1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * machines.h:  Defines for taking apart the machine type value in the
4  *              idprom and determining the kind of machine we are on.
5  *
6  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
7  */
8 #ifndef _SPARC_MACHINES_H
9 #define _SPARC_MACHINES_H
10 
11 struct Sun_Machine_Models {
12 	char *name;
13 	unsigned char id_machtype;
14 };
15 
16 /* The machine type in the idprom area looks like this:
17  *
18  * ---------------
19  * | ARCH | MACH |
20  * ---------------
21  *  7    4 3    0
22  *
23  * The ARCH field determines the architecture line (sun4m, etc).
24  * The MACH field determines the machine make within that architecture.
25  */
26 
27 #define SM_ARCH_MASK  0xf0
28 #define  M_LEON       0x30
29 #define SM_SUN4M      0x70
30 #define SM_SUN4M_OBP  0x80
31 
32 #define SM_TYP_MASK   0x0f
33 
34 /* Leon machines */
35 #define M_LEON3_SOC   0x02    /* Leon3 SoC */
36 
37 /* Sun4m machines, these predate the OpenBoot.  These values only mean
38  * something if the value in the ARCH field is SM_SUN4M, if it is
39  * SM_SUN4M_OBP then you have the following situation:
40  * 1) You either have a sun4d, a sun4e, or a recently made sun4m.
41  * 2) You have to consult OpenBoot to determine which machine this is.
42  */
43 #define SM_4M_SS60    0x01    /* Sun4m SparcSystem 600                  */
44 #define SM_4M_SS50    0x02    /* Sun4m SparcStation 10                  */
45 #define SM_4M_SS40    0x03    /* Sun4m SparcStation 5                   */
46 
47 /* Sun4d machines -- N/A */
48 /* Sun4e machines -- N/A */
49 /* Sun4u machines -- N/A */
50 
51 #endif /* !(_SPARC_MACHINES_H) */
52