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fix to calculate nandfirm size for mirrored image

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git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/twl_wrapsdk/trunk@254 4ee2a332-4b2b-5046-8439-1ba90f034370
This commit is contained in:
yutaka 2007-08-28 01:30:45 +00:00
parent bd3b3496bf
commit bc0141794e
1 changed files with 41 additions and 8 deletions
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49
build/tests/fatfs/nand_formatter_kmc/ARM7/src/main.c
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@ -255,18 +255,51 @@ void TwlSpMain(void)
arm9_size = *(u32*)(((u8*)block_buf)+0x2C);
arm7_ofs = *(u32*)(((u8*)block_buf)+0x30);
arm7_size = *(u32*)(((u8*)block_buf)+0x3C);
if (arm9_ofs == 0x800 || arm7_ofs == 0x800) // there is a duplicate header for mirroring
if (arm9_ofs == 0x400 || arm7_ofs == 0x400) // simple image
{
nandRtfsIo( 5, 3, (byte*)block_buf, 1, TRUE); // get header for mirroring image
/*
0x000 +-------------------+
| MBR |
0x200 +-------------------+
| Header (genuine) |
0x400 +-------------------+ <- arm9_ofs or arm7_ofs by Header (genuine)
| ARM7/ARM9 IMAGE |
I+0x400 +-------------------+ <- nand_firm_size
*/
nand_firm_size = (arm9_ofs < arm7_ofs ? arm7_ofs + arm7_size : arm9_ofs + arm9_size);
}
if (arm9_ofs == 0x800 || arm7_ofs == 0x800) // double header image
{
/*
0x000 +-------------------+
| MBR |
0x200 +-------------------+
| Header (genuine) |
0x400 +-------------------+
| Header (original) |
0x600 +-------------------+
| Header (mirrored) |
0x800 +-------------------+ <- arm9_ofs or arm7_ofs by Header (genuine)
| ARM7/ARM9 IMAGE |
| + reserved |
I+0x800 +-------------------+
| Header (original) |
I+0xA00 +-------------------+
| Header (mirrored) |
I+0xC00 +-------------------+ <- arm9_ofs or arm7_ofs by Header (mirroed)
| reserved for |
| ARM7/ARM9 IMAGE |
2*I+0xC00 +-------------------+ <- nand_firm_size
*/
u32 arm9_orig = arm9_ofs;
nandRtfsIo( 5, 3, (byte*)block_buf, 1, TRUE); // get header for mirrored image
arm9_ofs = *(u32*)(((u8*)block_buf)+0x20);
arm7_ofs = *(u32*)(((u8*)block_buf)+0x30);
nand_firm_size = (arm9_ofs - arm9_orig) * 2 + 0x400;
}
// DBG_PRINTF( "arm9: 0x%x, 0x%x\n", arm9_ofs, arm9_size);
// DBG_PRINTF( "arm7: 0x%x, 0x%x\n", arm7_ofs, arm7_size);
if( ((arm9_ofs + arm9_size) == arm7_ofs) && (arm9_ofs < arm7_ofs) &&
(arm9_size != 0) && (arm7_size != 0)) {
nand_firm_size = (arm9_ofs < arm7_ofs ? arm7_ofs + arm7_size : arm9_ofs + arm9_size);
if (nand_firm_size)
{
DBG_PRINTF( "nandfirm found. (size:0x%x bytes)\n", nand_firm_size);
nand_firm_size = (nand_firm_size / 1024 / 1024) +
(((nand_firm_size % (1024*1024)) != 0)? 1:0);