arm: dts: stm32: introduce the debug bus for stm32mp1x platforms

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Some peripherals cannot be probed if a debug configuration is not set
in the BSEC.
Introduce a debug bus that will check the debug subsystem accessibility
before probing these peripheral drivers.

Add Coresight peripheral nodes under this bus and add the appropriate
access-controllers property to the HDP node.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Link: https://lore.kernel.org/r/20260226-debug_bus-v6-7-5d794697798d@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

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Gatien Chevallier 2026-02-26 11:30:22 +01:00 • committed by Alexandre Torgue

parent bb3fa3f8a4

commit 672d0510cc

3 changed files with 357 additions and 0 deletions

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117

arch/arm/boot/dts/st/stm32mp131.dtsi

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172

arch/arm/boot/dts/st/stm32mp151.dtsi

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arch/arm/boot/dts/st/stm32mp153.dtsi

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