1 /* $NetBSD: cmu.c,v 1.1.1.1 1999/09/16 12:23:31 takemura Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 SASAKI Takesi 5 * Copyright (c) 1999 PocketBSD Project. All rights reserved. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the PocketBSD project 19 * and its contributors. 20 * 4. Neither the name of the project nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 */ 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <mips/cpuregs.h> 42 43 #include <machine/bus.h> 44 45 #include <hpcmips/vr/vr.h> 46 #include <hpcmips/vr/vripvar.h> 47 48 #include <hpcmips/vr/cmureg.h> 49 50 struct vrcmu_softc { 51 struct device sc_dev; 52 bus_space_tag_t sc_iot; 53 bus_space_handle_t sc_ioh; 54 }; 55 56 int vrcmu_match __P((struct device *, struct cfdata *, void *)); 57 void vrcmu_attach __P((struct device *, struct device *, void *)); 58 59 int vrcmu_supply __P((vrcmu_chipset_tag_t, u_int16_t, int)); 60 61 struct vrcmu_function_tag vrcmu_functions = { 62 vrcmu_supply 63 }; 64 65 struct cfattach vrcmu_ca = { 66 sizeof(struct vrcmu_softc), vrcmu_match, vrcmu_attach 67 }; 68 69 int 70 vrcmu_match(parent, cf, aux) 71 struct device *parent; 72 struct cfdata *cf; 73 void *aux; 74 { 75 return 2; /* 1st attach group of vrip */ 76 } 77 78 void 79 vrcmu_attach(parent, self, aux) 80 struct device *parent; 81 struct device *self; 82 void *aux; 83 { 84 struct vrip_attach_args *va = aux; 85 struct vrcmu_softc *sc = (void*)self; 86 87 sc->sc_iot = va->va_iot; 88 if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size, 89 0 /* no flags */, &sc->sc_ioh)) { 90 printf("vrcmu_attach: can't map i/o space\n"); 91 return; 92 } 93 vrip_cmu_function_register(va->va_vc, &vrcmu_functions, self); 94 printf ("\n"); 95 } 96 97 /* For serial console */ 98 void 99 __vrcmu_supply(mask, onoff) 100 u_int16_t mask; 101 int onoff; 102 { 103 u_int16_t reg; 104 u_int32_t addr; 105 addr = MIPS_PHYS_TO_KSEG1(VRIP_CMU_ADDR); 106 reg = *((volatile u_int16_t*)addr); 107 if (onoff) 108 reg |= mask; 109 else 110 reg &= ~mask; 111 *((volatile u_int16_t*)addr) = reg; 112 } 113 114 115 int 116 vrcmu_supply(cc, mask, onoff) 117 vrcmu_chipset_tag_t cc; 118 u_int16_t mask; 119 int onoff; 120 { 121 struct vrcmu_softc *sc = (void*)cc; 122 u_int16_t reg; 123 124 reg = bus_space_read_2(sc->sc_iot, sc->sc_ioh, 0); 125 #ifdef VRCMU_VERBOSE 126 printf("cmu register(enter):"); 127 bitdisp16(reg); 128 #endif 129 if (onoff) 130 reg |= mask; 131 else 132 reg &= ~mask; 133 bus_space_write_2(sc->sc_iot, sc->sc_ioh, 0, reg); 134 #ifdef VRCMU_VERBOSE 135 printf("cmu register(exit) :"); 136 bitdisp16(reg); 137 #endif 138 return 0; 139 } 140 141