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563d4f0fa9
Add documentation for mt6779 uart dt-bindings Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
56 lines
2.3 KiB
Plaintext
56 lines
2.3 KiB
Plaintext
* MediaTek Universal Asynchronous Receiver/Transmitter (UART)
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Required properties:
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- compatible should contain:
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* "mediatek,mt2701-uart" for MT2701 compatible UARTS
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* "mediatek,mt2712-uart" for MT2712 compatible UARTS
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* "mediatek,mt6580-uart" for MT6580 compatible UARTS
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* "mediatek,mt6582-uart" for MT6582 compatible UARTS
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* "mediatek,mt6589-uart" for MT6589 compatible UARTS
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* "mediatek,mt6755-uart" for MT6755 compatible UARTS
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* "mediatek,mt6765-uart" for MT6765 compatible UARTS
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* "mediatek,mt6779-uart" for MT6779 compatible UARTS
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* "mediatek,mt6795-uart" for MT6795 compatible UARTS
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* "mediatek,mt6797-uart" for MT6797 compatible UARTS
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* "mediatek,mt7622-uart" for MT7622 compatible UARTS
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* "mediatek,mt7623-uart" for MT7623 compatible UARTS
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* "mediatek,mt7629-uart" for MT7629 compatible UARTS
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* "mediatek,mt8127-uart" for MT8127 compatible UARTS
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* "mediatek,mt8135-uart" for MT8135 compatible UARTS
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* "mediatek,mt8173-uart" for MT8173 compatible UARTS
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* "mediatek,mt8183-uart", "mediatek,mt6577-uart" for MT8183 compatible UARTS
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* "mediatek,mt8516-uart" for MT8516 compatible UARTS
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* "mediatek,mt6577-uart" for MT6577 and all of the above
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- reg: The base address of the UART register bank.
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- interrupts:
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index 0: an interrupt specifier for the UART controller itself
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index 1: optional, an interrupt specifier with edge sensitivity on Rx pin to
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support Rx in-band wake up. If one would like to use this feature,
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one must create an addtional pinctrl to reconfigure Rx pin to normal
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GPIO before suspend.
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- clocks : Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names:
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- "baud": The clock the baudrate is derived from
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- "bus": The bus clock for register accesses (optional)
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For compatibility with older device trees an unnamed clock is used for the
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baud clock if the baudclk does not exist. Do not use this for new designs.
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Example:
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uart0: serial@11006000 {
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compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
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reg = <0x11006000 0x400>;
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interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>,
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<GIC_SPI 52 IRQ_TYPE_EDGE_FALLING>;
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clocks = <&uart_clk>, <&bus_clk>;
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clock-names = "baud", "bus";
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&uart_pin>;
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pinctrl-1 = <&uart_pin_sleep>;
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};
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