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/toradex/colibri_pxa270/Kconfig

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+if TARGET_COLIBRI_PXA270
+
+config SYS_BOARD
+	default "colibri_pxa270"
+
+config SYS_VENDOR
+	default "toradex"
+
+config SYS_CONFIG_NAME
+	default "colibri_pxa270"
+
+endif

u-boot/board/toradex/colibri_pxa270/MAINTAINERS

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+COLIBRI_PXA270 BOARD
+M:	Marek Vasut <marek.vasut@gmail.com>
+S:	Maintained
+F:	board/toradex/colibri_pxa270/
+F:	include/configs/colibri_pxa270.h
+F:	configs/colibri_pxa270_defconfig

u-boot/board/toradex/colibri_pxa270/Makefile

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+#
+# Toradex Colibri PXA270 Support
+#
+# Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= colibri_pxa270.o

u-boot/board/toradex/colibri_pxa270/colibri_pxa270.c

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+/*
+ * Toradex Colibri PXA270 Support
+ *
+ * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/regs-mmc.h>
+#include <asm/arch/pxa.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <serial.h>
+#include <usb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	/* We have RAM, disable cache */
+	dcache_disable();
+	icache_disable();
+
+	/* arch number of Toradex Colibri PXA270 */
+	gd->bd->bi_arch_number = MACH_TYPE_COLIBRI;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0xa0000100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	pxa2xx_dram_init();
+	gd->ram_size = PHYS_SDRAM_1_SIZE;
+	return 0;
+}
+
+#ifdef	CONFIG_CMD_USB
+int board_usb_init(int index, enum usb_init_type init)
+{
+	writel((readl(UHCHR) | UHCHR_PCPL | UHCHR_PSPL) &
+		~(UHCHR_SSEP0 | UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE),
+		UHCHR);
+
+	writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR);
+
+	while (UHCHR & UHCHR_FSBIR)
+		;
+
+	writel(readl(UHCHR) & ~UHCHR_SSE, UHCHR);
+	writel((UHCHIE_UPRIE | UHCHIE_RWIE), UHCHIE);
+
+	/* Clear any OTG Pin Hold */
+	if (readl(PSSR) & PSSR_OTGPH)
+		writel(readl(PSSR) | PSSR_OTGPH, PSSR);
+
+	writel(readl(UHCRHDA) & ~(0x200), UHCRHDA);
+	writel(readl(UHCRHDA) | 0x100, UHCRHDA);
+
+	/* Set port power control mask bits, only 3 ports. */
+	writel(readl(UHCRHDB) | (0x7<<17), UHCRHDB);
+
+	/* enable port 2 */
+	writel(readl(UP2OCR) | UP2OCR_HXOE | UP2OCR_HXS |
+		UP2OCR_DMPDE | UP2OCR_DPPDE, UP2OCR);
+
+	return 0;
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	return 0;
+}
+
+void usb_board_stop(void)
+{
+	writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
+	udelay(11);
+	writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
+
+	writel(readl(UHCCOMS) | 1, UHCCOMS);
+	udelay(10);
+
+	writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN);
+
+	return;
+}
+#endif
+
+#ifdef CONFIG_DRIVER_DM9000
+int board_eth_init(bd_t *bis)
+{
+	return dm9000_initialize(bis);
+}
+#endif
+
+#ifdef	CONFIG_CMD_MMC
+int board_mmc_init(bd_t *bis)
+{
+	pxa_mmc_register(0);
+	return 0;
+}
+#endif