diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c | 73 |
1 files changed, 36 insertions, 37 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c b/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c index 30b34dc7e8..fd52216074 100644 --- a/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c +++ b/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c @@ -35,22 +35,6 @@ static int ar724x_pci_fixup_enable; static DEFINE_SPINLOCK(ar724x_pci_lock); -static inline void ar724x_pci_wr(unsigned reg, u32 val) -{ - __raw_writel(val, ar724x_pci_ctrl_base + reg); - (void) __raw_readl(ar724x_pci_ctrl_base + reg); -} - -static inline void ar724x_pci_wr_nf(unsigned reg, u32 val) -{ - __raw_writel(val, ar724x_pci_ctrl_base + reg); -} - -static inline u32 ar724x_pci_rr(unsigned reg) -{ - return __raw_readl(ar724x_pci_ctrl_base + reg); -} - static void ar724x_pci_read(void __iomem *base, int where, int size, u32 *value) { unsigned long flags; @@ -233,6 +217,7 @@ static void __init ar724x_pci_reset(void) static int __init ar724x_pci_setup(void) { + void __iomem *base = ar724x_pci_ctrl_base; u32 t; /* setup COMMAND register */ @@ -243,19 +228,21 @@ static int __init ar724x_pci_setup(void) ar724x_pci_write(ar724x_pci_localcfg_base, 0x20, 4, 0x1ff01000); ar724x_pci_write(ar724x_pci_localcfg_base, 0x24, 4, 0x1ff01000); - t = ar724x_pci_rr(AR724X_PCI_REG_RESET); + t = __raw_readl(base + AR724X_PCI_REG_RESET); if (t != 0x7) { udelay(100000); - ar724x_pci_wr_nf(AR724X_PCI_REG_RESET, 0); + __raw_writel(0, base + AR724X_PCI_REG_RESET); udelay(100); - ar724x_pci_wr_nf(AR724X_PCI_REG_RESET, 4); + __raw_writel(4, base + AR724X_PCI_REG_RESET); udelay(100000); } - ar724x_pci_wr(AR724X_PCI_REG_APP, AR724X_PCI_APP_LTSSM_ENABLE); + __raw_writel(AR724X_PCI_APP_LTSSM_ENABLE, base + AR724X_PCI_REG_APP); + /* flush write */ + (void) __raw_readl(base + AR724X_PCI_REG_APP); udelay(1000); - t = ar724x_pci_rr(AR724X_PCI_REG_APP); + t = __raw_readl(base + AR724X_PCI_REG_APP); if ((t & AR724X_PCI_APP_LTSSM_ENABLE) == 0x0) { printk(KERN_WARNING "PCI: no PCIe module found\n"); return -ENODEV; @@ -266,10 +253,11 @@ static int __init ar724x_pci_setup(void) static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc) { + void __iomem *base = ar724x_pci_ctrl_base; u32 pending; - pending = ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS) & - ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); + pending = __raw_readl(base + AR724X_PCI_REG_INT_STATUS) & + __raw_readl(base + AR724X_PCI_REG_INT_MASK); if (pending & AR724X_PCI_INT_DEV0) generic_handle_irq(AR71XX_PCI_IRQ_DEV0); @@ -280,33 +268,43 @@ static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc) static void ar724x_pci_irq_unmask(unsigned int irq) { + void __iomem *base = ar724x_pci_ctrl_base; + u32 t; + switch (irq) { case AR71XX_PCI_IRQ_DEV0: irq -= AR71XX_PCI_IRQ_BASE; - ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, - ar724x_pci_rr(AR724X_PCI_REG_INT_MASK) | - AR724X_PCI_INT_DEV0); + + t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); + __raw_writel(t | AR724X_PCI_INT_DEV0, + base + AR724X_PCI_REG_INT_MASK); /* flush write */ - ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); + (void) __raw_readl(base + AR724X_PCI_REG_INT_MASK); } } static void ar724x_pci_irq_mask(unsigned int irq) { + void __iomem *base = ar724x_pci_ctrl_base; + u32 t; + switch (irq) { case AR71XX_PCI_IRQ_DEV0: irq -= AR71XX_PCI_IRQ_BASE; - ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, - ar724x_pci_rr(AR724X_PCI_REG_INT_MASK) & - ~AR724X_PCI_INT_DEV0); + + t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); + __raw_writel(t & ~AR724X_PCI_INT_DEV0, + base + AR724X_PCI_REG_INT_MASK); + /* flush write */ - ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); + (void) __raw_readl(base + AR724X_PCI_REG_INT_MASK); + + t = __raw_readl(base + AR724X_PCI_REG_INT_STATUS); + __raw_writel(t | AR724X_PCI_INT_DEV0, + base + AR724X_PCI_REG_INT_STATUS); - ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, - ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS) | - AR724X_PCI_INT_DEV0); /* flush write */ - ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS); + (void) __raw_readl(base + AR724X_PCI_REG_INT_STATUS); } } @@ -319,6 +317,7 @@ static struct irq_chip ar724x_pci_irq_chip = { static void __init ar724x_pci_irq_init(void) { + void __iomem *base = ar724x_pci_ctrl_base; u32 t; int i; @@ -328,8 +327,8 @@ static void __init ar724x_pci_irq_init(void) return; } - ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, 0); - ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, 0); + __raw_writel(0, base + AR724X_PCI_REG_INT_MASK); + __raw_writel(0, base + AR724X_PCI_REG_INT_STATUS); for (i = AR71XX_PCI_IRQ_BASE; i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++) { |