The Allied Telesis AR550S board is based on the MPC8540ADS (2009.11) board source

Global memory map:

	0x00000000 - 0x7fffffff     2G	DDR SDRAM

	0x80000000 - 0xbfffffff     1G	Unused

	0xc0000000 - 0xefffffff   768M	Unused
	0xf0000000 - 0xffffffff   256M	Local Bus


Local Bus memory map (256M):

	0xf0000000 - 0xf7ffffff   128M	Unused

	0xf8000000 - 0xfbffffff    64M	Flash			CS1

	0xfc000000 - 0xff6fffff    32M	Unused
	0xfe000000 - 0xfe07ffff   512K	PIC0			CS2
	0xfe080000 - 0xfe0fffff   512K	PIC1			CS3
	0xfe100000 - 0xff6fffff    22M	Unused

	0xff700000 - 0xff7fffff     1M	CCSR
	0xff800000 - 0xffefffff     7M	Unused
	0xfff00000 - 0xffffffff     1M	Flash Boot ROM		CS0

	0xff700000 - 0xff7fffff     1M	OutOfReset CCSR
	0xff800000 - 0xffffffff     8M	OutOfReset Boot ROM LAW
	0xfffff000 - 0xffffffff     4K	OutOfReset Boot ROM TLB
		     0xfffffffc     4B	OutOfReset Istruction Pointer
