board: nrf: Fix nRF54LM20DK upstream Bluetooth Controller supported #93194
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Fix nRF54LM20DK upstream Bluetooth Controller supported. Relates to commit 3d1fa8b ("board: nrf: Add nRF54LM20DK board"). Signed-off-by: Vinayak Kariappa Chettimada <[email protected]>
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Pull Request Overview
This PR fixes Bluetooth Controller support for the nRF54LM20DK board by switching from the proprietary SoftDevice Controller (SDC) to the upstream Bluetooth Controller implementation. This change aligns the board configuration with upstream Zephyr Bluetooth standards.
- Switches from
bt_hci_sdc(SoftDevice Controller) tobt_hci_controller(upstream controller) in board configuration - Adds nRF54LM20DK support to HCI UART Bluetooth samples with appropriate test configurations
- Includes board-specific overlay files for UART and direction finding (DF) configurations
Reviewed Changes
Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| boards/nordic/nrf54lm20dk/nrf54lm20a_cpuapp_common.dtsi | Updates Bluetooth HCI reference from SDC to upstream controller |
| boards/nordic/nrf54lm20dk/nrf54lm20dk_nrf54lm20a_cpuapp.dts | Enables upstream Bluetooth controller and removes SDC configuration |
| samples/bluetooth/hci_uart/sample.yaml | Adds nRF54LM20DK platform support and test configuration |
| samples/bluetooth/hci_uart/boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay | Provides basic UART configuration for the board |
| samples/bluetooth/hci_uart/boards/nrf54lm20dk_nrf54lm20a_cpuapp_df.overlay | Adds direction finding support with antenna matrix configuration |
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| - nrf54lm20dk/nrf54lm20a/cpuapp | ||
| extra_args: | ||
| - EXTRA_CONF_FILE=overlay-all-bt_ll_sw_split.conf | ||
| - DTC_OVERLAY_FILE=./boards/nrf54lm20dk_nrf54lm20a_cpuapp_df.overlay |
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Wouldn't the /boards/nrf54lm20dk_nrf54lm20a_cpuapp_df.overlay be automatically applied when building?
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For a board revision / qualifier nrf54lm20dk/nrf54lm20a/cpuapp then boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay is picked.
I tried west build samples/bluetooth/hci_uart -b nrf54lm20dk/nrf54lm20a/cpuapp@df -- -DEXTRA_CONF_FILE=overlay-all-bt_ll_sw_split.conf does not build
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Ah, missed the _df part :)
Fix nRF54LM20DK upstream Bluetooth Controller supported.
Relates to commit 3d1fa8b ("board: nrf: Add nRF54LM20DK board").