Hi,Denk,

I resolved the 1GB DDR problem, the reason is that I did not define the CONFIG_VERY_BIG_RAM. The u-boot-1.2.0 will visit the address above 0x10000000(256MB) if this CONFIG_VERY_BIG_RAM is not defined,then the u-boot-1.2.0 is dead.

Thank you very much.

From: Wolfgang Denk wd@denx.de Reply-To: To: guojin02@tsinghua.org.cn Subject: Re: [U-Boot-Users] the question about u-boot for 1GB DDR-1? Date:Tue, 20 Nov 2007 09:59:55 +0100

In message 395543860.30931@tsinghua.org.cn you wrote:

...

I plug in 1GB DDR-1 on DIMM-184 slot, my cpu is MPC8360, the u-boot just only visit the address from 0x00000000 to 0x10000000(256MB), it can not visit the address above 0x10000000, could you tell me why? and how to reslove this

problem?

This has been recently dicussed here, please see the archive.

What exactly is your problem? I think 256MB should be sufficient for anything you want to do in a boot loader (and Linux should then have access to the full memory size).

Best regards,

Wolfgang Denk

-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Q: What do you get when you cross an ethernet with an income statement? A: A local area networth.