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authorSylvain Rochet <sylvain.rochet@finsecur.com>2015-02-13 21:35:33 +0100
committerDavid S. Miller <davem@davemloft.net>2015-02-14 20:30:55 -0800
commit2b0ba96cea6066d2543066fa524120b384f3bd6b (patch)
treeb6f8ac9fb6c223c763e82887f19d02110aae6872 /net/core
parent3b4711757d7903ab6fa88a9e7ab8901b8227da60 (diff)
downloadlinux-2b0ba96cea6066d2543066fa524120b384f3bd6b.tar.bz2
net: phy: micrel: disable NAND-tree for KSZ8021, KSZ8031, KSZ8051, KSZ8081
NAND-tree is used to check wiring between MAC and PHY using NAND gates on the PHY side, hence the name. NAND-tree initial status is latched at reset by probing the IRQ pin. However some devices are sharing the PHY IRQ pin with other peripherals such as Atmel SAMA5D[34]x-EK boards when using the optional TM7000 display module, therefore they are switching the PHY in NAND-tree test mode depending on the current IRQ line status at reset. This patch ensure PHY is not in NAND-tree test mode for all Micrel PHYs using IRQ line as a NAND-tree toggle mode at reset. Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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