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/d-link/dns325/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_DNS325
+
+config SYS_BOARD
+	default "dns325"
+
+config SYS_VENDOR
+	default "d-link"
+
+config SYS_CONFIG_NAME
+	default "dns325"
+
+endif

u-boot/board/d-link/dns325/MAINTAINERS

@@ -0,0 +1,6 @@
+DNS325 BOARD
+M:	Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
+S:	Maintained
+F:	board/d-link/dns325/
+F:	include/configs/dns325.h
+F:	configs/dns325_defconfig

u-boot/board/d-link/dns325/Makefile

@@ -0,0 +1,13 @@
+#
+# Copyright (C) 2011
+# Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= dns325.o

u-boot/board/d-link/dns325/dns325.c

@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2011
+ * Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/mpp.h>
+#include <asm/arch/gpio.h>
+#include "dns325.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	/* Gpio configuration */
+	mvebu_config_gpio(DNS325_OE_VAL_LOW, DNS325_OE_VAL_HIGH,
+			  DNS325_OE_LOW, DNS325_OE_HIGH);
+
+	/* Multi-Purpose Pins Functionality configuration */
+	static const u32 kwmpp_config[] = {
+		MPP0_NF_IO2,
+		MPP1_NF_IO3,
+		MPP2_NF_IO4,
+		MPP3_NF_IO5,
+		MPP4_NF_IO6,
+		MPP5_NF_IO7,
+		MPP6_SYSRST_OUTn,
+		MPP7_GPO,
+		MPP8_TW_SDA,
+		MPP9_TW_SCK,
+		MPP10_UART0_TXD,
+		MPP11_UART0_RXD,
+		MPP12_SD_CLK,
+		MPP13_SD_CMD,
+		MPP14_SD_D0,
+		MPP15_SD_D1,
+		MPP16_SD_D2,
+		MPP17_SD_D3,
+		MPP18_NF_IO0,
+		MPP19_NF_IO1,
+		MPP20_SATA1_ACTn,	/* sata1(left) status led */
+		MPP21_SATA0_ACTn,	/* sata0(right) status led */
+		MPP22_GPIO,
+		MPP23_GPIO,
+		MPP24_GPIO,		/* power off out */
+		MPP25_GPIO,
+		MPP26_GPIO,		/* power led */
+		MPP27_GPIO,		/* sata0(right) error led */
+		MPP28_GPIO,		/* sata1(left) error led */
+		MPP29_GPIO,		/* usb error led */
+		MPP30_GPIO,
+		MPP31_GPIO,
+		MPP32_GPIO,
+		MPP33_GPIO,
+		MPP34_GPIO,		/* power key */
+		MPP35_GPIO,
+		MPP36_GPIO,
+		MPP37_GPIO,
+		MPP38_GPIO,
+		MPP39_GPIO,		/* enable sata 0 */
+		MPP40_GPIO,		/* enable sata 1 */
+		MPP41_GPIO,		/* hdd0 present */
+		MPP42_GPIO,		/* hdd1 present */
+		MPP43_GPIO,		/* usb status led */
+		MPP44_GPIO,		/* fan status */
+		MPP45_GPIO,		/* fan high speed */
+		MPP46_GPIO,		/* fan low speed */
+		MPP47_GPIO,		/* usb umount */
+		MPP48_GPIO,		/* factory reset */
+		MPP49_GPIO,		/* thermal sensor */
+		0
+	};
+	kirkwood_mpp_conf(kwmpp_config, NULL);
+
+	kw_gpio_set_blink(DNS325_GPIO_LED_POWER , 1);
+
+	kw_gpio_set_value(DNS325_GPIO_SATA0_EN , 1);
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Boot parameters address */
+	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+	return 0;
+}
+
+#ifdef CONFIG_RESET_PHY_R
+/* Configure and initialize PHY */
+void reset_phy(void)
+{
+	u16 reg;
+	u16 devadr;
+	char *name = "egiga0";
+
+	if (miiphy_set_current_dev(name))
+		return;
+
+	/* command to read PHY dev address */
+	if (miiphy_read(name, 0xEE, 0xEE, (u16 *) &devadr)) {
+		printf("Err..(%s) could not read PHY dev address\n", __func__);
+		return;
+	}
+
+	/*
+	 * Enable RGMII delay on Tx and Rx for CPU port
+	 * Ref: sec 4.7.2 of chip datasheet
+	 */
+	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 2);
+	miiphy_read(name, devadr, MV88E1116_MAC_CTRL_REG, &reg);
+	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
+	miiphy_write(name, devadr, MV88E1116_MAC_CTRL_REG, reg);
+	miiphy_write(name, devadr, MV88E1116_PGADR_REG, 0);
+
+	/* reset the phy */
+	miiphy_reset(name, devadr);
+
+	debug("88E1116 Initialized on %s\n", name);
+}
+#endif /* CONFIG_RESET_PHY_R */

u-boot/board/d-link/dns325/dns325.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2011
+ * Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __DNS325_H
+#define __DNS325_H
+
+/* GPIO configuration */
+#define DNS325_OE_LOW			0x00000000
+#define DNS325_OE_HIGH			0x00039604
+#define DNS325_OE_VAL_LOW		0x38000000	/* disable leds */
+#define DNS325_OE_VAL_HIGH		0x00000800	/* disable leds */
+
+#define DNS325_GPIO_LED_POWER		26
+#define DNS325_GPIO_SATA0_EN		39
+#define DNS325_GPIO_SATA1_EN		40
+
+/* PHY related */
+#define MV88E1116_MAC_CTRL_REG		21
+#define MV88E1116_PGADR_REG		22
+#define MV88E1116_RGMII_TXTM_CTRL	(1 << 4)
+#define MV88E1116_RGMII_RXTM_CTRL	(1 << 5)
+
+#endif /* __DNS325_H */

u-boot/board/d-link/dns325/kwbimage.cfg

@@ -0,0 +1,192 @@
+#
+# Copyright (C) 2011
+# Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+# Refer doc/README.kwbimage for more details about how-to configure
+# and create kirkwood boot image
+#
+
+# Boot Media configurations
+BOOT_FROM	nand
+NAND_ECC_MODE	default
+NAND_PAGE_SIZE	0x0800
+
+# SOC registers configuration using bootrom header extension
+# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
+
+# Configure RGMII-0 interface pad voltage to 1.8V
+DATA 0xFFD100e0 0x1b1b1b9b
+
+#Dram initalization for SINGLE x16 CL=5 @ 400MHz
+DATA 0xFFD01400 0x43000c30	# DDR Configuration register
+# bit13-0:  0xc30, 3120 DDR2 clks refresh rate
+# bit23-14: 0 required
+# bit24:    1, enable exit self refresh mode on DDR access
+# bit25:    1 required
+# bit29-26: 0 required
+# bit31-30: 0b01 required
+
+DATA 0xFFD01404 0x39543000	# DDR Controller Control Low
+# bit3-0:   0 required
+# bit4:     0, addr/cmd in smame cycle
+# bit5:     0, clk is driven during self refresh, we don't care for APX
+# bit6:     0, use recommended falling edge of clk for addr/cmd
+# bit11-7:  0 required
+# bit12:    1 required
+# bit13:    1 required
+# bit14:    0, input buffer always powered up
+# bit17-15: 0 required
+# bit18:    1, cpu lock transaction enabled
+# bit19:    0 required
+# bit23-20: 5, recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
+# bit27-24: 9, CL+4, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
+# bit30-28: 3 required
+# bit31:    0, no additional STARTBURST delay
+
+DATA 0xFFD01408 0x22125451	# DDR Timing (Low)
+# bit3-0:   1, 18 cycle tRAS (tRAS[3-0])
+# bit7-4:   5, 6 cycle tRCD
+# bit11-8:  4, 5 cyle tRP
+# bit15-12: 5, 6 cyle tWR
+# bit19-16: 2, 3 cyle tWTR
+# bit20:    1, 18 cycle tRAS (tRAS[4])
+# bit23-21: 0 required
+# bit27-24: 2, 3 cycle tRRD
+# bit31-28: 2, 3 cyle tRTP
+
+DATA 0xFFD0140C 0x00000833	#  DDR Timing (High)
+# bit6-0:   0x33, 33 cycle tRFC
+# bit8-7:   0, 1 cycle tR2R
+# bit10-9:  0, 1 cyle tR2W
+# bit12-11: 1, 2 cylce tW2W
+# bit31-13: 0 required
+
+DATA 0xFFD01410 0x0000000c	#  DDR Address Control
+# bit1-0:   0, Cs0width=x8
+# bit3-2:   3, Cs0size=1Gb
+# bit5-4:   0, Cs1width=nonexistent
+# bit7-6:   0, Cs1size=nonexistent
+# bit9-8:   0, Cs2width=nonexistent
+# bit11-10: 0, Cs2size=nonexistent
+# bit13-12: 0, Cs3width=nonexistent
+# bit15-14: 0, Cs3size=nonexistent
+# bit16:    0, Cs0AddrSel
+# bit17:    0, Cs1AddrSel
+# bit18:    0, Cs2AddrSel
+# bit19:    0, Cs3AddrSel
+# bit31-20: 0 required
+
+DATA 0xFFD01414 0x00000000	#  DDR Open Pages Control
+# bit0:    0, OPEn=OpenPage enabled
+# bit31-1: 0 required
+
+DATA 0xFFD01418 0x00000000	#  DDR Operation
+# bit3-0:   0, Cmd=Normal SDRAM Mode
+# bit31-4:  0 required
+
+DATA 0xFFD0141C 0x00000C52	#  DDR Mode
+# bit2-0:   2, Burst Length (2 required)
+# bit3:     0, Burst Type (0 required)
+# bit6-4:   5, CAS Latency (CL) 5
+# bit7:     0, (Test Mode) Normal operation
+# bit8:     0, (Reset DLL) Normal operation
+# bit11-9:  0, Write recovery for auto-precharge (3 required ??)
+# bit12:    0, Fast Active power down exit time (0 required)
+# bit31-13: 0 required
+
+DATA 0xFFD01420 0x00000040	#  DDR Extended Mode
+# bit0:     0, DRAM DLL enabled
+# bit1:     0, DRAM drive strength normal
+# bit2:     0, ODT control Rtt[0] (Rtt=2, 150 ohm termination)
+# bit5-3:   0 required
+# bit6:     1, ODT control Rtt[1] (Rtt=2, 150 ohm termination)
+# bit9-7:   0 required
+# bit10:    0, differential DQS enabled
+# bit11:    0 required
+# bit12:    0, DRAM output buffer enabled
+# bit31-13: 0 required
+
+DATA 0xFFD01424 0x0000F17F	#  DDR Controller Control High
+# bit2-0:   0x7 required
+# bit3:     1, MBUS Burst Chop disabled
+# bit6-4:   0x7 required
+# bit7:     0 required
+# bit8:     1, add writepath sample stage, must be 1 for DDR freq >= 300MHz
+# bit9:     0, no half clock cycle addition to dataout
+# bit10:    0, 1/4 clock cycle skew enabled for addr/ctl signals
+# bit11:    0, 1/4 clock cycle skew disabled for write mesh
+# bit15-12: 0xf required
+# bit31-16: 0 required
+
+DATA 0xFFD01428 0x00085520	# DDR2 ODT Read Timing
+# bit3-0:   0 required
+# bit7-4:   2, 2 cycles from read command to assertion of M_ODT signal
+# bit11-8:  5, 5 cycles from read command to de-assertion of M_ODT signal
+# bit15-12: 5, 5 cycles from read command to assertion of internal ODT signal
+# bit19-16: 8, 8 cycles from read command to de-assertion of internal ODT signal
+# bit31-20: 0 required
+
+DATA 0xFFD0147C 0x00008552	# DDR2 ODT Write Timing
+# bit3-0:   2, 2 cycles from write comand to assertion of M_ODT signal
+# bit7-4:   5, 5 cycles from write command to de-assertion of M_ODT signal
+# bit15-12: 5, 5 cycles from write command to assertion of internal ODT signal
+# bit19-16: 8, 8 cycles from write command to de-assertion of internal ODT signal
+# bit31-16: 0 required
+
+DATA 0xFFD01500 0x00000000	# CS[0]n Base address to 0x0
+DATA 0xFFD01504 0x0FFFFFF1	# CS[0]n Size
+# bit0:     1, Window enabled
+# bit1:     0, Write Protect disabled
+# bit3-2:   0x0, CS0 hit selected
+# bit23-4:  0xfffff required
+# bit31-24: 0x0f, Size (i.e. 256MB)
+
+DATA 0xFFD01508 0x10000000	# CS[1]n Base address to 256Mb
+DATA 0xFFD0150C 0x0FFFFFF5	# CS[1]n Size 256Mb Window enabled for CS1
+# bit0:     1, Window enabled
+# bit1:     0, Write Protect disabled
+# bit3-2:   1, CS1 hit selected
+# bit23-4:  0xfffff required
+# bit31-24: 0x0f, Size (i.e. 256MB)
+
+DATA 0xFFD01514 0x00000000	# CS[2]n Size, window disabled
+DATA 0xFFD0151C 0x00000000	# CS[3]n Size, window disabled
+
+DATA 0xFFD01494 0x00030000	#  DDR ODT Control (Low)
+# bit3-0:   0b0000, (read) M_ODT[0] is not asserted during read from DRAM
+# bit7-4:   0b0000, (read) M_ODT[1] is not asserted during read from DRAM
+# bit15-8:  0 required
+# bit19-16: 0b0011, (write) M_ODT[0] is asserted during write to DRAM CS0 and CS1
+# bit23-20: 0b0000, (write) M_ODT[1] is not asserted during write to DRAM
+# bit31-24: 0 required
+
+DATA 0xFFD01498 0x00000000	#  DDR ODT Control (High)
+# bit1-0:   0, M_ODT[0] assertion is controlled by ODT Control Low register
+# bit3-2:   0, M_ODT[1] assertion is controlled by ODT Control Low register
+# bit31-4   0 required
+
+DATA 0xFFD0149C 0x0000E803	# CPU ODT Control
+# bit3-0:   0b0011, internal ODT is asserted during read from DRAM bank 0-1
+# bit7-4:   0b0000, internal ODT is not asserted during write to DRAM bank 0-4
+# bit9-8:   0, Internal ODT assertion is controlled by fiels
+# bit11-10: 2, M_DQ, M_DM, and M_DQS I/O buffer ODT 75 ohm
+# bit13-12: 2, M_STARTBURST_IN I/O buffer ODT 75 ohm
+# bit14:    1, M_STARTBURST_IN ODT enabled
+# bit15:    1, DDR IO ODT Unit: Drive ODT calibration values
+# bit20-16: 0, Pad N channel driving strength for ODT
+# bit25-21: 0, Pad P channel driving strength for ODT
+# bit31-26: 0 required
+
+DATA 0xFFD01480 0x00000001	# DDR Initialization Control
+# bit0:     1, enable DDR init upon this register write
+# bit31-1:  0, required
+
+# End of Header extension
+DATA 0x0 0x0