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-mx5/clock.h

@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2009
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_CLOCK_H
+#define __ASM_ARCH_CLOCK_H
+
+#include <common.h>
+
+#ifdef CONFIG_SYS_MX5_HCLK
+#define MXC_HCLK	CONFIG_SYS_MX5_HCLK
+#else
+#define MXC_HCLK	24000000
+#endif
+
+#ifdef CONFIG_SYS_MX5_CLK32
+#define MXC_CLK32	CONFIG_SYS_MX5_CLK32
+#else
+#define MXC_CLK32	32768
+#endif
+
+enum mxc_clock {
+	MXC_ARM_CLK = 0,
+	MXC_AHB_CLK,
+	MXC_IPG_CLK,
+	MXC_IPG_PERCLK,
+	MXC_UART_CLK,
+	MXC_CSPI_CLK,
+	MXC_ESDHC_CLK,
+	MXC_ESDHC2_CLK,
+	MXC_ESDHC3_CLK,
+	MXC_ESDHC4_CLK,
+	MXC_FEC_CLK,
+	MXC_SATA_CLK,
+	MXC_DDR_CLK,
+	MXC_NFC_CLK,
+	MXC_PERIPH_CLK,
+	MXC_I2C_CLK,
+};
+
+u32 imx_get_uartclk(void);
+u32 imx_get_fecclk(void);
+unsigned int mxc_get_clock(enum mxc_clock clk);
+int mxc_set_clock(u32 ref, u32 freq, u32 clk_type);
+void set_usb_phy_clk(void);
+void enable_usb_phy1_clk(bool enable);
+void enable_usb_phy2_clk(bool enable);
+void set_usboh3_clk(void);
+void enable_usboh3_clk(bool enable);
+void mxc_set_sata_internal_clock(void);
+int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
+void enable_nfc_clk(unsigned char enable);
+void enable_efuse_prog_supply(bool enable);
+
+#endif /* __ASM_ARCH_CLOCK_H */