From 105c31df6fc5a424b480321763b5598cf3817821 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 8 Jan 2009 08:31:20 -0600 Subject: powerpc/fsl-booke: Cleanup init/exception setup to be runtime 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 --- arch/powerpc/kernel/cpu_setup_fsl_booke.S | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/powerpc/kernel/cpu_setup_fsl_booke.S (limited to 'arch/powerpc/kernel/cpu_setup_fsl_booke.S') diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S new file mode 100644 index 000000000000..eb4b9adcedb4 --- /dev/null +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S @@ -0,0 +1,31 @@ +/* + * This file contains low level CPU setup functions. + * Kumar Gala + * Copyright 2009 Freescale Semiconductor, Inc. + * + * Based on cpu_setup_6xx code by + * Benjamin Herrenschmidt + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include +#include +#include + +_GLOBAL(__setup_cpu_e200) + /* enable dedicated debug exception handling resources (Debug APU) */ + mfspr r3,SPRN_HID0 + ori r3,r3,HID0_DAPUEN@l + mtspr SPRN_HID0,r3 + b __setup_e200_ivors +_GLOBAL(__setup_cpu_e500v1) +_GLOBAL(__setup_cpu_e500v2) + b __setup_e500_ivors +_GLOBAL(__setup_cpu_e500mc) + b __setup_e500mc_ivors + -- cgit v1.2.3