From 97e6f608061bd694cce833a1e892097efc8d3160 Mon Sep 17 00:00:00 2001
From: juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 5 Jul 2012 08:26:45 +0000
Subject: ar71xx: refactor PCI code to allow registering multiple PCI
 controllers

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32605 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 ...register-platform-devices-for-the-PCI-con.patch | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 target/linux/ar71xx/patches-3.3/146-MIPS-ath79-register-platform-devices-for-the-PCI-con.patch

(limited to 'target/linux/ar71xx/patches-3.3/146-MIPS-ath79-register-platform-devices-for-the-PCI-con.patch')

diff --git a/target/linux/ar71xx/patches-3.3/146-MIPS-ath79-register-platform-devices-for-the-PCI-con.patch b/target/linux/ar71xx/patches-3.3/146-MIPS-ath79-register-platform-devices-for-the-PCI-con.patch
new file mode 100644
index 000000000..cc2572f88
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.3/146-MIPS-ath79-register-platform-devices-for-the-PCI-con.patch
@@ -0,0 +1,119 @@
+From 2fdf8dcff3ffaa806e9f9d7f1c1bd876222cff4d Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Mon, 11 Jun 2012 13:39:32 +0200
+Subject: [PATCH 07/34] MIPS: ath79: register platform devices for the PCI controllers
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ath79/pci.c |   87 +++++++++++++++++++++++++++++++++++++++++++-----
+ 1 files changed, 78 insertions(+), 9 deletions(-)
+
+--- a/arch/mips/ath79/pci.c
++++ b/arch/mips/ath79/pci.c
+@@ -14,6 +14,8 @@
+ 
+ #include <linux/init.h>
+ #include <linux/pci.h>
++#include <linux/resource.h>
++#include <linux/platform_device.h>
+ #include <asm/mach-ath79/ar71xx_regs.h>
+ #include <asm/mach-ath79/ath79.h>
+ #include <asm/mach-ath79/irq.h>
+@@ -110,21 +112,88 @@ void __init ath79_pci_set_plat_dev_init(
+ 	ath79_pci_plat_dev_init = func;
+ }
+ 
+-int __init ath79_register_pci(void)
++static struct platform_device *
++ath79_register_pci_ar71xx(void)
+ {
+-	if (soc_is_ar71xx())
+-		return ar71xx_pcibios_init();
++	struct platform_device *pdev;
++	struct resource res[2];
++
++	memset(res, 0, sizeof(res));
+ 
+-	if (soc_is_ar724x())
+-		return ar724x_pcibios_init(ATH79_CPU_IRQ_IP2);
++	res[0].name = "cfg_base";
++	res[0].flags = IORESOURCE_MEM;
++	res[0].start = AR71XX_PCI_CFG_BASE;
++	res[0].end = AR71XX_PCI_CFG_BASE + AR71XX_PCI_CFG_SIZE - 1;
++
++	res[1].flags = IORESOURCE_IRQ;
++	res[1].start = ATH79_CPU_IRQ_IP2;
++	res[1].end = ATH79_CPU_IRQ_IP2;
++
++	pdev = platform_device_register_simple("ar71xx-pci", -1,
++					       res, ARRAY_SIZE(res));
++	return pdev;
++}
+ 
+-	if (soc_is_ar9342() || soc_is_ar9344()) {
++static struct platform_device *
++ath79_register_pci_ar724x(int id,
++			  unsigned long cfg_base,
++			  unsigned long ctrl_base,
++			  int irq)
++{
++	struct platform_device *pdev;
++	struct resource res[3];
++
++	memset(res, 0, sizeof(res));
++
++	res[0].name = "cfg_base";
++	res[0].flags = IORESOURCE_MEM;
++	res[0].start = cfg_base;
++	res[0].end = cfg_base + AR724X_PCI_CFG_SIZE - 1;
++
++	res[1].name = "ctrl_base";
++	res[1].flags = IORESOURCE_MEM;
++	res[1].start = ctrl_base;
++	res[1].end = ctrl_base + AR724X_PCI_CTRL_SIZE - 1;
++
++	res[2].flags = IORESOURCE_IRQ;
++	res[2].start = irq;
++	res[2].end = irq;
++
++	pdev = platform_device_register_simple("ar724x-pci", id,
++					       res, ARRAY_SIZE(res));
++	return pdev;
++}
++
++int __init ath79_register_pci(void)
++{
++	struct platform_device *pdev = NULL;
++
++	if (soc_is_ar71xx()) {
++		pdev = ath79_register_pci_ar71xx();
++	} else if (soc_is_ar724x()) {
++		pdev = ath79_register_pci_ar724x(-1,
++						 AR724X_PCI_CFG_BASE,
++						 AR724X_PCI_CTRL_BASE,
++						 ATH79_CPU_IRQ_IP2);
++	} else if (soc_is_ar9342() ||
++		   soc_is_ar9344()) {
+ 		u32 bootstrap;
+ 
+ 		bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+-		if (bootstrap & AR934X_BOOTSTRAP_PCIE_RC)
+-			return ar724x_pcibios_init(ATH79_IP2_IRQ(0));
++		if ((bootstrap & AR934X_BOOTSTRAP_PCIE_RC) == 0)
++			return -ENODEV;
++
++		pdev = ath79_register_pci_ar724x(-1,
++						 AR724X_PCI_CFG_BASE,
++						 AR724X_PCI_CTRL_BASE,
++						 ATH79_IP2_IRQ(0));
++	} else {
++		/* No PCI support */
++		return -ENODEV;
+ 	}
+ 
+-	return -ENODEV;
++	if (!pdev)
++		pr_err("unable to register PCI controller device\n");
++
++	return pdev ? 0 : -ENODEV;
+ }
-- 
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