Messages in this thread Patch in this message | | | From | Vincent Wan <> | Subject | [PATCH] mmc: Add a quirk for AMD SD controller doesn't support HS200 | Date | Tue, 4 Nov 2014 17:27:39 +0800 |
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AMD SD controller support the SDR104 mode, but caps2 can not be promoted to support hs200 for eMMC.
Signed-off-by: Vincent Wan <vincent.wan@amd.com> --- drivers/mmc/host/sdhci-pci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 8f5c998..6b4e84c 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -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; } -- 1.8.1.2
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