avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/arm/mach-at91/armv7/sama5d2_devices.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015 Atmel Corporation
+ *		      Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/sama5d2.h>
+
+char *get_cpu_name()
+{
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_sama5d2()) {
+		switch (extension_id) {
+		case ARCH_EXID_SAMA5D21CU:
+			return "SAMA5D21";
+		case ARCH_EXID_SAMA5D22CU:
+			return "SAMA5D22-CU";
+		case ARCH_EXID_SAMA5D22CN:
+			return "SAMA5D22-CN";
+		case ARCH_EXID_SAMA5D23CU:
+			return "SAMA5D23-CU";
+		case ARCH_EXID_SAMA5D24CX:
+			return "SAMA5D24-CX";
+		case ARCH_EXID_SAMA5D24CU:
+			return "SAMA5D24-CU";
+		case ARCH_EXID_SAMA5D26CU:
+			return "SAMA5D26-CU";
+		case ARCH_EXID_SAMA5D27CU:
+			return "SAMA5D27-CU";
+		case ARCH_EXID_SAMA5D27CN:
+			return "SAMA5D27-CN";
+		case ARCH_EXID_SAMA5D28CU:
+			return "SAMA5D28-CU";
+		case ARCH_EXID_SAMA5D28CN:
+			return "SAMA5D28-CN";
+		}
+	}
+
+	return "Unknown CPU type";
+}
+
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+void at91_udp_hw_init(void)
+{
+	at91_upll_clk_enable();
+
+	at91_periph_clk_enable(ATMEL_ID_UDPHS);
+}
+#endif