From 72247f5502b16b9d33d260a3be5097ac86d23912 Mon Sep 17 00:00:00 2001
From: Sorgelig <pour.garbage@gmail.com>
Date: Fri, 20 Aug 2021 01:43:42 +0800
Subject: [PATCH] Disable DMA on UART0/1. DMA is broken on Designware UARTs.

---
 arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts b/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
index c838379e0..3a13ff0d7 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_de10_nano.dts
@@ -157,10 +157,14 @@
 };
 
 &uart0 {
+	/delete-property/dmas;
+	/delete-property/dma-names;
 	status = "okay";
 };
 
 &uart1 {
+	/delete-property/dmas;
+	/delete-property/dma-names;
 	status = "okay";
 };