diff options
| -rw-r--r-- | arch/arm/boot/dts/tegra20.dtsi | 30 | ||||
| -rw-r--r-- | arch/arm/boot/dts/tegra30.dtsi | 31 |
2 files changed, 51 insertions, 10 deletions
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 2e7c83c7253b..008f9f7f6925 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -4,6 +4,14 @@ compatible = "nvidia,tegra20"; interrupt-parent = <&intc>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + serial4 = &uarte; + }; + host1x { compatible = "nvidia,tegra20-host1x", "simple-bus"; reg = <0x50000000 0x00024000>; @@ -218,47 +226,59 @@ status = "disabled"; }; - 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,tegra20-uart" and to enable the APB DMA based serial + * driver, the comptible is "nvidia,tegra20-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; clocks = <&tegra_car 6>; status = "disabled"; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; clocks = <&tegra_car 96>; status = "disabled"; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; clocks = <&tegra_car 55>; status = "disabled"; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; clocks = <&tegra_car 65>; status = "disabled"; }; - serial@70006400 { + uarte: serial@70006400 { compatible = "nvidia,tegra20-uart"; reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + nvidia,dma-request-selector = <&apbdma 20>; clocks = <&tegra_car 66>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 7159bd353f8c..e55c99173704 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -4,6 +4,14 @@ compatible = "nvidia,tegra30"; interrupt-parent = <&intc>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + serial4 = &uarte; + }; + host1x { compatible = "nvidia,tegra30-host1x", "simple-bus"; reg = <0x50000000 0x00024000>; @@ -213,47 +221,60 @@ 0x70003000 0x3e4>; /* 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,tegra30-uart", "nvidia,tegra20-uart" and to enable + * the APB DMA based serial driver, the comptible is + * "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; clocks = <&tegra_car 6>; status = "disabled"; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; clocks = <&tegra_car 160>; status = "disabled"; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; clocks = <&tegra_car 55>; status = "disabled"; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; clocks = <&tegra_car 65>; status = "disabled"; }; - serial@70006400 { + uarte: serial@70006400 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + nvidia,dma-request-selector = <&apbdma 20>; clocks = <&tegra_car 66>; status = "disabled"; }; |