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/drivers/net/phy/teranetics.c

@@ -0,0 +1,112 @@
+/*
+ * Teranetics PHY drivers
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * author Andy Fleming
+ */
+#include <config.h>
+#include <common.h>
+#include <phy.h>
+
+#ifndef CONFIG_PHYLIB_10G
+#error The Teranetics PHY needs 10G support
+#endif
+
+int tn2020_config(struct phy_device *phydev)
+{
+	if (phydev->port == PORT_FIBRE) {
+		unsigned short restart_an = (MDIO_AN_CTRL1_RESTART |
+						MDIO_AN_CTRL1_ENABLE |
+						MDIO_AN_CTRL1_XNP);
+		u8 phy_hwversion;
+
+		/*
+		 * bit 15:12 of register 30.32 indicates PHY hardware
+		 * version. It can be used to distinguish TN80xx from
+		 * TN2020. TN2020 needs write 0x2 to 30.93, but TN80xx
+		 * needs 0x1.
+		 */
+		phy_hwversion = (phy_read(phydev, 30, 32) >> 12) & 0xf;
+		if (phy_hwversion <= 3) {
+			phy_write(phydev, 30, 93, 2);
+			phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an);
+		} else {
+			phy_write(phydev, 30, 93, 1);
+		}
+	}
+
+	return 0;
+}
+
+int tn2020_startup(struct phy_device *phydev)
+{
+	unsigned int timeout = 5 * 1000; /* 5 second timeout */
+
+#define MDIO_PHYXS_LANE_READY (MDIO_PHYXS_LNSTAT_SYNC0 | \
+			       MDIO_PHYXS_LNSTAT_SYNC1 | \
+			       MDIO_PHYXS_LNSTAT_SYNC2 | \
+			       MDIO_PHYXS_LNSTAT_SYNC3 | \
+			       MDIO_PHYXS_LNSTAT_ALIGN)
+
+	/*
+	 * Wait for the XAUI-SERDES lanes to align first.  Under normal
+	 * circumstances, this can take up to three seconds.
+	 */
+	while (--timeout) {
+		int reg = phy_read(phydev, MDIO_MMD_PHYXS, MDIO_PHYXS_LNSTAT);
+		if (reg < 0) {
+			printf("TN2020: Error reading from PHY at "
+			       "address %u\n", phydev->addr);
+			break;
+		}
+		if ((reg & MDIO_PHYXS_LANE_READY) == MDIO_PHYXS_LANE_READY)
+			break;
+		udelay(1000);
+	}
+	if (!timeout) {
+		/*
+		 * A timeout is bad, but it may not be fatal, so don't
+		 * return an error.  Display a warning instead.
+		 */
+		printf("TN2020: Timeout waiting for PHY at address %u to "
+		       "align.\n", phydev->addr);
+	}
+
+	if (phydev->port != PORT_FIBRE)
+		return gen10g_startup(phydev);
+
+	/*
+	 * The TN2020 only pretends to support fiber.
+	 * It works, but it doesn't look like it works,
+	 * so the link status reports no link.
+	 */
+	phydev->link = 1;
+
+	/* For now just lie and say it's 10G all the time */
+	phydev->speed = SPEED_10000;
+	phydev->duplex = DUPLEX_FULL;
+
+	return 0;
+}
+
+struct phy_driver tn2020_driver = {
+	.name = "Teranetics TN2020",
+	.uid = PHY_UID_TN2020,
+	.mask = 0xfffffff0,
+	.features = PHY_10G_FEATURES,
+	.mmds = (MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS |
+			MDIO_DEVS_PHYXS | MDIO_DEVS_AN |
+			MDIO_DEVS_VEND1 | MDIO_DEVS_VEND2),
+	.config = &tn2020_config,
+	.startup = &tn2020_startup,
+	.shutdown = &gen10g_shutdown,
+};
+
+int phy_teranetics_init(void)
+{
+	phy_register(&tn2020_driver);
+
+	return 0;
+}