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MMC: unify mmc read and write operation

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mmc read and write command has so many in common, unfiy those two to
force consistency across the those two.

Signed-off-by: Lei Wen <leiwen@marvell.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Lei Wen 2011-06-22 17:03:30 +00:00 committed by Andy Fleming
parent 83800959a8
commit 6be95ccf9f
1 changed files with 36 additions and 33 deletions
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69
common/cmd_mmc.c
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@ -87,6 +87,11 @@ U_BOOT_CMD(
);
#else /* !CONFIG_GENERIC_MMC */
enum mmc_state {
MMC_INVALID,
MMC_READ,
MMC_WRITE,
};
static void print_mmcinfo(struct mmc *mmc)
{
printf("Device: %s\n", mmc->name);
@ -144,6 +149,8 @@ U_BOOT_CMD(
int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
enum mmc_state state;
if (argc < 2)
return cmd_usage(cmdtp);
@ -239,53 +246,49 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
curr_device, mmc->part_num);
return 0;
} else if (strcmp(argv[1], "read") == 0) {
}
if (strcmp(argv[1], "read") == 0)
state = MMC_READ;
else if (strcmp(argv[1], "write") == 0)
state = MMC_WRITE;
else
state = MMC_INVALID;
if (state != MMC_INVALID) {
struct mmc *mmc = find_mmc_device(curr_device);
void *addr = (void *)simple_strtoul(argv[2], NULL, 16);
u32 cnt = simple_strtoul(argv[4], NULL, 16);
u32 n;
u32 blk = simple_strtoul(argv[3], NULL, 16);
struct mmc *mmc = find_mmc_device(curr_device);
if (!mmc) {
printf("no mmc device at slot %x\n", curr_device);
return 1;
}
printf("\nMMC read: dev # %d, block # %d, count %d ... ",
curr_device, blk, cnt);
mmc_init(mmc);
n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
/* flush cache after read */
flush_cache((ulong)addr, cnt * 512); /* FIXME */
printf("%d blocks read: %s\n",
n, (n==cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
} else if (strcmp(argv[1], "write") == 0) {
void *addr = (void *)simple_strtoul(argv[2], NULL, 16);
u32 cnt = simple_strtoul(argv[4], NULL, 16);
u32 n;
struct mmc *mmc = find_mmc_device(curr_device);
int blk = simple_strtoul(argv[3], NULL, 16);
if (!mmc) {
printf("no mmc device at slot %x\n", curr_device);
return 1;
}
printf("\nMMC write: dev # %d, block # %d, count %d ... ",
curr_device, blk, cnt);
printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
argv[1], curr_device, blk, cnt);
mmc_init(mmc);
n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
switch (state) {
case MMC_READ:
n = mmc->block_dev.block_read(curr_device, blk,
cnt, addr);
/* flush cache after read */
flush_cache((ulong)addr, cnt * 512); /* FIXME */
break;
case MMC_WRITE:
n = mmc->block_dev.block_write(curr_device, blk,
cnt, addr);
break;
default:
BUG();
}
printf("%d blocks written: %s\n",
n, (n == cnt) ? "OK" : "ERROR");
printf("%d blocks %s: %s\n",
n, argv[1], (n == cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
}