orion: Add support for 4.4 kernel

Patches and configuration apply just fine on the Marvell Orion target.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

4 files changed, 702 insertions, 0 deletions

diff --git a/target/linux/orion/patches-4.4/100-wrt350nv2_openwrt_partition_map.patch b/target/linux/orion/patches-4.4/100-wrt350nv2_openwrt_partition_map.patch
new file mode 100644
index 0000000000..89c2c9420b
--- /dev/null
+++ b/target/linux/orion/patches-4.4/100-wrt350nv2_openwrt_partition_map.patch
@@ -0,0 +1,32 @@
+--- a/arch/arm/mach-orion5x/wrt350n-v2-setup.c
++++ b/arch/arm/mach-orion5x/wrt350n-v2-setup.c
+@@ -134,11 +134,11 @@ static struct mtd_partition wrt350n_v2_n
+ 	{
+ 		.name		= "kernel",
+ 		.offset		= 0x00000000,
+-		.size		= 0x00760000,
++		.size		= 0x00140000,	// change to kernel mtd size here (1/3)
+ 	}, {
+ 		.name		= "rootfs",
+-		.offset		= 0x001a0000,
+-		.size		= 0x005c0000,
++		.offset		= 0x00140000,	// change to kernel mtd size here (2/3)
++		.size		= 0x00610000,	// adopt to kernel mtd size here (3/3) = 0x00750000 - <kernel mtd size>
+ 	}, {
+ 		.name		= "lang",
+ 		.offset		= 0x00760000,
+@@ -151,6 +151,14 @@ static struct mtd_partition wrt350n_v2_n
+ 		.name		= "u-boot",
+ 		.offset		= 0x007c0000,
+ 		.size		= 0x00040000,
++	}, {
++		.name		= "eRcOmM_do_not_touch",
++		.offset		= 0x00750000,
++		.size		= 0x00010000,	// erasesize
++	}, {
++		.name		= "image",	// for sysupgrade
++		.offset		= 0x00000000,
++		.size		= 0x00750000,
+ 	},
+ };
+ 
diff --git a/target/linux/orion/patches-4.4/101-wnr854t_partition_map.patch b/target/linux/orion/patches-4.4/101-wnr854t_partition_map.patch
new file mode 100644
index 0000000000..881cfb773e
--- /dev/null
+++ b/target/linux/orion/patches-4.4/101-wnr854t_partition_map.patch
@@ -0,0 +1,25 @@
+--- a/arch/arm/mach-orion5x/wnr854t-setup.c
++++ b/arch/arm/mach-orion5x/wnr854t-setup.c
+@@ -57,15 +57,19 @@ static struct mtd_partition wnr854t_nor_
+ 	{
+ 		.name		= "kernel",
+ 		.offset		= 0x00000000,
+-		.size		= 0x00100000,
++		.size		= 0x00140000,
+ 	}, {
+ 		.name		= "rootfs",
+-		.offset		= 0x00100000,
+-		.size		= 0x00660000,
++		.offset		= 0x00140000,
++		.size		= 0x00620000,
+ 	}, {
+ 		.name		= "uboot",
+ 		.offset		= 0x00760000,
+ 		.size		= 0x00040000,
++	}, {
++		.name		= "image",	// for sysupgrade
++		.offset		= 0x00000000,
++		.size		= 0x00760000,
+ 	},
+ };
+ 
diff --git a/target/linux/orion/patches-4.4/200-dt2_board_support.patch b/target/linux/orion/patches-4.4/200-dt2_board_support.patch
new file mode 100644
index 0000000000..3d2efffe68
--- /dev/null
+++ b/target/linux/orion/patches-4.4/200-dt2_board_support.patch
@@ -0,0 +1,570 @@
+Index: linux-3.18.43/arch/arm/mach-orion5x/Kconfig
+===================================================================
+--- linux-3.18.43.orig/arch/arm/mach-orion5x/Kconfig
++++ linux-3.18.43/arch/arm/mach-orion5x/Kconfig
+@@ -36,6 +36,13 @@ config MACH_RD88F5182_DT
+ 	  Say 'Y' here if you want your kernel to support the Marvell
+ 	  Orion-NAS (88F5182) RD2, Flattened Device Tree.
+ 
++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
+Index: linux-3.18.43/arch/arm/mach-orion5x/Makefile
+===================================================================
+--- linux-3.18.43.orig/arch/arm/mach-orion5x/Makefile
++++ linux-3.18.43/arch/arm/mach-orion5x/Makefile
+@@ -14,6 +14,7 @@ obj-$(CONFIG_MACH_TS78XX)	+= ts78xx-setu
+ obj-$(CONFIG_MACH_MV2120)	+= mv2120-setup.o
+ obj-$(CONFIG_MACH_NET2BIG)	+= net2big-setup.o
+ obj-$(CONFIG_MACH_WNR854T)	+= wnr854t-setup.o
++obj-$(CONFIG_MACH_DT2)		+= dt2-setup.o
+ obj-$(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
+Index: linux-3.18.43/arch/arm/mach-orion5x/dt2-common.h
+===================================================================
+--- /dev/null
++++ linux-3.18.43/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
+Index: linux-3.18.43/arch/arm/mach-orion5x/dt2-setup.c
+===================================================================
+--- /dev/null
++++ linux-3.18.43/arch/arm/mach-orion5x/dt2-setup.c
+@@ -0,0 +1,448 @@
++/*
++ * 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/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);
++			irq_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 "
++					"irq_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);
++			irq_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 "
++					"irq_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(const 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,
++	.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_chip_data dt2_switch_chip_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",
++};
++
++static struct dsa_platform_data dt2_switch_plat_data = {
++	.nr_chips	= 1,
++	.chip		= &dt2_switch_chip_data,
++};
++
++/*****************************************************************************
++ * 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 unsigned int dt2_mpp_modes[] __initdata = {
++	MPP0_GPIO,		// RTC interrupt
++	MPP1_GPIO,		// 88e6131 interrupt
++	MPP2_GPIO,		// PCI_intB
++	MPP3_GPIO,		// PCI_intA
++	MPP4_GPIO,		// reset button switch
++	MPP5_GPIO,
++	MPP6_GPIO,
++	MPP7_GPIO,
++	MPP8_GPIO,
++	MPP9_GIGE,		/* GE_RXERR */
++	MPP10_GPIO,		// usb
++	MPP11_GPIO,		// usb
++	MPP12_GIGE,		// GE_TXD[4]
++	MPP13_GIGE,		// GE_TXD[5]
++	MPP14_GIGE,		// GE_TXD[6]
++	MPP15_GIGE,		// GE_TXD[7]
++	MPP16_GIGE,		// GE_RXD[4]
++	MPP17_GIGE,		// GE_RXD[5]
++	MPP18_GIGE,		// GE_RXD[6]
++	MPP19_GIGE,		// GE_RXD[7]
++	0,
++};
++
++/*****************************************************************************
++ * 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)
++{
++	/*
++	 * Setup basic Orion functions. Need to be called early.
++	 */
++	orion5x_init();
++
++	orion5x_mpp_conf(dt2_mpp_modes);
++
++	/*
++	 * Configure peripherals.
++	 */
++
++	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 %pM for port 0\n",
++	       dt2_eeprom.gw.mac_addr[0]);
++	printk(KERN_INFO "DT2: Using MAC address %pM for port 1\n",
++	       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_plat_data, NO_IRQ);
++
++	i2c_register_board_info(0, &dt2_i2c_rtc, 1);
++
++	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
++				    ORION_MBUS_DEVBUS_BOOT_ATTR,
++				    DT2_NOR_BOOT_BASE, DT2_NOR_BOOT_SIZE);
++
++	platform_device_register(&dt2_nor_flash);
++
++	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(0),
++				    ORION_MBUS_DEVBUS_ATTR(0),
++				    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_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_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.
++ */
++static void __init openwrt_fixup(struct tag *t, char **from)
++{
++	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> */
++	.atag_offset    = 0x100,
++	.init_machine	= dt2_init,
++	.map_io		= orion5x_map_io,
++	.init_irq	= orion5x_init_irq,
++	.init_time	= orion5x_timer_init,
++	.fixup		= openwrt_fixup, //tag_fixup_mem32,
++MACHINE_END
diff --git a/target/linux/orion/patches-4.4/210-wn802t_support.patch b/target/linux/orion/patches-4.4/210-wn802t_support.patch
new file mode 100644
index 0000000000..e7827edd29
--- /dev/null
+++ b/target/linux/orion/patches-4.4/210-wn802t_support.patch
@@ -0,0 +1,75 @@
+--- a/arch/arm/mach-orion5x/Kconfig
++++ b/arch/arm/mach-orion5x/Kconfig
+@@ -147,10 +147,13 @@ config MACH_MSS2_DT
+ 	  Maxtor Shared Storage II platform.
+ 
+ config MACH_WNR854T
+-	bool "Netgear WNR854T"
++	bool "Netgear WNR854T / WN802T"
+ 	help
+ 	  Say 'Y' here if you want your kernel to support the
+-	  Netgear WNR854T platform.
++	  Netgear WNR854T or WN802T platform.
++
++config MACH_WN802T
++	def_bool MACH_WNR854T
+ 
+ config MACH_RD88F5181L_GE
+ 	bool "Marvell Orion-VoIP GE Reference Design"
+--- a/arch/arm/mach-orion5x/wnr854t-setup.c
++++ b/arch/arm/mach-orion5x/wnr854t-setup.c
+@@ -115,6 +115,15 @@ static struct dsa_platform_data wnr854t_
+ 	.chip		= &wnr854t_switch_chip_data,
+ };
+ 
++static struct dsa_chip_data wn802t_switch_chip_data = {
++	.port_names[2] = "wan",
++	.port_names[3] = "cpu",
++};
++
++static struct dsa_platform_data wn802t_switch_plat_data = {
++	.nr_chips	= 1,
++	.chip		= &wn802t_switch_chip_data,
++};
+ static void __init wnr854t_init(void)
+ {
+ 	/*
+@@ -128,7 +137,12 @@ static void __init wnr854t_init(void)
+ 	 * Configure peripherals.
+ 	 */
+ 	orion5x_eth_init(&wnr854t_eth_data);
+-	orion5x_eth_switch_init(&wnr854t_switch_plat_data, NO_IRQ);
++
++	if (machine_is_wn802t())
++		orion5x_eth_switch_init(&wn802t_switch_plat_data, NO_IRQ);
++	else
++		orion5x_eth_switch_init(&wnr854t_switch_plat_data, NO_IRQ);
++
+ 	orion5x_uart0_init();
+ 
+ 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+@@ -168,7 +182,7 @@ static struct hw_pci wnr854t_pci __initd
+ 
+ static int __init wnr854t_pci_init(void)
+ {
+-	if (machine_is_wnr854t())
++	if (machine_is_wnr854t() || machine_is_wn802t())
+ 		pci_common_init(&wnr854t_pci);
+ 
+ 	return 0;
+@@ -186,3 +200,15 @@ MACHINE_START(WNR854T, "Netgear WNR854T"
+ 	.fixup		= tag_fixup_mem32,
+ 	.restart	= orion5x_restart,
+ MACHINE_END
++
++MACHINE_START(WN802T, "Netgear WN802T")
++	/* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
++	.atag_offset	= 0x100,
++	.init_machine	= wnr854t_init,
++	.map_io		= orion5x_map_io,
++	.init_early	= orion5x_init_early,
++	.init_irq	= orion5x_init_irq,
++	.init_time	= orion5x_timer_init,
++	.fixup		= tag_fixup_mem32,
++	.restart	= orion5x_restart,
++MACHINE_END