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/include/asm/arch-fsl-layerscape/clock.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#ifndef __ASM_ARCH_FSL_LAYERSCAPE_CLOCK_H_
+#define __ASM_ARCH_FSL_LAYERSCAPE_CLOCK_H_
+
+#include <common.h>
+
+enum mxc_clock {
+	MXC_ARM_CLK = 0,
+	MXC_BUS_CLK,
+	MXC_UART_CLK,
+	MXC_ESDHC_CLK,
+	MXC_I2C_CLK,
+	MXC_DSPI_CLK,
+};
+
+unsigned int mxc_get_clock(enum mxc_clock clk);
+
+#endif /* __ASM_ARCH_FSL_LAYERSCAPE_CLOCK_H_ */