| Laxman Dewangan | e9ea096 | 2013-01-08 16:27:44 +0530 | [diff] [blame^] | 1 | NVIDIA Tegra20/Tegra30 high speed (DMA based) UART controller driver. |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible : should be "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart". |
| 5 | - reg: Should contain UART controller registers location and length. |
| 6 | - interrupts: Should contain UART controller interrupts. |
| 7 | - nvidia,dma-request-selector : The Tegra DMA controller's phandle and |
| 8 | request selector for this UART controller. |
| 9 | |
| 10 | Optional properties: |
| 11 | - nvidia,enable-modem-interrupt: Enable modem interrupts. Should be enable |
| 12 | only if all 8 lines of UART controller are pinmuxed. |
| 13 | |
| 14 | Example: |
| 15 | |
| 16 | serial@70006000 { |
| 17 | compatible = "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart"; |
| 18 | reg = <0x70006000 0x40>; |
| 19 | reg-shift = <2>; |
| 20 | interrupts = <0 36 0x04>; |
| 21 | nvidia,dma-request-selector = <&apbdma 8>; |
| 22 | nvidia,enable-modem-interrupt; |
| 23 | status = "disabled"; |
| 24 | }; |