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Add support for reading and writing mac addresses to or from ID EEPROM.

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Added code for reading and writing Mac addresses to/from ID EEPROM(0x57).
With attached patch, we can use command "mac/mac read/mac save/"
to read and write EEPROM under u-boot prompt.

U-boot will calculate the checksum of EEPROM while bootup,
if it is right, then u-boot will check whether the mac address
of eTSEC0/1/2/3 is availalbe (non-zero).

If there is mac address availabe in EEPROM, u-boot will use it,
otherewise, u-boot will use the mac address defined in
MPC8641HPCN.h. This matches the requirement to set unique mac address
for each TSEC port.

Signed-off-by: Haiying Wang <haiying.wang@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Haiying Wang
2006-07-12 10:48:05 -04:00
committed by Jon Loeliger
parent fcb28e7634
commit bea3f28d28
7 changed files with 321 additions and 2 deletions
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66
common/cmd_mac.c Normal file
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@@ -0,0 +1,66 @@
/*
* Copyright 2006 Freescale Semiconductor
* York Sun (yorksun@freescale.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
*/
#include <common.h>
#include <command.h>
#ifdef CFG_ID_EEPROM
extern int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
U_BOOT_CMD(
mac, 3, 1, do_mac,
"mac - display and program the system ID and MAC addresses in EEPROM\n",
"[read|save|id|num|errata|date|ports|0|1|2|3|4|5|6|7]\n"
"read\n"
" - show content of mac\n"
"mac save\n"
" - save to the EEPROM\n"
"mac id\n"
" - program system id\n"
"mac num\n"
" - program system serial number\n"
"mac errata\n"
" - program errata data\n"
"mac date\n"
" - program data date\n"
"mac ports\n"
" - program the number of ports\n"
"mac 0\n"
" - program the MAC address for port 0\n"
"mac 1\n"
" - program the MAC address for port 1\n"
"mac 2\n"
" - program the MAC address for port 2\n"
"mac 3\n"
" - program the MAC address for port 3\n"
"mac 4\n"
" - program the MAC address for port 4\n"
"mac 5\n"
" - program the MAC address for port 5\n"
"mac 6\n"
" - program the MAC address for port 6\n"
"mac 7\n"
" - program the MAC address for port 7\n"
);
#endif /* CFG_ID_EEPROM */