From: Clément Le Goffic Date: Fri, 11 Jul 2025 07:41:24 +0000 (+0200) Subject: arm64: dts: st: add Hardware debug port (HDP) on stm32mp25 X-Git-Tag: v6.18-rc1~147^2~18^2~21 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f398bb61833500bceb81c2445f2a9e6e8cbc3551;p=thirdparty%2Flinux.git arm64: dts: st: add Hardware debug port (HDP) on stm32mp25 Add the hdp devicetree node for stm32mp25 SoC family Keep the node disabled as HDP needs the pinctrl SoC configuration to be able to output its mux output signal outside of the SoC, on the SoC pad. This configuration is provided in the board dtsi file through 'pinctrl-*' properties as well as HDP mux configuration. Thus, if needed, HDP should be enabled in board dtsi file. Signed-off-by: Clément Le Goffic Link: https://lore.kernel.org/r/20250711-hdp-upstream-v7-6-faeecf7aaee1@foss.st.com Signed-off-by: Alexandre Torgue --- diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi index 303abf915b8e4..9372bc3c3a4b5 100644 --- a/arch/arm64/boot/dts/st/stm32mp251.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi @@ -1672,6 +1672,13 @@ }; }; + hdp: pinctrl@44090000 { + compatible = "st,stm32mp251-hdp"; + reg = <0x44090000 0x400>; + clocks = <&rcc CK_BUS_HDP>; + status = "disabled"; + }; + rcc: clock-controller@44200000 { compatible = "st,stm32mp25-rcc"; reg = <0x44200000 0x10000>;