tree 25fb85eb407389adf81419c045415882090bb1f1
parent 89ae9753aef160c2f7bcecec21a7c4a6bc4c9b9b
author Michal Simek <monstr@monstr.eu> 1268639307 +0100
committer Michal Simek <monstr@monstr.eu> 1270103903 +0200

microblaze: Support systems without lmb bram

When the system has no lmb bram, main memory should be start from
zero because of microblaze vectors.

DTS fragment could look like:
	DDR2_SDRAM: memory@0 {
		device_type = "memory";
		reg = < 0x0 0x10000000 >;
	} ;

Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused
that kernel physical start address will be zero. On reset vector place
will be jump to 0x100 and on 0x100 starts kernel text.

You have to solve how to load the kernel before cpu starts.
Tested with XMD.

Signed-off-by: Michal Simek <monstr@monstr.eu>