hpc.c revision 1.14
1 /* $NetBSD: hpc.c,v 1.14 2003/09/25 16:35:50 lonewolf Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Soren S. Jorvang 5 * Copyright (c) 2001 Rafal K. Boni 6 * Copyright (c) 2001 Jason R. Thorpe 7 * All rights reserved. 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 for the 20 * NetBSD Project. See http://www.netbsd.org/ for 21 * information about NetBSD. 22 * 4. The name of the author may not be used to endorse or promote products 23 * derived from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: hpc.c,v 1.14 2003/09/25 16:35:50 lonewolf Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/device.h> 43 #include <sys/reboot.h> 44 45 #include <machine/machtype.h> 46 47 #include <sgimips/gio/gioreg.h> 48 #include <sgimips/gio/giovar.h> 49 50 #include <sgimips/hpc/hpcvar.h> 51 #include <sgimips/hpc/hpcreg.h> 52 #include <sgimips/hpc/iocreg.h> 53 54 #include "locators.h" 55 56 const struct hpc_device { 57 const char *hd_name; 58 bus_addr_t hd_devoff; 59 bus_addr_t hd_dmaoff; 60 int hd_irq; 61 int hd_sysmask; 62 #define HPCDEV_IP22 (1U << 0) /* Indigo2 */ 63 #define HPCDEV_IP24 (1U << 1) /* Indy */ 64 } hpc_devices[] = { 65 { "zsc", 66 /* XXX Magic numbers */ 67 HPC_PBUS_CH6_DEVREGS + 0x30, 0, 68 29, 69 HPCDEV_IP22 | HPCDEV_IP24 }, 70 71 { "sq", 72 HPC_ENET_DEVREGS, HPC_ENET_REGS, 73 3, 74 HPCDEV_IP22 | HPCDEV_IP24 }, 75 76 { "wdsc", 77 HPC_SCSI0_DEVREGS, HPC_SCSI0_REGS, 78 1, /* XXX 1 = IRQ_LOCAL0 + 1 */ 79 HPCDEV_IP22 | HPCDEV_IP24 }, 80 81 { "wdsc", 82 HPC_SCSI1_DEVREGS, HPC_SCSI1_REGS, 83 2, /* XXX 2 = IRQ_LOCAL0 + 2 */ 84 HPCDEV_IP22 }, 85 86 { "dsclock", 87 HPC_PBUS_BBRAM, 0, 88 -1, 89 HPCDEV_IP22 | HPCDEV_IP24 }, 90 91 { "haltwo", 92 HPC_PBUS_CH0_DEVREGS, HPC_PBUS_DMAREGS, 93 8 + 4, /* XXX IRQ_LOCAL1 + 4 */ 94 HPCDEV_IP24 }, 95 96 { NULL, 97 0, 0, 98 0, 99 0 100 } 101 }; 102 103 struct hpc_softc { 104 struct device sc_dev; 105 106 bus_addr_t sc_base; 107 108 bus_space_tag_t sc_ct; 109 bus_space_handle_t sc_ch; 110 }; 111 112 extern int mach_type; /* IPxx type */ 113 extern int mach_subtype; /* subtype: eg., Guiness/Fullhouse for IP22 */ 114 extern int mach_boardrev; /* machine board revision, in case it matters */ 115 116 extern struct sgimips_bus_dma_tag sgimips_default_bus_dma_tag; 117 118 static int powerintr_established; 119 120 int hpc_match(struct device *, struct cfdata *, void *); 121 void hpc_attach(struct device *, struct device *, void *); 122 int hpc_print(void *, const char *); 123 124 int hpc_submatch(struct device *, struct cfdata *, void *); 125 126 int hpc_power_intr(void *); 127 128 CFATTACH_DECL(hpc, sizeof(struct hpc_softc), 129 hpc_match, hpc_attach, NULL, NULL); 130 131 int 132 hpc_match(struct device *parent, struct cfdata *cf, void *aux) 133 { 134 struct gio_attach_args* ga = aux; 135 136 /* Make sure it's actually there and readable */ 137 if (badaddr((void*)MIPS_PHYS_TO_KSEG1(ga->ga_addr), sizeof(u_int32_t))) 138 return 0; 139 140 return 1; 141 } 142 143 void 144 hpc_attach(struct device *parent, struct device *self, void *aux) 145 { 146 struct hpc_softc *sc = (struct hpc_softc *)self; 147 struct gio_attach_args* ga = aux; 148 struct hpc_attach_args ha; 149 const struct hpc_device *hd; 150 int sysmask, hpctype; 151 152 switch (mach_type) { 153 case MACH_SGI_IP22: 154 hpctype = 3; 155 if (mach_subtype == MACH_SGI_IP22_FULLHOUSE) 156 sysmask = HPCDEV_IP22; 157 else 158 sysmask = HPCDEV_IP24; 159 break; 160 161 default: 162 panic("hpc_attach: can't handle HPC on an IP%d", 163 mach_type); 164 }; 165 166 printf(": SGI HPC%d\n", hpctype); 167 168 sc->sc_ct = 1; 169 sc->sc_ch = ga->ga_ioh; 170 171 sc->sc_base = ga->ga_addr; 172 173 for (hd = hpc_devices; hd->hd_name != NULL; hd++) { 174 if (!(hd->hd_sysmask & sysmask)) 175 continue; 176 177 ha.ha_name = hd->hd_name; 178 ha.ha_devoff = hd->hd_devoff; 179 ha.ha_dmaoff = hd->hd_dmaoff; 180 ha.ha_irq = hd->hd_irq; 181 182 /* XXX This is disgusting. */ 183 ha.ha_st = 1; 184 ha.ha_sh = MIPS_PHYS_TO_KSEG1(sc->sc_base); 185 ha.ha_dmat = &sgimips_default_bus_dma_tag; 186 187 (void) config_found_sm(self, &ha, hpc_print, hpc_submatch); 188 } 189 190 /* 191 * XXX: Only attach the powerfail interrupt once, since the 192 * interrupt code doesn't let you share interrupt just yet. 193 * 194 * Since the powerfail interrupt is hardcoded to read from 195 * a specific register anyway (XXX#2!), we don't care when 196 * it gets attached, as long as it only happens once. 197 */ 198 if (!powerintr_established) { 199 cpu_intr_establish(9, IPL_NONE, hpc_power_intr, sc); 200 powerintr_established++; 201 } 202 } 203 204 int 205 hpc_submatch(struct device *parent, struct cfdata *cf, void *aux) 206 { 207 struct hpc_attach_args *ha = aux; 208 209 if (cf->cf_loc[HPCCF_OFFSET] != HPCCF_OFFSET_DEFAULT && 210 (bus_addr_t) cf->cf_loc[HPCCF_OFFSET] != ha->ha_devoff) 211 return (0); 212 213 return (config_match(parent, cf, aux)); 214 } 215 216 int 217 hpc_print(void *aux, const char *pnp) 218 { 219 struct hpc_attach_args *ha = aux; 220 221 if (pnp) 222 printf("%s at %s", ha->ha_name, pnp); 223 224 printf(" offset 0x%lx", ha->ha_devoff); 225 226 return (UNCONF); 227 } 228 229 int 230 hpc_power_intr(void *arg) 231 { 232 u_int32_t pwr_reg; 233 234 pwr_reg = *((volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(0x1fbd9850)); 235 *((volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(0x1fbd9850)) = pwr_reg; 236 237 printf("hpc_power_intr: panel reg = %08x\n", pwr_reg); 238 239 if (pwr_reg & 2) 240 cpu_reboot(RB_HALT, NULL); 241 242 return 1; 243 } 244
Indexes created Mon Sep 22 10:09:38 GMT 2025