hpc.c revision 1.21
1 /* $NetBSD: hpc.c,v 1.21 2003/12/16 05:27:40 sekiya 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 1.21 2003/12/16 05:27:40 sekiya 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/ioc/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 } hpc_devices[] = { 63 { "zsc", 64 /* XXX Magic numbers */ 65 HPC_PBUS_CH6_DEVREGS + IOC_SERIAL_REGS, 0, 66 29, 67 HPCDEV_IP22 | HPCDEV_IP24 }, 68 69 { "pckbc", 70 HPC_PBUS_CH6_DEVREGS + IOC_KB_REGS, 0, 71 28, 72 HPCDEV_IP22 | HPCDEV_IP24 }, 73 74 { "sq", 75 HPC_ENET_DEVREGS, HPC_ENET_REGS, 76 3, 77 HPCDEV_IP22 | HPCDEV_IP24 }, 78 79 { "wdsc", 80 HPC_SCSI0_DEVREGS, HPC_SCSI0_REGS, 81 1, /* XXX 1 = IRQ_LOCAL0 + 1 */ 82 HPCDEV_IP22 | HPCDEV_IP24 }, 83 84 { "wdsc", 85 HPC_SCSI1_DEVREGS, HPC_SCSI1_REGS, 86 2, /* XXX 2 = IRQ_LOCAL0 + 2 */ 87 HPCDEV_IP22 }, 88 89 { "dpclock", 90 HPC1_PBUS_BBRAM, 0, 91 -1, 92 HPCDEV_IP20 }, 93 94 { "dsclock", 95 HPC_PBUS_BBRAM, 0, 96 -1, 97 HPCDEV_IP22 | HPCDEV_IP24 }, 98 99 { "haltwo", 100 HPC_PBUS_CH0_DEVREGS, HPC_PBUS_DMAREGS, 101 8 + 4, /* XXX IRQ_LOCAL1 + 4 */ 102 HPCDEV_IP22 | HPCDEV_IP24 }, 103 104 { NULL, 105 0, 0, 106 0, 107 0 108 } 109 }; 110 111 struct hpc_softc { 112 struct device sc_dev; 113 114 bus_addr_t sc_base; 115 116 bus_space_tag_t sc_ct; 117 bus_space_handle_t sc_ch; 118 }; 119 120 extern int mach_type; /* IPxx type */ 121 extern int mach_subtype; /* subtype: eg., Guiness/Fullhouse for IP22 */ 122 extern int mach_boardrev; /* machine board revision, in case it matters */ 123 124 extern struct sgimips_bus_dma_tag sgimips_default_bus_dma_tag; 125 126 static int powerintr_established; 127 128 int hpc_match(struct device *, struct cfdata *, void *); 129 void hpc_attach(struct device *, struct device *, void *); 130 int hpc_print(void *, const char *); 131 132 int hpc_submatch(struct device *, struct cfdata *, void *); 133 134 int hpc_power_intr(void *); 135 136 CFATTACH_DECL(hpc, sizeof(struct hpc_softc), 137 hpc_match, hpc_attach, NULL, NULL); 138 139 int 140 hpc_match(struct device *parent, struct cfdata *cf, void *aux) 141 { 142 struct gio_attach_args* ga = aux; 143 144 /* Make sure it's actually there and readable */ 145 if (badaddr((void*)MIPS_PHYS_TO_KSEG1(ga->ga_addr), sizeof(u_int32_t))) 146 return 0; 147 148 return 1; 149 } 150 151 void 152 hpc_attach(struct device *parent, struct device *self, void *aux) 153 { 154 struct hpc_softc *sc = (struct hpc_softc *)self; 155 struct gio_attach_args* ga = aux; 156 struct hpc_attach_args ha; 157 const struct hpc_device *hd; 158 int sysmask, hpctype; 159 160 switch (mach_type) { 161 case MACH_SGI_IP20: 162 hpctype = 15; 163 sysmask = HPCDEV_IP20; 164 break; 165 case MACH_SGI_IP22: 166 hpctype = 3; 167 if (mach_subtype == MACH_SGI_IP22_FULLHOUSE) 168 sysmask = HPCDEV_IP22; 169 else 170 sysmask = HPCDEV_IP24; 171 break; 172 173 default: 174 panic("hpc_attach: can't handle HPC on an IP%d", 175 mach_type); 176 }; 177 178 printf(": SGI HPC%d\n", hpctype); 179 180 sc->sc_ct = 1; 181 sc->sc_ch = ga->ga_ioh; 182 183 sc->sc_base = ga->ga_addr; 184 185 for (hd = hpc_devices; hd->hd_name != NULL; hd++) { 186 if (!(hd->hd_sysmask & sysmask)) 187 continue; 188 189 ha.ha_name = hd->hd_name; 190 ha.ha_devoff = hd->hd_devoff; 191 ha.ha_dmaoff = hd->hd_dmaoff; 192 ha.ha_irq = hd->hd_irq; 193 194 /* XXX This is disgusting. */ 195 ha.ha_st = 1; 196 ha.ha_sh = MIPS_PHYS_TO_KSEG1(sc->sc_base); 197 ha.ha_dmat = &sgimips_default_bus_dma_tag; 198 199 (void) config_found_sm(self, &ha, hpc_print, hpc_submatch); 200 } 201 202 /* 203 * XXX: Only attach the powerfail interrupt once, since the 204 * interrupt code doesn't let you share interrupt just yet. 205 * 206 * Since the powerfail interrupt is hardcoded to read from 207 * a specific register anyway (XXX#2!), we don't care when 208 * it gets attached, as long as it only happens once. 209 */ 210 if (!powerintr_established) { 211 cpu_intr_establish(9, IPL_NONE, hpc_power_intr, sc); 212 powerintr_established++; 213 } 214 } 215 216 int 217 hpc_submatch(struct device *parent, struct cfdata *cf, void *aux) 218 { 219 struct hpc_attach_args *ha = aux; 220 221 if (cf->cf_loc[HPCCF_OFFSET] != HPCCF_OFFSET_DEFAULT && 222 (bus_addr_t) cf->cf_loc[HPCCF_OFFSET] != ha->ha_devoff) 223 return (0); 224 225 return (config_match(parent, cf, aux)); 226 } 227 228 int 229 hpc_print(void *aux, const char *pnp) 230 { 231 struct hpc_attach_args *ha = aux; 232 233 if (pnp) 234 printf("%s at %s", ha->ha_name, pnp); 235 236 printf(" offset 0x%lx", ha->ha_devoff); 237 238 return (UNCONF); 239 } 240 241 int 242 hpc_power_intr(void *arg) 243 { 244 u_int32_t pwr_reg; 245 246 pwr_reg = *((volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(0x1fbd9850)); 247 *((volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(0x1fbd9850)) = pwr_reg; 248 249 printf("hpc_power_intr: panel reg = %08x\n", pwr_reg); 250 251 if (pwr_reg & 2) 252 cpu_reboot(RB_HALT, NULL); 253 254 return 1; 255 } 256
Indexes created Mon Sep 22 13:09:51 GMT 2025