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authorGabor Juhos <juhosg@openwrt.org>2013-03-04 11:48:08 +0000
committerGabor Juhos <juhosg@openwrt.org>2013-03-04 11:48:08 +0000
commit64a9fe2894ab05e504cfcb824701e59d484f5f53 (patch)
treef20f4cadaef860aff569c7f9054dcc9864650ed1 /target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch
parent12d49b5195716dfebb65da590646c6ebd6cacf70 (diff)
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ar71xx: use backported PCI patches
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 35877
Diffstat (limited to 'target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch')
-rw-r--r--target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch112
1 files changed, 112 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch b/target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch
new file mode 100644
index 0000000000..e6bd8d0c41
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.8/011-MIPS-pci-ar71xx-convert-into-a-platform-driver.patch
@@ -0,0 +1,112 @@
+From 060c9a226a25e044167e877d9830ec53f836da9e Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Sat, 2 Feb 2013 11:40:43 +0000
+Subject: [PATCH] MIPS: pci-ar71xx: convert into a platform driver
+
+commit fb167e891d5cc6386840dd092af2d461b38eb802 upstream.
+
+The patch converts the pci-ar71xx driver into a
+platform driver. This makes it possible to register
+the PCI controller as a plain platform device.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/4906/
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/pci/pci-ar71xx.c | 60 +++++++++++++++++++++++++++++++++++++++++---
+ 1 file 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);