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Add a clock implementation, TI SCI clock, that will hook to the common clock framework, and allow each clock to be controlled via TI SCI protocol. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
Texas Instruments TI-SCI Clocks
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===============================
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All clocks on Texas Instruments' SoCs that contain a System Controller,
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are only controlled by this entity. Communication between a host processor
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running an OS and the System Controller happens through a protocol known
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as TI-SCI[1]. This clock implementation plugs into the common clock
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framework and makes use of the TI-SCI protocol on clock API requests.
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[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
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Required properties:
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-------------------
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- compatible: Must be "ti,k2g-sci-clk"
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- #clock-cells: Shall be 2.
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In clock consumers, this cell represents the device ID and clock ID
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exposed by the PM firmware. The assignments can be found in the header
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files <dt-bindings/genpd/<soc>.h> (which covers the device IDs) and
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<dt-bindings/clock/<soc>.h> (which covers the clock IDs), where <soc>
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is the SoC involved, for example 'k2g'.
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Examples:
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--------
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pmmc: pmmc {
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compatible = "ti,k2g-sci";
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k2g_clks: clocks {
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compatible = "ti,k2g-sci-clk";
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#clock-cells = <2>;
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};
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};
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uart0: serial@2530c00 {
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compatible = "ns16550a";
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clocks = <&k2g_clks 0x2c 0>;
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};
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