]>
git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/net/ax88796.c
2 * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 static void ax88796_bitset(u32 bit
)
42 static u8
ax88796_bitget(void)
57 * Send COMMAND to EEPROM
59 static void ax88796_eep_cmd(u8 cmd
)
61 ax88796_bitset(BIT_DUMMY
);
97 static void ax88796_eep_setaddr(u16 addr
)
101 for( i
= 7 ; i
>= 0 ; i
-- )
102 ax88796_bitset(addr
& (1 << i
));
106 * Get data from EEPROM
108 static u16
ax88796_eep_getdata(void)
113 ax88796_bitget(); /* DUMMY */
114 for( i
= 0 ; i
< 16 ; i
++ ){
116 data
|= ax88796_bitget();
121 static void ax88796_mac_read(u8
*buff
)
127 for( i
= 0 ; i
< 3; i
++ )
133 ax88796_eep_cmd(MAC_EEP_READ
);
135 ax88796_eep_setaddr(addr
++);
137 data
= ax88796_eep_getdata();
138 *buff
++ = (uchar
)(data
& 0xff);
139 *buff
++ = (uchar
)((data
>> 8) & 0xff);
146 int get_prom(u8
* mac_addr
, u8
* base_addr
)
151 ax88796_mac_read(prom
);
152 for (i
= 0; i
< 6; i
++){
153 mac_addr
[i
] = prom
[i
];