PE23
+ *   low.
+ *
+ *   PE24.  The red LED is also pulled high but is driven by a transistor so
+ *   that it is illuminated when power is applied even if PE24 is not
+ *   configured as an output.  If PE24 is configured as an output, then the
+ *   LCD is illuminated by a high output.
+ */
+
+/* LED index values for use with sam_setled() */
+
+#define BOARD_BLUE        0
+#define BOARD_RED         1
+#define BOARD_NLEDS       2
+
+/* LED bits for use with sam_setleds() */
+
+#define BOARD_BLUE_BIT    (1 << BOARD_BLUE)
+#define BOARD_RED_BIT     (1 << BOARD_RED)
+
+/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
+ * defined.  In that case, the usage by the board port is defined in
+ * include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
+ * events as follows:
+ *
+ *      SYMBOL            Val    Meaning                     LED state
+ *                                                         Blue     Red
+ *      ----------------- ---   -----------------------  -------- --------   */
+#define LED_STARTED       0  /* NuttX has been started     OFF      OFF      */
+#define LED_HEAPALLOCATE  0  /* Heap has been allocated    OFF      OFF      */
+#define LED_IRQSENABLED   0  /* Interrupts enabled         OFF      OFF      */
+#define LED_STACKCREATED  1  /* Idle stack created         ON       OFF      */
+#define LED_INIRQ         2  /* In an interrupt              No change       */
+#define LED_SIGNAL        2  /* In a signal handler          No change       */
+#define LED_ASSERTION     2  /* An assertion failed          No change       */
+#define LED_PANIC         3  /* The system has crashed     OFF      Blinking */
+#undef  LED_IDLE             /* MCU is is sleep mode         Not used        */
+
+/* Thus if the blue LED is statically on, NuttX has successfully booted and
+ * is, apparently, running normmally.  If the red is flashing at
+ * approximately 2Hz, then a fatal error has been detected and the system
+ * has halted.
+ */
+
+/* Button definitions ***************************************************************/
+/* The following push buttons switches are available:
+ *
+ *    1. One board reset button (BP2). When pressed and released, this push
+ *       button causes a power-on reset of the whole board.
+ *
+ *    2. One wakeup pushbutton that brings the processor out of Low-power mode
+ *       (BP1)
+ *
+ *    3. One user pushbutton (BP3)
+ *
+ *  Only the user push button (BP3) is controllable by software:
+ *
+ *    - PE29.  Pressing the switch connect PE29 to ground.  Therefore, PE29
+ *      must be pulled high internally.  When the button is pressed the SAMA5
+ *      will sense "0" is on PE29.
+
+#define BUTTON_USER       0
+#define NUM_BUTTONS       1
+
+#define BUTTON_USER_BIT   (1 << BUTTON_USER)
+
+/* NAND *****************************************************************************/
+
+/* Address for transferring command bytes to the nandflash, CLE A22*/
+
+#define BOARD_EBICS3_NAND_CMDADDR   0x60400000
+
+/* Address for transferring address bytes to the nandflash, ALE A21*/
+
+#define BOARD_EBICS3_NAND_ADDRADDR  0x60200000
+
+/* Address for transferring data bytes to the nandflash.*/
+
+#define BOARD_EBICS3_NAND_DATAADDR  0x60000000
+
+/* PIO configuration ****************************************************************/
+/* PWM.  There are no dedicated PWM output pins available to the user for PWM
+ * testing.  Care must be taken because all PWM output pins conflict with some other
+ * usage of the pin by other devices. Furthermore, many of these pins have not been
+ * brought out to an external connector:
+ *
+ *    -----+---+---+----+------+----------------
+ *     PWM  PIN PER PIO   I/O   CONFLICTS
+ *    -----+---+---+----+------+----------------
+ *     PWM0 FI   B  PC28 J2.30  SPI1, ISI
+ *          H    B  PB0   ---   GMAC
+ *               B  PA20 J1.14  LCDC, ISI
+ *          L    B  PB1   ---   GMAC
+ *               B  PA21 J1.16  LCDC, ISI
+ *    -----+---+---+----+------+----------------
+ *     PWM1 FI   B  PC31 J2.36  HDMI
+ *          H    B  PB4   ---   GMAC
+ *               B  PA22 J1.18  LCDC, ISI
+ *          L    B  PB5   ---   GMAC
+ *               B  PE31 J3.20  ISI, HDMI
+ *               B  PA23 J1.20  LCDC, ISI
+ *    -----+---+---+----+------+----------------
+ *     PWM2 FI   B  PC29 J2.29  UART0, ISI, HDMI
+ *          H    C  PD5   ---   HSMCI0
+ *               B  PB8   ---   GMAC
+ *          L    C  PD6   ---   HSMCI0
+ *               B  PB9   ---   GMAC
+ *    -----+---+---+----+------+----------------
+ *     PWM3 FI   C  PD16  ---  SPI0, Audio
+ *          H    C  PD7   ---  HSMCI0
+ *               B  PB12 J3.7  GMAC
+ *          L    C  PD8   ---  HSMCI0
+ *               B  PB13  ---  GMAC
+ *    -----+---+---+----+------+----------------
+ */
+
+/* PWM channel 0:
+ *
+ * PA20 and PA21 can be used if the LCDC or ISI are not selected.  These outputs are
+ * available on J1, pins 14 and 16, respectively.
+ *
+ * If the GMAC is not selected, then PB0 and PB1 could also be used.  However,
+ * these pins are not available at the I/O expansion connectors.
+ */
+
+#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
+#  define PIO_PWM0_H  PIO_PWM0_H_2
+#  define PIO_PWM0_L  PIO_PWM0_L_2
+#elif !defined(CONFIG_SAMA5_GMAC)
+#  define PIO_PWM0_H  PIO_PWM0_H_1
+#  define PIO_PWM0_L  PIO_PWM0_L_1
+#endif
+
+/* PWM channel 1:
+ *
+ * PA22 and PA23 can be used if the LCDC or ISI are not selected.  These outputs are
+ * available on J1, pins 18 and 20, respectively.
+ *
+ * PE31 can be used if the ISI is not selected (and the HDMI is not being used).
+ * That signal is available at J3 pin 20.
+ *
+ * If the GMAC is not selected, then PB4 and PB5 could also be used.  However,
+ * these pins are not available at the I/O expansion connectors.
+ */
+
+#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
+#  define PIO_PWM1_H  PIO_PWM1_H_2
+#elif !defined(CONFIG_SAMA5_GMAC)
+#  define PIO_PWM1_H  PIO_PWM1_H_1
+#endif
+
+#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
+#  define PIO_PWM1_L  PIO_PWM1_L_3
+#elif !defined(CONFIG_SAMA5_ISI)
+#  define PIO_PWM1_L  PIO_PWM1_L_2
+#elif !defined(CONFIG_SAMA5_GMAC)
+#  define PIO_PWM1_L  PIO_PWM1_L_1
+#endif
+
+/* PWM channel 2:
+ *
+ * None of the output pin options are available at any of the I/O expansion
+ * connectors for PWM channel 2
+ */
+
+#if !defined(CONFIG_SAMA5_HSMCI0)
+#  define PIO_PWM2_H  PIO_PWM2_H_1
+#  define PIO_PWM2_L  PIO_PWM2_L_1
+#elif !defined(CONFIG_SAMA5_GMAC)
+#  define PIO_PWM2_H  PIO_PWM2_H_2
+#  define PIO_PWM2_L  PIO_PWM2_L_2
+#endif
+
+/* PWM channel 3:
+ *
+ * If the GMAC is not selected, then PB12 can used and is available at J3 pin 7.
+ * None of the other output pins are accessible at the I/O expansion connectors.
+ */
+
+#if !defined(CONFIG_SAMA5_GMAC)
+#  define PIO_PWM3_H  PIO_PWM3_H_2
+#  define PIO_PWM3_L  PIO_PWM3_L_2
+#elif !defined(CONFIG_SAMA5_HSMCI0)
+#  define PIO_PWM3_H  PIO_PWM3_H_1
+#  define PIO_PWM3_L  PIO_PWM3_L_1
+#endif
+
+/************************************************************************************
+ * Assembly Language Macros
+ ************************************************************************************/
+
+#ifdef __ASSEMBLY__
+	.macro	config_sdram
+	.endm
+#endif /* __ASSEMBLY__ */
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+/************************************************************************************
+ * Name: sam_boardinitialize
+ *
+ * Description:
+ *   All SAMA5 architectures must provide the following entry point.  This entry point
+ *   is called early in the initialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void sam_boardinitialize(void);
+
+/************************************************************************************
+ * Name: sam_phyirq
+ *
+ * Description:
+ *   This function may be called to register an interrupt handler that will be
+ *   called when an interrupt is received from a PHY.
+ *
+ ************************************************************************************/
+
+#if defined(CONFIG_NET) && (defined(CONFIG_SAMA5_EMAC0) || defined(CONFIG_SAMA5_GMAC)) && \
+    defined(CONFIG_SAMA5_PIOE_IRQ)
+xcpt_t sam_phyirq(int intf, xcpt_t irqhandler);
+#endif
+
+/************************************************************************************
+ * Name:  sam_ledinit, sam_setled, and sam_setleds
+ *
+ * Description:
+ *   If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board LEDs.  If
+ *   CONFIG_ARCH_LEDS is not defined, then the following interfaces are available to
+ *   control the LEDs from user applications.
+ *
+ ************************************************************************************/
+
+#ifndef CONFIG_ARCH_LEDS
+void sam_ledinit(void);
+void sam_setled(int led, bool ledon);
+void sam_setleds(uint8_t ledset);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_H */

configs/sama5d4-ek/include/board_384mhz.h

@@ -0,0 +1,217 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board_384mhz.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_384MHZ_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_384MHZ_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAMA5 device is running on a 12MHz internal RC.  These
+ * definitions will configure operational clocking.
+ *
+ * This is an alternative slower configuration that will produce a 48MHz USB clock
+ * with the required accuracy.  When used with OHCI, an additional requirement is
+ * the PLLACK be a multiple of 48MHz.  This setup results in a CPU clock of 384MHz.
+ *
+ *   MAINOSC:  Frequency = 12MHz (crystal)
+ *   PLLA: PLL Divider = 1, Multiplier = 64 to generate PLLACK = 768MHz
+ *   Master Clock (MCK): Source = PLLACK/2, Prescalar = 1, MDIV = 3 to generate
+ *     MCK      =  128MHz
+ *     CPU clock = 384MHz
+ */
+
+/* Main oscillator register settings.
+ *
+ *   The start up time should be should be:
+ *   Start Up Time = 8 * MOSCXTST / SLCK = 56 Slow Clock Cycles.
+ */
+
+#define BOARD_CKGR_MOR_MOSCXTST    (62 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
+
+/* PLLA configuration.
+ *
+ *   Divider = 1
+ *   Multipler = 64
+ */
+
+#define BOARD_CKGR_PLLAR_COUNT     (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
+#define BOARD_CKGR_PLLAR_OUT       (0)
+#define BOARD_CKGR_PLLAR_MUL       (63 << PMC_CKGR_PLLAR_MUL_SHIFT)
+#define BOARD_CKGR_PLLAR_DIV       PMC_CKGR_PLLAR_DIV_BYPASS
+
+/* PMC master clock register settings.
+ *
+ *  Master/Processor Clock Source Selection = PLLA
+ *  Master/Processor Clock Prescaler        = 1
+ *  PLLA Divider                            = 2
+ *  Master Clock Division (MDIV)            = 3
+ *
+ *  NOTE: Bit PLLADIV2 must always be set to 1 when MDIV is set to 3.
+ *
+ *  Prescaler input                         = 768MHz / 2 = 384MHz
+ *  Prescaler output                        = 384MHz / 1 = 384MHz
+ *  Processor Clock (PCK)                   = 384MHz
+ *  Master clock (MCK)                      = 396MHz / 3 = 128MHz
+ */
+
+#define BOARD_PMC_MCKR_CSS         PMC_MCKR_CSS_PLLA
+#define BOARD_PMC_MCKR_PRES        PMC_MCKR_PRES_DIV1
+#define BOARD_PMC_MCKR_PLLADIV     PMC_MCKR_PLLADIV2
+#define BOARD_PMC_MCKR_MDIV        PMC_MCKR_MDIV_PCKDIV3
+
+#if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \
+    defined(CONFIG_SAMA5_UDPHS)
+
+/* For OHCI Full-speed operations, the user has to perform the following:
+ *
+ *   1) Enable UHP peripheral clock, bit (1 << AT91C_ID_UHPHS) in PMC_PCER
+ *      register.
+ *   2) Select PLLACK as Input clock of OHCI part, USBS bit in PMC_USB
+ *      register.
+ *   3) Program the OHCI clocks (UHP48M and UHP12M) with USBDIV field in
+ *      PMC_USB register. USBDIV value is calculated regarding the PLLACK
+ *      value and USB Full-speed accuracy.
+ *   4) Enable the OHCI clocks, UHP bit in PMC_SCER register.
+ *
+ * "The USB Host controller requires 48 MHz and 12 MHz clocks for OHCI
+ *  full-speed operations. These clocks must be generated by a PLL with a
+ *  correct accuracy of ± 0.25% thanks to USBDIV field.
+ *
+ * "Thus the USB Host peripheral receives three clocks from the Power
+ *  Management Controller (PMC): the Peripheral Clock (MCK domain), the
+ *  UHP48M and the UHP12M (built-in UHP48M divided by four) used by the
+ *  OHCI to interface with the bus USB signals (Recovered 12 MHz domain)
+ *  in Full-speed operations"
+ *
+ *  USB Clock = PLLACK / (USBDIV + 1) = 48MHz
+ *  USBDIV    = PLLACK / 48MHz - 1
+ *            = 15
+ *
+ *  The maximum value of USBDIV is 15 corresponding to a divisor of 16.
+ *  REVISIT: However, using the divisor of (15+1) yields a frame rate
+ *  of 500 frames per second.  A divisor of (7+1) gives the correct 1MS
+ *  frame rate.  I cannot explain the factor of 2 difference.
+ */
+
+#  undef  BOARD_USE_UPLL                              /* Use PLLA as source clock */
+#  define BOARD_OHCI_INPUT         PMC_USB_USBS_PLLA  /* Input is PLLACK */
+#  if 1                                               /* REVISIT */
+#    define BOARD_OHCI_DIVIDER     (7)                /* Divided by 8 */
+#  else
+#    define BOARD_OHCI_DIVIDER     (15)               /* Divided by 16 */
+#  endif
+#endif
+
+/* ADC Configuration
+ *
+ * ADCClock = MCK / ((PRESCAL+1) * 2)
+ *
+ * Given:
+ *   MCK      = 128MHz
+ *   ADCClock = 8MHz
+ * Then:
+ *   PRESCAL   = 7
+ */
+
+#define BOARD_ADC_PRESCAL          (7)
+#define BOARD_TSD_STARTUP          (40)        /* 40 nanoseconds */
+#define BOARD_TSD_TRACKTIM         (2000)      /* Min 1µs at 8MHz */
+#define BOARD_TSD_DEBOUNCE         (10000000)  /* 10 milliseconds (units nanoseconds) */
+
+/* Resulting frequencies */
+
+#define BOARD_MAINOSC_FREQUENCY    (12000000)  /* MAINOSC: 12MHz crystal on-board */
+#define BOARD_PLLA_FREQUENCY       (768000000) /* PLLACK:  64 * 12Mhz / 1 */
+#define BOARD_PCK_FREQUENCY        (384000000) /* CPU:     PLLACK / 2 / 1  */
+#define BOARD_MCK_FREQUENCY        (128000000) /* MCK:     PLLACK / 2 / 1 / 3 */
+#define BOARD_ADCCLK_FREQUENCY     (8000000)   /* ADCCLK:  MCK / ((7+1)*2) */
+
+/* HSMCI clocking
+ *
+ * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
+ * divided by (2*(CLKDIV) + CLOCKODD + 2).
+ *
+ *   MCI_SPEED = MCK / (2*CLKDIV + CLOCKODD + 2)
+ *
+ * Where CLKDIV has a range of 0-255.
+ */
+
+/* MCK = 128MHz, CLKDIV = 159, MCI_SPEED = 128MHz / (2*159 + 0 + 2) = 400 KHz */
+
+#define HSMCI_INIT_CLKDIV          (159 << HSMCI_MR_CLKDIV_SHIFT)
+
+/* MCK = 128MHz, CLKDIV = 2 w/CLOCKODD, MCI_SPEED = 128MHz /(2*2 + 1 + 2) = 18.3 MHz */
+
+#define HSMCI_MMCXFR_CLKDIV        ((2 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
+
+/* MCK = 128MHz, CLKDIV = 2, MCI_SPEED = 128MHz /(2*2 + 0 + 2) = 21.3 MHz */
+
+#define HSMCI_SDXFR_CLKDIV         (2 << HSMCI_MR_CLKDIV_SHIFT)
+#define HSMCI_SDWIDEXFR_CLKDIV     HSMCI_SDXFR_CLKDIV
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+ #undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_384MHZ_H */

configs/sama5d4-ek/include/board_396mhz.h

@@ -0,0 +1,208 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board_396mhz.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_396MHZ_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_396MHZ_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAMA5 device is running on a 12MHz internal RC.  These
+ * definitions will configure operational clocking.
+ *
+ * This is the configuration provided in the Atmel example code.  This results in a
+ * CPU clock of 396MHz:
+ *
+ *   MAINOSC:  Frequency = 12MHz (crystal)
+ *   PLLA: PLL Divider = 1, Multiplier = 66 to generate PLLACK = 792MHz
+ *   Master Clock (MCK): Source = PLLACK/2, Prescalar = 1, MDIV = 3 to generate
+ *     MCK      =  132MHz
+ *     CPU clock = 396MHz
+ */
+
+/* Main oscillator register settings.
+ *
+ *   The start up time should be should be:
+ *   Start Up Time = 8 * MOSCXTST / SLCK = 56 Slow Clock Cycles.
+ */
+
+#define BOARD_CKGR_MOR_MOSCXTST    (62 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
+
+/* PLLA configuration.
+ *
+ *   Divider = 1
+ *   Multipler = 66
+ */
+
+#define BOARD_CKGR_PLLAR_COUNT     (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
+#define BOARD_CKGR_PLLAR_OUT       (0)
+#define BOARD_CKGR_PLLAR_MUL       (65 << PMC_CKGR_PLLAR_MUL_SHIFT)
+#define BOARD_CKGR_PLLAR_DIV       PMC_CKGR_PLLAR_DIV_BYPASS
+
+/* PMC master clock register settings.
+ *
+ *  Master/Processor Clock Source Selection = PLLA
+ *  Master/Processor Clock Prescaler        = 1
+ *  PLLA Divider                            = 2
+ *  Master Clock Division (MDIV)            = 3
+ *
+ *  NOTE: Bit PLLADIV2 must always be set to 1 when MDIV is set to 3.
+ *
+ *  Prescaler input                         = 792MHz / 2 = 396MHz
+ *  Prescaler output                        = 396MHz / 1 = 396MHz
+ *  Processor Clock (PCK)                   = 396MHz
+ *  Master clock (MCK)                      = 396MHz / 3 = 132MHz
+ */
+
+#define BOARD_PMC_MCKR_CSS         PMC_MCKR_CSS_PLLA
+#define BOARD_PMC_MCKR_PRES        PMC_MCKR_PRES_DIV1
+#define BOARD_PMC_MCKR_PLLADIV     PMC_MCKR_PLLADIV2
+#define BOARD_PMC_MCKR_MDIV        PMC_MCKR_MDIV_PCKDIV3
+
+/* ADC Configuration
+ *
+ * ADCClock = MCK / ((PRESCAL+1) * 2)
+ *
+ * Given:
+ *   MCK      = 132MHz
+ *   ADCClock = 8MHz
+ * Then:
+ *   PRESCAL  = 7.25
+ *
+ * PRESCAL=7 and MCK=132MHz yields ADC clock of 8.25MHz
+ */
+
+#define BOARD_ADC_PRESCAL          (7)
+#define BOARD_TSD_STARTUP          (40)        /* 40 nanoseconds */
+#define BOARD_TSD_TRACKTIM         (2000)      /* Min 1µs at 8MHz */
+#define BOARD_TSD_DEBOUNCE         (10000000)  /* 10 milliseconds (units nanoseconds) */
+
+/* Resulting frequencies */
+
+#define BOARD_MAINOSC_FREQUENCY    (12000000)  /* MAINOSC: 12MHz crystal on-board */
+#define BOARD_PLLA_FREQUENCY       (792000000) /* PLLACK:  66 * 12Mhz / 1 */
+#define BOARD_PCK_FREQUENCY        (396000000) /* CPU:     PLLACK / 2 / 1  */
+#define BOARD_MCK_FREQUENCY        (132000000) /* MCK:     PLLACK / 2 / 1 / 3 */
+#define BOARD_ADCCLK_FREQUENCY     (8250000)   /* ADCCLK:  MCK / ((7+1)*2) */
+
+#if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \
+    defined(CONFIG_SAMA5_UDPHS)
+
+/* The USB Host High Speed requires a 480 MHz clock (UPLLCK) for the embedded
+ * High-speed transceivers. UPLLCK is the output of the 480 MHz UTMI PLL
+ * (UPLL).  The source clock of the UTMI PLL is the Main OSC output:  Either
+ * the 12MHz internal RC oscillator on a an external 12MHz crystal.  The
+ * Main OSC must be 12MHz because the UPLL has a built-in 40x multiplier.
+ *
+ * For High-speed operations, the user has to perform the following:
+ *
+ *   1) Enable UHP peripheral clock, bit (1 << AT91C_ID_UHPHS) in
+ *      PMC_PCER register.
+ *   2) Write CKGR_PLLCOUNT field in PMC_UCKR register.
+ *   3) Enable UPLL, bit AT91C_CKGR_UPLLEN in PMC_UCKR register.
+ *   4) Wait until UTMI_PLL is locked. LOCKU bit in PMC_SR register
+ *   5) Enable BIAS, bit AT91C_CKGR_BIASEN in PMC_UCKR register.
+ *   6) Select UPLLCK as Input clock of OHCI part, USBS bit in PMC_USB
+ *      register.
+ *   7) Program the OHCI clocks (UHP48M and UHP12M) with USBDIV field in
+ *      PMC_USB register. USBDIV must be 9 (division by 10) if UPLLCK is
+ *      selected.
+ *   8) Enable OHCI clocks, UHP bit in PMC_SCER register.
+ *
+ * Steps 2 through 7 performed here.  1 and 8 are performed in the EHCI
+ * driver is initialized.
+ */
+
+#  define BOARD_USE_UPLL             1     /* Use UPLL for clock source */
+#  define BOARD_CKGR_UCKR_UPLLCOUNT  (15)  /* Maximum value */
+#  define BOARD_CKGR_UCKR_BIASCOUNT  (15)  /* Maximum value */
+#endif
+
+/* HSMCI clocking
+ *
+ * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
+ * divided by (2*(CLKDIV) + CLOCKODD + 2).
+ *
+ *   MCI_SPEED = MCK / (2*CLKDIV + CLOCKODD + 2)
+ *
+ * Where CLKDIV has a range of 0-255.
+ */
+
+/* MCK = 132MHz, CLKDIV = 164, MCI_SPEED = 132MHz / (2*164 + 0 + 2) = 400 KHz */
+
+#define HSMCI_INIT_CLKDIV          (164 << HSMCI_MR_CLKDIV_SHIFT)
+
+/* MCK = 132MHz, CLKDIV = 2 w/CLOCKODD, MCI_SPEED = 132MHz /(2*2 + 1 + 2) = 18.9 MHz */
+
+#define HSMCI_MMCXFR_CLKDIV        ((2 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
+
+/* MCK = 132MHz, CLKDIV = 2, MCI_SPEED = 132MHz /(2*2 + 0 + 2) = 22 MHz */
+
+#define HSMCI_SDXFR_CLKDIV         (2 << HSMCI_MR_CLKDIV_SHIFT)
+#define HSMCI_SDWIDEXFR_CLKDIV     HSMCI_SDXFR_CLKDIV
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_396MHZ_H */

configs/sama5d4-ek/include/board_528mhz.h

@@ -0,0 +1,207 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board_528mhz.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_528MHZ_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_528MHZ_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAMA5 device is running on a 12MHz internal RC.  These
+ * definitions will configure operational clocking.
+ *
+ * This is the configuration results in a CPU clock of 528MHz:
+ *
+ *   MAINOSC:  Frequency = 12MHz (crystal)
+ *   PLLA: PLL Divider = 1, Multiplier = 43+1 to generate PLLACK = 528MHz
+ *   Master Clock (MCK): Source = PLLACK/1, Prescalar = 1, MDIV = 4 to generate
+ *     MCK      =  132MHz
+ *     CPU clock = 528MHz
+ */
+
+/* Main oscillator register settings.
+ *
+ *   The start up time should be should be:
+ *   Start Up Time = 8 * MOSCXTST / SLCK = 56 Slow Clock Cycles.
+ */
+
+#define BOARD_CKGR_MOR_MOSCXTST    (62 << PMC_CKGR_MOR_MOSCXTST_SHIFT) /* Start-up Time */
+
+/* PLLA configuration.
+ *
+ *   Divider = 1
+ *   Multipler = 43+1
+ */
+
+#define BOARD_CKGR_PLLAR_COUNT     (63 << PMC_CKGR_PLLAR_COUNT_SHIFT)
+#define BOARD_CKGR_PLLAR_OUT       (0)
+#define BOARD_CKGR_PLLAR_MUL       (43 << PMC_CKGR_PLLAR_MUL_SHIFT)
+#define BOARD_CKGR_PLLAR_DIV       PMC_CKGR_PLLAR_DIV_BYPASS
+
+/* PMC master clock register settings.
+ *
+ *  Master/Processor Clock Source Selection = PLLA
+ *  Master/Processor Clock Prescaler        = 1
+ *  PLLA Divider                            = 1
+ *  Master Clock Division (MDIV)            = 4
+ *
+ *  NOTE: Bit PLLADIV2 must always be set to 1 when MDIV is set to 3.
+ *
+ *  Prescaler input                         = 528MHz / 1 = 528MHz
+ *  Prescaler output                        = 528MHz / 1 = 528MHz
+ *  Processor Clock (PCK)                   = 528MHz
+ *  Master clock (MCK)                      = 528MHz / 4 = 132MHz
+ */
+
+#define BOARD_PMC_MCKR_CSS         PMC_MCKR_CSS_PLLA
+#define BOARD_PMC_MCKR_PRES        PMC_MCKR_PRES_DIV1
+#define BOARD_PMC_MCKR_PLLADIV     PMC_MCKR_PLLADIV1
+#define BOARD_PMC_MCKR_MDIV        PMC_MCKR_MDIV_PCKDIV4
+
+/* ADC Configuration
+ *
+ * ADCClock = MCK / ((PRESCAL+1) * 2)
+ *
+ * Given:
+ *   MCK      = 132MHz
+ *   ADCClock = 8MHz
+ * Then:
+ *   PRESCAL  = 7.25
+ *
+ * PRESCAL=7 and MCK=132MHz yields ADC clock of 8.25MHz
+ */
+
+#define BOARD_ADC_PRESCAL          (7)
+#define BOARD_TSD_STARTUP          (40)        /* 40 nanoseconds */
+#define BOARD_TSD_TRACKTIM         (2000)      /* Min 1µs at 8MHz */
+#define BOARD_TSD_DEBOUNCE         (10000000)  /* 10 milliseconds (units nanoseconds) */
+
+/* Resulting frequencies */
+
+#define BOARD_MAINOSC_FREQUENCY    (12000000)  /* MAINOSC: 12MHz crystal on-board */
+#define BOARD_PLLA_FREQUENCY       (528000000) /* PLLACK:  44 * 12Mhz / 1 */
+#define BOARD_PCK_FREQUENCY        (528000000) /* CPU:     PLLACK / 1 / 1  */
+#define BOARD_MCK_FREQUENCY        (132000000) /* MCK:     PLLACK / 1 / 1 / 4 */
+#define BOARD_ADCCLK_FREQUENCY     (8250000)   /* ADCCLK:  MCK / ((7+1)*2) */
+
+#if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \
+    defined(CONFIG_SAMA5_UDPHS)
+
+/* The USB Host High Speed requires a 480 MHz clock (UPLLCK) for the embedded
+ * High-speed transceivers. UPLLCK is the output of the 480 MHz UTMI PLL
+ * (UPLL).  The source clock of the UTMI PLL is the Main OSC output:  Either
+ * the 12MHz internal RC oscillator on a an external 12MHz crystal.  The
+ * Main OSC must be 12MHz because the UPLL has a built-in 40x multiplier.
+ *
+ * For High-speed operations, the user has to perform the following:
+ *
+ *   1) Enable UHP peripheral clock, bit (1 << AT91C_ID_UHPHS) in
+ *      PMC_PCER register.
+ *   2) Write CKGR_PLLCOUNT field in PMC_UCKR register.
+ *   3) Enable UPLL, bit AT91C_CKGR_UPLLEN in PMC_UCKR register.
+ *   4) Wait until UTMI_PLL is locked. LOCKU bit in PMC_SR register
+ *   5) Enable BIAS, bit AT91C_CKGR_BIASEN in PMC_UCKR register.
+ *   6) Select UPLLCK as Input clock of OHCI part, USBS bit in PMC_USB
+ *      register.
+ *   7) Program the OHCI clocks (UHP48M and UHP12M) with USBDIV field in
+ *      PMC_USB register. USBDIV must be 9 (division by 10) if UPLLCK is
+ *      selected.
+ *   8) Enable OHCI clocks, UHP bit in PMC_SCER register.
+ *
+ * Steps 2 through 7 performed here.  1 and 8 are performed in the EHCI
+ * driver is initialized.
+ */
+
+#  define BOARD_USE_UPLL             1     /* Use UPLL for clock source */
+#  define BOARD_CKGR_UCKR_UPLLCOUNT  (15)  /* Maximum value */
+#  define BOARD_CKGR_UCKR_BIASCOUNT  (15)  /* Maximum value */
+#endif
+
+/* HSMCI clocking
+ *
+ * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
+ * divided by (2*(CLKDIV) + CLOCKODD + 2).
+ *
+ *   MCI_SPEED = MCK / (2*CLKDIV + CLOCKODD + 2)
+ *
+ * Where CLKDIV has a range of 0-255.
+ */
+
+/* MCK = 132MHz, CLKDIV = 164, MCI_SPEED = 132MHz / (2*164 + 0 + 2) = 400 KHz */
+
+#define HSMCI_INIT_CLKDIV          (164 << HSMCI_MR_CLKDIV_SHIFT)
+
+/* MCK = 132MHz, CLKDIV = 2 w/CLOCKODD, MCI_SPEED = 132MHz /(2*2 + 1 + 2) = 18.9 MHz */
+
+#define HSMCI_MMCXFR_CLKDIV        ((2 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
+
+/* MCK = 132MHz, CLKDIV = 2, MCI_SPEED = 132MHz /(2*2 + 0 + 2) = 22 MHz */
+
+#define HSMCI_SDXFR_CLKDIV         (2 << HSMCI_MR_CLKDIV_SHIFT)
+#define HSMCI_SDWIDEXFR_CLKDIV     HSMCI_SDXFR_CLKDIV
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_528MHZ_H */

configs/sama5d4-ek/include/board_memorymap.h

@@ -0,0 +1,73 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board_memorymap.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_MEMORYMAP_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_MEMORYMAP_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_MEMORYMAP_H */

configs/sama5d4-ek/include/board_sdram.h

@@ -0,0 +1,167 @@
+/************************************************************************************
+ * configs/sama5d4-ek/include/board_sdram.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_SDRAM_H
+#define __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_SDRAM_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include "sam_pmc.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+/* After power-on reset, the SAMA5 device is running on a 12MHz internal RC.  When
+ * booting from SDRAM, NuttX is loaded in SDRAM by an intermediate bootloader.  That
+ * bootloader had to have already configured the PLL and SDRAM for proper operation.
+ *
+ * In this case, we do not reconfigure the clocking.  Rather, we need to query
+ * the register settings to determine the clock frequencies.  We can only assume that
+ * the Main clock source in the on-board 12MHz crystal.
+ */
+
+#define BOARD_MAINOSC_FREQUENCY    (12000000)  /* MAINOSC: 12MHz crystal on-board */
+#define BOARD_PLLA_FREQUENCY       (sam_pllack_frequency(BOARD_MAINOSC_FREQUENCY))
+#define BOARD_PLLADIV2_FREQUENCY   (sam_plladiv2_frequency(BOARD_MAINOSC_FREQUENCY))
+#define BOARD_PCK_FREQUENCY        (sam_pck_frequency(BOARD_MAINOSC_FREQUENCY))
+#define BOARD_MCK_FREQUENCY        (sam_mck_frequency(BOARD_MAINOSC_FREQUENCY))
+
+#if defined(CONFIG_SAMA5_EHCI) || defined(CONFIG_SAMA5_OHCI) || \
+    defined(CONFIG_SAMA5_UDPHS)
+
+/* The USB Host High Speed requires a 480 MHz clock (UPLLCK) for the embedded
+ * High-speed transceivers. UPLLCK is the output of the 480 MHz UTMI PLL
+ * (UPLL).  The source clock of the UTMI PLL is the Main OSC output:  Either
+ * the 12MHz internal RC oscillator on a an external 12MHz crystal.  The
+ * Main OSC must be 12MHz because the UPLL has a built-in 40x multiplier.
+ *
+ * For High-speed operations, the user has to perform the following:
+ *
+ *   1) Enable UHP peripheral clock, bit (1 << AT91C_ID_UHPHS) in
+ *      PMC_PCER register.
+ *   2) Write CKGR_PLLCOUNT field in PMC_UCKR register.
+ *   3) Enable UPLL, bit AT91C_CKGR_UPLLEN in PMC_UCKR register.
+ *   4) Wait until UTMI_PLL is locked. LOCKU bit in PMC_SR register
+ *   5) Enable BIAS, bit AT91C_CKGR_BIASEN in PMC_UCKR register.
+ *   6) Select UPLLCK as Input clock of OHCI part, USBS bit in PMC_USB
+ *      register.
+ *   7) Program the OHCI clocks (UHP48M and UHP12M) with USBDIV field in
+ *      PMC_USB register. USBDIV must be 9 (division by 10) if UPLLCK is
+ *      selected.
+ *   8) Enable OHCI clocks, UHP bit in PMC_SCER register.
+ *
+ * Steps 2 through 7 performed here.  1 and 8 are performed in the EHCI
+ * driver is initialized.
+ */
+
+#  define BOARD_USE_UPLL             1     /* Use UPLL for clock source */
+#  define BOARD_CKGR_UCKR_UPLLCOUNT  (15)  /* Maximum value */
+#  define BOARD_CKGR_UCKR_BIASCOUNT  (15)  /* Maximum value */
+#endif
+
+/* ADC Configuration
+ *
+ * ADCClock = MCK / ((PRESCAL+1) * 2)
+ * PRESCAL  = (MCK / (2 * ADCClock) - 1)
+ */
+
+#define BOARD_ADCCLK_FREQUENCY     (8000000)   /* ADCCLK:  MCK / ((7+1)*2) */
+#define BOARD_ADCCLK_FREQUENCY \
+  ((BOARD_PLLADIV2_FREQUENCY / (2 *BOARD_PLLADIV2_FREQUENCY)) - 1)
+
+#define BOARD_ADC_PRESCAL          (7)
+#define BOARD_TSD_STARTUP          (40)        /* 40 nanoseconds */
+#define BOARD_TSD_TRACKTIM         (2000)      /* Min 1µs at 8MHz */
+#define BOARD_TSD_DEBOUNCE         (10000000)  /* 10 milliseconds (units nanoseconds) */
+
+/* HSMCI clocking
+ *
+ * Multimedia Card Interface clock (MCCK or MCI_CK) is Master Clock (MCK)
+ * divided by (2*(CLKDIV) + CLOCKODD + 2).
+ *
+ *   CLKFULLDIV = 2*CLKDIV + CLOCKODD;
+ *   MCI_SPEED  = MCK / (CLKFULLDIV + 2)
+ *   CLKFULLDIV = MCK / MCI_SPEED - 2
+ *
+ *   CLKDIV     = CLKFULLDIV >> 1
+ *   CLOCKODD   = CLKFULLDIV & 1
+ *
+ * Where CLKDIV has a range of 0-255.
+ */
+
+/* Initial clock: 400 KHz (target) */
+
+#define HSMCI_INIT_CLKDIV          sam_hsmci_clkdiv(400000)
+
+/* MMC transfer clock: 20 MHz (target) */
+
+#define HSMCI_MMCXFR_CLKDIV        sam_hsmci_clkdiv(20000000)
+
+/* SD transfer clock: 25 MHz (target) */
+
+#define HSMCI_SDXFR_CLKDIV         sam_hsmci_clkdiv(25000000)
+
+#define HSMCI_SDWIDEXFR_CLKDIV     HSMCI_SDXFR_CLKDIV
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !__ASSEMBLY__ */
+#endif  /* __CONFIGS_SAMA5D4_EK_INCLUDE_BOARD_SDRAM_H */

configs/sama5d4-ek/nsh/Make.defs

@@ -0,0 +1,126 @@
+############################################################################
+# configs/sama5d4-ek/nsh/Make.defs
+#
+#   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+include ${TOPDIR}/tools/Config.mk
+include ${TOPDIR}$(DELIM)arch$(DELIM)arm$(DELIM)src$(DELIM)armv7-a$(DELIM)Toolchain.defs
+
+ifeq ($(CONFIG_SAMA5_BOOT_ISRAM),y)
+  LDSCRIPT = isram.ld
+endif
+
+ifeq ($(CONFIG_SAMA5_BOOT_SDRAM),y)
+  LDSCRIPT = ddram.ld
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include}" -isystem "${shell cygpath -w $(TOPDIR)$(DELIM)include$(DELIM)cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
+else
+  # Linux/Cygwin-native toolchain
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)$(DELIM)include -isystem $(TOPDIR)$(DELIM)include$(DELIM)cxx
+  ARCHSCRIPT = -T$(TOPDIR)$(DELIM)configs$(DELIM)$(CONFIG_ARCH_BOARD)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(ARCROSSDEV)ar rcs
+NM = $(ARCROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCPUFLAGS = -mcpu=cortex-a5 -mfpu=vfpv4-d16
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)$(DELIM)binfmt$(DELIM)libnxflat$(DELIM)gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+ifeq ($(CONFIG_HOST_WINDOWS),y)
+  HOSTEXEEXT = .exe
+else
+  HOSTEXEEXT =
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native host tools
+  DIRLINK = $(TOPDIR)$(DELIM)tools$(DELIM)copydir.sh
+  DIRUNLINK = $(TOPDIR)$(DELIM)tools$(DELIM)unlink.sh
+  MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mknulldeps.sh
+else
+  # Linux/Cygwin-native host tools
+  MKDEP = $(TOPDIR)$(DELIM)tools$(DELIM)mkdeps$(HOSTEXEEXT)
+endif
+

configs/sama5d4-ek/nsh/setenv.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+# configs/sama5d4-ek/nsh/setenv.sh
+#
+#   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+if [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the Atmel GCC
+# toolchain under Windows.  You will also have to edit this if you install
+# this toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Atmel/Atmel Toolchain/ARM GCC/Native/4.7.3.99/arm-gnu-toolchain/bin"
+
+# This is the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+
+# These are the Cygwin paths to the locations where I installed the Atollic
+# toolchain under windows.  You will also have to edit this if you install
+# the Atollic toolchain in any other location.  /usr/bin is added before
+# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
+# at those locations as well.
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+#export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"

configs/sama5d4-ek/scripts/ddram.ld

@@ -0,0 +1,124 @@
+/****************************************************************************
+ * configs/sama5d4-ek/scripts/ddram.ld
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/* The SAMA5D4 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
+ * This memory configuration, however, loads into the 256MB SDRAM on board
+ * the SAMA5D4-EK which lies at 0x2000:0000.  An offset 0x00008000 is
+ * reserved by the bootloader.
+ *
+ * Vectors in low memory are assumed and 16KB of ISRAM is reserved at the
+ * high end of ISRAM for the page table.
+ */
+
+MEMORY
+{
+	isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K - 16K
+	sdram (W!RX) : ORIGIN = 0x20008000, LENGTH = 256M - 32K
+}
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(entry)
+ENTRY(_stext)
+
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		*(.ARM.extab*)
+		*(.gnu.linkonce.armextab.*)
+		_etext = ABSOLUTE(.);
+	} > sdram
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > sdram
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > sdram
+
+	/* .ARM.exidx is sorted, so has to go in its own output section.  */
+
+	PROVIDE_HIDDEN (__exidx_start = .);
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > sdram
+	PROVIDE_HIDDEN (__exidx_end = .);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sdram
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sdram
+
+	/* Stabs debugging sections. */
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}

configs/sama5d4-ek/scripts/isram.ld

@@ -0,0 +1,120 @@
+/****************************************************************************
+ * configs/sama5d4-ek/scripts/isram.ld
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/* The SAMA5D44 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
+ *
+ * Vectors in low memory are assumed and 16KB of ISRAM is reserved at the
+ * high end of ISRAM for the page table.
+ */
+
+MEMORY
+{
+	isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K - 16K
+}
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(entry)
+ENTRY(_stext)
+
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		*(.ARM.extab*)
+		*(.gnu.linkonce.armextab.*)
+		_etext = ABSOLUTE(.);
+	} > isram
+
+	.init_section : {
+		_sinit = ABSOLUTE(.);
+		*(.init_array .init_array.*)
+		_einit = ABSOLUTE(.);
+	} > isram
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} > isram
+
+	/* .ARM.exidx is sorted, so has to go in its own output section.  */
+
+	PROVIDE_HIDDEN (__exidx_start = .);
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > isram
+	PROVIDE_HIDDEN (__exidx_end = .);
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > isram
+
+	.bss : {
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > isram
+
+	/* Stabs debugging sections. */
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}

configs/sama5d4-ek/src/Makefile

@@ -0,0 +1,170 @@
+############################################################################
+# configs/sama5d4-ek/src/Makefile
+#
+#   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+CFLAGS += -I$(TOPDIR)/sched
+
+ASRCS =
+AOBJS = $(ASRCS:.S=$(OBJEXT))
+
+CSRCS = sam_boot.c
+
+ifeq ($(CONFIG_HAVE_CXX),y)
+CSRCS += sam_cxxinitialize.c
+endif
+
+ifeq ($(CONFIG_SAMA5_SPI0),y)
+CSRCS += sam_spi.c
+else
+ifeq ($(CONFIG_SAMA5_SPI1),y)
+CSRCS += sam_spi.c
+endif
+endif
+
+ifeq ($(CONFIG_SAMA5_DDRCS),y)
+CSRCS += sam_sdram.c
+endif
+
+ifeq ($(CONFIG_SAMA5_EBICS3_NAND),y)
+CSRCS += sam_nandflash.c
+endif
+
+ifeq ($(CONFIG_MTD_AT25),y)
+ifeq ($(CONFIG_SAMA5_SPI0),y)
+CSRCS += sam_at25.c
+endif
+endif
+
+ifeq ($(CONFIG_SAMA5_HSMCI0),y)
+CSRCS += sam_hsmci.c
+else
+ifeq ($(CONFIG_SAMA5_HSMCI1),y)
+CSRCS += sam_hsmci.c
+endif
+endif
+
+ifeq ($(CONFIG_SAMA5_UHPHS),y)
+CSRCS += sam_usb.c
+else
+ifeq ($(CONFIG_SAMA5_UDPHS),y)
+CSRCS += sam_usb.c
+endif
+endif
+
+ifeq ($(CONFIG_SAMA5_EMAC0),y)
+CSRCS += sam_ethernet.c
+else
+ifeq ($(CONFIG_SAMA5_GMAC),y)
+CSRCS += sam_ethernet.c
+endif
+endif
+
+ifeq ($(CONFIG_NSH_ARCHINIT),y)
+CSRCS += sam_nsh.c
+endif
+
+ifeq ($(CONFIG_ADC),y)
+CSRCS += sam_adc.c
+endif
+
+ifeq ($(CONFIG_PWM),y)
+CSRCS += sam_pwm.c
+endif
+
+ifeq ($(CONFIG_CAN),y)
+CSRCS += sam_can.c
+endif
+
+ifeq ($(CONFIG_USBMSC),y)
+CSRCS += sam_usbmsc.c
+endif
+
+ifeq ($(CONFIG_ARCH_FPU),y)
+CSRCS += sam_ostest.c
+endif
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += sam_autoleds.c
+else
+CSRCS += sam_userleds.c
+endif
+
+ifeq ($(CONFIG_ARCH_BUTTONS),y)
+CSRCS += sam_buttons.c
+endif
+
+COBJS = $(CSRCS:.c=$(OBJEXT))
+
+SRCS = $(ASRCS) $(CSRCS)
+OBJS = $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(WINTOOL),y)
+  CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}"
+  CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/common}"
+  CFLAGS += -I "${shell cygpath -w $(ARCH_SRCDIR)/armv7-a}"
+else
+  CFLAGS += -I$(ARCH_SRCDIR)/chip
+  CFLAGS += -I$(ARCH_SRCDIR)/common
+  CFLAGS += -I$(ARCH_SRCDIR)/armv7-a
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, libboard$(LIBEXT))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep

configs/sama5d4-ek/src/sam_adc.c

@@ -0,0 +1,118 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/up_adc.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/analog/adc.h>
+
+#include "sam_adc.h"
+#include "sama5d4-ek.h"
+
+#ifdef CONFIG_ADC
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Configuration ********************************************************************/
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: adc_devinit
+ *
+ * Description:
+ *   All STM32 architectures must provide the following interface to work with
+ *   examples/adc.
+ *
+ ************************************************************************************/
+
+int adc_devinit(void)
+{
+#ifdef CONFIG_SAMA5_ADC
+  static bool initialized = false;
+  struct adc_dev_s *adc;
+  int ret;
+
+  /* Check if we have already initialized */
+
+  if (!initialized)
+    {
+      /* Call stm32_adcinitialize() to get an instance of the ADC interface */
+
+      adc = sam_adc_initialize();
+      if (adc == NULL)
+        {
+          adbg("ERROR: Failed to get ADC interface\n");
+          return -ENODEV;
+        }
+
+      /* Register the ADC driver at "/dev/adc0" */
+
+      ret = adc_register("/dev/adc0", adc);
+      if (ret < 0)
+        {
+          adbg("adc_register failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+#else
+  return -ENOSYS;
+#endif
+}
+
+#endif /* CONFIG_ADC */

configs/sama5d4-ek/src/sam_at25.c

@@ -0,0 +1,140 @@
+/****************************************************************************
+ * config/sama5d4-ek/src/sam_at25.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/mount.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/spi/spi.h>
+#include <nuttx/mtd/mtd.h>
+#include <nuttx/fs/nxffs.h>
+
+#include "sam_spi.h"
+#include "sama5d4-ek.h"
+
+#ifdef HAVE_AT25
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_at25_automount
+ *
+ * Description:
+ *   Initialize and configure the AT25 serial FLASH
+ *
+ ****************************************************************************/
+
+int sam_at25_automount(int minor)
+{
+  FAR struct spi_dev_s *spi;
+  FAR struct mtd_dev_s *mtd;
+  static bool initialized = false;
+  int ret;
+
+  /* Have we already initialized? */
+
+  if (!initialized)
+    {
+      /* No.. Get the SPI port driver */
+
+      spi = up_spiinitialize(AT25_PORT);
+      if (!spi)
+        {
+          fdbg("ERROR: Failed to initialize SPI port %d\n", AT25_PORT);
+          return -ENODEV;
+        }
+
+      /* Now bind the SPI interface to the AT25 SPI FLASH driver */
+
+      mtd = at25_initialize(spi);
+      if (!mtd)
+        {
+          fdbg("ERROR: Failed to bind SPI port %d to the AT25 FLASH driver\n");
+          return -ENODEV;
+        }
+
+#if defined(CONFIG_SAMA5D4EK_AT25_FTL)
+      /* And finally, use the FTL layer to wrap the MTD driver as a block driver */
+
+      ret = ftl_initialize(AT25_MINOR, mtd);
+      if (ret < 0)
+        {
+          fdbg("ERROR: Failed to initialize the FTL layer: %d\n", ret);
+          return ret;
+        }
+
+#elif defined(CONFIG_SAMA5D4EK_AT25_NXFFS)
+      /* Initialize to provide NXFFS on the MTD interface */
+
+      ret = nxffs_initialize(mtd);
+      if (ret < 0)
+        {
+          fdbg("ERROR: NXFFS initialization failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Mount the file system at /mnt/at25 */
+
+      ret = mount(NULL, "/mnt/at25", "nxffs", 0, NULL);
+      if (ret < 0)
+        {
+          fdbg("ERROR: Failed to mount the NXFFS volume: %d\n", errno);
+          return ret;
+        }
+#endif
+      /* Now we are initializeed */
+
+      initialized = true;
+    }
+
+  return OK;
+}
+
+#endif /* HAVE_AT25 */

configs/sama5d4-ek/src/sam_autoleds.c

@@ -0,0 +1,173 @@
+/****************************************************************************
+ * configs/sama5d4-ek/src/sam_autoleds.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
+ * by software.  A  blue LED is controlled via PIO pins.  A red LED normally
+ * provides an indication that power is supplied to the board but can also
+ * be controlled via software.
+ *
+ *   PE25.  This blue LED is pulled high and is illuminated by pulling PE25
+ *   low.
+ *
+ *   PE24.  The red LED is also pulled high but is driven by a transistor so
+ *   that it is illuminated when power is applied even if PE24 is not
+ *   configured as an output.  If PE24 is configured as an output, then the
+ *   LCD is illuminated by a low output.
+ *
+ * These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
+ * defined.  In that case, the usage by the board port is defined in
+ * include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
+ * events as follows:
+ *
+ *   SYMBOL            Val Meaning                     LED state
+ *                                                    Blue     Red
+ *   ----------------- --- -----------------------  -------- --------
+ *   LED_STARTED        0  NuttX has been started     OFF      OFF
+ *   LED_HEAPALLOCATE   0  Heap has been allocated    OFF      OFF
+ *   LED_IRQSENABLED    0  Interrupts enabled         OFF      OFF
+ *   LED_STACKCREATED   1  Idle stack created         ON       OFF
+ *   LED_INIRQ          2  In an interrupt              No change
+ *   LED_SIGNAL         2  In a signal handler          No change
+ *   LED_ASSERTION      2  An assertion failed          No change
+ *   LED_PANIC          3  The system has crashed     OFF      Blinking
+ *   LED_IDLE          N/A MCU is is sleep mode         Not used
+ *
+ * Thus if the blue LED is statically on, NuttX has successfully booted and
+ * is, apparently, running normally.  If the red is flashing at
+ * approximately 2Hz, then a fatal error has been detected and the system
+ * has halted.
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "sam_pio.h"
+#include "sama5d4-ek.h"
+
+#ifdef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
+ * with CONFIG_DEBUG_VERBOSE too)
+ */
+
+#ifdef CONFIG_DEBUG_LEDS
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_led_initialize
+ ****************************************************************************/
+
+void board_led_initialize(void)
+{
+  /* Configure LED PIOs for output */
+
+  sam_configpio(PIO_BLUE);
+  sam_configpio(PIO_RED);
+}
+
+/****************************************************************************
+ * Name: board_led_on
+ ****************************************************************************/
+
+void board_led_on(int led)
+{
+  bool blueoff = true;  /* Low illuminates */
+  bool redon   = false; /* High illuminates */
+
+  switch (led)
+    {
+      case 0:  /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED */
+        break;
+
+      case 1:  /* LED_STACKCREATED */
+        blueoff = false;
+        break;
+
+      default:
+      case 2:  /* LED_INIRQ, LED_SIGNAL, LED_ASSERTION */
+        return;
+
+      case 3:  /* LED_PANIC */
+        redon = true;
+        break;
+    }
+
+  sam_piowrite(PIO_BLUE, blueoff);
+  sam_piowrite(PIO_RED, redon);
+}
+
+/****************************************************************************
+ * Name: board_led_off
+ ****************************************************************************/
+
+void board_led_off(int led)
+{
+  if (led != 2)
+    {
+      sam_piowrite(PIO_BLUE, true);  /* Low illuminates */
+      sam_piowrite(PIO_RED, false);  /* High illuminates */
+    }
+}
+
+#endif /* CONFIG_ARCH_LEDS */

configs/sama5d4-ek/src/sam_boot.c

@@ -0,0 +1,150 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/sam_boot.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include "sama5d4-ek.h"
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: sam_boardinitialize
+ *
+ * Description:
+ *   All SAMA5 architectures must provide the following entry point.  This entry
+ *   point is called early in the intitialization -- after all memory has been
+ *   configured and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void sam_boardinitialize(void)
+{
+  /* Configure SPI chip selects if 1) SPI is enable, and 2) the weak function
+   * sam_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_SAMA5_SPI0) || defined(CONFIG_SAMA5_SPI1)
+  if (sam_spiinitialize)
+    {
+      sam_spiinitialize();
+    }
+#endif
+
+#if defined(CONFIG_SAMA5_DDRCS) && !defined(CONFIG_SAMA5_BOOT_SDRAM)
+
+  /* Configure SDRAM if (1) SDRAM has been enalbled in the NuttX configuration and
+   * (2) if we are not currently running out of SDRAM.  If we are now running out
+   * of SDRAM then we have to assume that some second level bootloader has properly
+   * configured SDRAM for our use.
+   */
+
+  sam_sdram_config();
+
+#endif
+
+  /* Initialize USB if the 1) the HS host or device controller is in the
+   * configuration and 2) the weak function sam_usbinitialize() has been brought
+   * into the build. Presumeably either CONFIG_USBDEV or CONFIG_USBHOST is also
+   * selected.
+   */
+
+#if defined(CONFIG_SAMA5_UHPHS) || defined(CONFIG_SAMA5_UDPHS)
+  if (sam_usbinitialize)
+    {
+      sam_usbinitialize();
+    }
+#endif
+
+  /* Configure board resources to support networkingif the 1) networking is enabled,
+   * 2) the EMAC or GMAC module is enabled, and 2) the weak function
+   * sam_netinitialize() has been brought into the build.
+   */
+
+#ifdef HAVE_NETWORK
+  if (sam_netinitialize)
+    {
+      sam_netinitialize();
+    }
+#endif
+
+#ifdef CONFIG_ARCH_LEDS
+  /* Configure on-board LEDs if LED support has been selected. */
+
+  board_led_initialize();
+#endif
+}
+
+/****************************************************************************
+ * Name: board_initialize
+ *
+ * Description:
+ *   If CONFIG_BOARD_INITIALIZE is selected, then an additional
+ *   initialization call will be performed in the boot-up sequence to a
+ *   function called board_initialize().  board_initialize() will be
+ *   called immediately after up_intiialize() is called and just before the
+ *   initial application is started.  This additional initialization phase
+ *   may be used, for example, to initialize board-specific device drivers.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_BOARD_INITIALIZE
+void board_initialize(void)
+{
+  /* Perform NSH initialization here instead of from the NSH.  This
+   * alternative NSH initialization is necessary when NSH is ran in user-space
+   * but the initialization function must run in kernel space.
+   */
+
+#if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_NSH_ARCHINIT)
+  (void)nsh_archinitialize();
+#endif
+}
+#endif /* CONFIG_BOARD_INITIALIZE */

configs/sama5d4-ek/src/sam_buttons.c

@@ -0,0 +1,172 @@
+/****************************************************************************
+ * configs/sama5d4-ek/src/sam_buttons.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+/* There are five push button switches on the SAMA4D4-EK base board:
+ *
+ *   1. One Reset, board reset (BP1)
+ *   2. One Wake up, push button to bring the processor out of low power mode
+ *     (BP2)
+ *   3. One User momentary Push Button
+ *   4. One Disable CS Push Button
+ *
+ * Only the momentary push button is controllable by software (labeled
+ * "PB_USER1" on the board):
+ *
+ *   - PE27.  Pressing the switch connect PE27 to grounded.  Therefore, PE27
+ *     must be pulled high internally.  When the button is pressed the SAMA5
+ *     will sense "0" is on PE27.
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/irq.h>
+
+#include <arch/irq.h>
+#include <arch/board/board.h>
+
+#include "sam_pio.h"
+#include "sama5d4-ek.h"
+
+#ifdef CONFIG_ARCH_BUTTONS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#if defined(CONFIG_SAMA5_PIOE_IRQ) && defined(CONFIG_ARCH_IRQBUTTONS)
+static xcpt_t g_irquser1;
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_button_initialize
+ *
+ * Description:
+ *   board_button_initialize() must be called to initialize button resources.  After
+ *   that, board_buttons() may be called to collect the current state of all
+ *   buttons or board_button_irq() may be called to register button interrupt
+ *   handlers.
+ *
+ ****************************************************************************/
+
+void board_button_initialize(void)
+{
+  (void)sam_configpio(PIO_USER1);
+}
+
+/****************************************************************************
+ * Name: board_buttons
+ *
+ * Description:
+ *   After board_button_initialize() has been called, board_buttons() may be called to
+ *   collect the state of all buttons.  board_buttons() returns an 8-bit bit set
+ *   with each bit associated with a button.  See the BUTTON* definitions
+ *   above for the meaning of each bit in the returned value.
+ *
+ ****************************************************************************/
+
+uint8_t board_buttons(void)
+{
+  return sam_pioread(PIO_USER1) ? 0 : BUTTON_USER1_BIT;
+}
+
+/****************************************************************************
+ * Name: board_button_irq
+ *
+ * Description:
+ *   This function may be called to register an interrupt handler that will
+ *   be called when a button is depressed or released.  The ID value is one
+ *   of the BUTTON* definitions provided above. The previous interrupt
+ *   handler address isreturned (so that it may restored, if so desired).
+ *
+ * Configuration Notes:
+ *   Configuration CONFIG_SAMA5_PIO_IRQ must be selected to enable the
+ *   overall PIO IRQ feature and CONFIG_SAMA5_PIOE_IRQ must be enabled to
+ *   select PIOs to support interrupts on PIOE.
+ *
+ ****************************************************************************/
+
+#if defined(CONFIG_SAMA5_PIOE_IRQ) && defined(CONFIG_ARCH_IRQBUTTONS)
+xcpt_t board_button_irq(int id, xcpt_t irqhandler)
+{
+  xcpt_t oldhandler = NULL;
+
+  if (id == BUTTON_USER1)
+    {
+      irqstate_t flags;
+
+      /* Disable interrupts until we are done.  This guarantees that the
+       * following operations are atomic.
+       */
+
+      flags = irqsave();
+
+      /* Get the old button interrupt handler and save the new one */
+
+      oldhandler = g_irquser1;
+      g_irquser1 = irqhandler;
+
+      /* Configure the interrupt */
+
+      sam_pioirq(IRQ_USER1);
+      (void)irq_attach(IRQ_USER1, irqhandler);
+      sam_pioirqenable(IRQ_USER1);
+      irqrestore(flags);
+    }
+
+  /* Return the old button handler (so that it can be restored) */
+
+  return oldhandler;
+}
+#endif
+
+#endif /* CONFIG_ARCH_BUTTONS */

configs/sama5d4-ek/src/sam_can.c

@@ -0,0 +1,140 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/up_can.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/can.h>
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "up_arch.h"
+
+#include "sam_can.h"
+#include "sama5d4-ek.h"
+
+#if defined(CONFIG_CAN) && (defined(CONFIG_SAMA5_CAN0) || defined(CONFIG_SAMA5_CAN1))
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+/* Configuration ********************************************************************/
+
+#if defined(CONFIG_SAMA5_CAN0) && defined(CONFIG_SAMA5_CAN1)
+#  warning "Both CAN0 and CAN1 are enabled.  Assuming only CAN0."
+#  undef CONFIG_SAMA5_CAN1
+#endif
+
+#ifdef CONFIG_SAMA5_CAN0
+#  define CAN_PORT 0
+#else
+#  define CAN_PORT 1
+#endif
+
+/* Debug ***************************************************************************/
+/* Non-standard debug that may be enabled just for testing CAN */
+
+#ifdef CONFIG_DEBUG_CAN
+#  define candbg    dbg
+#  define canvdbg   vdbg
+#  define canlldbg  lldbg
+#  define canllvdbg llvdbg
+#else
+#  define candbg(x...)
+#  define canvdbg(x...)
+#  define canlldbg(x...)
+#  define canllvdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: can_devinit
+ *
+ * Description:
+ *   All STM32 architectures must provide the following interface to work with
+ *   examples/can.
+ *
+ ************************************************************************************/
+
+int can_devinit(void)
+{
+  static bool initialized = false;
+  struct can_dev_s *can;
+  int ret;
+
+  /* Check if we have already initialized */
+
+  if (!initialized)
+    {
+      /* Call stm32_caninitialize() to get an instance of the CAN interface */
+
+      can = sam_caninitialize(CAN_PORT);
+      if (can == NULL)
+        {
+          candbg("ERROR:  Failed to get CAN interface\n");
+          return -ENODEV;
+        }
+
+      /* Register the CAN driver at "/dev/can0" */
+
+      ret = can_register("/dev/can0", can);
+      if (ret < 0)
+        {
+          candbg("ERROR: can_register failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_CAN && (CONFIG_SAMA5_CAN0 || CONFIG_SAMA5_CAN1) */

configs/sama5d4-ek/src/sam_cxxinitialize.c

@@ -0,0 +1,153 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/sam_cxxinitialize.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <nuttx/arch.h>
+
+#include <arch/sama5/chip.h>
+#include "chip.h"
+
+#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Debug ****************************************************************************/
+/* Non-standard debug that may be enabled just for testing the static constructors */
+
+#ifndef CONFIG_DEBUG
+#  undef CONFIG_DEBUG_CXX
+#endif
+
+#ifdef CONFIG_DEBUG_CXX
+#  define cxxdbg              dbg
+#  define cxxlldbg            lldbg
+#  ifdef CONFIG_DEBUG_VERBOSE
+#    define cxxvdbg           vdbg
+#    define cxxllvdbg         llvdbg
+#  else
+#    define cxxvdbg(x...)
+#    define cxxllvdbg(x...)
+#  endif
+#else
+#  define cxxdbg(x...)
+#  define cxxlldbg(x...)
+#  define cxxvdbg(x...)
+#  define cxxllvdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Types
+ ************************************************************************************/
+/* This type defines one entry in initialization array */
+
+typedef void (*initializer_t)(void);
+
+/************************************************************************************
+ * External references
+ ************************************************************************************/
+/* _sinit and _einit are symbols exported by the linker script that mark the
+ * beginning and the end of the C++ initialization section.
+ */
+
+extern initializer_t _sinit;
+extern initializer_t _einit;
+
+/* _stext and _etext are symbols exported by the linker script that mark the
+ * beginning and the end of text.
+ */
+
+extern uint32_t _stext;
+extern uint32_t _etext;
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/****************************************************************************
+ * Name: up_cxxinitialize
+ *
+ * Description:
+ *   If C++ and C++ static constructors are supported, then this function
+ *   must be provided by board-specific logic in order to perform
+ *   initialization of the static C++ class instances.
+ *
+ *   This function should then be called in the application-specific
+ *   user_start logic in order to perform the C++ initialization.  NOTE
+ *   that no component of the core NuttX RTOS logic is involved; This
+ *   function defintion only provides the 'contract' between application
+ *   specific C++ code and platform-specific toolchain support
+ *
+ ***************************************************************************/
+
+void up_cxxinitialize(void)
+{
+  initializer_t *initp;
+
+  cxxdbg("_sinit: %p _einit: %p _stext: %p _etext: %p\n",
+         &_sinit, &_einit, &_stext, &_etext);
+
+  /* Visit each entry in the initialzation table */
+
+  for (initp = &_sinit; initp != &_einit; initp++)
+    {
+      initializer_t initializer = *initp;
+      cxxdbg("initp: %p initializer: %p\n", initp, initializer);
+
+      /* Make sure that the address is non-NULL and lies in the text region
+       * defined by the linker script.  Some toolchains may put NULL values
+       * or counts in the initialization table
+       */
+
+      if ((void*)initializer > (void*)&_stext && (void*)initializer < (void*)&_etext)
+        {
+          cxxdbg("Calling %p\n", initializer);
+          initializer();
+        }
+    }
+}
+
+#endif /* CONFIG_HAVE_CXX && CONFIG_HAVE_CXXINITIALIZE */

configs/sama5d4-ek/src/sam_ethernet.c

@@ -0,0 +1,186 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/sam_ethernet.c
+ *
+ *   Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/irq.h>
+
+#include "sam_pio.h"
+#include "sam_ethernet.h"
+
+#ifdef HAVE_NETWORK
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+#ifdef CONFIG_SAMA5_PIOE_IRQ
+#ifdef CONFIG_SAMA5_EMAC0
+static xcpt g_emac_handler;
+#endif
+#ifdef CONFIG_SAMA5_GMAC
+static xcpt g_gmac_handler;
+#endif
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: sam_netinitialize
+ *
+ * Description:
+ *   Configure board resources to support networking.
+ *
+ ************************************************************************************/
+
+void weak_function sam_netinitialize(void)
+{
+#ifdef CONFIG_SAMA4_EMAC
+  /* Ethernet 10/100 (EMAC) Port
+   *
+   * The main board contains a MICREL PHY device (KSZ8051) operating at 10/100 Mbps.
+   * The board supports MII and RMII interface modes.
+   *
+   * The two independent PHY devices embedded on CM and MB boards are connected to
+   * independent RJ-45 connectors with built-in magnetic and status LEDs.
+   *
+   * At the De-Assertion of Reset:
+   *   PHY ADD[2:0]:001
+   *   CONFIG[2:0]:001,Mode:RMII
+   *   Duplex Mode:Half Duplex
+   *   Isolate Mode:Disable
+   *   Speed Mode:100Mbps
+   *   Nway Auto-Negotiation:Enable
+   *
+   * The KSZ8051 PHY interrtup is available on PE30 INT_ETH1
+  */
+
+  sam_configpio(PIO_INT_ETH1);
+#endif
+
+#ifdef CONFIG_SAMA4_GMAC
+  /* Tri-Speed Ethernet PHY
+   *
+   * The SAMA5D4-EK  board is equipped with a MICREL PHY devices (MICREL
+   * KSZ9021/31) operating at 10/100/1000 Mbps. The board supports RGMII interface
+   * mode. The Ethernet interface consists of 4 pairs of low voltage differential
+   * pair signals designated from GRX± and GTx± plus control signals for link
+   * activity indicators. These signals can be used to connect to a 10/100/1000
+   * BaseT RJ45 connector integrated on the main board.
+   *
+   * The KSZ9021/31 interrupt is available on PB35 INT_GETH0
+   */
+
+  sam_configpio(PIO_INT_ETH0);
+#endif
+}
+
+/************************************************************************************
+ * Name: sam_phyirq
+ *
+ * Description:
+ *   This function may be called to register an interrupt handler that will be
+ *   called when an interrupt is received from a PHY.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_SAMA5_PIOE_IRQ
+xcpt_t sam_phyirq(int intf, xcpt_t irqhandler)
+{
+  irqstate_t flags;
+  xcpt_t *handler;
+  xcpt_t oldhandler;
+  int irq;
+
+#ifdef CONFIG_SAMA5_EMAC0
+  if (intf == EMAC_INTF)
+    {
+      handler = &g_emac_handler;
+      irq     = IRQ_INT_ETH1;
+    }
+  else
+#endif
+#ifdef CONFIG_SAMA5_GMAC
+  if (intf == GMAC_INTF)
+    {
+      handler = &g_gmac_handler;
+      irq     = IRQ_INT_ETH0;
+    }
+  else
+#endif
+    {
+      ndbg("Unsupported interface: %d\n", intf);
+      return NULL;
+    }
+
+  /* Disable interrupts until we are done.  This guarantees that the
+   * following operations are atomic.
+   */
+
+  flags = irqsave();
+
+  /* Get the old button interrupt handler and save the new one */
+
+  oldhandler = *handler;
+  *handler = irqhandler;
+
+  /* Configure the interrupt */
+
+  sam_pioirq(irq);
+  (void)irq_attach(irq, irqhandler);
+  sam_pioirqenable(irq);
+
+  /* Return the old button handler (so that it can be restored) */
+
+  irqrestore(flags);
+  return oldhandler;
+}
+#endif /* CONFIG_SAMA5_PIOE_IRQ */
+
+#endif /* HAVE_NETWORK */

configs/sama5d4-ek/src/sam_hsmci.c

@@ -0,0 +1,344 @@
+/****************************************************************************
+ * config/sama5d4-ek/src/sam_hsmci.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+/* The SAMA4D4-EK provides a two SD memory card slots:  (1) a full size SD card
+ * slot (J10), and (2) a microSD memory card slot (J11).
+ *
+ * The full size SD card slot connects via HSMCI0.  The card detect discrete
+ * is available on PB17 (pulled high).  The write protect descrete is tied to
+ * ground (via PP6) and not available to software.  The slot supports 8-bit
+ * wide transfer mode, but the NuttX driver currently uses only the 4-bit
+ * wide transfer mode
+ *
+ *   PD17 MCI0_CD
+ *   PD1  MCI0_DA0
+ *   PD2  MCI0_DA1
+ *   PD3  MCI0_DA2
+ *   PD4  MCI0_DA3
+ *   PD5  MCI0_DA4
+ *   PD6  MCI0_DA5
+ *   PD7  MCI0_DA6
+ *   PD8  MCI0_DA7
+ *   PD9  MCI0_CK
+ *   PD0  MCI0_CDA
+ *
+ * The microSD connects vi HSMCI1.  The card detect discrete is available on
+ * PB18 (pulled high):
+ *
+ *   PD18  MCI1_CD
+ *   PB20  MCI1_DA0
+ *   PB21  MCI1_DA1
+ *   PB22  MCI1_DA2
+ *   PB23  MCI1_DA3
+ *   PB24  MCI1_CK
+ *   PB19  MCI1_CDA
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/sdio.h>
+#include <nuttx/mmcsd.h>
+
+#include "sam_pio.h"
+#include "sam_hsmci.h"
+
+#include "sama5d4-ek.h"
+
+#ifdef HAVE_HSMCI
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+/* This structure holds static information unique to one HSMCI peripheral */
+
+struct sam_hsmci_state_s
+{
+  struct sdio_dev_s *hsmci;   /* R/W device handle */
+  pio_pinset_t pincfg;        /* Card detect PIO pin configuratin */
+  uint8_t irq;                /* Interrupt number (same as pid) */
+  uint8_t slotno;             /* Slot number */
+  bool cd;                    /* TRUE: card is inserted */
+  xcpt_t handler;             /* Interrupt handler */
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* HSCMI device state */
+
+#ifdef CONFIG_SAMA5_HSMCI0
+static int sam_hsmci0_cardetect(int irq, void *regs);
+
+static struct sam_hsmci_state_s g_hsmci0 =
+{
+  .pincfg  = PIO_MCI0_CD,
+  .irq     = IRQ_MCI0_CD,
+  .slotno  = 0,
+  .handler = sam_hsmci0_cardetect,
+};
+#endif
+
+#ifdef CONFIG_SAMA5_HSMCI1
+static int sam_hsmci1_cardetect(int irq, void *regs);
+
+static struct sam_hsmci_state_s g_hsmci1 =
+{
+  .pincfg  = PIO_MCI1_CD,
+  .irq     = IRQ_MCI1_CD,
+  .slotno  = 1,
+  .handler = sam_hsmci1_cardetect,
+};
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_cardinserted_internal
+ *
+ * Description:
+ *   Check if a card is inserted into the selected HSMCI slot
+ *
+ ****************************************************************************/
+
+bool sam_cardinserted_internal(struct sam_hsmci_state_s *state)
+{
+  bool inserted;
+
+  /* Get the state of the PIO pin */
+
+  inserted = sam_pioread(state->pincfg);
+  fllvdbg("Slot %d inserted: %s\n", state->slotno, inserted ? "NO" : "YES");
+  return !inserted;
+}
+
+/****************************************************************************
+ * Name: sam_hsmci_cardetect, sam_hsmci0_cardetect, and sam_hsmci1_cardetect
+ *
+ * Description:
+ *   Card detect interrupt handlers
+ *
+ ****************************************************************************/
+
+static int sam_hsmci_cardetect(struct sam_hsmci_state_s *state)
+{
+  /* Get the current card insertion state */
+
+  bool cd = sam_cardinserted_internal(state);
+
+  /* Has the card detect state changed? */
+
+  if (cd != state->cd)
+    {
+      /* Yes... remember that new state and inform the HSMCI driver */
+
+      state->cd = cd;
+
+      /* Report the new state to the SDIO driver */
+
+      sdio_mediachange(state->hsmci, cd);
+    }
+
+   return OK;
+}
+
+#ifdef CONFIG_SAMA5_HSMCI0
+static int sam_hsmci0_cardetect(int irq, void *regs)
+{
+  return sam_hsmci_cardetect(&g_hsmci0);
+}
+#endif
+
+#ifdef CONFIG_SAMA5_HSMCI1
+static int sam_hsmci1_cardetect(int irq, void *regs)
+{
+  return sam_hsmci_cardetect(&g_hsmci1);
+}
+#endif
+
+/****************************************************************************
+ * Name: sam_hsmci_state
+ *
+ * Description:
+ *   Initialize HSMCI PIOs.
+ *
+ ****************************************************************************/
+
+static struct sam_hsmci_state_s *sam_hsmci_state(int slotno)
+{
+  struct sam_hsmci_state_s *state = NULL;
+
+#ifdef CONFIG_SAMA5_HSMCI0
+#ifdef CONFIG_SAMA5_HSMCI1
+  if (slotno == 0)
+#endif
+    {
+      state = &g_hsmci0;
+    }
+#ifdef CONFIG_SAMA5_HSMCI1
+  else
+#endif
+#endif
+
+#ifdef CONFIG_SAMA5_HSMCI1
+    {
+      state = &g_hsmci1;
+    }
+#endif
+
+  return state;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_hsmci_initialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int sam_hsmci_initialize(int slotno, int minor)
+{
+  struct sam_hsmci_state_s *state;
+  int ret;
+
+  /* Get the static HSMI description */
+
+  state = sam_hsmci_state(slotno);
+  if (!state)
+    {
+      fdbg("No state for slotno %d\n", slotno);
+      return -EINVAL;
+    }
+
+  /* Initialize card-detect and write-protect PIOs */
+
+  sam_configpio(state->pincfg);
+
+  /* Mount the SDIO-based MMC/SD block driver */
+  /* First, get an instance of the SDIO interface */
+
+  state->hsmci = sdio_initialize(slotno);
+  if (!state->hsmci)
+    {
+      fdbg("Failed to initialize SDIO slot %d\n",  slotno);
+      return -ENODEV;
+    }
+
+  /* Now bind the SDIO interface to the MMC/SD driver */
+
+  ret = mmcsd_slotinitialize(minor, state->hsmci);
+  if (ret != OK)
+    {
+      fdbg("Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
+      return ret;
+    }
+
+  /* Configure card detect interrupts */
+
+  sam_pioirq(state->pincfg);
+  (void)irq_attach(state->irq, state->handler);
+
+  /* Then inform the HSMCI driver if there is or is not a card in the slot. */
+
+  state->cd = sam_cardinserted_internal(state);
+  sdio_mediachange(state->hsmci, state->cd);
+
+  /* Enable card detect interrupts */
+
+  sam_pioirqenable(state->irq);
+  return OK;
+}
+
+/****************************************************************************
+ * Name: sam_cardinserted
+ *
+ * Description:
+ *   Check if a card is inserted into the selected HSMCI slot
+ *
+ ****************************************************************************/
+
+bool sam_cardinserted(int slotno)
+{
+  struct sam_hsmci_state_s *state;
+
+  /* Get the HSMI description */
+
+  state = sam_hsmci_state(slotno);
+  if (!state)
+    {
+      fdbg("No state for slotno %d\n", slotno);
+      return false;
+    }
+
+  /* Return the state of the PIO pin */
+
+  return sam_cardinserted_internal(state);
+}
+
+/****************************************************************************
+ * Name: sam_writeprotected
+ *
+ * Description:
+ *   Check if a card is inserted into the selected HSMCI slot
+ *
+ ****************************************************************************/
+
+bool sam_writeprotected(int slotno)
+{
+  /* There are no write protect pins */
+
+  return false;
+}
+
+#endif /* HAVE_HSMCI */

configs/sama5d4-ek/src/sam_nandflash.c

@@ -0,0 +1,231 @@
+/****************************************************************************
+ * configs/sama5d4-ek/src/sam_nandflash.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Most of this file derives from Atmel sample code for the SAMA4D4-EK
+ * board.  That sample code has licensing that is compatible with the NuttX
+ * modified BSD license:
+ *
+ *   Copyright (c) 2012, Atmel Corporation
+ *   All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor Atmel nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/mount.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/mtd/mtd.h>
+#include <nuttx/fs/nxffs.h>
+
+#include "up_arch.h"
+#include "sam_periphclks.h"
+#include "sam_pio.h"
+#include "sam_nand.h"
+#include "chip/sam_hsmc.h"
+#include "chip/sam_pinmap.h"
+
+#include "sama5d4-ek.h"
+
+#ifdef CONFIG_SAMA5_EBICS3_NAND
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_nandflash_config
+ *
+ * Description:
+ *   If CONFIG_SAMA5_EBICS3_NAND is defined, then NAND FLASH support is
+ *   enabled.  This function provides the board-specific implementation of
+ *   the logic to reprogram the SMC to support NAND FLASH on the specified
+ *   CS.
+ *
+ * Input Parameters:
+ *   cs - Chip select number (in the event that multiple NAND devices
+ *        are connected on-board).
+ *
+ * Returned Values:
+ *   OK if the HSMC was successfully configured for this CS.  A negated
+ *   errno value is returned on a failure.  This would fail with -ENODEV,
+ *   for example, if the board does not support NAND FLASH on the requested
+ *   CS.
+ *
+ ****************************************************************************/
+
+int board_nandflash_config(int cs)
+{
+  uint32_t regval;
+
+  /* The Embest and Ronetix CM boards and one Hynix NAND HY27UF(08/16)2G2B
+   * Series NAND (MT29F2G08ABAEAWP).  This part has a capacity of 256Mx8bit
+   * () with spare 8Mx8 bit capacity. The device contains 2048 blocks, composed
+   * by 64 x 2112 byte pages.  The effective size is approximately 256MiB.
+   *
+   * NAND is available on CS3.
+   */
+
+  if (cs == HSMC_CS3)
+    {
+      /* Make sure that the SMC peripheral is enabled. */
+
+      sam_hsmc_enableclk();
+
+      /* Configure the SMC */
+
+      regval = HSMC_SETUP_NWE_SETUP(1) |  HSMC_SETUP_NCS_WRSETUP(1) |
+               HSMC_SETUP_NRD_SETUP(2) | HSMC_SETUP_NCS_RDSETUP(1);
+      putreg32(regval, SAM_HSMC_SETUP(HSMC_CS3));
+
+      regval = HSMC_PULSE_NWE_PULSE(5) | HSMC_PULSE_NCS_WRPULSE(7) |
+               HSMC_PULSE_NRD_PULSE(5) | HSMC_PULSE_NCS_RDPULSE(7);
+      putreg32(regval, SAM_HSMC_PULSE(HSMC_CS3));
+
+      regval = HSMC_CYCLE_NWE_CYCLE(8) | HSMC_CYCLE_NRD_CYCLE(9);
+      putreg32(regval, SAM_HSMC_CYCLE(HSMC_CS3));
+
+      regval = HSMC_TIMINGS_TCLR(3) | HSMC_TIMINGS_TADL(10) |
+               HSMC_TIMINGS_TAR(3) | HSMC_TIMINGS_TRR(4) |
+               HSMC_TIMINGS_TWB(5) | HSMC_TIMINGS_RBNSEL(3) |
+               HSMC_TIMINGS_NFSEL;
+      putreg32(regval, SAM_HSMC_TIMINGS(HSMC_CS3));
+
+      regval = HSMC_MODE_READMODE | HSMC_MODE_WRITEMODE |
+               HSMC_MODE_BIT_8 | HSMC_MODE_TDFCYCLES(1);
+      putreg32(regval, SAM_HSMC_MODE(HSMC_CS3));
+
+      /* Configure NAND PIO pins
+       *
+       * NAND Interface:
+       *
+       *   NCS3/NANDCE - Dedicated pin; no configuration needed
+       *   NANDCLE     - PE21
+       *   NANDALE     - PE22
+       *   NRD/NANDOE  - Dedicated pin; no configuration needed
+       *   NWE/NANDWE  - Dedicated pin; no configuration needed
+       *   NANDRDY     - Dedicated pin; no configuration needed
+       *   M_EBI_D0-7  - Dedicated pins; no configuration needed
+       */
+
+      sam_configpio(PIO_HSMC_NANDALE);
+      sam_configpio(PIO_HSMC_NANDCLE);
+
+      return OK;
+    }
+
+  return -ENODEV;
+}
+
+/****************************************************************************
+ * Name: sam_nand_automount
+ *
+ * Description:
+ *   Initialize and configure the NAND on CS3
+ *
+ ****************************************************************************/
+
+#ifdef HAVE_NAND
+int sam_nand_automount(int minor)
+{
+  FAR struct mtd_dev_s *mtd;
+  static bool initialized = false;
+  int ret;
+
+  /* Have we already initialized? */
+
+  if (!initialized)
+    {
+      /* Create and initialize an NAND MATD device */
+
+      mtd = sam_nand_initialize(HSMC_CS3);
+      if (!mtd)
+        {
+          fdbg("ERROR: Failed to create the NAND driver on CS%d\n", HSMC_CS3);
+          return -ENODEV;
+        }
+
+#if defined(CONFIG_SAMA5D4EK_NAND_FTL)
+      /* Use the FTL layer to wrap the MTD driver as a block driver */
+
+      ret = ftl_initialize(NAND_MINOR, mtd);
+      if (ret < 0)
+        {
+          fdbg("ERROR: Failed to initialize the FTL layer: %d\n", ret);
+          return ret;
+        }
+
+#elif defined(CONFIG_SAMA5D4EK_NAND_NXFFS)
+      /* Initialize to provide NXFFS on the MTD interface */
+
+      ret = nxffs_initialize(mtd);
+      if (ret < 0)
+        {
+          fdbg("ERROR: NXFFS initialization failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Mount the file system at /mnt/nand */
+
+      ret = mount(NULL, "/mnt/nand", "nxffs", 0, NULL);
+      if (ret < 0)
+        {
+          fdbg("ERROR: Failed to mount the NXFFS volume: %d\n", errno);
+          return ret;
+        }
+#endif
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+}
+#endif
+
+#endif /* CONFIG_SAMA5_EBICS3_NAND */

configs/sama5d4-ek/src/sam_nsh.c

@@ -0,0 +1,166 @@
+/****************************************************************************
+ * config/sama5d4-ek/src/sam_nsh.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/mount.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <errno.h>
+#include <debug.h>
+
+#ifdef CONFIG_SYSTEM_USBMONITOR
+#  include <apps/usbmonitor.h>
+#endif
+
+#include "sama5d4-ek.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) syslog(__VA_ARGS__)
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message syslog
+#  else
+#    define message printf
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+#if defined(HAVE_NAND) || defined(HAVE_AT25) || defined(HAVE_HSMCI) || \
+    defined(HAVE_USBHOST) || defined(HAVE_USBMONITOR)
+  int ret;
+#endif
+
+#ifdef HAVE_NAND
+  /* Initialize the NAND driver */
+
+  ret = sam_nand_automount(NAND_MINOR);
+  if (ret < 0)
+    {
+      message("ERROR: sam_nand_automount failed: %d\n", ret);
+      return ret;
+    }
+#endif
+
+#ifdef HAVE_AT25
+  /* Initialize the AT25 driver */
+
+  ret = sam_at25_automount(AT25_MINOR);
+  if (ret < 0)
+    {
+      message("ERROR: sam_at25_automount failed: %d\n", ret);
+      return ret;
+    }
+#endif
+
+#ifdef HAVE_HSMCI
+#ifdef CONFIG_SAMA5_HSMCI0
+  /* Initialize the HSMCI0 driver */
+
+  ret = sam_hsmci_initialize(HSMCI0_SLOTNO, HSMCI0_MINOR);
+  if (ret < 0)
+    {
+      message("ERROR: sam_hsmci_initialize(%d,%d) failed: %d\n",
+              HSMCI0_SLOTNO, HSMCI0_MINOR, ret);
+      return ret;
+    }
+#endif
+
+#ifdef CONFIG_SAMA5_HSMCI1
+  /* Initialize the HSMCI1 driver */
+
+  ret = sam_hsmci_initialize(HSMCI1_SLOTNO, HSMCI1_MINOR);
+  if (ret < 0)
+    {
+      message("ERROR: sam_hsmci_initialize(%d,%d) failed: %d\n",
+              HSMCI1_SLOTNO, HSMCI1_MINOR, ret);
+      return ret;
+    }
+#endif
+#endif
+
+#ifdef HAVE_USBHOST
+  /* Initialize USB host operation.  sam_usbhost_initialize() starts a thread
+   * will monitor for USB connection and disconnection events.
+   */
+
+  ret = sam_usbhost_initialize();
+  if (ret != OK)
+    {
+      message("ERROR: Failed to initialize USB host: %d\n", ret);
+      return ret;
+    }
+#endif
+
+#ifdef HAVE_USBMONITOR
+  /* Start the USB Monitor */
+
+  ret = usbmonitor_start(0, NULL);
+  if (ret != OK)
+    {
+      message("nsh_archinitialize: Start USB monitor: %d\n", ret);
+    }
+#endif
+
+  return OK;
+}

configs/sama5d4-ek/src/sam_ostest.c

@@ -0,0 +1,113 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/sam_ostest.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <debug.h>
+
+#include <arch/irq.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+#include "sama5d4-ek.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Configuration ********************************************************************/
+
+#undef HAVE_FPU
+#if defined(CONFIG_ARCH_FPU) && !defined(CONFIG_EXAMPLES_OSTEST_FPUTESTDISABLE) && \
+    defined(CONFIG_EXAMPLES_OSTEST_FPUSIZE) && defined(CONFIG_SCHED_WAITPID) && \
+    !defined(CONFIG_DISABLE_SIGNALS)
+#    define HAVE_FPU 1
+#endif
+
+#ifdef HAVE_FPU
+
+#if CONFIG_EXAMPLES_OSTEST_FPUSIZE != (4*FPU_CONTEXT_REGS)
+#  error "CONFIG_EXAMPLES_OSTEST_FPUSIZE has the wrong size"
+#endif
+
+/************************************************************************************
+ * Private Data
+ ************************************************************************************/
+
+static uint32_t g_saveregs[XCPTCONTEXT_REGS];
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+/* Given an array of size CONFIG_EXAMPLES_OSTEST_FPUSIZE, this function will return
+ * the current FPU registers.
+ */
+
+void arch_getfpu(FAR uint32_t *fpusave)
+{
+  irqstate_t flags;
+
+  /* Take a snapshot of the thread context right now */
+
+  flags = irqsave();
+  up_saveusercontext(g_saveregs);
+
+  /* Return only the floating register values */
+
+  memcpy(fpusave, &g_saveregs[REG_S0], (4*FPU_CONTEXT_REGS));
+  irqrestore(flags);
+}
+
+/* Given two arrays of size CONFIG_EXAMPLES_OSTEST_FPUSIZE this function
+ * will compare them and return true if they are identical.
+ */
+
+bool arch_cmpfpu(FAR const uint32_t *fpusave1, FAR const uint32_t *fpusave2)
+{
+  return memcmp(fpusave1, fpusave2, (4*FPU_CONTEXT_REGS)) == 0;
+}
+
+#endif /* HAVE_FPU */

configs/sama5d4-ek/src/sam_pwm.c

@@ -0,0 +1,161 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/sam_pwm.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/pwm.h>
+#include <arch/board/board.h>
+
+#include "sam_pwm.h"
+#include "sama5d4-ek.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+/* Configuration ********************************************************************/
+/* PWM.  There are no dedicated PWM output pins available to the user for PWM
+ * testing.  Care must be taken because all PWM output pins conflict with some other
+ * usage of the pin by other devices:
+ *
+ *    -----+---+---+----+--------------------
+ *     PWM  PIN PER PIO  CONFLICTS
+ *    -----+---+---+----+--------------------
+ *     PWM0 FI   B  PC28   SPI1, ISI
+ *          H    B  PB0    GMAC
+ *               B  PA20   LCDC, ISI
+ *          L    B  PB1    GMAC
+ *               B  PA21   LCDC, ISI
+ *    -----+---+---+----+--------------------
+ *     PWM1 FI   B  PC31   HDMI
+ *          H    B  PB4    GMAC
+ *               B  PA22   LCDC, ISI
+ *          L    B  PB5    GMAC
+ *               B  PE31   ISI, HDMI
+ *               B  PA23   LCDC, ISI
+ *    -----+---+---+----+--------------------
+ *     PWM2 FI   B  PC29   UART0, ISI, HDMI
+ *          H    C  PD5    HSMCI0
+ *               B  PB8    GMAC
+ *          L    C  PD6    HSMCI0
+ *               B  PB9    GMAC
+ *    -----+---+---+----+--------------------
+ *     PWM3 FI   C  PD16   SPI0, Audio
+ *          H    C  PD7    HSMCI0
+ *               B  PB12   GMAC
+ *          L    C  PD8    HSMCI0
+ *               B  PB13   GMAC
+ *    -----+---+---+----+--------------------
+ */
+
+#ifndef CONFIG_SAMA5D4EK_CHANNEL
+#  if defined(CONFIG_SAMA5_PWM_CHAN0)
+#    warning Assuming PWM channel 0
+#    define CONFIG_SAMA5D4EK_CHANNEL 0
+#  elif defined(CONFIG_SAMA5_PWM_CHAN1)
+#    warning Assuming PWM channel 1
+#    define CONFIG_SAMA5D4EK_CHANNEL 1
+#  elif defined(CONFIG_SAMA5_PWM_CHAN2)
+#    warning Assuming PWM channel 2
+#    define CONFIG_SAMA5D4EK_CHANNEL 2
+#  elif defined(CONFIG_SAMA5_PWM_CHAN3)
+#    warning Assuming PWM channel 3
+#    define CONFIG_SAMA5D4EK_CHANNEL 3
+#  endif
+#endif
+
+#if defined(CONFIG_PWM) && defined(CONFIG_SAMA5_PWM)
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: pwm_devinit
+ *
+ * Description:
+ *   All SAMA5 architectures must provide the following interface to work with
+ *   examples/pwm.
+ *
+ ************************************************************************************/
+
+int pwm_devinit(void)
+{
+  static bool initialized = false;
+  struct pwm_lowerhalf_s *pwm;
+  int ret;
+
+  /* Have we already initialized? */
+
+  if (!initialized)
+    {
+      /* Call sam_pwminitialize() to get an instance of the PWM interface */
+
+      pwm = sam_pwminitialize(CONFIG_SAMA5D4EK_CHANNEL);
+      if (!pwm)
+        {
+          dbg("Failed to get the SAMA5 PWM lower half\n");
+          return -ENODEV;
+        }
+
+      /* Register the PWM driver at "/dev/pwm0" */
+
+      ret = pwm_register("/dev/pwm0", pwm);
+      if (ret < 0)
+        {
+          adbg("pwm_register failed: %d\n", ret);
+          return ret;
+        }
+
+      /* Now we are initialized */
+
+      initialized = true;
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_PWM */

configs/sama5d4-ek/src/sam_spi.c

@@ -0,0 +1,216 @@
+/************************************************************************************
+ * configs/sama5d4-ek/src/up_spi.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/spi/spi.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "sam_pio.h"
+#include "sam_spi.h"
+#include "sama5d4-ek.h"
+
+#if defined(CONFIG_SAMA5_SPI0) || defined(CONFIG_SAMA5_SPI1)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG too) */
+
+#undef SPI_DEBUG   /* Define to enable debug */
+#undef SPI_VERBOSE /* Define to enable verbose debug */
+
+#ifdef SPI_DEBUG
+#  define spidbg  lldbg
+#  ifdef SPI_VERBOSE
+#    define spivdbg lldbg
+#  else
+#    define spivdbg(x...)
+#  endif
+#else
+#  undef SPI_VERBOSE
+#  define spidbg(x...)
+#  define spivdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: sam_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select PIO pins for the SAMA4D4-EK board.
+ *
+ ************************************************************************************/
+
+void weak_function sam_spiinitialize(void)
+{
+#ifdef CONFIG_SAMA5_SPI0
+#ifdef CONFIG_MTD_AT25
+  /* The AT25 serial FLASH connects using NPCS0 */
+
+   sam_configpio(PIO_AT25_NPCS0);
+#endif
+#endif
+
+#ifdef CONFIG_SAMA5_SPI1
+#endif
+}
+
+/****************************************************************************
+ * Name:  sam_spi[0|1]select, sam_spi[0|1]status, and sam_spi[0|1]cmddata
+ *
+ * Description:
+ *   These external functions must be provided by board-specific logic.  They
+ *   include:
+ *
+ *   o sam_spi[0|1]select is a functions tomanage the board-specific chip selects
+ *   o sam_spi[0|1]status and sam_spi[0|1]cmddata:  Implementations of the status
+ *     and cmddata methods of the SPI interface defined by struct spi_ops_
+ *     (see include/nuttx/spi/spi.h). All other methods including
+ *     up_spiinitialize()) are provided by common SAM3/4 logic.
+ *
+ *  To use this common SPI logic on your board:
+ *
+ *   1. Provide logic in sam_boardinitialize() to configure SPI chip select
+ *      pins.
+ *   2. Provide sam_spi[0|1]select() and sam_spi[0|1]status() functions in your board-
+ *      specific logic.  These functions will perform chip selection and
+ *      status operations using PIOs in the way your board is configured.
+ *   2. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
+ *      sam_spi[0|1]cmddata() functions in your board-specific logic.  This
+ *      function will perform cmd/data selection operations using PIOs in
+ *      the way your board is configured.
+ *   3. Add a call to up_spiinitialize() in your low level application
+ *      initialization logic
+ *   4. The handle returned by up_spiinitialize() may then be used to bind the
+ *      SPI driver to higher level logic (e.g., calling
+ *      mmcsd_spislotinitialize(), for example, will bind the SPI driver to
+ *      the SPI MMC/SD driver).
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_spi[0|1]select
+ *
+ * Description:
+ *   PIO chip select pins may be programmed by the board specific logic in
+ *   one of two different ways.  First, the pins may be programmed as SPI
+ *   peripherals.  In that case, the pins are completely controlled by the
+ *   SPI driver.  This method still needs to be provided, but it may be only
+ *   a stub.
+ *
+ *   An alternative way to program the PIO chip select pins is as a normal
+ *   PIO output.  In that case, the automatic control of the CS pins is
+ *   bypassed and this function must provide control of the chip select.
+ *   NOTE:  In this case, the PIO output pin does *not* have to be the
+ *   same as the NPCS pin normal associated with the chip select number.
+ *
+ * Input Parameters:
+ *   devid - Identifies the (logical) device
+ *   selected - TRUE:Select the device, FALSE:De-select the device
+ *
+ * Returned Values:
+ *   None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SAMA5_SPI0
+void sam_spi0select(enum spi_dev_e devid, bool selected)
+{
+#ifdef CONFIG_MTD_AT25
+  /* The AT25 serial FLASH connects using NPCS0 */
+
+  if (devid == SPIDEV_FLASH)
+    {
+      sam_piowrite(PIO_AT25_NPCS0, !selected);
+    }
+#endif
+}
+#endif
+
+#ifdef CONFIG_SAMA5_SPI1
+void sam_spi1select(enum spi_dev_e devid, bool selected)
+{
+}
+#endif
+
+/****************************************************************************
+ * Name: sam_spi[0|1]status
+ *
+ * Description:
+ *   Return status information associated with the SPI device.
+ *
+ * Input Parameters:
+ *   devid - Identifies the (logical) device
+ *
+ * Returned Values:
+ *   Bit-encoded SPI status (see include/nuttx/spi/spi.h.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SAMA5_SPI0
+uint8_t sam_spi0status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return 0;
+}
+#endif
+
+#ifdef CONFIG_SAMA5_SPI0
+uint8_t sam_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return 0;
+}
+#endif
+
+#endif /* CONFIG_SAMA5_SPI0 || CONFIG_SAMA5_SPI1 */

configs/sama5d4-ek/src/sam_usbmsc.c

@@ -0,0 +1,125 @@
+/****************************************************************************
+ * configs/sama5d4-ek/src/up_usbmsc.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Configure and register the SAM3U MMC/SD SDIO block driver.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include "sama5d4-ek.h"
+
+#ifdef CONFIG_USBMSC
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef HAVE_AT25
+#  error AT25 Serial FLASH not supported
+#endif
+
+#ifndef CONFIG_SAMA5D4EK_AT25_FTL
+#  error AT25 FTL support required (CONFIG_SAMA5D4EK_AT25_FTL)
+#  undef HAVE_AT25
+#endif
+
+#ifndef CONFIG_SYSTEM_USBMSC_DEVMINOR1
+#  define CONFIG_SYSTEM_USBMSC_DEVMINOR1 0
+#endif
+
+#if CONFIG_SYSTEM_USBMSC_DEVMINOR1 != AT25_MINOR
+#  error Confusion in the assignment of minor device numbers
+#  undef HAVE_AT25
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lowsyslog(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lowsyslog
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: usbmsc_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int usbmsc_archinitialize(void)
+{
+  /* Initialize the AT25 MTD driver */
+
+#ifdef HAVE_AT25
+  int ret = sam_at25_automount(AT25_MINOR);
+  if (ret < 0)
+    {
+      message("ERROR: sam_at25_automount failed: %d\n", ret);
+    }
+
+  return ret;
+#else
+  return -ENODEV;
+#endif
+}
+
+#endif /* CONFIG_USBMSC */

configs/sama5d4-ek/src/sam_userleds.c

@@ -0,0 +1,162 @@
+/****************************************************************************
+ * configs/sama5d4-ek/src/sam_userleds.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
+ * by software.  A  blue LED is controlled via PIO pins.  A red LED normally
+ * provides an indication that power is supplied to the board but can also
+ * be controlled via software.
+ *
+ *   PE25.  This blue LED is pulled high and is illuminated by pulling PE25
+ *   low.
+ *
+ *   PE24.  The red LED is also pulled high but is driven by a transistor so
+ *   that it is illuminated when power is applied even if PE24 is not
+ *   configured as an output.  If PE24 is configured as an output, then the
+ *   LCD is illuminated by a low output.
+ */
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "sam_pio.h"
+#include "sama5d4-ek.h"
+
+#ifndef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
+ * with CONFIG_DEBUG_VERBOSE too)
+ */
+
+#ifdef CONFIG_DEBUG_LEDS
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Protototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_ledinit
+ ****************************************************************************/
+
+void sam_ledinit(void)
+{
+  /* Configure LED PIOs for output */
+
+  sam_configpio(PIO_BLUE);
+  sam_configpio(PIO_RED);
+}
+
+/****************************************************************************
+ * Name: sam_setled
+ ****************************************************************************/
+
+void sam_setled(int led, bool ledon)
+{
+  uint32_t ledcfg;
+
+  if (led == BOARD_BLUE)
+    {
+      /* Low illuminates */
+
+      ledcfg = PIO_BLUE;
+      ledon  = !ledon;
+    }
+  else if (led == BOARD_RED)
+    {
+      /* High illuminates */
+
+      ledcfg = PIO_RED;
+    }
+  else
+    {
+      return;
+    }
+
+  sam_piowrite(ledcfg, ledon);
+}
+
+/****************************************************************************
+ * Name: sam_setleds
+ ****************************************************************************/
+
+void sam_setleds(uint8_t ledset)
+{
+  bool ledon;
+
+  /* Low illuminates */
+
+  ledon = ((ledset & BOARD_BLUE_BIT) == 0);
+  sam_piowrite(PIO_BLUE, ledon);
+
+  /* High illuminates */
+
+  ledon = ((ledset & BOARD_RED_BIT) != 0);
+  sam_piowrite(PIO_RED, ledon);
+}
+
+#endif /* !CONFIG_ARCH_LEDS */