Add initial support for the Atmel SAMD20 Xplained Pro board

ChangeLog

@@ -6576,3 +6576,7 @@
 	* arch/arm/include/samd and src/samd:  Basic framework to support Atmel
 	  SAMD20 Cortex-M0+ chips.  Initial check-in is incomplete; this is a
 	  work in progress (2014-2-12).
+	* configs/samd20-xplained:  Framework to support the Amtel SAMD20
+	  Xplained Pro.  Initial check is just an unverified, rough port of
+	  the SAM4L Xplained Pro configuration (2014-2-12).
+

Documentation/README.html

@@ -163,6 +163,8 @@
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/rgmp/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- sama5d3x-ek/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sama5d3x-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/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/sam3u-ek/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- sam4l-xplained/

README.txt

@@ -1109,6 +1109,8 @@ nuttx
  |   |   `- README.txt
  |   |- sama5d3x-ek/
  |   |   `- README.txt
+ |   |- samd20-xplained/
+ |   |   `- README.txt
  |   |- sam3u-ek/
  |   |   `- README.txt
  |   |- sam4l-xplained/

arch/arm/src/samd/Kconfig

@@ -18,28 +18,28 @@ config ARCH_CHIP_SAMD20E14
 		Flash 16KB SRAM 2KB
 
 config ARCH_CHIP_SAMD20E15
-	bool "SAMD20E14"
+	bool "SAMD20E15"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20E
 	---help---
 		Flash 32KB SRAM 4KB
 
 config ARCH_CHIP_SAMD20E16
-	bool "SAMD20E14"
+	bool "SAMD20E16"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20E
 	---help---
 		Flash 64KB SRAM 8KB
 
 config ARCH_CHIP_SAMD20E17
-	bool "SAMD20E14"
+	bool "SAMD20E17"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20E
 	---help---
 		Flash 128KB SRAM 16KB
 
 config ARCH_CHIP_SAMD20E18
-	bool "SAMD20E14"
+	bool "SAMD20E18"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20E
 	---help---
@@ -53,28 +53,28 @@ config ARCH_CHIP_SAMD20G14
 		Flash 16KB SRAM 2KB
 
 config ARCH_CHIP_SAMD20G15
-	bool "SAMD20G14"
+	bool "SAMD20G15"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20G
 	---help---
 		Flash 32KB SRAM 4KB
 
 config ARCH_CHIP_SAMD20G16
-	bool "SAMD20G14"
+	bool "SAMD20G16"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20G
 	---help---
 		Flash 64KB SRAM 8KB
 
 config ARCH_CHIP_SAMD20G17
-	bool "SAMD20G14"
+	bool "SAMD20G17"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20G
 	---help---
 		Flash 128KB SRAM 16KB
 
 config ARCH_CHIP_SAMD20G18
-	bool "SAMD20G14"
+	bool "SAMD20G18"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20G
 	---help---
@@ -88,28 +88,28 @@ config ARCH_CHIP_SAMD20J14
 		Flash 16KB SRAM 2KB
 
 config ARCH_CHIP_SAMD20J15
-	bool "SAMD20J14"
+	bool "SAMD20J15"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20J
 	---help---
 		Flash 32KB SRAM 4KB
 
 config ARCH_CHIP_SAMD20J16
-	bool "SAMD20J14"
+	bool "SAMD20J16"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20J
 	---help---
 		Flash 64KB SRAM 8KB
 
 config ARCH_CHIP_SAMD20J17
-	bool "SAMD20J14"
+	bool "SAMD20J17"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20J
 	---help---
 		Flash 128KB SRAM 16KB
 
 config ARCH_CHIP_SAMD20J18
-	bool "SAMD20J14"
+	bool "SAMD20J18"
 	select ARCH_FAMILY_SAMD20
 	select ARCH_FAMILY_SAMD20J
 	---help---
@@ -139,6 +139,22 @@ config ARCH_FAMILY_SAMD20J
 	select SAMD_HAVE_TC6
 	select SAMD_HAVE_TC7
 
+config SAMD_HAVE_SERCOM4
+	bool
+	default n
+
+config SAMD_HAVE_SERCOM5
+	bool
+	default n
+
+config SAMD_HAVE_TC6
+	bool
+	default n
+
+config SAMD_HAVE_TC7
+	bool
+	default n
+
 menu "SAMD Peripheral Support"
 
 config SAMD_WDT
@@ -237,18 +253,18 @@ endmenu
 
 choice
 	prompt "SERCOM0 mode"
-	default SAM_SERCOM0_UART
+	default SAMD_SERCOM0_ISUART
 	depends on SAMD_SERCOM0
 
-config SAM_SERCOM0_I2C
+config SAMD_SERCOM0_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM0_SPI
+config SAMD_SERCOM0_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM0_UART
+config SAMD_SERCOM0_ISUART
 bool "UART"
 select ARCH_HAVE_UART0
 
@@ -256,18 +272,18 @@ endchoice
 
 choice
 	prompt "SERCOM1 mode"
-	default SAM_SERCOM1_UART
+	default SAMD_SERCOM1_ISUART
 	depends on SAMD_SERCOM1
 
-config SAM_SERCOM1_I2C
+config SAMD_SERCOM1_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM1_SPI
+config SAMD_SERCOM1_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM1_UART
+config SAMD_SERCOM1_ISUART
 bool "UART"
 select ARCH_HAVE_UART1
 
@@ -275,18 +291,18 @@ endchoice
 
 choice
 	prompt "SERCOM2 mode"
-	default SAM_SERCOM2_UART
+	default SAMD_SERCOM2_ISUART
 	depends on SAMD_SERCOM2
 
-config SAM_SERCOM2_I2C
+config SAMD_SERCOM2_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM2_SPI
+config SAMD_SERCOM2_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM2_UART
+config SAMD_SERCOM2_ISUART
 bool "UART"
 select ARCH_HAVE_UART2
 
@@ -294,18 +310,18 @@ endchoice
 
 choice
 	prompt "SERCOM3 mode"
-	default SAM_SERCOM3_UART
+	default SAMD_SERCOM3_ISUART
 	depends on SAMD_SERCOM3
 
-config SAM_SERCOM3_I2C
+config SAMD_SERCOM3_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM3_SPI
+config SAMD_SERCOM3_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM3_UART
+config SAMD_SERCOM3_ISUART
 bool "UART"
 select ARCH_HAVE_UART3
 
@@ -313,18 +329,18 @@ endchoice
 
 choice
 	prompt "SERCOM4 mode"
-	default SAM_SERCOM4_UART
+	default SAMD_SERCOM4_ISUART
 	depends on SAMD_SERCOM4
 
-config SAM_SERCOM4_I2C
+config SAMD_SERCOM4_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM4_SPI
+config SAMD_SERCOM4_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM4_UART
+config SAMD_SERCOM4_ISUART
 bool "UART"
 select ARCH_HAVE_UART4
 
@@ -332,18 +348,18 @@ endchoice
 
 choice
 	prompt "SERCOM5 mode"
-	default SAM_SERCOM5_UART
+	default SAMD_SERCOM5_ISUART
 	depends on SAMD_SERCOM5
 
-config SAM_SERCOM5_I2C
+config SAMD_SERCOM5_ISI2C
 bool "I2C"
 select I2C
 
-config SAM_SERCOM5_SPI
+config SAMD_SERCOM5_ISSPI
 bool "SPI"
 select SPI
 
-config SAM_SERCOM5_UART
+config SAMD_SERCOM5_ISUART
 bool "UART"
 select ARCH_HAVE_UART5
 

configs/Kconfig

@@ -552,6 +552,15 @@ config ARCH_BOARD_SAMA5D3X_EK
 	---help---
 		The port of NuttX to the Atmel SAMA5D3x-EK development board (where x=1,3,4, or 5).
 
+config ARCH_BOARD_SAMD20_XPLAINED
+	bool "Atmel SAMD20-Xplained Pro development board"
+	depends on ARCH_CHIP_SAMD20J18
+	select ARCH_HAVE_LEDS
+	select ARCH_HAVE_BUTTONS
+	select ARCH_HAVE_IRQBUTTONS
+	---help---
+		The port of NuttX to the Atmel SAMD20-Xplained Pro development board
+
 config ARCH_BOARD_SAM3UEK
 	bool "Atmel SAM3U-EK development board"
 	depends on ARCH_CHIP_ATSAM3U4E
@@ -935,6 +944,7 @@ config ARCH_BOARD
 	default "qemu-i486"           if ARCH_BOARD_QEMU_I486
 	default "rgmp"                if ARCH_BOARD_RGMP
 	default "sama5d3x-ek"         if ARCH_BOARD_SAMA5D3X_EK
+	default "samd20-xplained"     if ARCH_BOARD_SAMD20_XPLAINED
 	default "sam3u-ek"            if ARCH_BOARD_SAM3UEK
 	default "sam4l-xplained"      if ARCH_BOARD_SAM4L_XPLAINED
 	default "sam4s-xplained"      if ARCH_BOARD_SAM4S_XPLAINED
@@ -1185,6 +1195,9 @@ endif
 if ARCH_BOARD_SAMA5D3X_EK
 source "configs/sama5d3x-ek/Kconfig"
 endif
+if ARCH_BOARD_SAMD20_XPLAINED
+source "configs/samd20-xplained/Kconfig"
+endif
 if ARCH_BOARD_SAM3UEK
 source "configs/sam3u-ek/Kconfig"
 endif

configs/README.txt

@@ -482,6 +482,9 @@ configs/sama5d3x-ek
   There is also the SAMA5D3FAE-EK bundle includes everything:  The base
   board, all four CPU modules, and the LCD.
 
+configs/samd20-xplained
+  The port of NuttX to the Atmel SAMD20-Xplained development board.
+
 configs/sam3u-ek
   The port of NuttX to the Atmel SAM3U-EK development board.
 

configs/samd20-xplained/README.txt

@@ -527,12 +527,12 @@ SAMD20 Xplained Pro-specific Configuration Options
   Some subsystems can be configured to operate in different ways. The drivers
   need to know how to configure the subsystem.
 
-    CONFIG_SAM_SERCOM0_I2C, CONFIG_SAM_SERCOM0_SPI, or CONFIG_SAM_SERCOM0_UART
+    CONFIG_SAMD_SERCOM0_ISI2C, CONFIG_SAMD_SERCOM0_ISSPI, or CONFIG_SAMD_SERCOM0_ISUART
-    CONFIG_SAM_SERCOM1_I2C, CONFIG_SAM_SERCOM1_SPI, or CONFIG_SAM_SERCOM1_UART
+    CONFIG_SAMD_SERCOM1_ISI2C, CONFIG_SAMD_SERCOM1_ISSPI, or CONFIG_SAMD_SERCOM1_ISUART
-    CONFIG_SAM_SERCOM2_I2C, CONFIG_SAM_SERCOM2_SPI, or CONFIG_SAM_SERCOM2_UART
+    CONFIG_SAMD_SERCOM2_ISI2C, CONFIG_SAMD_SERCOM2_ISSPI, or CONFIG_SAMD_SERCOM2_ISUART
-    CONFIG_SAM_SERCOM3_I2C, CONFIG_SAM_SERCOM3_SPI, or CONFIG_SAM_SERCOM3_UART
+    CONFIG_SAMD_SERCOM3_ISI2C, CONFIG_SAMD_SERCOM3_ISSPI, or CONFIG_SAMD_SERCOM3_ISUART
-    CONFIG_SAM_SERCOM4_I2C, CONFIG_SAM_SERCOM4_SPI, or CONFIG_SAM_SERCOM4_UART
+    CONFIG_SAMD_SERCOM4_ISI2C, CONFIG_SAMD_SERCOM4_ISSPI, or CONFIG_SAMD_SERCOM4_ISUART
-    CONFIG_SAM_SERCOM5_I2C, CONFIG_SAM_SERCOM5_SPI, or CONFIG_SAM_SERCOM5_UART
+    CONFIG_SAMD_SERCOM5_ISI2C, CONFIG_SAMD_SERCOM5_ISSPI, or CONFIG_SAMD_SERCOM5_ISUART
 
   SAT91SAMD20 specific device driver settings
 
@@ -597,11 +597,11 @@ Configurations
      SERCOM4:
 
        System Type -> SAMD Peripheral Support
-         CONFIG_SAM_SERCOM3=y
+         CONFIG_SAMD_SERCOM3=y
-         CONFIG_SAM_SERCOM4=n
+         CONFIG_SAMD_SERCOM4=n
 
        Device Drivers -> Serial Driver Support -> Serial Console
-         CONFIG_SERCOM3_SERIAL_CONSOLE=y
+         CONFIG_UART3_SERIAL_CONSOLE=y
 
        Device Drivers -> Serial Driver Support -> SERCOM4 Configuration
          CONFIG_UART3_2STOP=0