From 3dd2626f48af6f459b8bfb9ce7c6832b0606e813 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Fri, 10 Aug 2018 14:07:54 +0800 Subject: mmc: add HS400 support Add HS400 support. Selecting HS400 needs first select HS200 according to spec, so use a dedicated function for HS400. Add HS400 related macros. Remove the restriction of only using the low 6 bits of EXT_CSD_CARD_TYPE, using all the 8 bits. Signed-off-by: Peng Fan Cc: Jaehoon Chung Cc: Jean-Jacques Hiblot Cc: Stefano Babic Cc: Kishon Vijay Abraham I Cc: Faiz Abbas Cc: Marek Vasut Signed-off-by: Peng Fan --- include/mmc.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/mmc.h') diff --git a/include/mmc.h b/include/mmc.h index df4255b828..9b9cbedadc 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -64,6 +64,7 @@ #define MMC_MODE_HS_52MHz MMC_CAP(MMC_HS_52) #define MMC_MODE_DDR_52MHz MMC_CAP(MMC_DDR_52) #define MMC_MODE_HS200 MMC_CAP(MMC_HS_200) +#define MMC_MODE_HS400 MMC_CAP(MMC_HS_400) #define MMC_MODE_8BIT BIT(30) #define MMC_MODE_4BIT BIT(29) @@ -248,6 +249,10 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) /* SDR mode @1.2V I/O */ #define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \ EXT_CSD_CARD_TYPE_HS200_1_2V) +#define EXT_CSD_CARD_TYPE_HS400_1_8V BIT(6) +#define EXT_CSD_CARD_TYPE_HS400_1_2V BIT(7) +#define EXT_CSD_CARD_TYPE_HS400 (EXT_CSD_CARD_TYPE_HS400_1_8V | \ + EXT_CSD_CARD_TYPE_HS400_1_2V) #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ @@ -259,6 +264,7 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) #define EXT_CSD_TIMING_LEGACY 0 /* no high speed */ #define EXT_CSD_TIMING_HS 1 /* HS */ #define EXT_CSD_TIMING_HS200 2 /* HS200 */ +#define EXT_CSD_TIMING_HS400 3 /* HS400 */ #define EXT_CSD_BOOT_ACK_ENABLE (1 << 6) #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3) @@ -519,6 +525,7 @@ enum bus_mode { UHS_DDR50, UHS_SDR104, MMC_HS_200, + MMC_HS_400, MMC_MODES_END }; @@ -532,6 +539,10 @@ static inline bool mmc_is_mode_ddr(enum bus_mode mode) #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) else if (mode == UHS_DDR50) return true; +#endif +#if CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) + else if (mode == MMC_HS_400) + return true; #endif else return false; -- cgit