MPC82xx ADS SCC ports initialisation

[Scott Wood]

On Tue, Jul 10, 2007 at 04:19:51PM +0200, Laurent Pinchart wrote:
> clrbits32(&immap->im_cpmux.cmx_scr, (0x00000007 << (4 - data->clk_tx)));
> clrbits32(&immap->im_cpmux.cmx_scr, (0x00000038 << (4 - data->clk_rx)));
> setbits32(&immap->im_cpmux.cmx_scr, 
>           ((data->clk_tx - 1) << (4 - data->clk_tx)));
> setbits32(&immap->im_cpmux.cmx_scr,
>           ((data->clk_rx - 1) << (4 - data->clk_rx)));
> 
> The shift right-hand operand doesn't seem to be correct. Could anyone confirm 
> this ?

You are correct; it's broken.

> If my assumption is right, could anyone tell me if the MPC82xx 
> processors are actually supported by the powerpc architecture, or if the 
> MPC82xx ADS code is just a non-functional work in progress.

I have a bunch of 8xx/82xx changes pending; I hope to get them cleaned up
before the merge window ends.

> I also noticed that U-Boot doesn't have flatten device tree support for the 
> MPC82xx family.

No, but cuImage for 82xx is on its way.

-Scott