net: bcmgenet: power up and down integrated GPHY when unused

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Power up the GPHY while we are bringing-up the network interface, and
conversely, upon bring down, power the GPHY down. In order to avoid
creating hardware hazards, make sure that the GPHY gets powered on
during bcmgenet_open() prior to the UniMAC being reset as the UniMAC may
start creating activity towards the GPHY if we reverse the steps.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Florian Fainelli 2015-03-23 15:09:56 -07:00 • committed by David S. Miller

parent a9d608c153

commit a642c4f790

3 changed files with 10 additions and 4 deletions

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11

drivers/net/ethernet/broadcom/genet/bcmgenet.c

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1

drivers/net/ethernet/broadcom/genet/bcmgenet.h

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2

drivers/net/ethernet/broadcom/genet/bcmmii.c

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