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