From 877c1a5f79c6984bbe3f2924234c08e2f4f1acd5 Mon Sep 17 00:00:00 2001 From: Tuan Phan Date: Thu, 6 Aug 2020 14:57:34 -0700 Subject: PCI/ACPI: Add Ampere Altra SOC MCFG quirk Ampere Altra SOC supports only 32-bit ECAM reads. Add an MCFG quirk for the platform. Link: https://lore.kernel.org/r/1596751055-12316-1-git-send-email-tuanphan@os.amperecomputing.com Signed-off-by: Tuan Phan Signed-off-by: Bjorn Helgaas --- drivers/acpi/pci_mcfg.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/acpi/pci_mcfg.c') diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c index c8ef3bb5aa00..7ddd57abadd1 100644 --- a/drivers/acpi/pci_mcfg.c +++ b/drivers/acpi/pci_mcfg.c @@ -142,6 +142,26 @@ static struct mcfg_fixup mcfg_quirks[] = { XGENE_V2_ECAM_MCFG(4, 0), XGENE_V2_ECAM_MCFG(4, 1), XGENE_V2_ECAM_MCFG(4, 2), + +#define ALTRA_ECAM_QUIRK(rev, seg) \ + { "Ampere", "Altra ", rev, seg, MCFG_BUS_ANY, &pci_32b_read_ops } + + ALTRA_ECAM_QUIRK(1, 0), + ALTRA_ECAM_QUIRK(1, 1), + ALTRA_ECAM_QUIRK(1, 2), + ALTRA_ECAM_QUIRK(1, 3), + ALTRA_ECAM_QUIRK(1, 4), + ALTRA_ECAM_QUIRK(1, 5), + ALTRA_ECAM_QUIRK(1, 6), + ALTRA_ECAM_QUIRK(1, 7), + ALTRA_ECAM_QUIRK(1, 8), + ALTRA_ECAM_QUIRK(1, 9), + ALTRA_ECAM_QUIRK(1, 10), + ALTRA_ECAM_QUIRK(1, 11), + ALTRA_ECAM_QUIRK(1, 12), + ALTRA_ECAM_QUIRK(1, 13), + ALTRA_ECAM_QUIRK(1, 14), + ALTRA_ECAM_QUIRK(1, 15), }; static char mcfg_oem_id[ACPI_OEM_ID_SIZE]; -- cgit v1.2.3