xref: /openbmc/u-boot/board/freescale/ls2080a/README (revision dd1033e4)
1Freescale ls2080a_emu
2
3This is a emulator target with limited peripherals.
4
5Memory map from core's view
6
70x00_0000_0000 .. 0x00_000F_FFFF	Boot Rom
80x00_0100_0000 .. 0x00_0FFF_FFFF	CCSR
90x00_1800_0000 .. 0x00_181F_FFFF	OCRAM
100x00_3000_0000 .. 0x00_3FFF_FFFF	IFC region #1
110x00_8000_0000 .. 0x00_FFFF_FFFF	DDR region #1
120x05_1000_0000 .. 0x05_FFFF_FFFF	IFC region #2
130x80_8000_0000 .. 0xFF_FFFF_FFFF	DDR region #2
14
15Other addresses are either reserved, or not used directly by U-Boot.
16This list should be updated when more addresses are used.
17
18Booting Linux flavors which do not support 48-bit VA (< Linux 3.18)
19-------------------------------------------------------------------
20One needs to use appropriate bootargs to boot Linux flavors which do
21not support 48-bit VA (for e.g. < Linux 3.18) by appending mem=2048M, as shown
22below:
23
24=> setenv bootargs 'console=ttyS1,115200 root=/dev/ram
25   earlycon=uart8250,mmio,0x21c0600,115200 default_hugepagesz=2m hugepagesz=2m
26   hugepages=16 mem=2048M'
27
28