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/cmd/softswitch.c

@@ -0,0 +1,41 @@
+/*
+ * cmd_softswitch.c - set the softswitch for bf60x
+ *
+ * Copyright (c) 2012 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/soft_switch.h>
+
+int do_softswitch(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int switchaddr, value, pin, port;
+
+	if (argc != 5)
+		return CMD_RET_USAGE;
+
+	if (strcmp(argv[2], "GPA") == 0)
+		port = IO_PORT_A;
+	else if (strcmp(argv[2], "GPB") == 0)
+		port = IO_PORT_B;
+	else
+		return CMD_RET_USAGE;
+
+	switchaddr = simple_strtoul(argv[1], NULL, 16);
+	pin = simple_strtoul(argv[3], NULL, 16);
+	value = simple_strtoul(argv[4], NULL, 16);
+
+	config_switch_bit(switchaddr, port, (1 << pin), IO_PORT_OUTPUT, value);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	softswitch_output, 5, 1, do_softswitch,
+	"switchaddr GPA/GPB pin_offset value",
+	""
+);