[PATCH 3/3] ARM: dts: at91: sama5d2 Xplained: use DMA for UART3

Nicolas Ferre nicolas.ferre at atmel.com
Thu Dec 1 02:49:49 PST 2016


Use DMA for UART3 as we have enough channels and to show how to
specify DMA use with serial nodes.

Signed-off-by: Nicolas Ferre <nicolas.ferre at atmel.com>
---
 arch/arm/boot/dts/at91-sama5d2_xplained.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 0b9a59d5fdac..e2d5cb3fecb1 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -256,6 +256,8 @@
 			};
 
 			uart3: serial at fc008000 {
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_uart3_default>;
 				status = "okay";
-- 
2.9.0




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