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@@ -29,6 +29,8 @@
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#include "sdhci-pltfm.h"
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+#define SDMMC_MC1R 0x204
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+#define SDMMC_MC1R_DDR BIT(3)
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#define SDMMC_CACR 0x230
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#define SDMMC_CACR_CAPWREN BIT(0)
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#define SDMMC_CACR_KEY (0x46 << 8)
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@@ -103,11 +105,18 @@ static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode,
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sdhci_set_power_noreg(host, mode, vdd);
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}
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+void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing)
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+{
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+ if (timing == MMC_TIMING_MMC_DDR52)
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+ sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R);
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+ sdhci_set_uhs_signaling(host, timing);
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+}
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+
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static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
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.set_clock = sdhci_at91_set_clock,
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.set_bus_width = sdhci_set_bus_width,
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.reset = sdhci_reset,
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- .set_uhs_signaling = sdhci_set_uhs_signaling,
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+ .set_uhs_signaling = sdhci_at91_set_uhs_signaling,
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.set_power = sdhci_at91_set_power,
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};
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