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[v2,14/14] ARM: dts: at91: at91sam9x5ek: use DMA for USART0

Message ID 1507630189-15504-15-git-send-email-claudiu.beznea@microchip.com (mailing list archive)
State New, archived
Headers show

Commit Message

Claudiu Beznea Oct. 10, 2017, 10:09 a.m. UTC 
From: Nicolas Ferre <nicolas.ferre@microchip.com>

Use DMA for USART0 (which is used as ttyS1) as we have enough channels and to
show how to specify DMA use with serial nodes.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 arch/arm/boot/dts/at91sam9x5ek.dtsi | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
index 9d2bbc41a7b0..a85eb51e6aa8 100644
--- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
@@ -50,6 +50,8 @@ 
 			};
 
 			usart0: serial@f801c000 {
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};