[U-Boot-Users] Bug in AT91RM9200: icache not enabled!
luc.paugam at thomson.net
Wed Mar 30 09:19:02 CEST 2005
I saw your patch and tried it. Thanks for pointing out that I-Cache
However, isn't it too dangerous to enable D-Cache too?
Because usually U-Boot recommends to disable it?
Regards - Luc
From: u-boot-users-admin at lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf Of Steven
Sent: dimanche 13 mars 2005 17:00
To: u-boot-users at lists.sourceforge.net
Subject: Re: [U-Boot-Users] Bug in AT91RM9200: icache not enabled!
>>while finding out why the loading of my FPGA takes so long with the
>>version of U-Boot I noticed that the icache for the AT91RM9200 is not
>>although icache_enable() is called in cpu/at91rm9200/start.S:
>>Please comment on this. I am willing to sent appropriate patches.
> Please send a patch so I can test how it works.
* Patch by Steven Scholz, 13 March 2005:
fix cache enabling for AT91RM9200
Please remove the line
orr r0, r0, #0x00000004 @ set bit 3 (C) D-Cache
if we don't need the data cache for the AT91RM9200. I am not sure if
help for CRCs or unzipping...
More information about the U-Boot