orion: Added initial support for Freecom DT2. Thanks to Zintis.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14963 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 572 insertions, 0 deletions

diff --git a/target/linux/orion/config-default b/target/linux/orion/config-default
index b0971cd0d..ba6fb2e05 100644
--- a/target/linux/orion/config-default
+++ b/target/linux/orion/config-default
@@ -176,6 +176,7 @@ CONFIG_LZO_COMPRESS=m
 CONFIG_LZO_DECOMPRESS=m
 # CONFIG_MACH_DB88F5281 is not set
 # CONFIG_MACH_DNS323 is not set
+CONFIG_MACH_DT2=y
 # CONFIG_MACH_EDMINI_V2 is not set
 # CONFIG_MACH_KUROBOX_PRO is not set
 # CONFIG_MACH_LINKSTATION_MINI is not set
diff --git a/target/linux/orion/files/arch/arm/mach-orion5x/dt2-common.h b/target/linux/orion/files/arch/arm/mach-orion5x/dt2-common.h
new file mode 100755
index 000000000..a54e1883d
--- /dev/null
+++ b/target/linux/orion/files/arch/arm/mach-orion5x/dt2-common.h
@@ -0,0 +1,82 @@
+#ifndef __INC_DT2_COMMON_H
+#define __INC_DT2_COMMON_H
+
+#define ATAG_MV_UBOOT			0x41000403
+
+struct tag_mv_uboot {
+	u32 uboot_version;
+	u32 tclk;
+	u32 sysclk;
+	u32 isUsbHost;
+	u32 overEthAddr;
+	u8  dt2_eeprom[256];
+};
+
+#define DT2_EEPROM_ADDR 		0x50
+#define DT2_EEPROM_OFFSET		0
+#define DT2_EEPROM_LENGTH		256
+
+#define DT2_SERIAL_NUMBER_DEFAULT	"run on default\0"
+#define DT2_REVISION_DEFAULT_INIT 	0xFF
+#define DT2_CONFIG_FLAGS_DEFAULT 	0x00
+
+#define _PACKED_	__attribute__((packed))
+
+struct DT2_EEPROM_SD_CONFIG {
+	unsigned int	ram_1;
+	unsigned int	ram_2;
+	unsigned int	ram_3;
+	unsigned int	ram_4;
+	unsigned char	ram_5;
+	unsigned char	ram_6;
+	unsigned short	ram_7;
+	unsigned int 	magic_id;
+	} _PACKED_;		// 24 Bytes in total
+
+struct DT2_EEPROM_FC_CONFIG {
+	unsigned char	rtc_sts_mask;
+	unsigned char	rtc_sts_init;
+	unsigned char	rtc_int_mask;
+	unsigned char	rtc_int_init;
+	unsigned char	rtc_atrim_init;
+	unsigned char	rtc_dtrim_init;
+	unsigned char	dummy1;
+	unsigned char	dummy2;
+	unsigned char	dt2_config_flags;	/* 0x80 to load rtc_values to RTC */
+	unsigned char	dt2_revision;		/* upper nibble is HW, lower nibble is FW */
+	unsigned char	dt2_serial_number[16];	/* Serial number of DT-2 */
+	} _PACKED_;		// 26 Bytes in total
+
+#define CFG_LOAD_RTC_VALUES 	0x80
+
+struct DT2_EEPROM_GW_CONFIG {
+	unsigned int	dummy1;
+	unsigned int	dummy2;
+	unsigned int	dummy3;
+	unsigned char	dummy4;
+	unsigned char	tos_video_val1;
+	unsigned char	tos_video_val2;
+	unsigned char	tos_voip_val;
+	unsigned char	qos_igmp_cfg;
+	unsigned char	num_of_ifs;
+	unsigned short	vlan_ports_if[3];
+	unsigned char	mac_addr[3][6];
+	} _PACKED_;		// 42 Bytes in total
+
+#define _SIZE_OF_ALL_STRUCTS_ (sizeof(struct DT2_EEPROM_SD_CONFIG) + sizeof(struct DT2_EEPROM_FC_CONFIG) +  sizeof(struct DT2_EEPROM_GW_CONFIG))
+
+// MV = EEPROM - SD - FC - GW - CRC
+struct DT2_EEPROM_MV_CONFIG {
+	unsigned int reg_addr[(DT2_EEPROM_LENGTH - _SIZE_OF_ALL_STRUCTS_ - sizeof(unsigned int)) / (sizeof(unsigned int) * 2)];
+	unsigned int reg_data[(DT2_EEPROM_LENGTH - _SIZE_OF_ALL_STRUCTS_ - sizeof(unsigned int)) / (sizeof(unsigned int) * 2)];
+ 	} _PACKED_;
+
+struct DT2_EEPROM_STRUCT {
+	struct DT2_EEPROM_MV_CONFIG mv;
+	struct DT2_EEPROM_SD_CONFIG sd;
+	struct DT2_EEPROM_FC_CONFIG fc;
+	struct DT2_EEPROM_GW_CONFIG gw;
+	unsigned int	crc;
+	} _PACKED_;
+
+#endif
diff --git a/target/linux/orion/files/arch/arm/mach-orion5x/dt2-setup.c b/target/linux/orion/files/arch/arm/mach-orion5x/dt2-setup.c
new file mode 100644
index 000000000..f794b4cc5
--- /dev/null
+++ b/target/linux/orion/files/arch/arm/mach-orion5x/dt2-setup.c
@@ -0,0 +1,445 @@
+/*
+ * arch/arm/mach-orion5x/dt2-setup.c
+ *
+ * Freecom DataTank Gateway Setup
+ *
+ * Copyright (C) 2009 Zintis Petersons <Zintis.Petersons@abcsolutions.lv>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ethtool.h>
+#include <linux/if_ether.h>
+#include <net/dsa.h>
+#include <linux/ata_platform.h>
+#include <linux/i2c.h>
+#include <linux/reboot.h>
+#include <linux/interrupt.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/leds.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * DT2 local
+ ****************************************************************************/
+#include <asm/setup.h>
+#include "dt2-common.h"
+
+u32 mvUbootVer = 0;
+u32 mvTclk = 166666667;
+u32 mvSysclk = 200000000;
+u32 mvIsUsbHost = 1;
+u32 overEthAddr = 0;
+u32 gBoardId = -1;
+struct DT2_EEPROM_STRUCT dt2_eeprom;
+
+/*****************************************************************************
+ * DT2 Info
+ ****************************************************************************/
+/*
+ * PCI
+ */
+
+#define DT2_PCI_SLOT0_OFFS	7
+#define DT2_PCI_SLOT0_IRQ_A_PIN	3
+#define DT2_PCI_SLOT0_IRQ_B_PIN	2
+
+#define DT2_PIN_GPIO_SYNC	25
+#define DT2_PIN_GPIO_POWER	24
+#define DT2_PIN_GPIO_UNPLUG1	23
+#define DT2_PIN_GPIO_UNPLUG2	22
+#define DT2_PIN_GPIO_RESET	4
+
+#define DT2_NOR_BOOT_BASE	0xf4000000
+#define DT2_NOR_BOOT_SIZE	SZ_512K
+
+#define DT2_LEDS_BASE		0xfa000000
+#define DT2_LEDS_SIZE		SZ_1K
+
+/*****************************************************************************
+ * 512K NOR Flash on Device bus Boot CS
+ ****************************************************************************/
+
+static struct mtd_partition dt2_partitions[] = {
+	{
+		.name	= "u-boot",
+		.size	= 0x00080000,
+		.offset	= 0,
+	},
+};
+
+static struct physmap_flash_data dt2_nor_flash_data = {
+	.width		= 1,		/* 8 bit bus width */
+	.parts		= dt2_partitions,
+	.nr_parts	= ARRAY_SIZE(dt2_partitions)
+};
+
+static struct resource dt2_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= DT2_NOR_BOOT_BASE,
+	.end		= DT2_NOR_BOOT_BASE + DT2_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device dt2_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &dt2_nor_flash_data,
+	},
+	.resource	= &dt2_nor_flash_resource,
+	.num_resources	= 1,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init dt2_pci_preinit(void)
+{
+	int pin, irq;
+
+	/*
+	 * Configure PCI GPIO IRQ pins
+	 */
+	pin = DT2_PCI_SLOT0_IRQ_A_PIN;
+	if (gpio_request(pin, "PCI IntA") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			irq = gpio_to_irq(pin);
+			set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+			printk (KERN_INFO "PCI IntA IRQ: %d\n", irq);
+		} else {
+			printk(KERN_ERR "dt2_pci_preinit failed to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "dt2_pci_preinit failed to request gpio %d\n", pin);
+	}
+
+	pin = DT2_PCI_SLOT0_IRQ_B_PIN;
+	if (gpio_request(pin, "PCI IntB") == 0) {
+		if (gpio_direction_input(pin) == 0) {
+			irq = gpio_to_irq(pin);
+			set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+			printk (KERN_INFO "PCI IntB IRQ: %d\n", irq);
+		} else {
+			printk(KERN_ERR "dt2_pci_preinit failed to "
+					"set_irq_type pin %d\n", pin);
+			gpio_free(pin);
+		}
+	} else {
+		printk(KERN_ERR "dt2_pci_preinit failed to gpio_request %d\n", pin);
+	}
+}
+
+static int __init dt2_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	int irq;
+
+	/*
+	 * Check for devices with hard-wired IRQs.
+	 */
+	irq = orion5x_pci_map_irq(dev, slot, pin);
+	if (irq != -1){
+		printk(KERN_INFO "orion5x_pci_map_irq: %d\n", irq);
+		return irq;
+	}
+
+	/*
+	 * PCI IRQs are connected via GPIOs
+	 */
+	switch (slot - DT2_PCI_SLOT0_OFFS) {
+	case 0:
+		if (pin == 1){
+			irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_A_PIN);
+			printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_A_PIN: %d\n", irq);
+		}
+		else {
+			irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_B_PIN);
+			printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_B_PIN: %d\n", irq);
+		}
+	default:
+		irq = -1;
+			printk(KERN_INFO "dt2_pci_map_irq IRQ: %d\n", irq);
+	}
+
+	return irq;
+}
+
+static struct hw_pci dt2_pci __initdata = {
+	.nr_controllers	= 2,
+	.preinit	= dt2_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= orion5x_pci_sys_setup,
+	.scan		= orion5x_pci_sys_scan_bus,
+	.map_irq	= dt2_pci_map_irq,
+};
+
+static int __init dt2_pci_init(void)
+{
+	if (machine_is_dt2())
+		pci_common_init(&dt2_pci);
+
+	return 0;
+}
+
+subsys_initcall(dt2_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data dt2_eth_data = {
+	.phy_addr	= MV643XX_ETH_PHY_NONE,
+	.speed		= SPEED_1000,
+	.duplex		= DUPLEX_FULL,
+};
+
+static struct dsa_platform_data dt2_switch_data = {
+	.port_names[0] = "wan",
+	.port_names[1] = "lan1",
+	.port_names[2] = "lan2",
+	.port_names[3] = "cpu",
+	.port_names[4] = "lan3",
+	.port_names[5] = "lan4",
+};
+
+/*****************************************************************************
+ * RTC ISL1208 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata dt2_i2c_rtc = {
+	I2C_BOARD_INFO("isl1208", 0x6F),
+};
+
+/*****************************************************************************
+ * Sata
+ ****************************************************************************/
+static struct mv_sata_platform_data dt2_sata_data = {
+	.n_ports	= 2,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static struct orion5x_mpp_mode dt2_mpp_modes[] __initdata = {
+	{  0, MPP_GPIO },		// RTC interrupt
+	{  1, MPP_GPIO },		// 88e6131 interrupt
+	{  2, MPP_GPIO },		// PCI_intB
+	{  3, MPP_GPIO },		// PCI_intA
+	{  4, MPP_GPIO },		// reset button switch
+	{  5, MPP_GPIO },
+	{  6, MPP_GPIO },
+	{  7, MPP_GPIO },
+	{  8, MPP_GPIO },
+	{  9, MPP_GIGE },		/* GE_RXERR */
+	{ 10, MPP_GPIO },		// usb
+	{ 11, MPP_GPIO },		// usb
+	{ 12, MPP_GIGE },		// GE_TXD[4]
+	{ 13, MPP_GIGE },		// GE_TXD[5]
+	{ 14, MPP_GIGE },		// GE_TXD[6]
+	{ 15, MPP_GIGE },		// GE_TXD[7]
+	{ 16, MPP_GIGE },		// GE_RXD[4]
+	{ 17, MPP_GIGE },		// GE_RXD[5]
+	{ 18, MPP_GIGE },		// GE_RXD[6]
+	{ 19, MPP_GIGE },		// GE_RXD[7]
+	{ -1 },
+};
+
+/*****************************************************************************
+ * LEDS
+ ****************************************************************************/
+static struct platform_device dt2_leds = {
+	.name		= "dt2-led",
+	.id		= -1,
+};
+
+/****************************************************************************
+ * GPIO key
+ ****************************************************************************/
+static irqreturn_t dt2_reset_handler(int irq, void *dev_id)
+{
+	/* This is the paper-clip reset which does an emergency reboot. */
+	printk(KERN_INFO "Restarting system.\n");
+	machine_restart(NULL);
+
+	/* This should never be reached. */
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dt2_power_handler(int irq, void *dev_id)
+{
+	printk(KERN_INFO "Shutting down system.\n");
+	machine_power_off();
+	return IRQ_HANDLED;
+}
+
+static void __init dt2_init(void)
+{
+	DECLARE_MAC_BUF(mac_buf);
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(dt2_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	gpio_display();
+
+	orion5x_uart0_init();
+	orion5x_ehci0_init();
+	orion5x_ehci1_init();
+	orion5x_i2c_init();
+	orion5x_sata_init(&dt2_sata_data);
+	orion5x_xor_init();
+
+	printk(KERN_INFO "U-Boot parameters:\n");
+	printk(KERN_INFO "Sys Clk = %d, Tclk = %d, BoardID = 0x%02x\n", mvSysclk, mvTclk, gBoardId);
+
+	printk(KERN_INFO "Serial: %s\n", dt2_eeprom.fc.dt2_serial_number);
+	printk(KERN_INFO "Revision: %016x\n", dt2_eeprom.fc.dt2_revision);
+	printk(KERN_INFO "DT2: Using MAC address %s for port 0\n",
+	       print_mac(mac_buf, dt2_eeprom.gw.mac_addr[0]));
+	printk(KERN_INFO "DT2: Using MAC address %s for port 1\n",
+	       print_mac(mac_buf, dt2_eeprom.gw.mac_addr[1]));
+
+	orion5x_eth_init(&dt2_eth_data);
+	memcpy(dt2_eth_data.mac_addr, dt2_eeprom.gw.mac_addr[0], 6);
+	orion5x_eth_switch_init(&dt2_switch_data, NO_IRQ);
+
+	i2c_register_board_info(0, &dt2_i2c_rtc, 1);
+
+	orion5x_setup_dev_boot_win(DT2_NOR_BOOT_BASE, DT2_NOR_BOOT_SIZE);
+	platform_device_register(&dt2_nor_flash);
+
+	orion5x_setup_dev0_win(DT2_LEDS_BASE, DT2_LEDS_SIZE);
+	platform_device_register(&dt2_leds);
+
+	if (request_irq(gpio_to_irq(DT2_PIN_GPIO_RESET), &dt2_reset_handler,
+			IRQF_DISABLED | IRQF_TRIGGER_LOW,
+			"DT2: Reset button", NULL) < 0) {
+
+		printk("DT2: Reset Button IRQ %d not available\n",
+			gpio_to_irq(DT2_PIN_GPIO_RESET));
+	}
+
+	if (request_irq(gpio_to_irq(DT2_PIN_GPIO_POWER), &dt2_power_handler,
+			IRQF_DISABLED | IRQF_TRIGGER_LOW,
+			"DT2: Power button", NULL) < 0) {
+
+		printk(KERN_DEBUG "DT2: Power Button IRQ %d not available\n",
+			gpio_to_irq(DT2_PIN_GPIO_POWER));
+	}
+}
+
+static int __init parse_tag_dt2_uboot(const struct tag *t)
+{
+	struct tag_mv_uboot *mv_uboot;
+		
+	// Get pointer to our block
+	mv_uboot = (struct tag_mv_uboot*)&t->u;
+	mvTclk = mv_uboot->tclk;
+	mvSysclk = mv_uboot->sysclk;
+	mvUbootVer = mv_uboot->uboot_version;
+	mvIsUsbHost = mv_uboot->isUsbHost;
+
+	// Some clock fixups
+	if(mvTclk == 166000000) mvTclk = 166666667;
+	else if(mvTclk == 133000000) mvTclk = 133333333;
+	else if(mvSysclk == 166000000) mvSysclk = 166666667;
+
+	gBoardId =  (mvUbootVer & 0xff);
+			
+	//DT2 specific data
+	memcpy(&dt2_eeprom, mv_uboot->dt2_eeprom, sizeof(struct DT2_EEPROM_STRUCT));
+
+	return 0;
+}
+__tagtable(ATAG_MV_UBOOT, parse_tag_dt2_uboot);
+
+/*
+ * This is OpenWrt specific fixup. It includes code from original "tag_fixup_mem32" to
+ * fixup bogus memory tags and also fixes kernel cmdline by adding " init=/etc/preinit"
+ * at the end. It is important to flash OpenWrt image from original Freecom firmware.
+ *
+ * Vanilla kernel should use "tag_fixup_mem32" function.
+ */
+void __init openwrt_fixup(struct machine_desc *mdesc, struct tag *t,
+			    char **from, struct meminfo *meminfo)
+{
+	char *p = NULL;
+	static char openwrt_init_tag[] __initdata = " init=/etc/preinit";
+
+	for (; t->hdr.size; t = tag_next(t)){
+		/* Locate the Freecom cmdline */
+		if (t->hdr.tag == ATAG_CMDLINE) {
+			p = t->u.cmdline.cmdline;
+			printk("%s(%d): Found cmdline '%s' at 0x%0lx\n",
+			       __FUNCTION__, __LINE__, p, (unsigned long)p);
+		}
+		/*
+		 * Many orion-based systems have buggy bootloader implementations.
+		 * This is a common fixup for bogus memory tags.
+		 */
+		if (t->hdr.tag == ATAG_MEM &&
+		    (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
+		     t->u.mem.start & ~PAGE_MASK)) {
+			printk(KERN_WARNING
+			       "Clearing invalid memory bank %dKB@0x%08x\n",
+			       t->u.mem.size / 1024, t->u.mem.start);
+			t->hdr.tag = 0;
+		}
+	}
+
+	printk("%s(%d): End of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+	/* Overwrite the end of the table with a new cmdline tag. */ 
+	t->hdr.tag = ATAG_CMDLINE;
+	t->hdr.size =
+		(sizeof (struct tag_header) +
+		 strlen(p) + strlen(openwrt_init_tag) + 1 + 4) >> 2;
+
+	strlcpy(t->u.cmdline.cmdline, p, COMMAND_LINE_SIZE);
+	strlcpy(t->u.cmdline.cmdline + strlen(p), openwrt_init_tag,
+		COMMAND_LINE_SIZE - strlen(p));
+
+	printk("%s(%d): New cmdline '%s' at 0x%0lx\n",
+	       __FUNCTION__, __LINE__,
+	       t->u.cmdline.cmdline, (unsigned long)t->u.cmdline.cmdline);
+
+	t = tag_next(t);
+
+	printk("%s(%d): New end of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+	t->hdr.tag = ATAG_NONE;
+	t->hdr.size = 0;
+}
+
+/* Warning: Freecom uses their own custom bootloader with mach-type (=1500) */
+MACHINE_START(DT2, "Freecom DataTank Gateway")
+	/* Maintainer: Zintis Petersons <Zintis.Petersons@abcsolutions.lv> */
+	.phys_io	= ORION5X_REGS_PHYS_BASE,
+	.io_pg_offst	= ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
+	.boot_params	= 0x00000100,
+	.init_machine	= dt2_init,
+	.map_io		= orion5x_map_io,
+	.init_irq	= orion5x_init_irq,
+	.timer		= &orion5x_timer,
+	.fixup		= openwrt_fixup, //tag_fixup_mem32,
+MACHINE_END
diff --git a/target/linux/orion/image/Makefile b/target/linux/orion/image/Makefile
index 0ca37678e..66edc0433 100644
--- a/target/linux/orion/image/Makefile
+++ b/target/linux/orion/image/Makefile
@@ -26,6 +26,13 @@ define Image/BuildKernel
 	-C none -a 0x00008000 -e 0x00008000 -n 'Linux-$(LINUX_VERSION)' \
 	-d $(KDIR)/wnr854t-zImage $(KDIR)/wnr854t-uImage
 	cp $(KDIR)/wnr854t-uImage $(BIN_DIR)/openwrt-wnr854t-uImage
+# DT2: mach id 1514 (0x5EA)
+	echo -en "\x05\x1c\xa0\xe3\xea\x10\x81\xe3" > $(KDIR)/dt2-zImage
+	cat $(LINUX_DIR)/arch/arm/boot/zImage >> $(KDIR)/dt2-zImage
+	$(STAGING_DIR_HOST)/bin/mkimage -A arm -O linux -T kernel \
+	-C none -a 0x00008000 -e 0x00008000 -n 'Linux-$(LINUX_VERSION)' \
+	-d $(KDIR)/dt2-zImage $(KDIR)/dt2-uImage
+	cp $(KDIR)/dt2-uImage $(BIN_DIR)/openwrt-dt2-uImage
 endef
 
 define Image/Build/Netgear
@@ -44,10 +51,21 @@ define Image/Build/Linksys
 # placeholder for the WRT350N v2
 endef
 
+define Image/Build/Freecom
+	$(INSTALL_DIR) $(TARGET_DIR)/boot
+	# TODO: Add special CMDLINE shim for webupgrade image here
+	$(CP) $(KDIR)/dt2-uImage $(TARGET_DIR)/boot/uImage
+	rm -rf $(TARGET_DIR)/{var,jffs,rom}
+	$(INSTALL_DIR) $(TARGET_DIR)/var
+	$(TAR) cfj $(BIN_DIR)/openwrt-$(2)-$(1).img --owner=root --group=root -C $(TARGET_DIR)/ .
+	$(STAGING_DIR_HOST)/bin/encode_crc $(BIN_DIR)/openwrt-$(2)-$(1).img $(BIN_DIR)/openwrt-$(2)-$(1)-webupgrade.img $(3)
+endef
+
 define Image/Build
 	$(call Image/Build/$(1),$(1))
 	$(call Image/Build/Netgear,$(1),wnr854t,NG_WNR854T,$(1))
 	$(call Image/Build/Linksys,$(1),wrt350nv2,WNR350Nv2,$(1))
+	$(call Image/Build/Freecom,$(1),dt2,DT,$(1))
 endef
 
 define Image/Build/squashfs
diff --git a/target/linux/orion/patches/200-dt2_board_support.patch b/target/linux/orion/patches/200-dt2_board_support.patch
new file mode 100644
index 000000000..bf82ed760
--- /dev/null
+++ b/target/linux/orion/patches/200-dt2_board_support.patch
@@ -0,0 +1,26 @@
+diff -ruN linux-2.6.28.5.orig/arch/arm/mach-orion5x/Kconfig linux-2.6.28.5/arch/arm/mach-orion5x/Kconfig
+--- linux-2.6.28.5.orig/arch/arm/mach-orion5x/Kconfig	2009-02-21 00:41:27.000000000 +0200
++++ linux-2.6.28.5/arch/arm/mach-orion5x/Kconfig	2009-02-28 10:06:24.000000000 +0200
+@@ -16,6 +16,13 @@
+ 	  Say 'Y' here if you want your kernel to support the
+ 	  Marvell Orion-NAS (88F5182) RD2
+ 
++config MACH_DT2
++	bool "Freecom DataTank Gateway"
++	select I2C_BOARDINFO
++	help
++	  Say 'Y' here if you want your kernel to support the
++	  Freecom DataTank Gateway
++
+ config MACH_KUROBOX_PRO
+ 	bool "KuroBox Pro"
+ 	select I2C_BOARDINFO
+diff -ruN linux-2.6.28.5.orig/arch/arm/mach-orion5x/Makefile linux-2.6.28.5/arch/arm/mach-orion5x/Makefile
+--- linux-2.6.28.5.orig/arch/arm/mach-orion5x/Makefile	2009-02-21 00:41:27.000000000 +0200
++++ linux-2.6.28.5/arch/arm/mach-orion5x/Makefile	2009-02-28 10:07:35.000000000 +0200
+@@ -17,3 +17,4 @@
+ obj-$(CONFIG_MACH_RD88F5181L_GE)	+= rd88f5181l-ge-setup.o
+ obj-$(CONFIG_MACH_RD88F5181L_FXO)	+= rd88f5181l-fxo-setup.o
+ obj-$(CONFIG_MACH_RD88F6183AP_GE)	+= rd88f6183ap-ge-setup.o
++obj-$(CONFIG_MACH_DT2)		+= dt2-setup.o
+