diff options
Diffstat (limited to 'target/linux/ar71xx/patches-3.8/018-MIPS-pci-ar724x-remove-static-PCI-IO-MEM-resources.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-3.8/018-MIPS-pci-ar724x-remove-static-PCI-IO-MEM-resources.patch | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.8/018-MIPS-pci-ar724x-remove-static-PCI-IO-MEM-resources.patch b/target/linux/ar71xx/patches-3.8/018-MIPS-pci-ar724x-remove-static-PCI-IO-MEM-resources.patch new file mode 100644 index 0000000000..823488aaa9 --- /dev/null +++ b/target/linux/ar71xx/patches-3.8/018-MIPS-pci-ar724x-remove-static-PCI-IO-MEM-resources.patch @@ -0,0 +1,139 @@ +From d80b05d19c2772ded40403d578d8e90d38c85257 Mon Sep 17 00:00:00 2001 +From: Gabor Juhos <juhosg@openwrt.org> +Date: Sun, 3 Feb 2013 09:59:45 +0000 +Subject: [PATCH] MIPS: pci-ar724x: remove static PCI IO/MEM resources + +commit 34b134aebda89888b6985b7a3139e9cbdf209236 upstream. + +Static resources become impractical when multiple +PCI controllers are present. Move the resources +into the platform device registration code and +change the probe routine to get those from there +platform device's resources. + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +Patchwork: http://patchwork.linux-mips.org/patch/4914/ +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/ath79/pci.c | 21 ++++++++++++++++++++- + arch/mips/pci/pci-ar724x.c | 40 ++++++++++++++++++++++++---------------- + 2 files changed, 44 insertions(+), 17 deletions(-) + +--- a/arch/mips/ath79/pci.c ++++ b/arch/mips/ath79/pci.c +@@ -139,10 +139,13 @@ static struct platform_device * + ath79_register_pci_ar724x(int id, + unsigned long cfg_base, + unsigned long ctrl_base, ++ unsigned long mem_base, ++ unsigned long mem_size, ++ unsigned long io_base, + int irq) + { + struct platform_device *pdev; +- struct resource res[3]; ++ struct resource res[5]; + + memset(res, 0, sizeof(res)); + +@@ -160,6 +163,16 @@ ath79_register_pci_ar724x(int id, + res[2].start = irq; + res[2].end = irq; + ++ res[3].name = "mem_base"; ++ res[3].flags = IORESOURCE_MEM; ++ res[3].start = mem_base; ++ res[3].end = mem_base + mem_size - 1; ++ ++ res[4].name = "io_base"; ++ res[4].flags = IORESOURCE_IO; ++ res[4].start = io_base; ++ res[4].end = io_base; ++ + pdev = platform_device_register_simple("ar724x-pci", id, + res, ARRAY_SIZE(res)); + return pdev; +@@ -175,6 +188,9 @@ int __init ath79_register_pci(void) + pdev = ath79_register_pci_ar724x(-1, + AR724X_PCI_CFG_BASE, + AR724X_PCI_CTRL_BASE, ++ AR724X_PCI_MEM_BASE, ++ AR724X_PCI_MEM_SIZE, ++ 0, + ATH79_CPU_IRQ_IP2); + } else if (soc_is_ar9342() || + soc_is_ar9344()) { +@@ -187,6 +203,9 @@ int __init ath79_register_pci(void) + pdev = ath79_register_pci_ar724x(-1, + AR724X_PCI_CFG_BASE, + AR724X_PCI_CTRL_BASE, ++ AR724X_PCI_MEM_BASE, ++ AR724X_PCI_MEM_SIZE, ++ 0, + ATH79_IP2_IRQ(0)); + } else { + /* No PCI support */ +--- a/arch/mips/pci/pci-ar724x.c ++++ b/arch/mips/pci/pci-ar724x.c +@@ -42,6 +42,8 @@ struct ar724x_pci_controller { + spinlock_t lock; + + struct pci_controller pci_controller; ++ struct resource io_res; ++ struct resource mem_res; + }; + + static inline bool ar724x_pci_check_link(struct ar724x_pci_controller *apc) +@@ -190,20 +192,6 @@ static struct pci_ops ar724x_pci_ops = { + .write = ar724x_pci_write, + }; + +-static struct resource ar724x_io_resource = { +- .name = "PCI IO space", +- .start = 0, +- .end = 0, +- .flags = IORESOURCE_IO, +-}; +- +-static struct resource ar724x_mem_resource = { +- .name = "PCI memory space", +- .start = AR724X_PCI_MEM_BASE, +- .end = AR724X_PCI_MEM_BASE + AR724X_PCI_MEM_SIZE - 1, +- .flags = IORESOURCE_MEM, +-}; +- + static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc) + { + struct ar724x_pci_controller *apc; +@@ -331,9 +319,29 @@ static int ar724x_pci_probe(struct platf + + spin_lock_init(&apc->lock); + ++ res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base"); ++ if (!res) ++ return -EINVAL; ++ ++ apc->io_res.parent = res; ++ apc->io_res.name = "PCI IO space"; ++ apc->io_res.start = res->start; ++ apc->io_res.end = res->end; ++ apc->io_res.flags = IORESOURCE_IO; ++ ++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem_base"); ++ if (!res) ++ return -EINVAL; ++ ++ apc->mem_res.parent = res; ++ apc->mem_res.name = "PCI memory space"; ++ apc->mem_res.start = res->start; ++ apc->mem_res.end = res->end; ++ apc->mem_res.flags = IORESOURCE_MEM; ++ + apc->pci_controller.pci_ops = &ar724x_pci_ops; +- apc->pci_controller.io_resource = &ar724x_io_resource; +- apc->pci_controller.mem_resource = &ar724x_mem_resource; ++ apc->pci_controller.io_resource = &apc->io_res; ++ apc->pci_controller.mem_resource = &apc->mem_res; + + apc->link_up = ar724x_pci_check_link(apc); + if (!apc->link_up) |