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 --- Changes for v2: - fix checkpatch.pl errors and warnings Changes for v3 - rebased - use %pM in sprintf for mac address handling as Wolfgang Denk suggested.
board/keymile/common/common.c | 13 +++++++++++++ board/keymile/common/common.h | 4 ++++ 2 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 6600e08..8392a64 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -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) + diff --git a/board/keymile/common/common.h b/board/keymile/common/common.h index 8497ab6..e32de8d 100644 --- a/board/keymile/common/common.h +++ b/board/keymile/common/common.h @@ -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);