From 5b55dda6f40c46e93006b3c88f75550e0d3b3032 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 13 Jun 2006 23:50:15 +0100 Subject: [PATCH] [PATCH] DM9000 - check for MAC left in by bootloader The DM9000 driver does not deal with the case where there is no serial EEPROM to store the configuration, and the bootloader has placed an MAC address into the device already. If there is no valid MAC in the EEPROM, read the one already in the chip and check to see if that one is valid. Signed-off-by: Ben Dooks Signed-off-by: Jeff Garzik --- drivers/net/dm9000.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index 631e0d9..e6bdbd3 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -559,6 +559,13 @@ dm9000_probe(struct platform_device *pdev) for (i = 0; i < 6; i++) ndev->dev_addr[i] = db->srom[i]; + if (!is_valid_ether_addr(ndev->dev_addr)) { + /* try reading from mac */ + + for (i = 0; i < 6; i++) + ndev->dev_addr[i] = ior(db, i+DM9000_PAR); + } + if (!is_valid_ether_addr(ndev->dev_addr)) printk("%s: Invalid ethernet MAC address. Please " "set using ifconfig\n", ndev->name); -- 2.7.4