surfacert uarta dsti example

uarta: serial@70006000 {
        compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
        reg = <0x70006000 0x40>;
        reg-shift = <2>;
        interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&tegra_car TEGRA30_CLK_UARTA>;
        resets = <&tegra_car 6>;
        reset-names = "serial";
        dmas = <&apbdma 8>, <&apbdma 8>;
        dma-names = "rx", "tx";
        status = "disabled";
    };

&uarta {
    status = "okay";
};
aliases {
        seriala = &uarta;
};

chosen {
        stdout-path = "seriala:115200n8";
};