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ARM: dts: at91: sama5d2: Add DMA bindings for the flx3 SPI function

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Spare boards of duplicating the DMA bindings. Describe the flx3
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 <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200514050301.147442-10-tudor.ambarus@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Tudor Ambarus
2020-05-14 05:03:12 +00:00
committed by Alexandre Belloni
parent ddcdaeb882
commit b793f16617
3 changed files with 11 additions and 0 deletions
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1
arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
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@@ -179,6 +179,7 @@
};
spi5: spi@400 {
dmas = <0>, <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx3_default>;
status = "disabled"; /* Conflict with isc. */

1
arch/arm/boot/dts/at91-sama5d2_icp.dts
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@@ -167,6 +167,7 @@
status = "okay";
spi5: spi@400 {
dmas = <0>, <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mikrobus1_spi &pinctrl_mikrobus1_spi_cs>;
status = "okay";

9
arch/arm/boot/dts/sama5d2.dtsi
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@@ -919,6 +919,15 @@
interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 22>;
clock-names = "spi_clk";
dmas = <&dma0
(AT91_XDMAC_DT_MEM_IF(0) |
AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(17))>,
<&dma0
(AT91_XDMAC_DT_MEM_IF(0) |
AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(18))>;
dma-names = "tx", "rx";
atmel,fifo-size = <16>;
status = "disabled";
};