* Add variable CPU clock for MPC859/866 systems (so far only TQM866M):
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
diff --git a/cpu/mpc8xx/cpu_init.c b/cpu/mpc8xx/cpu_init.c
index cbf2126..c7716dd 100644
--- a/cpu/mpc8xx/cpu_init.c
+++ b/cpu/mpc8xx/cpu_init.c
@@ -42,7 +42,9 @@
{
#ifndef CONFIG_MBX
volatile memctl8xx_t *memctl = &immr->im_memctl;
+# ifdef CFG_PLPRCR
ulong mfmask;
+# endif
#endif
ulong reg;
@@ -92,6 +94,7 @@
*
* 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 @@
reg |= CFG_PLPRCR; /* reset control bits */
}
immr->im_clkrst.car_plprcr = reg;
+#endif
/*
* Memory Controller:
