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path: root/target/linux/ar71xx/patches-3.2/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch
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Diffstat (limited to 'target/linux/ar71xx/patches-3.2/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch')
-rw-r--r--target/linux/ar71xx/patches-3.2/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch132
1 files changed, 132 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.2/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch b/target/linux/ar71xx/patches-3.2/108-MIPS-ath79-use-io-accessor-macros-in-pci-ar724x.c.patch
new file mode 100644
index 0000000..adc7f18
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/108-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;