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Commit 8c07f664 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Nicolas Ferre
Browse files

ARM: at91/dt: introduce atmel,<chip>-dbgu 



The DBGU is not a simple UART and we need to be able to distinguish it from the
other UARTs, in particular to get its address and check the chip id.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
parent b7e9def9

Documentation/devicetree/bindings/serial/atmel-usart.txt

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* Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)



Required properties:

- compatible: Should be "atmel,<chip>-usart"

- compatible: Should be "atmel,<chip>-usart" or "atmel,<chip>-dbgu"

  The compatible <chip> indicated will be the first SoC to support an

  additional mode or an USART new feature.

  For the dbgu UART, use "atmel,<chip>-dbgu", "atmel,<chip>-usart"

- reg: Should contain registers location and length

- interrupts: Should contain interrupt

- clock-names: tuple listing input clock names.

arch/arm/boot/dts/at91rm9200.dtsi

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@@ -830,7 +830,7 @@ 
			};



			dbgu: serial@fffff200 {

				compatible = "atmel,at91rm9200-usart";

				compatible = "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart";

				reg = <0xfffff200 0x200>;

				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

				pinctrl-names = "default";

arch/arm/boot/dts/at91sam9260.dtsi

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@@ -753,7 +753,7 @@ 
			};



			dbgu: serial@fffff200 {

				compatible = "atmel,at91sam9260-usart";

				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";

				reg = <0xfffff200 0x200>;

				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

				pinctrl-names = "default";

arch/arm/boot/dts/at91sam9261.dtsi

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@@ -276,7 +276,7 @@ 
			};



			dbgu: serial@fffff200 {

				compatible = "atmel,at91sam9260-usart";

				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";

				reg = <0xfffff200 0x200>;

				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

				pinctrl-names = "default";

arch/arm/boot/dts/at91sam9263.dtsi

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@@ -762,7 +762,7 @@ 
			};



			dbgu: serial@ffffee00 {

				compatible = "atmel,at91sam9260-usart";

				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";

				reg = <0xffffee00 0x200>;

				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

				pinctrl-names = "default";