blob: 0bc058acfefb5e12da894fe23c1c585a8e8846b7 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* 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>
/*
* 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_604 :
case PPC_603e :
case PPC_603ev:
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. Please add it to <libcpu/powerpc/shared/cpu.h> \n");
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;
}
|
