openwrtv3/target/linux/ar71xx/patches-3.8/022-MIPS-pci-ar71xx-remove-static-PCI-IO-MEM-resources.patch

From f073cb029873ed487e14784d3682b6aa25afe997 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 7 Feb 2013 19:28:15 +0000
Subject: [PATCH] MIPS: pci-ar71xx: remove static PCI IO/MEM resources

commit 42cb60d1fab4c81ef24876d985e08fc5bb899e41 upstream.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4927/
Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/ath79/pci.c      |   12 +++++++++++-
 arch/mips/pci/pci-ar71xx.c |   40 ++++++++++++++++++++++++----------------
 2 files changed, 35 insertions(+), 17 deletions(-)

--- a/arch/mips/ath79/pci.c
+++ b/arch/mips/ath79/pci.c
@@ -117,7 +117,7 @@ static struct platform_device *
 ath79_register_pci_ar71xx(void)
 {
 	struct platform_device *pdev;
-	struct resource res[2];
+	struct resource res[4];
 
 	memset(res, 0, sizeof(res));
 
@@ -130,6 +130,16 @@ ath79_register_pci_ar71xx(void)
 	res[1].start = ATH79_CPU_IRQ_IP2;
 	res[1].end = ATH79_CPU_IRQ_IP2;
 
+	res[2].name = "io_base";
+	res[2].flags = IORESOURCE_IO;
+	res[2].start = 0;
+	res[2].end = 0;
+
+	res[3].name = "mem_base";
+	res[3].flags = IORESOURCE_MEM;
+	res[3].start = AR71XX_PCI_MEM_BASE;
+	res[3].end = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1;
+
 	pdev = platform_device_register_simple("ar71xx-pci", -1,
 					       res, ARRAY_SIZE(res));
 	return pdev;
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -53,6 +53,8 @@ struct ar71xx_pci_controller {
 	spinlock_t lock;
 	int irq;
 	struct pci_controller pci_ctrl;
+	struct resource io_res;
+	struct resource mem_res;
 };
 
 /* Byte lane enable bits */
@@ -234,20 +236,6 @@ static struct pci_ops ar71xx_pci_ops = {
 	.write	= ar71xx_pci_write_config,
 };
 
-static struct resource ar71xx_pci_io_resource = {
-	.name		= "PCI IO space",
-	.start		= 0,
-	.end		= 0,
-	.flags		= IORESOURCE_IO,
-};
-
-static struct resource ar71xx_pci_mem_resource = {
-	.name		= "PCI memory space",
-	.start		= AR71XX_PCI_MEM_BASE,
-	.end		= AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1,
-	.flags		= IORESOURCE_MEM
-};
-
 static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	void __iomem *base = ath79_reset_base;
@@ -370,6 +358,26 @@ static int ar71xx_pci_probe(struct platf
 	if (apc->irq < 0)
 		return -EINVAL;
 
+	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;
+
 	ar71xx_pci_reset();
 
 	/* setup COMMAND register */
@@ -383,8 +391,8 @@ static int ar71xx_pci_probe(struct platf
 	ar71xx_pci_irq_init(apc);
 
 	apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
-	apc->pci_ctrl.mem_resource = &ar71xx_pci_mem_resource;
-	apc->pci_ctrl.io_resource = &ar71xx_pci_io_resource;
+	apc->pci_ctrl.mem_resource = &apc->mem_res;
+	apc->pci_ctrl.io_resource = &apc->io_res;
 
 	register_pci_controller(&apc->pci_ctrl);