MEMORY_START      111 arch/powerpc/include/asm/page.h #define MEMORY_START	0UL
MEMORY_START      113 arch/powerpc/include/asm/page.h #define MEMORY_START	memstart_addr
MEMORY_START      115 arch/powerpc/include/asm/page.h #define MEMORY_START	(PHYSICAL_START + PAGE_OFFSET - KERNELBASE)