MIPS_REVISION_REG   52 arch/mips/include/asm/mips-boards/generic.h #define MIPS_REVISION_CORID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 10) & 0x3f)
MIPS_REVISION_REG   66 arch/mips/include/asm/mips-boards/generic.h #define MIPS_REVISION_SCONID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 24) & 0xff)