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sh_eth: use random MAC address if no valid one supplied

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On Renesas R-Car based development boards, although a MAC address is printed on
all the Ethernet port labels, U-Boot  doesn't write a valid MAC address  to the
Ether MAHR/MALR registers (there's no storage provided for the Ether MAC address
either), so we have to resort to using a random MAC address...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sergei Shtylyov 2013-04-29 09:49:42 +00:00 committed by David S. Miller
parent 3b54912f9c
commit ff6e722870
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/renesas/sh_eth.c
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@ -2735,6 +2735,11 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
/* read and set MAC address */
read_mac_address(ndev, pd->mac_addr);
if (!is_valid_ether_addr(ndev->dev_addr)) {
dev_warn(&pdev->dev,
"no valid MAC address supplied, using a random one.\n");
eth_hw_addr_random(ndev);
}
/* ioremap the TSU registers */
if (mdp->cd->tsu) {