From: Francesco Valla Date: Sun, 5 Jan 2025 16:26:30 +0000 (+0100) Subject: arm64: dts: ti: k3-am625-beagleplay: Fix DP83TD510E reset time X-Git-Tag: v6.14-rc1~103^2~7^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=eb2008a8fcd243fcb7d646bdf1909349b3faec6d;p=thirdparty%2Flinux.git arm64: dts: ti: k3-am625-beagleplay: Fix DP83TD510E reset time The reset deassert time for the DP83TD510E is incorrectly set to 60000us, while the datasheet states that the minimum time required after an hard reset is 30us (while 60ms is the time required for the Power-On Reset after supply stabilization). The error probably arose from the two timings being indicated by the same symbol (T2). Lower the required time to 35us, aligning it to the value required for the PHY to complete the reset AND to be able to accept the RMII master clock. This saves ~60ms on boot if the MDIO driver is built-in. Signed-off-by: Francesco Valla Link: https://lore.kernel.org/r/20250105162630.243899-1-francesco@valla.it Signed-off-by: Nishanth Menon --- diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts index ee96f4f6deb00..75c80290b12ab 100644 --- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts +++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts @@ -610,7 +610,7 @@ reg = <1>; reset-gpios = <&main_gpio1 5 GPIO_ACTIVE_LOW>; reset-assert-us = <25>; - reset-deassert-us = <60000>; /* T2 */ + reset-deassert-us = <35>; }; };