diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-tegra.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-tegra.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index f11db8337cce..20ce81b57d32 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -28,6 +28,10 @@ #include "sdhci-pltfm.h" /* Tegra SDHOST controller vendor register definitions */ +#define SDHCI_TEGRA_VENDOR_CLOCK_CTRL 0x100 +#define SDHCI_CLOCK_CTRL_PADPIPE_CLKEN_OVERRIDE BIT(3) +#define SDHCI_CLOCK_CTRL_SPI_MODE_CLKEN_OVERRIDE BIT(2) + #define SDHCI_TEGRA_VENDOR_MISC_CTRL 0x120 #define SDHCI_MISC_CTRL_ENABLE_SDR104 0x8 #define SDHCI_MISC_CTRL_ENABLE_SDR50 0x10 @@ -125,7 +129,7 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_tegra *tegra_host = pltfm_host->priv; const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data; - u32 misc_ctrl; + u32 misc_ctrl, clk_ctrl; sdhci_reset(host, mask); @@ -145,6 +149,10 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask) misc_ctrl &= ~SDHCI_MISC_CTRL_ENABLE_SDR104; sdhci_writew(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL); + clk_ctrl = sdhci_readl(host, SDHCI_TEGRA_VENDOR_CLOCK_CTRL); + clk_ctrl &= ~SDHCI_CLOCK_CTRL_SPI_MODE_CLKEN_OVERRIDE; + sdhci_writel(host, clk_ctrl, SDHCI_TEGRA_VENDOR_CLOCK_CTRL); + tegra_host->ddr_signaling = false; } |