diff options
| -rw-r--r-- | drivers/mmc/uniphier-sd.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c index f6682231a2..013089299d 100644 --- a/drivers/mmc/uniphier-sd.c +++ b/drivers/mmc/uniphier-sd.c @@ -132,17 +132,24 @@ struct uniphier_sd_priv { #define UNIPHIER_SD_CAP_NONREMOVABLE BIT(0) /* Nonremovable e.g. eMMC */ #define UNIPHIER_SD_CAP_DMA_INTERNAL BIT(1) /* have internal DMA engine */ #define UNIPHIER_SD_CAP_DIV1024 BIT(2) /* divisor 1024 is available */ +#define UNIPHIER_SD_CAP_64BIT BIT(3) /* Controller is 64bit */ }; static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, const u32 reg) { - return readl(priv->regbase + reg); + if (priv->caps & UNIPHIER_SD_CAP_64BIT) + return readl(priv->regbase + (reg << 1)); + else + return readl(priv->regbase + reg); } static void uniphier_sd_writel(struct uniphier_sd_priv *priv, const u32 val, const u32 reg) { - writel(val, priv->regbase + reg); + if (priv->caps & UNIPHIER_SD_CAP_64BIT) + writel(val, priv->regbase + (reg << 1)); + else + writel(val, priv->regbase + reg); } static dma_addr_t __dma_map_single(void *ptr, size_t size, |