sa11x0.c revision 1.21
1 /* $NetBSD: sa11x0.c,v 1.21 2006/06/27 13:58:08 peter Exp $ */ 2 3 /*- 4 * Copyright (c) 2001, The NetBSD Foundation, Inc. All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by IWAMOTO Toshihiro and Ichiro FUKUHARA. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 /*- 38 * Copyright (c) 1999 39 * Shin Takemura and PocketBSD Project. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the PocketBSD project 52 * and its contributors. 53 * 4. Neither the name of the project nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 * 69 */ 70 71 #include <sys/cdefs.h> 72 __KERNEL_RCSID(0, "$NetBSD: sa11x0.c,v 1.21 2006/06/27 13:58:08 peter Exp $"); 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/device.h> 77 #include <sys/kernel.h> 78 #include <sys/reboot.h> 79 80 #include <uvm/uvm_extern.h> 81 82 #include <machine/cpu.h> 83 #include <machine/bus.h> 84 85 #include <arm/mainbus/mainbus.h> 86 #include <arm/sa11x0/sa11x0_reg.h> 87 #include <arm/sa11x0/sa11x0_var.h> 88 #include <arm/sa11x0/sa11x0_dmacreg.h> 89 #include <arm/sa11x0/sa11x0_ppcreg.h> 90 #include <arm/sa11x0/sa11x0_gpioreg.h> 91 92 #include "locators.h" 93 94 /* prototypes */ 95 static int sa11x0_match(struct device *, struct cfdata *, void *); 96 static void sa11x0_attach(struct device *, struct device *, void *); 97 static int sa11x0_search(struct device *, struct cfdata *, 98 const int *, void *); 99 static int sa11x0_print(void *, const char *); 100 101 /* attach structures */ 102 CFATTACH_DECL(saip, sizeof(struct sa11x0_softc), 103 sa11x0_match, sa11x0_attach, NULL, NULL); 104 105 extern struct bus_space sa11x0_bs_tag; 106 extern vaddr_t saipic_base; 107 108 /* 109 * int sa11x0_print(void *aux, const char *name) 110 * print configuration info for children 111 */ 112 113 static int 114 sa11x0_print(void *aux, const char *name) 115 { 116 struct sa11x0_attach_args *sa = (struct sa11x0_attach_args*)aux; 117 118 if (sa->sa_size) 119 aprint_normal(" addr 0x%lx", sa->sa_addr); 120 if (sa->sa_size > 1) 121 aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1); 122 if (sa->sa_intr > 1) 123 aprint_normal(" intr %d", sa->sa_intr); 124 if (sa->sa_gpio != -1) 125 aprint_normal(" gpio %d", sa->sa_gpio); 126 127 return UNCONF; 128 } 129 130 int 131 sa11x0_match(struct device *parent, struct cfdata *match, void *aux) 132 { 133 134 return 1; 135 } 136 137 void 138 sa11x0_attach(struct device *parent, struct device *self, void *aux) 139 { 140 struct sa11x0_softc *sc = (struct sa11x0_softc*)self; 141 142 sc->sc_iot = &sa11x0_bs_tag; 143 144 /* Map the SAIP */ 145 if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS, 146 0, &sc->sc_ioh)) 147 panic("%s: Cannot map registers", self->dv_xname); 148 saipic_base = sc->sc_ioh; 149 150 /* Map the GPIO registers */ 151 if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS, 152 0, &sc->sc_gpioh)) 153 panic("%s: unable to map GPIO registers", self->dv_xname); 154 bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff); 155 156 /* Map the PPC registers */ 157 if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS, 158 0, &sc->sc_ppch)) 159 panic("%s: unable to map PPC registers", self->dv_xname); 160 161 /* Map the DMA controller registers */ 162 if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS, 163 0, &sc->sc_dmach)) 164 panic("%s: unable to map DMAC registers", self->dv_xname); 165 166 /* Map the reset controller registers */ 167 if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE, 168 0, &sc->sc_reseth)) 169 panic("%s: unable to map reset registers", self->dv_xname); 170 171 printf("\n"); 172 173 /* 174 * Mask all interrupts. 175 * They are later unmasked at each device's attach routine. 176 */ 177 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0); 178 179 /* Route all bits to IRQ */ 180 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0); 181 182 /* Exit idle mode only when unmasked intr is received */ 183 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1); 184 185 /* disable all DMAC channels */ 186 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1); 187 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1); 188 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1); 189 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1); 190 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1); 191 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1); 192 193 /* 194 * XXX this is probably a bad place, but intr bit shouldn't be 195 * XXX enabled before intr mask is set. 196 * XXX Having sane imask[] suffice?? 197 */ 198 SetCPSR(I32_bit, 0); 199 200 /* 201 * Attach each devices 202 */ 203 config_search_ia(sa11x0_search, self, "saip", NULL); 204 } 205 206 int 207 sa11x0_search(struct device *parent, struct cfdata *cf, const int *ldesc, 208 void *aux) 209 { 210 struct sa11x0_softc *sc = (struct sa11x0_softc *)parent; 211 struct sa11x0_attach_args sa; 212 213 sa.sa_sc = sc; 214 sa.sa_iot = sc->sc_iot; 215 sa.sa_addr = cf->cf_loc[SAIPCF_ADDR]; 216 sa.sa_size = cf->cf_loc[SAIPCF_SIZE]; 217 sa.sa_intr = cf->cf_loc[SAIPCF_INTR]; 218 sa.sa_gpio = cf->cf_loc[SAIPCF_GPIO]; 219 220 if (config_match(parent, cf, &sa) > 0) 221 config_attach(parent, cf, &sa, sa11x0_print); 222 223 return 0; 224 } 225
Indexes created Tue Sep 30 20:09:53 GMT 2025