soc: rpi_pico: Set the default SYS_CLOCK_HW_CYCLES_PER_SEC from dt

[soburi]

Avoid the individual CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC for each board instead to referencing the dt value.

Note: CI has a problem. We need to address #90896 first.

[Copilot]

Pull Request Overview

This PR updates how SYS_CLOCK_HW_CYCLES_PER_SEC is defined by switching from board-specific hardcoded values to a devicetree-based default. The changes add new devicetree variable assignments and configuration settings for Raspberry Pi Pico SOCs while removing the static definitions from various board defconfig files.

Reviewed Changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
soc/raspberrypi/rpi_pico/rp2350/Kconfig.defconfig	Adds dt-based default for SYS_CLOCK_HW_CYCLES_PER_SEC using the dt_nodelabel_path and dt_node_int_prop_int macros.
soc/raspberrypi/rpi_pico/rp2040/Kconfig.defconfig	Similar update to use the devicetree value for SYS_CLOCK_HW_CYCLES_PER_SEC.
boards/wiznet/w5500_evb_pico2/Kconfig.defconfig	Removes the hardcoded SYS_CLOCK_HW_CYCLES_PER_SEC value.
boards/wiznet/w5500_evb_pico/w5500_evb_pico_defconfig	Removes static clock frequency definition to rely on the new dt-based approach.
boards/waveshare/rp2040_zero/rp2040_zero_defconfig	Deletes the static SYS_CLOCK_HW_CYCLES_PER_SEC setting.
boards/sparkfun/pro_micro_rp2040/sparkfun_pro_micro_rp2040_defconfig	Removes the board-specific clock definition.
boards/seeed/xiao_rp2040/xiao_rp2040_defconfig	Eliminates the static SYS_CLOCK_HW_CYCLES_PER_SEC.
boards/raspberrypi/rpi_pico2/rpi_pico2_rp2350a_m33_defconfig	Hardcoded clock value is removed in favor of using the devicetree source.
boards/raspberrypi/rpi_pico/rpi_pico_rp2040_w_defconfig	Removes the static configuration for SYS_CLOCK_HW_CYCLES_PER_SEC.
boards/raspberrypi/rpi_pico/rpi_pico_defconfig	Eliminates the board-specific clock frequency definition.
boards/pimoroni/pico_plus2/pico_plus2_rp2350b_m33_defconfig	Removes the explicit clock value setting.
boards/kws/pico_spe/pico_spe_defconfig	Deletes the hardcoded SYS_CLOCK_HW_CYCLES_PER_SEC line.
boards/kws/pico2_spe/pico2_spe_rp2350a_m33_defconfig	Removes the static definition to follow the dt-based approach.
boards/adafruit/qt_py_rp2040/adafruit_qt_py_rp2040_defconfig	Deletes the board-specific clock frequency setting.
boards/adafruit/macropad_rp2040/adafruit_macropad_rp2040_defconfig	Removes the hardcoded clock value to utilize the global devicetree default.
boards/adafruit/kb2040/adafruit_kb2040_defconfig	Eliminates the static clock frequency configuration.

Comments suppressed due to low confidence (2)

boards/wiznet/w5500_evb_pico2/Kconfig.defconfig:13

• Adding a clarifying comment in the defconfig to note that the SYS_CLOCK_HW_CYCLES_PER_SEC value is now sourced from the devicetree could help future maintainers.

-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC

boards/adafruit/qt_py_rp2040/adafruit_qt_py_rp2040_defconfig:1

• Consider adding documentation in this defconfig to mention that the clock frequency is now managed through the devicetree instead of a static value.

-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000

[ajf58]

LGTM.

[soburi]

CI was failed, but it is not related this PR.
#91036

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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