234 lines
6.9 KiB
C
234 lines
6.9 KiB
C
/* $NetBSD: if_cs_smdk24x0.c,v 1.6 2012/11/12 18:00:39 skrll Exp $ */
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/*
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* Copyright (c) 2003 Genetec corporation. All rights reserved.
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* Written by Hiroyuki Bessho for Genetec corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of Genetec corporation may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY GENETEC CORP. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORP.
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* derived from sys/dev/isa/if_cs_isa.c */
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/*
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* Copyright 1997
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* Digital Equipment Corporation. All rights reserved.
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*
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* This software is furnished under license and may be used and
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* copied only in accordance with the following terms and conditions.
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* Subject to these conditions, you may download, copy, install,
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* use, modify and distribute this software in source and/or binary
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* form. No title or ownership is transferred hereby.
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*
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* 1) Any source code used, modified or distributed must reproduce
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* and retain this copyright notice and list of conditions as
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* they appear in the source file.
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*
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* 2) No right is granted to use any trade name, trademark, or logo of
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* Digital Equipment Corporation. Neither the "Digital Equipment
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* Corporation" name nor any trademark or logo of Digital Equipment
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* Corporation may be used to endorse or promote products derived
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* from this software without the prior written permission of
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* Digital Equipment Corporation.
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*
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* 3) This software is provided "AS-IS" and any express or implied
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* warranties, including but not limited to, any implied warranties
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* of merchantability, fitness for a particular purpose, or
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* non-infringement are disclaimed. In no event shall DIGITAL be
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* liable for any damages whatsoever, and in particular, DIGITAL
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* shall not be liable for special, indirect, consequential, or
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* incidental damages or damages for lost profits, loss of
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* revenue or loss of use, whether such damages arise in contract,
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* negligence, tort, under statute, in equity, at law or otherwise,
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* even if advised of the possibility of such damage.
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*/
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/*
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* driver for SMDK24[10]0's on-board CS8900A Ethernet
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*
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* CS8900A is located at CS3 area.
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* A24=1: I/O access
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* A24=0: Memory access
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_cs_smdk24x0.c,v 1.6 2012/11/12 18:00:39 skrll Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <sys/rnd.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <sys/bus.h>
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#include <machine/intr.h>
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#include <arch/arm/s3c2xx0/s3c2410reg.h>
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#include <arch/arm/s3c2xx0/s3c2410var.h>
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#include <dev/ic/cs89x0reg.h>
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#include <dev/ic/cs89x0var.h>
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#include "locators.h"
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#include "opt_smdk2xx0.h" /* SMDK24X0_ETHER_ADDR_FIXED */
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int cs_ssextio_probe(device_t, cfdata_t, void *);
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void cs_ssextio_attach(device_t, device_t, void *);
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/*
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* I/O access is done when A24==1.
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* default value for I/O base address is 0x300
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*/
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#define IOADDR(base) (base + (1<<24) + 0x0300)
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CFATTACH_DECL_NEW(cs_ssextio, sizeof(struct cs_softc),
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cs_ssextio_probe, cs_ssextio_attach, NULL, NULL);
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int
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cs_ssextio_probe(device_t parent, cfdata_t cf, void *aux)
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{
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struct s3c2xx0_attach_args *sa = aux;
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bus_space_tag_t iot = sa->sa_iot;
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bus_space_handle_t ioh;
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struct cs_softc sc;
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int rv = 0, have_io = 0;
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vaddr_t ioaddr;
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if (sa->sa_intr == SSEXTIOCF_INTR_DEFAULT)
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sa->sa_intr = 9;
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if (sa->sa_addr == SSEXTIOCF_ADDR_DEFAULT)
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sa->sa_addr = S3C2410_BANK_START(3);
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/*
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* Map the I/O space.
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*/
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ioaddr = IOADDR(sa->sa_addr);
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if (bus_space_map(iot, ioaddr, CS8900_IOSIZE, 0, &ioh))
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goto out;
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have_io = 1;
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memset(&sc, 0, sizeof sc);
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sc.sc_iot = iot;
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sc.sc_ioh = ioh;
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if (0) {
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int i;
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for (i=0; i <=PKTPG_IND_ADDR; i += 2) {
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if (i % 16 == 0)
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printf( "\n%04x: ", i);
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printf("%04x ", CS_READ_PACKET_PAGE_IO(&sc, i));
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}
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}
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/* Verify that it's a Crystal product. */
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if (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_EISA_NUM) != EISA_NUM_CRYSTAL)
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goto out;
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/*
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* Verify that it's a supported chip.
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*/
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switch (CS_READ_PACKET_PAGE_IO(&sc, PKTPG_PRODUCT_ID) & PROD_ID_MASK) {
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case PROD_ID_CS8900:
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#ifdef notyet
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case PROD_ID_CS8920:
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case PROD_ID_CS8920M:
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#endif
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rv = 1;
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}
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out:
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if (have_io)
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bus_space_unmap(iot, ioh, CS8900_IOSIZE);
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return (rv);
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}
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/* media selection: UTP only */
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static int cs_media[] = {
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IFM_ETHER|IFM_10_T,
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#if 0
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IFM_ETHER|IFM_10_T|IFM_FDX,
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#endif
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};
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void
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cs_ssextio_attach(device_t parent, device_t self, void *aux)
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{
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struct cs_softc *sc = device_private(self);
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struct s3c2xx0_attach_args *sa = aux;
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vaddr_t ioaddr;
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#ifdef SMDK24X0_ETHER_ADDR_FIXED
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static uint8_t enaddr[ETHER_ADDR_LEN] = {SMDK24X0_ETHER_ADDR_FIXED};
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#else
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#define enaddr NULL
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#endif
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sc->sc_dev = self;
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sc->sc_iot = sc->sc_memt = sa->sa_iot;
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/* sc_irq is an IRQ number in ISA world. set 10 for INTRQ0 of CS8900A */
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sc->sc_irq = 10;
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/*
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* Map the device.
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*/
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ioaddr = IOADDR(sa->sa_addr);
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if (bus_space_map(sc->sc_iot, ioaddr, CS8900_IOSIZE, 0, &sc->sc_ioh)) {
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aprint_error(": unable to map i/o space\n");
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return;
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}
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if (bus_space_map(sc->sc_iot, sa->sa_addr, CS8900_MEMSIZE,
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0, &sc->sc_memh))
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aprint_error(": unable to map memory space");
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else {
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sc->sc_cfgflags |= CFGFLG_MEM_MODE;
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sc->sc_pktpgaddr = sa->sa_addr;
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}
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/* CS8900A is very slow. (nOE->Data valid: 135ns max.)
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We need to use IOCHRDY signal */
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sc->sc_cfgflags |= CFGFLG_IOCHRDY;
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sc->sc_ih = s3c2410_extint_establish(sa->sa_intr, IPL_NET, IST_EDGE_RISING,
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cs_intr, sc);
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if (sc->sc_ih == NULL) {
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aprint_error(": unable to establish interrupt\n");
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return;
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}
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aprint_normal("\n");
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/* SMDK24X0 doesn't have EEPRMO hooked to CS8900A */
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sc->sc_cfgflags |= CFGFLG_NOT_EEPROM;
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cs_attach(sc, enaddr, cs_media,
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sizeof(cs_media) / sizeof(cs_media[0]), IFM_ETHER|IFM_10_T);
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}
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