1 files changed, 14 insertions, 0 deletions
diff --git a/env/ext4.c b/env/ext4.c
index f823b69..e666f7b 100644
--- a/env/ext4.c
+++ b/env/ext4.c
@@ -41,7 +41,21 @@ __weak const char *env_ext4_get_intf(void)
 
 __weak const char *env_ext4_get_dev_part(void)
 {
+#ifdef CONFIG_MMC
+	static char *part_str;
+
+	if (!part_str) {
+		part_str = CONFIG_ENV_EXT4_DEVICE_AND_PART;
+		if (!strcmp(CONFIG_ENV_EXT4_INTERFACE, "mmc") && part_str[0] == ':') {
+			part_str = "0" CONFIG_ENV_EXT4_DEVICE_AND_PART;
+			part_str[0] += mmc_get_env_dev();
+		}
+	}
+
+	return part_str;
+#else
 	return (const char *)CONFIG_ENV_EXT4_DEVICE_AND_PART;
+#endif
 }
 
 static int env_ext4_save_buffer(env_t *env_new)