diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.8/144-MIPS-pci-ar71xx-convert-to-a-platform-driver.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.8/144-MIPS-pci-ar71xx-convert-to-a-platform-driver.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.8/144-MIPS-pci-ar71xx-convert-to-a-platform-driver.patch b/target/linux/ar71xx/patches-3.8/144-MIPS-pci-ar71xx-convert-to-a-platform-driver.patch new file mode 100644 index 0000000000..98000a0aae --- /dev/null +++ b/target/linux/ar71xx/patches-3.8/144-MIPS-pci-ar71xx-convert-to-a-platform-driver.patch @@ -0,0 +1,104 @@ +From d1a22e73f991145a4abd7d0c37bcf318703c89ed Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Mon, 11 Jun 2012 13:24:55 +0200 +Subject: [PATCH 05/34] MIPS: pci-ar71xx: convert to a platform driver + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + arch/mips/pci/pci-ar71xx.c | 60 +++++++++++++++++++++++++++++++++++++++++--- + 1 files changed, 56 insertions(+), 4 deletions(-) + +--- a/arch/mips/pci/pci-ar71xx.c ++++ b/arch/mips/pci/pci-ar71xx.c +@@ -18,6 +18,8 @@ + #include <linux/pci.h> + #include <linux/pci_regs.h> + #include <linux/interrupt.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> + + #include <asm/mach-ath79/ar71xx_regs.h> + #include <asm/mach-ath79/ath79.h> +@@ -309,7 +311,7 @@ static struct irq_chip ar71xx_pci_irq_ch + .irq_mask_ack = ar71xx_pci_irq_mask, + }; + +-static __init void ar71xx_pci_irq_init(void) ++static void ar71xx_pci_irq_init(int irq) + { + void __iomem *base = ath79_reset_base; + int i; +@@ -324,10 +326,10 @@ static __init void ar71xx_pci_irq_init(v + irq_set_chip_and_handler(i, &ar71xx_pci_irq_chip, + handle_level_irq); + +- irq_set_chained_handler(ATH79_CPU_IRQ_IP2, ar71xx_pci_irq_handler); ++ irq_set_chained_handler(irq, ar71xx_pci_irq_handler); + } + +-static __init void ar71xx_pci_reset(void) ++static void ar71xx_pci_reset(void) + { + void __iomem *ddr_base = ath79_ddr_base; + +@@ -367,9 +369,59 @@ __init int ar71xx_pcibios_init(void) + /* clear bus errors */ + ar71xx_pci_check_error(1); + +- ar71xx_pci_irq_init(); ++ ar71xx_pci_irq_init(ATH79_CPU_IRQ_IP2); + + register_pci_controller(&ar71xx_pci_controller); + + return 0; + } ++ ++static int ar71xx_pci_probe(struct platform_device *pdev) ++{ ++ struct resource *res; ++ int irq; ++ u32 t; ++ ++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg_base"); ++ if (!res) ++ return -EINVAL; ++ ++ ar71xx_pcicfg_base = devm_request_and_ioremap(&pdev->dev, res); ++ if (!ar71xx_pcicfg_base) ++ return -ENOMEM; ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) ++ return -EINVAL; ++ ++ ar71xx_pci_reset(); ++ ++ /* setup COMMAND register */ ++ t = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE ++ | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK; ++ ar71xx_pci_local_write(PCI_COMMAND, 4, t); ++ ++ /* clear bus errors */ ++ ar71xx_pci_check_error(1); ++ ++ ar71xx_pci_irq_init(irq); ++ ++ register_pci_controller(&ar71xx_pci_controller); ++ ++ return 0; ++} ++ ++static struct platform_driver ar71xx_pci_driver = { ++ .probe = ar71xx_pci_probe, ++ .driver = { ++ .name = "ar71xx-pci", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init ar71xx_pci_init(void) ++{ ++ return platform_driver_register(&ar71xx_pci_driver); ++} ++ ++postcore_initcall(ar71xx_pci_init); |