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/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * gio.h: Definitions for SGI GIO bus * * Copyright (C) 2002 Ladislav Michl */ #ifndef _SGI_GIO_H #define _SGI_GIO_H /* * GIO bus addresses * * The Indigo and Indy have two GIO bus connectors. Indigo2 (all models) have * three physical connectors, but only two slots, GFX and EXP0. * * There is 10MB of GIO address space for GIO64 slot devices * slot# slot type address range size * ----- --------- ----------------------- ----- * 0 GFX 0x1f000000 - 0x1f3fffff 4MB * 1 EXP0 0x1f400000 - 0x1f5fffff 2MB * 2 EXP1 0x1f600000 - 0x1f9fffff 4MB * * There are un-slotted devices, HPC, I/O and misc devices, which are grouped * into the HPC address space. * - MISC 0x1fb00000 - 0x1fbfffff 1MB * * Following space is reserved and unused * - RESERVED 0x18000000 - 0x1effffff 112MB * * GIO bus IDs * * Each GIO bus device identifies itself to the system by answering a * read with an "ID" value. IDs are either 8 or 32 bits long. IDs less * than 128 are 8 bits long, with the most significant 24 bits read from * the slot undefined. * * 32-bit IDs are divided into * bits 0:6 the product ID; ranges from 0x00 to 0x7F. * bit 7 0=GIO Product ID is 8 bits wide * 1=GIO Product ID is 32 bits wide. * bits 8:15 manufacturer version for the product. * bit 16 0=GIO32 and GIO32-bis, 1=GIO64. * bit 17 0=no ROM present * 1=ROM present on this board AND next three words * space define the ROM. * bits 18:31 up to manufacturer. * * IDs above 0x50/0xd0 are of 3rd party boards. * * 8-bit IDs * 0x01 XPI low cost FDDI * 0x02 GTR TokenRing * 0x04 Synchronous ISDN * 0x05 ATM board [*] * 0x06 Canon Interface * 0x07 16 bit SCSI Card [*] * 0x08 JPEG (Double Wide) * 0x09 JPEG (Single Wide) * 0x0a XPI mez. FDDI device 0 * 0x0b XPI mez. FDDI device 1 * 0x0c SMPTE 259M Video [*] * 0x0d Babblefish Compression [*] * 0x0e E-Plex 8-port Ethernet * 0x30 Lyon Lamb IVAS * 0xb8 GIO 100BaseTX Fast Ethernet (gfe) * * [*] Device provide 32-bit ID. * */ #define GIO_ID(x) (x & 0x7f) #define GIO_32BIT_ID 0x80 #define GIO_REV(x) ((x >> 8) & 0xff) #define GIO_64BIT_IFACE 0x10000 #define GIO_ROM_PRESENT 0x20000 #define GIO_VENDOR_CODE(x) ((x >> 18) & 0x3fff) #define GIO_SLOT_GFX_BASE 0x1f000000 #define GIO_SLOT_EXP0_BASE 0x1f400000 #define GIO_SLOT_EXP1_BASE 0x1f600000 #endif /* _SGI_GIO_H */