000 {     compatible = "atmel,at00sam0000-usart";     reg = <0xfff0c000 0x000>;     interrupts = <0 IRQ_TYPE_LEVEL_HIGH 0>;     atmel,use-dma-rx;     atmel,use-dma-tx;     pinctrl-names = "default";     pinctrl-0 = <&pinctrl_usart0>;     clocks = <&usart0_clk>;     clock-names = "usart";     status = "disabled";    };     usart0: serial@fff00000 {     compatible = "atmel,at00sam0000-usart";     reg = <0xfff00000 0x000>;     interrupts = <0 IRQ_TYPE_LEVEL_HIGH 0>;     atmel,use-dma-rx;     atmel,use-dma-tx;     pinctrl-names = "default";     pinctrl-0 = <&pinctrl_usart0>;     clocks = <&usart0_clk>;     clock-names = "usart";     status = "disabled";    };     usart0: serial@fff00000 {     compatible = "atmel,at00sam0000-usart";     reg = <0xfff00000 0x000>;     interrupts = <0 IRQ_TYPE_LEVEL_HIGH 0>;     atmel,use-dma-rx;     atmel,use-dma-tx;     pinctrl-names = "default";     pinctrl-0 = <&pinctrl_usart0>;     clocks = <&usart0_clk>;     clock-names = "usart";     status = "disabled";    };     usart0: serial@fff00000 {     compatible = "atmel,at00sam0000-usart";     reg = <0xfff00000 0x000>;     interrupts = <00 IRQ_TYPE_LEVEL_HIGH 0>;     atmel,use-dma-rx;     atmel,use-dma-tx;     pinctrl-names = "default";     pinctrl-0 = <&pinctrl_usart0>;     clocks = <&usart0_clk>;     clock-names = "usart";     status = "disabled";    };     