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 726274f7959b6a00fdcd992b726b758688898bd1..bbb3ba65165f5b7f2ca132ab2787c87da2b25897 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 140217a5438460ffb7cd23d327a6635522bf49a1..43bb5b51caa6644968c616157119d79d21530ab8 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";