sa11x0.c revision 1.16
1 /* $NetBSD: sa11x0.c,v 1.16 2005/08/26 13:19:35 drochner 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 /*- 26 * Copyright (c) 1999 27 * Shin Takemura and PocketBSD Project. All rights reserved. 28 * 29 * Redistribution and use in source and binary forms, with or without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 1. Redistributions of source code must retain the above copyright 33 * notice, this list of conditions and the following disclaimer. 34 * 2. Redistributions in binary form must reproduce the above copyright 35 * notice, this list of conditions and the following disclaimer in the 36 * documentation and/or other materials provided with the distribution. 37 * 3. All advertising materials mentioning features or use of this software 38 * must display the following acknowledgement: 39 * This product includes software developed by the PocketBSD project 40 * and its contributors. 41 * 4. Neither the name of the project nor the names of its contributors 42 * may be used to endorse or promote products derived from this software 43 * without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 * 57 */ 58 59 #include <sys/cdefs.h> 60 __KERNEL_RCSID(0, "$NetBSD: sa11x0.c,v 1.16 2005/08/26 13:19:35 drochner Exp $"); 61 62 #include <sys/param.h> 63 #include <sys/systm.h> 64 #include <sys/device.h> 65 #include <sys/kernel.h> 66 #include <sys/reboot.h> 67 68 #include <uvm/uvm_extern.h> 69 70 #include <machine/cpu.h> 71 #include <machine/bus.h> 72 73 #include <arm/mainbus/mainbus.h> 74 #include <arm/sa11x0/sa11x0_reg.h> 75 #include <arm/sa11x0/sa11x0_var.h> 76 #include <arm/sa11x0/sa11x0_dmacreg.h> 77 #include <arm/sa11x0/sa11x0_ppcreg.h> 78 #include <arm/sa11x0/sa11x0_gpioreg.h> 79 80 #ifdef hpcarm 81 #include <hpc/include/config_hook.h> 82 #include <hpc/include/platid.h> 83 #include <hpc/include/platid_mask.h> 84 #endif 85 86 #include "locators.h" 87 88 /* prototypes */ 89 static int sa11x0_match(struct device *, struct cfdata *, void *); 90 static void sa11x0_attach(struct device *, struct device *, void *); 91 static int sa11x0_search(struct device *, struct cfdata *, 92 const int *, void *); 93 static int sa11x0_print(void *, const char *); 94 95 /* attach structures */ 96 CFATTACH_DECL(saip, sizeof(struct sa11x0_softc), 97 sa11x0_match, sa11x0_attach, NULL, NULL); 98 99 extern struct bus_space sa11x0_bs_tag; 100 extern vaddr_t saipic_base; 101 102 /* 103 * int sa11x0_print(void *aux, const char *name) 104 * print configuration info for children 105 */ 106 107 static int 108 sa11x0_print(aux, name) 109 void *aux; 110 const char *name; 111 { 112 struct sa11x0_attach_args *sa = (struct sa11x0_attach_args*)aux; 113 114 if (sa->sa_size) 115 aprint_normal(" addr 0x%lx", sa->sa_addr); 116 if (sa->sa_size > 1) 117 aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1); 118 if (sa->sa_intr > 1) 119 aprint_normal(" intr %d", sa->sa_intr); 120 if (sa->sa_gpio != -1) 121 aprint_normal(" gpio %d", sa->sa_gpio); 122 123 return (UNCONF); 124 } 125 126 int 127 sa11x0_match(parent, match, aux) 128 struct device *parent; 129 struct cfdata *match; 130 void *aux; 131 { 132 return 1; 133 } 134 135 void 136 sa11x0_attach(parent, self, aux) 137 struct device *parent; 138 struct device *self; 139 void *aux; 140 { 141 struct sa11x0_softc *sc = (struct sa11x0_softc*)self; 142 143 sc->sc_iot = &sa11x0_bs_tag; 144 145 /* Map the SAIP */ 146 if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS, 147 0, &sc->sc_ioh)) 148 panic("%s: Cannot map registers", self->dv_xname); 149 saipic_base = sc->sc_ioh; 150 151 /* Map the GPIO registers */ 152 if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS, 153 0, &sc->sc_gpioh)) 154 panic("%s: unable to map GPIO registers", self->dv_xname); 155 bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff); 156 157 /* Map the PPC registers */ 158 if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS, 159 0, &sc->sc_ppch)) 160 panic("%s: unable to map PPC registers", self->dv_xname); 161 162 /* Map the DMA controller registers */ 163 if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS, 164 0, &sc->sc_dmach)) 165 panic("%s: unable to map DMAC registers", self->dv_xname); 166 167 /* Map the reset controller registers */ 168 if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE, 169 0, &sc->sc_reseth)) 170 panic("%s: unable to map reset registers", self->dv_xname); 171 172 printf("\n"); 173 174 /* 175 * Mask all interrupts. 176 * They are later unmasked at each device's attach routine. 177 */ 178 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0); 179 180 /* Route all bits to IRQ */ 181 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0); 182 183 /* Exit idle mode only when unmasked intr is received */ 184 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1); 185 186 /* disable all DMAC channels */ 187 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1); 188 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1); 189 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1); 190 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1); 191 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1); 192 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1); 193 194 /* 195 * XXX this is probably a bad place, but intr bit shouldn't be 196 * XXX enabled before intr mask is set. 197 * XXX Having sane imask[] suffice?? 198 */ 199 SetCPSR(I32_bit, 0); 200 201 /* 202 * Attach each devices 203 */ 204 config_search_ia(sa11x0_search, self, "saip", NULL); 205 } 206 207 int 208 sa11x0_search(parent, cf, ldesc, aux) 209 struct device *parent; 210 struct cfdata *cf; 211 const int *ldesc; 212 void *aux; 213 { 214 struct sa11x0_softc *sc = (struct sa11x0_softc *)parent; 215 struct sa11x0_attach_args sa; 216 217 sa.sa_sc = sc; 218 sa.sa_iot = sc->sc_iot; 219 sa.sa_addr = cf->cf_loc[SAIPCF_ADDR]; 220 sa.sa_size = cf->cf_loc[SAIPCF_SIZE]; 221 sa.sa_intr = cf->cf_loc[SAIPCF_INTR]; 222 sa.sa_gpio = cf->cf_loc[SAIPCF_GPIO]; 223 224 if (config_match(parent, cf, &sa) > 0) 225 config_attach(parent, cf, &sa, sa11x0_print); 226 227 return 0; 228 } 229
Indexes created Wed Oct 01 13:09:50 GMT 2025