[PATCH] ARM: at91: sama5d3: add usart dma configurations
From: Nicolas Ferre <hidden>
Date: 2014-08-12 17:08:53
Also in:
linux-devicetree
On 12/08/2014 16:37, Ludovic Desroches :
Add the DMA configuration for USARTs mainly because it is not obvious to add the FIFO flag which is needed for rx.
Indeed.
Signed-off-by: Ludovic Desroches <redacted>
Acked-by: Nicolas Ferre <redacted> Thanks, best regards,
quoted hunk
--- arch/arm/boot/dts/sama5d3.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+)diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi index e0b15a6..829c162 100644 --- a/arch/arm/boot/dts/sama5d3.dtsi +++ b/arch/arm/boot/dts/sama5d3.dtsi@@ -177,6 +177,9 @@ compatible = "atmel,at91sam9260-usart"; reg = <0xf001c000 0x100>; interrupts = <12 IRQ_TYPE_LEVEL_HIGH 5>; + dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(3)>, + <&dma0 2 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart0>; clocks = <&usart0_clk>;@@ -188,6 +191,9 @@ compatible = "atmel,at91sam9260-usart"; reg = <0xf0020000 0x100>; interrupts = <13 IRQ_TYPE_LEVEL_HIGH 5>; + dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(5)>, + <&dma0 2 (AT91_DMA_CFG_PER_ID(6) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart1>; clocks = <&usart1_clk>;@@ -333,6 +339,9 @@ compatible = "atmel,at91sam9260-usart"; reg = <0xf8020000 0x100>; interrupts = <14 IRQ_TYPE_LEVEL_HIGH 5>; + dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(7)>, + <&dma1 2 (AT91_DMA_CFG_PER_ID(8) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart2>; clocks = <&usart2_clk>;@@ -344,6 +353,9 @@ compatible = "atmel,at91sam9260-usart"; reg = <0xf8024000 0x100>; interrupts = <15 IRQ_TYPE_LEVEL_HIGH 5>; + dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(9)>, + <&dma1 2 (AT91_DMA_CFG_PER_ID(10) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart3>; clocks = <&usart3_clk>;@@ -410,6 +422,9 @@ compatible = "atmel,at91sam9260-usart"; reg = <0xffffee00 0x200>; interrupts = <2 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(13)>, + <&dma1 2 (AT91_DMA_CFG_PER_ID(14) | AT91_DMA_CFG_FIFOCFG_ASAP)>; + dma-names = "tx", "rx"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&dbgu_clk>;
-- Nicolas Ferre