tspld.c revision 1.2
1 /* $NetBSD: tspld.c,v 1.2 2004/12/26 22:02:11 joff Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 Jesse Off 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 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: tspld.c,v 1.2 2004/12/26 22:02:11 joff Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 #include <sys/wdog.h> 44 45 #include <machine/bus.h> 46 #include <machine/cpu.h> 47 #include <machine/autoconf.h> 48 #include "isa.h" 49 #if NISA > 0 50 #include <dev/isa/isavar.h> 51 #include <machine/isa_machdep.h> 52 #endif 53 54 #include <evbarm/tsarm/tsarmreg.h> 55 #include <evbarm/tsarm/tspldvar.h> 56 #include <arm/ep93xx/ep93xxvar.h> 57 #include <arm/arm32/machdep.h> 58 #include <arm/cpufunc.h> 59 #include <dev/sysmon/sysmonvar.h> 60 61 int tspldmatch __P((struct device *, struct cfdata *, void *)); 62 void tspldattach __P((struct device *, struct device *, void *)); 63 static int tspld_wdog_setmode __P((struct sysmon_wdog *)); 64 static int tspld_wdog_tickle __P((struct sysmon_wdog *)); 65 66 struct tspld_softc { 67 struct device sc_dev; 68 bus_space_tag_t sc_iot; 69 bus_space_handle_t sc_wdogfeed_ioh; 70 bus_space_handle_t sc_wdogctrl_ioh; 71 struct sysmon_wdog sc_wdog; 72 }; 73 74 75 CFATTACH_DECL(tspld, sizeof(struct tspld_softc), 76 tspldmatch, tspldattach, NULL, NULL); 77 78 void tspld_callback __P((struct device *)); 79 80 int 81 tspldmatch(parent, match, aux) 82 struct device *parent; 83 struct cfdata *match; 84 void *aux; 85 { 86 87 return 1; 88 } 89 90 void 91 tspldattach(parent, self, aux) 92 struct device *parent, *self; 93 void *aux; 94 { 95 int i, rev, features, jp, model; 96 struct tspld_softc *sc = (struct tspld_softc *)self; 97 struct tspld_attach_args ta; 98 bus_space_handle_t ioh; 99 100 sc->sc_iot = &ep93xx_bs_tag; 101 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_MODEL, 2, 0, 102 &ioh); 103 model = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7; 104 bus_space_unmap(sc->sc_iot, ioh, 2); 105 106 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_PLDREV, 2, 0, 107 &ioh); 108 rev = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7; 109 rev = 'A' + rev - 1; 110 bus_space_unmap(sc->sc_iot, ioh, 2); 111 112 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_FEATURES, 2, 0, 113 &ioh); 114 features = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x7; 115 bus_space_unmap(sc->sc_iot, ioh, 2); 116 117 bus_space_map(sc->sc_iot, TS7XXX_IO8_HWBASE + TS7XXX_STATUS1, 1, 0, 118 &ioh); 119 i = bus_space_read_1(sc->sc_iot, ioh, 0) & 0x1f; 120 jp = (~((i & 0x18) >> 1) & 0xc) | (i & 0x3); 121 bus_space_unmap(sc->sc_iot, ioh, 1); 122 123 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_STATUS2, 2, 0, 124 &ioh); 125 i = bus_space_read_2(sc->sc_iot, ioh, 0) & 0x1; 126 jp |= (i << 4); 127 bus_space_unmap(sc->sc_iot, ioh, 1); 128 129 printf(": Technologic Systems TS-7%s rev %c, features 0x%x", 130 (model ? "250" : "200"), rev, features); 131 if (features == 0x1) 132 printf("<MAX197-ADC>"); 133 else if (features == 0x2) 134 printf("<RS485>"); 135 else if (features == 0x3) 136 printf("<MAX197-ADC,RS485>"); 137 printf("\n"); 138 printf("%s: jumpers 0x%x", sc->sc_dev.dv_xname, jp); 139 if (jp) { 140 printf("<"); 141 for(i = 0; i < 5; i++) { 142 if (jp & (1 << i)) { 143 printf("JP%d", i + 2); 144 jp &= ~(1 << i); 145 if (jp) printf(","); 146 } 147 } 148 printf(">"); 149 } 150 printf("\n"); 151 152 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_WDOGCTRL, 2, 0, 153 &sc->sc_wdogctrl_ioh); 154 bus_space_map(sc->sc_iot, TS7XXX_IO16_HWBASE + TS7XXX_WDOGFEED, 2, 0, 155 &sc->sc_wdogfeed_ioh); 156 157 sc->sc_wdog.smw_name = sc->sc_dev.dv_xname; 158 sc->sc_wdog.smw_cookie = sc; 159 sc->sc_wdog.smw_setmode = tspld_wdog_setmode; 160 sc->sc_wdog.smw_tickle = tspld_wdog_tickle; 161 sc->sc_wdog.smw_period = 8; 162 sysmon_wdog_register(&sc->sc_wdog); 163 tspld_wdog_setmode(&sc->sc_wdog); 164 165 ta.ta_iot = sc->sc_iot; 166 config_found_ia(self, "tspldbus", &ta, NULL); 167 168 /* Set the on board peripherals bus callback */ 169 config_defer(self, tspld_callback); 170 } 171 172 void 173 tspld_callback(self) 174 struct device *self; 175 { 176 #if NISA > 0 177 struct isabus_attach_args iba; 178 179 /* 180 * Attach the ISA bus behind this bridge. 181 */ 182 memset(&iba, 0, sizeof(iba)); 183 iba.iba_iot = &isa_io_bs_tag; 184 iba.iba_memt = &isa_mem_bs_tag; 185 config_found_ia(self, "isabus", &iba, isabusprint); 186 #endif 187 } 188 189 static int 190 tspld_wdog_tickle(smw) 191 struct sysmon_wdog *smw; 192 { 193 struct tspld_softc *sc = (struct tspld_softc *)smw->smw_cookie; 194 195 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5); 196 return 0; 197 } 198 199 static int 200 tspld_wdog_setmode(smw) 201 struct sysmon_wdog *smw; 202 { 203 int i, ret = 0; 204 struct tspld_softc *sc = (struct tspld_softc *)smw->smw_cookie; 205 206 i = disable_interrupts(I32_bit|F32_bit); 207 if ((smw->smw_mode & WDOG_MODE_MASK) == WDOG_MODE_DISARMED) { 208 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5); 209 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 0); 210 } else { 211 bus_space_write_2(sc->sc_iot, sc->sc_wdogfeed_ioh, 0, 0x5); 212 switch (smw->smw_period) { 213 case 1: 214 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 215 0x3); 216 break; 217 case 2: 218 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 219 0x5); 220 break; 221 case 4: 222 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 223 0x6); 224 break; 225 case 8: 226 bus_space_write_2(sc->sc_iot, sc->sc_wdogctrl_ioh, 0, 227 0x7); 228 break; 229 default: 230 ret = EINVAL; 231 } 232 } 233 restore_interrupts(i); 234 return ret; 235 } 236
Indexes created Fri Sep 26 08:10:20 GMT 2025