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* Add variable CPU clock for MPC859/866 systems (so far only TQM866M):

Browse source 
see doc/README.MPC866 for details;
  implement workaround for "SIU4" and "SIU9" silicon bugs on MPC866;
  calculate CPU clock frequency from PLL register values.

* Add support for 128 MB RAM on TQM8xxL/M modules
This commit is contained in:
wdenk 2004-01-24 20:25:54 +00:00
parent ef978730dc
commit c178d3da6f
11 changed files with 392 additions and 157 deletions
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4
cpu/mpc8xx/cpu_init.c
View file

@ -42,7 +42,9 @@ void cpu_init_f (volatile immap_t * immr)
{
#ifndef CONFIG_MBX
volatile memctl8xx_t *memctl = &immr->im_memctl;
# ifdef CFG_PLPRCR
ulong mfmask;
# endif
#endif
ulong reg;
@ -92,6 +94,7 @@ void cpu_init_f (volatile immap_t * immr)
*
* For newer (starting MPC866) chips PLPRCR layout is different.
*/
#ifdef CFG_PLPRCR
if (get_immr(0xFFFF) >= MPC8xx_NEW_CLK)
mfmask = PLPRCR_MFACT_MSK;
else
@ -105,6 +108,7 @@ void cpu_init_f (volatile immap_t * immr)
reg |= CFG_PLPRCR; /* reset control bits */
}
immr->im_clkrst.car_plprcr = reg;
#endif
/*
* Memory Controller: