ARM: add support for LaCie 2Big Network v2

This patch adds support for the LaCie 2Big Network v2 board, based on
the Marvell Kirkwood 6281 SoC.

Additional information is available at:
http://lacie-nas.org/doku.php?id=2big_network_v2



Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>

MAINTAINERS

@@ -651,6 +651,7 @@ Simon Guinot <simon.guinot@sequanux.org>
 	inetspace_v2	ARM926EJS (Kirkwood SoC)
 	netspace_v2	ARM926EJS (Kirkwood SoC)
 	netspace_max_v2	ARM926EJS (Kirkwood SoC)
+	net2big_v2	ARM926EJS (Kirkwood SoC)
 
 Igor Grinberg <grinberg@compulab.co.il>
 

board/LaCie/net2big_v2/Makefile

+#
+# Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+# GNU General Public License for more details.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= net2big_v2.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

board/LaCie/net2big_v2/kwbimage.cfg

+#
+# Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# Refer docs/README.kwimage for more details about how-to configure
+# and create kirkwood boot image
+#
+
+# Boot Media configurations
+BOOT_FROM	spi	# Boot from SPI flash
+
+# 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:  0xa00 (2560 DDR2 clks refresh rate)
+# bit23-14: zero
+# bit24: 1= enable exit self refresh mode on DDR access
+# bit25: 1 required
+# bit29-26: zero
+# bit31-30: 01
+
+DATA 0xFFD01404 0x38743000	# DDR Controller Control Low
+# bit 4:    0=addr/cmd in smame cycle
+# bit 5:    0=clk is driven during self refresh, we don't care for APX
+# bit 6:    0=use recommended falling edge of clk for addr/cmd
+# bit14:    0=input buffer always powered up
+# bit18:    1=cpu lock transaction enabled
+# bit23-20: 5=recommended value for CL=5 and STARTBURST_DEL disabled bit31=0
+# bit27-24: 8= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
+# bit30-28: 3 required
+# bit31:    0=no additional STARTBURST delay
+
+DATA 0xFFD01408 0x22125451	# DDR Timing (Low) (active cycles value +1)
+# bit7-4:   TRCD
+# bit11- 8: TRP
+# bit15-12: TWR
+# bit19-16: TWTR
+# bit20:    TRAS msb
+# bit23-21: 0x0
+# bit27-24: TRRD
+# bit31-28: TRTP
+
+DATA 0xFFD0140C 0x00000A32	#  DDR Timing (High)
+# bit6-0:   TRFC
+# bit8-7:   TR2R
+# bit10-9:  TR2W
+# bit12-11: TW2W
+# bit31-13: zero required
+
+DATA 0xFFD01410 0x0000CCCC	#  DDR Address Control
+# bit1-0:   01, Cs0width=x16
+# bit3-2:   11, Cs0size=1Gb
+# bit5-4:   00, Cs2width=nonexistent
+# bit7-6:   00, Cs1size =nonexistent
+# bit9-8:   00, Cs2width=nonexistent
+# bit11-10: 00, Cs2size =nonexistent
+# bit13-12: 00, Cs3width=nonexistent
+# bit15-14: 00, 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,  OpenPage enabled
+# bit31-1: 0 required
+
+DATA 0xFFD01418 0x00000000	#  DDR Operation
+# bit3-0:   0x0, DDR cmd
+# bit31-4:  0 required
+
+DATA 0xFFD0141C 0x00000662	#  DDR Mode
+# bit2-0:   2, BurstLen=2 required
+# bit3:     0, BurstType=0 required
+# bit6-4:   4, CL=5
+# bit7:     0, TestMode=0 normal
+# bit8:     0, DLL reset=0 normal
+# bit11-9:  6, auto-precharge write recovery ????????????
+# bit12:    0, PD must be zero
+# bit31-13: 0 required
+
+DATA 0xFFD01420 0x00000044	#  DDR Extended Mode
+# bit0:    0,  DDR DLL enabled
+# bit1:    1,  DDR drive strenght reduced
+# bit2:    1,  DDR ODT control lsd enabled
+# bit5-3:  000, required
+# bit6:    1,  DDR ODT control msb, enabled
+# bit9-7:  000, required
+# bit10:   0,  differential DQS enabled
+# bit11:   0, required
+# bit12:   0, DDR output buffer enabled
+# bit31-13: 0 required
+
+DATA 0xFFD01424 0x0000F17F	#  DDR Controller Control High
+# bit2-0:  111, required
+# bit3  :  1  , MBUS Burst Chop disabled
+# bit6-4:  111, required
+# bit7  :  1  , D2P Latency enabled
+# 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: 1111 required
+# bit31-16: 0    required
+
+DATA 0xFFD01428 0x00096630	# DDR2 ODT Read Timing (default values)
+DATA 0xFFD0147C 0x00009663	# DDR2 ODT Write Timing (default values)
+
+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:  00, CS0 hit selected
+# bit23-4: ones, required
+# bit31-24: 0x07, Size (i.e. 128MB)
+
+DATA 0xFFD0150C 0x00000000	# CS[1]n Size, window disabled
+DATA 0xFFD01514 0x00000000	# CS[2]n Size, window disabled
+DATA 0xFFD0151C 0x00000000	# CS[3]n Size, window disabled
+
+DATA 0xFFD01494 0x00010000	#  DDR ODT Control (Low)
+# bit3-0:  1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
+# bit19-16:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
+
+DATA 0xFFD01498 0x00000000	#  DDR ODT Control (High)
+# bit1-0:  00, ODT0 controlled by ODT Control (low) register above
+# bit3-2:  01, ODT1 active NEVER!
+# bit31-4: zero, required
+
+DATA 0xFFD0149C 0x0000E40F	# CPU ODT Control
+# bit3-0:  1, ODT0Rd, Internal ODT asserted during read from DRAM bank0
+# bit7-4:  1, ODT0Wr, Internal ODT asserted during write to DRAM bank0
+# bit11-10:1, DQ_ODTSel. ODT select turned on
+
+DATA 0xFFD01480 0x00000001	# DDR Initialization Control
+#bit0=1, enable DDR init upon this register write
+
+# End of Header extension
+DATA 0x0 0x0

board/LaCie/net2big_v2/net2big_v2.c

+/*
+ * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <command.h>
+#include <i2c.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/kirkwood.h>
+#include <asm/arch/mpp.h>
+#include <asm/arch/gpio.h>
+#include "net2big_v2.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	/* GPIO configuration */
+	kw_config_gpio(NET2BIG_V2_OE_VAL_LOW, NET2BIG_V2_OE_VAL_HIGH,
+			NET2BIG_V2_OE_LOW, NET2BIG_V2_OE_HIGH);
+
+	/* Multi-Purpose Pins Functionality configuration */
+	u32 kwmpp_config[] = {
+		MPP0_SPI_SCn,
+		MPP1_SPI_MOSI,
+		MPP2_SPI_SCK,
+		MPP3_SPI_MISO,
+		MPP6_SYSRST_OUTn,
+		MPP7_GPO,		/* Request power-off */
+		MPP8_TW_SDA,
+		MPP9_TW_SCK,
+		MPP10_UART0_TXD,
+		MPP11_UART0_RXD,
+		MPP13_GPIO,		/* Rear power switch (on|auto) */
+		MPP14_GPIO,		/* USB fuse alarm */
+		MPP15_GPIO,		/* Rear power switch (auto|off) */
+		MPP16_GPIO,		/* SATA HDD1 power */
+		MPP17_GPIO,		/* SATA HDD2 power */
+		MPP20_SATA1_ACTn,
+		MPP21_SATA0_ACTn,
+		MPP24_GPIO,		/* USB mode select */
+		MPP26_GPIO,		/* USB device vbus */
+		MPP28_GPIO,		/* USB enable host vbus */
+		MPP29_GPIO,		/* GPIO extension ALE */
+		MPP34_GPIO,		/* Rear Push button 0=on 1=off */
+		MPP35_GPIO,		/* Inhibit switch power-off */
+		MPP36_GPIO,		/* SATA HDD1 presence */
+		MPP37_GPIO,		/* SATA HDD2 presence */
+		MPP40_GPIO,		/* eSATA presence */
+		MPP44_GPIO,		/* GPIO extension (data 0) */
+		MPP45_GPIO,		/* GPIO extension (data 1) */
+		MPP46_GPIO,		/* GPIO extension (data 2) */
+		MPP47_GPIO,		/* GPIO extension (addr 0) */
+		MPP48_GPIO,		/* GPIO extension (addr 1) */
+		MPP49_GPIO,		/* GPIO extension (addr 2) */
+		0
+	};
+
+	kirkwood_mpp_conf(kwmpp_config);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Machine number */
+	gd->bd->bi_arch_number = MACH_TYPE_NET2BIG_V2;
+
+	/* Boot parameters address */
+	gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_CMD_I2C
+	if (!getenv("ethaddr")) {
+		ushort version;
+		uchar mac[6];
+		int ret;
+
+		/* I2C-0 for on-board EEPROM */
+		i2c_set_bus_num(0);
+
+		/* Check layout version for EEPROM data */
+		ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0,
+				CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
+				(uchar *) &version, 2);
+		if (ret != 0) {
+			printf("Error: failed to read I2C EEPROM @%02x\n",
+				CONFIG_SYS_I2C_EEPROM_ADDR);
+			return ret;
+		}
+		version = be16_to_cpu(version);
+		if (version < 1 || version > 3) {
+			printf("Error: unknown version %d for EEPROM data\n",
+				version);
+			return -1;
+		}
+
+		/* Read Ethernet MAC address from EEPROM */
+		ret = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 2,
+				CONFIG_SYS_I2C_EEPROM_ADDR_LEN, mac, 6);
+		if (ret != 0) {
+			printf("Error: failed to read I2C EEPROM @%02x\n",
+				CONFIG_SYS_I2C_EEPROM_ADDR);
+			return ret;
+		}
+		eth_setenv_enetaddr("ethaddr", mac);
+	}
+#endif /* CONFIG_CMD_I2C */
+
+	return 0;
+}
+
+void mv_phy_88e1116_init(char *name)
+{
+	u16 reg;
+	u16 devadr;
+
+	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 */
+	if (miiphy_read(name, devadr, MII_BMCR, &reg) != 0) {
+		printf("Err..(%s) PHY status read failed\n", __func__);
+		return;
+	}
+	if (miiphy_write(name, devadr, MII_BMCR, reg | 0x8000) != 0) {
+		printf("Err..(%s) PHY reset failed\n", __func__);
+		return;
+	}
+
+	debug("88E1116 Initialized on %s\n", name);
+}
+
+/* Configure and initialize PHY */
+void reset_phy(void)
+{
+	mv_phy_88e1116_init("egiga0");
+}
+
+/* Return GPIO push button status */
+static int
+do_read_push_button(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	return !kw_gpio_get_value(NET2BIG_V2_GPIO_PUSH_BUTTON);
+}
+
+U_BOOT_CMD(button, 1, 1, do_read_push_button,
+	   "Return GPIO push button status 0=off 1=on", "");

board/LaCie/net2big_v2/net2big_v2.h

+/*
+ * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef NET2BIG_V2_H
+#define NET2BIG_V2_H
+
+/* GPIO configuration */
+#define NET2BIG_V2_OE_LOW		0x0600E000
+#define NET2BIG_V2_OE_HIGH		0x00000134
+#define NET2BIG_V2_OE_VAL_LOW		0x10030000
+#define NET2BIG_V2_OE_VAL_HIGH		0x00000000
+
+/* Buttons */
+#define NET2BIG_V2_GPIO_PUSH_BUTTON	34
+
+/* PHY related */
+#define MV88E1116_LED_FCTRL_REG		10
+#define MV88E1116_CPRSP_CR3_REG		21
+#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 /* NET2BIG_V2_H */

boards.cfg

@@ -141,6 +141,7 @@ km_kirkwood_pci              arm         arm926ejs   km_arm              keymile
 mgcoge3un                    arm         arm926ejs   km_arm              keymile        kirkwood
 portl2                       arm         arm926ejs   km_arm              keymile        kirkwood
 inetspace_v2                 arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:INETSPACE_V2
+net2big_v2                   arm         arm926ejs   net2big_v2          LaCie          kirkwood
 netspace_v2                  arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:NETSPACE_V2
 netspace_max_v2              arm         arm926ejs   netspace_v2         LaCie          kirkwood    netspace_v2:NETSPACE_MAX_V2
 dreamplug                    arm         arm926ejs   -                   Marvell        kirkwood

include/configs/net2big_v2.h

+/*
+ * Copyright (C) 2011 Simon Guinot <sguinot@lacie.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CONFIG_NET2BIG_V2_H
+#define _CONFIG_NET2BIG_V2_H
+
+/*
+ * Machine number information
+ */
+#define CONFIG_IDENT_STRING		" 2Big v2"
+
+/*
+ * High Level Configuration Options (easy to change)
+ */
+#define CONFIG_FEROCEON_88FR131		/* CPU Core subversion */
+#define CONFIG_KIRKWOOD			/* SOC Family Name */
+#define CONFIG_KW88F6281		/* SOC Name */
+#define CONFIG_MACH_NET2BIG_V2		/* Machine type */
+#define CONFIG_SKIP_LOWLEVEL_INIT	/* disable board lowlevel_init */
+
+/*
+ * Commands configuration
+ */
+#define CONFIG_SYS_NO_FLASH		/* Declare no flash (NOR/SPI) */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SF
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_IDE
+#define CONFIG_CMD_USB
+
+/*
+ * Core clock definition.
+ */
+#define CONFIG_SYS_TCLK			166000000 /* 166MHz */
+
+/*
+ * mv-common.h should be defined after CMD configs since it used them
+ * to enable certain macros
+ */
+#define CONFIG_NR_DRAM_BANKS		2
+#include "mv-common.h"
+
+/* Remove or override few declarations from mv-common.h */
+#undef CONFIG_RBTREE
+#undef CONFIG_ENV_SPI_MAX_HZ
+#undef CONFIG_SYS_IDE_MAXBUS
+#undef CONFIG_SYS_IDE_MAXDEVICE
+#undef CONFIG_SYS_PROMPT
+#define CONFIG_ENV_SPI_MAX_HZ           20000000 /* 20Mhz */
+#define CONFIG_SYS_IDE_MAXBUS           1
+#define CONFIG_SYS_IDE_MAXDEVICE        1
+#define CONFIG_SYS_PROMPT		"2big2> "
+
+/*
+ * Ethernet Driver configuration
+ */
+#ifdef CONFIG_CMD_NET
+#define CONFIG_MISC_INIT_R /* Call misc_init_r() to initialize MAC address */
+#define CONFIG_MVGBE_PORTS		{1, 0} /* enable port 0 only */
+#define CONFIG_NETCONSOLE
+#endif
+
+/*
+ * SATA Driver configuration
+ */
+#ifdef CONFIG_MVSATA_IDE
+#define CONFIG_SYS_ATA_IDE0_OFFSET      MV_SATA_PORT0_OFFSET
+#define CONFIG_SYS_ATA_IDE1_OFFSET      MV_SATA_PORT1_OFFSET
+#endif
+
+/*
+ * Enable GPI0 support
+ */
+#define CONFIG_KIRKWOOD_GPIO
+
+/*
+ * Enable I2C support
+ */
+#ifdef CONFIG_CMD_I2C
+/* I2C EEPROM HT24LC04 (512B - 32 pages of 16 Bytes) */
+#define CONFIG_CMD_EEPROM
+#define CONFIG_SYS_I2C_EEPROM_ADDR		0x50
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	4 /* 16-byte page size */
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN		1 /* 8-bit device address */
+#endif /* CONFIG_CMD_I2C */
+
+/*
+ * File systems support
+ */
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+
+/*
+ * Use the HUSH parser
+ */
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+
+/*
+ * Console configuration
+ */
+#define CONFIG_CONSOLE_MUX
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+
+/*
+ * Enable device tree support
+ */
+#define CONFIG_OF_LIBFDT
+
+/*
+ * Environment variables configurations
+ */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_SECT_SIZE		0x10000	/* 64KB */
+#define CONFIG_ENV_SIZE			0x1000	/* 4KB */
+#define CONFIG_ENV_ADDR			0x70000
+#define CONFIG_ENV_OFFSET		0x70000	/* env starts here */
+
+/*
+ * Default environment variables
+ */
+#define CONFIG_BOOTARGS "console=ttyS0,115200"
+
+#define CONFIG_BOOTCOMMAND					\
+	"dhcp && run netconsole; "				\
+	"if run usbload || run diskload; then bootm; fi"
+
+#define CONFIG_EXTRA_ENV_SETTINGS				\
+	"stdin=serial\0"					\
+	"stdout=serial\0"					\
+	"stderr=serial\0"					\
+	"bootfile=uImage\0"					\
+	"loadaddr=0x800000\0"					\
+	"autoload=no\0"						\
+	"netconsole="						\
+		"set stdin $stdin,nc; "				\
+		"set stdout $stdout,nc; "			\
+		"set stderr $stderr,nc;\0"			\
+	"diskload=ide reset && "				\
+		"ext2load ide 0:1 $loadaddr /boot/$bootfile\0"	\
+	"usbload=usb start && "					\
+		"fatload usb 0:1 $loadaddr /boot/$bootfile\0"
+
+#endif /* _CONFIG_NET2BIG_V2_H */