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/cpu/arm926ejs/lpc32xx/cpu.c

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011-2015 by Vladimir Zapolskiy <vz@mleia.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <netdev.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/wdt.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+
+static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
+static struct wdt_regs  *wdt = (struct wdt_regs *)WDT_BASE;
+
+void reset_cpu(ulong addr)
+{
+	/* Enable watchdog clock */
+	setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
+
+	/* To be compatible with the original U-Boot code:
+	 * addr: - 0: perform hard reset.
+	 *       - !=0: perform a soft reset; i.e. "RESOUT_N" not asserted). */
+	if (addr == 0) {
+		/* Reset pulse length is 13005 peripheral clock frames */
+		writel(13000, &wdt->pulse);
+
+		/* Force WDOG_RESET2 and RESOUT_N signal active */
+		writel(WDTIM_MCTRL_RESFRC2 | WDTIM_MCTRL_RESFRC1
+		       | WDTIM_MCTRL_M_RES2, &wdt->mctrl);
+	} else {
+		/* Force match output active */
+		writel(0x01, &wdt->emr);
+
+		/* Internal reset on match output (no pulse on "RESOUT_N") */
+		writel(WDTIM_MCTRL_M_RES1, &wdt->mctrl);
+	}
+
+	while (1)
+		/* NOP */;
+}
+
+#if defined(CONFIG_ARCH_CPU_INIT)
+int arch_cpu_init(void)
+{
+	/*
+	 * It might be necessary to flush data cache, if U-Boot is loaded
+	 * from kickstart bootloader, e.g. from S1L loader
+	 */
+	flush_dcache_all();
+
+	return 0;
+}
+#else
+#error "You have to select CONFIG_ARCH_CPU_INIT"
+#endif
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo(void)
+{
+	printf("CPU:   NXP LPC32XX\n");
+	printf("CPU clock:        %uMHz\n", get_hclk_pll_rate() / 1000000);
+	printf("AHB bus clock:    %uMHz\n", get_hclk_clk_rate() / 1000000);
+	printf("Peripheral clock: %uMHz\n", get_periph_clk_rate() / 1000000);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_LPC32XX_ETH
+int cpu_eth_init(bd_t *bis)
+{
+	lpc32xx_eth_initialize(bis);
+	return 0;
+}
+#endif