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powerpc/fsl-booke: Cleanup init/exception setup to be runtime

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We currently have a few variants of fsl-booke processors (e500v1, e500v2,
e500mc, and e200).  They all have minor differences that we had previously
been handling via ifdefs.

To move towards having this support the following changes have been made:

* PID1, PID2 only exist on e500v1 & e500v2 and should not be accessed on
  e500mc or e200.  We use MMUCFG[NPIDS] to determine which case we are
  since we only touch PID1/2 in extremely early init code.

* Not all IVORs exist on all the processors so introduce cpu_setup
  functions for each variant to setup the proper IVORs that are either
  unique or exist but have some variations between the processors

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2009-01-08 08:31:20 -06:00
parent 0585a155a7
commit 105c31df6f
6 changed files with 98 additions and 30 deletions
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6
arch/powerpc/kernel/head_booke.h
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@@ -70,10 +70,10 @@
/* only on e500mc/e200 */
#define DEBUG_STACK_BASE dbgirq_ctx
#ifdef CONFIG_PPC_E500MC
#define DEBUG_SPRG SPRN_SPRG9
#else
#ifdef CONFIG_E200
#define DEBUG_SPRG SPRN_SPRG6W
#else
#define DEBUG_SPRG SPRN_SPRG9
#endif
#define EXC_LVL_FRAME_OVERHEAD (THREAD_SIZE - INT_FRAME_SIZE - EXC_LVL_SIZE)