On Thu, May 24, 2012 at 7:17 PM, Sascha Hauer <s.hauer@pengutronix.de> wrote:

On Thu, May 24, 2012 at 03:18:13PM +0200, Roberto Nibali wrote:
> Hi Eric
>
> On Thu, May 24, 2012 at 2:58 PM, Eric Bénard <eric@eukrea.com> wrote:
>
>
>

> I support WEIM configuration is done in the low level part, isn't it?

You don't need to do it in lowlevel init, just before registering the
cfi device is enough. Usually it's good habit to do only the absolutely
necessary things in lowlevel init. Doing things later increases the
chance that you get useful debug output when something goes wrong

I read the different board initialization routines over and over again, but can't find a common pattern. From what I see the lowlevel_init (which has been converted nicely into a C file), only AIPS, MAX, MPLL core clock, all clocks, SDRAM are initialized, but I have seen AIPS and MAX setups in core_init functions (eukrea_cpuimx35.c), as well as clock setups in console_init and other places. So, what's the bare minimum in lowlevel to set up? SDRAM/MDDR? What's the order of things?

I am merely asking because I have come a long way trying to debug an issue with weird I/O and clock behaviour on the ESDHC and other parts of my mx25 device.

Thanks and best regards

Roberto