34 lines
1.5 KiB
Plaintext
34 lines
1.5 KiB
Plaintext
Qualcomm Technologies Inc Blackghost(BG) PIL driver:
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Blackghost(BG) PIL driver provide interface to load and boot Blackghost(BG)
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SOC. Blackghost(BG) SOC is an external SOC which communicate to MSM via
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SPI. The PIL driver loads firmware into memory and invoke secure app via
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qseecom to transfer and handshake the boot process. Once Blackghost(BG) SOC
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is booted it raises ready interrupt which is handled by BG PIL driver, and
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this event is informed to other MSM drivers, other remote subsystem via
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notifier framework. The PIL driver also handles interrupt for the BG SOC
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crash upon arrival of which it reset and initiates ramdump collection for BG
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SOC.
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Required properties:
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- compatible: Must be "qcom,pil-blackghost"
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- qcom,firmware-name: Base name of the firmware image.
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- qcom,bg2ap-status-gpio: GPIO used by the blackghost to indicate status to the apps.
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- qcom,bg2ap-errfatal-gpio: GPIO used by the blackghost to indicate software error to the apps.
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- qcom,ap2bg-status-gpio: GPIO used by the apps to indicate its status to blackghost.
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- qcom,ap2bg-errfatal-gpio: GPIO used by the apps to indicate blackghost about apps reset.
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Example:
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qcom,blackghost {
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compatible = "qcom,pil-blackghost";
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qcom,firmware-name = "bgelf";
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/* GPIO inputs from blackghost */
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qcom,bg2ap-status-gpio = <&msm_gpio 97 0>;
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qcom,bg2ap-errfatal-gpio = <&msm_gpio 95 0>;
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/* GPIO output to blackghost */
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qcom,ap2bg-status-gpio = <&msm_gpio 17 0>;
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qcom,ap2bg-errfatal-gpio = <&msm_gpio 23 0>;
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};
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