diff options
| author | Micky Ching <micky_ching@realsil.com.cn> | 2014-02-21 14:40:35 +0400 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-02-22 22:19:40 +0400 |
| commit | 9107ebbf9652c033eb5dd10a6ea34a132db3cde1 (patch) | |
| tree | 7e5769085be6b0097bb4fde9d9fdbe4dd9bbf3a1 /drivers | |
| parent | b13d1f0f9ad64bc498ced07344495ba27321419e (diff) | |
| download | linux-9107ebbf9652c033eb5dd10a6ea34a132db3cde1.tar.xz | |
mmc: sdhci: add support for realtek rts5250
Add support for realtek rts5250 pci card reader. The card reader has
some problems with DDR50 mode, so add a new quirks2 for broken ddr50.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 20 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 |
2 files changed, 22 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 0955777b6c7e..fdc612120362 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -610,6 +610,18 @@ static const struct sdhci_pci_fixes sdhci_via = { .probe = via_probe, }; +static int rtsx_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->mmc->caps2 |= MMC_CAP2_HS200; + return 0; +} + +static const struct sdhci_pci_fixes sdhci_rtsx = { + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_BROKEN_DDR50, + .probe_slot = rtsx_probe_slot, +}; + static const struct pci_device_id pci_ids[] = { { .vendor = PCI_VENDOR_ID_RICOH, @@ -732,6 +744,14 @@ static const struct pci_device_id pci_ids[] = { }, { + .vendor = PCI_VENDOR_ID_REALTEK, + .device = 0x5250, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_rtsx, + }, + + { .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_MRST_SD0, .subvendor = PCI_ANY_ID, diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9ddef4763541..8958edc03e04 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3020,7 +3020,8 @@ int sdhci_add_host(struct sdhci_host *host) } else if (caps[1] & SDHCI_SUPPORT_SDR50) mmc->caps |= MMC_CAP_UHS_SDR50; - if (caps[1] & SDHCI_SUPPORT_DDR50) + if ((caps[1] & SDHCI_SUPPORT_DDR50) && + !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) mmc->caps |= MMC_CAP_UHS_DDR50; /* Does the host need tuning for SDR50? */ |