diff options
| -rw-r--r-- | cmd/mmc.c | 17 | ||||
| -rw-r--r-- | doc/usage/cmd/mmc.rst | 6 |
2 files changed, 18 insertions, 5 deletions
diff --git a/cmd/mmc.c b/cmd/mmc.c index 9a841c25d3d..c0c23ee24b6 100644 --- a/cmd/mmc.c +++ b/cmd/mmc.c @@ -473,18 +473,26 @@ static int do_mmc_erase(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct mmc *mmc; + struct disk_partition info; u32 blk, cnt, n; - if (argc != 3) + if (argc < 2 || argc > 3) return CMD_RET_USAGE; - blk = hextoul(argv[1], NULL); - cnt = hextoul(argv[2], NULL); - mmc = init_mmc_device(curr_device, false); if (!mmc) return CMD_RET_FAILURE; + if (argc == 3) { + blk = hextoul(argv[1], NULL); + cnt = hextoul(argv[2], NULL); + } else if (part_get_info_by_name(mmc_get_blk_desc(mmc), argv[1], &info) >= 0) { + blk = info.start; + cnt = info.size; + } else { + return CMD_RET_FAILURE; + } + printf("MMC erase: dev # %d, block # %d, count %d ... ", curr_device, blk, cnt); @@ -1290,6 +1298,7 @@ U_BOOT_CMD( "mmc swrite addr blk#\n" #endif "mmc erase blk# cnt\n" + "mmc erase partname\n" "mmc rescan [mode]\n" "mmc part - lists available partition on current mmc device\n" "mmc dev [dev] [part] [mode] - show or set current mmc device [partition] and set mode\n" diff --git a/doc/usage/cmd/mmc.rst b/doc/usage/cmd/mmc.rst index 5a64400eeae..55391fda24c 100644 --- a/doc/usage/cmd/mmc.rst +++ b/doc/usage/cmd/mmc.rst @@ -15,6 +15,7 @@ Synopsis mmc read addr blk# cnt mmc write addr blk# cnt mmc erase blk# cnt + mmc erase partname mmc rescan [mode] mmc part mmc dev [dev] [part] [mode] @@ -44,12 +45,15 @@ The 'mmc write' command writes raw data to MMC device from memory address with b cnt block count -The 'mmc erase' command erases *cnt* blocks on the MMC device starting at block *blk#*. +The 'mmc erase' command erases *cnt* blocks on the MMC device starting at block *blk#* or +the entire partition specified by *partname*. blk# start block offset cnt block count + partname + partition name The 'mmc rescan' command scans the available MMC device. |