/* $NetBSD: if_ne_obio.c,v 1.6 2008/03/16 16:08:57 he Exp $ */ /* * Copyright (c) 2002, 2003 Genetec corp. All rights reserved. * Written by Hiroyuki Bessho for Genetec corp. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of Genetec corp. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY GENETEC CORP. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORP. * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: if_ne_obio.c,v 1.6 2008/03/16 16:08:57 he Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/mbuf.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <sys/errno.h> #include <sys/syslog.h> #include <sys/select.h> #include <sys/device.h> #include <net/if.h> #include <net/if_dl.h> #include <net/if_ether.h> #include <net/if_media.h> #include <machine/intr.h> #include <machine/bus.h> #include <dev/mii/mii.h> #include <dev/mii/miivar.h> #include <dev/ic/dp8390reg.h> #include <dev/ic/dp8390var.h> #include <dev/ic/ne2000reg.h> #include <dev/ic/ne2000var.h> #include <evbarm/g42xxeb/g42xxeb_var.h> #include <arm/xscale/pxa2x0var.h> struct ne_obio_softc { struct ne2000_softc nsc; void *sc_ih; /* interrupt handler */ int intr_no; }; int ne_obio_match(device_t, cfdata_t , void *); void ne_obio_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(ne_obio, sizeof (struct ne_obio_softc), ne_obio_match, ne_obio_attach, NULL, NULL); //#define DEBUG_GPIO 2 //#define DEBUG_GPIO2 5 #if 1 #define intr_handler dp8390_intr #else #define intr_handler ne_obio_intr static int ne_obio_intr(void *arg) { int rv=1; #ifdef DEBUG_GPIO //printf( "ne_obio_intr arg=%p\n", arg ); bus_space_write_4( pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, GPIO_GPSR0, 1U<<DEBUG_GPIO ); #endif #if 0 while( (rv = dp8390_intr(arg)) != 0) /*continue*/; #else rv = dp8390_intr(arg); #endif #ifdef DEBUG_GPIO bus_space_write_4( pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, GPIO_GPCR0, 1U<<DEBUG_GPIO ); #endif return rv; } #endif static int ne_obio_enable(struct dp8390_softc *dsc) { struct ne_obio_softc *sc = (struct ne_obio_softc *)dsc; struct obio_softc *psc; aprint_normal_dev(dsc->sc_dev, "enabled\n"); psc = device_private(device_parent(dsc->sc_dev)); /* Establish the interrupt handler. */ sc->sc_ih = obio_intr_establish(psc, sc->intr_no, IPL_NET, IST_LEVEL_LOW, intr_handler, sc); return 0; } int ne_obio_match(device_t parent, cfdata_t match, void *aux ) { /* XXX: probe? */ return 1; } void ne_obio_attach(device_t parent, device_t self, void *aux ) { struct ne_obio_softc *sc = device_private(self); struct obio_attach_args *oba = aux; bus_space_tag_t iot = oba->oba_iot; bus_space_handle_t nioh, aioh; uint8_t my_ea[ETHER_ADDR_LEN]; int i; aprint_normal("\n"); sc->nsc.sc_dp8390.sc_dev = self; /* Map i/o space. */ if (bus_space_map(iot, oba->oba_addr, NE2000_NPORTS, 0, &nioh)) return; if (bus_space_subregion(iot, nioh, NE2000_ASIC_OFFSET, NE2000_ASIC_NPORTS, &aioh)) goto out2; sc->nsc.sc_dp8390.sc_regt = iot; sc->nsc.sc_dp8390.sc_regh = nioh; sc->nsc.sc_asict = iot; sc->nsc.sc_asich = aioh; /* * XXX: * AX88796's reset register doesn't seem to work, and * ne2000_detect() fails. We hardcord NIC type here. */ sc->nsc.sc_type = NE2000_TYPE_NE2000; /* XXX _AX88796 ? */ sc->nsc.sc_dp8390.sc_flags = DP8390_NO_REMOTE_DMA_COMPLETE; /* DP8390_NO_MULTI_BUFFERING; XXX */ /* G4250EBX doesn't have EEPROM hooked to AX88796. Read MAC * address set by Redboot and don't let ne2000_atthch() try to * read MAC from hardware. (current ne2000 driver doesn't * support AX88796's EEPROM interface) */ bus_space_write_1( iot, nioh, ED_P0_CR, ED_CR_RD2|ED_CR_PAGE_1 ); for( i=0; i < ETHER_ADDR_LEN; ++i ) my_ea[i] = bus_space_read_1( iot, nioh, ED_P1_PAR0+i ); bus_space_write_1( iot, nioh, ED_P0_CR, ED_CR_RD2|ED_CR_PAGE_0 ); /* disable all interrupts */ bus_space_write_1(iot, nioh, ED_P0_IMR, 0); #ifdef DEBUG_GPIO bus_space_write_4( pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, GPIO_GPDR0, (0x01<<DEBUG_GPIO) | (0x01<<DEBUG_GPIO2) | bus_space_read_4(pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, GPIO_GPDR0)); #endif /* delay intr_establish until this IF is enabled to avoid spurious interrupts. */ sc->nsc.sc_dp8390.sc_enabled = 0; sc->nsc.sc_dp8390.sc_enable = ne_obio_enable; sc->intr_no = oba->oba_intr; if( ne2000_attach( &sc->nsc, my_ea ) ) goto out; #ifndef ED_DCR_RDCR #define ED_DCR_RDCR 0 #endif bus_space_write_1(iot, nioh, ED_P0_DCR, ED_DCR_RDCR|ED_DCR_WTS); return; out: bus_space_unmap( iot, aioh, NE2000_ASIC_NPORTS ); out2: bus_space_unmap( iot, nioh, NE2000_NPORTS ); return; } #if 0 void debug_obio_ne(struct dp8390_softc *); void debug_obio_ne(struct dp8390_softc *sc) { struct obio_softc *osc = (struct obio_softc *)device_parent(&sc->sc_dev); struct pxa2x0_softc *psc = (struct pxa2x0_softc *)device_parent(&osc->sc_dev); printf( "ISR=%02x obio: pending=(%x,%x) mask=%x pending=%x mask=%x\n", bus_space_read_1(sc->sc_regt, sc->sc_regh, ED_P0_ISR ), bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTSTS1), bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTSTS2), bus_space_read_2(osc->sc_iot, osc->sc_obioreg_ioh, G4250EBX_INTMASK), osc->sc_intr_pending, osc->sc_intr_mask ); printf( "intc: mask=%08x pending=%08x\n", bus_space_read_4(psc->saip.sc_iot, psc->saip.sc_ioh, SAIPIC_MR ), bus_space_read_4(psc->saip.sc_iot, psc->saip.sc_ioh, SAIPIC_IP ) ); } #endif #ifdef DEBUG_GPIO2 void dp8390_debug_overrun(void); void dp8390_debug_overrun(void) { static int toggle=0; //printf( "ne_obio_intr arg=%p\n", arg ); bus_space_write_4( pxa2x0_softc->saip.sc_iot, pxa2x0_softc->saip.sc_gpioh, toggle ? GPIO_GPCR0 : GPIO_GPSR0, 1U<<DEBUG_GPIO2 ); toggle ^= 1; } #endif