arm64: tegra: Add Tegra194 chip device tree

Add the chip-level device tree, including binding headers, for the
NVIDIA Tegra194 "Xavier" system-on-chip. Only a small subset of devices
are initially available, enough to boot to UART console.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

include/dt-bindings/power/tegra194-powergate.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. */
+
+#ifndef __ABI_MACH_T194_POWERGATE_T194_H_
+#define __ABI_MACH_T194_POWERGATE_T194_H_
+
+#define TEGRA194_POWER_DOMAIN_AUD	1
+#define TEGRA194_POWER_DOMAIN_DISP	2
+#define TEGRA194_POWER_DOMAIN_DISPB	3
+#define TEGRA194_POWER_DOMAIN_DISPC	4
+#define TEGRA194_POWER_DOMAIN_ISPA	5
+#define TEGRA194_POWER_DOMAIN_NVDECA	6
+#define TEGRA194_POWER_DOMAIN_NVJPG	7
+#define TEGRA194_POWER_DOMAIN_NVENCA	8
+#define TEGRA194_POWER_DOMAIN_NVENCB	9
+#define TEGRA194_POWER_DOMAIN_NVDECB	10
+#define TEGRA194_POWER_DOMAIN_SAX	11
+#define TEGRA194_POWER_DOMAIN_VE	12
+#define TEGRA194_POWER_DOMAIN_VIC	13
+#define TEGRA194_POWER_DOMAIN_XUSBA	14
+#define TEGRA194_POWER_DOMAIN_XUSBB	15
+#define TEGRA194_POWER_DOMAIN_XUSBC	16
+#define TEGRA194_POWER_DOMAIN_PCIEX8A	17
+#define TEGRA194_POWER_DOMAIN_PCIEX4A	18
+#define TEGRA194_POWER_DOMAIN_PCIEX1A	19
+#define TEGRA194_POWER_DOMAIN_PCIEX8B	21
+#define TEGRA194_POWER_DOMAIN_PVAA	22
+#define TEGRA194_POWER_DOMAIN_PVAB	23
+#define TEGRA194_POWER_DOMAIN_DLAA	24
+#define TEGRA194_POWER_DOMAIN_DLAB	25
+#define TEGRA194_POWER_DOMAIN_CV	26
+#define TEGRA194_POWER_DOMAIN_GPU	27
+#define TEGRA194_POWER_DOMAIN_MAX	27
+
+#endif