arm64: tegra: Add Tegra234 TCU device

Add a device for TCU (Tegra Combined UART) used for serial console.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index ffe3003..bd3a011 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -192,6 +192,14 @@
                method = "smc";
        };
 
+       tcu: serial {
+               compatible = "nvidia,tegra234-tcu", "nvidia,tegra194-tcu";
+               mboxes = <&hsp_top0 TEGRA_HSP_MBOX_TYPE_SM TEGRA_HSP_SM_RX(0)>,
+                        <&hsp_aon TEGRA_HSP_MBOX_TYPE_SM TEGRA_HSP_SM_TX(1)>;
+               mbox-names = "rx", "tx";
+               status = "disabled";
+       };
+
        timer {
                compatible = "arm,armv8-timer";
                interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,