diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2024-05-31 08:36:34 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-09-05 12:12:51 -0600 |
| commit | 150481e5baf861802aab34069405e5dcbcbb106f (patch) | |
| tree | 5ca60690e32abcc79009040de4687e672a2b22c0 /drivers/mmc/mmc.c | |
| parent | 8746aa0f5da740c593cef95b7c28386716f128d6 (diff) | |
mmc: allow use of hardware partition names for mmc partconf
eMMC v4+ devices have hardware partitions that are accessed via the
PARTITION_CONFIG (Extended CSD Register 179) PARTITION_ACCESS
and BOOT_PARTITION_ENABLE fields defined as:
bit 5:3: BOOT_PARTITION_ENABLE
0x0: Device not boot enabled (default)
0x1: Boot Area partition 1 enabled for boot
0x2: Boot Area partition 2 enabled for boot
0x3-0x6: Reserved
0x7: User area enabled for boot
bit 2:0 PARTITION_ACCESS
0x0: No access to boot partition (default)
0x1: Boot Area partition 1
0x2: Boot Area partition 2
0x3: Replay Protected Memory Block (RPMB)
0x4: Access to General Purpose partition 1
0x5: Access to General Purpose partition 2
0x6: Access to General Purpose partition 3
0x7: Access to General Purpose partition 4
Add char arrays to provide names for these values.
Use these names which displaying or setting the PARTITION_CONFIG
register via the 'mmc partconf' command.
Before:
u-boot=> mmc partconf 2 1 1 0 && mmc partconf 2
EXT_CSD[179], PARTITION_CONFIG:
BOOT_ACK: 0x1
BOOT_PARTITION_ENABLE: 0x2
PARTITION_ACCESS: 0x0
After:
u-boot=> mmc partconf 2 1 1 0 && mmc partconf 2
EXT_CSD[179], PARTITION_CONFIG:
BOOT_ACK: 0x1
BOOT_PARTITION_ENABLE: 0x1 (boot0)
PARTITION_ACCESS: 0x0 (user)
u-boot=> mmc partconf 2 1 boot1 0 && mmc partconf 2
EXT_CSD[179], PARTITION_CONFIG:
BOOT_ACK: 0x1
BOOT_PARTITION_ENABLE: 0x2 (boot1)
PARTITION_ACCESS: 0x0 (user)
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 7b068c71ff3..bfbf47a7300 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -29,6 +29,41 @@ #define DEFAULT_CMD6_TIMEOUT_MS 500 +/** + * names of emmc BOOT_PARTITION_ENABLE values + * + * Boot Area Partitions - name consistent with Linux + */ +const char *emmc_boot_part_names[] = { + "default", /* EMMC_BOOT_PART_DEFAULT */ + "boot0", /* EMMC_BOOT_PART_BOOT1 */ + "boot1", /* EMMC_BOOT_PART_BOOT2 */ + "", + "", + "", + "", + "user", /* EMMC_BOOT_PART_USER */ +}; + +/** + * names of emmc 'hardware partitions' consistent with: + * - value used in mmc_switch() + * - value used by PARTITION_CONFIG PARTITION_ACCESS field + * + * Boot Area Partitions - name consistent with Linux + * General Perpose Partitions - name consistent with 'mmc hwpartition' usage + */ +const char *emmc_hwpart_names[] = { + "user", /* EMMC_HWPART_DEFAULT */ + "boot0", /* EMMC_HWPART_BOOT1 */ + "boot1", /* EMMC_HWPART_BOOT2 */ + "rpmb", /* EMMC_HWPART_RPMB */ + "gp1", /* EMMC_HWPART_GP1 */ + "gp2", /* EMMC_HWPART_GP2 */ + "gp3", /* EMMC_HWPART_GP3 */ + "gp4", /* EMMC_HWPART_GP4 */ +}; + static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); #if !CONFIG_IS_ENABLED(DM_MMC) |