From 466fb89be5916af18ba5ea636fc1f7489a71e276 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Thu, 14 May 2020 05:03:14 +0000 Subject: [PATCH] ARM: dts: at91: sama5d2: Add DMA bindings for the SPI and I2C flx0 functions Spare boards of duplicating the DMA bindings. Describe the flx0 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/20200514050301.147442-12-tudor.ambarus@microchip.com Signed-off-by: Alexandre Belloni --- arch/arm/boot/dts/at91-sama5d2_icp.dts | 1 + arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts | 1 - arch/arm/boot/dts/sama5d2.dtsi | 18 ++++++++++++++++++ 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/at91-sama5d2_icp.dts b/arch/arm/boot/dts/at91-sama5d2_icp.dts index 559d8ae93af9a9..8d19925fc09e43 100644 --- a/arch/arm/boot/dts/at91-sama5d2_icp.dts +++ b/arch/arm/boot/dts/at91-sama5d2_icp.dts @@ -105,6 +105,7 @@ status = "okay"; spi2: spi@400 { + dmas = <0>, <0>; cs-gpios = <&pioA PIN_PC0 GPIO_ACTIVE_LOW>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mikrobus2_spi &pinctrl_ksz_spi_cs>; diff --git a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts index 8ad3a9c6c5368f..0e0341c83aa5a2 100644 --- a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts +++ b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts @@ -192,7 +192,6 @@ i2c2: i2c@600 { dmas = <0>, <0>; - dma-names = "tx", "rx"; pinctrl-names = "default", "gpio"; pinctrl-0 = <&pinctrl_flx0_default>; pinctrl-1 = <&pinctrl_flx0_gpio>; diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index 855846c74a32b8..5bba8024f485e1 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -661,6 +661,15 @@ interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>; clocks = <&pmc PMC_TYPE_PERIPHERAL 19>; clock-names = "spi_clk"; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(11))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(12))>; + dma-names = "tx", "rx"; atmel,fifo-size = <16>; status = "disabled"; }; @@ -672,6 +681,15 @@ #address-cells = <1>; #size-cells = <0>; clocks = <&pmc PMC_TYPE_PERIPHERAL 19>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(11))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | + AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(12))>; + dma-names = "tx", "rx"; atmel,fifo-size = <16>; status = "disabled"; };