ar71xx: add preliminary support for 3.3

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30410 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 132 insertions, 0 deletions

diff --git a/target/linux/ar71xx/patches-3.3/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch b/target/linux/ar71xx/patches-3.3/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch
new file mode 100644
index 0000000000..adc7f18713
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.3/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch
@@ -0,0 +1,132 @@
+From db464f2ad82c03f847d8eabbb8251b5c567e6720 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Fri, 18 Nov 2011 11:52:41 +0100
+Subject: [PATCH 08/35] MIPS: ath79: use io-accessor macros in pci-ar724x.c
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Acked-by: René Bolldorf <xsecute@googlemail.com>
+
+v4: - add an Acked-by tag from René
+v3: - no changes
+v2: - no changes
+---
+ arch/mips/pci/pci-ar724x.c |   38 ++++++++++++++++++++++++--------------
+ 1 files changed, 24 insertions(+), 14 deletions(-)
+
+--- a/arch/mips/pci/pci-ar724x.c
++++ b/arch/mips/pci/pci-ar724x.c
+@@ -11,19 +11,19 @@
+ #include <linux/pci.h>
+ #include <asm/mach-ath79/pci.h>
+ 
+-#define reg_read(_phys)		(*(unsigned int *) KSEG1ADDR(_phys))
+-#define reg_write(_phys, _val)	((*(unsigned int *) KSEG1ADDR(_phys)) = (_val))
+-
+-#define AR724X_PCI_DEV_BASE	0x14000000
++#define AR724X_PCI_CFG_BASE	0x14000000
++#define AR724X_PCI_CFG_SIZE	0x1000
+ #define AR724X_PCI_MEM_BASE	0x10000000
+ #define AR724X_PCI_MEM_SIZE	0x08000000
+ 
+ static DEFINE_SPINLOCK(ar724x_pci_lock);
++static void __iomem *ar724x_pci_devcfg_base;
+ 
+ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where,
+ 			    int size, uint32_t *value)
+ {
+ 	unsigned long flags, addr, tval, mask;
++	void __iomem *base;
+ 
+ 	if (devfn)
+ 		return PCIBIOS_DEVICE_NOT_FOUND;
+@@ -31,25 +31,27 @@ static int ar724x_pci_read(struct pci_bu
+ 	if (where & (size - 1))
+ 		return PCIBIOS_BAD_REGISTER_NUMBER;
+ 
++	base = ar724x_pci_devcfg_base;
++
+ 	spin_lock_irqsave(&ar724x_pci_lock, flags);
+ 
+ 	switch (size) {
+ 	case 1:
+ 		addr = where & ~3;
+ 		mask = 0xff000000 >> ((where % 4) * 8);
+-		tval = reg_read(AR724X_PCI_DEV_BASE + addr);
++		tval = __raw_readl(base + addr);
+ 		tval = tval & ~mask;
+ 		*value = (tval >> ((4 - (where % 4))*8));
+ 		break;
+ 	case 2:
+ 		addr = where & ~3;
+ 		mask = 0xffff0000 >> ((where % 4)*8);
+-		tval = reg_read(AR724X_PCI_DEV_BASE + addr);
++		tval = __raw_readl(base + addr);
+ 		tval = tval & ~mask;
+ 		*value = (tval >> ((4 - (where % 4))*8));
+ 		break;
+ 	case 4:
+-		*value = reg_read(AR724X_PCI_DEV_BASE + where);
++		*value = __raw_readl(base + where);
+ 		break;
+ 	default:
+ 		spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+@@ -66,6 +68,7 @@ static int ar724x_pci_write(struct pci_b
+ 			     int size, uint32_t value)
+ {
+ 	unsigned long flags, tval, addr, mask;
++	void __iomem *base;
+ 
+ 	if (devfn)
+ 		return PCIBIOS_DEVICE_NOT_FOUND;
+@@ -73,27 +76,29 @@ static int ar724x_pci_write(struct pci_b
+ 	if (where & (size - 1))
+ 		return PCIBIOS_BAD_REGISTER_NUMBER;
+ 
++	base = ar724x_pci_devcfg_base;
++
+ 	spin_lock_irqsave(&ar724x_pci_lock, flags);
+ 
+ 	switch (size) {
+ 	case 1:
+-		addr = (AR724X_PCI_DEV_BASE + where) & ~3;
++		addr = where & ~3;
+ 		mask = 0xff000000 >> ((where % 4)*8);
+-		tval = reg_read(addr);
++		tval = __raw_readl(base + addr);
+ 		tval = tval & ~mask;
+ 		tval |= (value << ((4 - (where % 4))*8)) & mask;
+-		reg_write(addr, tval);
++		__raw_writel(tval, base + addr);
+ 		break;
+ 	case 2:
+-		addr = (AR724X_PCI_DEV_BASE + where) & ~3;
++		addr = where & ~3;
+ 		mask = 0xffff0000 >> ((where % 4)*8);
+-		tval = reg_read(addr);
++		tval = __raw_readl(base + addr);
+ 		tval = tval & ~mask;
+ 		tval |= (value << ((4 - (where % 4))*8)) & mask;
+-		reg_write(addr, tval);
++		__raw_writel(tval, base + addr);
+ 		break;
+ 	case 4:
+-		reg_write((AR724X_PCI_DEV_BASE + where), value);
++		__raw_writel(value, (base + where));
+ 		break;
+ 	default:
+ 		spin_unlock_irqrestore(&ar724x_pci_lock, flags);
+@@ -133,6 +138,11 @@ static struct pci_controller ar724x_pci_
+ 
+ int __init ar724x_pcibios_init(void)
+ {
++	ar724x_pci_devcfg_base = ioremap(AR724X_PCI_CFG_BASE,
++					 AR724X_PCI_CFG_SIZE);
++	if (ar724x_pci_devcfg_base == NULL)
++		return -ENOMEM;
++
+ 	register_pci_controller(&ar724x_pci_controller);
+ 
+ 	return PCIBIOS_SUCCESSFUL;