xref: /openbmc/u-boot/drivers/net/ne2000.c (revision 3ba98ed8)
1 /*
2 Ported to U-Boot by Christian Pellegrin <chri@ascensit.com>
3 
4 Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and
5 eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world
6 are GPL, so this is, of course, GPL.
7 
8 ==========================================================================
9 
10 dev/if_dp83902a.c
11 
12 Ethernet device driver for NS DP83902a ethernet controller
13 
14 ==========================================================================
15 ####ECOSGPLCOPYRIGHTBEGIN####
16 -------------------------------------------
17 This file is part of eCos, the Embedded Configurable Operating System.
18 Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
19 
20 eCos is free software; you can redistribute it and/or modify it under
21 the terms of the GNU General Public License as published by the Free
22 Software Foundation; either version 2 or (at your option) any later version.
23 
24 eCos is distributed in the hope that it will be useful, but WITHOUT ANY
25 WARRANTY; without even the implied warranty of MERCHANTABILITY or
26 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
27 for more details.
28 
29 You should have received a copy of the GNU General Public License along
30 with eCos; if not, write to the Free Software Foundation, Inc.,
31 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
32 
33 As a special exception, if other files instantiate templates or use macros
34 or inline functions from this file, or you compile this file and link it
35 with other works to produce a work based on this file, this file does not
36 by itself cause the resulting work to be covered by the GNU General Public
37 License. However the source code for this file must still be made available
38 in accordance with section (3) of the GNU General Public License.
39 
40 This exception does not invalidate any other reasons why a work based on
41 this file might be covered by the GNU General Public License.
42 
43 Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
44 at http://sources.redhat.com/ecos/ecos-license/
45 -------------------------------------------
46 ####ECOSGPLCOPYRIGHTEND####
47 ####BSDCOPYRIGHTBEGIN####
48 
49 -------------------------------------------
50 
51 Portions of this software may have been derived from OpenBSD or other sources,
52 and are covered by the appropriate copyright disclaimers included herein.
53 
54 -------------------------------------------
55 
56 ####BSDCOPYRIGHTEND####
57 ==========================================================================
58 #####DESCRIPTIONBEGIN####
59 
60 Author(s):	gthomas
61 Contributors:	gthomas, jskov, rsandifo
62 Date:		2001-06-13
63 Purpose:
64 Description:
65 
66 FIXME:		Will fail if pinged with large packets (1520 bytes)
67 Add promisc config
68 Add SNMP
69 
70 ####DESCRIPTIONEND####
71 
72 ==========================================================================
73 */
74 
75 #include <common.h>
76 #include <command.h>
77 
78 /* NE2000 base header file */
79 #include "ne2000_base.h"
80 
81 /* find prom (taken from pc_net_cs.c from Linux) */
82 
83 #include "8390.h"
84 /*
85 typedef struct hw_info_t {
86 	u_int	offset;
87 	u_char	a0, a1, a2;
88 	u_int	flags;
89 } hw_info_t;
90 */
91 #define DELAY_OUTPUT	0x01
92 #define HAS_MISC_REG	0x02
93 #define USE_BIG_BUF	0x04
94 #define HAS_IBM_MISC	0x08
95 #define IS_DL10019	0x10
96 #define IS_DL10022	0x20
97 #define HAS_MII		0x40
98 #define USE_SHMEM	0x80	/* autodetected */
99 
100 #define AM79C9XX_HOME_PHY	0x00006B90	/* HomePNA PHY */
101 #define AM79C9XX_ETH_PHY	0x00006B70	/* 10baseT PHY */
102 #define MII_PHYID_REV_MASK	0xfffffff0
103 #define MII_PHYID_REG1		0x02
104 #define MII_PHYID_REG2		0x03
105 
106 static hw_info_t hw_info[] = {
107 	{ /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
108 	{ /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
109 	{ /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
110 	{ /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
111 			DELAY_OUTPUT | HAS_IBM_MISC },
112 	{ /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
113 	{ /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
114 	{ /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
115 	{ /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
116 	{ /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
117 	{ /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
118 	{ /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
119 			HAS_MISC_REG | HAS_IBM_MISC },
120 	{ /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
121 	{ /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
122 	{ /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
123 			HAS_MISC_REG | HAS_IBM_MISC },
124 	{ /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
125 			HAS_MISC_REG | HAS_IBM_MISC },
126 	{ /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
127 			HAS_MISC_REG | HAS_IBM_MISC },
128 	{ /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
129 			HAS_MISC_REG | HAS_IBM_MISC },
130 	{ /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
131 			HAS_MISC_REG | HAS_IBM_MISC },
132 	{ /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
133 			HAS_MISC_REG | HAS_IBM_MISC },
134 	{ /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
135 			HAS_MISC_REG | HAS_IBM_MISC },
136 	{ /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
137 			HAS_MISC_REG | HAS_IBM_MISC },
138 	{ /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
139 			HAS_MISC_REG | HAS_IBM_MISC },
140 	{ /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
141 			HAS_MISC_REG | HAS_IBM_MISC },
142 	{ /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
143 	{ /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
144 	{ /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
145 			HAS_MISC_REG | HAS_IBM_MISC },
146 	{ /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
147 			HAS_MISC_REG | HAS_IBM_MISC },
148 	{ /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
149 	{ /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
150 	{ /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
151 	{ /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
152 	{ /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
153 			HAS_MISC_REG | HAS_IBM_MISC },
154 	{ /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
155 			HAS_MISC_REG | HAS_IBM_MISC },
156 	{ /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
157 	{ /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
158 	{ /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
159 	{ /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
160 			DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
161 	{ /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
162 	{ /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
163 	{ /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
164 	{ /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
165 	{ /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 },
166 	{ /* Qemu */ 0x0, 0x52, 0x54, 0x00, 0 },
167 	{ /* RTL8019AS */ 0x0, 0x0, 0x18, 0x5f, 0 }
168 };
169 
170 #define NR_INFO		(sizeof(hw_info)/sizeof(hw_info_t))
171 
172 #define PCNET_CMD	0x00
173 #define PCNET_DATAPORT	0x10	/* NatSemi-defined port window offset. */
174 #define PCNET_RESET	0x1f	/* Issue a read to reset, a write to clear. */
175 #define PCNET_MISC	0x18	/* For IBM CCAE and Socket EA cards */
176 
177 static void pcnet_reset_8390(u8* addr)
178 {
179 	int i, r;
180 
181 	n2k_outb(E8390_NODMA + E8390_PAGE0+E8390_STOP, E8390_CMD);
182 	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
183 	n2k_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, E8390_CMD);
184 	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
185 	n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD);
186 	PRINTK("cmd (at %lx) is %x\n", addr + E8390_CMD, n2k_inb(E8390_CMD));
187 	n2k_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD);
188 
189 	n2k_outb(n2k_inb(PCNET_RESET), PCNET_RESET);
190 
191 	for (i = 0; i < 100; i++) {
192 		if ((r = (n2k_inb(EN0_ISR) & ENISR_RESET)) != 0)
193 			break;
194 		PRINTK("got %x in reset\n", r);
195 		udelay(100);
196 	}
197 	n2k_outb(ENISR_RESET, EN0_ISR); /* Ack intr. */
198 
199 	if (i == 100)
200 		printf("pcnet_reset_8390() did not complete.\n");
201 } /* pcnet_reset_8390 */
202 
203 int get_prom(u8* mac_addr, u8* base_addr)
204 {
205 	u8 prom[32];
206 	int i, j;
207 	struct {
208 		u_char value, offset;
209 	} program_seq[] = {
210 		{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
211 		{0x48, EN0_DCFG},		/* Set byte-wide (0x48) access. */
212 		{0x00, EN0_RCNTLO},		/* Clear the count regs. */
213 		{0x00, EN0_RCNTHI},
214 		{0x00, EN0_IMR},		/* Mask completion irq. */
215 		{0xFF, EN0_ISR},
216 		{E8390_RXOFF, EN0_RXCR},	/* 0x20 Set to monitor */
217 		{E8390_TXOFF, EN0_TXCR},	/* 0x02 and loopback mode. */
218 		{32, EN0_RCNTLO},
219 		{0x00, EN0_RCNTHI},
220 		{0x00, EN0_RSARLO},		/* DMA starting at 0x0000. */
221 		{0x00, EN0_RSARHI},
222 		{E8390_RREAD+E8390_START, E8390_CMD},
223 	};
224 
225 	PRINTK ("trying to get MAC via prom reading\n");
226 
227 	pcnet_reset_8390 (base_addr);
228 
229 	mdelay (10);
230 
231 	for (i = 0; i < ARRAY_SIZE(program_seq); i++)
232 		n2k_outb (program_seq[i].value, program_seq[i].offset);
233 
234 	PRINTK ("PROM:");
235 	for (i = 0; i < 32; i++) {
236 		prom[i] = n2k_inb (PCNET_DATAPORT);
237 		PRINTK (" %02x", prom[i]);
238 	}
239 	PRINTK ("\n");
240 	for (i = 0; i < NR_INFO; i++) {
241 		if ((prom[0] == hw_info[i].a0) &&
242 			(prom[2] == hw_info[i].a1) &&
243 			(prom[4] == hw_info[i].a2)) {
244 			PRINTK ("matched board %d\n", i);
245 			break;
246 		}
247 	}
248 	if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
249 		PRINTK ("on exit i is %d/%ld\n", i, NR_INFO);
250 		PRINTK ("MAC address is ");
251 		for (j = 0; j < 6; j++) {
252 			mac_addr[j] = prom[j << 1];
253 			PRINTK ("%02x:", mac_addr[i]);
254 		}
255 		PRINTK ("\n");
256 		return (i < NR_INFO) ? i : 0;
257 	}
258 	return 0;
259 }
260