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>
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index b97f529..41febc7 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -201,6 +201,11 @@
#ifdef CONFIG_FOOTBRIDGE_ADDIN
+static inline unsigned long fb_bus_sdram_offset(void)
+{
+ return *CSR_PCISDRAMBASE & 0xfffffff0;
+}
+
/*
* These two functions convert virtual addresses to PCI addresses and PCI
* addresses to virtual addresses. Note that it is only legal to use these
@@ -210,14 +215,13 @@
{
WARN_ON(res < PAGE_OFFSET || res >= (unsigned long)high_memory);
- return (res - PAGE_OFFSET) + (*CSR_PCISDRAMBASE & 0xfffffff0);
+ return res + (fb_bus_sdram_offset() - PAGE_OFFSET);
}
EXPORT_SYMBOL(__virt_to_bus);
unsigned long __bus_to_virt(unsigned long res)
{
- res -= (*CSR_PCISDRAMBASE & 0xfffffff0);
- res += PAGE_OFFSET;
+ res = res - (fb_bus_sdram_offset() - PAGE_OFFSET);
WARN_ON(res < PAGE_OFFSET || res >= (unsigned long)high_memory);
@@ -225,4 +229,16 @@
}
EXPORT_SYMBOL(__bus_to_virt);
+unsigned long __pfn_to_bus(unsigned long pfn)
+{
+ return __pfn_to_phys(pfn) + (fb_bus_sdram_offset() - PHYS_OFFSET));
+}
+EXPORT_SYMBOL(__pfn_to_bus);
+
+unsigned long __bus_to_pfn(unsigned long bus)
+{
+ return __phys_to_pfn(bus - (fb_bus_sdram_offset() - PHYS_OFFSET));
+}
+EXPORT_SYMBOL(__bus_to_pfn);
+
#endif