Some controller should do some configuration according to the selected
timing.
Signed-off-by: Ziyuan Xu <xzy...@rock-chips.com>
---
drivers/mmc/mmc.c | 7 +++++++
include/mmc.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index f5b2280..1b3652a 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -318,6 +318,12 @@ ulong mmc_bread(struct blk_desc *block_dev, lbaint_t
start, lbaint_t blkcnt,
return blkcnt;
}
+static void mmc_set_timing(struct mmc *mmc, uint timing)
+{
+ mmc->timing = timing;
+ mmc_set_ios(mmc);
+}
+
static int mmc_go_idle(struct mmc *mmc)
{
struct mmc_cmd cmd;
@@ -1734,6 +1740,7 @@ int mmc_start_init(struct mmc *mmc)
mmc->ddr_mode = 0;
mmc_set_bus_width(mmc, 1);
mmc_set_clock(mmc, 1);
+ mmc_set_timing(mmc, MMC_TIMING_LEGACY);
/* Reset the Card */
err = mmc_go_idle(mmc);
diff --git a/include/mmc.h b/include/mmc.h
index 0bae1a1..68b6790 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -434,6 +434,21 @@ struct mmc {
uint has_init;
int high_capacity;
uint bus_width;
+ uint timing;
+
+#define MMC_TIMING_LEGACY 0
+#define MMC_TIMING_MMC_HS 1
+#define MMC_TIMING_SD_HS 2
+#define MMC_TIMING_UHS_SDR12 3
+#define MMC_TIMING_UHS_SDR25 4
+#define MMC_TIMING_UHS_SDR50 5
+#define MMC_TIMING_UHS_SDR104 6
+#define MMC_TIMING_UHS_DDR50 7
+#define MMC_TIMING_MMC_DDR52 8
+#define MMC_TIMING_MMC_HS200 9
+#define MMC_TIMING_MMC_HS400 10
+#define MMC_TIMING_MMC_HS400ES 11
+
uint clock;
uint card_caps;
uint ocr;
@@ -493,6 +508,40 @@ enum mmc_hwpart_conf_mode {
MMC_HWPART_CONF_COMPLETE,
};
+static inline bool mmc_card_hs(struct mmc *mmc)
+{
+ return (mmc->timing == MMC_TIMING_MMC_HS) ||
+ (mmc->timing == MMC_TIMING_SD_HS);
+}
+
+static inline bool mmc_card_ddr(struct mmc *mmc)
+{
+ return (mmc->timing == MMC_TIMING_UHS_DDR50) ||
+ (mmc->timing == MMC_TIMING_MMC_DDR52) ||
+ (mmc->timing == MMC_TIMING_MMC_HS400) ||
+ (mmc->timing == MMC_TIMING_MMC_HS400ES);
+}
+
+static inline bool mmc_card_hs200(struct mmc *mmc)
+{
+ return mmc->timing == MMC_TIMING_MMC_HS200;
+}
+
+static inline bool mmc_card_ddr52(struct mmc *mmc)
+{
+ return mmc->timing == MMC_TIMING_MMC_DDR52;
+}
+
+static inline bool mmc_card_hs400(struct mmc *mmc)
+{
+ return mmc->timing == MMC_TIMING_MMC_HS400;
+}
+
+static inline bool mmc_card_hs400es(struct mmc *mmc)
+{
+ return mmc->timing == MMC_TIMING_MMC_HS400ES;
+}
+
struct mmc *mmc_create(const struct mmc_config *cfg, void *priv);
/**
--
2.7.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
