diff --git a/cmd/mmc.c b/cmd/mmc.c
index 9a841c2..c0c23ee 100644
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -473,17 +473,25 @@
 			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 @@
 	"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 5a64400..55391fd 100644
--- a/doc/usage/cmd/mmc.rst
+++ b/doc/usage/cmd/mmc.rst
@@ -15,6 +15,7 @@
     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 @@
     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.