1 /* $NetBSD: gioreg.h,v 1.4 2006/08/31 00:01:10 rumble Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Ilpo Ruotsalainen 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>> 30 */ 31 32 #ifndef _ARCH_SGIMIPS_GIO_GIOREG_H_ 33 #define _ARCH_SGIMIPS_GIO_GIOREG_H_ 34 35 /* 36 * The GIO Product Identification Word is the first word (1 or 4 bytes) 37 * in each GIO device's address space. It is the same format for GIO32, 38 * GIO32-bis, and GIO64 devices. The macros below extract the following 39 * fields: 40 * 41 * Bits: 42 * 0-6 Product ID Code 43 * 7 Product Identification Word size (0: 8 bits, 1: 32 bits) 44 * 8-15 Product Revision 45 * 16 GIO Interface Size (0: 32, 1: 64; NB: GIO64 devices may be 32) 46 * 17 Rom Present (1: present) 47 * 18-31 Manufacturer-specific Code 48 * 49 * The upper three bytes containing the Product Revision, GIO Interface 50 * Size, Rom Presence indicator, and Manufacturer-specific Code are only 51 * valid if bit 7 is set in the Product ID Word. If it is not set, all 52 * values default to 0. 53 * 54 * If the Rom Present bit is set, the three words after the Product ID are 55 * reserved for three ROM registers: 56 * Board Serial Number Register (base_address + 0x4) 57 * ROM Index Register (base_address + 0x8) 58 * ROM Read Register (base_address + 0xc) 59 * 60 * The ROM Index Register is initialised by the CPU to 0 and incremented by 61 * 4 on each read from the ROM Read Register. The Board Serial Number 62 * Register contains a manufacturer-specific serial number. 63 */ 64 65 #define GIO_PRODUCT_32BIT_ID(x) ((x) & 0x80) 66 #define GIO_PRODUCT_PRODUCTID(x) ((x) & 0x7f) 67 #define GIO_PRODUCT_REVISION(x) (((x) >> 8) & 0xff) 68 #define GIO_PRODUCT_IS_64BIT(x) (!!((x) & 0x8000)) 69 #define GIO_PRODUCT_HAS_ROM(x) (!!((x) & 0x10000)) 70 #define GIO_PRODUCT_MANUCODE(x) ((x) >> 18) 71 72 #endif 73