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/olimex/mx23_olinuxino/mx23_olinuxino.c

@@ -0,0 +1,80 @@
+/*
+ * Olimex MX23 Olinuxino board
+ *
+ * Copyright (C) 2013 Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/iomux-mx23.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Functions
+ */
+int board_early_init_f(void)
+{
+	/* IO0 clock at 480MHz */
+	mxs_set_ioclk(MXC_IOCLK0, 480000);
+
+	/* SSP0 clock at 96MHz */
+	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+
+	return 0;
+}
+
+#ifdef CONFIG_CMD_USB
+int board_ehci_hcd_init(int port)
+{
+	/* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */
+	gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 1);
+	udelay(100);
+	return 0;
+}
+
+int board_ehci_hcd_exit(int port)
+{
+	/* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */
+	gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 0);
+	return 0;
+}
+#endif
+
+int dram_init(void)
+{
+	return mxs_dram_init();
+}
+
+#ifdef	CONFIG_CMD_MMC
+static int mx23_olx_mmc_cd(int id)
+{
+	return 1;	/* Card always present */
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	return mxsmmc_initialize(bis, 0, NULL, mx23_olx_mmc_cd);
+}
+#endif
+
+int board_init(void)
+{
+	/* Adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+	status_led_set(STATUS_LED_BOOT, STATUS_LED_STATE);
+#endif
+
+	return 0;
+}