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author | Angelo Dureghello <angelo@sysam.it> | 2017-08-01 14:27:10 +0200 |
---|---|---|
committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-08-17 17:00:11 +0900 |
commit | bdb6099666933491ce393e52132e05604da91b1a (patch) | |
tree | 127076ebc6d7f6a4725d013e8f5d3967ec95016d | |
parent | e7881d85a94b2e35b12a163c3af671057e9ca5e8 (diff) | |
download | u-boot-bdb6099666933491ce393e52132e05604da91b1a.zip u-boot-bdb6099666933491ce393e52132e05604da91b1a.tar.gz u-boot-bdb6099666933491ce393e52132e05604da91b1a.tar.bz2 |
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>
-rw-r--r-- | cmd/mmc.c | 38 | ||||
-rw-r--r-- | drivers/mmc/mmc_boot.c | 17 | ||||
-rw-r--r-- | include/mmc.h | 4 |
3 files changed, 49 insertions, 10 deletions
@@ -643,6 +643,28 @@ static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag, printf("EMMC RPMB partition Size %d MB\n", rpmbsize); return CMD_RET_SUCCESS; } + +static int mmc_partconf_print(struct mmc *mmc) +{ + u8 ack, access, part; + + if (mmc->part_config == MMCPART_NOAVAILABLE) { + printf("No part_config info for ver. 0x%x\n", mmc->version); + return CMD_RET_FAILURE; + } + + access = EXT_CSD_EXTRACT_PARTITION_ACCESS(mmc->part_config); + ack = EXT_CSD_EXTRACT_BOOT_ACK(mmc->part_config); + part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config); + + printf("EXT_CSD[179], PARTITION_CONFIG:\n" + "BOOT_ACK: 0x%x\n" + "BOOT_PARTITION_ENABLE: 0x%x\n" + "PARTITION_ACCESS: 0x%x\n", ack, part, access); + + return CMD_RET_SUCCESS; +} + static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { @@ -650,13 +672,10 @@ static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag, struct mmc *mmc; u8 ack, part_num, access; - if (argc != 5) + if (argc != 2 && argc != 5) return CMD_RET_USAGE; dev = simple_strtoul(argv[1], NULL, 10); - ack = simple_strtoul(argv[2], NULL, 10); - part_num = simple_strtoul(argv[3], NULL, 10); - access = simple_strtoul(argv[4], NULL, 10); mmc = init_mmc_device(dev, false); if (!mmc) @@ -667,6 +686,13 @@ static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag, return CMD_RET_FAILURE; } + if (argc == 2) + return mmc_partconf_print(mmc); + + ack = simple_strtoul(argv[2], NULL, 10); + part_num = simple_strtoul(argv[3], NULL, 10); + access = simple_strtoul(argv[4], NULL, 10); + /* acknowledge to be sent during boot operation */ return mmc_set_part_conf(mmc, ack, part_num, access); } @@ -832,8 +858,8 @@ U_BOOT_CMD( " - Set the BOOT_BUS_WIDTH field of the specified device\n" "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n" " - Change sizes of boot and RPMB partitions of specified device\n" - "mmc partconf dev boot_ack boot_partition partition_access\n" - " - Change the bits of the PARTITION_CONFIG field of the specified device\n" + "mmc partconf dev [boot_ack boot_partition partition_access]\n" + " - Show or change the bits of the PARTITION_CONFIG field of the specified device\n" "mmc rst-function dev value\n" " - Change the RST_n_FUNCTION field of the specified device\n" " WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n" 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_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode) */ 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; } /* diff --git a/include/mmc.h b/include/mmc.h index 16a5c20..010ebe0 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -221,6 +221,10 @@ #define EXT_CSD_BOOT_PART_NUM(x) (x << 3) #define EXT_CSD_PARTITION_ACCESS(x) (x << 0) +#define EXT_CSD_EXTRACT_BOOT_ACK(x) (((x) >> 6) & 0x1) +#define EXT_CSD_EXTRACT_BOOT_PART(x) (((x) >> 3) & 0x7) +#define EXT_CSD_EXTRACT_PARTITION_ACCESS(x) ((x) & 0x7) + #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3) #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2) #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x) |