ARM: fix clps711x, footbridge, integrator, ixp2000, ixp2300 and s3c build bug

Anders Grafström reports that footbridge fails to build after 1c4a4f4.
Fix this by adding the necessary definitions for __pfn_to_bus and
__bus_to_pfn.

Reported-by: Anders Grafström <anders.grafstrom@netinsight.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 9 insertions, 10 deletions

diff --git a/arch/arm/mach-ixp23xx/include/mach/memory.h b/arch/arm/mach-ixp23xx/include/mach/memory.h
index fdd138706c70..94a3a86cfeb8 100644
--- a/arch/arm/mach-ixp23xx/include/mach/memory.h
+++ b/arch/arm/mach-ixp23xx/include/mach/memory.h
@@ -19,16 +19,15 @@
  */
 #define PHYS_OFFSET             (0x00000000)
 
-#define __virt_to_bus(v)                                                \
-        ({ unsigned int ret;                                            \
-        ret = ((__virt_to_phys(v) - 0x00000000) +                       \
-         (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0));      \
-        ret; })
-
-#define __bus_to_virt(b)                                                \
-        ({ unsigned int data;                                           \
-        data = *((volatile int *)IXP23XX_PCI_SDRAM_BAR);                \
-         __phys_to_virt((((b - (data & 0xfffffff0)) + 0x00000000))); })
+#define IXP23XX_PCI_SDRAM_OFFSET (*((volatile int *)IXP23XX_PCI_SDRAM_BAR) & 0xfffffff0))
+
+#define __phys_to_bus(x)        ((x) + (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET))
+#define __bus_to_phys(x)        ((x) - (IXP23XX_PCI_SDRAM_OFFSET - PHYS_OFFSET))
+
+#define __virt_to_bus(v)        __phys_to_bus(__virt_to_phys(v))
+#define __bus_to_virt(b)        __phys_to_virt(__bus_to_phys(b))
+#define __pfn_to_bus(p)         __phys_to_bus(__pfn_to_phys(p))
+#define __bus_to_pfn(b)         __phys_to_pfn(__bus_to_phys(b))
 
 #define arch_is_coherent()      1