1/* $NetBSD: if_smsh_gxio.c,v 1.2 2009/11/29 10:08:15 kiyohara Exp $ */ 2/* 3 * Copyright (c) 2008 KIYOHARA Takashi 4 * All rights reserved. 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: if_smsh_gxio.c,v 1.2 2009/11/29 10:08:15 kiyohara Exp $"); 30 31#include <sys/param.h> 32#include <sys/device.h> 33#include <sys/errno.h> 34#include <sys/bus.h> 35#include <sys/systm.h> 36 37#include <evbarm/gumstix/gumstixvar.h> 38 39#include <net/if.h> 40#include <net/if_ether.h> 41#include <net/if_media.h> 42 43#include <dev/mii/miivar.h> 44 45#include <dev/ic/lan9118var.h> 46#include <dev/ic/lan9118reg.h> 47 48#include "locators.h" 49 50 51static int smsh_gxio_match(device_t, struct cfdata *, void *); 52static void smsh_gxio_attach(device_t, device_t, void *); 53 54static int ether_serial_digit = 1; 55 56CFATTACH_DECL_NEW(smsh_gxio, sizeof(struct lan9118_softc), 57 smsh_gxio_match, smsh_gxio_attach, NULL, NULL); 58 59 60/* ARGSUSED */ 61static int 62smsh_gxio_match(device_t parent, struct cfdata *match, void *aux) 63{ 64 struct gxio_attach_args *gxa = aux; 65 bus_space_tag_t iot = gxa->gxa_iot; 66 bus_space_handle_t ioh; 67 uint32_t val; 68 int rv = 0; 69 70 /* Disallow wildcarded values. */ 71 if (gxa->gxa_addr == GXIOCF_ADDR_DEFAULT) 72 return 0; 73 if (gxa->gxa_gpirq == GXIOCF_GPIRQ_DEFAULT) 74 return 0; 75 76 if (bus_space_map(iot, gxa->gxa_addr, LAN9118_IOSIZE, 0, &ioh) != 0) 77 return 0; 78 79 bus_space_write_4(iot, ioh, LAN9118_BYTE_TEST, 0); 80 val = bus_space_read_4(iot, ioh, LAN9118_BYTE_TEST); 81 if (val == LAN9118_BYTE_TEST_VALUE) 82 /* Assume we have an SMSC LAN9117 */ 83 rv = 1; 84 if (ether_serial_digit > 15) 85 rv = 0; 86 87 bus_space_unmap(iot, ioh, LAN9118_IOSIZE); 88 return rv; 89} 90 91/* ARGSUSED */ 92static void 93smsh_gxio_attach(device_t parent, device_t self, void *aux) 94{ 95 struct lan9118_softc *sc = device_private(self); 96 struct gxio_attach_args *gxa = aux; 97 void *ih; 98 99 KASSERT(system_serial_high != 0 || system_serial_low != 0); 100 101 sc->sc_dev = self; 102 103 /* Map i/o space. */ 104 if (bus_space_map(gxa->gxa_iot, gxa->gxa_addr, LAN9118_IOSIZE, 0, 105 &sc->sc_ioh)) 106 panic("smsh_gxio_attach: can't map i/o space"); 107 sc->sc_iot = gxa->gxa_iot; 108 109 sc->sc_enaddr[0] = ((system_serial_high >> 8) & 0xfe) | 0x02; 110 sc->sc_enaddr[1] = system_serial_high; 111 sc->sc_enaddr[2] = system_serial_low >> 24; 112 sc->sc_enaddr[3] = system_serial_low >> 16; 113 sc->sc_enaddr[4] = system_serial_low >> 8; 114 sc->sc_enaddr[5] = (system_serial_low & 0xc0) | 115 (1 << 4) | ((ether_serial_digit++) & 0x0f); 116 sc->sc_flags = LAN9118_FLAGS_NO_EEPROM; 117 if (lan9118_attach(sc) != 0) { 118 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LAN9118_IOSIZE); 119 return; 120 } 121 122 /* Establish the interrupt handler. */ 123 ih = gxio_intr_establish(gxa->gxa_sc, 124 gxa->gxa_gpirq, IST_EDGE_FALLING, IPL_NET, lan9118_intr, sc); 125 if (ih == NULL) { 126 aprint_error_dev(self, 127 "couldn't establish interrupt handler\n"); 128 bus_space_unmap(sc->sc_iot, sc->sc_ioh, LAN9118_IOSIZE); 129 return; 130 } 131} 132