ARM: ks8695: Convert PCI to use generic config accessors

Convert the ks8695 PCI driver to use the generic config access functions.

This changes accesses from __raw_readX/__raw_writeX to readX/writeX
variants.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: linux-arm-kernel@lists.infradead.org

1 files changed, 6 insertions, 71 deletions

diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c
index bb18193b4bac..c1bc4c3716ed 100644
--- a/arch/arm/mach-ks8695/pci.c
+++ b/arch/arm/mach-ks8695/pci.c
@@ -38,8 +38,6 @@
 
 
 static int pci_dbg;
-static int pci_cfg_dbg;
-
 
 static void ks8695_pci_setupconfig(unsigned int bus_nr, unsigned int devfn, unsigned int where)
 {
@@ -59,75 +57,11 @@ static void ks8695_pci_setupconfig(unsigned int bus_nr, unsigned int devfn, unsi
         }
 }
 
-
-/*
- * The KS8695 datasheet prohibits anything other than 32bit accesses
- * to the IO registers, so all our configuration must be done with
- * 32bit operations, and the correct bit masking and shifting.
- */
-
-static int ks8695_pci_readconfig(struct pci_bus *bus,
-                        unsigned int devfn, int where, int size, u32 *value)
-{
-        ks8695_pci_setupconfig(bus->number, devfn, where);
-
-        *value = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
-
-        switch (size) {
-                case 4:
-                        break;
-                case 2:
-                        *value = *value >> ((where & 2) * 8);
-                        *value &= 0xffff;
-                        break;
-                case 1:
-                        *value = *value >> ((where & 3) * 8);
-                        *value &= 0xff;
-                        break;
-        }
-
-        if (pci_cfg_dbg) {
-                printk("read: %d,%08x,%02x,%d: %08x (%08x)\n",
-                        bus->number, devfn, where, size, *value,
-                        __raw_readl(KS8695_PCI_VA +  KS8695_PBCD));
-        }
-
-        return PCIBIOS_SUCCESSFUL;
-}
-
-static int ks8695_pci_writeconfig(struct pci_bus *bus,
-                        unsigned int devfn, int where, int size, u32 value)
+static void __iomem *ks8695_pci_map_bus(struct pci_bus *bus, unsigned int devfn,
+                                        int where)
 {
-        unsigned long tmp;
-
-        if (pci_cfg_dbg) {
-                printk("write: %d,%08x,%02x,%d: %08x\n",
-                        bus->number, devfn, where, size, value);
-        }
-
         ks8695_pci_setupconfig(bus->number, devfn, where);
-
-        switch (size) {
-                case 4:
-                        __raw_writel(value, KS8695_PCI_VA +  KS8695_PBCD);
-                        break;
-                case 2:
-                        tmp = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
-                        tmp &= ~(0xffff << ((where & 2) * 8));
-                        tmp |= value << ((where & 2) * 8);
-
-                        __raw_writel(tmp, KS8695_PCI_VA +  KS8695_PBCD);
-                        break;
-                case 1:
-                        tmp = __raw_readl(KS8695_PCI_VA +  KS8695_PBCD);
-                        tmp &= ~(0xff << ((where & 3) * 8));
-                        tmp |= value << ((where & 3) * 8);
-
-                        __raw_writel(tmp, KS8695_PCI_VA +  KS8695_PBCD);
-                        break;
-        }
-
-        return PCIBIOS_SUCCESSFUL;
+        return KS8695_PCI_VA +  KS8695_PBCD;
 }
 
 static void ks8695_local_writeconfig(int where, u32 value)
@@ -137,8 +71,9 @@ static void ks8695_local_writeconfig(int where, u32 value)
 }
 
 static struct pci_ops ks8695_pci_ops = {
-        .read   = ks8695_pci_readconfig,
-        .write  = ks8695_pci_writeconfig,
+        .map_bus = ks8695_pci_map_bus,
+        .read   = pci_generic_config_read32,
+        .write  = pci_generic_config_write32,
 };
 
 static struct resource pci_mem = {