From: Vincent Wan <vincent.wan@amd.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: <linux-mmc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Arindam Nath <arindam.nath@amd.com>,
Huang Rui <ray.huang@amd.com>, Vincent Wan <vincent.wan@amd.com>
Subject: [PATCH] mmc: Add a quirk for AMD SD controller doesn't support HS200
Date: Tue, 4 Nov 2014 17:27:39 +0800 [thread overview]
Message-ID: <1415093259-5076-1-git-send-email-vincent.wan@amd.com> (raw)
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
reply other threads:[~2014-11-04 9:28 UTC|newest]
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