mmc: sdhci-brcmstb: Fix incorrect capability

Clear incorrect SDHCI_CAN_64BIT capability on Broadcom MIPS based SoCs.
The MIPS based SoCs are using ADMA only, but the several SoCs have the
incorrect capability bit about ADMA 64-bit. The "brcm,bcm7425-sdhci" is
compatible string for MIPS based SoC.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-brcmstb.c

@@ -98,6 +98,8 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev)
 	 * properties through mmc_of_parse().
 	 */
 	host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+	if (of_device_is_compatible(pdev->dev.of_node, "brcm,bcm7425-sdhci"))
+		host->caps &= ~SDHCI_CAN_64BIT;
 	host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
 	host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_SDR104 |
 			SDHCI_SUPPORT_DDR50);
@@ -121,6 +123,7 @@ err_clk:
 
 static const struct of_device_id sdhci_brcm_of_match[] = {
 	{ .compatible = "brcm,bcm7425-sdhci" },
+	{ .compatible = "brcm,bcm7445-sdhci" },
 	{},
 };
 MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);