| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * gio.h: Definitions for SGI GIO bus |
| 7 | * |
| 8 | * Copyright (C) 2002 Ladislav Michl |
| 9 | */ |
| 10 | |
| 11 | #ifndef _SGI_GIO_H |
| 12 | #define _SGI_GIO_H |
| 13 | |
| 14 | /* |
| 15 | * GIO bus addresses |
| 16 | * |
| 17 | * The Indigo and Indy have two GIO bus connectors. Indigo2 (all models) have |
| 18 | * three physical connectors, but only two slots, GFX and EXP0. |
| 19 | * |
| 20 | * There is 10MB of GIO address space for GIO64 slot devices |
| 21 | * slot# slot type address range size |
| 22 | * ----- --------- ----------------------- ----- |
| 23 | * 0 GFX 0x1f000000 - 0x1f3fffff 4MB |
| 24 | * 1 EXP0 0x1f400000 - 0x1f5fffff 2MB |
| 25 | * 2 EXP1 0x1f600000 - 0x1f9fffff 4MB |
| 26 | * |
| 27 | * There are un-slotted devices, HPC, I/O and misc devices, which are grouped |
| 28 | * into the HPC address space. |
| 29 | * - MISC 0x1fb00000 - 0x1fbfffff 1MB |
| 30 | * |
| 31 | * Following space is reserved and unused |
| 32 | * - RESERVED 0x18000000 - 0x1effffff 112MB |
| 33 | * |
| 34 | * GIO bus IDs |
| 35 | * |
| 36 | * Each GIO bus device identifies itself to the system by answering a |
| 37 | * read with an "ID" value. IDs are either 8 or 32 bits long. IDs less |
| 38 | * than 128 are 8 bits long, with the most significant 24 bits read from |
| 39 | * the slot undefined. |
| 40 | * |
| 41 | * 32-bit IDs are divided into |
| 42 | * bits 0:6 the product ID; ranges from 0x00 to 0x7F. |
| 43 | * bit 7 0=GIO Product ID is 8 bits wide |
| 44 | * 1=GIO Product ID is 32 bits wide. |
| 45 | * bits 8:15 manufacturer version for the product. |
| 46 | * bit 16 0=GIO32 and GIO32-bis, 1=GIO64. |
| 47 | * bit 17 0=no ROM present |
| 48 | * 1=ROM present on this board AND next three words |
| 49 | * space define the ROM. |
| 50 | * bits 18:31 up to manufacturer. |
| 51 | * |
| 52 | * IDs above 0x50/0xd0 are of 3rd party boards. |
| 53 | * |
| 54 | * 8-bit IDs |
| 55 | * 0x01 XPI low cost FDDI |
| 56 | * 0x02 GTR TokenRing |
| 57 | * 0x04 Synchronous ISDN |
| 58 | * 0x05 ATM board [*] |
| 59 | * 0x06 Canon Interface |
| 60 | * 0x07 16 bit SCSI Card [*] |
| 61 | * 0x08 JPEG (Double Wide) |
| 62 | * 0x09 JPEG (Single Wide) |
| 63 | * 0x0a XPI mez. FDDI device 0 |
| 64 | * 0x0b XPI mez. FDDI device 1 |
| 65 | * 0x0c SMPTE 259M Video [*] |
| 66 | * 0x0d Babblefish Compression [*] |
| 67 | * 0x0e E-Plex 8-port Ethernet |
| 68 | * 0x30 Lyon Lamb IVAS |
| 69 | * 0xb8 GIO 100BaseTX Fast Ethernet (gfe) |
| 70 | * |
| 71 | * [*] Device provide 32-bit ID. |
| 72 | * |
| 73 | */ |
| 74 | |
| 75 | #define GIO_ID(x) (x & 0x7f) |
| 76 | #define GIO_32BIT_ID 0x80 |
| 77 | #define GIO_REV(x) ((x >> 8) & 0xff) |
| 78 | #define GIO_64BIT_IFACE 0x10000 |
| 79 | #define GIO_ROM_PRESENT 0x20000 |
| 80 | #define GIO_VENDOR_CODE(x) ((x >> 18) & 0x3fff) |
| 81 | |
| 82 | #define GIO_SLOT_GFX_BASE 0x1f000000 |
| 83 | #define GIO_SLOT_EXP0_BASE 0x1f400000 |
| 84 | #define GIO_SLOT_EXP1_BASE 0x1f600000 |
| 85 | |
| 86 | #endif /* _SGI_GIO_H */ |