On 13/06/18 00:40, Mars Cheng wrote: > + > + uart0: serial@11002000 { > + compatible = "mediatek,mt6765-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11002000 0 0x400>; > + interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; You need "baud" and "bus" clock. Also add clock-names please. > + > + uart1: serial@11003000 { > + compatible = "mediatek,mt6765-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11003000 0 0x400>; > + interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; Same here obviously. Regards, Matthias -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html