mmc: show the erase group size and HC WP group size in mmcinfo output

This adds the erase group size and high-capacity WP group size to
mmcinfo's output. The erase group size is necessary to properly align
erase requests on eMMC. The high-capacity WP group size is necessary
to properly align partitions on eMMC.

Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>

diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index bcb03ea..18ed660 100644 (file)
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -95,9 +95,16 @@ static void print_mmcinfo(struct mmc *mmc)
        printf("Bus Width: %d-bit%s\n", mmc->bus_width,
                        mmc->ddr_mode ? " DDR" : "");
 
+       puts("Erase Group Size: ");
+       print_size(((u64)mmc->erase_grp_size) << 9, "\n");
+
        if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
                bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
                bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
+
+               puts("HC WP Group Size: ");
+               print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
+
                puts("User Capacity: ");
                print_size(mmc->capacity_user, usr_enh ? " ENH\n" : "\n");
                if (usr_enh) {
@@ -110,6 +117,7 @@ static void print_mmcinfo(struct mmc *mmc)
                print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
                puts("RPMB Capacity: ");
                print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
+
                for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
                        bool is_enh = has_enh &&
                                (mmc->part_attr & EXT_CSD_ENH_GP(i));