diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ramips/files/arch/mips/pci/pci-rt288x.c | 39 |
1 files changed, 15 insertions, 24 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 1c9df5df53..84a9735458 100644 --- a/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c +++ b/target/linux/ramips/files/arch/mips/pci/pci-rt288x.c @@ -37,9 +37,6 @@ #define RT2880_PCI_REG_SUBID 0x38 #define RT2880_PCI_REG_ARBCTL 0x80 -#define PCI_ACCESS_READ 0 -#define PCI_ACCESS_WRITE 1 - static void __iomem *rt2880_pci_base; static DEFINE_SPINLOCK(rt2880_pci_lock); @@ -60,29 +57,19 @@ static inline u32 rt2880_pci_get_cfgaddr(unsigned int bus, unsigned int slot, 0x80000000); } -static void config_access(unsigned char access_type, struct pci_bus *bus, - unsigned int devfn, unsigned char where, u32 *data) -{ - unsigned int address; - - 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) - rt2880_pci_reg_write(*data, RT2880_PCI_REG_CONFIG_DATA); - else - *data = rt2880_pci_reg_read(RT2880_PCI_REG_CONFIG_DATA); -} - static int rt2880_pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { unsigned long flags; - u32 data = 0; + u32 address; + u32 data; + + address = rt2880_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), where); spin_lock_irqsave(&rt2880_pci_lock, flags); - config_access(PCI_ACCESS_READ, bus, devfn, where, &data); + rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR); + data = rt2880_pci_reg_read(RT2880_PCI_REG_CONFIG_DATA); spin_unlock_irqrestore(&rt2880_pci_lock, flags); switch (size) { @@ -104,18 +91,22 @@ static int rt2880_pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { unsigned long flags; - u32 data = 0; + u32 address; + u32 data; + + address = rt2880_pci_get_cfgaddr(bus->number, PCI_SLOT(devfn), + PCI_FUNC(devfn), where); spin_lock_irqsave(&rt2880_pci_lock, flags); + rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR); + data = rt2880_pci_reg_read(RT2880_PCI_REG_CONFIG_DATA); switch (size) { case 1: - config_access(PCI_ACCESS_READ, bus, devfn, where, &data); data = (data & ~(0xff << ((where & 3) << 3))) | (val << ((where & 3) << 3)); break; case 2: - config_access(PCI_ACCESS_READ, bus, devfn, where, &data); data = (data & ~(0xffff << ((where & 3) << 3))) | (val << ((where & 3) << 3)); break; @@ -124,7 +115,7 @@ static int rt2880_pci_config_write(struct pci_bus *bus, unsigned int devfn, break; } - config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data); + rt2880_pci_reg_write(data, RT2880_PCI_REG_CONFIG_DATA); spin_unlock_irqrestore(&rt2880_pci_lock, flags); return PCIBIOS_SUCCESSFUL; |