1 /* $NetBSD: uni-n.c,v 1.7 2017/09/15 21:33:52 macallan Exp $ */ 2 3 /*- 4 * Copyright (C) 2005 Michael Lorenz. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * a driver to match the uni_n node in OF's device tree and attach its children 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: uni-n.c,v 1.7 2017/09/15 21:33:52 macallan Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 41 #include <dev/ofw/openfirm.h> 42 #include <dev/ofw/ofw_pci.h> 43 44 #include <machine/autoconf.h> 45 46 static void uni_n_attach(device_t, device_t, void *); 47 static int uni_n_match(device_t, cfdata_t, void *); 48 static int uni_n_print(void *, const char *); 49 50 struct uni_n_softc { 51 device_t sc_dev; 52 struct powerpc_bus_space sc_memt; 53 int sc_node; 54 }; 55 56 CFATTACH_DECL_NEW(uni_n, sizeof(struct uni_n_softc), 57 uni_n_match, uni_n_attach, NULL, NULL); 58 59 int 60 uni_n_match(device_t parent, cfdata_t cf, void *aux) 61 { 62 struct confargs *ca = aux; 63 char compat[32]; 64 if ((strcmp(ca->ca_name, "uni-n") != 0) && 65 (strcmp(ca->ca_name, "u4") != 0)) 66 return 0; 67 68 memset(compat, 0, sizeof(compat)); 69 #if 0 70 OF_getprop(ca->ca_node, "compatible", compat, sizeof(compat)); 71 if (strcmp(compat, "uni-north") != 0) 72 return 0; 73 #endif 74 return 1; 75 } 76 77 /* 78 * Attach all the sub-devices we can find 79 */ 80 void 81 uni_n_attach(device_t parent, device_t self, void *aux) 82 { 83 struct uni_n_softc *sc = device_private(self); 84 struct confargs *our_ca = aux; 85 struct confargs ca; 86 int node, child, namelen; 87 u_int reg[20]; 88 int intr[6]; 89 char name[32]; 90 91 sc->sc_dev = self; 92 node = our_ca->ca_node; 93 sc->sc_node = node; 94 printf(" address 0x%08x\n",our_ca->ca_reg[0]); 95 96 memset(&sc->sc_memt, 0, sizeof(struct powerpc_bus_space)); 97 sc->sc_memt.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE; 98 if (ofwoea_map_space(RANGE_TYPE_MACIO, RANGE_MEM, node, &sc->sc_memt, 99 "uni-n mem-space") != 0) { 100 panic("Can't init uni-n mem tag"); 101 } 102 103 for (child = OF_child(node); child; child = OF_peer(child)) { 104 namelen = OF_getprop(child, "name", name, sizeof(name)); 105 if (namelen < 0) 106 continue; 107 if (namelen >= sizeof(name)) 108 continue; 109 110 name[namelen] = 0; 111 ca.ca_name = name; 112 ca.ca_node = child; 113 ca.ca_tag = &sc->sc_memt; 114 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 115 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 116 sizeof(intr)); 117 if (ca.ca_nintr == -1) 118 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 119 sizeof(intr)); 120 121 ca.ca_reg = reg; 122 ca.ca_intr = intr; 123 config_found(self, &ca, uni_n_print); 124 } 125 } 126 127 int 128 uni_n_print(void *aux, const char *uni_n) 129 { 130 struct confargs *ca = aux; 131 if (uni_n) 132 aprint_normal("%s at %s", ca->ca_name, uni_n); 133 134 if (ca->ca_nreg > 0) 135 aprint_normal(" address 0x%x", ca->ca_reg[0]); 136 137 return UNCONF; 138 } 139