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| author | Bjorn Helgaas <bhelgaas@google.com> | 2017-09-05 19:58:03 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-09-07 15:52:43 +0200 |
| commit | 582ffae852400264b189da7dca9a5212dd3dab01 (patch) | |
| tree | 3afb28f05a2e8e99e39bae7dc0d21a8d0ab87441 /drivers/pci/host/pci-xgene.c | |
| parent | PCI: xgene: Fix platform_get_irq() error handling (diff) | |
| download | linux-582ffae852400264b189da7dca9a5212dd3dab01.tar.xz linux-582ffae852400264b189da7dca9a5212dd3dab01.zip | |
PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offset
Apparently the PCIe capability is at address 0x40 in config space of X-Gene
v1 Root Ports. Add a definition of that and use the generic PCI_EXP_RTCTL
offset into the capability. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/host/pci-xgene.c')
| -rw-r--r-- | drivers/pci/host/pci-xgene.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index bd897479a215..af47ebd70e22 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -61,7 +61,7 @@ #define SZ_1T (SZ_1G*1024ULL) #define PIPE_PHY_RATE_RD(src) ((0xc000 & (u32)(src)) >> 0xe) -#define ROOT_CAP_AND_CTRL 0x5C +#define XGENE_V1_PCI_EXP_CAP 0x40 /* PCIe IP version */ #define XGENE_PCIE_IP_VER_UNKN 0 @@ -189,7 +189,7 @@ static int xgene_pcie_config_read32(struct pci_bus *bus, unsigned int devfn, * Avoid this by not claiming to support CRS. */ if (pci_is_root_bus(bus) && (port->version == XGENE_PCIE_IP_VER_1) && - ((where & ~0x3) == ROOT_CAP_AND_CTRL)) + ((where & ~0x3) == XGENE_V1_PCI_EXP_CAP + PCI_EXP_RTCTL)) *val &= ~(PCI_EXP_RTCAP_CRSVIS << 16); if (size <= 2) |