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/*
* cpuIdent.c -- Cpu identification code
*
* Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
*
* Added MPC8260 Andy Dachs <a.dachs@sstl.co.uk>
* Surrey Satellite Technology Limited
*
* 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/cpuIdent.h>
#include <libcpu/spr.h>
#include <rtems/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;
char *get_ppc_cpu_type_name(ppc_cpu_id_t cpu)
{
switch (cpu) {
case PPC_601: return "MPC601";
case PPC_603: return "MPC603";
case PPC_603ev: return "MPC603ev";
case PPC_604: return "MPC604";
/* case PPC_604r: return "MPC604r"; same value as 750 */
case PPC_750: return "MPC750";
case PPC_7400: return "MPC7400";
case PPC_604e: return "MPC604e";
case PPC_620: return "MPC620";
case PPC_860: return "MPC860";
case PPC_8260: return "MPC8260";
default:
printk("Unknown CPU value of 0x%x. Please add it to <libcpu/powerpc/shared/cpu.h>\n", cpu );
}
return "UNKNOWN";
}
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_604r: */
case PPC_750:
case PPC_7400:
case PPC_604e:
case PPC_620:
case PPC_860:
case PPC_8260:
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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