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>

diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 726274f..bbb3ba6 100644 (file)
--- 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 140217a..43bb5b5 100644 (file)
--- 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";