51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
Texas Instruments' K3 Remote processor driver
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=============================================
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In K3 generation Socs, loading an image on any processing entity
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cannot be done directly from U-Boot. In order to load an image,
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remoteproc driver should communicate to SYSFW with a specific sequence.
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Also enable the timer required for this remotecore.
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Required properties:
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--------------------
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- compatible: Shall be: "ti,am654-rproc"
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- reg: base address of the remoteproc timer.
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- power-domains: Should contain two sets of entries:
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First set corresponds to pm domain of the
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remotecore timer. Seconf entry corresponds to the
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remoteproc to start.
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This property is as per the binding,
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doc/device-tree-bindings/power/ti,sci-pm-domain.txt
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- resets: Should contain a phandle to a reset controller node
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and an args specifier containing the remote code
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device id and reset mask value. This is as per the
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doc/device-tree-bindings/reset/ti,sci-reset.txt
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- ti,sci: Phandle to TI-SCI compatible System controller node.
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- ti,sci-proc-id: Processor id as identified by TISCI
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Optional properties:
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--------------------
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- assigned-clocks: Should contain a phandle to clock node and an args
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specifier containing the remote core device id and
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the clock id within the remote core. This is as per
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doc/device-tree-bindings/clock/ti,sci-clk.txt
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- assigned-clock-rates: One entry for each entry of assigned-clocks. This is
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the frequency at which the corresponding clock needs
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to be assigned.
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- ti,sci-host-id: Host ID to which the processor control is transferred to
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Example:
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---------
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a53_0: a53@0 {
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compatible = "ti,am654-rproc";
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power-domains = <&k3_pds 61>,
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<&k3_pds 202>;
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resets = <&k3_reset 202 0>;
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assigned-clocks = <&k3_clks 202 0>;
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assigned-clock-rates = <800000000>;
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ti,sci = <&dmsc>;
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ti,sci-proc-id = <32>;
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ti,sci-host-id = <10>;
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};
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