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/board/broadcom/bcm_ep/board.c

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2014 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <config.h>
+#include <netdev.h>
+#include <asm/system.h>
+#include <asm/iproc-common/armpll.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * board_init - early hardware init
+ */
+int board_init(void)
+{
+	/*
+	 * Address of boot parameters passed to kernel
+	 * Use default offset 0x100
+	 */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
+
+/*
+ * dram_init - sets u-boot's idea of sdram size
+ */
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size = gd->ram_size;
+}
+
+int board_early_init_f(void)
+{
+	uint32_t status = 0;
+
+	/* Setup PLL if required */
+#if defined(CONFIG_ARMCLK)
+	armpll_config(CONFIG_ARMCLK);
+#endif
+
+	return status;
+}
+
+#ifdef CONFIG_ARMV7_NONSEC
+void smp_set_core_boot_addr(unsigned long addr, int corenr)
+{
+}
+
+void smp_kick_all_cpus(void)
+{
+}
+
+void smp_waitloop(unsigned previous_address)
+{
+}
+#endif
+
+#ifdef CONFIG_BCM_SF2_ETH
+int board_eth_init(bd_t *bis)
+{
+	int rc = -1;
+	printf("Registering BCM sf2 eth\n");
+	rc = bcm_sf2_eth_register(bis, 0);
+	return rc;
+}
+#endif