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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 */
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