diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 65483fdea45b56ba431bd5a37a3891bdeed708c8..e0214316aedb5c3edebda22f97cfd7e5f3d50c8e 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -17,6 +17,7 @@ #include #include #include +#include #include @@ -84,7 +85,30 @@ static int ricoh_probe(struct sdhci_pci_chip *chip) if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG || chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY) chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET; + return 0; +} + +static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->caps = + ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT) + & SDHCI_TIMEOUT_CLK_MASK) | + + ((0x21 << SDHCI_CLOCK_BASE_SHIFT) + & SDHCI_CLOCK_BASE_MASK) | + SDHCI_TIMEOUT_CLK_UNIT | + SDHCI_CAN_VDD_330 | + SDHCI_CAN_DO_SDMA; + return 0; +} + +static int ricoh_mmc_resume(struct sdhci_pci_chip *chip) +{ + /* Apply a delay to allow controller to settle */ + /* Otherwise it becomes confused if card state changed + during suspend */ + msleep(500); return 0; } @@ -95,6 +119,15 @@ static const struct sdhci_pci_fixes sdhci_ricoh = { SDHCI_QUIRK_CLOCK_BEFORE_RESET, }; +static const struct sdhci_pci_fixes sdhci_ricoh_mmc = { + .probe_slot = ricoh_mmc_probe_slot, + .resume = ricoh_mmc_resume, + .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | + SDHCI_QUIRK_CLOCK_BEFORE_RESET | + SDHCI_QUIRK_NO_CARD_NO_RESET | + SDHCI_QUIRK_MISSING_CAPS +}; + static const struct sdhci_pci_fixes sdhci_ene_712 = { .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | SDHCI_QUIRK_BROKEN_DMA, @@ -373,6 +406,14 @@ static const struct pci_device_id pci_ids[] __devinitdata = { .driver_data = (kernel_ulong_t)&sdhci_ricoh, }, + { + .vendor = PCI_VENDOR_ID_RICOH, + .device = 0x843, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, + }, + { .vendor = PCI_VENDOR_ID_ENE, .device = PCI_DEVICE_ID_ENE_CB712_SD, diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index c6d1bd8d4ac43d917e2772f2242dcdea03aa6040..483b78eee3ac4e01527c8968ce94966b1507c5c9 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1687,7 +1687,8 @@ int sdhci_add_host(struct sdhci_host *host) host->version); } - caps = sdhci_readl(host, SDHCI_CAPABILITIES); + caps = (host->quirks & SDHCI_QUIRK_MISSING_CAPS) ? host->caps : + sdhci_readl(host, SDHCI_CAPABILITIES); if (host->quirks & SDHCI_QUIRK_FORCE_DMA) host->flags |= SDHCI_USE_SDMA; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index c8468134adc95db0dbfd5ec901ebf96930c22b84..b1839a315b8606e7a37e7a075c60704e605afe57 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -240,6 +240,8 @@ struct sdhci_host { #define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN (1<<25) /* Controller cannot support End Attribute in NOP ADMA descriptor */ #define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC (1<<26) +/* Controller is missing device caps. Use caps provided by host */ +#define SDHCI_QUIRK_MISSING_CAPS (1<<27) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ @@ -292,6 +294,8 @@ struct sdhci_host { struct timer_list timer; /* Timer for timeouts */ + unsigned int caps; /* Alternative capabilities */ + unsigned long private[0] ____cacheline_aligned; };