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keymile boards: add CONFIG_PIGGY_MAC_ADRESS_OFFSET

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Normaly the PIGGY_MAC_ADRESS can be read directly from the
IVM on keymile boards. On mgcoge3 it differs. Because there
are two piggy boards deployed the second MAC adress must be
calculated with the IVM mac adress and an offset. This patch
allows to set such a offset in the board config.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2011-01-06 10:25:26 +01:00 committed by Wolfgang Denk
parent 731b968044
commit 0d01520200
2 changed files with 17 additions and 0 deletions
board/keymile/common
common.ccommon.h

13
board/keymile/common/common.c
View File

@ -228,8 +228,21 @@ static int ivm_analyze_block2(unsigned char *buf, int len)
/* IVM_MacAddress */
sprintf((char *)valbuf, "%pM", buf);
ivm_set_value("IVM_MacAddress", (char *)valbuf);
/* if an offset is defined, add it */
#if defined(CONFIG_PIGGY_MAC_ADRESS_OFFSET)
if (CONFIG_PIGGY_MAC_ADRESS_OFFSET > 0) {
unsigned long val = (buf[4] << 16) + (buf[5] << 8) + buf[6];
val += CONFIG_PIGGY_MAC_ADRESS_OFFSET;
buf[4] = (val >> 16) & 0xff;
buf[5] = (val >> 8) & 0xff;
buf[6] = val & 0xff;
sprintf((char *)valbuf, "%pM", buf);
}
#endif
if (getenv("ethaddr") == NULL)
setenv((char *)"ethaddr", (char *)valbuf);
/* IVM_MacCount */
count = (buf[10] << 24) +
(buf[11] << 16) +

4
board/keymile/common/common.h
View File

@ -39,6 +39,10 @@ struct km_bec_fpga {
unsigned char pgy_eth;
};
#if !defined(CONFIG_PIGGY_MAC_ADRESS_OFFSET)
#define CONFIG_PIGGY_MAC_ADRESS_OFFSET 0
#endif
int ethernet_present(void);
int ivm_read_eeprom(void);