From 2ca5b8ddc6f70d77a51851ba5e5cd0d39c27dd88 Mon Sep 17 00:00:00 2001 From: Christopher Covington Date: Wed, 2 Nov 2016 11:11:27 -0500 Subject: PCI: Add MCFG quirks for Qualcomm QDF2432 host controller The Qualcomm Technologies QDF2432 SoC does not support accesses smaller than 32 bits to the PCI configuration space. Register the appropriate quirk. [bhelgaas: add QCOM_ECAM32 macro, ifdef for ACPI and PCI_QUIRKS] Signed-off-by: Christopher Covington Signed-off-by: Bjorn Helgaas --- drivers/pci/ecam.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/pci/ecam.c') diff --git a/drivers/pci/ecam.c b/drivers/pci/ecam.c index 43ed08dd8b01..2fee61bb6559 100644 --- a/drivers/pci/ecam.c +++ b/drivers/pci/ecam.c @@ -162,3 +162,15 @@ struct pci_ecam_ops pci_generic_ecam_ops = { .write = pci_generic_config_write, } }; + +#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS) +/* ECAM ops for 32-bit access only (non-compliant) */ +struct pci_ecam_ops pci_32b_ops = { + .bus_shift = 20, + .pci_ops = { + .map_bus = pci_ecam_map_bus, + .read = pci_generic_config_read32, + .write = pci_generic_config_write32, + } +}; +#endif -- cgit v1.2.3