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140 lines
3.8 KiB
Diff
140 lines
3.8 KiB
Diff
--- a/arch/mips/pci/pci-ar71xx.c
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+++ b/arch/mips/pci/pci-ar71xx.c
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@@ -51,11 +51,9 @@
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struct ar71xx_pci_controller {
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struct device_node *np;
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void __iomem *cfg_base;
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- int irq;
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struct pci_controller pci_ctrl;
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struct resource io_res;
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struct resource mem_res;
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- struct irq_domain *domain;
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};
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/* Byte lane enable bits */
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@@ -227,104 +225,6 @@ static struct pci_ops ar71xx_pci_ops = {
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.write = ar71xx_pci_write_config,
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};
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-static void ar71xx_pci_irq_handler(struct irq_desc *desc)
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-{
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- void __iomem *base = ath79_reset_base;
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- struct irq_chip *chip = irq_desc_get_chip(desc);
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- struct ar71xx_pci_controller *apc = irq_desc_get_handler_data(desc);
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- u32 pending;
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-
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- chained_irq_enter(chip, desc);
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- pending = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_STATUS) &
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- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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-
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- if (pending & AR71XX_PCI_INT_DEV0)
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- generic_handle_irq(irq_linear_revmap(apc->domain, 1));
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-
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- else if (pending & AR71XX_PCI_INT_DEV1)
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- generic_handle_irq(irq_linear_revmap(apc->domain, 2));
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-
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- else if (pending & AR71XX_PCI_INT_DEV2)
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- generic_handle_irq(irq_linear_revmap(apc->domain, 3));
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-
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- else if (pending & AR71XX_PCI_INT_CORE)
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- generic_handle_irq(irq_linear_revmap(apc->domain, 4));
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-
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- else
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- spurious_interrupt();
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- chained_irq_exit(chip, desc);
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-}
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-
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-static void ar71xx_pci_irq_unmask(struct irq_data *d)
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-{
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- struct ar71xx_pci_controller *apc;
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- unsigned int irq;
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- void __iomem *base = ath79_reset_base;
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- u32 t;
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-
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- apc = irq_data_get_irq_chip_data(d);
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- irq = irq_linear_revmap(apc->domain, d->irq);
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-
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- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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- __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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-
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- /* flush write */
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- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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-}
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-
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-static void ar71xx_pci_irq_mask(struct irq_data *d)
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-{
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- struct ar71xx_pci_controller *apc;
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- unsigned int irq;
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- void __iomem *base = ath79_reset_base;
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- u32 t;
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-
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- apc = irq_data_get_irq_chip_data(d);
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- irq = irq_linear_revmap(apc->domain, d->irq);
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-
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- t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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- __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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-
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- /* flush write */
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- __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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-}
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-
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-static struct irq_chip ar71xx_pci_irq_chip = {
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- .name = "AR71XX PCI",
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- .irq_mask = ar71xx_pci_irq_mask,
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- .irq_unmask = ar71xx_pci_irq_unmask,
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- .irq_mask_ack = ar71xx_pci_irq_mask,
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-};
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-
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-static int ar71xx_pci_irq_map(struct irq_domain *d,
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- unsigned int irq, irq_hw_number_t hw)
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-{
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- struct ar71xx_pci_controller *apc = d->host_data;
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-
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- irq_set_chip_and_handler(irq, &ar71xx_pci_irq_chip, handle_level_irq);
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- irq_set_chip_data(irq, apc);
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-
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- return 0;
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-}
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-
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-static const struct irq_domain_ops ar71xx_pci_domain_ops = {
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- .xlate = irq_domain_xlate_onecell,
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- .map = ar71xx_pci_irq_map,
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-};
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-
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-static void ar71xx_pci_irq_init(struct ar71xx_pci_controller *apc)
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-{
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- void __iomem *base = ath79_reset_base;
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-
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- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_ENABLE);
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- __raw_writel(0, base + AR71XX_RESET_REG_PCI_INT_STATUS);
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-
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- apc->domain = irq_domain_add_linear(apc->np, AR71XX_PCI_IRQ_COUNT,
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- &ar71xx_pci_domain_ops, apc);
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- irq_set_chained_handler_and_data(apc->irq, ar71xx_pci_irq_handler,
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- apc);
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-}
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-
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static void ar71xx_pci_reset(void)
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{
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ath79_device_reset_set(AR71XX_RESET_PCI_BUS | AR71XX_RESET_PCI_CORE);
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@@ -358,10 +258,6 @@ static int ar71xx_pci_probe(struct platf
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if (IS_ERR(apc->cfg_base))
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return PTR_ERR(apc->cfg_base);
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- apc->irq = platform_get_irq(pdev, 0);
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- if (apc->irq < 0)
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- return -EINVAL;
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-
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ar71xx_pci_reset();
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/* setup COMMAND register */
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@@ -372,8 +268,6 @@ static int ar71xx_pci_probe(struct platf
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/* clear bus errors */
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ar71xx_pci_check_error(apc, 1);
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- ar71xx_pci_irq_init(apc);
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-
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apc->np = pdev->dev.of_node;
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apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
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apc->pci_ctrl.mem_resource = &apc->mem_res;
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