1 /* $NetBSD: pq3diic.c,v 1.7 2022/07/22 23:43:24 thorpej Exp $ */ 2 /*- 3 * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Raytheon BBN Technologies Corp and Defense Advanced Research Projects 8 * Agency and which was developed by Matt Thomas of 3am Software Foundry. 9 * 10 * This material is based upon work supported by the Defense Advanced Research 11 * Projects Agency and Space and Naval Warfare Systems Center, Pacific, under 12 * Contract No. N66001-09-C-2073. 13 * Approved for Public Release, Distribution Unlimited 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: pq3diic.c,v 1.7 2022/07/22 23:43:24 thorpej Exp $"); 39 40 #include "ioconf.h" 41 42 #include <sys/param.h> 43 #include <sys/cpu.h> 44 #include <sys/device.h> 45 #include <sys/tty.h> 46 47 #include <sys/intr.h> 48 #include <sys/bus.h> 49 50 #include <dev/i2c/i2cvar.h> 51 52 #include <dev/i2c/motoi2creg.h> 53 #include <dev/i2c/motoi2cvar.h> 54 55 #include <powerpc/booke/cpuvar.h> 56 #include <powerpc/booke/e500var.h> 57 #include <powerpc/booke/e500reg.h> 58 59 static int pq3diic_match(device_t, cfdata_t, void *); 60 static void pq3diic_attach(device_t, device_t, void *); 61 62 CFATTACH_DECL_NEW(pq3diic, sizeof(struct motoi2c_softc), 63 pq3diic_match, pq3diic_attach, NULL, NULL); 64 65 static int 66 pq3diic_match(device_t parent, cfdata_t cf, void *aux) 67 { 68 69 if (!e500_cpunode_submatch(parent, cf, cf->cf_name, aux)) 70 return 0; 71 72 return 1; 73 } 74 75 #if 0 76 static int 77 pq3diic_intr(void *arg) 78 { 79 struct pq3diic_softc * const sc = arg; 80 81 return motoi2c_intr(&sc->sc_motoi2c); 82 } 83 #endif 84 85 static void 86 pq3diic_attach(device_t parent, device_t self, void *aux) 87 { 88 struct cpunode_softc * const psc = device_private(parent); 89 struct motoi2c_softc * const sc = device_private(self); 90 struct cpunode_attach_args * const cna = aux; 91 struct cpunode_locators * const cnl = &cna->cna_locs; 92 int error; 93 94 psc->sc_children |= cna->cna_childmask; 95 sc->sc_dev = self; 96 97 aprint_normal("\n"); 98 99 sc->sc_iot = cna->cna_memt; 100 error = bus_space_map(sc->sc_iot, cnl->cnl_addr, I2C_SIZE, 101 0, &sc->sc_ioh); 102 if (error) { 103 aprint_error_dev(self, 104 "can't map registers (error = %d)\n", error); 105 return; 106 } 107 108 motoi2c_attach(sc, NULL); 109 110 #if 0 111 /* 112 * XXX e500_intr.c can't handle shared interrupts, but that's 113 * XXX ok, because motoi2c doesn't support using interrupts 114 * XXX at the moment anyway. 115 */ 116 sc->sc_ih = intr_establish(cnl->cnl_intrs[0], IPL_VM, IST_ONCHIP, 117 pq3diic_intr, sc); 118 if (sc->sc_ih == NULL) 119 aprint_error_dev(self, "failed to establish interrupt %d\n", 120 cnl->cnl_intrs[0]); 121 else 122 aprint_normal_dev(self, "interrupting on irq %d\n", 123 cnl->cnl_intrs[0]); 124 #endif 125 } 126