linux_dsm_epyc7002/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt
Rob Herring 4da722ca19 dt-bindings: Remove "status" from examples
Pretty much any node can have a status property, so it doesn't need to
be in examples.

Converted with the following command and removed examples with SoC and
board specific splits:

git grep -l -E 'status.*=.*' Documentation/devicetree/ | xargs sed -i -E '/\sstatus.*=.*"(disabled|ok|okay)/d'

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-09-05 10:03:06 -05:00

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NVIDIA Tegra20/Tegra30 high speed (DMA based) UART controller driver.
Required properties:
- compatible : should be "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart".
- reg: Should contain UART controller registers location and length.
- interrupts: Should contain UART controller interrupts.
- clocks: Must contain one entry, for the module clock.
See ../clocks/clock-bindings.txt for details.
- resets : Must contain an entry for each entry in reset-names.
See ../reset/reset.txt for details.
- reset-names : Must include the following entries:
- serial
- dmas : Must contain an entry for each entry in dma-names.
See ../dma/dma.txt for details.
- dma-names : Must include the following entries:
- rx
- tx
Optional properties:
- nvidia,enable-modem-interrupt: Enable modem interrupts. Should be enable
only if all 8 lines of UART controller are pinmuxed.
Example:
serial@70006000 {
compatible = "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart";
reg = <0x70006000 0x40>;
reg-shift = <2>;
interrupts = <0 36 0x04>;
nvidia,enable-modem-interrupt;
clocks = <&tegra_car 6>;
resets = <&tegra_car 6>;
reset-names = "serial";
dmas = <&apbdma 8>, <&apbdma 8>;
dma-names = "rx", "tx";
};