now can compose images with ROMbox, too

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5509 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 15 insertions, 3 deletions

diff --git a/flash/make_firmware/make_firmware.c b/flash/make_firmware/make_firmware.c
index 220db4e5f1..ffc366fe5e 100644
--- a/flash/make_firmware/make_firmware.c
+++ b/flash/make_firmware/make_firmware.c
@@ -37,6 +37,7 @@
 #define SECTORSIZE 4096 
 
 #define BOOTLOAD_DEST 0x0FFFF500 // for the "normal" one
+#define FLASH_START  0x02000000
 #define BOOTLOAD_SCR 0x02000100
 #define ROCKBOX_DEST 0x09000000
 #define ROCKBOX_EXEC 0x09000200
@@ -130,6 +131,7 @@ UINT32 PlaceImage(char* filename, UINT32 pos, UINT8* pFirmware, UINT32 limit)
         FILE* pFile;
         UINT32 align;
         UINT32 flags;
+        UINT32 load_addr = ROCKBOX_DEST, exec_addr = ROCKBOX_EXEC; // defaults
 
         // magic file header for compressed files
         static const UINT8 magic[8] = { 0x00,0xe9,0x55,0x43,0x4c,0xff,0x01,0x1a };
@@ -151,7 +153,8 @@ UINT32 PlaceImage(char* filename, UINT32 pos, UINT8* pFirmware, UINT32 limit)
         fread(ucl_header, 1, sizeof(ucl_header), pFile);
         if (memcmp(magic, ucl_header, sizeof(magic)) == 0)
         {
-                if (ucl_header[12] != 0x2E) // check algorithm
+                if (ucl_header[12] != 0x2E // check algorithm
+                        && ucl_header[12] != 0x2B) // or uncompressed
                 {
                         printf("UCL compressed files must use algorithm 2e, not %d\n", ucl_header[12]);
                         printf("Generate with: uclpack --best --2e rockbox.bin %s\n", filename);
@@ -163,6 +166,15 @@ UINT32 PlaceImage(char* filename, UINT32 pos, UINT8* pFirmware, UINT32 limit)
                 {       // normal case
                         flags = 0x00000001; // flags for UCL compressed
                 }
+
+                if (ucl_header[12] == 0x2B) // uncompressed means "ROMbox", for direct flash execution
+                {
+                        UINT8 reset_vec[4];
+                        fread(reset_vec, 1, sizeof(reset_vec), pFile); // read the reset vector from image
+                        fseek(pFile, 0-sizeof(reset_vec), SEEK_CUR); // wind back
+                        load_addr = FLASH_START + pos + 16; // behind 16 byte header
+                        exec_addr = Read32(reset_vec);
+                }
         }
         else
         {
@@ -177,9 +189,9 @@ UINT32 PlaceImage(char* filename, UINT32 pos, UINT8* pFirmware, UINT32 limit)
         
         // write header
         align = (pos + 16 + size + SECTORSIZE-1) & ~(SECTORSIZE-1); // round up to next flash sector
-        Write32(pFirmware + pos, ROCKBOX_DEST); // load address
+        Write32(pFirmware + pos, load_addr); // load address
         Write32(pFirmware + pos + 4, align - (pos + 16)); // image size
-        Write32(pFirmware + pos + 8, ROCKBOX_EXEC); // execution address
+        Write32(pFirmware + pos + 8, exec_addr); // execution address
         Write32(pFirmware + pos + 12, flags); // compressed or not
         pos += 16;