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Date: Sat, 14 Feb 2015 20:31:39 -0800 (PST) From: David Miller <davem@...emloft.net> To: sylvain.rochet@...secur.com Cc: f.fainelli@...il.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, nicolas.ferre@...el.com, alexandre.belloni@...e-electrons.com, voice.shen@...el.com, josh.wu@...el.com, ludovic.desroches@...el.com, boris.brezillon@...e-electrons.com Subject: Re: [PATCH] net: phy: micrel: disable NAND-tree for KSZ8021,KSZ8031,KSZ8051,KSZ8081 From: Sylvain Rochet <sylvain.rochet@...secur.com> Date: Fri, 13 Feb 2015 21:35:33 +0100 > 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@...secur.com> > Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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