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[uboot-xbust] fixed the [src] overflow when

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it calculate by block-num * blokc-size

Signed-off-by: Xiangfu Liu <xiangfu@sharism.cc>
This commit is contained in:
Xiangfu Liu 2010-10-25 11:32:24 +08:00
parent 2f3b1982ce
commit d0d0131a0e
1 changed files with 14 additions and 15 deletions
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29
package/uboot-xburst/files/drivers/mmc/jz_mmc.c
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@ -558,8 +558,8 @@ int mmc_block_read(u8 *dst, ulong src, ulong len)
if (retval = mmc_unpack_r1(&request, &r1, 0))
goto exit;
if (sd2_0)
src /= len;
if (!sd2_0)
src *= mmcinfo.block_len;
mmc_send_cmd(&request, MMC_CMD_READ_SINGLE_BLOCK, src, 1, len, RESPONSE_R1, dst);
if (retval = mmc_unpack_r1(&request, &r1, 0))
@ -571,24 +571,23 @@ exit:
ulong mmc_bread(int dev_num, ulong blkstart, ulong blkcnt, ulong *dst)
{
if (!mmc_ready) {
printf("Please initial the MMC first\n");
return -1;
}
if (!mmc_ready) {
printf("Please initial the MMC first\n");
return -1;
}
int i = 0;
ulong src = blkstart * mmcinfo.block_len;
ulong dst_tmp = dst;
int i = 0;
ulong dst_tmp = dst;
for (i = 0; i < blkcnt; i++) {
if ((mmc_block_read((uchar *)(dst_tmp), src, mmcinfo.block_len)) < 0)
for (i = 0; i < blkcnt; i++) {
if ((mmc_block_read((uchar *)(dst_tmp), blkstart, mmcinfo.block_len)) < 0)
return -1;
dst_tmp += mmcinfo.block_len;
src += mmcinfo.block_len;
dst_tmp += mmcinfo.block_len;
blkstart++;
}
return i;
return i;
}
int mmc_select_card(void)
@ -1165,7 +1164,7 @@ u32 mmc_tran_speed(u8 ts)
}
void mmc_send_cmd(struct mmc_request *request, int cmd, u32 arg,
u16 nob, u16 block_len, enum mmc_rsp_t rtype, u8 *buffer)
u16 nob, u16 block_len, enum mmc_rsp_t rtype, u8 *buffer)
{
request->cmd = cmd;
request->arg = arg;