net: dsa: mv88e6xxx: factorize GLOBAL_CONTROL setup

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All switch models configure the GLOBAL_CONTROL register with slightly
differences.

Discarding packets with excessive collisions
(GLOBAL_CONTROL_DISCARD_EXCESS) is specific to 6352 and similar
switches, and setting a maximum frame size
(GLOBAL_CONTROL_MAX_FRAME_1632) is specific to 6185 and similar
switches.

As we are centralizing the chips setup, skip these settings and don't
discard any frames yet, until we found out that such discarding by the
hardware is necessary.

Assume a common setup to enable the PHY Polling Unit if present, don't
discard any packets, and mask all interrupt sources.

Tested on 88E6352 and 88E6185.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Vivien Didelot 2016-05-09 13:22:51 -04:00 • committed by David S. Miller

parent 08a012619a

commit 119477bd98

5 changed files with 13 additions and 37 deletions

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8

drivers/net/dsa/mv88e6123.c

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drivers/net/dsa/mv88e6131.c

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drivers/net/dsa/mv88e6171.c

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drivers/net/dsa/mv88e6352.c

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drivers/net/dsa/mv88e6xxx.c

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