From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.ferre@atmel.com (Nicolas Ferre) Date: Tue, 21 Oct 2014 18:38:51 +0200 Subject: [PATCH] at91: sam9x5 dt: add usart dma definitions to dt In-Reply-To: <20141014122423.GA2797@ldesroches-Latitude-E6320> References: <20141014122423.GA2797@ldesroches-Latitude-E6320> Message-ID: <54468C1B.9070500@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 14/10/2014 14:24, Ludovic Desroches : > On Mon, Oct 13, 2014 at 11:02:16AM +0200, Jiri Prchal wrote: >> 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 Acked-by: Nicolas Ferre Stacked on top of at91-3.19-dt. Thanks! >> v2: Add only definitions, enable them in board file. >> --- >> arch/arm/boot/dts/at91sam9x5.dtsi | 12 ++++++++++++ >> arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 3 +++ >> 2 files changed, 15 insertions(+) >> >> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi >> index 726274f..bbb3ba6 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 140217a5..43bb5b5 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"; >> -- >> 1.9.1 >> >> >> _______________________________________________ >> linux-arm-kernel mailing list >> linux-arm-kernel at lists.infradead.org >> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- Nicolas Ferre