cmd: mmc: add mmc partconf read capability
This patch allows to show the EXT_CSD[179] partition_config
register info, just by specifying the dev param:
U-Boot> mmc partconf 0
EXT_CSD[179], PARTITION_CONFIG:
BOOT_ACK: 0x0
BOOT_PARTITION_ENABLE: 0x0
PARTITION_ACCESS: 0x0
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/drivers/mmc/mmc_boot.c b/drivers/mmc/mmc_boot.c
index ac6f56f..6d77ce9 100644
--- a/drivers/mmc/mmc_boot.c
+++ b/drivers/mmc/mmc_boot.c
@@ -100,10 +100,19 @@
*/
int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
{
- return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
- EXT_CSD_BOOT_ACK(ack) |
- EXT_CSD_BOOT_PART_NUM(part_num) |
- EXT_CSD_PARTITION_ACCESS(access));
+ int ret;
+ u8 part_conf;
+
+ part_conf = EXT_CSD_BOOT_ACK(ack) |
+ EXT_CSD_BOOT_PART_NUM(part_num) |
+ EXT_CSD_PARTITION_ACCESS(access);
+
+ ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
+ part_conf);
+ if (!ret)
+ mmc->part_config = part_conf;
+
+ return ret;
}
/*