| /* -*- mode: c; c-basic-offset: 8 -*- */ |
| |
| /* Platform specific MCA defines */ |
| #ifndef _ASM_MCA_H |
| #define _ASM_MCA_H |
| |
| /* Maximal number of MCA slots - actually, some machines have less, but |
| * they all have sufficient number of POS registers to cover 8. |
| */ |
| #define MCA_MAX_SLOT_NR 8 |
| |
| /* Most machines have only one MCA bus. The only multiple bus machines |
| * I know have at most two */ |
| #define MAX_MCA_BUSSES 2 |
| |
| #define MCA_PRIMARY_BUS 0 |
| #define MCA_SECONDARY_BUS 1 |
| |
| /* Dummy slot numbers on primary MCA for integrated functions */ |
| #define MCA_INTEGSCSI (MCA_MAX_SLOT_NR) |
| #define MCA_INTEGVIDEO (MCA_MAX_SLOT_NR+1) |
| #define MCA_MOTHERBOARD (MCA_MAX_SLOT_NR+2) |
| |
| /* Dummy POS values for integrated functions */ |
| #define MCA_DUMMY_POS_START 0x10000 |
| #define MCA_INTEGSCSI_POS (MCA_DUMMY_POS_START+1) |
| #define MCA_INTEGVIDEO_POS (MCA_DUMMY_POS_START+2) |
| #define MCA_MOTHERBOARD_POS (MCA_DUMMY_POS_START+3) |
| |
| /* MCA registers */ |
| |
| #define MCA_MOTHERBOARD_SETUP_REG 0x94 |
| #define MCA_ADAPTER_SETUP_REG 0x96 |
| #define MCA_POS_REG(n) (0x100+(n)) |
| |
| #define MCA_ENABLED 0x01 /* POS 2, set if adapter enabled */ |
| |
| /* Max number of adapters, including both slots and various integrated |
| * things. |
| */ |
| #define MCA_NUMADAPTERS (MCA_MAX_SLOT_NR+3) |
| |
| #endif |
