leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: EXYNOS: change the PHYSMEM_BITS and SECTION_SIZE

Browse Source 
On EXYNOS5440 there is DRAM on the 36-bit address range. Hence
this patch converts the MAX_PHYSMEM_BITS macro to 36 if LPAE is
enabled for the ARM architecture.

The conventional section size on EXYNOS is 256M due to sparsemem.
Since EXYNOS5440 has memory in multiples of 1G in 32-bit and 36-bit
range, this has now been modified to 31.

Signed-off-by: Subash Patel <subash.rp@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Subash Patel 2013-07-16 12:42:13 +09:00 committed by Kukjin Kim
parent e085cad6c6
commit ea27617637
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/mach-exynos/include/mach/memory.h
View File

@ -15,8 +15,13 @@
#define PLAT_PHYS_OFFSET UL(0x40000000)
#ifndef CONFIG_ARM_LPAE
/* Maximum of 256MiB in one bank */
#define MAX_PHYSMEM_BITS 32
#define SECTION_SIZE_BITS 28
#else
#define MAX_PHYSMEM_BITS 36
#define SECTION_SIZE_BITS 31
#endif
#endif /* __ASM_ARCH_MEMORY_H */