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/esd/common/misc.c

@@ -0,0 +1,24 @@
+/*
+ * (C) Copyright 2004
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_LXT971_NO_SLEEP
+#include <miiphy.h>
+#endif
+
+
+#ifdef CONFIG_LXT971_NO_SLEEP
+void lxt971_no_sleep(void)
+{
+	unsigned short reg;
+
+	miiphy_read("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x10, &reg);
+	reg &= ~0x0040;                  /* disable sleep mode */
+	miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x10, reg);
+}
+#endif /* CONFIG_LXT971_NO_SLEEP */