RT72064. cortexm3: add some more comments, fix-up alignment

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>

board/stm/stm3220g-eval/board.c

@@ -63,7 +63,7 @@ int misc_init_r(void)
 }
 
 /*
- * Setup dynamic RAM.
+ * Setup external RAM.
  */
 int dram_init(void)
 {

cpu/arm_cortexm3/cmd_cptf.c

@@ -23,6 +23,14 @@
 #include <string.h>
 #include "envm.h"
 
+/*
+ * Base address and the length of buffer in internal RAM, which
+ * we use as a source for buffer to be written to eNVM.
+ * Size of this buffer is set in the configuration file, address
+ * (position within internal RAM) is calculated automatically, at
+ * linking stage. Thus, the appropriate symbols are exported from
+ * the linker script *.lds.
+ */
 extern char	_mem_ram_buf_base, _mem_ram_buf_size;
 
 #define SOC_RAM_BUFFER_BASE	(ulong)(&_mem_ram_buf_base)

cpu/arm_cortexm3/cpu.c

@@ -55,7 +55,7 @@ int arch_cpu_init(void)
 #elif defined(CONFIG_SYS_STM32F2)
 	gd->bd->bi_arch_number = MACH_TYPE_STM32F2;
 #else
-# error "Unknown Cortex-M3 SOC."
+# error "Unsupported Cortex-M3 SOC."
 #endif
 
 	/*

cpu/arm_cortexm3/start.c

@@ -20,6 +20,11 @@
 #include <string.h>
 #include "wdt.h"
 
+ /*
+ * FIXME: move to the appropriate header
+ */
+unsigned char cortex_m3_irq_vec_get(void);
+
 /*
  * Declare symbols used in the start-up code
  */
@@ -39,8 +44,6 @@ extern char _bss_end;
 void _start(void);
 void default_isr(void);
 
-unsigned char cortex_m3_irq_vec_get(void);
-
 extern void start_armboot(void);
 
 /*

include/configs/a2f-actel-dev-brd.h

@@ -92,13 +92,14 @@
 /*
  * Memory layout configuration
  */
-#define CONFIG_MEM_NVM_BASE		(0x00000000)
+#define CONFIG_MEM_NVM_BASE		0x00000000
 #define CONFIG_MEM_NVM_LEN		(256 * 1024)
-#define CONFIG_MEM_RAM_BASE		(0x20000000)
-#define CONFIG_MEM_RAM_LEN		 (16 * 1024)
-#define CONFIG_MEM_RAM_BUF_LEN		 (32 * 1024)
-#define CONFIG_MEM_MALLOC_LEN		 (12 * 1024)
-#define CONFIG_MEM_STACK_LEN		  (4 * 1024)
+
+#define CONFIG_MEM_RAM_BASE		0x20000000
+#define CONFIG_MEM_RAM_LEN		(16 * 1024)
+#define CONFIG_MEM_RAM_BUF_LEN		(32 * 1024)
+#define CONFIG_MEM_MALLOC_LEN		(12 * 1024)
+#define CONFIG_MEM_STACK_LEN		(4 * 1024)
 
 /*
  * malloc() pool size

include/configs/a2f-hoermann-brd.h

@@ -88,13 +88,14 @@
 /*
  * Memory layout configuration
  */
-#define CONFIG_MEM_NVM_BASE		(0x00000000)
+#define CONFIG_MEM_NVM_BASE		0x00000000
 #define CONFIG_MEM_NVM_LEN		(256 * 1024)
-#define CONFIG_MEM_RAM_BASE		(0x20000000)
-#define CONFIG_MEM_RAM_LEN		 (16 * 1024)
-#define CONFIG_MEM_RAM_BUF_LEN		 (32 * 1024)
-#define CONFIG_MEM_MALLOC_LEN		 (12 * 1024)
-#define CONFIG_MEM_STACK_LEN		  (4 * 1024)
+
+#define CONFIG_MEM_RAM_BASE		0x20000000
+#define CONFIG_MEM_RAM_LEN		(16 * 1024)
+#define CONFIG_MEM_RAM_BUF_LEN		(32 * 1024)
+#define CONFIG_MEM_MALLOC_LEN		(12 * 1024)
+#define CONFIG_MEM_STACK_LEN		(4 * 1024)
 
 /*
  * malloc() pool size

include/configs/a2f-lnx-evb.h

@@ -89,13 +89,14 @@
 /*
  * Memory layout configuration
  */
-#define CONFIG_MEM_NVM_BASE		(0x00000000)
+#define CONFIG_MEM_NVM_BASE		0x00000000
 #define CONFIG_MEM_NVM_LEN		(256 * 1024)
-#define CONFIG_MEM_RAM_BASE		(0x20000000)
-#define CONFIG_MEM_RAM_LEN		 (16 * 1024)
-#define CONFIG_MEM_RAM_BUF_LEN		 (32 * 1024)
-#define CONFIG_MEM_MALLOC_LEN		 (12 * 1024)
-#define CONFIG_MEM_STACK_LEN		  (4 * 1024)
+
+#define CONFIG_MEM_RAM_BASE		0x20000000
+#define CONFIG_MEM_RAM_LEN		(16 * 1024)
+#define CONFIG_MEM_RAM_BUF_LEN		(32 * 1024)
+#define CONFIG_MEM_MALLOC_LEN		(12 * 1024)
+#define CONFIG_MEM_STACK_LEN		(4 * 1024)
 
 /*
  * malloc() pool size

include/configs/stm3220g-eval.h

@@ -82,13 +82,14 @@
 /*
  * Memory layout configuration
  */
-#define CONFIG_MEM_NVM_BASE		(0x00000000)
+#define CONFIG_MEM_NVM_BASE		0x00000000
 #define CONFIG_MEM_NVM_LEN		(1024 * 1024)
-#define CONFIG_MEM_RAM_BASE		(0x20000000)
-#define CONFIG_MEM_RAM_LEN		 (16 * 1024)
-#define CONFIG_MEM_RAM_BUF_LEN		 (32 * 1024)
-#define CONFIG_MEM_MALLOC_LEN		 (12 * 1024)
-#define CONFIG_MEM_STACK_LEN		  (4 * 1024)
+
+#define CONFIG_MEM_RAM_BASE		0x20000000
+#define CONFIG_MEM_RAM_LEN		(16 * 1024)
+#define CONFIG_MEM_RAM_BUF_LEN		(32 * 1024)
+#define CONFIG_MEM_MALLOC_LEN		(12 * 1024)
+#define CONFIG_MEM_STACK_LEN		(4 * 1024)
 
 /*
  * malloc() pool size