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arcnet: com20020-pci: handle backplane mode depending on card type 

We read the backplane mode of each subcard from bits 2 and 3 of the misc
register.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Michael Grzeschik 2017-06-28 18:32:20 +02:00 committed by David S. Miller
parent ede07a1fc7
commit 52ab12e4f9
1 changed files with 2 additions and 0 deletions
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2
drivers/net/arcnet/com20020-pci.c
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@ -199,6 +199,8 @@ static int com20020pci_probe(struct pci_dev *pdev,
lp->timeout = timeout;
lp->hw.owner = THIS_MODULE;
lp->backplane = (inb(priv->misc) >> (2 + i)) & 0x1;
/* Get the dev_id from the PLX rotary coder */
if (!strncmp(ci->name, "EAE PLX-PCI MA1", 15))
dev->dev_id = 0xc;