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Add documentation for the Marvell clock divider driver, which is used to source clocks for the AXI bus, video decoder, GPU and LCD blocks. Acked-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
29 lines
844 B
Plaintext
29 lines
844 B
Plaintext
PLL divider based Dove clocks
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Marvell Dove has a 2GHz PLL, which feeds into a set of dividers to provide
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high speed clocks for a number of peripherals. These dividers are part of
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the PMU, and thus this node should be a child of the PMU node.
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The following clocks are provided:
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ID Clock
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-------------
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0 AXI bus clock
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1 GPU clock
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2 VMeta clock
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3 LCD clock
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Required properties:
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- compatible : shall be "marvell,dove-divider-clock"
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- reg : shall be the register address of the Core PLL and Clock Divider
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Control 0 register. This will cover that register, as well as the
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Core PLL and Clock Divider Control 1 register. Thus, it will have
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a size of 8.
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- #clock-cells : from common clock binding; shall be set to 1
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divider_clk: core-clock@0064 {
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compatible = "marvell,dove-divider-clock";
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reg = <0x0064 0x8>;
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#clock-cells = <1>;
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};
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