mmc: zynqmp: Add HS200 modes support for ZynqMP
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.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c
index 1f6d053..5b6d525 100644
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -32,12 +32,21 @@
};
#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 @@
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 @@
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;