direct_nvram_write_byte  596 arch/powerpc/platforms/powermac/nvram.c 		ppc_md.nvram_write_val	= direct_nvram_write_byte;
direct_nvram_write_byte  602 arch/powerpc/platforms/powermac/nvram.c 		ppc_md.nvram_write_val	= direct_nvram_write_byte;