1/* $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem Exp $ */ 2 3/*- 4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 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 NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38/* 39 * On-board device autoconfiguration support for Intel IQ80321 40 * evaluation boards. 41 */ 42 43#include <sys/cdefs.h> 44__FBSDID("$FreeBSD$"); 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/bus.h> 49#include <sys/kernel.h> 50#include <sys/module.h> 51#include <sys/rman.h> 52#include <sys/malloc.h> 53 54#include <machine/bus.h> 55 56#include <arm/xscale/i8134x/i81342reg.h> 57#include <arm/xscale/i8134x/obiovar.h> 58 59 60static int 61obio_probe(device_t dev) 62{ 63 return (0); 64} 65 66static int 67obio_attach(device_t dev) 68{ 69 struct obio_softc *sc = device_get_softc(dev); 70 71 sc->oba_st = &obio_bs_tag; 72 sc->oba_rman.rm_type = RMAN_ARRAY; 73 sc->oba_rman.rm_descr = "OBIO I/O"; 74 if (rman_init(&sc->oba_rman) != 0 || 75 rman_manage_region(&sc->oba_rman, 76 IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0) 77 panic("obio_attach: failed to set up I/O rman"); 78 sc->oba_irq_rman.rm_type = RMAN_ARRAY; 79 sc->oba_irq_rman.rm_descr = "OBIO IRQ"; 80 if (rman_init(&sc->oba_irq_rman) != 0 || 81 rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0) 82 panic("obio_attach: failed to set up IRQ rman"); 83 device_add_child(dev, "uart", 0); 84 device_add_child(dev, "uart", 1); 85 bus_generic_probe(dev); 86 bus_generic_attach(dev); 87 return (0); 88} 89 90static struct resource * 91obio_alloc_resource(device_t bus, device_t child, int type, int *rid, 92 u_long start, u_long end, u_long count, u_int flags) 93{ 94 struct resource *rv; 95 struct rman *rm; 96 bus_space_tag_t bt = NULL; 97 bus_space_handle_t bh = 0; 98 struct obio_softc *sc = device_get_softc(bus); 99 int unit = device_get_unit(child); 100 101 switch (type) { 102 case SYS_RES_IRQ: 103 rm = &sc->oba_irq_rman; 104 if (unit == 0) 105 start = end = ICU_INT_UART0; 106 else 107 start = end = ICU_INT_UART1; 108 break; 109 case SYS_RES_MEMORY: 110 return (NULL); 111 case SYS_RES_IOPORT: 112 rm = &sc->oba_rman; 113 bt = sc->oba_st; 114 if (unit == 0) { 115 bh = IOP34X_UART0_VADDR; 116 start = bh; 117 end = IOP34X_UART1_VADDR; 118 } else { 119 bh = IOP34X_UART1_VADDR; 120 start = bh; 121 end = start + 0x40; 122 } 123 break; 124 default: 125 return (NULL); 126 } 127 128 129 rv = rman_reserve_resource(rm, start, end, count, flags, child); 130 if (rv == NULL) 131 return (NULL); 132 if (type == SYS_RES_IRQ) 133 return (rv); 134 rman_set_rid(rv, *rid); 135 rman_set_bustag(rv, bt); 136 rman_set_bushandle(rv, bh); 137 138 return (rv); 139 140} 141 142static int 143obio_activate_resource(device_t bus, device_t child, int type, int rid, 144 struct resource *r) 145{ 146 return (0); 147} 148static device_method_t obio_methods[] = { 149 DEVMETHOD(device_probe, obio_probe), 150 DEVMETHOD(device_attach, obio_attach), 151 152 DEVMETHOD(bus_alloc_resource, obio_alloc_resource), 153 DEVMETHOD(bus_activate_resource, obio_activate_resource), 154 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 155 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 156 157 {0, 0}, 158}; 159 160static driver_t obio_driver = { 161 "obio", 162 obio_methods, 163 sizeof(struct obio_softc), 164}; 165static devclass_t obio_devclass; 166 167DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0); 168