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