net: lpc_eth: Fix crash on ip link up

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When a link is already up, the following sequence makes the kernel
block completely:

  ip link set dev eth0 down
  ip link set dev eth0 up

This is because on suspended phy, the following lines

  __lpc_eth_reset(pldat);
  __lpc_eth_init(pldat);

make the LPC ethernet core block (see LPC32x0 manual). The PHY needs to be
(re-)activated low-level first.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Roland Stigge 2014-09-01 13:46:46 +02:00 • committed by David S. Miller

parent 0486a063b1

commit aff88a0695

1 changed files with 3 additions and 0 deletions

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3

drivers/net/ethernet/nxp/lpc_eth.c

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