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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-10-01 21:38:23 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-10-01 21:42:08 +0100
commit4ba3f7c55938d7e51e23c1feedd035dd46716ae7 (patch)
tree088878e8ee5b019542b0295f3717885526d4a2b8 /arch/arm/mach-lh7a40x
parent07a2f737ba1d73ace591dd03c512bb0dd63f6785 (diff)
[ARM] mm: allow LH7A40x to use sparsemem
Enable Sparsemem support for LH7A40x SoCs, while still allowing the existing discontig support for the time being. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-lh7a40x')
-rw-r--r--arch/arm/mach-lh7a40x/Kconfig13
-rw-r--r--arch/arm/mach-lh7a40x/include/mach/memory.h6
2 files changed, 12 insertions, 7 deletions
diff --git a/arch/arm/mach-lh7a40x/Kconfig b/arch/arm/mach-lh7a40x/Kconfig
index 6f4c6a1798c1..9be7466e346c 100644
--- a/arch/arm/mach-lh7a40x/Kconfig
+++ b/arch/arm/mach-lh7a40x/Kconfig
@@ -40,23 +40,22 @@ config LPD7A40X_CPLD_SSP
bool
config LH7A40X_CONTIGMEM
- bool "Disable NUMA Support"
- depends on ARCH_LH7A40X
+ bool "Disable NUMA/SparseMEM Support"
help
Say Y here if your bootloader sets the SROMLL bit(s) in
the SDRAM controller, organizing memory as a contiguous
- array. This option will disable CONFIG_DISCONTIGMEM and
- force the kernel to manage all memory in one node.
+ array. This option will disable sparse memory support
+ and force the kernel to manage all memory in one node.
- Setting this option incorrectly may prevent the kernel from
- booting. It is OK to leave it N.
+ Setting this option incorrectly may prevent the kernel
+ from booting. It is OK to leave it N.
For more information, consult
<file:Documentation/arm/Sharp-LH/SDRAM>.
config LH7A40X_ONE_BANK_PER_NODE
bool "Optimize NUMA Node Tables for Size"
- depends on ARCH_LH7A40X && !LH7A40X_CONTIGMEM
+ depends on !LH7A40X_CONTIGMEM
help
Say Y here to produce compact memory node tables. By
default pairs of adjacent physical RAM banks are managed
diff --git a/arch/arm/mach-lh7a40x/include/mach/memory.h b/arch/arm/mach-lh7a40x/include/mach/memory.h
index f7107b4c197a..1da14ff66c93 100644
--- a/arch/arm/mach-lh7a40x/include/mach/memory.h
+++ b/arch/arm/mach-lh7a40x/include/mach/memory.h
@@ -73,4 +73,10 @@
#endif
+/*
+ * Sparsemem version of the above
+ */
+#define MAX_PHYSMEM_BITS 32
+#define SECTION_SIZE_BITS 24
+
#endif