cmd: mmc: allow to write protect single boot partition

add arguments for mmc wp to assign which boot partition to protect.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/cmd/mmc.c b/cmd/mmc.c
index 63bf69b..f7b02b3 100644 (file)
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -1048,6 +1048,7 @@ static int do_mmc_boot_wp(struct cmd_tbl *cmdtp, int flag,
 {
        int err;
        struct mmc *mmc;
+       int part;
 
        mmc = init_mmc_device(curr_device, false);
        if (!mmc)
@@ -1056,7 +1057,14 @@ static int do_mmc_boot_wp(struct cmd_tbl *cmdtp, int flag,
                printf("It is not an eMMC device\n");
                return CMD_RET_FAILURE;
        }
-       err = mmc_boot_wp(mmc);
+
+       if (argc == 2) {
+               part = dectoul(argv[1], NULL);
+               err = mmc_boot_wp_single_partition(mmc, part);
+       } else {
+               err = mmc_boot_wp(mmc);
+       }
+
        if (err)
                return CMD_RET_FAILURE;
        printf("boot areas protected\n");
@@ -1066,7 +1074,7 @@ static int do_mmc_boot_wp(struct cmd_tbl *cmdtp, int flag,
 static struct cmd_tbl cmd_mmc[] = {
        U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
        U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
-       U_BOOT_CMD_MKENT(wp, 1, 0, do_mmc_boot_wp, "", ""),
+       U_BOOT_CMD_MKENT(wp, 2, 0, do_mmc_boot_wp, "", ""),
 #if CONFIG_IS_ENABLED(MMC_WRITE)
        U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
        U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
@@ -1140,7 +1148,11 @@ U_BOOT_CMD(
        "    [MMC_LEGACY, MMC_HS, SD_HS, MMC_HS_52, MMC_DDR_52, UHS_SDR12, UHS_SDR25,\n"
        "    UHS_SDR50, UHS_DDR50, UHS_SDR104, MMC_HS_200, MMC_HS_400, MMC_HS_400_ES]\n"
        "mmc list - lists available devices\n"
-       "mmc wp - power on write protect boot partitions\n"
+       "mmc wp [PART] - power on write protect boot partitions\n"
+       "  arguments:\n"
+       "   PART - [0|1]\n"
+       "       : 0 - first boot partition, 1 - second boot partition\n"
+       "         if not assigned, write protect all boot partitions\n"
 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
        "mmc hwpartition <USER> <GP> <MODE> - does hardware partitioning\n"
        "  arguments (sizes in 512-byte blocks):\n"