[PATCH] ARM: enable MMU in pbl

Sascha Hauer s.hauer at pengutronix.de
Sat Sep 22 06:21:14 EDT 2012


On Fri, Sep 21, 2012 at 04:46:31PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 15:23 Fri 21 Sep     , Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 21:56 Thu 20 Sep     , Sascha Hauer wrote:
> > > On Thu, Sep 20, 2012 at 08:52:43PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > On 16:30 Sun 12 Aug     , Sascha Hauer wrote:
> > > > > The following enables the MMU during decompression which speeds up
> > > > > things significantly.
> > > > 
> > > > Atmel board does not boot
> > > > 
> > > > barebox at Atmel at91sam9m10g45-ek:/ dhcp && nfs
> > > > /opt/work/barebox/build/sam9m10g45ek-compressed/arch/arm/pbl/zbarebox.bin &&
> > > > bootm zbarebox.bin
> > > > phy0: Link is up - 100/Full
> > > > DHCP client bound to address 192.168.200.43
> > > > 
> > > > Filename
> > > > '/opt/work/barebox/build/sam9m10g45ek-compressed/arch/arm/pbl/zbarebox.bin'.
> > > > 	[#################################################################]
> > > > 
> > > > without MMU boot fine
> > > 
> > > does it work with the v1 version of this patch?
> > work but can use nand :(
> work but can *not* use nand :(

The at91 port depends on at91bootstrap as first stage loader, right? So
booting from NAND seems to need out of tree code. I can't help you then.

Sascha


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