Signed-off-by: Christian Riesch christian.riesch@omicron.at --- board/omicron/calimain/calimain.c | 31 ++++++++++++++++++++++++++++++- include/configs/calimain.h | 2 ++ 2 files changed, 32 insertions(+), 1 deletion(-)
diff --git a/board/omicron/calimain/calimain.c b/board/omicron/calimain/calimain.c index 1060a1f..80e3893 100644 --- a/board/omicron/calimain/calimain.c +++ b/board/omicron/calimain/calimain.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 OMICRON electronics GmbH + * Copyright (C) 2011-2013 OMICRON electronics GmbH * * Based on da850evm.c. Original Copyrights follow: * @@ -136,6 +136,35 @@ int board_init(void) return 0; }
+/* seed random number generator with uninitialized SRAM content */ +static void srand_sram(void) +{ + int *p; + int seed = 0; + + for (p = (int *) 0x80000000; p < (int *) 0x8001ffff; p++) + seed ^= *p; + + srand(seed); +} + +int board_late_init(void) +{ + uchar enetaddr[6]; + + if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { + srand_sram(); + eth_random_enetaddr(enetaddr); + if (eth_setenv_enetaddr("ethaddr", enetaddr)) { + printf("Failed to set random ethernet address\n"); + } else { + printf("Setting random ethernet address %pM.\n", + enetaddr); + } + } + return 0; +} + #ifdef CONFIG_DRIVER_TI_EMAC /* * Initializes on-board ethernet controllers. diff --git a/include/configs/calimain.h b/include/configs/calimain.h index 5c2b35d..8cea0d9 100644 --- a/include/configs/calimain.h +++ b/include/configs/calimain.h @@ -30,6 +30,7 @@ #define CONFIG_DRIVER_TI_EMAC #define MACH_TYPE_CALIMAIN 3528 #define CONFIG_MACH_TYPE MACH_TYPE_CALIMAIN +#define CONFIG_BOARD_LATE_INIT
/* * SoC Configuration @@ -202,6 +203,7 @@ #define CONFIG_BOOTP_DNS2 #define CONFIG_BOOTP_SEND_HOSTNAME #define CONFIG_NET_RETRY_COUNT 10 +#define CONFIG_RANDOM_MACADDR #endif
/*