111936ff3b
This patch adds a simple Device Tree binding for the mvsdio driver, as well as the necessary documentation for it. Compatibility with non-DT platforms is preserved, by keeping the platform_data based initialization. We introduce a small difference between non-DT and DT platforms: DT platforms are required to provide a clocks = <...> property, which the driver uses to get the frequency of the clock that goes to the SDIO IP. The behaviour on non-DT platforms is kept unchanged: a clock reference is not mandatory, but the clock frequency must be passed in the "clock" field of the mvsdio_platform_data structure. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Stefan Peter <s.peter@mpl.ch> Tested-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Chris Ball <cjb@laptop.org>
18 lines
424 B
Plaintext
18 lines
424 B
Plaintext
* Marvell orion-sdio controller
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This file documents differences between the core properties in mmc.txt
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and the properties used by the orion-sdio driver.
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- compatible: Should be "marvell,orion-sdio"
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- clocks: reference to the clock of the SDIO interface
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Example:
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mvsdio@d00d4000 {
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compatible = "marvell,orion-sdio";
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reg = <0xd00d4000 0x200>;
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interrupts = <54>;
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clocks = <&gateclk 17>;
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status = "disabled";
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};
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