From: Jiri Prchal Date: Mon, 13 Oct 2014 09:02:16 +0000 (+0200) Subject: ARM: at91: at91sam9x5 dt: add usart dma definitions to dt X-Git-Tag: v3.19-rc1~57^2~21^2~3 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=dd4f25a3ed55cc4c429869e522ee57ed05cce821;p=users%2Fjedix%2Flinux-maple.git 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 Acked-by: Ludovic Desroches Signed-off-by: Nicolas Ferre --- diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 726274f7959b6..bbb3ba65165f5 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 140217a543846..43bb5b51caa66 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";