openwrt-xburst/target/linux/ar71xx/patches-3.3/150-MIPS-pci-ar724x-remove-static-PCI-resources.patch

From f1c3a7dadf7b77809cda7f77df4b1ba3b24fbfa3 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 27 Jun 2012 10:12:50 +0200
Subject: [PATCH 11/34] MIPS: pci-ar724x: remove static PCI resources

Get those from the platform device instead.

Signed-off-by: Gabor Juhos <juhosg@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
@@ -137,10 +137,13 @@ 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));
 
@@ -158,6 +161,16 @@ 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;
@@ -173,6 +186,9 @@ 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()) {
@@ -185,6 +201,9 @@ 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 __devinit ar724x_pci_probe(st
 
 	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)