diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-pci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 0716dcffd51..deb607c52c0 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -142,6 +142,7 @@ static int jmicron_probe(struct sdhci_pci_chip *chip) if (chip->pdev->revision == 0) { chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_32BIT_DMA_SIZE | + SDHCI_QUIRK_32BIT_ADMA_SIZE | SDHCI_QUIRK_RESET_AFTER_REQUEST; } @@ -206,6 +207,22 @@ static void jmicron_enable_mmc(struct sdhci_host *host, int on) static int jmicron_probe_slot(struct sdhci_pci_slot *slot) { + if (slot->chip->pdev->revision == 0) { + u16 version; + + version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION); + version = (version & SDHCI_VENDOR_VER_MASK) >> + SDHCI_VENDOR_VER_SHIFT; + + /* + * Older versions of the chip have lots of nasty glitches + * in the ADMA engine. It's best just to avoid it + * completely. + */ + if (version < 0xAC) + slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA; + } + /* * The secondary interface requires a bit set to get the * interrupts. |