[PATCH v3 03/14] ARM: dts: at91: Add `atmel,usart-mode` required property to serial nodes

Claudiu.Beznea at microchip.com Claudiu.Beznea at microchip.com
Fri Sep 16 01:15:04 PDT 2022


On 13.09.2022 17:21, Sergiu Moga wrote:
> Add the missing required DT property `atmel,usart-mode` to the serial
> nodes of Atmel/Microchip DT files.
> 
> Signed-off-by: Sergiu Moga <sergiu.moga at microchip.com>

Applied to at91-dt, thanks!

> ---
> 
> 
> v1 -> v3:
> - Nothing, this patch was not here before
> 
> 
> 
>  arch/arm/boot/dts/at91-sam9x60ek.dts     |  1 +
>  arch/arm/boot/dts/at91rm9200.dtsi        |  6 ++++++
>  arch/arm/boot/dts/at91sam9260.dtsi       |  8 ++++++++
>  arch/arm/boot/dts/at91sam9261.dtsi       |  5 +++++
>  arch/arm/boot/dts/at91sam9263.dtsi       |  5 +++++
>  arch/arm/boot/dts/at91sam9g45.dtsi       |  6 ++++++
>  arch/arm/boot/dts/at91sam9n12.dtsi       |  6 ++++++
>  arch/arm/boot/dts/at91sam9rl.dtsi        |  6 ++++++
>  arch/arm/boot/dts/at91sam9x5.dtsi        |  7 +++++++
>  arch/arm/boot/dts/at91sam9x5_usart3.dtsi |  2 ++
>  arch/arm/boot/dts/sam9x60.dtsi           |  2 ++
>  arch/arm/boot/dts/sama5d2.dtsi           | 11 +++++++++++
>  arch/arm/boot/dts/sama5d3.dtsi           |  7 +++++++
>  arch/arm/boot/dts/sama5d3_uart.dtsi      |  3 +++
>  arch/arm/boot/dts/sama5d4.dtsi           |  9 +++++++++
>  arch/arm/boot/dts/sama7g5.dtsi           |  5 +++++
>  16 files changed, 89 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/at91-sam9x60ek.dts b/arch/arm/boot/dts/at91-sam9x60ek.dts
> index 67bce8d60908..4ba52ba11dc6 100644
> --- a/arch/arm/boot/dts/at91-sam9x60ek.dts
> +++ b/arch/arm/boot/dts/at91-sam9x60ek.dts
> @@ -260,6 +260,7 @@ &flx5 {
>  	uart1: serial at 200 {
>  		compatible = "microchip,sam9x60-dbgu", "microchip,sam9x60-usart", "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  		reg = <0x200 0x200>;
> +		atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  		interrupts = <14 IRQ_TYPE_LEVEL_HIGH 7>;
>  		dmas = <&dma0
>  			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
> index d1181ead18e5..7a113325abb9 100644
> --- a/arch/arm/boot/dts/at91rm9200.dtsi
> +++ b/arch/arm/boot/dts/at91rm9200.dtsi
> @@ -13,6 +13,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -596,6 +597,7 @@ pioD: gpio at fffffa00 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> @@ -607,6 +609,7 @@ dbgu: serial at fffff200 {
>  			usart0: serial at fffc0000 {
>  				compatible = "atmel,at91rm9200-usart";
>  				reg = <0xfffc0000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -620,6 +623,7 @@ usart0: serial at fffc0000 {
>  			usart1: serial at fffc4000 {
>  				compatible = "atmel,at91rm9200-usart";
>  				reg = <0xfffc4000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -633,6 +637,7 @@ usart1: serial at fffc4000 {
>  			usart2: serial at fffc8000 {
>  				compatible = "atmel,at91rm9200-usart";
>  				reg = <0xfffc8000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -646,6 +651,7 @@ usart2: serial at fffc8000 {
>  			usart3: serial at fffcc000 {
>  				compatible = "atmel,at91rm9200-usart";
>  				reg = <0xfffcc000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
> index 9d9820db9482..789fe356dbf6 100644
> --- a/arch/arm/boot/dts/at91sam9260.dtsi
> +++ b/arch/arm/boot/dts/at91sam9260.dtsi
> @@ -11,6 +11,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -532,6 +533,7 @@ pioC: gpio at fffff800 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> @@ -543,6 +545,7 @@ dbgu: serial at fffff200 {
>  			usart0: serial at fffb0000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb0000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -556,6 +559,7 @@ usart0: serial at fffb0000 {
>  			usart1: serial at fffb4000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb4000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -569,6 +573,7 @@ usart1: serial at fffb4000 {
>  			usart2: serial at fffb8000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb8000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -582,6 +587,7 @@ usart2: serial at fffb8000 {
>  			usart3: serial at fffd0000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffd0000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -595,6 +601,7 @@ usart3: serial at fffd0000 {
>  			uart0: serial at fffd4000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffd4000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -608,6 +615,7 @@ uart0: serial at fffd4000 {
>  			uart1: serial at fffd8000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffd8000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <25 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
> index 259aca565305..ee0bd1aceb3f 100644
> --- a/arch/arm/boot/dts/at91sam9261.dtsi
> +++ b/arch/arm/boot/dts/at91sam9261.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -179,6 +180,7 @@ i2c0: i2c at fffac000 {
>  			usart0: serial at fffb0000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb0000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -192,6 +194,7 @@ usart0: serial at fffb0000 {
>  			usart1: serial at fffb4000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb4000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -205,6 +208,7 @@ usart1: serial at fffb4000 {
>  			usart2: serial at fffb8000{
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb8000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -301,6 +305,7 @@ aic: interrupt-controller at fffff000 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
> index c080df8c2312..3ce9ea987312 100644
> --- a/arch/arm/boot/dts/at91sam9263.dtsi
> +++ b/arch/arm/boot/dts/at91sam9263.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -540,6 +541,7 @@ pioE: gpio at fffffa00 {
>  			dbgu: serial at ffffee00 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xffffee00 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> @@ -551,6 +553,7 @@ dbgu: serial at ffffee00 {
>  			usart0: serial at fff8c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff8c000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -564,6 +567,7 @@ usart0: serial at fff8c000 {
>  			usart1: serial at fff90000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff90000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -577,6 +581,7 @@ usart1: serial at fff90000 {
>  			usart2: serial at fff94000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff94000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <9 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
> index 09794561c7ce..95f5d76234db 100644
> --- a/arch/arm/boot/dts/at91sam9g45.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g45.dtsi
> @@ -13,6 +13,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -675,6 +676,7 @@ pioE: gpio at fffffa00 {
>  
>  			dbgu: serial at ffffee00 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				reg = <0xffffee00 0x200>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
> @@ -687,6 +689,7 @@ dbgu: serial at ffffee00 {
>  			usart0: serial at fff8c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff8c000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -700,6 +703,7 @@ usart0: serial at fff8c000 {
>  			usart1: serial at fff90000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff90000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -713,6 +717,7 @@ usart1: serial at fff90000 {
>  			usart2: serial at fff94000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff94000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <9 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -726,6 +731,7 @@ usart2: serial at fff94000 {
>  			usart3: serial at fff98000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfff98000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <10 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
> index 556f35ce49e3..83114d26f10d 100644
> --- a/arch/arm/boot/dts/at91sam9n12.dtsi
> +++ b/arch/arm/boot/dts/at91sam9n12.dtsi
> @@ -11,6 +11,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -593,6 +594,7 @@ pioD: gpio at fffffa00 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> @@ -618,6 +620,7 @@ ssc0: ssc at f0010000 {
>  			usart0: serial at f801c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf801c000 0x4000>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <5 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart0>;
> @@ -629,6 +632,7 @@ usart0: serial at f801c000 {
>  			usart1: serial at f8020000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8020000 0x4000>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart1>;
> @@ -640,6 +644,7 @@ usart1: serial at f8020000 {
>  			usart2: serial at f8024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8024000 0x4000>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart2>;
> @@ -651,6 +656,7 @@ usart2: serial at f8024000 {
>  			usart3: serial at f8028000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8028000 0x4000>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart3>;
> diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
> index 12c634811820..364a2ff0a763 100644
> --- a/arch/arm/boot/dts/at91sam9rl.dtsi
> +++ b/arch/arm/boot/dts/at91sam9rl.dtsi
> @@ -11,6 +11,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/pwm/pwm.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -175,6 +176,7 @@ i2c1: i2c at fffac000 {
>  			usart0: serial at fffb0000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb0000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -188,6 +190,7 @@ usart0: serial at fffb0000 {
>  			usart1: serial at fffb4000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb4000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -201,6 +204,7 @@ usart1: serial at fffb4000 {
>  			usart2: serial at fffb8000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffb8000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -214,6 +218,7 @@ usart2: serial at fffb8000 {
>  			usart3: serial at fffbc000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfffbc000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <9 IRQ_TYPE_LEVEL_HIGH 5>;
>  				atmel,use-dma-rx;
>  				atmel,use-dma-tx;
> @@ -322,6 +327,7 @@ aic: interrupt-controller at fffff000 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
> index ea3b11336c79..0c26c925761b 100644
> --- a/arch/arm/boot/dts/at91sam9x5.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5.dtsi
> @@ -13,6 +13,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -674,6 +675,7 @@ mmc1: mmc at f000c000 {
>  			dbgu: serial at fffff200 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> @@ -688,6 +690,7 @@ dbgu: serial at fffff200 {
>  			usart0: serial at f801c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf801c000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <5 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart0>;
> @@ -702,6 +705,7 @@ usart0: serial at f801c000 {
>  			usart1: serial at f8020000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8020000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart1>;
> @@ -716,6 +720,7 @@ usart1: serial at f8020000 {
>  			usart2: serial at f8024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8024000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart2>;
> @@ -775,6 +780,7 @@ i2c2: i2c at f8018000 {
>  			uart0: serial at f8040000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8040000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <15 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_uart0>;
> @@ -786,6 +792,7 @@ uart0: serial at f8040000 {
>  			uart1: serial at f8044000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8044000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <16 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_uart1>;
> diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
> index 098d3fef5c37..a47c765e1b20 100644
> --- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
> @@ -8,6 +8,7 @@
>  
>  #include <dt-bindings/pinctrl/at91.h>
>  #include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	aliases {
> @@ -44,6 +45,7 @@ pinctrl_usart3_sck: usart3_sck-0 {
>  			usart3: serial at f8028000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8028000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_usart3>;
> diff --git a/arch/arm/boot/dts/sam9x60.dtsi b/arch/arm/boot/dts/sam9x60.dtsi
> index d3f60f6a456d..8f5477e307dd 100644
> --- a/arch/arm/boot/dts/sam9x60.dtsi
> +++ b/arch/arm/boot/dts/sam9x60.dtsi
> @@ -12,6 +12,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  #include <dt-bindings/mfd/atmel-flexcom.h>
>  
>  / {
> @@ -583,6 +584,7 @@ aic: interrupt-controller at fffff100 {
>  			dbgu: serial at fffff200 {
>  				compatible = "microchip,sam9x60-dbgu", "microchip,sam9x60-usart", "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfffff200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <47 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
> index 2c50a021aa76..14c35c12a115 100644
> --- a/arch/arm/boot/dts/sama5d2.dtsi
> +++ b/arch/arm/boot/dts/sama5d2.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/dma/at91.h>
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  #include <dt-bindings/iio/adc/at91-sama5d2_adc.h>
>  
>  / {
> @@ -441,6 +442,7 @@ pdmic: pdmic at f8018000 {
>  			uart0: serial at f801c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf801c000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> @@ -457,6 +459,7 @@ AT91_XDMAC_DT_PERID(35))>,
>  			uart1: serial at f8020000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8020000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <25 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> @@ -473,6 +476,7 @@ AT91_XDMAC_DT_PERID(37))>,
>  			uart2: serial at f8024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8024000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <26 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> @@ -530,6 +534,7 @@ flx0: flexcom at f8034000 {
>  				uart5: serial at 200 {
>  					compatible = "atmel,at91sam9260-usart";
>  					reg = <0x200 0x200>;
> +					atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  					interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 19>;
>  					clock-names = "usart";
> @@ -600,6 +605,7 @@ flx1: flexcom at f8038000 {
>  				uart6: serial at 200 {
>  					compatible = "atmel,at91sam9260-usart";
>  					reg = <0x200 0x200>;
> +					atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  					interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 20>;
>  					clock-names = "usart";
> @@ -769,6 +775,7 @@ AT91_XDMAC_DT_PERID(8))>,
>  			uart3: serial at fc008000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc008000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma1
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
> @@ -785,6 +792,7 @@ AT91_XDMAC_DT_PERID(41))>,
>  			uart4: serial at fc00c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc00c000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
>  					 AT91_XDMAC_DT_PERID(43))>,
> @@ -810,6 +818,7 @@ flx2: flexcom at fc010000 {
>  				uart7: serial at 200 {
>  					compatible = "atmel,at91sam9260-usart";
>  					reg = <0x200 0x200>;
> +					atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  					interrupts = <21 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 21>;
>  					clock-names = "usart";
> @@ -880,6 +889,7 @@ flx3: flexcom at fc014000 {
>  				uart8: serial at 200 {
>  					compatible = "atmel,at91sam9260-usart";
>  					reg = <0x200 0x200>;
> +					atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  					interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 22>;
>  					clock-names = "usart";
> @@ -951,6 +961,7 @@ flx4: flexcom at fc018000 {
>  				uart9: serial at 200 {
>  					compatible = "atmel,at91sam9260-usart";
>  					reg = <0x200 0x200>;
> +					atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  					interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 23>;
>  					clock-names = "usart";
> diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
> index 2d0935ad2225..bde8e92d60bb 100644
> --- a/arch/arm/boot/dts/sama5d3.dtsi
> +++ b/arch/arm/boot/dts/sama5d3.dtsi
> @@ -12,6 +12,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -194,6 +195,7 @@ i2c1: i2c at f0018000 {
>  			usart0: serial at f001c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf001c000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <12 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(3)>,
>  				       <&dma0 2 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
> @@ -208,6 +210,7 @@ usart0: serial at f001c000 {
>  			usart1: serial at f0020000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf0020000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <13 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(5)>,
>  				       <&dma0 2 (AT91_DMA_CFG_PER_ID(6) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
> @@ -222,6 +225,7 @@ usart1: serial at f0020000 {
>  			uart0: serial at f0024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf0024000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <16 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_uart0>;
> @@ -356,6 +360,7 @@ i2c2: i2c at f801c000 {
>  			usart2: serial at f8020000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8020000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <14 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(7)>,
>  				       <&dma1 2 (AT91_DMA_CFG_PER_ID(8) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
> @@ -370,6 +375,7 @@ usart2: serial at f8020000 {
>  			usart3: serial at f8024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8024000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <15 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(9)>,
>  				       <&dma1 2 (AT91_DMA_CFG_PER_ID(10) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
> @@ -464,6 +470,7 @@ ramc0: ramc at ffffea00 {
>  			dbgu: serial at ffffee00 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xffffee00 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>;
>  				dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(13)>,
>  				       <&dma1 2 (AT91_DMA_CFG_PER_ID(14) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
> diff --git a/arch/arm/boot/dts/sama5d3_uart.dtsi b/arch/arm/boot/dts/sama5d3_uart.dtsi
> index a3eaba995cf4..44d1173f2ffb 100644
> --- a/arch/arm/boot/dts/sama5d3_uart.dtsi
> +++ b/arch/arm/boot/dts/sama5d3_uart.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/pinctrl/at91.h>
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/clock/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	aliases {
> @@ -39,6 +40,7 @@ pinctrl_uart1: uart1-0 {
>  			uart0: serial at f0024000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf0024000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <16 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_uart0>;
> @@ -50,6 +52,7 @@ uart0: serial at f0024000 {
>  			uart1: serial at f8028000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8028000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <17 IRQ_TYPE_LEVEL_HIGH 5>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_uart1>;
> diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
> index 1e5c01898ccf..af62157ae214 100644
> --- a/arch/arm/boot/dts/sama5d4.dtsi
> +++ b/arch/arm/boot/dts/sama5d4.dtsi
> @@ -8,6 +8,7 @@
>  
>  #include <dt-bindings/clock/at91.h>
>  #include <dt-bindings/dma/at91.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  #include <dt-bindings/pinctrl/at91.h>
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/gpio/gpio.h>
> @@ -278,6 +279,7 @@ mmc0: mmc at f8000000 {
>  			uart0: serial at f8004000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8004000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -437,6 +439,7 @@ sfr: sfr at f8028000 {
>  			usart0: serial at f802c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf802c000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -455,6 +458,7 @@ usart0: serial at f802c000 {
>  			usart1: serial at f8030000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xf8030000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -490,6 +494,7 @@ mmc1: mmc at fc000000 {
>  			uart1: serial at fc004000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc004000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma0
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -508,6 +513,7 @@ uart1: serial at fc004000 {
>  			usart2: serial at fc008000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc008000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <29 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma1
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -526,6 +532,7 @@ usart2: serial at fc008000 {
>  			usart3: serial at fc00c000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc00c000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <30 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma1
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -544,6 +551,7 @@ usart3: serial at fc00c000 {
>  			usart4: serial at fc010000 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0xfc010000 0x100>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <31 IRQ_TYPE_LEVEL_HIGH 5>;
>  				dmas = <&dma1
>  					(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> @@ -770,6 +778,7 @@ rtc at fc0686b0 {
>  			dbgu: serial at fc069000 {
>  				compatible = "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>  				reg = <0xfc069000 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <45 IRQ_TYPE_LEVEL_HIGH 7>;
>  				pinctrl-names = "default";
>  				pinctrl-0 = <&pinctrl_dbgu>;
> diff --git a/arch/arm/boot/dts/sama7g5.dtsi b/arch/arm/boot/dts/sama7g5.dtsi
> index 249f9c640b6c..7bd8ae8e8d38 100644
> --- a/arch/arm/boot/dts/sama7g5.dtsi
> +++ b/arch/arm/boot/dts/sama7g5.dtsi
> @@ -14,6 +14,7 @@
>  #include <dt-bindings/clock/at91.h>
>  #include <dt-bindings/dma/at91.h>
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/mfd/at91-usart.h>
>  
>  / {
>  	model = "Microchip SAMA7G5 family SoC";
> @@ -603,6 +604,7 @@ flx0: flexcom at e1818000 {
>  			uart0: serial at 200 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&pmc PMC_TYPE_PERIPHERAL 38>;
>  				clock-names = "usart";
> @@ -651,6 +653,7 @@ flx3: flexcom at e1824000 {
>  			uart3: serial at 200 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&pmc PMC_TYPE_PERIPHERAL 41>;
>  				clock-names = "usart";
> @@ -694,6 +697,7 @@ flx4: flexcom at e2018000 {
>  			uart4: serial at 200 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&pmc PMC_TYPE_PERIPHERAL 42>;
>  				clock-names = "usart";
> @@ -719,6 +723,7 @@ flx7: flexcom at e2024000 {
>  			uart7: serial at 200 {
>  				compatible = "atmel,at91sam9260-usart";
>  				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
>  				interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
>  				clocks = <&pmc PMC_TYPE_PERIPHERAL 45>;
>  				clock-names = "usart";



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