ar71xx: add an irq parameter for ar724x_pcibios_init

[openwrt.git] / target / linux / ar71xx / files / arch / mips / pci / pci-ar724x.c

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 fd52216..57daa06 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
+++ b/target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
@@ -110,8 +110,11 @@ static int ar724x_pci_read_config(struct pci_bus *bus, unsigned int devfn,
         * WAR for BAR issue - We are unable to access the PCI device space
         * if we set the BAR with proper base address
         */
         * WAR for BAR issue - We are unable to access the PCI device space
         * if we set the BAR with proper base address
         */

-       if ((where == 0x10) && (size == 4))
-               ar724x_pci_write(ar724x_pci_devcfg_base, where, size, 0xffff);
+       if ((where == 0x10) && (size == 4)) {
+               u32 val;
+               val = (ar71xx_soc == AR71XX_SOC_AR7240) ? 0xffff : 0x1000ffff;
+               ar724x_pci_write(ar724x_pci_devcfg_base, where, size, val);
+       }

 
        return PCIBIOS_SUCCESSFUL;
 }
 
        return PCIBIOS_SUCCESSFUL;
 }


@@ -237,17 +240,28 @@ static int __init ar724x_pci_setup(void)
                udelay(100000);
        }
 
                udelay(100000);
        }
 

-       __raw_writel(AR724X_PCI_APP_LTSSM_ENABLE, base + AR724X_PCI_REG_APP);
+       if (ar71xx_soc == AR71XX_SOC_AR7240)
+               t = AR724X_PCI_APP_LTSSM_ENABLE;
+       else
+               t = 0x1ffc1;
+       __raw_writel(t, base + AR724X_PCI_REG_APP);

        /* flush write */
        (void) __raw_readl(base + AR724X_PCI_REG_APP);
        udelay(1000);
 
        /* flush write */
        (void) __raw_readl(base + AR724X_PCI_REG_APP);
        udelay(1000);
 

-       t = __raw_readl(base + AR724X_PCI_REG_APP);
-       if ((t & AR724X_PCI_APP_LTSSM_ENABLE) == 0x0) {
+       t = __raw_readl(base + AR724X_PCI_REG_RESET);
+       if ((t & AR724X_PCI_RESET_LINK_UP) == 0x0) {

                printk(KERN_WARNING "PCI: no PCIe module found\n");
                return -ENODEV;
        }
 
                printk(KERN_WARNING "PCI: no PCIe module found\n");
                return -ENODEV;
        }
 

+       if (ar71xx_soc == AR71XX_SOC_AR7241 ||
+           ar71xx_soc == AR71XX_SOC_AR7242) {
+               t = __raw_readl(base + AR724X_PCI_REG_APP);
+               t |= BIT(16);
+               __raw_writel(t, base + AR724X_PCI_REG_APP);
+       }
+

        return 0;
 }
 
        return 0;
 }
 


@@ -266,15 +280,13 @@ static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
                spurious_interrupt();
 }
 
                spurious_interrupt();
 }
 

-static void ar724x_pci_irq_unmask(unsigned int irq)
+static void ar724x_pci_irq_unmask(struct irq_data *d)

 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;
 
 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;
 

-       switch (irq) {
+       switch (d->irq) {

        case AR71XX_PCI_IRQ_DEV0:
        case AR71XX_PCI_IRQ_DEV0:

-               irq -= AR71XX_PCI_IRQ_BASE;
-

                t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
                __raw_writel(t | AR724X_PCI_INT_DEV0,
                             base + AR724X_PCI_REG_INT_MASK);
                t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
                __raw_writel(t | AR724X_PCI_INT_DEV0,
                             base + AR724X_PCI_REG_INT_MASK);


@@ -283,15 +295,13 @@ static void ar724x_pci_irq_unmask(unsigned int irq)
        }
 }
 
        }
 }
 

-static void ar724x_pci_irq_mask(unsigned int irq)
+static void ar724x_pci_irq_mask(struct irq_data *d)

 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;
 
 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;
 

-       switch (irq) {
+       switch (d->irq) {

        case AR71XX_PCI_IRQ_DEV0:
        case AR71XX_PCI_IRQ_DEV0:

-               irq -= AR71XX_PCI_IRQ_BASE;
-

                t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
                __raw_writel(t & ~AR724X_PCI_INT_DEV0,
                             base + AR724X_PCI_REG_INT_MASK);
                t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
                __raw_writel(t & ~AR724X_PCI_INT_DEV0,
                             base + AR724X_PCI_REG_INT_MASK);


@@ -310,12 +320,12 @@ static void ar724x_pci_irq_mask(unsigned int irq)
 
 static struct irq_chip ar724x_pci_irq_chip = {
        .name           = "AR724X PCI ",
 
 static struct irq_chip ar724x_pci_irq_chip = {
        .name           = "AR724X PCI ",

-       .mask           = ar724x_pci_irq_mask,
-       .unmask         = ar724x_pci_irq_unmask,
-       .mask_ack       = ar724x_pci_irq_mask,
+       .irq_mask       = ar724x_pci_irq_mask,
+       .irq_unmask     = ar724x_pci_irq_unmask,
+       .irq_mask_ack   = ar724x_pci_irq_mask,

 };
 
 };
 

-static void __init ar724x_pci_irq_init(void)
+static void __init ar724x_pci_irq_init(int irq)

 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;
 {
        void __iomem *base = ar724x_pci_ctrl_base;
        u32 t;


@@ -331,16 +341,14 @@ static void __init ar724x_pci_irq_init(void)
        __raw_writel(0, base + AR724X_PCI_REG_INT_STATUS);
 
        for (i = AR71XX_PCI_IRQ_BASE;
        __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++) {
-               irq_desc[i].status = IRQ_DISABLED;
-               set_irq_chip_and_handler(i, &ar724x_pci_irq_chip,
+            i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
+               irq_set_chip_and_handler(i, &ar724x_pci_irq_chip,

                                         handle_level_irq);
                                         handle_level_irq);

-       }

 
 

-       set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
+       irq_set_chained_handler(irq, ar724x_pci_irq_handler);

 }
 
 }
 

-int __init ar724x_pcibios_init(void)
+int __init ar724x_pcibios_init(int irq)

 {
        int ret = -ENOMEM;
 
 {
        int ret = -ENOMEM;
 


@@ -365,17 +373,17 @@ int __init ar724x_pcibios_init(void)
                goto err_unmap_ctrl;
 
        ar724x_pci_fixup_enable = 1;
                goto err_unmap_ctrl;
 
        ar724x_pci_fixup_enable = 1;

-       ar724x_pci_irq_init();
+       ar724x_pci_irq_init(irq);

        register_pci_controller(&ar724x_pci_controller);
 
        return 0;
 
        register_pci_controller(&ar724x_pci_controller);
 
        return 0;
 

- err_unmap_ctrl:
+err_unmap_ctrl:

        iounmap(ar724x_pci_ctrl_base);
        iounmap(ar724x_pci_ctrl_base);

-  err_unmap_devcfg:
+err_unmap_devcfg:

        iounmap(ar724x_pci_devcfg_base);
        iounmap(ar724x_pci_devcfg_base);

- err_unmap_localcfg:
+err_unmap_localcfg:

        iounmap(ar724x_pci_localcfg_base);
        iounmap(ar724x_pci_localcfg_base);

- err:
+err:

        return ret;
 }
        return ret;
 }