1 /* $NetBSD: wdc_ts.c,v 1.5 2008/04/28 20:23:17 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Onno van der Linden. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: wdc_ts.c,v 1.5 2008/04/28 20:23:17 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 40 #include <machine/bus.h> 41 #include <machine/intr.h> 42 43 #include <arm/ep93xx/ep93xxvar.h> 44 45 #include <dev/ic/wdcreg.h> 46 #include <dev/ata/atavar.h> 47 #include <dev/ic/wdcvar.h> 48 #include <evbarm/tsarm/tspldvar.h> 49 50 struct wdc_ts_softc { 51 struct wdc_softc sc_wdcdev; 52 struct ata_channel *wdc_chanlist[1]; 53 struct ata_channel ata_channel; 54 struct ata_queue wdc_chqueue; 55 struct wdc_regs wdc_regs; 56 void *sc_ih; 57 }; 58 59 static int wdc_ts_probe(device_t, cfdata_t, void *); 60 static void wdc_ts_attach(device_t, device_t, void *); 61 62 CFATTACH_DECL_NEW(wdc_ts, sizeof(struct wdc_ts_softc), 63 wdc_ts_probe, wdc_ts_attach, NULL, NULL); 64 65 static int 66 wdc_ts_probe(device_t parent, cfdata_t match, void *aux) 67 { 68 return 1; 69 } 70 71 static void 72 wdc_ts_attach(device_t parent, device_t self, void *aux) 73 { 74 struct wdc_ts_softc *sc = device_private(self); 75 struct wdc_regs *wdr; 76 struct tspld_attach_args *ta = aux; 77 int i; 78 79 sc->sc_wdcdev.sc_atac.atac_dev = self; 80 sc->sc_wdcdev.regs = wdr = &sc->wdc_regs; 81 wdr->cmd_iot = ta->ta_iot; 82 wdr->ctl_iot = ta->ta_iot; 83 if (bus_space_map(wdr->cmd_iot, 0x11000000, 8, 0, &wdr->cmd_baseioh) || 84 bus_space_map(wdr->ctl_iot, 0x10400006, 1, 0, &wdr->ctl_ioh)) { 85 aprint_error(": couldn't map registers\n"); 86 return; 87 } 88 89 for (i = 0; i < 8; i++) { 90 if (bus_space_subregion(wdr->cmd_iot, 91 wdr->cmd_baseioh, i, 1, &wdr->cmd_iohs[i]) != 0) { 92 aprint_error(": couldn't subregion registers\n"); 93 return; 94 } 95 } 96 97 98 if (bus_space_map(wdr->cmd_iot, 0x21000000, 2, 0, &wdr->cmd_iohs[0])) { 99 aprint_error(": couldn't map registers\n"); 100 return; 101 } 102 103 sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA; 104 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 105 106 sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 107 sc->wdc_chanlist[0] = &sc->ata_channel; 108 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist; 109 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 110 sc->ata_channel.ch_channel = 0; 111 sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac; 112 sc->ata_channel.ch_queue = &sc->wdc_chqueue; 113 sc->ata_channel.ch_ndrive = 2; 114 wdc_init_shadow_regs(&sc->ata_channel); 115 116 aprint_normal("\n"); 117 118 sc->sc_ih = ep93xx_intr_establish(32, IPL_BIO, wdcintr, &sc->ata_channel); 119 120 wdcattach(&sc->ata_channel); 121 } 122