On Wed, May 7, 2008 at 6:49 AM, Fabio Tosetto <[EMAIL PROTECTED]> wrote:
>
> I've tried to port my exesting configurations to the powerpc tree but some
> configurations files are missing.
First, create a new .dts file for your board in arch/powerpc/boot/dts.
(just copy the lite5200.dts file). Modify the .dts to have your
board's name (in the form "<vendor>,<boardname>") in the compatible
and model properties.
Next, add your boards name to the list of boards in
arch/powerpc/platforms/52xx/mpc5200_simple.c.
> I need to set PSC3 - PSC4 in uart mode:
> before in file *arch/ppc/platforms/lite5200.c* I added
>
> struct mpc52xx_psc_func mpc52xx_psc_functions[] = {
> { .id = 3,
> .func = "uart",
> },
> { .id = 4,
> .func = "uart",
> },
> { .id = -1, /* End entry */
> .func = NULL,
> }
> };
Edit your boards .dts file and uncomment PSCs 3 and 4. Comment out
PSC1 if you aren't using it.
> I need to set PSC4 as a low level debug: *
> *before in file *arch/ppc/platforms/lite5200.h *I added
>
> #define MPC52xx_PF_CONSOLE_PORT 4 /* PSC4 */
I don't think we have any early debug enabled yet in arch/powerpc for
the mpc5200.
> Finally I need to set the virtual memory translation on a range of 128 MB:
> before in file *arch/ppc/kernel/head.S *I added
>
> /*ori r11,r11,BL_128M<<2|0x2 set up BAT registers for 604 */
>
> ori r11,r11,BL_128M<<2|0x2 /* set up BAT registers for 604 */
>
> could you please explain me how to do the same operations in powerpc tree??
New file is arch/powerpc/kernel/head_32.S. I don't think that is the
cleanest way to do it though. Why do you need to change the BAT
mapping from 256 to 128?
Cheers,
g.
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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