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mmc: add HS400 support

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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 <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Faiz Abbas <faiz_abbas@ti.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan
2018-08-10 14:07:54 +08:00
committed by Tom Rini
parent 51330c72f0
commit 3dd2626f48
3 changed files with 137 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/mmc.h
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@@ -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;