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-rw-r--r--target/linux/ramips/files/arch/mips/pci/pci-rt288x.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c b/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c
index 2fccd7bb73..14b7d42ba8 100644
--- a/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c
+++ b/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c
@@ -53,15 +53,20 @@ static void rt2880_pci_reg_write(u32 val, u32 reg)
writel(val, rt2880_pci_base + reg);
}
+static inline u32 rt2880_pci_get_cfgaddr(unsigned int bus, unsigned int slot,
+ unsigned int func, unsigned int where)
+{
+ return ((bus << 16) | (slot << 11) | (func << 8) | (where & 0xfc) |
+ 0x80000000);
+}
+
static void config_access(unsigned char access_type, struct pci_bus *bus,
unsigned int devfn, unsigned char where, u32 *data)
{
- unsigned int slot = PCI_SLOT(devfn);
unsigned int address;
- u8 func = PCI_FUNC(devfn);
- address = (bus->number << 16) | (slot << 11) | (func << 8) |
- (where & 0xfc) | 0x80000000;
+ address = rt2880_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn),
+ PCI_FUNC(devfn), where);
rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR);
if (access_type == PCI_ACCESS_WRITE)
@@ -157,8 +162,7 @@ static inline void read_config(unsigned long bus, unsigned long dev,
unsigned long address;
unsigned long flags;
- address = (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) |
- 0x80000000;
+ address = rt2880_pci_get_cfgaddr(bus, dev, func, reg);
spin_lock_irqsave(&rt2880_pci_lock, flags);
rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR);
@@ -173,8 +177,7 @@ static inline void write_config(unsigned long bus, unsigned long dev,
unsigned long address;
unsigned long flags;
- address = (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) |
- 0x80000000;
+ address = rt2880_pci_get_cfgaddr(bus, dev, func, reg);
spin_lock_irqsave(&rt2880_pci_lock, flags);
rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR);