59 lines
1.7 KiB
Plaintext
59 lines
1.7 KiB
Plaintext
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Remoteproc System Resource Manager
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----------------------------------
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The remoteproc SRM (System Resource Manager) handles resources allocated
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to remote processors.
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This makes it possible for remote proc to reserve and initialize system
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resources for a peripheral assigned to a coprocessor.
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The devices are grouped in a core node
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Core
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====
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Required properties:
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- compatible: should be "rproc-srm-core"
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Dev
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===
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Required properties:
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- compatible: should be "rproc-srm-dev"
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Optional properties:
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- reg: register base address and length
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- clocks: clocks required by the coprocessor
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- clock-names: see clock-bindings.txt
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- pinctrl-0: pins configurations required by the coprocessor
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The SRM reserves the pins for the coprocessor, which prevents the local
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processor to use them.
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- pinctrl-names: must be "default".
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- x-supply: power supplies required by the coprocessor
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- interrupts: external interrupts configurations required by the coprocessor.
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This is optional since the configuration is done by the coprocessor.
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When defined, the SRM (over)writes the configuration which allows the
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interrupt controller to check for configuration conflicts.
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- interrupt-parent: see interrupts.txt
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- interrupt-names: see interrupts.txt
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Example:
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system_resources {
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compatible = "rproc-srm-core";
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mmc0: sdhci@09060000 {
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compatible = "rproc-srm-dev";
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reg = <0x09060000 0x100>;
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pinctrl-names = "default";
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pinctrl-0 = <&m4_pinctrl_mmc0>;
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clock-names = "mmc", "icn";
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clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
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<&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
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vdda-supply = <&vdda>;
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};
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button {
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compatible = "rproc-srm-dev";
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interrupt-parent = <&gpioa>;
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interrupts = <5 1>;
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interrupt-names = "gpio_key";
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};
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};
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