提交 9107ebbf 编写于 作者: M Micky Ching 提交者: Chris Ball

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: NMicky Ching <micky_ching@realsil.com.cn>
Signed-off-by: NChris Ball <chris@printf.net>
上级 b13d1f0f
......@@ -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,
......@@ -731,6 +743,14 @@ static const struct pci_device_id pci_ids[] = {
.driver_data = (kernel_ulong_t)&sdhci_via,
},
{
.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,
......
......@@ -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? */
......
......@@ -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 */
......
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