arm: K3: Add support for AM654 SoC definition

The AM654 device is designed for industrial automation and PLC
controller class platforms among other applications. Introduce
base support for AM654 SoC.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-k3/am6_init.c b/arch/arm/mach-k3/am6_init.c
new file mode 100644
index 0000000..7a78e85
--- /dev/null
+++ b/arch/arm/mach-k3/am6_init.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * K3: Architecture initialization
+ *
+ * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
+ *	Lokesh Vutla <lokeshvutla@ti.com>
+ */
+
+#include <common.h>
+#include <spl.h>
+
+#ifdef CONFIG_SPL_BUILD
+void board_init_f(ulong dummy)
+{
+	/* Init DM early in-order to invoke system controller */
+	spl_early_init();
+
+	/* Prepare console output */
+	preloader_console_init();
+}
+
+u32 spl_boot_device(void)
+{
+	return BOOT_DEVICE_RAM;
+}
+#endif
+
+#ifndef CONFIG_SYSRESET
+void reset_cpu(ulong ignored)
+{
+}
+#endif