From: Tudor Ambarus Date: Thu, 14 May 2020 05:03:12 +0000 (+0000) Subject: ARM: dts: at91: sama5d2: Add DMA bindings for the SPI and UART flx4 functions X-Git-Tag: v5.8-rc1~137^2~30^2~10 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ddcdaeb88242ca9b2a3ded2c6cb1d664e0ce24a3;p=linux.git ARM: dts: at91: sama5d2: Add DMA bindings for the SPI and UART flx4 functions Spare boards of duplicating the DMA bindings. Describe the flx4 DMA bindings in the SoC dtsi. Users that don't want to use DMA for their flexcom functions have to overwrite the flexcom DMA bindings in their board device tree. Signed-off-by: Tudor Ambarus Link: https://lore.kernel.org/r/20200514050301.147442-9-tudor.ambarus@microchip.com Signed-off-by: Alexandre Belloni --- diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts index a0deff15fb9a..6ad66d034305 100644 --- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts +++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts @@ -190,12 +190,14 @@ status = "okay"; uart9: serial@200 { + dmas = <0>, <0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_flx4_default>; status = "disabled"; /* Conflict with spi6 and i2c6. */ }; spi6: spi@400 { + dmas = <0>, <0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mikrobus_spi &pinctrl_mikrobus1_spi_cs &pinctrl_mikrobus2_spi_cs>; status = "okay"; /* Conflict with uart5 and i2c6. */ diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index dde969a140b4..66aa8d6502d3 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -939,6 +939,15 @@ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>; clocks = <&pmc PMC_TYPE_PERIPHERAL 23>; clock-names = "usart"; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(19))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(20))>; + dma-names = "tx", "rx"; atmel,fifo-size = <32>; status = "disabled"; }; @@ -949,6 +958,15 @@ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>; clocks = <&pmc PMC_TYPE_PERIPHERAL 23>; clock-names = "spi_clk"; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(19))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(20))>; + dma-names = "tx", "rx"; atmel,fifo-size = <16>; status = "disabled"; };