arm64: tegra: Enable UART instance on 40-pin header

On P3737 board, UART-A is available on 40-pin header. Enable UART-A for
P3737 and change the compatible string to "nvidia,tegra194-hsuart". This
allows supporting HW flow control and is the preferred choice for higher
baud rates.

Signed-off-by: kartik <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
index 85335c5..34d6a01 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
@@ -14,6 +14,7 @@
        aliases {
                mmc3 = "/bus@0/mmc@3460000";
                serial0 = &tcu;
+               serial1 = &uarta;
        };
 
        bus@0 {
@@ -1743,6 +1744,11 @@
                        };
                };
 
+               serial@3100000 {
+                       compatible = "nvidia,tegra194-hsuart";
+                       status = "okay";
+               };
+
                hda@3510000 {
                        nvidia,model = "NVIDIA Jetson AGX Orin HDA";
                };