-----Original Message----- From: Loic Poulain loic.poulain@linaro.org Sent: Thursday, January 26, 2023 6:24 PM To: sjg@chromium.org; peng.fan@nxp.com; jh80.chung@samsung.com Cc: u-boot@lists.denx.de; Loic Poulain loic.poulain@linaro.org Subject: [PATCH v2 1/3] mmc: Check support for TRIM operations
When secure/insecure TRIM operations are supported. When used as erase command argument it applies the erase operation to write blocks instead of erase groups.
Signed-off-by: Loic Poulain loic.poulain@linaro.org
Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Best Regards, Jaehoon Chung
v2: Add mmc unit test change to the series
drivers/mmc/mmc.c | 3 +++ include/mmc.h | 4 ++++ 2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 210703ea46..e5f5ccb5f4 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -2432,6 +2432,9 @@ static int mmc_startup_v4(struct mmc *mmc)
mmc->wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET];
- mmc->can_trim =
!!(ext_csd[EXT_CSD_SEC_FEATURE] & EXT_CSD_SEC_FEATURE_TRIM_EN);- return 0;
error: if (mmc->ext_csd) { diff --git a/include/mmc.h b/include/mmc.h index 571fa625d0..f6e23625ca 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -241,6 +241,7 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ #define EXT_CSD_BOOT_MULT 226 /* RO */ +#define EXT_CSD_SEC_FEATURE 231 /* RO */ #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ #define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
@@ -315,6 +316,8 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) #define EXT_CSD_WR_DATA_REL_USR (1 << 0) /* user data area WR_REL */ #define EXT_CSD_WR_DATA_REL_GP(x) (1 << ((x)+1)) /* GP part (x+1) WR_REL */
+#define EXT_CSD_SEC_FEATURE_TRIM_EN (1 << 4) /* Support secure & insecure trim */
#define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5)
@@ -687,6 +690,7 @@ struct mmc { uint tran_speed; uint legacy_speed; /* speed for the legacy mode provided by the card */ uint read_bl_len;
- bool can_trim;
#if CONFIG_IS_ENABLED(MMC_WRITE) uint write_bl_len; uint erase_grp_size; /* in 512-byte sectors */ -- 2.34.1