Support for NVIDIA's Tegra T210 SoCs

T210 is the latest chip in the Tegra family of SoCs from NVIDIA. It is an
ARM v8 dual-cluster (A57/A53) SoC, with any one of the clusters being active
at a given point in time.

This patch adds support to boot the Trusted Firmware on T210 SoCs. The patch
also adds support to boot secondary CPUs, enter/exit core power states for
all CPUs in the slow/fast clusters. The support to switch between clusters
is still not available in this patch and would be available later.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/include/platform_def.h b/plat/nvidia/tegra/include/platform_def.h
new file mode 100644
index 0000000..6be777e
--- /dev/null
+++ b/plat/nvidia/tegra/include/platform_def.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __PLATFORM_DEF_H__
+#define __PLATFORM_DEF_H__
+
+#include <arch.h>
+#include <common_def.h>
+
+/*******************************************************************************
+ * Generic platform constants
+ ******************************************************************************/
+
+/* Size of cacheable stacks */
+#if DEBUG_XLAT_TABLE
+#define PLATFORM_STACK_SIZE 0x800
+#elif IMAGE_BL31
+#define PLATFORM_STACK_SIZE 0x400
+#endif
+
+#define TEGRA_PRIMARY_CPU		0x0
+
+#define PLATFORM_MAX_AFFLVL		MPIDR_AFFLVL2
+#define PLATFORM_CORE_COUNT		PLATFORM_MAX_CPUS_PER_CLUSTER
+#define PLATFORM_NUM_AFFS		((PLATFORM_CLUSTER_COUNT * \
+					  PLATFORM_CORE_COUNT) + \
+					  PLATFORM_CLUSTER_COUNT + 1)
+
+/*******************************************************************************
+ * Platform console related constants
+ ******************************************************************************/
+#define TEGRA_CONSOLE_BAUDRATE		115200
+#define TEGRA_BOOT_UART_CLK_IN_HZ	408000000
+
+/*******************************************************************************
+ * Platform memory map related constants
+ ******************************************************************************/
+/* Size of trusted dram */
+#define TZDRAM_SIZE			0x00400000
+#define TZDRAM_END			(TZDRAM_BASE + TZDRAM_SIZE)
+
+/*******************************************************************************
+ * BL31 specific defines.
+ ******************************************************************************/
+#define BL31_BASE			TZDRAM_BASE
+#define BL31_LIMIT			(TZDRAM_BASE + 0x11FFF)
+
+/*******************************************************************************
+ * Platform specific page table and MMU setup constants
+ ******************************************************************************/
+#define ADDR_SPACE_SIZE			(1ull << 32)
+#define MAX_XLAT_TABLES			3
+#define MAX_MMAP_REGIONS		8
+
+/*******************************************************************************
+ * Some data must be aligned on the biggest cache line size in the platform.
+ * This is known only to the platform as it might have a combination of
+ * integrated and external caches.
+ ******************************************************************************/
+#define CACHE_WRITEBACK_SHIFT		6
+#define CACHE_WRITEBACK_GRANULE		(1 << CACHE_WRITEBACK_SHIFT)
+
+#endif /* __PLATFORM_DEF_H__ */