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authorMaxime Chevallier <maxime.chevallier@bootlin.com>2021-06-25 14:13:53 +0200
committerShawn Guo <shawnguo@kernel.org>2021-07-14 16:26:12 +0800
commitfd8e83884fdd7b5fc411f201a58d8d01890198a2 (patch)
tree7e6c07e82c92bc210201d45190264caed14d64da /drivers
parentfb1425b436bcf936065edbbe8d092465a53185b6 (diff)
ARM: dts: imx6qdl-sr-som: Increase the PHY reset duration to 10ms
The AR803x PHY used on this modules seems to require the reset line to be asserted for around 10ms in order to avoid rare cases where the PHY gets stuck in an incoherent state that prevents it to function correctly. The previous value of 2ms was found to be problematic on some setups, causing intermittent issues where the PHY would be unresponsive every once in a while on some sytems, with a low occurrence (it typically took around 30 consecutive reboots to encounter the issue). Bumping the delay to the 10ms makes the issue dissapear, with more than 2500 consecutive reboots performed without the issue showing-up. Fixes: 208d7baf8085 ("ARM: imx: initial SolidRun HummingBoard support") Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Tested-by: Hervé Codina <herve.codina@bootlin.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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