i.MX51 & MMU

Sascha Hauer s.hauer at pengutronix.de
Thu Feb 24 03:39:25 EST 2011

Hi Eric,

On Wed, Feb 23, 2011 at 09:34:46PM +0100, Eric Benard wrote:
> Hi,
> has anyone recently tested barebox master on a babbage board with
> MMU enabled ? Here (not on a babbage, with a TO2 i.MX515 with 1 bank
> of DDR2), enabling MMU crash the board (which works fine with
> barebox with MMU disabled and with Linux 2.6.38-rc6 so the hardware
> seems not to be the root of the problem).

The memory space of the i.MX51 is a bit tight. It may be that you shadow
registers with the dma coherent memory space. Can you please post your
mmu setup code sniplet?
The babbage works with mmu enabled.


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