rtl8195am - move region headers to 0xb000 and 0xc000

The new layout is as follows:

0x000000 - 0x008000  => bootloader
0x008000 - 0x00b000  => system sectors
0x00b000 - 0x00c000  => region1 header
0x00c000 - 0x00d000  => region2 header
0x00d000 - 0x010000  => reserved
0x010000 - 0x040000  => mbed file system
0x040000 - 0x120000  => region1 image
0x120000 - 0x200000  => region2 image

This is to ensure when daplink erases sections, both regions' headers
are erased properly.

Author: chrisyang

targets/TARGET_Realtek/TARGET_AMEBA/ota_api.c

@@ -23,24 +23,24 @@
 
 static flash_t flash_obj;
 
-void OTA_ReadHeader(uint32_t base, imginfo_t *img)
+void OTA_ReadHeader(uint32_t addr, imginfo_t *img)
 {
     uint32_t epoch_hi, epoch_lo;
 
-    if (base != OTA_REGION1_BASE || base != OTA_REGION2_BASE) {
+    if (addr != OTA_REGION1_HEADER || addr != OTA_REGION2_HEADER) {
         return;
     }
 
-    flash_ext_read_word(&flash_obj, base + OTA_TAG_OFS, &img->tag);
-    flash_ext_read_word(&flash_obj, base + OTA_VER_OFS, &img->ver);
-    flash_ext_read_word(&flash_obj, base + OTA_EPOCH_OFS, &epoch_hi);
-    flash_ext_read_word(&flash_obj, base + OTA_EPOCH_OFS + 4, &epoch_lo);
+    flash_ext_read_word(&flash_obj, addr + OTA_TAG_OFS, &img->tag);
+    flash_ext_read_word(&flash_obj, addr + OTA_VER_OFS, &img->ver);
+    flash_ext_read_word(&flash_obj, addr + OTA_EPOCH_OFS, &epoch_hi);
+    flash_ext_read_word(&flash_obj, addr + OTA_EPOCH_OFS + 4, &epoch_lo);
     img->timestamp = ((uint64_t)epoch_hi << 32) | (uint64_t) epoch_lo;
 
-    flash_ext_read_word(&flash_obj, base + OTA_SIZE_OFS, &img->size);
-    flash_ext_stream_read(&flash_obj, base + OTA_HASH_OFS, 32, img->hash);
-    flash_ext_stream_read(&flash_obj, base + OTA_CAMPAIGN_OFS, 16, img->campaign);
-    flash_ext_read_word(&flash_obj, base + OTA_CRC32_OFS, &img->crc32);
+    flash_ext_read_word(&flash_obj, addr + OTA_SIZE_OFS, &img->size);
+    flash_ext_stream_read(&flash_obj, addr + OTA_HASH_OFS, 32, img->hash);
+    flash_ext_stream_read(&flash_obj, addr + OTA_CAMPAIGN_OFS, 16, img->campaign);
+    flash_ext_read_word(&flash_obj, addr + OTA_CRC32_OFS, &img->crc32);
 }
 
 bool OTA_CheckHeader(imginfo_t *img)
@@ -61,9 +61,9 @@ bool OTA_CheckHeader(imginfo_t *img)
     return true;
 }
 
-void OTA_GetImageInfo(uint32_t base, imginfo_t *img)
+void OTA_GetImageInfo(uint32_t header, imginfo_t *img)
 {
-    OTA_ReadHeader(base, img);
+    OTA_ReadHeader(header, img);
 
     if (!OTA_CheckHeader(img)) {
         img->timestamp = 0;
@@ -77,8 +77,8 @@ uint32_t OTA_GetUpdateBase(void)
 {
     imginfo_t img1, img2;
 
-    OTA_GetImageInfo(OTA_REGION1_BASE, &img1);
-    OTA_GetImageInfo(OTA_REGION2_BASE, &img2);
+    OTA_GetImageInfo(OTA_REGION1_HEADER, &img1);
+    OTA_GetImageInfo(OTA_REGION2_HEADER, &img2);
 
     if (img1.valid && img2.valid) {
         if (img1.timestamp < img2.timestamp) {

targets/TARGET_Realtek/TARGET_AMEBA/ota_api.h

@@ -22,17 +22,20 @@
 #define FLASH_SECTOR_SIZE    0x1000
 #define FLASH_SECTOR_MASK    ~(FLASH_SECTOR_SIZE - 1)
 
+#define OTA_REGION1_HEADER  0x0b000
+#define OTA_REGION2_HEADER  0x0c000
+#define OTA_REGION2_BASE    0x120000
 #define OTA_REGION1_BASE    0x40000
 #define OTA_REGION2_BASE    0x120000
 #define OTA_REGION1_SIZE    0xe0000
 #define OTA_REGION2_SIZE    0xe0000
 #define OTA_REGION_SIZE     0xe0000
-#define OTA_MBED_FS_BASE    0xb000
+#define OTA_MBED_FS_BASE    0x10000
+#define OTA_MBED_FS_SIZE    0x30000
 
 #define OTA_CRC32_LEN       0x44
 #define OTA_HEADER_LEN      0x48
 
-#define OTA_HEADER_OFS      0x0
 #define OTA_TAG_OFS         0x0
 #define OTA_VER_OFS         0x4
 #define OTA_EPOCH_OFS       0x8
@@ -57,14 +60,16 @@ typedef struct imginfo_s {
     uint8_t campaign[16];
     uint32_t crc32;
     bool valid;
+    uint32_t header_addr;
+    uint32_t image_addr;
 } imginfo_t;
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 extern void OTA_GetImageInfo(uint32_t base, imginfo_t *info);
-extern uint32_t OTA_GetUpdateBase(void);
+extern uint32_t OTA_GetUpdateRegion(void);
 
 extern uint32_t OTA_UpdateHeader(uint32_t base, imginfo_t *img);
 extern uint32_t OTA_UpdateImage(uint32_t base, uint32_t offset, uint32_t len, uint8_t *data);

tools/bootloaders/REALTEK_RTL8195AM/ram_1.bin

@@ -255,7 +255,9 @@ def create_daplink(image_bin, ram1_bin, ram2_bin):
 
     output = open(image_bin, "wb")
     append_image_file(ram1_bin, output)
+    append_image_file(ram2_bin, output)
 
+    output.seek(0xb000)
     line = ""
     for key in ['tag', 'ver', 'timestamp', 'size', 'hash', 'campaign']:
         line += RAM2_HEADER[key]
@@ -264,7 +266,6 @@ def create_daplink(image_bin, ram1_bin, ram2_bin):
     RAM2_HEADER['crc32'] = format_number(crc32_checksum(line), 8)
 
     output.write(RAM2_HEADER['crc32'])
-    append_image_file(ram2_bin, output)
     output.close()
 
 # ----------------------------