1 /* $NetBSD: pciide.c,v 1.7 2007/10/17 19:54:09 garbled Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include <sys/types.h> 37 #include <lib/libsa/stand.h> 38 #include <mips/cpuregs.h> 39 40 #include "boot.h" 41 #include "wdvar.h" 42 43 #define COBALT_IO_SPACE_BASE 0x10000000 /* XXX VT82C586 ISA I/O space */ 44 45 int 46 pciide_init(struct wdc_channel *chp, u_int *unit) 47 { 48 uint32_t cmdreg, ctlreg; 49 int i, compatchan = 0; 50 51 /* 52 * two channels per chip, two drives per channel 53 */ 54 compatchan = *unit / PCIIDE_CHANNEL_NDEV; 55 if (compatchan >= PCIIDE_NUM_CHANNELS) 56 return (ENXIO); 57 *unit %= PCIIDE_CHANNEL_NDEV; 58 59 DPRINTF(("[pciide] unit: %d, channel: %d\n", *unit, compatchan)); 60 61 /* 62 * XXX map? 63 */ 64 cmdreg = MIPS_PHYS_TO_KSEG1(COBALT_IO_SPACE_BASE + 65 PCIIDE_COMPAT_CMD_BASE(compatchan)); 66 ctlreg = MIPS_PHYS_TO_KSEG1(COBALT_IO_SPACE_BASE + 67 PCIIDE_COMPAT_CTL_BASE(compatchan)); 68 69 /* set up cmd regsiters */ 70 chp->c_cmdbase = (uint8_t *)cmdreg; 71 chp->c_data = (uint16_t *)(cmdreg + wd_data); 72 for (i = 0; i < WDC_NPORTS; i++) 73 chp->c_cmdreg[i] = chp->c_cmdbase + i; 74 /* set up shadow registers */ 75 chp->c_cmdreg[wd_status] = chp->c_cmdreg[wd_command]; 76 chp->c_cmdreg[wd_features] = chp->c_cmdreg[wd_precomp]; 77 /* set up ctl registers */ 78 chp->c_ctlbase = (uint8_t *)ctlreg; 79 80 return 0; 81 } 82