diff options
Diffstat (limited to 'common/cmd_mmc.c')
| -rw-r--r-- | common/cmd_mmc.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c index a6458037e..7335cdc75 100644 --- a/common/cmd_mmc.c +++ b/common/cmd_mmc.c @@ -91,6 +91,7 @@ enum mmc_state { MMC_INVALID, MMC_READ, MMC_WRITE, + MMC_ERASE, }; static void print_mmcinfo(struct mmc *mmc) { @@ -252,15 +253,24 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) state = MMC_READ; else if (strcmp(argv[1], "write") == 0) state = MMC_WRITE; + else if (strcmp(argv[1], "erase") == 0) + state = MMC_ERASE; 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 blk = simple_strtoul(argv[3], NULL, 16); - u32 cnt = simple_strtoul(argv[4], NULL, 16); - u32 n; + int idx = 2; + u32 blk, cnt, n; + void *addr; + + if (state != MMC_ERASE) { + addr = (void *)simple_strtoul(argv[idx], NULL, 16); + ++idx; + } else + addr = 0; + blk = simple_strtoul(argv[idx], NULL, 16); + cnt = simple_strtoul(argv[idx + 1], NULL, 16); if (!mmc) { printf("no mmc device at slot %x\n", curr_device); @@ -283,6 +293,9 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) n = mmc->block_dev.block_write(curr_device, blk, cnt, addr); break; + case MMC_ERASE: + n = mmc->block_dev.block_erase(curr_device, blk, cnt); + break; default: BUG(); } @@ -300,6 +313,7 @@ U_BOOT_CMD( "MMC sub system", "read addr blk# cnt\n" "mmc write addr blk# cnt\n" + "mmc erase blk# cnt\n" "mmc rescan\n" "mmc part - lists available partition on current mmc device\n" "mmc dev [dev] [part] - show or set current mmc device [partition]\n" |