diff options
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.patch | 132 |
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 000000000..adc7f1871 --- /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; |