| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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) */ |