diff options
| author | Micky Ching <micky_ching@realsil.com.cn> | 2014-02-21 11:40:35 +0100 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-02-22 19:19:40 +0100 |
| commit | 9107ebbf9652c033eb5dd10a6ea34a132db3cde1 (patch) | |
| tree | 7e5769085be6b0097bb4fde9d9fdbe4dd9bbf3a1 | |
| parent | mmc: omap: Add erase capability (diff) | |
| download | linux-9107ebbf9652c033eb5dd10a6ea34a132db3cde1.tar.xz linux-9107ebbf9652c033eb5dd10a6ea34a132db3cde1.zip | |
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>
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 20 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 | ||||
| -rw-r--r-- | include/linux/mmc/sdhci.h | 2 |
3 files changed, 24 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? */ diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 362927c48f97..7be12b883485 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -100,6 +100,8 @@ struct sdhci_host { #define SDHCI_QUIRK2_BROKEN_HOST_CONTROL (1<<5) /* Controller does not support HS200 */ #define SDHCI_QUIRK2_BROKEN_HS200 (1<<6) +/* Controller does not support DDR50 */ +#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ |