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@ -35,22 +35,6 @@ static int ar724x_pci_fixup_enable; |
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static DEFINE_SPINLOCK(ar724x_pci_lock); |
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static inline void ar724x_pci_wr(unsigned reg, u32 val) |
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{ |
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__raw_writel(val, ar724x_pci_ctrl_base + reg); |
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(void) __raw_readl(ar724x_pci_ctrl_base + reg); |
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} |
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static inline void ar724x_pci_wr_nf(unsigned reg, u32 val) |
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{ |
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__raw_writel(val, ar724x_pci_ctrl_base + reg); |
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} |
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static inline u32 ar724x_pci_rr(unsigned reg) |
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{ |
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return __raw_readl(ar724x_pci_ctrl_base + reg); |
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} |
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static void ar724x_pci_read(void __iomem *base, int where, int size, u32 *value) |
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{ |
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unsigned long flags; |
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@ -233,6 +217,7 @@ static void __init ar724x_pci_reset(void) |
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static int __init ar724x_pci_setup(void) |
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{ |
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void __iomem *base = ar724x_pci_ctrl_base; |
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u32 t; |
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/* setup COMMAND register */ |
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@ -243,19 +228,21 @@ static int __init ar724x_pci_setup(void) |
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ar724x_pci_write(ar724x_pci_localcfg_base, 0x20, 4, 0x1ff01000); |
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ar724x_pci_write(ar724x_pci_localcfg_base, 0x24, 4, 0x1ff01000); |
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t = ar724x_pci_rr(AR724X_PCI_REG_RESET); |
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t = __raw_readl(base + AR724X_PCI_REG_RESET); |
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if (t != 0x7) { |
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udelay(100000); |
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ar724x_pci_wr_nf(AR724X_PCI_REG_RESET, 0); |
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__raw_writel(0, base + AR724X_PCI_REG_RESET); |
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udelay(100); |
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ar724x_pci_wr_nf(AR724X_PCI_REG_RESET, 4); |
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__raw_writel(4, base + AR724X_PCI_REG_RESET); |
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udelay(100000); |
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} |
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ar724x_pci_wr(AR724X_PCI_REG_APP, AR724X_PCI_APP_LTSSM_ENABLE); |
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__raw_writel(AR724X_PCI_APP_LTSSM_ENABLE, base + AR724X_PCI_REG_APP); |
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/* flush write */ |
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(void) __raw_readl(base + AR724X_PCI_REG_APP); |
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udelay(1000); |
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t = ar724x_pci_rr(AR724X_PCI_REG_APP); |
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t = __raw_readl(base + AR724X_PCI_REG_APP); |
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if ((t & AR724X_PCI_APP_LTSSM_ENABLE) == 0x0) { |
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printk(KERN_WARNING "PCI: no PCIe module found\n"); |
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return -ENODEV; |
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@ -266,10 +253,11 @@ static int __init ar724x_pci_setup(void) |
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static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc) |
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{ |
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void __iomem *base = ar724x_pci_ctrl_base; |
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u32 pending; |
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pending = ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS) & |
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ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); |
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pending = __raw_readl(base + AR724X_PCI_REG_INT_STATUS) & |
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__raw_readl(base + AR724X_PCI_REG_INT_MASK); |
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if (pending & AR724X_PCI_INT_DEV0) |
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generic_handle_irq(AR71XX_PCI_IRQ_DEV0); |
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@ -280,33 +268,43 @@ static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc) |
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static void ar724x_pci_irq_unmask(unsigned int irq) |
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{ |
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void __iomem *base = ar724x_pci_ctrl_base; |
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u32 t; |
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switch (irq) { |
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case AR71XX_PCI_IRQ_DEV0: |
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irq -= AR71XX_PCI_IRQ_BASE; |
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ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, |
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ar724x_pci_rr(AR724X_PCI_REG_INT_MASK) | |
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AR724X_PCI_INT_DEV0); |
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t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); |
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__raw_writel(t | AR724X_PCI_INT_DEV0, |
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base + AR724X_PCI_REG_INT_MASK); |
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/* flush write */ |
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ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); |
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(void) __raw_readl(base + AR724X_PCI_REG_INT_MASK); |
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} |
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} |
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static void ar724x_pci_irq_mask(unsigned int irq) |
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{ |
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void __iomem *base = ar724x_pci_ctrl_base; |
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u32 t; |
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switch (irq) { |
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case AR71XX_PCI_IRQ_DEV0: |
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irq -= AR71XX_PCI_IRQ_BASE; |
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ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, |
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ar724x_pci_rr(AR724X_PCI_REG_INT_MASK) & |
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~AR724X_PCI_INT_DEV0); |
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t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); |
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__raw_writel(t & ~AR724X_PCI_INT_DEV0, |
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base + AR724X_PCI_REG_INT_MASK); |
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/* flush write */ |
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ar724x_pci_rr(AR724X_PCI_REG_INT_MASK); |
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(void) __raw_readl(base + AR724X_PCI_REG_INT_MASK); |
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t = __raw_readl(base + AR724X_PCI_REG_INT_STATUS); |
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__raw_writel(t | AR724X_PCI_INT_DEV0, |
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base + AR724X_PCI_REG_INT_STATUS); |
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ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, |
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ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS) | |
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AR724X_PCI_INT_DEV0); |
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/* flush write */ |
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ar724x_pci_rr(AR724X_PCI_REG_INT_STATUS); |
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(void) __raw_readl(base + AR724X_PCI_REG_INT_STATUS); |
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} |
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} |
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@ -319,6 +317,7 @@ static struct irq_chip ar724x_pci_irq_chip = { |
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static void __init ar724x_pci_irq_init(void) |
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{ |
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void __iomem *base = ar724x_pci_ctrl_base; |
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u32 t; |
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int i; |
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@ -328,8 +327,8 @@ static void __init ar724x_pci_irq_init(void) |
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return; |
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} |
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ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, 0); |
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ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, 0); |
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__raw_writel(0, base + AR724X_PCI_REG_INT_MASK); |
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__raw_writel(0, base + AR724X_PCI_REG_INT_STATUS); |
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for (i = AR71XX_PCI_IRQ_BASE; |
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i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++) { |
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