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: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
index 40f645b..ebfd5ce 100644
--- a/arch/arm/boot/dts/at91sam9rl.dtsi
+++ b/arch/arm/boot/dts/at91sam9rl.dtsi
@@ -377,7 +377,7 @@
};
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";