if_sn_jazzio.c revision 1.10 
1/*	$NetBSD: if_sn_jazzio.c,v 1.10 2008/04/23 13:29:45 tsutsui Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the NetBSD
21 *	Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39/*
40 * Microsoft JAZZ front-end for for the National Semiconductor DP83932
41 * Systems-Oriented Network Interface Controller (SONIC).
42 */
43
44#include <sys/cdefs.h>
45__KERNEL_RCSID(0, "$NetBSD: if_sn_jazzio.c,v 1.10 2008/04/23 13:29:45 tsutsui Exp $");
46
47#include "bpfilter.h"
48
49#include <sys/param.h>
50#include <sys/systm.h>
51#include <sys/mbuf.h>
52#include <sys/malloc.h>
53#include <sys/kernel.h>
54#include <sys/socket.h>
55#include <sys/ioctl.h>
56#include <sys/errno.h>
57#include <sys/device.h>
58#include <sys/kcore.h>
59
60#include <net/if.h>
61#include <net/if_dl.h>
62#include <net/if_ether.h>
63
64#include <machine/autoconf.h>
65#include <machine/bus.h>
66#include <machine/intr.h>
67
68#include <dev/ic/dp83932reg.h>
69#include <dev/ic/dp83932var.h>
70
71#include <arc/arc/arcbios.h>
72#include <arc/jazz/jazziovar.h>
73
74int	sonic_jazzio_match(device_t, cfdata_t, void *);
75void	sonic_jazzio_attach(device_t, device_t, void *);
76
77CFATTACH_DECL_NEW(sn_jazzio, sizeof(struct sonic_softc),
78    sonic_jazzio_match, sonic_jazzio_attach, NULL, NULL);
79
80int
81sonic_jazzio_match(device_t parent, cfdata_t cf, void *aux)
82{
83	struct jazzio_attach_args *ja = aux;
84
85	if (strcmp(ja->ja_name, "SONIC") != 0)
86		return 0;
87
88	return 1;
89}
90
91void
92sonic_jazzio_attach(device_t parent, device_t self, void *aux)
93{
94	struct sonic_softc *sc = device_private(self);
95	struct jazzio_attach_args *ja = aux;
96	int i;
97	uint8_t enaddr[ETHER_ADDR_LEN];
98
99	sc->sc_dev = self;
100	sc->sc_st = ja->ja_bust;
101	sc->sc_dmat = ja->ja_dmat;
102
103	aprint_normal(": SONIC Ethernet\n");
104
105	/* Map the device. */
106	if (bus_space_map(sc->sc_st, ja->ja_addr, SONIC_NREGS * 4,
107	    0, &sc->sc_sh) != 0) {
108		aprint_error_dev(sc->sc_dev, "unable to map SONIC registers\n");
109		return;
110	}
111
112	/* We run in 32-bit mode. */
113	sc->sc_32bit = 1;
114
115	/* BMODE is set for little-endian. */
116	sc->sc_bigendian = 0;
117
118	/* Regs are 16-bit, plus 16-bit pad. */
119	for (i = 0; i < SONIC_NREGS; i++)
120		sc->sc_regmap[i] = i * 4;
121
122	/*
123	 * Configure DCR:
124	 *
125	 *	- Latched bug retry
126	 *	- Synchronous bus (memory cycle 2 clocks)
127	 *	- 0 wait states added (WC0,WC1 == 0,0)
128	 *	- 4 byte Rx DMA threshold (RFT0,RFT1 == 0,0)
129	 *	- 28 byte Tx DMA threshold (TFT0,TFT1 == 1,1)
130	 *	  XXX There was a comment
131	 *	  	"XXX RFT & TFT according to MIPS manual"
132	 *	      in old MD sys/arch/arc/dev/if_sn.c in Attic.
133	 */
134	sc->sc_dcr = DCR_LBR | DCR_SBUS | DCR_TFT0 | DCR_TFT1;
135	sc->sc_dcr2 = 0;
136
137	/* Hook up our interrupt handler. */
138	jazzio_intr_establish(ja->ja_intr, sonic_intr, sc);
139
140	/* The Ethernet address is from the product ID. */
141	memcpy(enaddr, arc_product_id, sizeof(enaddr));
142
143	/* Finish off the attach. */
144	sonic_attach(sc, enaddr);
145}
146