geode.c revision 1.3.4.1
1 /* $NetBSD: geode.c,v 1.3.4.1 2006/09/09 02:40:14 rpaulo Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 David Young. All rights reserved. 5 * 6 * This code was written by David Young and merged with geodecntr code 7 * by Frank Kardel. 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 by David Young. 20 * 4. The name of David Young may not be used to endorse or promote 21 * products derived from this software without specific prior 22 * written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY 25 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID 28 * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 30 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 32 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 */ 37 /*- 38 * Copyright (c) 2002 The NetBSD Foundation, Inc. 39 * All rights reserved. 40 * 41 * This code is derived from software contributed to The NetBSD Foundation 42 * by Jason R. Thorpe. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by the NetBSD 55 * Foundation, Inc. and its contributors. 56 * 4. Neither the name of The NetBSD Foundation nor the names of its 57 * contributors may be used to endorse or promote products derived 58 * from this software without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 61 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 62 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 63 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 64 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 65 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 66 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 67 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 68 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 69 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 70 * POSSIBILITY OF SUCH DAMAGE. 71 */ 72 73 /* 74 * Device driver for the special devices attached to the GBA (watchdog, high 75 * resolution counter, ...) in the AMD Geode SC1100 processor. 76 */ 77 78 #include <sys/cdefs.h> 79 80 __KERNEL_RCSID(0, "$NetBSD: geode.c,v 1.3.4.1 2006/09/09 02:40:14 rpaulo Exp $"); 81 82 #include <sys/param.h> 83 #include <sys/systm.h> 84 #include <sys/device.h> 85 #include <sys/wdog.h> 86 #include <uvm/uvm_extern.h> 87 #include <machine/bus.h> 88 #include <dev/pci/pcivar.h> 89 #include <dev/pci/pcidevs.h> 90 #include <arch/i386/pci/geodevar.h> 91 #include <arch/i386/pci/geodereg.h> 92 #include <dev/sysmon/sysmonvar.h> 93 94 #ifdef GEODE_DEBUG 95 #define GEODE_DPRINTF(__x) printf __x 96 #else /* GEODE_DEBUG */ 97 #define GEODE_DPRINTF(__x) /* nothing */ 98 #endif 99 100 static int 101 geode_gcb_match(struct device *parent, struct cfdata *match, void *aux) 102 { 103 struct pci_attach_args *pa = aux; 104 105 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NS && 106 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_NS_SC1100_XBUS) 107 return (10); /* XXX beat pchb? -dyoung */ 108 109 return (0); 110 } 111 112 static void 113 geode_gcb_attach(struct device *parent, struct device *self, void *aux) 114 { 115 struct geode_gcb_softc *sc = (void *) self; 116 struct pci_attach_args *pa = aux; 117 uint32_t cba; 118 u_int rev; 119 120 cba = pci_conf_read(pa->pa_pc, pa->pa_tag, SC1100_XBUS_CBA_SCRATCHPAD); 121 sc->sc_iot = pa->pa_iot; 122 if (bus_space_map(sc->sc_iot, (bus_addr_t)cba, SC1100_GCB_SIZE, 0, 123 &sc->sc_ioh) != 0) { 124 aprint_error("%s: unable to map registers\n", 125 sc->sc_dev.dv_xname); 126 return; 127 } 128 129 GEODE_DPRINTF(("%s: mapped %u bytes at %#08" PRIx32 "\n", 130 sc->sc_dev.dv_xname, SC1100_GCB_SIZE, cba)); 131 132 rev = bus_space_read_1(sc->sc_iot, sc->sc_ioh, SC1100_GCB_REV_B); 133 134 aprint_normal(": AMD Geode GCB (rev. 0x%02x)\n", rev); 135 136 while (config_found(self, NULL, NULL) != NULL) 137 /* empty */; 138 } 139 140 CFATTACH_DECL(geodegcb, sizeof(struct geode_gcb_softc), 141 geode_gcb_match, geode_gcb_attach, NULL, NULL); 142
Indexes created Tue Oct 14 08:09:56 GMT 2025