diff options
| author | Vincent Wan <vincent.wan@amd.com> | 2015-06-11 12:11:47 (GMT) |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-06-16 06:58:35 (GMT) |
| commit | b5e97d6e58617b9d6a3838ede6ccd3883035dbf3 (patch) | |
| tree | 47791ac78516114dffa0059235e92d0d105e5ac4 /drivers/mmc | |
| parent | bcb299947f5d77393d84f493b4857bcd7308e6dd (diff) | |
| download | linux-b5e97d6e58617b9d6a3838ede6ccd3883035dbf3.tar.xz | |
mmc: sdhci-pci: Change AMD SDHCI quirk application scope
Change this quirk to apply to AMD Carrizo platform.
Signed-off-by: Wan ZongShun <Vincent.Wan@amd.com>
Tested-by: Nath, Arindam <Arindam.Nath@amd.com>
Tested-by: Ramesh, Ramya <Ramya.Ramesh@amd.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index f208f20..94f54d2 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -724,14 +724,37 @@ static const struct sdhci_pci_fixes sdhci_rtsx = { .probe_slot = rtsx_probe_slot, }; +/*AMD chipset generation*/ +enum amd_chipset_gen { + AMD_CHIPSET_BEFORE_ML, + AMD_CHIPSET_CZ, + AMD_CHIPSET_NL, + AMD_CHIPSET_UNKNOWN, +}; + static int amd_probe(struct sdhci_pci_chip *chip) { struct pci_dev *smbus_dev; + enum amd_chipset_gen gen; smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL); + if (smbus_dev) { + gen = AMD_CHIPSET_BEFORE_ML; + } else { + smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, + PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL); + if (smbus_dev) { + if (smbus_dev->revision < 0x51) + gen = AMD_CHIPSET_CZ; + else + gen = AMD_CHIPSET_NL; + } else { + gen = AMD_CHIPSET_UNKNOWN; + } + } - if (smbus_dev && (smbus_dev->revision < 0x51)) { + if ((gen == AMD_CHIPSET_BEFORE_ML) || (gen == AMD_CHIPSET_CZ)) { chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD; chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200; } |