common/cmd_mii.c

   1 /*
   2  * (C) Copyright 2001
   3  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * MII Utilities
  26  */
  27
  28 #include <common.h>
  29 #include <command.h>
  30 #include <cmd_mii.h>
  31 #include <miiphy.h>
  32
  33 #if (CONFIG_COMMANDS & CFG_CMD_MII)
  34
  35 /*
  36  * Display values from last command.
  37  */
  38 uint last_op;
  39 uint last_addr;
  40 uint last_data;
  41 uint last_reg;
  42
  43 /*
  44  * MII read/write
  45  *
  46  * Syntax:
  47  *  mii read {addr} {reg}
  48  *  mii write {addr} {reg} {data}
  49  */
  50
  51 int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  52 {
  53         char            op;
  54         unsigned char   addr, reg;
  55         unsigned short  data;
  56         int             rcode = 0;
  57
  58 #ifdef CONFIG_8xx
  59         mii_init ();
  60 #endif
  61
  62         /*
  63          * We use the last specified parameters, unless new ones are
  64          * entered.
  65          */
  66         op   = last_op;
  67         addr = last_addr;
  68         data = last_data;
  69         reg  = last_reg;
  70
  71         if ((flag & CMD_FLAG_REPEAT) == 0) {
  72                 op = argv[1][0];
  73                 if (argc >= 3)
  74                         addr = simple_strtoul (argv[2], NULL, 16);
  75                 if (argc >= 4)
  76                         reg  = simple_strtoul (argv[3], NULL, 16);
  77                 if (argc >= 5)
  78                         data = simple_strtoul (argv[4], NULL, 16);
  79         }
  80
  81         /*
  82          * check info/read/write.
  83          */
  84         if (op == 'i') {
  85                 int j;
  86                 unsigned int oui;
  87                 unsigned char model;
  88                 unsigned char rev;
  89
  90                 /*
  91                  * Look for any and all PHYs.  Valid addresses are 0..31.
  92                  */
  93                 for (j = 0; j < 32; j++) {
  94                         if (miiphy_info (j, &oui, &model, &rev) == 0) {
  95                                 printf ("PHY 0x%02X: "
  96                                         "OUI = 0x%04X, "
  97                                         "Model = 0x%02X, "
  98                                         "Rev = 0x%02X, "
  99                                         "%3dbaseT, %s\n",
 100                                         j, oui, model, rev,
 101                                         miiphy_speed (j) == _100BASET ? 100 : 10,
 102                                         miiphy_duplex (j) == FULL ? "FDX" : "HDX");
 103                         }
 104                 }
 105         } else if (op == 'r') {
 106                 if (miiphy_read (addr, reg, &data) != 0) {
 107                         printf ("Error reading from the PHY\n");
 108                         rcode = 1;
 109                 }
 110                 printf ("%04X\n", data & 0x0000FFFF);
 111         } else if (op == 'w') {
 112                 if (miiphy_write (addr, reg, data) != 0) {
 113                         printf ("Error writing to the PHY\n");
 114                         rcode = 1;
 115                 }
 116         } else {
 117                 printf ("Usage:\n%s\n", cmdtp->usage);
 118                 return 1;
 119         }
 120
 121         /*
 122          * Save the parameters for repeats.
 123          */
 124         last_op = op;
 125         last_addr = addr;
 126         last_data = data;
 127
 128         return rcode;
 129 }
 130
 131 #endif /* CFG_CMD_MII */