ARM: at91: at91sam9x5 dt: add usart dma definitions to dt

This patch adds usart dma definitions to both dtsi for sam9x5 chips. Without
usage of dma it's unable to catch all bytes on usart receiver.

Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

2 files changed, 15 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 726274f7959b..bbb3ba65165f 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -860,6 +860,9 @@
                                 interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&pinctrl_dbgu>;
+                                dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(8)>,
+                                       <&dma1 1 (AT91_DMA_CFG_PER_ID(9) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+                                dma-names = "tx", "rx";
                                 clocks = <&mck>;
                                 clock-names = "usart";
                                 status = "disabled";
@@ -871,6 +874,9 @@
                                 interrupts = <5 IRQ_TYPE_LEVEL_HIGH 5>;
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&pinctrl_usart0>;
+                                dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(3)>,
+                                       <&dma0 1 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+                                dma-names = "tx", "rx";
                                 clocks = <&usart0_clk>;
                                 clock-names = "usart";
                                 status = "disabled";
@@ -882,6 +888,9 @@
                                 interrupts = <6 IRQ_TYPE_LEVEL_HIGH 5>;
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&pinctrl_usart1>;
+                                dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(5)>,
+                                       <&dma0 1 (AT91_DMA_CFG_PER_ID(6) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+                                dma-names = "tx", "rx";
                                 clocks = <&usart1_clk>;
                                 clock-names = "usart";
                                 status = "disabled";
@@ -893,6 +902,9 @@
                                 interrupts = <7 IRQ_TYPE_LEVEL_HIGH 5>;
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&pinctrl_usart2>;
+                                dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(12)>,
+                                       <&dma1 1 (AT91_DMA_CFG_PER_ID(13) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+                                dma-names = "tx", "rx";
                                 clocks = <&usart2_clk>;
                                 clock-names = "usart";
                                 status = "disabled";
diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
index 140217a54384..43bb5b51caa6 100644
--- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
@@ -57,6 +57,9 @@
                                 interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
                                 pinctrl-names = "default";
                                 pinctrl-0 = <&pinctrl_usart3>;
+                                dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(14)>,
+                                       <&dma1 1 (AT91_DMA_CFG_PER_ID(15) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+                                dma-names = "tx", "rx";
                                 clocks = <&usart3_clk>;
                                 clock-names = "usart";
                                 status = "disabled";