LXR uboot/drivers/net/ne2000.c

   1/*
   2Ported to U-Boot by Christian Pellegrin <chri@ascensit.com>
   3
   4Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and
   5eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world
   6are GPL, so this is, of course, GPL.
   7
   8==========================================================================
   9
  10dev/if_dp83902a.c
  11
  12Ethernet device driver for NS DP83902a ethernet controller
  13
  14==========================================================================
  15####ECOSGPLCOPYRIGHTBEGIN####
  16-------------------------------------------
  17This file is part of eCos, the Embedded Configurable Operating System.
  18Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
  19
  20eCos is free software; you can redistribute it and/or modify it under
  21the terms of the GNU General Public License as published by the Free
  22Software Foundation; either version 2 or (at your option) any later version.
  23
  24eCos is distributed in the hope that it will be useful, but WITHOUT ANY
  25WARRANTY; without even the implied warranty of MERCHANTABILITY or
  26FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  27for more details.
  28
  29You should have received a copy of the GNU General Public License along
  30with eCos; if not, write to the Free Software Foundation, Inc.,
  3159 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  32
  33As a special exception, if other files instantiate templates or use macros
  34or inline functions from this file, or you compile this file and link it
  35with other works to produce a work based on this file, this file does not
  36by itself cause the resulting work to be covered by the GNU General Public
  37License. However the source code for this file must still be made available
  38in accordance with section (3) of the GNU General Public License.
  39
  40This exception does not invalidate any other reasons why a work based on
  41this file might be covered by the GNU General Public License.
  42
  43Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
  44at http://sources.redhat.com/ecos/ecos-license/
  45-------------------------------------------
  46####ECOSGPLCOPYRIGHTEND####
  47####BSDCOPYRIGHTBEGIN####
  48
  49-------------------------------------------
  50
  51Portions of this software may have been derived from OpenBSD or other sources,
  52and are covered by the appropriate copyright disclaimers included herein.
  53
  54-------------------------------------------
  55
  56####BSDCOPYRIGHTEND####
  57==========================================================================
  58#####DESCRIPTIONBEGIN####
  59
  60Author(s):      gthomas
  61Contributors:   gthomas, jskov, rsandifo
  62Date:           2001-06-13
  63Purpose:
  64Description:
  65
  66FIXME:          Will fail if pinged with large packets (1520 bytes)
  67Add promisc config
  68Add 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/*
  85typedef 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
 106static 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
 177static 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
 203int 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