From 0d01520200f3bb0686567134bc2e7bb940009559 Mon Sep 17 00:00:00 2001
From: Heiko Schocher <hs@denx.de>
Date: Thu, 6 Jan 2011 10:25:26 +0100
Subject: [PATCH] keymile boards: add CONFIG_PIGGY_MAC_ADRESS_OFFSET
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>
---
board/keymile/common/common.c | 13 +++++++++++++
board/keymile/common/common.h | 4 ++++
2 files changed, 17 insertions(+)
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 6600e08711..8392a6413e 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 8497ab63d1..e32de8d9fa 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);
--
2.39.5