u-boot

mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-05 20:54:31 +00:00

History

Simon Glass 3eace37e50 arm: freescale: Rename initdram() to fsl_initdram() This function name shadows a global name but is in fact different. This is very confusing. Rename it to help with the following refactoring. Signed-off-by: Simon Glass <sjg@chromium.org>		2017-04-12 13:28:32 -04:00
..
ddr.c	arm: freescale: Rename initdram() to fsl_initdram()	2017-04-12 13:28:32 -04:00
ddr.h	armv8: LS2080A: Rename LS2085A to reflect LS2080A	2015-11-30 08:53:04 -08:00
Kconfig	NXP: Introduce board/freescale/common/Kconfig and migrate CHAIN_OF_TRUST	2017-01-24 10:33:59 -05:00
ls2080a.c	armv8: layerscape: Update early MMU for DDR after initialization	2017-03-14 08:44:03 -07:00
MAINTAINERS	armv8: fsl-layerscape: Add NXP LS2088A SoC support	2016-11-22 11:37:54 -08:00
Makefile	armv8: LS2080A: Rename LS2085A to reflect LS2080A	2015-11-30 08:53:04 -08:00
README	Use correct spelling of "U-Boot"	2016-02-06 12:00:59 +01:00

README

Freescale ls2080a_emu

This is a emulator target with limited peripherals.

Memory map from core's view

0x00_0000_0000 .. 0x00_000F_FFFF	Boot Rom
0x00_0100_0000 .. 0x00_0FFF_FFFF	CCSR
0x00_1800_0000 .. 0x00_181F_FFFF	OCRAM
0x00_3000_0000 .. 0x00_3FFF_FFFF	IFC region #1
0x00_8000_0000 .. 0x00_FFFF_FFFF	DDR region #1
0x05_1000_0000 .. 0x05_FFFF_FFFF	IFC region #2
0x80_8000_0000 .. 0xFF_FFFF_FFFF	DDR region #2

Other addresses are either reserved, or not used directly by U-Boot.
This list should be updated when more addresses are used.

Booting Linux flavors which do not support 48-bit VA (< Linux 3.18)
-------------------------------------------------------------------
One needs to use appropriate bootargs to boot Linux flavors which do
not support 48-bit VA (for e.g. < Linux 3.18) by appending mem=2048M, as shown
below:

=> setenv bootargs 'console=ttyS1,115200 root=/dev/ram
   earlycon=uart8250,mmio,0x21c0600,115200 default_hugepagesz=2m hugepagesz=2m
   hugepages=16 mem=2048M'