arch/arm/mach-at91/Makefile.boot - linux - Git at Google

 # Note: the following conditions must always be true:
 #   ZRELADDR == virt_to_phys(TEXTADDR)
 #   PARAMS_PHYS must be within 4MB of ZRELADDR
 #   INITRD_PHYS must be in RAM

    zreladdr-y	+= 0x20008000
 params_phys-y	:= 0x20000100
 initrd_phys-y	:= 0x20410000
	# Note: the following conditions must always be true:
	# ZRELADDR == virt_to_phys(TEXTADDR)
	# PARAMS_PHYS must be within 4MB of ZRELADDR
	# INITRD_PHYS must be in RAM

	zreladdr-y += 0x20008000
	params_phys-y := 0x20000100
	initrd_phys-y := 0x20410000