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authorDongdong Liu <liudongdong3@huawei.com>2016-12-01 00:45:35 -0600
committerBjorn Helgaas <helgaas@kernel.org>2016-12-06 13:45:49 -0600
commit5f00f1a0178cf52928366a5e1f376a65f1f3f389 (patch)
tree94a3a7b9cdfae44cd1410920f3111f893a2295cb /drivers/acpi/pci_mcfg.c
parent2ca5b8ddc6f70d77a51851ba5e5cd0d39c27dd88 (diff)
downloadlinux-5f00f1a0178cf52928366a5e1f376a65f1f3f389.tar.bz2
PCI: Add MCFG quirks for HiSilicon Hip05/06/07 host controllers
The PCIe controller in Hip05/Hip06/Hip07 SoCs is not completely ECAM-compliant. It is non-ECAM only for the RC bus config space; for any other bus underneath the root bus it does support ECAM access. Add specific quirks for PCI config space accessors. This involves: 1. New initialization call hisi_pcie_init() to obtain RC base addresses from PNP0C02 at the root of the ACPI namespace (under \_SB). 2. New entry in common quirk array. [bhelgaas: move to pcie-hisi.c and change Makefile/ifdefs so quirk doesn't depend on CONFIG_PCI_HISI] Signed-off-by: Dongdong Liu <liudongdong3@huawei.com> Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/acpi/pci_mcfg.c')
-rw-r--r--drivers/acpi/pci_mcfg.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
index cee33b078d3d..dd162248c3ee 100644
--- a/drivers/acpi/pci_mcfg.c
+++ b/drivers/acpi/pci_mcfg.c
@@ -62,6 +62,18 @@ static struct mcfg_fixup mcfg_quirks[] = {
QCOM_ECAM32(5),
QCOM_ECAM32(6),
QCOM_ECAM32(7),
+
+#define HISI_QUAD_DOM(table_id, seg, ops) \
+ { "HISI ", table_id, 0, (seg) + 0, MCFG_BUS_ANY, ops }, \
+ { "HISI ", table_id, 0, (seg) + 1, MCFG_BUS_ANY, ops }, \
+ { "HISI ", table_id, 0, (seg) + 2, MCFG_BUS_ANY, ops }, \
+ { "HISI ", table_id, 0, (seg) + 3, MCFG_BUS_ANY, ops }
+ HISI_QUAD_DOM("HIP05 ", 0, &hisi_pcie_ops),
+ HISI_QUAD_DOM("HIP06 ", 0, &hisi_pcie_ops),
+ HISI_QUAD_DOM("HIP07 ", 0, &hisi_pcie_ops),
+ HISI_QUAD_DOM("HIP07 ", 4, &hisi_pcie_ops),
+ HISI_QUAD_DOM("HIP07 ", 8, &hisi_pcie_ops),
+ HISI_QUAD_DOM("HIP07 ", 12, &hisi_pcie_ops),
};
static char mcfg_oem_id[ACPI_OEM_ID_SIZE];