Bogdan Mirea 7d2901f809 arm64: dts: renesas: ulcb: Remove renesas, no-ether-link property ... The present change is a bug fix for AVB link iteratively up/down. Steps to reproduce: - start AVB TX stream (Using aplay via MSE), - disconnect+reconnect the eth cable, - after a reconnection the eth connection goes iteratively up/down without user interaction, - this may heal after some seconds or even stay for minutes. As the documentation specifies, the "renesas,no-ether-link" option should be used when a board does not provide a proper AVB_LINK signal. There is no need for this option enabled on RCAR H3/M3 Salvator-X/XS and ULCB starter kits since the AVB_LINK is correctly handled by HW. Choosing to keep or remove the "renesas,no-ether-link" option will have impact on the code flow in the following ways: - keeping this option enabled may lead to unexpected behavior since the RX & TX are enabled/disabled directly from adjust_link function without any HW interrogation, - removing this option, the RX & TX will only be enabled/disabled after HW interrogation. The HW check is made through the LMON pin in PSR register which specifies AVB_LINK signal value (0 - at low level; 1 - at high level). In conclusion, the present change is also a safety improvement because it removes the "renesas,no-ether-link" option leading to a proper way of detecting the link state based on HW interrogation and not on software heuristic. Fixes: dc36965a89 ("arm64: dts: r8a7796: salvator-x: Enable EthernetAVB") Fixes: 6fa501c549 ("arm64: dts: r8a7795: enable EthernetAVB on Salvator-X") Signed-off-by: Bogdan Mirea <Bogdan-Stefan_Mirea@mentor.com> Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>		2017-12-22 09:39:17 +01:00
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dts	arm64: dts: renesas: ulcb: Remove renesas, no-ether-link property	2017-12-22 09:39:17 +01:00
.gitignore
install.sh
Makefile	arm64: localise Image objcopy flags	2016-07-19 15:30:23 +01:00