sa11x0.c revision 1.21.62.1
1 /* $NetBSD: sa11x0.c,v 1.21.62.1 2008/05/18 12:31:40 yamt 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 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 /*- 31 * Copyright (c) 1999 32 * Shin Takemura and PocketBSD Project. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the PocketBSD project 45 * and its contributors. 46 * 4. Neither the name of the project nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 */ 63 64 #include <sys/cdefs.h> 65 __KERNEL_RCSID(0, "$NetBSD: sa11x0.c,v 1.21.62.1 2008/05/18 12:31:40 yamt Exp $"); 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/device.h> 70 #include <sys/kernel.h> 71 #include <sys/reboot.h> 72 73 #include <uvm/uvm_extern.h> 74 75 #include <machine/cpu.h> 76 #include <machine/bus.h> 77 78 #include <arm/mainbus/mainbus.h> 79 #include <arm/sa11x0/sa11x0_reg.h> 80 #include <arm/sa11x0/sa11x0_var.h> 81 #include <arm/sa11x0/sa11x0_dmacreg.h> 82 #include <arm/sa11x0/sa11x0_ppcreg.h> 83 #include <arm/sa11x0/sa11x0_gpioreg.h> 84 85 #include "locators.h" 86 87 /* prototypes */ 88 static int sa11x0_match(struct device *, struct cfdata *, void *); 89 static void sa11x0_attach(struct device *, struct device *, void *); 90 static int sa11x0_search(struct device *, struct cfdata *, 91 const int *, void *); 92 static int sa11x0_print(void *, const char *); 93 94 /* attach structures */ 95 CFATTACH_DECL(saip, sizeof(struct sa11x0_softc), 96 sa11x0_match, sa11x0_attach, NULL, NULL); 97 98 extern struct bus_space sa11x0_bs_tag; 99 extern vaddr_t saipic_base; 100 101 /* 102 * int sa11x0_print(void *aux, const char *name) 103 * print configuration info for children 104 */ 105 106 static int 107 sa11x0_print(void *aux, const char *name) 108 { 109 struct sa11x0_attach_args *sa = (struct sa11x0_attach_args*)aux; 110 111 if (sa->sa_size) 112 aprint_normal(" addr 0x%lx", sa->sa_addr); 113 if (sa->sa_size > 1) 114 aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1); 115 if (sa->sa_intr > 1) 116 aprint_normal(" intr %d", sa->sa_intr); 117 if (sa->sa_gpio != -1) 118 aprint_normal(" gpio %d", sa->sa_gpio); 119 120 return UNCONF; 121 } 122 123 int 124 sa11x0_match(struct device *parent, struct cfdata *match, void *aux) 125 { 126 127 return 1; 128 } 129 130 void 131 sa11x0_attach(struct device *parent, struct device *self, void *aux) 132 { 133 struct sa11x0_softc *sc = (struct sa11x0_softc*)self; 134 135 sc->sc_iot = &sa11x0_bs_tag; 136 137 /* Map the SAIP */ 138 if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS, 139 0, &sc->sc_ioh)) 140 panic("%s: Cannot map registers", self->dv_xname); 141 saipic_base = sc->sc_ioh; 142 143 /* Map the GPIO registers */ 144 if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS, 145 0, &sc->sc_gpioh)) 146 panic("%s: unable to map GPIO registers", self->dv_xname); 147 bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff); 148 149 /* Map the PPC registers */ 150 if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS, 151 0, &sc->sc_ppch)) 152 panic("%s: unable to map PPC registers", self->dv_xname); 153 154 /* Map the DMA controller registers */ 155 if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS, 156 0, &sc->sc_dmach)) 157 panic("%s: unable to map DMAC registers", self->dv_xname); 158 159 /* Map the reset controller registers */ 160 if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE, 161 0, &sc->sc_reseth)) 162 panic("%s: unable to map reset registers", self->dv_xname); 163 164 printf("\n"); 165 166 /* 167 * Mask all interrupts. 168 * They are later unmasked at each device's attach routine. 169 */ 170 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0); 171 172 /* Route all bits to IRQ */ 173 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0); 174 175 /* Exit idle mode only when unmasked intr is received */ 176 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1); 177 178 /* disable all DMAC channels */ 179 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1); 180 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1); 181 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1); 182 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1); 183 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1); 184 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1); 185 186 /* 187 * XXX this is probably a bad place, but intr bit shouldn't be 188 * XXX enabled before intr mask is set. 189 * XXX Having sane imask[] suffice?? 190 */ 191 SetCPSR(I32_bit, 0); 192 193 /* 194 * Attach each devices 195 */ 196 config_search_ia(sa11x0_search, self, "saip", NULL); 197 } 198 199 int 200 sa11x0_search(struct device *parent, struct cfdata *cf, const int *ldesc, 201 void *aux) 202 { 203 struct sa11x0_softc *sc = (struct sa11x0_softc *)parent; 204 struct sa11x0_attach_args sa; 205 206 sa.sa_sc = sc; 207 sa.sa_iot = sc->sc_iot; 208 sa.sa_addr = cf->cf_loc[SAIPCF_ADDR]; 209 sa.sa_size = cf->cf_loc[SAIPCF_SIZE]; 210 sa.sa_intr = cf->cf_loc[SAIPCF_INTR]; 211 sa.sa_gpio = cf->cf_loc[SAIPCF_GPIO]; 212 213 if (config_match(parent, cf, &sa) > 0) 214 config_attach(parent, cf, &sa, sa11x0_print); 215 216 return 0; 217 } 218
Indexes created Sat Oct 25 16:10:12 GMT 2025