The MVGBE driver either gets the MAC from the environment, or invents one. This allows the driver to leave the existing address alone in case it is initialized before U-Boot starts.
Signed-off-by: Michael Spang mspang@csclub.uwaterloo.ca --- drivers/net/mvgbe.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c index c701f43..bab55b3 100644 --- a/drivers/net/mvgbe.c +++ b/drivers/net/mvgbe.c @@ -380,6 +380,22 @@ static void port_uc_addr_set(struct mvgbe_registers *regs, u8 * p_addr) }
/* + * port_uc_addr_get - This function gets the port unicast address. + */ +static void port_uc_addr_get(struct mvgbe_registers *regs, u8 * p_addr) +{ + u32 mac_l = MVGBE_REG_RD(regs->macal); + u32 mac_h = MVGBE_REG_RD(regs->macah); + + p_addr[0] = (mac_h >> 24); + p_addr[1] = (mac_h >> 16); + p_addr[2] = (mac_h >> 8); + p_addr[3] = (mac_h >> 0); + p_addr[4] = (mac_l >> 8); + p_addr[5] = (mac_l >> 0); +} + +/* * mvgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory. */ static void mvgbe_init_rx_desc_ring(struct mvgbe_device *dmvgbe) @@ -719,6 +735,9 @@ error1: }
while (!eth_getenv_enetaddr(s, dev->enetaddr)) { +#if defined(CONFIG_PRESERVE_LOCAL_MAC) + port_uc_addr_get(dmvgbe->regs, dmvgbe->dev.enetaddr); +#else /* Generate Private MAC addr if not set */ dev->enetaddr[0] = 0x02; dev->enetaddr[1] = 0x50; @@ -734,6 +753,7 @@ error1: dev->enetaddr[4] = get_random_hex(); dev->enetaddr[5] = get_random_hex(); #endif +#endif eth_setenv_enetaddr(s, dev->enetaddr); }