samsung: misc: add env default option to lcd menu

This change allows reset device environment to default without using u-boot
console, which is useful for system developers.

Signed-off-by: Inha Song <ideal.song@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

board/samsung/common/misc.c

@@ -122,6 +122,7 @@ mode_name[BOOT_MODE_EXIT + 1][2] = {
 	{"UMS", "ums"},
 	{"DFU", "dfu"},
 	{"GPT", "gpt"},
+	{"ENV", "env"},
 	{"EXIT", ""},
 };
 
@@ -132,6 +133,7 @@ mode_info[BOOT_MODE_EXIT + 1] = {
 	"mass storage",
 	"firmware update",
 	"restore",
+	"default",
 	"and run normal boot"
 };
 
@@ -142,6 +144,7 @@ mode_cmd[BOOT_MODE_EXIT + 1] = {
 	"ums 0 mmc 0",
 	"dfu 0 mmc 0",
 	"gpt write mmc 0 $partitions",
+	"env default -a; saveenv",
 	"",
 };
 

include/samsung/misc.h

@@ -16,6 +16,7 @@ enum {
 	BOOT_MODE_UMS,
 	BOOT_MODE_DFU,
 	BOOT_MODE_GPT,
+	BOOT_MODE_ENV,
 	BOOT_MODE_EXIT,
 };