arm64: versal2: Add support for AMD Versal Gen 2

Add support for AMD Versal Gen 2. SoC is based on Cortex-a78ae 4 cluster/2
cpu core each. A lot of IPs are shared with previous families. There are
couple of new IP blocks where the most interesting from user point of view
is UFS.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/bc2b70831ce1031bd0fac32357bff84936e1310f.1716994063.git.michal.simek@amd.com

arch/arm/mach-versal2/clk.c

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016 - 2022,  Xilinx, Inc.
+ * Copyright (C) 2022 - 2024, Advanced Micro Devices, Inc.
+ *
+ * Michal Simek <michal.simek@amd.com>
+ */
+
+#include <init.h>
+#include <time.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_CLOCKS
+/**
+ * set_cpu_clk_info - Initialize clock framework
+ *
+ * Return: 0 always.
+ *
+ * This function is called from common code after relocation and sets up the
+ * clock framework. The framework must not be used before this function had been
+ * called.
+ */
+int set_cpu_clk_info(void)
+{
+	gd->cpu_clk = get_tbclk();
+
+	gd->bd->bi_arm_freq = gd->cpu_clk / 1000000;
+	gd->bd->bi_dsp_freq = 0;
+
+	return 0;
+}
+#endif