diff options
| -rw-r--r-- | arch/arm/boot/dts/tegra114.dtsi | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi index 552e63972f14..352c2f32925e 100644 --- a/arch/arm/boot/dts/tegra114.dtsi +++ b/arch/arm/boot/dts/tegra114.dtsi @@ -4,6 +4,13 @@ compatible = "nvidia,tegra114"; interrupt-parent = <&gic>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + }; + gic: interrupt-controller { compatible = "arm,cortex-a15-gic"; #interrupt-cells = <3>; @@ -99,38 +106,50 @@ 0x70003000 0x40c>; /* Mux registers */ }; - serial@70006000 { + /* + * There are two serial driver i.e. 8250 based simple serial + * driver and APB DMA based serial driver for higher baudrate + * and performace. To enable the 8250 based driver, the compatible + * is "nvidia,tegra114-uart", "nvidia,tegra20-uart" and to enable + * the APB DMA based serial driver, the comptible is + * "nvidia,tegra114-hsuart", "nvidia,tegra30-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; status = "disabled"; clocks = <&tegra_car 6>; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; status = "disabled"; clocks = <&tegra_car 192>; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; status = "disabled"; clocks = <&tegra_car 55>; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; status = "disabled"; clocks = <&tegra_car 65>; }; |