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| author | David Cohen <david.a.cohen@linux.intel.com> | 2013-10-01 13:18:15 -0700 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-11-13 19:02:03 +0100 |
| commit | b6ae6483e85c0cb9c26d8b0b0236a3f4ad21f34d (patch) | |
| tree | 1894c1d6b687488bbf8c7e643a79d70c464ff9a0 /drivers/mmc | |
| parent | 482c6cb2dfb40838d67b0ba844b4b3d0af0f3d20 (diff) | |
| download | lwn-b6ae6483e85c0cb9c26d8b0b0236a3f4ad21f34d.tar.gz lwn-b6ae6483e85c0cb9c26d8b0b0236a3f4ad21f34d.zip | |
mmc: sdhci-pci: add Intel Merrifield support
commit 8776a165d152d57a3a58895d55204614abe93d7f upstream.
Implement initial SDHCI Intel Merrifield support. This patch is based
on previous one from Yunpeng Gao <yunpeng.gao@intel.com>.
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 27ae563d0caa..689e655a122b 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -37,6 +37,7 @@ #define PCI_DEVICE_ID_INTEL_BYT_SDIO 0x0f15 #define PCI_DEVICE_ID_INTEL_BYT_SD 0x0f16 #define PCI_DEVICE_ID_INTEL_BYT_EMMC2 0x0f50 +#define PCI_DEVICE_ID_INTEL_MRFL_MMC 0x1190 /* * PCI registers @@ -359,6 +360,28 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { .own_cd_for_runtime_pm = true, }; +/* Define Host controllers for Intel Merrifield platform */ +#define INTEL_MRFL_EMMC_0 0 +#define INTEL_MRFL_EMMC_1 1 + +static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot) +{ + if ((PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_0) && + (PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_1)) + /* SD support is not ready yet */ + return -ENODEV; + + slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | + MMC_CAP_1_8V_DDR; + + return 0; +} + +static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = { + .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .probe_slot = intel_mrfl_mmc_probe_slot, +}; + /* O2Micro extra registers */ #define O2_SD_LOCK_WP 0xD3 #define O2_SD_MULTI_VCC3V 0xEE @@ -943,6 +966,13 @@ static const struct pci_device_id pci_ids[] = { }, { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_MRFL_MMC, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mrfl_mmc, + }, + { .vendor = PCI_VENDOR_ID_O2, .device = PCI_DEVICE_ID_O2_8120, .subvendor = PCI_ANY_ID, |