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>
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@ -610,6 +610,18 @@ static const struct sdhci_pci_fixes sdhci_via = {
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.probe = via_probe,
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};
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static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
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{
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slot->host->mmc->caps2 |= MMC_CAP2_HS200;
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return 0;
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}
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static const struct sdhci_pci_fixes sdhci_rtsx = {
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.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
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SDHCI_QUIRK2_BROKEN_DDR50,
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.probe_slot = rtsx_probe_slot,
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};
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static const struct pci_device_id pci_ids[] = {
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{
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.vendor = PCI_VENDOR_ID_RICOH,
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@ -731,6 +743,14 @@ static const struct pci_device_id pci_ids[] = {
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.driver_data = (kernel_ulong_t)&sdhci_via,
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},
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{
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.vendor = PCI_VENDOR_ID_REALTEK,
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.device = 0x5250,
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.subvendor = PCI_ANY_ID,
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.subdevice = PCI_ANY_ID,
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.driver_data = (kernel_ulong_t)&sdhci_rtsx,
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},
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{
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.vendor = PCI_VENDOR_ID_INTEL,
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.device = PCI_DEVICE_ID_INTEL_MRST_SD0,
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@ -3020,7 +3020,8 @@ int sdhci_add_host(struct sdhci_host *host)
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} else if (caps[1] & SDHCI_SUPPORT_SDR50)
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mmc->caps |= MMC_CAP_UHS_SDR50;
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if (caps[1] & SDHCI_SUPPORT_DDR50)
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if ((caps[1] & SDHCI_SUPPORT_DDR50) &&
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!(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50))
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mmc->caps |= MMC_CAP_UHS_DDR50;
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/* Does the host need tuning for SDR50? */
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@ -100,6 +100,8 @@ struct sdhci_host {
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#define SDHCI_QUIRK2_BROKEN_HOST_CONTROL (1<<5)
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/* Controller does not support HS200 */
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#define SDHCI_QUIRK2_BROKEN_HS200 (1<<6)
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/* Controller does not support DDR50 */
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#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7)
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int irq; /* Device IRQ */
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void __iomem *ioaddr; /* Mapped address */
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