ARM: sunxi: Use the Synosys APB UART instead of ns8250

The UART controller used in the A10/A13 is the Synopsys DesignWare 8250.
The wrong use of a regular 8250 driver may lead to a oops during kernel
boot with "irq 17: nobody cared", because the apb UART as an extra
interrupt that gets raised when writing to the LCR when busy.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/arm/boot/dts/sunxi.dtsi b/arch/arm/boot/dts/sunxi.dtsi
index 8bbc2bfef221..8b36abea9f2e 100644
--- a/arch/arm/boot/dts/sunxi.dtsi
+++ b/arch/arm/boot/dts/sunxi.dtsi
@@ -60,19 +60,21 @@
                 };
 
                 uart0: uart@01c28000 {
-                        compatible = "ns8250";
+                        compatible = "snps,dw-apb-uart";
                         reg = <0x01c28000 0x400>;
                         interrupts = <1>;
                         reg-shift = <2>;
+                        reg-io-width = <4>;
                         clock-frequency = <24000000>;
                         status = "disabled";
                 };
 
                 uart1: uart@01c28400 {
-                        compatible = "ns8250";
+                        compatible = "snps,dw-apb-uart";
                         reg = <0x01c28400 0x400>;
                         interrupts = <2>;
                         reg-shift = <2>;
+                        reg-io-width = <4>;
                         clock-frequency = <24000000>;
                         status = "disabled";
                 };