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machines.h
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1 /*
2  * machines.h: Defines for taking apart the machine type value in the
3  * idprom and determining the kind of machine we are on.
4  *
5  * Copyright (C) 1995 David S. Miller ([email protected])
6  */
7 #ifndef _SPARC_MACHINES_H
8 #define _SPARC_MACHINES_H
9 
10 struct Sun_Machine_Models {
11  char *name;
12  unsigned char id_machtype;
13 };
14 
15 /* The machine type in the idprom area looks like this:
16  *
17  * ---------------
18  * | ARCH | MACH |
19  * ---------------
20  * 7 4 3 0
21  *
22  * The ARCH field determines the architecture line (sun4m, etc).
23  * The MACH field determines the machine make within that architecture.
24  */
25 
26 #define SM_ARCH_MASK 0xf0
27 #define M_LEON 0x30
28 #define SM_SUN4M 0x70
29 #define SM_SUN4M_OBP 0x80
30 
31 #define SM_TYP_MASK 0x0f
32 
33 /* Leon machines */
34 #define M_LEON3_SOC 0x02 /* Leon3 SoC */
35 
36 /* Sun4m machines, these predate the OpenBoot. These values only mean
37  * something if the value in the ARCH field is SM_SUN4M, if it is
38  * SM_SUN4M_OBP then you have the following situation:
39  * 1) You either have a sun4d, a sun4e, or a recently made sun4m.
40  * 2) You have to consult OpenBoot to determine which machine this is.
41  */
42 #define SM_4M_SS60 0x01 /* Sun4m SparcSystem 600 */
43 #define SM_4M_SS50 0x02 /* Sun4m SparcStation 10 */
44 #define SM_4M_SS40 0x03 /* Sun4m SparcStation 5 */
45 
46 /* Sun4d machines -- N/A */
47 /* Sun4e machines -- N/A */
48 /* Sun4u machines -- N/A */
49 
50 #endif /* !(_SPARC_MACHINES_H) */