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mmc: sdhci-pci: enable the clear transfer mode register quirk for AMD sdhci 

This patch is to enable the quirk for AMD sdhci requiring transfer
mode register need to be cleared for commands without data

Signed-off-by: Vincent Wan <vincent.wan@amd.com>
Signed-off-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
wifi-calibration
Vincent Wan 2014-11-05 14:09:14 +08:00 committed by Ulf Hansson
parent 9b8ffea6ef
commit d44f88da42
1 changed files with 26 additions and 1 deletions
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27
drivers/mmc/host/sdhci-pci.c
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@ -645,6 +645,23 @@ static const struct sdhci_pci_fixes sdhci_rtsx = {
.probe_slot = rtsx_probe_slot,
};
static int amd_probe(struct sdhci_pci_chip *chip)
{
struct pci_dev *smbus_dev;
smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
if (smbus_dev && (smbus_dev->revision < 0x51))
chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
return 0;
}
static const struct sdhci_pci_fixes sdhci_amd = {
.probe = amd_probe,
};
static const struct pci_device_id pci_ids[] = {
{
.vendor = PCI_VENDOR_ID_RICOH,
@ -1044,7 +1061,15 @@ static const struct pci_device_id pci_ids[] = {
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_o2,
},
{
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_ANY_ID,
.class = PCI_CLASS_SYSTEM_SDHCI << 8,
.class_mask = 0xFFFF00,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = (kernel_ulong_t)&sdhci_amd,
},
{ /* Generic SD host controller */
PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
},