mmc: uniphier-sd: Add support for quirks

Check if the OF match has any associated data and if so, use those
data as the controller quirks, otherwise fallback to the old method
of reading the controller version register to figure out the quirks.
This allows us to supply controller quirks on controllers which ie.
do not have version register.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c
index c5cd4c9..c69f79b 100644 (file)
--- a/drivers/mmc/uniphier-sd.c
+++ b/drivers/mmc/uniphier-sd.c
@@ -751,6 +751,7 @@ static int uniphier_sd_probe(struct udevice *dev)
        struct uniphier_sd_plat *plat = dev_get_platdata(dev);
        struct uniphier_sd_priv *priv = dev_get_priv(dev);
        struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+       const u32 quirks = dev_get_driver_data(dev);
        fdt_addr_t base;
        struct clk clk;
        int ret;
@@ -802,18 +803,22 @@ static int uniphier_sd_probe(struct udevice *dev)
                return -EINVAL;
        }
 
+       if (quirks) {
+               priv->caps = quirks;
+       } else {
+               priv->version = uniphier_sd_readl(priv, UNIPHIER_SD_VERSION) &
+                                                       UNIPHIER_SD_VERSION_IP;
+               dev_dbg(dev, "version %x\n", priv->version);
+               if (priv->version >= 0x10) {
+                       priv->caps |= UNIPHIER_SD_CAP_DMA_INTERNAL;
+                       priv->caps |= UNIPHIER_SD_CAP_DIV1024;
+               }
+       }
+
        if (fdt_get_property(gd->fdt_blob, dev_of_offset(dev), "non-removable",
                             NULL))
                priv->caps |= UNIPHIER_SD_CAP_NONREMOVABLE;
 
-       priv->version = uniphier_sd_readl(priv, UNIPHIER_SD_VERSION) &
-                                                       UNIPHIER_SD_VERSION_IP;
-       dev_dbg(dev, "version %x\n", priv->version);
-       if (priv->version >= 0x10) {
-               priv->caps |= UNIPHIER_SD_CAP_DMA_INTERNAL;
-               priv->caps |= UNIPHIER_SD_CAP_DIV1024;
-       }
-
        uniphier_sd_host_init(priv);
 
        plat->cfg.voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34;
@@ -828,7 +833,7 @@ static int uniphier_sd_probe(struct udevice *dev)
 }
 
 static const struct udevice_id uniphier_sd_match[] = {
-       { .compatible = "socionext,uniphier-sdhc" },
+       { .compatible = "socionext,uniphier-sdhc", .data = 0 },
        { /* sentinel */ }
 };