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48694da292
* Makefile.am, README, configure.ac, new_exception_processing/cpu.h, shared/include/cpu.h, shared/include/cpuIdent.c, shared/src/cache.c: Added mpc8260 support.
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* cpuIdent.c -- Cpu identification code
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*
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* Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
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*
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* Added MPC8260 Andy Dachs <a.dachs@sstl.co.uk>
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* Surrey Satellite Technology Limited
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*
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* The license and distribution terms for this file may be
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* found in found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*
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*/
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#include <libcpu/spr.h>
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#include <bspIo.h>
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/*
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* Generate inline code to read Processor Version Register
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*/
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SPR_RO(PVR)
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ppc_cpu_id_t current_ppc_cpu = PPC_UNKNOWN;
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ppc_cpu_revision_t current_ppc_revision = 0xff;
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ppc_cpu_id_t get_ppc_cpu_type()
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{
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unsigned int pvr = (_read_PVR() >> 16);
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current_ppc_cpu = (ppc_cpu_id_t) pvr;
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switch (pvr) {
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case PPC_601:
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case PPC_603:
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case PPC_603ev:
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case PPC_604:
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case PPC_750:
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case PPC_604e:
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case PPC_604r:
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case PPC_620:
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case PPC_860:
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case PPC_8260:
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current_ppc_cpu = (ppc_cpu_id_t) pvr;
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return current_ppc_cpu;
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default:
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printk("Unknown PVR value of 0x%x. Please add it to <libcpu/powerpc/shared/cpu.h>\n", pvr );
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return PPC_UNKNOWN;
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}
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}
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ppc_cpu_revision_t get_ppc_cpu_revision()
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{
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ppc_cpu_revision_t rev = (ppc_cpu_revision_t) (_read_PVR() & 0xffff);
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current_ppc_revision = rev;
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return rev;
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}
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