diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index c25639b839cd..5a77f188b503 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -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) }, |