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| author |   Bjorn Helgaas <bhelgaas@google.com> | 2023-04-20 16:16:36 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-04-20 16:16:36 -0500 |
| commit | 73af737eea9e7ff5a99d10e709f7f1ad7c6abe36 (patch) | |
| tree | 903f7fc015e88fafd8c7e30cba01db5fd56ea4e2 | |
| parent | Merge branch 'pci/controller/dwc' (diff) | |
| parent | PCI: ixp4xx: Use PCI_CONF1_ADDRESS() macro (diff) | |
| download | wireguard-linux-73af737eea9e7ff5a99d10e709f7f1ad7c6abe36.tar.xz wireguard-linux-73af737eea9e7ff5a99d10e709f7f1ad7c6abe36.zip | |
Merge branch 'pci/controller/ixp4xx'
- Use the PCI_CONF1_ADDRESS() macro to simplify config space address
computation (Pali Rohár)
* pci/controller/ixp4xx:
PCI: ixp4xx: Use PCI_CONF1_ADDRESS() macro
| -rw-r--r-- | drivers/pci/controller/pci-ixp4xx.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/pci/controller/pci-ixp4xx.c b/drivers/pci/controller/pci-ixp4xx.c index 654ac4a82beb..e44252db6085 100644 --- a/drivers/pci/controller/pci-ixp4xx.c +++ b/drivers/pci/controller/pci-ixp4xx.c @@ -26,6 +26,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/bits.h> +#include "../pci.h" /* Register offsets */ #define IXP4XX_PCI_NP_AD 0x00 @@ -188,12 +189,13 @@ static u32 ixp4xx_config_addr(u8 bus_num, u16 devfn, int where) /* Root bus is always 0 in this hardware */ if (bus_num == 0) { /* type 0 */ - return BIT(32-PCI_SLOT(devfn)) | ((PCI_FUNC(devfn)) << 8) | - (where & ~3); + return (PCI_CONF1_ADDRESS(0, 0, PCI_FUNC(devfn), where) & + ~PCI_CONF1_ENABLE) | BIT(32-PCI_SLOT(devfn)); } else { /* type 1 */ - return (bus_num << 16) | ((PCI_SLOT(devfn)) << 11) | - ((PCI_FUNC(devfn)) << 8) | (where & ~3) | 1; + return (PCI_CONF1_ADDRESS(bus_num, PCI_SLOT(devfn), + PCI_FUNC(devfn), where) & + ~PCI_CONF1_ENABLE) | 1; } } |