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/kona-common/clk.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+/* This API file is loosely based on u-boot/drivers/video/ipu.h and linux */
+
+#ifndef __KONA_COMMON_CLK_H
+#define __KONA_COMMON_CLK_H
+
+#include <linux/types.h>
+
+struct clk;
+
+/* Only implement required functions for your specific architecture */
+int clk_init(void);
+struct clk *clk_get(const char *id);
+int clk_enable(struct clk *clk);
+void clk_disable(struct clk *clk);
+unsigned long clk_get_rate(struct clk *clk);
+long clk_round_rate(struct clk *clk, unsigned long rate);
+int clk_set_rate(struct clk *clk, unsigned long rate);
+int clk_set_parent(struct clk *clk, struct clk *parent);
+struct clk *clk_get_parent(struct clk *clk);
+int clk_sdio_enable(void *base, u32 rate, u32 *actual_ratep);
+int clk_bsc_enable(void *base);
+int clk_usb_otg_enable(void *base);
+
+#endif

u-boot/arch/arm/include/asm/kona-common/kona_sdhci.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#ifndef __KONA_SDHCI_H
+#define __KONA_SDHCI_H
+
+int kona_sdhci_init(int dev_index, u32 min_clk, u32 quirks);
+
+#endif