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/micronas/vct/vct.c

@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
+ *
+ * Copyright (C) 2006 Micronas GmbH
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <asm/mipsregs.h>
+#include "vct.h"
+
+#if defined(CONFIG_VCT_PREMIUM)
+#define BOARD_NAME	"PremiumD"
+#elif defined(CONFIG_VCT_PLATINUM)
+#define BOARD_NAME	"PlatinumD"
+#elif defined(CONFIG_VCT_PLATINUMAVC)
+#define BOARD_NAME	"PlatinumAVC"
+#else
+#error "vct: No board variant defined!"
+#endif
+
+#if defined(CONFIG_VCT_ONENAND)
+#define BOARD_NAME_ADD	" OneNAND"
+#else
+#define BOARD_NAME_ADD	" NOR"
+#endif
+
+int board_early_init_f(void)
+{
+	/*
+	 * First initialize the PIN mulitplexing
+	 */
+	vct_pin_mux_initialize();
+
+	/*
+	 * Init the EBI very early so that FLASH can be accessed
+	 */
+	ebi_initialize();
+
+	return 0;
+}
+
+void _machine_restart(void)
+{
+	reg_write(DCGU_EN_WDT_RESET(DCGU_BASE), DCGU_MAGIC_WDT);
+	reg_write(WDT_TORR(WDT_BASE), 0x00);
+	reg_write(WDT_CR(WDT_BASE), 0x1D);
+
+	/*
+	 * Now wait for the watchdog to trigger the reset
+	 */
+	udelay(1000000);
+}
+
+/*
+ * SDRAM is already configured by the bootstrap code, only return the
+ * auto-detected size here
+ */
+phys_size_t initdram(int board_type)
+{
+	return get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+			    CONFIG_SYS_MBYTES_SDRAM << 20);
+}
+
+int checkboard(void)
+{
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
+	u32 config0 = read_c0_prid();
+
+	if ((config0 & 0xff0000) == PRID_COMP_LEGACY
+	    && (config0 & 0xff00) == PRID_IMP_LX4280) {
+		puts("Board: MDED \n");
+		printf("CPU:   LX4280 id: 0x%02x, rev: 0x%02x\n",
+		       (config0 >> 8) & 0xFF, config0 & 0xFF);
+	} else if ((config0 & 0xff0000) == PRID_COMP_MIPS
+		   && (config0 & 0xff00) == PRID_IMP_VGC) {
+		u32 jedec_id = *((u32 *) 0xBEBC71A0);
+		if ((((jedec_id) >> 12) & 0xFF) == 0x40) {
+			puts("Board: VGCA \n");
+		} else if ((((jedec_id) >> 12) & 0xFF) == 0x48
+			   || (((jedec_id) >> 12) & 0xFF) == 0x49) {
+			puts("Board: VGCB \n");
+		}
+		printf("CPU:   MIPS 4K id: 0x%02x, rev: 0x%02x\n",
+		       (config0 >> 8) & 0xFF, config0 & 0xFF);
+	} else if (config0 == 0x19378) {
+		printf("CPU:   MIPS 24K id: 0x%02x, rev: 0x%02x\n",
+		       (config0 >> 8) & 0xFF, config0 & 0xFF);
+	} else {
+		printf("Unsupported cpu %d, proc_id=0x%x\n", config0 >> 24,
+		       config0);
+	}
+
+	printf("Board: Micronas VCT " BOARD_NAME BOARD_NAME_ADD);
+	if (i > 0) {
+		puts(", serial# ");
+		puts(buf);
+	}
+	putc('\n');
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+#ifdef CONFIG_SMC911X
+	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+	return rc;
+}