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/*
* cpuIdent.c -- Cpu identification code
*
* Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*
*/
#include <libcpu/spr.h>
#include <bspIo.h>
/*
* Generate inline code to read Processor Version Register
*/
SPR_RO(PVR)
ppc_cpu_id_t current_ppc_cpu = PPC_UNKNOWN;
ppc_cpu_revision_t current_ppc_revision = 0xff;
ppc_cpu_id_t get_ppc_cpu_type()
{
unsigned int pvr = (_read_PVR() >> 16);
current_ppc_cpu = (ppc_cpu_id_t) pvr;
switch (pvr) {
case PPC_601:
case PPC_603:
case PPC_603ev:
case PPC_604:
case PPC_750:
case PPC_604e:
case PPC_604r:
case PPC_620:
case PPC_860:
current_ppc_cpu = (ppc_cpu_id_t) pvr;
return current_ppc_cpu;
default:
printk("Unknown PVR value of 0x%x. Please add it to <libcpu/powerpc/shared/cpu.h>\n", pvr );
return PPC_UNKNOWN;
}
}
ppc_cpu_revision_t get_ppc_cpu_revision()
{
ppc_cpu_revision_t rev = (ppc_cpu_revision_t) (_read_PVR() & 0xffff);
current_ppc_revision = rev;
return rev;
}
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