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
pcnet_reset_8390(u8 * addr)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
get_prom(u8 * mac_addr,u8 * base_addr)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