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 */ 87