This patch adds HS200 suuport for ZynqMP and enables
the same for ZC1751 DC1 board which has eMMC on it.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.palad...@xilinx.com>
---
configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig | 1 +
drivers/mmc/zynq_sdhci.c | 25 ++++++++++++++++--------
2 files changed, 18 insertions(+), 8 deletions(-)
diff --git a/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
b/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
index f5a3334..96abf61 100644
--- a/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
+++ b/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
@@ -54,6 +54,7 @@ CONFIG_DM_I2C=y
CONFIG_SYS_I2C_CADENCE=y
CONFIG_MISC=y
CONFIG_DM_MMC=y
+CONFIG_MMC_HS200_SUPPORT=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_ZYNQ=y
CONFIG_SPI_FLASH=y
diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index f99731f..32c2dc6 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -32,12 +32,21 @@ struct arasan_sdhci_priv {
};
#if defined(CONFIG_ARCH_ZYNQMP)
+#define MMC_HS200_BUS_SPEED 5
+
static const u8 mode2timing[] = {
- [UHS_SDR12] = UHS_SDR12_BUS_SPEED,
- [UHS_SDR25] = UHS_SDR25_BUS_SPEED,
- [UHS_SDR50] = UHS_SDR50_BUS_SPEED,
- [UHS_SDR104] = UHS_SDR104_BUS_SPEED,
- [UHS_DDR50] = UHS_DDR50_BUS_SPEED,
+ [MMC_LEGACY] = UHS_SDR12_BUS_SPEED,
+ [SD_LEGACY] = UHS_SDR12_BUS_SPEED,
+ [MMC_HS] = HIGH_SPEED_BUS_SPEED,
+ [SD_HS] = HIGH_SPEED_BUS_SPEED,
+ [MMC_HS_52] = HIGH_SPEED_BUS_SPEED,
+ [MMC_DDR_52] = HIGH_SPEED_BUS_SPEED,
+ [UHS_SDR12] = UHS_SDR12_BUS_SPEED,
+ [UHS_SDR25] = UHS_SDR25_BUS_SPEED,
+ [UHS_SDR50] = UHS_SDR50_BUS_SPEED,
+ [UHS_DDR50] = UHS_DDR50_BUS_SPEED,
+ [UHS_SDR104] = UHS_SDR104_BUS_SPEED,
+ [MMC_HS_200] = MMC_HS200_BUS_SPEED,
};
#define SDHCI_HOST_CTRL2 0x3E
@@ -160,9 +169,6 @@ static void arasan_sdhci_set_tapdelay(struct sdhci_host
*host)
struct mmc *mmc = (struct mmc *)host->mmc;
u8 uhsmode;
- if (!IS_SD(mmc))
- return;
-
uhsmode = mode2timing[mmc->selected_mode];
if (uhsmode >= UHS_SDR25_BUS_SPEED)
@@ -175,6 +181,9 @@ static void arasan_sdhci_set_control_reg(struct sdhci_host
*host)
struct mmc *mmc = (struct mmc *)host->mmc;
u32 reg;
+ if (!IS_SD(mmc))
+ return;
+
if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) {
reg = sdhci_readw(host, SDHCI_HOST_CTRL2);
reg |= SDHCI_18V_SIGNAL;
--
2.7.4
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