MISOC LM32: configs/misoc board support for testing

configs/misoc/Kconfig

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+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#

configs/misoc/hello/Make.defs

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+############################################################################
+# configs/misoc/hello/Make.defs
+#
+#   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#           Ramtin Amin <keytwo@gmail.com>
+#
+# 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 ${TOPDIR}/tools/Config.mk
+CROSSDEV = lm32-elf-
+
+LDSCRIPT = ld.script
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/copydir.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mkwindeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = $(ARCHINCLUDES) "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)}"
+else
+  # Linux/Cygwin-native toolchain
+  MKDEP = $(TOPDIR)/tools/mkdeps$(HOSTEXEEXT)
+  ARCHINCLUDES = -I. -isystem "$(TOPDIR)/include"
+  ARCHXXINCLUDES =  $(ARCHINCLUDES) -isystem "$(TOPDIR)/include/cxx"
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD_CUSTOM_NAME)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)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
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHDEFINES =
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+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)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ASMEXT = .S
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -Wundef -g -pipe
+HOSTLDFLAGS =

configs/misoc/hello/setenv.sh

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+#!/bin/bash
+# configs/amber/hello/setenv.sh
+#
+#   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#           Ramtin Amin <keytwo@gmail.com>
+#
+# 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="${PATH}"
+fi
+
+# This is the Cygwin path to the location where I installed the WinAVR
+# toolchain under windows.  This is *not* the default install
+# location so you will probably have to edit this.  You will also have
+# to edit this if you install the Linux AVR toolchain as well
+#export TOOLCHAIN_BIN="/cygdrive/c/WinAVR/bin"
+
+# This is the Cygwin path to the location where I build the buildroot
+# toolchain.
+#export TOOLCHAIN_BIN="${WD}/../buildroot/build_avr/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/misoc/include/board.h

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+/****************************************************************************
+ * configs/misoc/include/board.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_AMBER_INCLUDE_BOARD_H
+#define __CONFIGS_AMBER_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+/* Assume default CLKDIV8 fuse setting is overridden to CLKDIV1 */
+
+#define BOARD_XTAL_FREQ        14745600         /* 14.7456MHz crystal */
+#define BOARD_CPU_CLOCK        BOARD_XTAL_FREQ  /* F_CPU = 14.7456MHz */
+#define BOARD_TOSCK_CLOCK      32768            /* TOSC  = 32.768KHz */
+
+/* LED definitions **********************************************************/
+/* The Amber Web Server has a reset switch and four LEDs. The LEDs indicate
+ * the status of power, programming state, Ethernet link status and reset
+ * status (Active).  None are available for software use.
+ */
+
+#define LED_STARTED            0
+#define LED_HEAPALLOCATE       1
+#define LED_IRQSENABLED        2
+#define LED_STACKCREATED       3
+#define LED_INIRQ              4
+#define LED_SIGNAL             5
+#define LED_ASSERTION          6
+#define LED_PANIC              7
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_AMBER_INCLUDE_BOARD_H */

configs/misoc/include/generated/common.h

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+/****************************************************************************
+ * configs/misoc/include/generated/common.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_MISOC_INCLUDE_GENERATED_COMMON_H
+#define __CONFIGS_MISOC_INCLUDE_GENERATED_COMMON_H
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef __ASSEMBLER__
+#  define MMPTR(x) x
+#else
+#  define MMPTR(x) (*((volatile unsigned int *)(x)))
+#endif
+
+#endif /* __CONFIGS_MISOC_INCLUDE_GENERATED_COMMON_H */

configs/misoc/include/generated/csr.h

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+/****************************************************************************
+ * configs/misoc/include/generated/csr.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_MISOC_INCLUDE_GENERATED_CSR_H
+#define __CONFIGS_MISOC_INCLUDE_GENERATED_CSR_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include "hw/common.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* SDRAM */
+
+#define CSR_SDRAM_BASE 0xe0004000
+#define CSR_SDRAM_DFII_CONTROL_ADDR 0xe0004000
+#define CSR_SDRAM_DFII_CONTROL_SIZE 1
+
+#define CSR_SDRAM_DFII_PI0_COMMAND_ADDR 0xe0004004
+#define CSR_SDRAM_DFII_PI0_COMMAND_SIZE 1
+
+#define CSR_SDRAM_DFII_PI0_COMMAND_ISSUE_ADDR 0xe0004008
+#define CSR_SDRAM_DFII_PI0_COMMAND_ISSUE_SIZE 1
+
+#define CSR_SDRAM_DFII_PI0_ADDRESS_ADDR 0xe000400c
+#define CSR_SDRAM_DFII_PI0_ADDRESS_SIZE 2
+
+#define CSR_SDRAM_DFII_PI0_BADDRESS_ADDR 0xe0004014
+#define CSR_SDRAM_DFII_PI0_BADDRESS_SIZE 1
+
+#define CSR_SDRAM_DFII_PI0_WRDATA_ADDR 0xe0004018
+#define CSR_SDRAM_DFII_PI0_WRDATA_SIZE 2
+
+#define CSR_SDRAM_DFII_PI0_RDDATA_ADDR 0xe0004020
+#define CSR_SDRAM_DFII_PI0_RDDATA_SIZE 2
+
+#define CSR_TIMER0_BASE 0xe0002000
+#define CSR_TIMER0_LOAD_ADDR 0xe0002000
+#define CSR_TIMER0_LOAD_SIZE 4
+
+#define CSR_TIMER0_RELOAD_ADDR 0xe0002010
+#define CSR_TIMER0_RELOAD_SIZE 4
+
+#define CSR_TIMER0_EN_ADDR 0xe0002020
+#define CSR_TIMER0_EN_SIZE 1
+
+#define CSR_TIMER0_UPDATE_VALUE_ADDR 0xe0002024
+#define CSR_TIMER0_UPDATE_VALUE_SIZE 1
+
+#define CSR_TIMER0_VALUE_ADDR 0xe0002028
+#define CSR_TIMER0_VALUE_SIZE 4
+
+#define CSR_TIMER0_EV_STATUS_ADDR 0xe0002038
+#define CSR_TIMER0_EV_STATUS_SIZE 1
+
+#define CSR_TIMER0_EV_PENDING_ADDR 0xe000203c
+#define CSR_TIMER0_EV_PENDING_SIZE 1
+
+#define CSR_TIMER0_EV_ENABLE_ADDR 0xe0002040
+#define CSR_TIMER0_EV_ENABLE_SIZE 1
+
+#define CSR_UART_TXFULL_ADDR 0xe0001004
+#define CSR_UART_TXFULL_SIZE 1
+
+#define CSR_UART_RXEMPTY_ADDR 0xe0001008
+#define CSR_UART_RXEMPTY_SIZE 1
+
+#define CSR_UART_EV_STATUS_ADDR 0xe000100c
+#define CSR_UART_EV_STATUS_SIZE 1
+
+#define CSR_UART_EV_PENDING_ADDR 0xe0001010
+#define CSR_UART_EV_PENDING_SIZE 1
+
+#define CSR_UART_EV_ENABLE_ADDR 0xe0001014
+#define CSR_UART_EV_ENABLE_SIZE 1
+
+#define CSR_UART_PHY_BASE 0xe0000800
+#define CSR_UART_PHY_TUNING_WORD_ADDR 0xe0000800
+#define CSR_UART_PHY_TUNING_WORD_SIZE 4
+
+/* Constants */
+
+#define UART_INTERRUPT 0
+#define TIMER0_INTERRUPT 1
+#define SYSTEM_CLOCK_FREQUENCY 80000000
+#define L2_SIZE 8192
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+static inline unsigned char sdram_dfii_control_read(void)
+{
+  unsigned char r = MMPTR(0xe0004000);
+  return r;
+}
+
+static inline void sdram_dfii_control_write(unsigned char value)
+{
+  MMPTR(0xe0004000) = value;
+}
+
+static inline unsigned char sdram_dfii_pi0_command_read(void)
+{
+  unsigned char r = MMPTR(0xe0004004);
+  return r;
+}
+
+static inline void sdram_dfii_pi0_command_write(unsigned char value)
+{
+  MMPTR(0xe0004004) = value;
+}
+
+static inline unsigned char sdram_dfii_pi0_command_issue_read(void)
+{
+  unsigned char r = MMPTR(0xe0004008);
+  return r;
+}
+
+static inline void sdram_dfii_pi0_command_issue_write(unsigned char value)
+{
+  MMPTR(0xe0004008) = value;
+}
+
+static inline unsigned short int sdram_dfii_pi0_address_read(void)
+{
+  unsigned short int r = MMPTR(0xe000400c);
+  r <<= 8;
+  r |= MMPTR(0xe0004010);
+  return r;
+}
+
+static inline void sdram_dfii_pi0_address_write(unsigned short int value)
+{
+  MMPTR(0xe000400c) = value >> 8;
+  MMPTR(0xe0004010) = value;
+}
+
+static inline unsigned char sdram_dfii_pi0_baddress_read(void)
+{
+  unsigned char r = MMPTR(0xe0004014);
+  return r;
+}
+
+static inline void sdram_dfii_pi0_baddress_write(unsigned char value)
+{
+  MMPTR(0xe0004014) = value;
+}
+
+static inline unsigned short int sdram_dfii_pi0_wrdata_read(void)
+{
+  unsigned short int r = MMPTR(0xe0004018);
+  r <<= 8;
+  r |= MMPTR(0xe000401c);
+  return r;
+}
+
+static inline void sdram_dfii_pi0_wrdata_write(unsigned short int value)
+{
+  MMPTR(0xe0004018) = value >> 8;
+  MMPTR(0xe000401c) = value;
+}
+
+static inline unsigned short int sdram_dfii_pi0_rddata_read(void)
+{
+  unsigned short int r = MMPTR(0xe0004020);
+  r <<= 8;
+  r |= MMPTR(0xe0004024);
+  return r;
+}
+
+/* Timer0 */
+
+static inline unsigned int timer0_load_read(void)
+{
+  unsigned int r = MMPTR(0xe0002000);
+  r <<= 8;
+  r |= MMPTR(0xe0002004);
+  r <<= 8;
+  r |= MMPTR(0xe0002008);
+  r <<= 8;
+  r |= MMPTR(0xe000200c);
+  return r;
+}
+
+static inline void timer0_load_write(unsigned int value)
+{
+  MMPTR(0xe0002000) = value >> 24;
+  MMPTR(0xe0002004) = value >> 16;
+  MMPTR(0xe0002008) = value >> 8;
+  MMPTR(0xe000200c) = value;
+}
+
+static inline unsigned int timer0_reload_read(void)
+{
+  unsigned int r = MMPTR(0xe0002010);
+  r <<= 8;
+  r |= MMPTR(0xe0002014);
+  r <<= 8;
+  r |= MMPTR(0xe0002018);
+  r <<= 8;
+  r |= MMPTR(0xe000201c);
+  return r;
+}
+
+static inline void timer0_reload_write(unsigned int value)
+{
+  MMPTR(0xe0002010) = value >> 24;
+  MMPTR(0xe0002014) = value >> 16;
+  MMPTR(0xe0002018) = value >> 8;
+  MMPTR(0xe000201c) = value;
+}
+
+static inline unsigned char timer0_en_read(void)
+{
+  unsigned char r = MMPTR(0xe0002020);
+  return r;
+}
+
+static inline void timer0_en_write(unsigned char value)
+{
+  MMPTR(0xe0002020) = value;
+}
+
+static inline unsigned char timer0_update_value_read(void)
+{
+  unsigned char r = MMPTR(0xe0002024);
+  return r;
+}
+
+static inline void timer0_update_value_write(unsigned char value)
+{
+  MMPTR(0xe0002024) = value;
+}
+
+static inline unsigned int timer0_value_read(void)
+{
+  unsigned int r = MMPTR(0xe0002028);
+  r <<= 8;
+  r |= MMPTR(0xe000202c);
+  r <<= 8;
+  r |= MMPTR(0xe0002030);
+  r <<= 8;
+  r |= MMPTR(0xe0002034);
+  return r;
+}
+
+static inline unsigned char timer0_ev_status_read(void)
+{
+  unsigned char r = MMPTR(0xe0002038);
+  return r;
+}
+
+static inline void timer0_ev_status_write(unsigned char value)
+{
+  MMPTR(0xe0002038) = value;
+}
+
+static inline unsigned char timer0_ev_pending_read(void)
+{
+  unsigned char r = MMPTR(0xe000203c);
+  return r;
+}
+
+static inline void timer0_ev_pending_write(unsigned char value)
+{
+  MMPTR(0xe000203c) = value;
+}
+
+static inline unsigned char timer0_ev_enable_read(void)
+{
+  unsigned char r = MMPTR(0xe0002040);
+  return r;
+}
+
+static inline void timer0_ev_enable_write(unsigned char value)
+{
+  MMPTR(0xe0002040) = value;
+}
+
+/* UART */
+
+static inline unsigned char uart_rxtx_read(void)
+{
+  unsigned char r = MMPTR(0xe0001000);
+  return r;
+}
+
+static inline void uart_rxtx_write(unsigned char value)
+{
+  MMPTR(0xe0001000) = value;
+}
+
+static inline unsigned char uart_txfull_read(void)
+{
+  unsigned char r = MMPTR(0xe0001004);
+  return r;
+}
+
+static inline unsigned char uart_rxempty_read(void)
+{
+  unsigned char r = MMPTR(0xe0001008);
+  return r;
+}
+
+static inline unsigned char uart_ev_status_read(void)
+{
+  unsigned char r = MMPTR(0xe000100c);
+  return r;
+}
+
+static inline void uart_ev_status_write(unsigned char value)
+{
+  MMPTR(0xe000100c) = value;
+}
+
+static inline unsigned char uart_ev_pending_read(void)
+{
+  unsigned char r = MMPTR(0xe0001010);
+  return r;
+}
+
+static inline void uart_ev_pending_write(unsigned char value)
+{
+  MMPTR(0xe0001010) = value;
+}
+
+static inline unsigned char uart_ev_enable_read(void)
+{
+  unsigned char r = MMPTR(0xe0001014);
+  return r;
+}
+
+static inline void uart_ev_enable_write(unsigned char value)
+{
+  MMPTR(0xe0001014) = value;
+}
+
+/* uart_phy */
+
+static inline unsigned int uart_phy_tuning_word_read(void)
+{
+  unsigned int r = MMPTR(0xe0000800);
+  r <<= 8;
+  r |= MMPTR(0xe0000804);
+  r <<= 8;
+  r |= MMPTR(0xe0000808);
+  r <<= 8;
+  r |= MMPTR(0xe000080c);
+  return r;
+}
+
+static inline void uart_phy_tuning_word_write(unsigned int value)
+{
+  MMPTR(0xe0000800) = value >> 24;
+  MMPTR(0xe0000804) = value >> 16;
+  MMPTR(0xe0000808) = value >> 8;
+  MMPTR(0xe000080c) = value;
+}
+
+#endif /* __CONFIGS_MISOC_INCLUDE_GENERATED_CSR_H */

configs/misoc/include/generated/mem.h

@@ -0,0 +1,52 @@
+/****************************************************************************
+ * configs/misoc/include/generated/mem.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_MISOC_INCLUDE_GENERATED_MEM_H
+#define __CONFIGS_MISOC_INCLUDE_GENERATED_MEM_H
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define ROM_BASE 0x00000000
+#define ROM_SIZE 0x00008000
+
+#define SRAM_BASE 0x10000000
+#define SRAM_SIZE 0x00001000
+
+#define MAIN_RAM_BASE 0x40000000
+#define MAIN_RAM_SIZE 0x00800000
+
+#endif /* __CONFIGS_MISOC_INCLUDE_GENERATED_MEM_H /

configs/misoc/include/generated/output_format.ld

@@ -0,0 +1 @@
+OUTPUT_FORMAT("elf32-lm32")

configs/misoc/include/generated/regions.ld

@@ -0,0 +1,6 @@
+MEMORY
+{
+	rom : ORIGIN = 0x00000000, LENGTH = 0x00008000
+	sram : ORIGIN = 0x10000000, LENGTH = 0x00001000
+	main_ram : ORIGIN = 0x40000000, LENGTH = 0x00800000
+}

configs/misoc/include/generated/sdram_phy.h

@@ -0,0 +1,144 @@
+/****************************************************************************
+ * configs/misoc/include/generated/common.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_MISOC_INCLUDE_GENERATED_SDRAM_PHY_H
+#define __CONFIGS_MISOC_INCLUDE_GENERATED_SDRAM_PHY_H
+
+/****************************************************************************
+ * Included Filese
+ ****************************************************************************/
+
+#include "hw/common.h"
+#include "hw/flags.h"
+
+#include <arch/board/generated/csr.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define DFII_NPHASES 1
+
+#define sdram_dfii_pird_address_write(X) sdram_dfii_pi0_address_write(X)
+#define sdram_dfii_piwr_address_write(X) sdram_dfii_pi0_address_write(X)
+
+#define sdram_dfii_pird_baddress_write(X) sdram_dfii_pi0_baddress_write(X)
+#define sdram_dfii_piwr_baddress_write(X) sdram_dfii_pi0_baddress_write(X)
+
+#define command_prd(X) command_p0(X)
+#define command_pwr(X) command_p0(X)
+
+#define DFII_PIX_DATA_SIZE CSR_SDRAM_DFII_PI0_WRDATA_SIZE
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+const unsigned int sdram_dfii_pix_wrdata_addr[1] =
+{
+  CSR_SDRAM_DFII_PI0_WRDATA_ADDR
+};
+
+const unsigned int sdram_dfii_pix_rddata_addr[1] =
+{
+  CSR_SDRAM_DFII_PI0_RDDATA_ADDR
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void cdelay(int i);
+
+static void command_p0(int cmd)
+{
+  sdram_dfii_pi0_command_write(cmd);
+  sdram_dfii_pi0_command_issue_write(1);
+}
+
+static void init_sequence(void)
+{
+  /* Bring CKE high */
+
+  sdram_dfii_pi0_address_write(0x0);
+  sdram_dfii_pi0_baddress_write(0);
+  sdram_dfii_control_write(DFII_CONTROL_CKE | DFII_CONTROL_ODT |
+                           DFII_CONTROL_RESET_N);
+  cdelay(20000);
+
+  /* Precharge All */
+
+  sdram_dfii_pi0_address_write(0x400);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_WE | DFII_COMMAND_CS);
+
+  /* Load Mode Register / Reset DLL, CL=2, BL=1 */
+
+  sdram_dfii_pi0_address_write(0x120);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_CAS | DFII_COMMAND_WE |
+             DFII_COMMAND_CS);
+  cdelay(200);
+
+  /* Precharge All */
+
+  sdram_dfii_pi0_address_write(0x400);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_WE | DFII_COMMAND_CS);
+
+  /* Auto Refresh */
+
+  sdram_dfii_pi0_address_write(0x0);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_CAS | DFII_COMMAND_CS);
+  cdelay(4);
+
+  /* Auto Refresh */
+
+  sdram_dfii_pi0_address_write(0x0);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_CAS | DFII_COMMAND_CS);
+  cdelay(4);
+
+  /* Load Mode Register / CL=2, BL=1 */
+
+  sdram_dfii_pi0_address_write(0x20);
+  sdram_dfii_pi0_baddress_write(0);
+  command_p0(DFII_COMMAND_RAS | DFII_COMMAND_CAS | DFII_COMMAND_WE |
+             DFII_COMMAND_CS);
+  cdelay(200);
+}
+
+#endif /* __CONFIGS_MISOC_INCLUDE_GENERATED_SDRAM_PHY_H

configs/misoc/include/generated/variables.mak

@@ -0,0 +1,11 @@
+TRIPLE=lm32-elf
+CPU=lm32
+CPUFLAGS=-mbarrel-shift-enabled -mmultiply-enabled -mdivide-enabled -msign-extend-enabled
+CPUENDIANNESS=big
+CLANG=0
+SOC_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc
+BUILDINC_DIRECTORY=/home/lenovo/fpga/litex/litex/boards/targets/soc_basesoc_papilio_pro/software/include
+LIBBASE_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libbase
+LIBCOMPILER_RT_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libcompiler_rt
+LIBNET_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/libnet
+BIOS_DIRECTORY=/usr/local/lib/python3.5/dist-packages/litex-0.1-py3.5.egg/litex/soc/software/bios

configs/misoc/scripts/ld.script

@@ -0,0 +1,106 @@
+/****************************************************************************
+ * configs/misoc/hello/script/ld.script
+ *
+ *   Copyright (C) 2016 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.
+ *
+ ****************************************************************************/
+
+OUTPUT_FORMAT("elf32-lm32")
+ENTRY(_stext)
+
+MEMORY
+{
+  rom : ORIGIN = 0x00000000, LENGTH = 0x00008000
+  sram : ORIGIN = 0x10000000, LENGTH = 0x00004000
+  main_ram : ORIGIN = 0x40000000, LENGTH = 0x00080000
+}
+
+/*
+MEMORY
+{
+    flash (rxai!w)  : ORIGIN = 0x80002000, LENGTH = 256K - 8K
+    intram (wxa!ri) : ORIGIN = 0x00000004, LENGTH = 32K
+    userpage        : ORIGIN = 0x80800000, LENGTH = 512
+    factorypage     : ORIGIN = 0x80800200, LENGTH = 512
+}
+*/
+
+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.*)
+		_etext = ABSOLUTE(.);
+	} > main_ram
+
+	_eronly = ABSOLUTE(.);		/* See below                    */
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > main_ram 
+
+	.bss : {			/* BSS				*/
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > main_ram
+					/* 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) }
+}
+
+PROVIDE(_fstack = ORIGIN(main_ram) + LENGTH(main_ram) - 4);

configs/misoc/src/.gitignore

@@ -0,0 +1,2 @@
+/.depend
+/Make.dep

configs/misoc/src/Makefile

@@ -0,0 +1,42 @@
+############################################################################
+# configs/misoc/src/Makefile
+#
+#   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#           Ramtin Amin <keytwo@gmail.com>
+#
+# 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
+
+ASRCS =
+CSRCS = atmega_boot.c
+
+include $(TOPDIR)/configs/Board.mk

configs/misoc/src/lm32_boot.c

@@ -0,0 +1,68 @@
+/************************************************************************************
+ * configs/misoc/src/lm32_boot.c
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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 <arch/board/board.h>
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lm32_board_initialize
+ *
+ * Description:
+ *   All LM32 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 lm32_board_initialize(void)
+{
+  /* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak
+   * function atmega_spidev_initialize() has been brought into the link.
+   */
+
+  /* Configure on-board LEDs if LED support has been selected. */
+}

configs/misoc/src/misoc.h

@@ -0,0 +1,102 @@
+/****************************************************************************
+ * configs/misoc/src/misoc.h
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *           Ramtin Amin <keytwo@gmail.com>
+ *
+ * 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_MISOC_SRC_MISOC_H
+#define __CONFIGS_MISOC_SRC_MISOC_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Name: lm32_spidev_initialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the Amber Web Server.
+ *
+ ************************************************************************************/
+
+#if defined(CONFIG_AVR_SPI1) || defined(CONFIG_AVR_SPI2)
+void weak_function lm32_spidev_initialize(void);
+#endif
+
+/************************************************************************************
+ * Name: lm32_led_initialize
+ *
+ * Description:
+ *   Configure on-board LEDs if LED support has been selected.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void lm32_led_initialize(void);
+#endif
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_MISOC_SRC_MISOC_H */