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[PATCH] mmc: sdhci-brcmstb: Remove incorrect capability

From: Jaedon Shin <hidden>
Date: 2016-08-19 02:30:43
Subsystem: multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) broadcom brcmstb driver, secure digital host controller interface (sdhci) driver, the rest · Maintainers: Ulf Hansson, Kamal Dasu, Al Cooper, Adrian Hunter, Linus Torvalds

Removes incorrect 64-bit ADMA capability on Broadcom MIPS based SoCs.
The MIPS based BRCMSTB SDHCI host controllers are using ADMA only, but
the several chipsets have a incorrect capability about ADMA 64-bit.

Signed-off-by: Jaedon Shin <redacted>
---
 drivers/mmc/host/sdhci-brcmstb.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index cce10fe3e19e..683bfc2af512 100644
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/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 (IS_ENABLED(CONFIG_MIPS))
+		host->caps &= ~SDHCI_CAN_64BIT;
 	host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
 	host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_SDR104 |
 			SDHCI_SUPPORT_DDR50);
-- 
2.9.3
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