From f9ee3eab528d2d21c33584bfb86ed1ebf317cb09 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 4 Oct 2010 15:25:11 +0100 Subject: [PATCH] mmc: sdhci: Add Moorestown device support This adds the basic identifiers. Due to the various chip quirks it's not enough to make MRST support very useful for earlier steppings but that can follow. (I'm currently trying to verify which steps actually matter outside Intel so I can avoid unneeded stuff going upstream) [Extracted from original development] Signed-off-by: JiebingLi [Folds in fixes] Signed-off-by: Chuanxiao Dong Signed-off-by: Alan Cox Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-pci.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index ec4b81d..55746ba 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -145,6 +145,29 @@ static const struct sdhci_pci_fixes sdhci_cafe = { SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, }; +/* + * ADMA operation is disabled for Moorestown platform due to + * hardware bugs. + */ +static int mrst_hc1_probe(struct sdhci_pci_chip *chip) +{ + /* + * slots number is fixed here for MRST as SDIO3 is never used and has + * hardware bugs. + */ + chip->num_slots = 1; + return 0; +} + +static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = { + .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, +}; + +static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1 = { + .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT, + .probe = mrst_hc1_probe, +}; + static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = { .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, }; @@ -504,6 +527,22 @@ static const struct pci_device_id pci_ids[] __devinitdata = { { .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_MRST_SD0, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_MRST_SD1, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_MFD_SD, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, -- 2.7.4