[PATCH 3/4] ARM: AT91: Add AT91RM9200 support to DT board

[Jean-Christophe PLAGNIOL-VILLARD]

On 19:08 Fri 12 Oct     , Joachim Eastwood wrote:
> On Fri, Oct 12, 2012 at 6:27 PM, Jean-Christophe PLAGNIOL-VILLARD
> <plagnioj at jcrosoft.com> wrote:
> > On 17:28 Fri 12 Oct     , ludovic.desroches wrote:
> >> Le 10/12/2012 04:22 PM, Jean-Christophe PLAGNIOL-VILLARD a écrit :
> >> >On 00:05 Fri 12 Oct     , Joachim Eastwood wrote:
> >> >>Signed-off-by: Joachim Eastwood <manabian at gmail.com>
> >> >>---
> >> >>
> >> >>Hi,
> >> >>
> >> >>This patch has some potential issues.
> >> >>Before this patch board-dt would fail building when only AT91RM9200 was enabled because at91sam926x_timer symbol would be missing. This patch uses the at91rm9200_timer which
> >> >>will fail if AT91RM9200 is not enabled.
> >> >this need work with ot wtihout rm9200
> 
> btw, to solve the build issue with board-dt in mainline now we need to
> add a select CONFIG_SOC_AT91SAM9 to config MACH_AT91SAM_DT.
> 
> >> >>
> >> >>Any thoughts on solving this? As mention above this bug exists in mainline now.
> >> >duplicate the board-dt with one for rm9200 only
> >> >as rm9200 ans sam9 are 2 distict familly
> >>
> >> Why not adding a new machine descriptor for rm9200 in order to
> >> prevent file duplication?
> > because the soc are different and can only be compile if the timer is enable
> > and I do not want to enable the rm9200 timer on sam9 so instead of a ifdef i
> > the board-dt create a new board is better as we have a 50 lines file
> >
> > with different board_compat and different machine descriptor
> 
> I am okey with either approach, but I would like to hear what Nicolas
> Ferre has to say since he is the on the one that added board-dt. It
> would be nice to have everything in one board DT file, but I
> understand your concern with the RM9200 timer.
> 
> We will also bump into this again on AT91X40 I guess.
simple on x40 forget about it the x40 is no MMU only SoC

so you can not enable  it by default as the all other at91 are use with MMU

I did the necessary to make the board-dt nearly empty and the same for all the
sam9 but the board-dt is sam9 only and need to be keeped this way

Nico will tell you the same

Best Regards,
J.