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authorCatalin Marinas <catalin.marinas@arm.com>2008-12-01 14:54:55 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2008-12-01 14:54:55 +0000
commit70bb62f8ecdda2d172b05d33b0e6750e3fe6d1c7 (patch)
tree40342bddef6912e4f6fee821f2fb2e4e84b4382b /arch/arm/mach-realview/include
parent877d1f338912c1bf49a026eeca1d411755efece5 (diff)
RealView: Allow PHYS_OFFSET at 0x70000000
RealView boards like PB11MPCore have 512MB of RAM available contiguously at 0x70000000. Half of the memory is mirrored at 0x00000000 for backwards compatibility. This patch adds the CONFIG_REALVIEW_HIGH_PHYS_OFFSET option option to change the physical base address so that the full amount of RAM is available to Linux. Note that the EB board has 256MB of RAM also mirrored at 0x70000000, the only board without this feature being PB1176. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/mach-realview/include')
-rw-r--r--arch/arm/mach-realview/include/mach/memory.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/include/mach/memory.h b/arch/arm/mach-realview/include/mach/memory.h
index 0e673483a14..759ed10d74f 100644
--- a/arch/arm/mach-realview/include/mach/memory.h
+++ b/arch/arm/mach-realview/include/mach/memory.h
@@ -23,7 +23,11 @@
/*
* Physical DRAM offset.
*/
+#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
+#define PHYS_OFFSET UL(0x70000000)
+#else
#define PHYS_OFFSET UL(0x00000000)
+#endif
/*
* Virtual view <-> DMA view memory address translations