irongatereg.h revision 1.2
1/* $OpenBSD: irongatereg.h,v 1.2 2001/04/17 14:53:33 art Exp $ */ 2/* $NetBSD: irongatereg.h,v 1.2 2000/06/26 02:42:10 thorpej Exp $ */ 3 4/*- 5 * Copyright (c) 2000 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40/* 41 * Register definitions for the AMD 751 (``Irongate'') core logic 42 * chipset. 43 */ 44 45/* 46 * Address map. 47 * 48 * This from the Tsunami address map: 49 * EV6 has a new superpage which can pass through 44 address bits. (Umm, a 50 * superduperpage?) But, the firmware doesn't turn it on, so we use the old 51 * one and let the HW sign extend va/pa<40> to get us the pa<43> that makes 52 * the needed I/O space access. This is just as well; it means we don't have 53 * to worry about which GENERIC code might get called on other CPU models. 54 * 55 * E.g., we want this: 0x0801##fc00##0000 56 * We use this: 0x0101##fc00##0000 57 * ...mix in the old SP: 0xffff##fc00##0000##0000 58 * ...after PA sign ext: 0xffff##ff01##fc00##0000 59 * (PA<42:41> ignored) 60 * 61 * PCI memory and RAM: 0000.0000.0000 62 * IACK 0001.f800.0000 63 * PCI I/O: 0001.fc00.0000 64 * AMD 751 (also in PCI config space): 0001.fe00.0000 65 */ 66 67/* 68 * This hack allows us to map the I/O address space without using 69 * the KSEG sign extension hack. 70 */ 71#define IRONGATE_PHYSADDR(x) \ 72 (((x) & ~0x0100##0000##0000) | 0x0800##0000##0000) 73 74#define IRONGATE_KSEG_BIAS 0x0100##0000##0000UL 75 76#define IRONGATE_MEM_BASE (IRONGATE_KSEG_BIAS | 0x0000##0000##0000UL) 77#define IRONGATE_IACK_BASE (IRONGATE_KSEG_BIAS | 0x0001##f800##0000UL) 78#define IRONGATE_IO_BASE (IRONGATE_KSEG_BIAS | 0x0001##fc00##0000UL) 79#define IRONGATE_SELF_BASE (IRONGATE_KSEG_BIAS | 0x0001##fe00##0000UL) 80 81/* 82 * PCI configuration register access using done by using 83 * ``configuration mode 1'' (in PC lingo), using the I/O 84 * space addresses described in the PCI Local Bus Specification 85 * Revision 2.2. 86 */ 87#define IRONGATE_CONFADDR 0x0cf8 88#define IRONGATE_CONFDATA 0x0cfc 89 90#define CONFADDR_ENABLE 0x80000000U 91 92/* 93 * The AMD 751 PCI-Host bridge is located at device 0, and the 94 * AGP controller (seen as a PCI-PCI bridge) is at device 1. 95 */ 96#define IRONGATE_PCIHOST_DEV 0 97#define IRONGATE_PCIAGP_DEV 1 98