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mmc: Add a quirk for AMD SD controller doesn't support HS200

PATCH New Vincent Wan 1 participant 1 message Nov 4, 2014

Subsystems (2)
MMC, SD and SDIO Secure digital host controller interface (SDHCI) driver
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Vincent Wan

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PATCH 1/1 mmc: Add a quirk for AMD SD controller doesn't support HS200

AMD SD controller support the SDR104 mode, but caps2 can not be promoted to support hs200 for eMMC.

Signed-off-by Vincent Wan <[email protected]>
---
 drivers/mmc/host/sdhci-pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/mmc/host/sdhci-pci.c +3 -1
index 8f5c998..6b4e84c 100644
@@ -652,8 +652,10 @@ static int amd_probe(struct sdhci_pci_chip *chip)
 	smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
 			PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
 
-	if (smbus_dev && (smbus_dev->revision < 0x51))
+	if (smbus_dev && (smbus_dev->revision < 0x51)) {
 		chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
+		chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
+	}
 
 	return 0;
 }
Signature · 1 line
1.8.1.2