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/mach-davinci/ksz8873.c

@@ -0,0 +1,53 @@
+/*
+ * Micrel KSZ8873 PHY Driver for TI DaVinci
+ * (TMS320DM644x) based boards.
+ *
+ * Copyright (C) 2011 Heiko Schocher <hsdenx.de>
+ *
+ * based on:
+ * National Semiconductor DP83848 PHY Driver for TI DaVinci
+ * (TMS320DM644x) based boards.
+ *
+ * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * --------------------------------------------------------
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <net.h>
+#include <asm/arch/emac_defs.h>
+#include <asm/io.h>
+#include "../../../drivers/net/davinci_emac.h"
+
+int ksz8873_is_phy_connected(int phy_addr)
+{
+	u_int16_t	dummy;
+
+	return davinci_eth_phy_read(phy_addr, MII_PHYSID1, &dummy);
+}
+
+int ksz8873_get_link_speed(int phy_addr)
+{
+	emac_regs *emac = (emac_regs *)EMAC_BASE_ADDR;
+
+	/* we always have a link to the switch, 100 FD */
+	writel((EMAC_MACCONTROL_MIIEN_ENABLE |
+		EMAC_MACCONTROL_FULLDUPLEX_ENABLE),
+	       &emac->MACCONTROL);
+	return 1;
+}
+
+
+int ksz8873_init_phy(int phy_addr)
+{
+	return 1;
+}
+
+
+int ksz8873_auto_negotiate(int phy_addr)
+{
+	return dp83848_get_link_speed(phy_addr);
+}