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/spear/x600/x600.c

@@ -0,0 +1,147 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * Copyright (C) 2012 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <micrel.h>
+#include <nand.h>
+#include <netdev.h>
+#include <phy.h>
+#include <rtc.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_defs.h>
+#include <asm/arch/spr_misc.h>
+#include <linux/mtd/fsmc_nand.h>
+#include "fpga.h"
+
+static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
+
+int board_init(void)
+{
+	/*
+	 * X600 is equipped with an M41T82 RTC. This RTC has the
+	 * HT bit (Halt Update), which needs to be cleared upon
+	 * power-up. Otherwise the RTC is halted.
+	 */
+	rtc_reset();
+
+	return spear_board_init(MACH_TYPE_SPEAR600);
+}
+
+int board_late_init(void)
+{
+	/*
+	 * Monitor and env protection on by default
+	 */
+	flash_protect(FLAG_PROTECT_SET,
+		      CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE +
+		      CONFIG_SYS_SPL_LEN + CONFIG_SYS_MONITOR_LEN +
+		      2 * CONFIG_ENV_SECT_SIZE - 1,
+		      &flash_info[0]);
+
+	/* Init FPGA subsystem */
+	x600_init_fpga();
+
+	return 0;
+}
+
+/*
+ * board_nand_init - Board specific NAND initialization
+ * @nand:	mtd private chip structure
+ *
+ * Called by nand_init_chip to initialize the board specific functions
+ */
+
+void board_nand_init(void)
+{
+	struct misc_regs *const misc_regs_p =
+		(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+	struct nand_chip *nand = &nand_chip[0];
+
+	if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
+		fsmc_nand_init(nand);
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	unsigned short id1, id2;
+
+	/* check whether KSZ9031 or AR8035 has to be configured */
+	id1 = phy_read(phydev, MDIO_DEVAD_NONE, 2);
+	id2 = phy_read(phydev, MDIO_DEVAD_NONE, 3);
+
+	if ((id1 == 0x22) && ((id2 & 0xFFF0) == 0x1620)) {
+		/* PHY configuration for Micrel KSZ9031 */
+		printf("PHY KSZ9031 detected - ");
+
+		phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
+
+		/* control data pad skew - devaddr = 0x02, register = 0x04 */
+		ksz9031_phy_extended_write(phydev, 0x02,
+					   MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
+					   MII_KSZ9031_MOD_DATA_NO_POST_INC,
+					   0x0000);
+		/* rx data pad skew - devaddr = 0x02, register = 0x05 */
+		ksz9031_phy_extended_write(phydev, 0x02,
+					   MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
+					   MII_KSZ9031_MOD_DATA_NO_POST_INC,
+					   0x0000);
+		/* tx data pad skew - devaddr = 0x02, register = 0x05 */
+		ksz9031_phy_extended_write(phydev, 0x02,
+					   MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
+					   MII_KSZ9031_MOD_DATA_NO_POST_INC,
+					   0x0000);
+		/* gtx and rx clock pad skew - devaddr = 0x02, reg = 0x08 */
+		ksz9031_phy_extended_write(phydev, 0x02,
+					   MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
+					   MII_KSZ9031_MOD_DATA_NO_POST_INC,
+					   0x03FF);
+	} else {
+		/* PHY configuration for Vitesse VSC8641 */
+		printf("PHY VSC8641 detected - ");
+
+		/* Extended PHY control 1, select GMII */
+		phy_write(phydev, MDIO_DEVAD_NONE, 23, 0x0020);
+
+		/* Software reset necessary after GMII mode selction */
+		phy_reset(phydev);
+
+		/* Enable extended page register access */
+		phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0001);
+
+		/* 17e: Enhanced LED behavior, needs to be written twice */
+		phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
+		phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x09ff);
+
+		/* 16e: Enhanced LED method select */
+		phy_write(phydev, MDIO_DEVAD_NONE, 16, 0xe0ea);
+
+		/* Disable extended page register access */
+		phy_write(phydev, MDIO_DEVAD_NONE, 31, 0x0000);
+
+		/* Enable clock output pin */
+		phy_write(phydev, MDIO_DEVAD_NONE, 18, 0x0049);
+	}
+
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int ret = 0;
+
+	if (designware_initialize(CONFIG_SPEAR_ETHBASE,
+				  PHY_INTERFACE_MODE_GMII) >= 0)
+		ret++;
+
+	return ret;
+}