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