142 lines
3.1 KiB
C
142 lines
3.1 KiB
C
/*
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* (C) Copyright 2001
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* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* MII Utilities
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*/
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#include <common.h>
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#include <command.h>
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#include <miiphy.h>
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#if (CONFIG_COMMANDS & CFG_CMD_MII)
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/*
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* Display values from last command.
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*/
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uint last_op;
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uint last_addr;
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uint last_data;
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uint last_reg;
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/*
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* MII read/write
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*
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* Syntax:
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* mii read {addr} {reg}
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* mii write {addr} {reg} {data}
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*/
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int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
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{
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char op;
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unsigned char addr, reg;
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unsigned short data;
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int rcode = 0;
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#ifdef CONFIG_8xx
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mii_init ();
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#endif
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/*
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* We use the last specified parameters, unless new ones are
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* entered.
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*/
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op = last_op;
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addr = last_addr;
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data = last_data;
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reg = last_reg;
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if ((flag & CMD_FLAG_REPEAT) == 0) {
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op = argv[1][0];
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if (argc >= 3)
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addr = simple_strtoul (argv[2], NULL, 16);
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if (argc >= 4)
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reg = simple_strtoul (argv[3], NULL, 16);
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if (argc >= 5)
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data = simple_strtoul (argv[4], NULL, 16);
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}
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/*
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* check info/read/write.
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*/
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if (op == 'i') {
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int j;
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unsigned int oui;
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unsigned char model;
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unsigned char rev;
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/*
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* Look for any and all PHYs. Valid addresses are 0..31.
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*/
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for (j = 0; j < 32; j++) {
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if (miiphy_info (j, &oui, &model, &rev) == 0) {
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printf ("PHY 0x%02X: "
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"OUI = 0x%04X, "
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"Model = 0x%02X, "
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"Rev = 0x%02X, "
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"%3dbaseT, %s\n",
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j, oui, model, rev,
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miiphy_speed (j) == _100BASET ? 100 : 10,
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miiphy_duplex (j) == FULL ? "FDX" : "HDX");
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}
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}
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} else if (op == 'r') {
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if (miiphy_read (addr, reg, &data) != 0) {
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printf ("Error reading from the PHY\n");
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rcode = 1;
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}
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printf ("%04X\n", data & 0x0000FFFF);
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} else if (op == 'w') {
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if (miiphy_write (addr, reg, data) != 0) {
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printf ("Error writing to the PHY\n");
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rcode = 1;
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}
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} else {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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/*
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* Save the parameters for repeats.
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*/
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last_op = op;
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last_addr = addr;
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last_data = data;
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return rcode;
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}
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/***************************************************/
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U_BOOT_CMD(
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mii, 5, 1, do_mii,
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"mii - MII utility commands\n",
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"info <addr> - display MII PHY info\n"
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"mii read <addr> <reg> - read MII PHY <addr> register <reg>\n"
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"mii write <addr> <reg> <data> - write MII PHY <addr> register <reg>\n"
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);
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#endif /* CFG_CMD_MII */
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