[U-Boot] SPI on PPC MPC85xx

[Stefan Roese <sr@denx.de>]

Hi Matthias,

On Wednesday 27 October 2010 08:55:42 Matthias Dunda wrote:
> unfortunately I have to push this message, as I received no comment on it,
> yet.
> 
> Is there a reason why the immap_t is not implemented for mpc85xx?
> 
> I tried to copy it from mpc8360 but there are so many dependent mpc83xx
> datatypes in that struct that I postponed the work on that, because I
> think it'll lead to no success...
> 
> Even trying to use the soft SPI fails, because first thing the code does is
> using that immap_t datatype... :-(
> 
> Does anyone have a comment on this?

I took a quick glance at this. There are different versions of SPI controllers 
in the MPC8xxx SoC's. As it seems mpc8xxx_spi.c does "only" support the "CPU-
mode" (meaning non-CPM/QE-mode) Freescale SPI controllers. This controller is 
implemented for example in the MPC8349. For your SoC (MPC8568) you need to 
implement the QE-mode which is currently not supported.
 
Cheers,
Stefan

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