From 1ae40c676a839d7f523d62da03687af22f877261 Mon Sep 17 00:00:00 2001
From: aleph <aleph@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Tue, 5 Oct 2010 16:45:35 +0000
Subject: [PATCH] sam3n: add flash definitions and linker script

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4412 38d2e660-2303-0410-9eaa-f027e97ec537
---
 bertos/cpu/cortex-m3/io/sam3.h                |  1 +
 bertos/cpu/cortex-m3/io/sam3_flash.h          | 94 +++++++++++++++++++
 .../cpu/cortex-m3/scripts/at91sam3n4_rom.ld   | 49 ++++++++++
 3 files changed, 144 insertions(+)
 create mode 100644 bertos/cpu/cortex-m3/io/sam3_flash.h
 create mode 100644 bertos/cpu/cortex-m3/scripts/at91sam3n4_rom.ld

diff --git a/bertos/cpu/cortex-m3/io/sam3.h b/bertos/cpu/cortex-m3/io/sam3.h
index 46425493..b40381e5 100644
--- a/bertos/cpu/cortex-m3/io/sam3.h
+++ b/bertos/cpu/cortex-m3/io/sam3.h
@@ -48,5 +48,6 @@
 #include "sam3_gpio.h"
 #include "sam3_nvic.h"
 #include "sam3_uart.h"
+#include "sam3_flash.h"
 
 #endif /* SAM3_H */
diff --git a/bertos/cpu/cortex-m3/io/sam3_flash.h b/bertos/cpu/cortex-m3/io/sam3_flash.h
new file mode 100644
index 00000000..03cca342
--- /dev/null
+++ b/bertos/cpu/cortex-m3/io/sam3_flash.h
@@ -0,0 +1,94 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief ATSAM3 enhanced embedded flash controller definitions.
+ */
+
+#ifndef SAM3_FLASH_H
+#define SAM3_FLASH_H
+
+/**
+ * EEFC registers.
+ */
+/*\{*/
+#define EEFC_FMR_R  (*((reg32_t *)0x400E0A00))  ///< Flash Mode Register
+#define EEFC_FCR_R  (*((reg32_t *)0x400E0A04))  ///< Flash Command Register
+#define EEFC_FSR_R  (*((reg32_t *)0x400E0A08))  ///< Flash Status Register
+#define EEFC_FRR_R  (*((reg32_t *)0x400E0A0C))  ///< Flash Result Register
+/*\}*/
+
+/**
+ * EFC register addresses.
+ */
+/*\{*/
+#define EEFC_FMR  0x400E0A00   ///< Flash Mode Register
+#define EEFC_FCR  0x400E0A04   ///< Flash Command Register
+#define EEFC_FSR  0x400E0A08   ///< Flash Status Register
+#define EEFC_FRR  0x400E0A0C   ///< Flash Result Register
+/*\}*/
+
+
+/**
+ * Defines for bit fields in EEFC_FMR register.
+ */
+/*\{*/
+#define EEFC_FMR_FRDY        BV(0)                   ///< Ready Interrupt Enable
+#define EEFC_FMR_FWS_S       8
+#define EEFC_FMR_FWS_M       (0xf << EEFC_FMR_FWS_S) ///< Flash Wait State
+#define EEFC_FMR_FWS(value)  (EEFC_FMR_FWS_M & ((value) << EEFC_FMR_FWS_S))
+#define EEFC_FMR_FAM BV(24)                          ///< Flash Access Mode
+/*\}*/
+
+/**
+ * Defines for bit fields in EEFC_FCR register.
+ */
+/*\{*/
+#define EEFC_FCR_FCMD_M       0xff                        ///< Flash Command
+#define EEFC_FCR_FCMD(value)  (EEFC_FCR_FCMD_M & (value))
+#define EEFC_FCR_FARG_S       8
+#define EEFC_FCR_FARG_M       (0xffff << EEFC_FCR_FARG_S) ///< Flash Command Argument
+#define EEFC_FCR_FARG(value)  (EEFC_FCR_FARG_M & ((value) << EEFC_FCR_FARG_S))
+#define EEFC_FCR_FKEY_S       24
+#define EEFC_FCR_FKEY_M       (0xff << EEFC_FCR_FKEY_S)   ///< Flash Writing Protection Key
+#define EEFC_FCR_FKEY(value)  (EEFC_FCR_FKEY_M & ((value) << EEFC_FCR_FKEY_S))
+/*\}*/
+
+/**
+ * Defines for bit fields in EEFC_FSR register.
+ */
+/*\{*/
+#define EEFC_FSR_FRDY    BV(0)  ///< Flash Ready Status
+#define EEFC_FSR_FCMDE   BV(1)  ///< Flash Command Error Status
+#define EEFC_FSR_FLOCKE  BV(2)  ///< Flash Lock Error Status
+/*\}*/
+
+#endif /* SAM3_FLASH_H */
diff --git a/bertos/cpu/cortex-m3/scripts/at91sam3n4_rom.ld b/bertos/cpu/cortex-m3/scripts/at91sam3n4_rom.ld
new file mode 100644
index 00000000..323f044a
--- /dev/null
+++ b/bertos/cpu/cortex-m3/scripts/at91sam3n4_rom.ld
@@ -0,0 +1,49 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \author Stefano Fedrigo <aleph@develer.com>
+ *
+ * \brief Linker script for AT91SAM3N4 Cortex M3 processor.
+ *
+ */
+
+/*
+ * Memory configuration for AT91SAM3N4.
+ */
+MEMORY
+{
+        rom(rx) : org = 0x0, len = 256k
+        ram(rwx) : org = 0x20000000, len = 24k
+}
+
+INCLUDE "bertos/cpu/cortex-m3/scripts/cortex-m3_rom.ld"
+
-- 
2.25.1