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Code Issues Releases Activity

[sdmmc] Change internal read/write retries

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This can fix busy errors when writing to sd cards.
Additionally it now returns properly on success
This commit is contained in:
Kostas Missos 2018-05-29 02:30:43 +03:00
parent 3877eddc3e
commit 391c28d6a2
2 changed files with 18 additions and 6 deletions
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4
ipl/main.c
View file

@ -867,8 +867,8 @@ int dump_emmc_part(char *sd_path, sdmmc_storage_t *storage, emmc_part_t *part)
EPRINTFARGS("Error reading %d blocks @ LBA %08X from eMMC (try %d), retrying...", EPRINTFARGS("Error reading %d blocks @ LBA %08X from eMMC (try %d), retrying...",
num, lba_curr, ++retryCount); num, lba_curr, ++retryCount);
sleep(500000); sleep(150000);
if (retryCount >= 10) if (retryCount >= 3)
{ {
gfx_con_setfontsz(&gfx_con, 16); gfx_con_setfontsz(&gfx_con, 16);
EPRINTFARGS("\nFailed to read %d blocks @ LBA %08X\nfrom eMMC. Aborting..\n", EPRINTFARGS("\nFailed to read %d blocks @ LBA %08X\nfrom eMMC. Aborting..\n",

20
ipl/sdmmc.c
View file

@ -165,15 +165,27 @@ static int _sdmmc_storage_readwrite(sdmmc_storage_t *storage, u32 sector, u32 nu
while (num_sectors) while (num_sectors)
{ {
u32 blkcnt = 0; u32 blkcnt = 0;
//Retry once on error. //Retry 9 times on error.
if (!_sdmmc_storage_readwrite_ex(storage, &blkcnt, sector, MIN(num_sectors, 0xFFFF), bbuf, is_write)) u32 retries = 10;
if (!_sdmmc_storage_readwrite_ex(storage, &blkcnt, sector, MIN(num_sectors, 0xFFFF), bbuf, is_write)) do
return 0; {
if (_sdmmc_storage_readwrite_ex(storage, &blkcnt, sector, MIN(num_sectors, 0xFFFF), bbuf, is_write))
goto out;
else
retries--;
sleep(500000);
} while (retries);
return 0;
out:;
DPRINTF("readwrite: %08X\n", blkcnt); DPRINTF("readwrite: %08X\n", blkcnt);
sector += blkcnt; sector += blkcnt;
num_sectors -= blkcnt; num_sectors -= blkcnt;
bbuf += 512 * blkcnt; bbuf += 512 * blkcnt;
} }
return 1;
} }
int sdmmc_storage_read(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf) int sdmmc_storage_read(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf)