mmc: zynq_sdhci: Update quirk if 1.8v switching not supported

Update quirk if 1.8 voltage switching is not supported
on boards by reading the property "no-1-8-v" from device
tree.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@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 c8699513c461713e2bbe2e064714d347cf7ce741..4a02cca2b76c9fc3a1aa1aab1fde59e875ace03c 100644 (file)
--- a/drivers/mmc/zynq_sdhci.c
+++ b/drivers/mmc/zynq_sdhci.c
@@ -33,6 +33,7 @@ struct arasan_sdhci_priv {
        struct sdhci_host *host;
        u8 deviceid;
        u8 bank;
+       u8 no_1p8;
 };
 
 #if defined(CONFIG_ARCH_ZYNQMP)
@@ -173,6 +174,9 @@ static int arasan_sdhci_probe(struct udevice *dev)
        host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
 #endif
 
+       if (priv->no_1p8)
+               host->quirks |= SDHCI_QUIRK_NO_1_8_V;
+
        ret = sdhci_setup_cfg(&plat->cfg, host, CONFIG_ZYNQ_SDHCI_MAX_FREQ,
                              CONFIG_ZYNQ_SDHCI_MIN_FREQ);
        host->mmc = &plat->mmc;
@@ -205,6 +209,10 @@ static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
                                        "xlnx,device_id", -1);
        priv->bank = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
                                    "xlnx,mio_bank", -1);
+       if (fdt_get_property(gd->fdt_blob, dev->of_offset, "no-1-8-v", NULL))
+               priv->no_1p8 = 1;
+       else
+               priv->no_1p8 = 0;
 
        return 0;
 }