[PATCH 1/6] dt-bindings: remoteproc: document M0 Bluetooth Subsystem secure PIL
From: George Moussalem via B4 Relay <devnull+george.moussalem.outlook.com@kernel.org>
Date: 2026-06-25 14:10:31
Also in:
b4-sent, linux-arm-msm, linux-block, linux-bluetooth, linux-devicetree, linux-mmc, linux-remoteproc, linux-wireless, lkml
Subsystem:
arm/qualcomm mailing list, open firmware and flattened device tree bindings, remote processor (remoteproc) subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Mathieu Poirier, Linus Torvalds
From: George Moussalem <redacted> Document the M0 Bluetooth Subsystem remote processor core found in the Qualcomm IPQ5018 SoC. Firmware loaded is authenticated via TrustZone. The firmware running on the M0 core provides bluetooth functionality. Signed-off-by: George Moussalem <redacted> --- .../bindings/remoteproc/qcom,m0-btss-pil.yaml | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+)
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,m0-btss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,m0-btss-pil.yaml
new file mode 100644
index 000000000000..397bb6815d71
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,m0-btss-pil.yaml@@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/qcom,m0-btss-pil.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm M0 BTSS Peripheral Image Loader + +maintainers: + - George Moussalem <george.moussalem@outlook.com> + +description: + Qualcomm M0 BTSS Peripheral Secure Image Loader loads firmware and powers up + the M0 BTSS remote processor core on the Qualcomm IPQ5018 SoC. + +properties: + compatible: + enum: + - qcom,ipq5018-btss-pil + + firmware-name: + maxItems: 1 + description: Firmware name for the M0 Bluetooth Subsystem core + + clocks: + items: + - description: M0 BTSS low power oscillator clock + + clock-names: + items: + - const: btss_lpo_clk + + memory-region: + items: + - description: M0 BTSS reserved memory carveout + + resets: + items: + - description: M0 BTSS reset + + reset-names: + items: + - const: btss_reset + +required: + - compatible + - firmware-name + - clocks + - clock-names + - resets + - reset-names + - memory-region + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,gcc-ipq5018.h> + #include <dt-bindings/reset/qcom,gcc-ipq5018.h> + + remoteproc { + compatible = "qcom,ipq5018-btss-pil"; + + firmware-name = "qca/bt_fw_patch.mbn"; + + clocks = <&gcc GCC_BTSS_LPO_CLK>; + clock-names = "btss_lpo_clk"; + resets = <&gcc GCC_BTSS_BCR>; + reset-names = "btss_reset"; + + memory-region = <&btss_region>; + };
--
2.53.0