1/* $NetBSD: sa11x0.c,v 1.14 2003/07/15 00:24:50 lukem 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/*- 19 * Copyright (c) 1999 20 * Shin Takemura and PocketBSD Project. All rights reserved. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the above copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * This product includes software developed by the PocketBSD project 33 * and its contributors. 34 * 4. Neither the name of the project nor the names of its contributors 35 * may be used to endorse or promote products derived from this software 36 * without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 41 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * 50 */ 51 52#include <sys/cdefs.h> 53__FBSDID("$FreeBSD$"); 54 55#include <sys/param.h> 56#include <sys/systm.h> 57#include <sys/bus.h> 58#include <sys/kernel.h> 59#include <sys/reboot.h> 60#include <sys/malloc.h> 61#include <sys/interrupt.h> 62#include <sys/module.h> 63#include <sys/rman.h> 64 65#include <vm/vm.h> 66#include <vm/vm_extern.h> 67 68#include <machine/cpu.h> 69#include <machine/bus.h> 70#include <machine/intr.h> 71#include <arm/sa11x0/sa11x0_reg.h> 72#include <arm/sa11x0/sa11x0_var.h> 73#include <arm/sa11x0/sa11x0_dmacreg.h> 74#include <arm/sa11x0/sa11x0_ppcreg.h> 75#include <arm/sa11x0/sa11x0_gpioreg.h> 76 77extern void sa11x0_activateirqs(void); 78 79static struct resource *sa1110_alloc_resource(device_t, device_t, int, int *, 80 u_long, u_long, u_long, u_int); 81 82static int sa1110_activate_resource(device_t, device_t, int, int, 83 struct resource *); 84static int sa1110_setup_intr(device_t, device_t, struct resource *, int, 85 driver_filter_t *, driver_intr_t *, void *, void **); 86 87struct sa11x0_softc *sa11x0_softc; /* There can be only one. */ 88 89static int 90sa1110_setup_intr(device_t dev, device_t child, 91 struct resource *ires, int flags, driver_filter_t *filt, 92 driver_intr_t *intr, void *arg, void **cookiep) 93{ 94 int saved_cpsr; 95 96 if (flags & INTR_TYPE_TTY) 97 rman_set_start(ires, 15); 98 else if (flags & INTR_TYPE_CLK) { 99 if (rman_get_start(ires) == 0) 100 rman_set_start(ires, 26); 101 else 102 rman_set_start(ires, 27); 103 } 104 saved_cpsr = SetCPSR(I32_bit, I32_bit); 105 106 SetCPSR(I32_bit, saved_cpsr & I32_bit); 107 BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt, 108 intr, arg, cookiep); 109 return (0); 110} 111 112static struct resource * 113sa1110_alloc_resource(device_t bus, device_t child, int type, int *rid, 114 u_long start, u_long end, u_long count, u_int flags) 115{ 116 struct resource *res; 117 118 res = rman_reserve_resource(&sa11x0_softc->sa11x0_rman, *rid, *rid, 119 count, flags, child); 120 if (res != NULL) 121 rman_set_rid(res, *rid); 122 123 return (res); 124} 125static int 126sa1110_activate_resource(device_t bus, device_t child, int type, int rid, 127 struct resource *r) 128{ 129 return (0); 130} 131/* prototypes */ 132static int sa11x0_probe(device_t); 133static int sa11x0_attach(device_t); 134static void sa11x0_identify(driver_t *, device_t); 135 136extern vm_offset_t saipic_base; 137 138 139int 140sa11x0_probe(device_t dev) 141{ 142 return 0; 143} 144 145void 146sa11x0_identify(driver_t *driver, device_t parent) 147{ 148 149 BUS_ADD_CHILD(parent, 0, "saip", 0); 150} 151 152int 153sa11x0_attach(device_t dev) 154{ 155 struct sa11x0_softc *sc = device_get_softc(dev); 156 int unit = device_get_unit(dev); 157 sc->sc_iot = &sa11x0_bs_tag; 158 159 sa11x0_softc = sc; 160 161 /* Map the SAIP */ 162 163 if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS, 164 0, &sc->sc_ioh)) 165 panic("saip%d: Cannot map registers", unit); 166 saipic_base = sc->sc_ioh; 167 168 /* Map the GPIO registers */ 169 if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS, 170 0, &sc->sc_gpioh)) 171 panic("saip%d: unable to map GPIO registers", unit); 172 bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff); 173 174 /* Map the PPC registers */ 175 if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS, 176 0, &sc->sc_ppch)) 177 panic("saip%d: unable to map PPC registers", unit); 178 179#if 0 180 /* Map the DMA controller registers */ 181 if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS, 182 0, &sc->sc_dmach)) 183 panic("saip%d: unable to map DMAC registers", unit); 184#endif 185 /* Map the reset controller registers */ 186 if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE, 187 0, &sc->sc_reseth)) 188 panic("saip%d: unable to map reset registers", unit); 189 printf("\n"); 190 191 192 /* 193 * Mask all interrupts. 194 * They are later unmasked at each device's attach routine. 195 */ 196 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0); 197 198 /* Route all bits to IRQ */ 199 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0); 200 201 /* Exit idle mode only when unmasked intr is received */ 202 bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1); 203#if 0 204 /* disable all DMAC channels */ 205 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1); 206 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1); 207 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1); 208 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1); 209 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1); 210 bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1); 211#endif 212 /* 213 * XXX this is probably a bad place, but intr bit shouldn't be 214 * XXX enabled before intr mask is set. 215 * XXX Having sane imask[] suffice?? 216 */ 217#if 0 218 SetCPSR(I32_bit, 0); 219#endif 220 /* 221 * Attach each devices 222 */ 223 sc->sa11x0_rman.rm_type = RMAN_ARRAY; 224 sc->sa11x0_rman.rm_descr = "SA11x0 IRQs"; 225 if (rman_init(&sc->sa11x0_rman) != 0 || 226 rman_manage_region(&sc->sa11x0_rman, 0, 32) != 0) 227 panic("sa11x0_attach: failed to set up rman"); 228 device_add_child(dev, "uart", 0); 229 device_add_child(dev, "saost", 0); 230 bus_generic_probe(dev); 231 bus_generic_attach(dev); 232 sa11x0_activateirqs(); 233 return (0); 234} 235 236static device_method_t saip_methods[] = { 237 DEVMETHOD(device_probe, sa11x0_probe), 238 DEVMETHOD(device_attach, sa11x0_attach), 239 DEVMETHOD(device_identify, sa11x0_identify), 240 DEVMETHOD(bus_alloc_resource, sa1110_alloc_resource), 241 DEVMETHOD(bus_activate_resource, sa1110_activate_resource), 242 DEVMETHOD(bus_setup_intr, sa1110_setup_intr), 243 {0, 0}, 244}; 245 246static driver_t saip_driver = { 247 "saip", 248 saip_methods, 249 sizeof(struct sa11x0_softc), 250}; 251static devclass_t saip_devclass; 252 253DRIVER_MODULE(saip, nexus, saip_driver, saip_devclass, 0, 0); 254