From 6ed9269265e10669d62280a869652dbe26f43ecb Mon Sep 17 00:00:00 2001 From: Kurt Kanzenbach Date: Tue, 16 Mar 2021 09:06:44 +0100 Subject: [PATCH] ARM: dts: stm32: Add PTP clock to Ethernet controller Add the PTP clock to the Ethernet controller. Otherwise, the driver uses the main clock to derive the PTP frequency which is not necessarily the correct one. Tested with linuxptp on Olimex STMP1-OLinuXino-LIME2. Signed-off-by: Kurt Kanzenbach Signed-off-by: Alexandre Torgue --- arch/arm/boot/dts/stm32mp151.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index 31b04485cbd7..fb80d53e6be2 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1425,11 +1425,13 @@ "mac-clk-tx", "mac-clk-rx", "eth-ck", + "ptp_ref", "ethstp"; clocks = <&rcc ETHMAC>, <&rcc ETHTX>, <&rcc ETHRX>, <&rcc ETHCK_K>, + <&rcc ETHPTP_K>, <&rcc ETHSTP>; st,syscon = <&syscfg 0x4>; snps,mixed-burst;