From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx> The UART submodule in Flexcom has 32-byte Transmit and Receive FIFOs. Tested uart7 on sama5d2-icp, which has both DMA and FIFO enabled. Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx> --- arch/arm/boot/dts/sama5d2.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index acb91908bd74..dde969a140b4 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -701,6 +701,7 @@ AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(14))>; dma-names = "tx", "rx"; + atmel,fifo-size = <32>; status = "disabled"; }; @@ -879,6 +880,7 @@ AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(16))>; dma-names = "tx", "rx"; + atmel,fifo-size = <32>; status = "disabled"; }; }; -- 2.23.0
