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arm64: dts: st: add Hardware debug port (HDP) on stm32mp25

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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 <clement.legoffic@foss.st.com>
Link: https://lore.kernel.org/r/20250711-hdp-upstream-v7-6-faeecf7aaee1@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Clément Le Goffic
2025-09-15 17:51:02 +02:00
committed by Alexandre Torgue
parent 62ba9a86ea
commit f398bb6183
1 changed files with 7 additions and 0 deletions
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arch/arm64/boot/dts/st/stm32mp251.dtsi
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@@ -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>;