drivers/net/ne2000.c

   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 }