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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-02 00:03:21 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-02 00:03:21 +0400 |
| commit | ee93916efe22f767628f9d25abb8ad8548797336 (patch) | |
| tree | a9f96ac741d683738518a3deac59f73b331e81ca /arch/arm | |
| parent | 07f841b7c587a3cbf481509be09ba5eda05f8d31 (diff) | |
| download | linux-ee93916efe22f767628f9d25abb8ad8548797336.tar.xz | |
[ARM] mm: switch SA1100 to use sparsemem
Tested on Assabet, and Assabet with Neponset's SDRAM at 3328M phys.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/memory.h | 16 |
2 files changed, 7 insertions, 11 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 83106c98755c..b21c93a5f926 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -479,9 +479,7 @@ config ARCH_RPC config ARCH_SA1100 bool "SA1100-based" select ISA - select ARCH_DISCONTIGMEM_ENABLE select ARCH_SPARSEMEM_ENABLE - select ARCH_SELECT_MEMORY_MODEL select ARCH_MTD_XIP select GENERIC_GPIO select GENERIC_TIME diff --git a/arch/arm/mach-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h index 29f639e2afc6..1c127b68581d 100644 --- a/arch/arm/mach-sa1100/include/mach/memory.h +++ b/arch/arm/mach-sa1100/include/mach/memory.h @@ -40,23 +40,21 @@ void sa1111_adjust_zones(int node, unsigned long *size, unsigned long *holes); #define __bus_to_virt(x) __phys_to_virt(x) /* - * Because of the wide memory address space between physical RAM banks on the - * SA1100, it's much convenient to use Linux's NUMA support to implement our - * memory map representation. Assuming all memory nodes have equal access + * Because of the wide memory address space between physical RAM banks on the + * SA1100, it's much convenient to use Linux's SparseMEM support to implement + * our memory map representation. Assuming all memory nodes have equal access * characteristics, we then have generic discontiguous memory support. * - * Of course, all this isn't mandatory for SA1100 implementations with only - * one used memory bank. For those, simply undefine CONFIG_DISCONTIGMEM. - * - * The nodes are matched with the physical memory bank addresses which are - * incidentally the same as virtual addresses. + * The sparsemem banks are matched with the physical memory bank addresses + * which are incidentally the same as virtual addresses. * * node 0: 0xc0000000 - 0xc7ffffff * node 1: 0xc8000000 - 0xcfffffff * node 2: 0xd0000000 - 0xd7ffffff * node 3: 0xd8000000 - 0xdfffffff */ -#define NODE_MEM_SIZE_BITS 27 +#define MAX_PHYSMEM_BITS 32 +#define SECTION_SIZE_BITS 27 /* * Cache flushing area - SA1100 zero bank |