1164426Ssam/* $NetBSD: ixp425_pci_asm.S,v 1.2 2005/12/11 12:16:51 christos Exp $ */ 2164426Ssam 3164426Ssam/* 4164426Ssam * Copyright (c) 2003 Wasabi Systems, Inc. 5164426Ssam * All rights reserved. 6164426Ssam * 7164426Ssam * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8164426Ssam * 9164426Ssam * Redistribution and use in source and binary forms, with or without 10164426Ssam * modification, are permitted provided that the following conditions 11164426Ssam * are met: 12164426Ssam * 1. Redistributions of source code must retain the above copyright 13164426Ssam * notice, this list of conditions and the following disclaimer. 14164426Ssam * 2. Redistributions in binary form must reproduce the above copyright 15164426Ssam * notice, this list of conditions and the following disclaimer in the 16164426Ssam * documentation and/or other materials provided with the distribution. 17164426Ssam * 3. All advertising materials mentioning features or use of this software 18164426Ssam * must display the following acknowledgement: 19164426Ssam * This product includes software developed for the NetBSD Project by 20164426Ssam * Wasabi Systems, Inc. 21164426Ssam * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22164426Ssam * or promote products derived from this software without specific prior 23164426Ssam * written permission. 24164426Ssam * 25164426Ssam * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26164426Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27164426Ssam * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28164426Ssam * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29164426Ssam * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30164426Ssam * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31164426Ssam * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32164426Ssam * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33164426Ssam * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34164426Ssam * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35164426Ssam * POSSIBILITY OF SUCH DAMAGE. 36164426Ssam * 37164426Ssam * $FreeBSD$ 38164426Ssam * 39164426Ssam */ 40164426Ssam 41164426Ssam#include <machine/asm.h> 42164426Ssam 43164426Ssam/* 44164426Ssam * Bus space functions for IXP425 PCI space access. We have to swizzle 45164426Ssam * the address for 1 and 2 byte accesses when in big-endian mode. 46164426Ssam */ 47164426Ssam 48164426Ssam/* 49164426Ssam * read single 50164426Ssam */ 51164426Ssam 52164426SsamENTRY(ixp425_pci_mem_bs_r_1) 53164426Ssam#ifdef __ARMEB__ 54164426Ssam add r1, r1, r2 55164426Ssam eor r1, r1, #0x3 56164426Ssam ldrb r0, [r1] 57164426Ssam#else 58164426Ssam ldrb r0, [r1, r2] 59164426Ssam#endif /* __ARMEB__ */ 60164426Ssam mov pc, lr 61275519SandrewEND(ixp425_pci_mem_bs_r_1) 62164426Ssam 63164426SsamENTRY(ixp425_pci_mem_bs_r_2) 64164426Ssam#ifdef __ARMEB__ 65164426Ssam add r1, r1, r2 66164426Ssam eor r1, r1, #0x2 67164426Ssam ldrh r0, [r1] 68164426Ssam#else 69164426Ssam ldrh r0, [r1, r2] 70164426Ssam#endif /* __ARMEB__ */ 71164426Ssam mov pc, lr 72275519SandrewEND(ixp425_pci_mem_bs_r_2) 73164426Ssam 74164426SsamENTRY(ixp425_pci_mem_bs_r_4) 75164426Ssam ldr r0, [r1, r2] 76164426Ssam mov pc, lr 77275519SandrewEND(ixp425_pci_mem_bs_r_4) 78164426Ssam 79164426Ssam/* 80164426Ssam * write single 81164426Ssam */ 82164426Ssam 83164426SsamENTRY(ixp425_pci_mem_bs_w_1) 84164426Ssam#ifdef __ARMEB__ 85164426Ssam add r1, r1, r2 86164426Ssam eor r1, r1, #0x3 87164426Ssam strb r3, [r1] 88164426Ssam#else 89164426Ssam strb r3, [r1, r2] 90164426Ssam#endif /* __ARMEB__ */ 91164426Ssam mov pc, lr 92275519SandrewEND(ixp425_pci_mem_bs_w_1) 93164426Ssam 94164426SsamENTRY(ixp425_pci_mem_bs_w_2) 95164426Ssam#ifdef __ARMEB__ 96164426Ssam add r1, r1, r2 97164426Ssam eor r1, r1, #0x2 98164426Ssam strh r3, [r1] 99164426Ssam#else 100164426Ssam strh r3, [r1, r2] 101164426Ssam#endif /* __ARMEB__ */ 102164426Ssam mov pc, lr 103275519SandrewEND(ixp425_pci_mem_bs_w_2) 104164426Ssam 105164426SsamENTRY(ixp425_pci_mem_bs_w_4) 106164426Ssam str r3, [r1, r2] 107164426Ssam mov pc, lr 108275519SandrewEND(ixp425_pci_mem_bs_w_4) 109