Merge pull request #67 from yeryomin/gemini

gemini: add 4.4 support

24 files changed, 6220 insertions, 0 deletions

diff --git a/target/linux/gemini/config-4.4 b/target/linux/gemini/config-4.4
new file mode 100644
index 0000000000..9572196ae8
--- /dev/null
+++ b/target/linux/gemini/config-4.4
@@ -0,0 +1,165 @@
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
+CONFIG_ARCH_GEMINI=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_USES_GETTIMEOFFSET=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARM=y
+# CONFIG_ARM_CPU_SUSPEND is not set
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_NR_BANKS=8
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+# CONFIG_ARPD is not set
+CONFIG_ATA=y
+CONFIG_ATAGS=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,jffs2 noinitrd console=ttyS0,19200 mem=32M"
+CONFIG_CMDLINE_FROM_BOOTLOADER=y
+CONFIG_CPU_32v4=y
+CONFIG_CPU_ABRT_EV4=y
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+CONFIG_CPU_CACHE_FA=y
+CONFIG_CPU_CACHE_VIVT=y
+CONFIG_CPU_COPY_FA=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
+CONFIG_CPU_FA526=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_PABRT_LEGACY=y
+CONFIG_CPU_TLB_FA=y
+CONFIG_CPU_USE_DOMAINS=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+# CONFIG_DEBUG_USER is not set
+CONFIG_DEBUG_UART_PHYS=0x42000000
+CONFIG_DEBUG_UART_VIRT=0xf4200000
+CONFIG_DEBUG_UART_8250_SHIFT=2
+# CONFIG_DEBUG_UART_8250_WORD is not set
+# CONFIG_DEBUG_UART_8250_FLOW_CONTROL is not set
+# CONFIG_DLCI is not set
+CONFIG_DMADEVICES=y
+CONFIG_DNOTIFY=y
+# CONFIG_DW_DMAC_CORE is not set
+# CONFIG_DW_DMAC_PCI is not set
+CONFIG_FRAME_POINTER=y
+CONFIG_GEMINI_MEM_SWAP=y
+CONFIG_GEMINI_SL351X=y
+CONFIG_GEMINI_WATCHDOG=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_BPF_JIT=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_GENERIC_HARDIRQS=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_HAVE_KERNEL_LZO=y
+CONFIG_HAVE_KERNEL_XZ=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_UID16=y
+# CONFIG_HSU_DMA_PCI is not set
+CONFIG_HWMON=y
+CONFIG_HW_RANDOM=y
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_IRQ_WORK=y
+CONFIG_KTIME_SCALAR=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_MACH_NAS4220B is not set
+# CONFIG_MACH_RUT100 is not set
+CONFIG_MACH_WBD111=y
+CONFIG_MACH_WBD222=y
+CONFIG_MDIO_BITBANG=y
+CONFIG_MDIO_BOARDINFO=y
+CONFIG_MDIO_GPIO=y
+CONFIG_MIGHT_HAVE_PCI=y
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_KUSER_HELPERS=y
+CONFIG_NEED_MACH_GPIO_H=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_VENDOR_GEMINI=y
+# CONFIG_OF is not set
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PATA_GEMINI=y
+CONFIG_PCI=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PHYLIB=y
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_RCU_STALL_COMMON is not set
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_GEMINI=y
+# CONFIG_SCHED_HRTICK is not set
+# CONFIG_SCSI_DMA is not set
+CONFIG_SPLIT_PTLOCK_CPUS=999999
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_UID16=y
+CONFIG_UIDGID_CONVERTED=y
+CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"
+CONFIG_USB_ARCH_HAS_XHCI=y
+CONFIG_USB_SUPPORT=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_WAN=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/gemini/files-4.4/arch/arm/mach-gemini/include/mach/gmac.h b/target/linux/gemini/files-4.4/arch/arm/mach-gemini/include/mach/gmac.h
new file mode 100644
index 0000000000..04ca5699fa
--- /dev/null
+++ b/target/linux/gemini/files-4.4/arch/arm/mach-gemini/include/mach/gmac.h
@@ -0,0 +1,21 @@
+/*
+ * Gemini GMAC specific defines
+ *
+ * Copyright (C) 2008, Paulius Zaleckas <paulius.zaleckas@gmail.com>
+ *
+ * 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.
+ */
+#ifndef __NET_GEMINI_PLATFORM_H__
+#define __NET_GEMINI_PLATFORM_H__
+
+#include <linux/phy.h>
+
+struct gemini_gmac_platform_data {
+	char *bus_id[2]; /* NULL means that this port is not used */
+	phy_interface_t interface[2];
+};
+
+#endif /* __NET_GEMINI_PLATFORM_H__ */
diff --git a/target/linux/gemini/files-4.4/arch/arm/mach-gemini/pci.c b/target/linux/gemini/files-4.4/arch/arm/mach-gemini/pci.c
new file mode 100644
index 0000000000..51cd44754c
--- /dev/null
+++ b/target/linux/gemini/files-4.4/arch/arm/mach-gemini/pci.c
@@ -0,0 +1,318 @@
+/*
+ *  Support for Gemini PCI Controller
+ *
+ *  Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
+ *  Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * based on SL2312 PCI controller code
+ *   Storlink (C) 2003
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <asm/mach/pci.h>
+
+#include <mach/irqs.h>
+#include <mach/hardware.h>
+
+#define GEMINI_PCI_IOSIZE_1M		0x0000
+
+#define GEMINI_PCI_PMC			0x40
+#define GEMINI_PCI_PMCSR		0x44
+#define GEMINI_PCI_CTRL1		0x48
+#define GEMINI_PCI_CTRL2		0x4C
+#define GEMINI_PCI_MEM1_BASE_SIZE	0x50
+#define GEMINI_PCI_MEM2_BASE_SIZE	0x54
+#define GEMINI_PCI_MEM3_BASE_SIZE	0x58
+
+#define PCI_CTRL2_INTSTS_OFFSET		28
+#define PCI_CTRL2_INTMASK_OFFSET	22
+
+#define GEMINI_PCI_DMA_MASK		0xFFF00000
+#define GEMINI_PCI_DMA_MEM1_BASE	0x00000000
+#define GEMINI_PCI_DMA_MEM2_BASE	0x00000000
+#define GEMINI_PCI_DMA_MEM3_BASE	0x00000000
+#define GEMINI_PCI_DMA_MEM1_SIZE	7
+#define GEMINI_PCI_DMA_MEM2_SIZE	6
+#define GEMINI_PCI_DMA_MEM3_SIZE	6
+
+#define PCI_CONF_ENABLE		(1 << 31)
+#define PCI_CONF_WHERE(r)	((r) & 0xFC)
+#define PCI_CONF_BUS(b)		(((b) & 0xFF) << 16)
+#define PCI_CONF_DEVICE(d)	(((d) & 0x1F) << 11)
+#define PCI_CONF_FUNCTION(f)	(((f) & 0x07) << 8)
+
+#define PCI_IOSIZE_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE))
+#define PCI_PROT_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE) + 0x04)
+#define PCI_CTRL_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE) + 0x08)
+#define PCI_SOFTRST_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE) + 0x10)
+#define PCI_CONFIG_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE) + 0x28)
+#define PCI_DATA_REG	(IO_ADDRESS(GEMINI_PCI_IO_BASE) + 0x2C)
+
+
+static DEFINE_SPINLOCK(gemini_pci_lock);
+
+static int gemini_pci_read_config(struct pci_bus* bus, unsigned int fn,
+				  int config, int size, u32* value)
+{
+	unsigned long irq_flags;
+
+	spin_lock_irqsave(&gemini_pci_lock, irq_flags);
+
+	__raw_writel(PCI_CONF_BUS(bus->number) |
+			PCI_CONF_DEVICE(PCI_SLOT(fn)) |
+			PCI_CONF_FUNCTION(PCI_FUNC(fn)) |
+			PCI_CONF_WHERE(config) |
+			PCI_CONF_ENABLE,
+			PCI_CONFIG_REG);
+
+	*value = __raw_readl(PCI_DATA_REG);
+
+	if (size == 1)
+		*value = (*value >> (8 * (config & 3))) & 0xFF;
+	else if (size == 2)
+		*value = (*value >> (8 * (config & 3))) & 0xFFFF;
+
+	spin_unlock_irqrestore(&gemini_pci_lock, irq_flags);
+
+	dev_dbg(&bus->dev,
+		"[read]  slt: %.2d, fnc: %d, cnf: 0x%.2X, val (%d bytes): 0x%.8X\n",
+		PCI_SLOT(fn), PCI_FUNC(fn), config, size, *value);
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int gemini_pci_write_config(struct pci_bus* bus, unsigned int fn,
+				   int config, int size, u32 value)
+{
+	unsigned long irq_flags = 0;
+	int ret = PCIBIOS_SUCCESSFUL;
+
+	dev_dbg(&bus->dev,
+		"[write] slt: %.2d, fnc: %d, cnf: 0x%.2X, val (%d bytes): 0x%.8X\n",
+		PCI_SLOT(fn), PCI_FUNC(fn), config, size, value);
+
+	spin_lock_irqsave(&gemini_pci_lock, irq_flags);
+
+	__raw_writel(PCI_CONF_BUS(bus->number) |
+			PCI_CONF_DEVICE(PCI_SLOT(fn)) |
+			PCI_CONF_FUNCTION(PCI_FUNC(fn)) |
+			PCI_CONF_WHERE(config) |
+			PCI_CONF_ENABLE,
+			PCI_CONFIG_REG);
+
+	switch(size) {
+	case 4:
+		__raw_writel(value, PCI_DATA_REG);
+		break;
+	case 2:
+		__raw_writew(value, PCI_DATA_REG + (config & 3));
+		break;
+	case 1:
+		__raw_writeb(value, PCI_DATA_REG + (config & 3));
+		break;
+	default:
+		ret = PCIBIOS_BAD_REGISTER_NUMBER;
+	}
+
+	spin_unlock_irqrestore(&gemini_pci_lock, irq_flags);
+
+	return ret;
+}
+
+static struct pci_ops gemini_pci_ops = {
+	.read	= gemini_pci_read_config,
+	.write	= gemini_pci_write_config,
+};
+
+static struct resource gemini_pci_resource_io = {
+	.name	= "PCI I/O Space",
+	.start	= GEMINI_PCI_IO_BASE,
+	.end	= GEMINI_PCI_IO_BASE + SZ_1M - 1,
+	.flags	= IORESOURCE_IO,
+};
+
+static struct resource gemini_pci_resource_mem = {
+	.name	= "PCI Memory Space",
+	.start	= GEMINI_PCI_MEM_BASE,
+	.end	= GEMINI_PCI_MEM_BASE + SZ_128M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static int __init gemini_pci_request_resources(struct pci_sys_data *sys)
+{
+	if (request_resource(&ioport_resource, &gemini_pci_resource_io))
+		goto bad_resources;
+	if (request_resource(&iomem_resource, &gemini_pci_resource_mem))
+		goto bad_resources;
+
+	pci_add_resource(&sys->resources, &gemini_pci_resource_io);
+	pci_add_resource(&sys->resources, &gemini_pci_resource_mem);
+
+	return 0;
+
+bad_resources:
+	pr_err("Gemini PCI: request_resource() failed. "
+			"Abort PCI bus enumeration.\n");
+	return -1;
+}
+
+static int __init gemini_pci_setup(int nr, struct pci_sys_data *sys)
+{
+	unsigned int cmd;
+
+	pcibios_min_io = 0x100;
+	pcibios_min_mem = 0;
+
+	if ((nr > 0) || gemini_pci_request_resources(sys))
+		return 0;
+
+	/* setup I/O space to 1MB size */
+	__raw_writel(GEMINI_PCI_IOSIZE_1M, PCI_IOSIZE_REG);
+
+	/* setup hostbridge */
+	cmd = __raw_readl(PCI_CTRL_REG);
+	cmd |= PCI_COMMAND_IO;
+	cmd |= PCI_COMMAND_MEMORY;
+	cmd |= PCI_COMMAND_MASTER;
+	__raw_writel(cmd, PCI_CTRL_REG);
+
+	return 1;
+}
+
+static struct pci_bus* __init gemini_pci_scan_bus(int nr, struct pci_sys_data* sys)
+{
+	unsigned int reg = 0;
+	struct pci_bus* bus = 0;
+
+	bus = pci_scan_bus(nr, &gemini_pci_ops, sys);
+	if (bus) {
+		dev_dbg(&bus->dev, "setting up PCI DMA\n");
+		reg = (GEMINI_PCI_DMA_MEM1_BASE & GEMINI_PCI_DMA_MASK)
+			| (GEMINI_PCI_DMA_MEM1_SIZE << 16);
+		gemini_pci_write_config(bus, 0, GEMINI_PCI_MEM1_BASE_SIZE, 4, reg);
+		reg =	(GEMINI_PCI_DMA_MEM2_BASE & GEMINI_PCI_DMA_MASK)
+			| (GEMINI_PCI_DMA_MEM2_SIZE << 16);
+		gemini_pci_write_config(bus, 0, GEMINI_PCI_MEM2_BASE_SIZE, 4, reg);
+		reg = (GEMINI_PCI_DMA_MEM3_BASE & GEMINI_PCI_DMA_MASK)
+			| (GEMINI_PCI_DMA_MEM3_SIZE << 16);
+		gemini_pci_write_config(bus, 0, GEMINI_PCI_MEM3_BASE_SIZE, 4, reg);
+	}
+
+	return bus;
+}
+
+/* Should work with all boards based on original Storlink EVB */
+static int __init gemini_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (slot < 9 || slot > 12)
+		return -1;
+
+	return PCI_IRQ_BASE + (((slot - 9) + (pin - 1)) & 0x3);
+}
+
+static struct hw_pci gemini_hw_pci __initdata = {
+	.nr_controllers	= 1,
+	.setup		= gemini_pci_setup,
+	.scan           = gemini_pci_scan_bus,
+	.map_irq	= gemini_pci_map_irq,
+};
+
+/* we need this for muxed PCI interrupts handling */
+static struct pci_bus bogus_pci_bus;
+
+static void gemini_pci_ack_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned int reg;
+
+	gemini_pci_read_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, &reg);
+	reg &= ~(0xF << PCI_CTRL2_INTSTS_OFFSET);
+	reg |= 1 << (irq - PCI_IRQ_BASE + PCI_CTRL2_INTSTS_OFFSET);
+	gemini_pci_write_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, reg);
+}
+
+static void gemini_pci_mask_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned int reg;
+
+	gemini_pci_read_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, &reg);
+	reg &= ~((0xF << PCI_CTRL2_INTSTS_OFFSET)
+		| (1 << (irq - PCI_IRQ_BASE + PCI_CTRL2_INTMASK_OFFSET)));
+	gemini_pci_write_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, reg);
+}
+
+static void gemini_pci_unmask_irq(struct irq_data *d)
+{
+	unsigned int irq = d->irq;
+	unsigned int reg;
+
+	gemini_pci_read_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, &reg);
+	reg &= ~(0xF << PCI_CTRL2_INTSTS_OFFSET);
+	reg |= 1 << (irq - PCI_IRQ_BASE + PCI_CTRL2_INTMASK_OFFSET);
+	gemini_pci_write_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, reg);
+}
+
+static void gemini_pci_irq_handler(struct irq_desc *desc)
+{
+	unsigned int pci_irq_no, irq_stat, reg, i;
+
+	gemini_pci_read_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2, 4, &reg);
+	irq_stat = reg >> PCI_CTRL2_INTSTS_OFFSET;
+
+	for (i = 0; i < 4; i++) {
+
+		if ((irq_stat & (1 << i)) == 0)
+			continue;
+
+		pci_irq_no = PCI_IRQ_BASE + i;
+
+		BUG_ON(!(irq_desc[pci_irq_no].handle_irq));
+		irq_desc[pci_irq_no].handle_irq(&irq_desc[pci_irq_no]);
+	}
+}
+
+static struct irq_chip gemini_pci_irq_chip = {
+	.name = "PCI",
+	.irq_ack = gemini_pci_ack_irq,
+	.irq_mask = gemini_pci_mask_irq,
+	.irq_unmask = gemini_pci_unmask_irq,
+};
+
+static int __init gemini_pci_init(void)
+{
+	int i;
+
+	for (i = 72; i <= 95; i++)
+		gpio_request(i, "PCI");
+
+	/* initialize our bogus bus */
+	dev_set_name(&bogus_pci_bus.dev, "PCI IRQ handler");
+	bogus_pci_bus.number = 0;
+
+	/* mask and clear all interrupts */
+	gemini_pci_write_config(&bogus_pci_bus, 0, GEMINI_PCI_CTRL2 + 2, 2,
+				0xF000);
+
+	for (i = PCI_IRQ_BASE; i < PCI_IRQ_BASE + 4; i++) {
+		irq_set_chip_and_handler(i, &gemini_pci_irq_chip,
+					 handle_level_irq);
+	}
+
+	irq_set_chained_handler(IRQ_PCI, gemini_pci_irq_handler);
+
+	pci_common_init(&gemini_hw_pci);
+
+	return 0;
+}
+
+subsys_initcall(gemini_pci_init);
diff --git a/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c b/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c
new file mode 100644
index 0000000000..707e8703bf
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/ata/pata_gemini.c
@@ -0,0 +1,234 @@
+/*
+ *  Support for Gemini PATA
+ *
+ *  Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
+ *  Copyright (C) 2010 Frederic Pecourt <opengemini@free.fr>
+ *  Copyright (C) 2011 Tobias Waldvogel <tobias.waldvogel@gmail.com>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Values of IOMUX
+ * 26:24 bits is "IDE IO Select"
+ * 111:100 - Reserved
+ * 011 - ata0 <-> sata0, sata1; bring out ata1
+ * 010 - ata1 <-> sata1, sata0; bring out ata0
+ * 001 - ata0 <-> sata0, ata1 <-> sata1; bring out ata1
+ * 000 - ata0 <-> sata0, ata1 <-> sata1; bring out ata0
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/libata.h>
+#include <linux/leds.h>
+
+#include <mach/hardware.h>
+#include <mach/global_reg.h>
+
+#define DRV_NAME		"pata-gemini"
+
+#define PATA_GEMINI_PORTS	1
+
+#define PIO_TIMING_REG		0x10
+#define MDMA_TIMING_REG		0x11
+#define UDMA_TIMING0_REG	0x12
+#define UDMA_TIMING1_REG	0x13
+#define CLK_MOD_REG		0x14
+
+#define CLK_MOD_66M_DEV0_BIT	0
+#define CLK_MOD_66M_DEV1_BIT	1
+#define CLK_MOD_UDMA_DEV0_BIT	4
+#define CLK_MOD_UDMA_DEV1_BIT	5
+
+#define CLK_MOD_66M_DEV0	(1 << CLK_MOD_66M_DEV0_BIT)
+#define CLK_MOD_66M_DEV1	(1 << CLK_MOD_66M_DEV1_BIT)
+#define CLK_MOD_UDMA_DEV0	(1 << CLK_MOD_UDMA_DEV0_BIT)
+#define CLK_MOD_UDMA_DEV1	(1 << CLK_MOD_UDMA_DEV1_BIT)
+
+#define SATA_ENABLE_PDEV_MASK		0x01
+#define SATA_ENABLE_PDEV_PM		0x02
+#define SATA_ENABLE_PDEV_ADDED		0x04
+#define SATA_ENABLE_PDEV_REMOVED	0x08
+#define SATA_ENABLE_SDEV_MASK		0x10
+#define SATA_ENABLE_SDEV_PM		0x20
+#define SATA_ENABLE_SDEV_ADDED		0x40
+#define SATA_ENABLE_SDEV_REMOVED	0x80
+
+MODULE_AUTHOR("Janos Laube <janos.dev@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+
+static unsigned char PIO_TIMING[5] = {
+	0xaa, 0xa3, 0xa1, 0x33, 0x31
+};
+
+static unsigned char TIMING_MW_DMA[4][2] = {
+	{ 0x44, 1 }, // 480        4.2
+	{ 0x42, 1 }, // 150       13.3
+	{ 0x31, 1 }, // 120       16.7
+	{ 0x21, 1 }, // 100       20
+};
+
+static unsigned char TIMING_UDMA[7][2] = {
+	{ 0x33, 0 }, //240        16.7
+	{ 0x31, 0 }, //160        25
+	{ 0x21, 0 }, //120        33.3
+	{ 0x21, 1 }, //90         44.4
+	{ 0x11, 1 }, //60         66.7
+	{ 0x11 | 0x80, 0 }, //40  100
+	{ 0x11 | 0x80, 1 }, //30  133
+};
+
+static struct scsi_host_template pata_gemini_sht = {
+	ATA_NCQ_SHT(DRV_NAME),
+	.can_queue	= 1,
+	.sg_tablesize	= 128,
+	.dma_boundary	= 0xffffU,
+};
+
+static void gemini_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+	void __iomem *clk_reg	= ap->ioaddr.bmdma_addr + CLK_MOD_REG;
+	void __iomem *tim_reg	= ap->ioaddr.bmdma_addr + UDMA_TIMING0_REG;
+	unsigned short udma	= adev->dma_mode;
+	unsigned short speed	= udma;
+	unsigned short devno	= adev->devno & 1;
+	unsigned short i;
+	u8 mod_udma_mask	= 1 << (CLK_MOD_UDMA_DEV0_BIT + devno);
+	u8 mod_66m_mask		= 1 << (CLK_MOD_66M_DEV0_BIT + devno);
+	u8 clk_mod;
+	u8 timing;
+
+	clk_mod = ioread8(clk_reg);
+	clk_mod &= ~mod_udma_mask;
+
+	if (speed & XFER_UDMA_0) {
+		i = speed & ~XFER_UDMA_0;
+		timing = TIMING_UDMA[i][0];
+		clk_mod |= mod_udma_mask;
+		if (TIMING_UDMA[i][1])
+			clk_mod |= mod_66m_mask;
+	} else {
+		i = speed & ~XFER_MW_DMA_0;
+		timing = TIMING_MW_DMA[i][0];
+		clk_mod |= mod_udma_mask;
+		if (TIMING_MW_DMA[i][1])
+			clk_mod |= mod_66m_mask;
+	}
+
+	iowrite8(clk_mod, clk_reg);
+	iowrite8(timing, tim_reg + devno);
+	return;
+}
+
+static void gemini_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+	void __iomem *pio_reg	= ap->ioaddr.bmdma_addr + PIO_TIMING_REG;
+	unsigned int pio	= adev->pio_mode - XFER_PIO_0;
+
+	iowrite8(PIO_TIMING[pio], pio_reg);
+}
+
+unsigned int gemini_qc_issue(struct ata_queued_cmd *qc)
+{
+	ledtrig_ide_activity();
+	return ata_bmdma_qc_issue(qc);
+}
+
+static struct ata_port_operations pata_gemini_port_ops = {
+	.inherits	= &ata_bmdma_port_ops,
+	.set_dmamode	= gemini_set_dmamode,
+	.set_piomode	= gemini_set_piomode,
+	.qc_issue	= gemini_qc_issue,
+};
+
+static struct ata_port_info pata_gemini_portinfo = {
+	.flags		= 0,
+	.udma_mask	= ATA_UDMA6,
+	.pio_mask	= ATA_PIO4,
+	.port_ops	= &pata_gemini_port_ops,
+};
+
+static const struct ata_port_info *pata_gemini_ports = &pata_gemini_portinfo;
+
+static int pata_gemini_probe(struct platform_device *pdev)
+{
+	struct ata_host *host;
+	struct resource *res;
+	unsigned int irq, i;
+	void __iomem *mmio_base;
+
+	/* standard bdma init */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENODEV;
+
+	pr_info(DRV_NAME ": irq %d, io base 0x%08x\n", irq, res->start);
+
+	mmio_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+
+	host = ata_host_alloc_pinfo(&pdev->dev, &pata_gemini_ports, 1);
+	if (!host)
+		return -ENOMEM;
+
+	for (i = 0; i < host->n_ports; i++) {
+		struct ata_port *ap = host->ports[i];
+		struct ata_ioports *ioaddr = &ap->ioaddr;
+
+		ioaddr->bmdma_addr		= mmio_base;
+		ioaddr->cmd_addr		= mmio_base + 0x20;
+		ioaddr->ctl_addr		= mmio_base + 0x36;
+		ioaddr->altstatus_addr		= ioaddr->ctl_addr;
+		ata_sff_std_ports(ioaddr);
+		host->ports[i]->cbl = ATA_CBL_SATA;
+	}
+
+	return ata_host_activate(host, irq, ata_bmdma_interrupt,
+		IRQF_SHARED, &pata_gemini_sht);
+}
+
+static int pata_gemini_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ata_host *host = dev_get_drvdata(dev);
+	ata_host_detach(host);
+	return 0;
+}
+
+static struct platform_driver pata_gemini_driver = {
+	.probe		= pata_gemini_probe,
+	.remove		= pata_gemini_remove,
+	.driver.owner	= THIS_MODULE,
+	.driver.name	= DRV_NAME,
+};
+
+static int __init pata_gemini_module_init(void)
+{
+	return platform_driver_probe(&pata_gemini_driver, pata_gemini_probe);
+}
+
+static void __exit pata_gemini_module_exit(void)
+{
+	platform_driver_unregister(&pata_gemini_driver);
+}
+
+module_init(pata_gemini_module_init);
+module_exit(pata_gemini_module_exit);
diff --git a/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Kconfig b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Kconfig
new file mode 100644
index 0000000000..12d58163d0
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Kconfig
@@ -0,0 +1,31 @@
+#
+# Gemini device configuration
+#
+
+config NET_VENDOR_GEMINI
+	bool "Cortina Gemini devices"
+	default y
+	depends on ARCH_GEMINI
+	---help---
+	  If you have a network (Ethernet) card belonging to this class, say Y
+	  and read the Ethernet-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about D-Link devices. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_GEMINI
+
+config GEMINI_SL351X
+	tristate "StorLink SL351x Gigabit Ethernet support"
+	depends on ARCH_GEMINI
+	select PHYLIB
+	select MDIO_BITBANG
+	select MDIO_GPIO
+	select CRC32
+	---help---
+	  This driver supports StorLink SL351x (Gemini) dual Gigabit Ethernet.
+
+endif # NET_VENDOR_GEMINI
diff --git a/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Makefile b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Makefile
new file mode 100644
index 0000000000..3a1987c4fa
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Cortina Gemini network device drivers.
+#
+
+obj-$(CONFIG_GEMINI_SL351X) += sl351x.o
diff --git a/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x.c b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x.c
new file mode 100644
index 0000000000..83455c4003
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x.c
@@ -0,0 +1,2340 @@
+/*
+ *  Ethernet device driver for Gemini SoC (SL351x GMAC).
+ *
+ *  Copyright (C) 2011, Tobias Waldvogel <tobias.waldvogel@gmail.com>
+ *
+ *  Based on work by Michał Mirosław <mirq-linux@rere.qmqm.pl> and
+ *  Paulius Zaleckas <paulius.zaleckas@gmail.com> and
+ *  Giuseppe De Robertis <Giuseppe.DeRobertis@ba.infn.it> and
+ *  GPLd spaghetti code from Raidsonic and other Gemini-based NAS vendors.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/cache.h>
+#include <linux/interrupt.h>
+
+#include <linux/platform_device.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/skbuff.h>
+#include <linux/phy.h>
+#include <linux/crc32.h>
+#include <linux/ethtool.h>
+#include <linux/tcp.h>
+#include <linux/u64_stats_sync.h>
+
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+#include <mach/hardware.h>
+#include <mach/global_reg.h>
+
+#include <mach/gmac.h>
+#include "sl351x_hw.h"
+
+#define DRV_NAME		"gmac-gemini"
+#define DRV_VERSION		"1.0"
+
+#define HSIZE_8			0b00
+#define HSIZE_16		0b01
+#define HSIZE_32		0b10
+
+#define HBURST_SINGLE		0b00
+#define HBURST_INCR		0b01
+#define HBURST_INCR4		0b10
+#define HBURST_INCR8		0b11
+
+#define HPROT_DATA_CACHE	BIT(0)
+#define HPROT_PRIVILIGED	BIT(1)
+#define HPROT_BUFFERABLE	BIT(2)
+#define HPROT_CACHABLE		BIT(3)
+
+#define DEFAULT_RX_COALESCE_NSECS	0
+#define DEFAULT_GMAC_RXQ_ORDER		9
+#define DEFAULT_GMAC_TXQ_ORDER		8
+#define DEFAULT_RX_BUF_ORDER		11
+#define DEFAULT_NAPI_WEIGHT		64
+#define TX_MAX_FRAGS			16
+#define TX_QUEUE_NUM			1	/* max: 6 */
+#define RX_MAX_ALLOC_ORDER		2
+
+#define GMAC0_IRQ0_2 (GMAC0_TXDERR_INT_BIT|GMAC0_TXPERR_INT_BIT| \
+	GMAC0_RXDERR_INT_BIT|GMAC0_RXPERR_INT_BIT)
+#define GMAC0_IRQ0_TXQ0_INTS (GMAC0_SWTQ00_EOF_INT_BIT| \
+			      GMAC0_SWTQ00_FIN_INT_BIT)
+#define GMAC0_IRQ4_8 (GMAC0_MIB_INT_BIT|GMAC0_RX_OVERRUN_INT_BIT)
+
+#define GMAC_OFFLOAD_FEATURES (NETIF_F_SG | NETIF_F_IP_CSUM | \
+		NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | \
+		NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6)
+
+MODULE_AUTHOR("Tobias Waldvogel");
+MODULE_DESCRIPTION("StorLink SL351x (Gemini) ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+
+struct toe_private {
+	void __iomem	*iomem;
+	spinlock_t	irq_lock;
+
+	struct net_device *netdev[2];
+	__le32		mac_addr[2][3];
+
+	struct device	*dev;
+	int		irq;
+
+	unsigned int	freeq_order;
+	unsigned int	freeq_frag_order;
+	GMAC_RXDESC_T	*freeq_ring;
+	dma_addr_t	freeq_dma_base;
+	struct page	**freeq_page_tab;
+	spinlock_t	freeq_lock;
+};
+
+struct gmac_txq {
+	GMAC_TXDESC_T	*ring;
+	struct sk_buff	**skb;
+	unsigned int	cptr;
+	unsigned int	noirq_packets;
+};
+
+struct gmac_private {
+	unsigned int		num;
+	struct toe_private	*toe;
+	void __iomem		*ctl_iomem;
+	void __iomem		*dma_iomem;
+
+	void __iomem		*rxq_rwptr;
+	GMAC_RXDESC_T		*rxq_ring;
+	unsigned int		rxq_order;
+
+	struct napi_struct	napi;
+	struct hrtimer		rx_coalesce_timer;
+	unsigned int 		rx_coalesce_nsecs; 
+	unsigned int		freeq_refill;
+	struct gmac_txq		txq[TX_QUEUE_NUM];
+	unsigned int		txq_order;
+	unsigned int		irq_every_tx_packets;
+
+	dma_addr_t		rxq_dma_base;
+	dma_addr_t		txq_dma_base;
+
+	unsigned int		msg_enable;
+	spinlock_t		config_lock;
+
+	struct u64_stats_sync	tx_stats_syncp;
+	struct u64_stats_sync	rx_stats_syncp;
+	struct u64_stats_sync	ir_stats_syncp;
+
+	struct rtnl_link_stats64 stats;
+	u64			hw_stats[RX_STATS_NUM];
+	u64			rx_stats[RX_STATUS_NUM];
+	u64			rx_csum_stats[RX_CHKSUM_NUM];
+	u64			rx_napi_exits;
+	u64			tx_frag_stats[TX_MAX_FRAGS];
+	u64			tx_frags_linearized;
+	u64			tx_hw_csummed;
+};
+
+#define GMAC_STATS_NUM	( \
+	RX_STATS_NUM + RX_STATUS_NUM + RX_CHKSUM_NUM + 1 + \
+	TX_MAX_FRAGS + 2)
+
+static const char gmac_stats_strings[GMAC_STATS_NUM][ETH_GSTRING_LEN] = {
+	"GMAC_IN_DISCARDS",
+	"GMAC_IN_ERRORS",
+	"GMAC_IN_MCAST",
+	"GMAC_IN_BCAST",
+	"GMAC_IN_MAC1",
+	"GMAC_IN_MAC2",
+	"RX_STATUS_GOOD_FRAME",
+	"RX_STATUS_TOO_LONG_GOOD_CRC",
+	"RX_STATUS_RUNT_FRAME",
+	"RX_STATUS_SFD_NOT_FOUND",
+	"RX_STATUS_CRC_ERROR",
+	"RX_STATUS_TOO_LONG_BAD_CRC",
+	"RX_STATUS_ALIGNMENT_ERROR",
+	"RX_STATUS_TOO_LONG_BAD_ALIGN",
+	"RX_STATUS_RX_ERR",
+	"RX_STATUS_DA_FILTERED",
+	"RX_STATUS_BUFFER_FULL",
+	"RX_STATUS_11",
+	"RX_STATUS_12",
+	"RX_STATUS_13",
+	"RX_STATUS_14",
+	"RX_STATUS_15",
+	"RX_CHKSUM_IP_UDP_TCP_OK",
+	"RX_CHKSUM_IP_OK_ONLY",
+	"RX_CHKSUM_NONE",
+	"RX_CHKSUM_3",
+	"RX_CHKSUM_IP_ERR_UNKNOWN",
+	"RX_CHKSUM_IP_ERR",
+	"RX_CHKSUM_TCP_UDP_ERR",
+	"RX_CHKSUM_7",
+	"RX_NAPI_EXITS",
+	"TX_FRAGS[1]",
+	"TX_FRAGS[2]",
+	"TX_FRAGS[3]",
+	"TX_FRAGS[4]",
+	"TX_FRAGS[5]",
+	"TX_FRAGS[6]",
+	"TX_FRAGS[7]",
+	"TX_FRAGS[8]",
+	"TX_FRAGS[9]",
+	"TX_FRAGS[10]",
+	"TX_FRAGS[11]",
+	"TX_FRAGS[12]",
+	"TX_FRAGS[13]",
+	"TX_FRAGS[14]",
+	"TX_FRAGS[15]",
+	"TX_FRAGS[16+]",
+	"TX_FRAGS_LINEARIZED",
+	"TX_HW_CSUMMED",
+};
+
+static void gmac_dump_dma_state(struct net_device *dev);
+
+static void gmac_update_config0_reg(struct net_device *dev, u32 val, u32 vmask)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&gmac->config_lock, flags);
+
+	reg = readl(gmac->ctl_iomem + GMAC_CONFIG0);
+	reg = (reg & ~vmask) | val;
+	writel(reg, gmac->ctl_iomem + GMAC_CONFIG0);
+
+	spin_unlock_irqrestore(&gmac->config_lock, flags);
+}
+
+static void gmac_enable_tx_rx(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&gmac->config_lock, flags);
+
+	reg = readl(config0);
+	reg &= ~CONFIG0_TX_RX_DISABLE;
+	writel(reg, config0);
+
+	spin_unlock_irqrestore(&gmac->config_lock, flags);
+}
+
+static void gmac_disable_tx_rx(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&gmac->config_lock, flags);
+
+	reg = readl(config0);
+	reg |= CONFIG0_TX_RX_DISABLE;
+	writel(reg, config0);
+
+	spin_unlock_irqrestore(&gmac->config_lock, flags);
+
+	mdelay(10);	/* let GMAC consume packet */
+}
+
+static void gmac_set_flow_control(struct net_device *dev, bool tx, bool rx)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	void __iomem *config0 = gmac->ctl_iomem + GMAC_CONFIG0;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&gmac->config_lock, flags);
+
+	reg = readl(config0);
+	reg &= ~CONFIG0_FLOW_CTL;
+	if (tx)
+		reg |= CONFIG0_FLOW_TX;
+	if (rx)
+		reg |= CONFIG0_FLOW_RX;
+	writel(reg, config0);
+
+	spin_unlock_irqrestore(&gmac->config_lock, flags);
+}
+
+static void gmac_update_link_state(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	void __iomem *status_reg = gmac->ctl_iomem + GMAC_STATUS;
+	struct phy_device *phydev = dev->phydev;
+	GMAC_STATUS_T status, old_status;
+	int pause_tx=0, pause_rx=0;
+
+	old_status.bits32 = status.bits32 = readl(status_reg);
+
+	status.bits.link = phydev->link;
+	status.bits.duplex = phydev->duplex;
+
+	switch (phydev->speed) {
+	case 1000:
+		status.bits.speed = GMAC_SPEED_1000;
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+			status.bits.mii_rmii = GMAC_PHY_RGMII_1000;
+		break;
+	case 100:
+		status.bits.speed = GMAC_SPEED_100;
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+		break;
+	case 10:
+		status.bits.speed = GMAC_SPEED_10;
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+		break;
+	default:
+		netdev_warn(dev, "Not supported PHY speed (%d)\n",
+			phydev->speed);
+	}
+
+	if (phydev->duplex == DUPLEX_FULL) {
+		u16 lcladv = phy_read(phydev, MII_ADVERTISE);
+		u16 rmtadv = phy_read(phydev, MII_LPA);
+		u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+
+		if (cap & FLOW_CTRL_RX)
+			pause_rx=1;
+		if (cap & FLOW_CTRL_TX)
+			pause_tx=1;
+	} 
+
+	gmac_set_flow_control(dev, pause_tx, pause_rx);
+
+	if (old_status.bits32 == status.bits32)
+		return;
+
+	if (netif_msg_link(gmac)) {
+		phy_print_status(phydev);
+		netdev_info(dev, "link flow control: %s\n",
+			phydev->pause
+				? (phydev->asym_pause ? "tx" : "both")
+				: (phydev->asym_pause ? "rx" : "none")
+		);
+	}
+
+	gmac_disable_tx_rx(dev);
+	writel(status.bits32, status_reg);
+	gmac_enable_tx_rx(dev);
+}
+
+static int gmac_setup_phy(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	struct gemini_gmac_platform_data *pdata = toe->dev->platform_data;
+	GMAC_STATUS_T status = { .bits32 = 0 };
+	int num = dev->dev_id;
+
+	dev->phydev = phy_connect(dev, pdata->bus_id[num],
+		&gmac_update_link_state, pdata->interface[num]);
+
+	if (IS_ERR(dev->phydev)) {
+		int err = PTR_ERR(dev->phydev);
+		dev->phydev = NULL;
+		return err;
+	}
+
+	dev->phydev->supported &= PHY_GBIT_FEATURES;
+	dev->phydev->supported |= SUPPORTED_Asym_Pause | SUPPORTED_Pause;
+	dev->phydev->advertising = dev->phydev->supported;
+
+	/* set PHY interface type */
+	switch (dev->phydev->interface) {
+	case PHY_INTERFACE_MODE_MII:
+		status.bits.mii_rmii = GMAC_PHY_MII;
+		break;
+	case PHY_INTERFACE_MODE_GMII:
+		status.bits.mii_rmii = GMAC_PHY_GMII;
+		break;
+	case PHY_INTERFACE_MODE_RGMII:
+		status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
+		break;
+	default:
+		netdev_err(dev, "Unsupported MII interface\n");
+		phy_disconnect(dev->phydev);
+		dev->phydev = NULL;
+		return -EINVAL;
+	}
+	writel(status.bits32, gmac->ctl_iomem + GMAC_STATUS);
+
+	return 0;
+}
+
+static int gmac_pick_rx_max_len(int max_l3_len)
+{
+	/* index = CONFIG_MAXLEN_XXX values */
+	static const int max_len[8] = {
+		1536, 1518, 1522, 1542,
+		9212, 10236, 1518, 1518
+	};
+	int i, n = 5;
+
+	max_l3_len += ETH_HLEN + VLAN_HLEN;
+
+	if (max_l3_len > max_len[n])
+		return -1;
+
+	for (i = 0; i < 5; ++i) {
+		if (max_len[i] >= max_l3_len && max_len[i] < max_len[n])
+			n = i;
+	}
+
+	return n;
+}
+
+static int gmac_init(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	u32 val;
+
+	GMAC_CONFIG0_T config0 = { .bits = {
+		.dis_tx = 1,
+		.dis_rx = 1,
+		.ipv4_rx_chksum = 1,
+		.ipv6_rx_chksum = 1,
+		.rx_err_detect = 1,
+		.rgmm_edge = 1,
+		.port0_chk_hwq = 1,
+		.port1_chk_hwq = 1,
+		.port0_chk_toeq = 1,
+		.port1_chk_toeq = 1,
+		.port0_chk_classq = 1,
+		.port1_chk_classq = 1,
+	} };
+	GMAC_AHB_WEIGHT_T ahb_weight = { .bits = {
+		.rx_weight = 1,
+		.tx_weight = 1,
+		.hash_weight = 1,
+		.pre_req = 0x1f,
+		.tqDV_threshold = 0,
+	} };
+	GMAC_TX_WCR0_T hw_weigh = { .bits = {
+		.hw_tq3 = 1,
+		.hw_tq2 = 1,
+		.hw_tq1 = 1,
+		.hw_tq0 = 1,
+	} };
+	GMAC_TX_WCR1_T sw_weigh = { .bits = {
+		.sw_tq5 = 1,
+		.sw_tq4 = 1,
+		.sw_tq3 = 1,
+		.sw_tq2 = 1,
+		.sw_tq1 = 1,
+		.sw_tq0 = 1,
+	} };
+	GMAC_CONFIG1_T config1 = { .bits = {
+		.set_threshold = 16,
+		.rel_threshold = 24,
+	} };
+	GMAC_CONFIG2_T config2 = { .bits = {
+		.set_threshold = 16,
+		.rel_threshold = 32,
+	} };
+	GMAC_CONFIG3_T config3 = { .bits = {
+		.set_threshold = 0,
+		.rel_threshold = 0,
+	} };
+
+	config0.bits.max_len = gmac_pick_rx_max_len(dev->mtu);
+
+	val = readl(gmac->ctl_iomem + GMAC_CONFIG0);
+	config0.bits.reserved = ((GMAC_CONFIG0_T)val).bits.reserved;
+	writel(config0.bits32, gmac->ctl_iomem + GMAC_CONFIG0);
+	writel(config1.bits32, gmac->ctl_iomem + GMAC_CONFIG1);
+	writel(config2.bits32, gmac->ctl_iomem + GMAC_CONFIG2);
+	writel(config3.bits32, gmac->ctl_iomem + GMAC_CONFIG3);
+
+	val = readl(gmac->dma_iomem + GMAC_AHB_WEIGHT_REG);
+	writel(ahb_weight.bits32, gmac->dma_iomem + GMAC_AHB_WEIGHT_REG);
+
+	writel(hw_weigh.bits32,
+		gmac->dma_iomem + GMAC_TX_WEIGHTING_CTRL_0_REG);
+	writel(sw_weigh.bits32,
+		gmac->dma_iomem + GMAC_TX_WEIGHTING_CTRL_1_REG);
+
+	gmac->rxq_order = DEFAULT_GMAC_RXQ_ORDER;
+	gmac->txq_order = DEFAULT_GMAC_TXQ_ORDER;
+	gmac->rx_coalesce_nsecs = DEFAULT_RX_COALESCE_NSECS;
+
+	/* Mark every quarter of the queue a packet for interrupt
+	   in order to be able to wake up the queue if it was stopped */
+	gmac->irq_every_tx_packets = 1 << (gmac->txq_order - 2);
+
+	return 0;
+}
+
+static void gmac_uninit(struct net_device *dev)
+{
+	if (dev->phydev)
+		phy_disconnect(dev->phydev);
+}
+
+static int gmac_setup_txqs(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	void __iomem *rwptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG;
+	void __iomem *base_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_BASE_REG;
+
+	unsigned int n_txq = dev->num_tx_queues;
+	size_t entries = 1 <<gmac->txq_order;
+	size_t len = n_txq * entries;
+	struct gmac_txq *txq = gmac->txq;
+	GMAC_TXDESC_T *desc_ring;
+	struct sk_buff **skb_tab;
+	unsigned int r;
+	int i;
+
+	skb_tab = kzalloc(len * sizeof(*skb_tab), GFP_KERNEL);
+	if (!skb_tab)
+		return -ENOMEM;
+
+	desc_ring = dma_alloc_coherent(toe->dev, len * sizeof(*desc_ring),
+		&gmac->txq_dma_base, GFP_KERNEL);
+
+	if (!desc_ring) {
+		kfree(skb_tab);
+		return -ENOMEM;
+	}
+
+	BUG_ON(gmac->txq_dma_base & ~DMA_Q_BASE_MASK);
+
+	writel(gmac->txq_dma_base | gmac->txq_order, base_reg);
+
+	for (i = 0; i < n_txq; i++) {
+		txq->ring = desc_ring;
+		txq->skb = skb_tab;
+		txq->noirq_packets = 0;
+
+		r = readw(rwptr_reg);
+		rwptr_reg += 2;
+		writew(r, rwptr_reg);
+		rwptr_reg +=2;
+		txq->cptr = r;
+		
+		txq++;
+		desc_ring += entries;
+		skb_tab += entries;
+	}
+
+	return 0;
+}
+
+static void gmac_clean_txq(struct net_device *dev, struct gmac_txq *txq,
+			   unsigned int r)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned int errs = 0;
+	unsigned int pkts = 0;
+	unsigned int hwchksum = 0;
+	unsigned long bytes = 0;
+	unsigned int m = (1 << gmac->txq_order) - 1;
+	unsigned int c = txq->cptr;
+	GMAC_TXDESC_0_T word0;
+	GMAC_TXDESC_1_T word1;
+	unsigned int word3;
+	dma_addr_t mapping;
+	GMAC_TXDESC_T *txd;
+	unsigned short nfrags;
+
+	if (unlikely(c == r))
+		return;
+
+	rmb();
+	while (c != r) {
+		txd = txq->ring + c;
+		word0 = txd->word0;
+		word1 = txd->word1;
+		mapping = txd->word2.buf_adr;
+		word3 = txd->word3.bits32;
+
+		dma_unmap_single(toe->dev, mapping, word0.bits.buffer_size, DMA_TO_DEVICE);
+
+		if (word3 & EOF_BIT)
+			dev_kfree_skb(txq->skb[c]);
+
+		c++;
+		c &= m;
+
+		if (!(word3 & SOF_BIT))
+			continue;
+		
+		if (!word0.bits.status_tx_ok) {
+			errs++;
+			continue;
+		}
+
+		pkts++;
+		bytes += txd->word1.bits.byte_count;
+
+		if (word1.bits32 & TSS_CHECKUM_ENABLE)
+			hwchksum++;
+
+		nfrags = word0.bits.desc_count - 1;
+		if (nfrags) {
+			if (nfrags >= TX_MAX_FRAGS)
+				nfrags = TX_MAX_FRAGS - 1;
+
+			u64_stats_update_begin(&gmac->tx_stats_syncp);
+			gmac->tx_frag_stats[nfrags]++;
+			u64_stats_update_end(&gmac->ir_stats_syncp);
+		}
+	}
+
+	u64_stats_update_begin(&gmac->ir_stats_syncp);
+	gmac->stats.tx_errors += errs;
+	gmac->stats.tx_packets += pkts;
+	gmac->stats.tx_bytes += bytes;
+	gmac->tx_hw_csummed += hwchksum;
+	u64_stats_update_end(&gmac->ir_stats_syncp);
+
+	txq->cptr = c;
+}
+
+static void gmac_cleanup_txqs(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	void __iomem *rwptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG;
+	void __iomem *base_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_BASE_REG;
+
+	unsigned n_txq = dev->num_tx_queues;
+	unsigned int r, i;
+
+	for (i = 0; i < n_txq; i++) {
+		r = readw(rwptr_reg);
+		rwptr_reg += 2;
+		writew(r, rwptr_reg);
+		rwptr_reg += 2;
+
+		gmac_clean_txq(dev, gmac->txq + i, r);
+	}
+	writel(0, base_reg);
+
+	kfree(gmac->txq->skb);
+	dma_free_coherent(toe->dev,
+		n_txq * sizeof(*gmac->txq->ring) << gmac->txq_order,
+		gmac->txq->ring, gmac->txq_dma_base);
+}
+
+static int gmac_setup_rxq(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	NONTOE_QHDR_T __iomem *qhdr = toe->iomem + TOE_DEFAULT_Q_HDR_BASE(dev->dev_id);
+
+	gmac->rxq_rwptr = &qhdr->word1;
+	gmac->rxq_ring = dma_alloc_coherent(toe->dev,
+		sizeof(*gmac->rxq_ring) << gmac->rxq_order,
+		&gmac->rxq_dma_base, GFP_KERNEL);
+	if (!gmac->rxq_ring)
+		return -ENOMEM;
+
+	BUG_ON(gmac->rxq_dma_base & ~NONTOE_QHDR0_BASE_MASK);
+	
+	writel(gmac->rxq_dma_base | gmac->rxq_order, &qhdr->word0);
+	writel(0, gmac->rxq_rwptr);
+	return 0;
+}
+
+static void gmac_cleanup_rxq(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+
+	NONTOE_QHDR_T __iomem *qhdr = toe->iomem + TOE_DEFAULT_Q_HDR_BASE(dev->dev_id);
+	void __iomem *dma_reg = &qhdr->word0;
+	void __iomem *ptr_reg = &qhdr->word1;
+	GMAC_RXDESC_T *rxd = gmac->rxq_ring;
+	DMA_RWPTR_T rw;
+	unsigned int r, w;
+	unsigned int m = (1 <<gmac->rxq_order) - 1;
+	struct page *page;
+	dma_addr_t mapping;
+
+	rw.bits32 = readl(ptr_reg);
+	r = rw.bits.rptr;
+	w = rw.bits.wptr;
+	writew(r, ptr_reg + 2);
+
+	writel(0, dma_reg);
+
+	rmb();
+	while (r != w) {
+		mapping = rxd[r].word2.buf_adr;
+		r++;
+		r &= m;
+
+		if (!mapping)
+			continue;
+
+		page = pfn_to_page(dma_to_pfn(toe->dev, mapping));
+		put_page(page);
+	}
+
+	dma_free_coherent(toe->dev, sizeof(*gmac->rxq_ring) << gmac->rxq_order,
+		gmac->rxq_ring, gmac->rxq_dma_base);
+}
+
+static struct page *toe_freeq_alloc_map_page(struct toe_private *toe, int pn)
+{
+	unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order;
+	unsigned int frag_len = 1 << toe->freeq_frag_order;
+	GMAC_RXDESC_T *freeq_entry;
+	dma_addr_t mapping;
+	struct page *page;
+	int i;
+
+	page = alloc_page(__GFP_COLD | GFP_ATOMIC);
+	if (!page)
+		return NULL;
+
+	mapping = dma_map_single(toe->dev, page_address(page),
+				PAGE_SIZE, DMA_FROM_DEVICE);
+
+	if (unlikely(dma_mapping_error(toe->dev, mapping) || !mapping)) {
+		put_page(page);
+		return NULL;
+	}
+
+	freeq_entry = toe->freeq_ring + (pn << fpp_order);
+	for (i = 1 << fpp_order; i > 0; --i) {
+		freeq_entry->word2.buf_adr = mapping;
+		freeq_entry++;
+		mapping += frag_len;
+	}
+
+	if (toe->freeq_page_tab[pn]) {
+		mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr;
+		dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE);
+		put_page(toe->freeq_page_tab[pn]);
+	}
+
+	toe->freeq_page_tab[pn] = page;
+	return page;
+}
+
+static unsigned int toe_fill_freeq(struct toe_private *toe, int reset)
+{
+	void __iomem *rwptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG;
+
+	DMA_RWPTR_T rw;
+	unsigned int pn, epn;
+	unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order;
+	unsigned int m_pn = (1 << (toe->freeq_order - fpp_order)) - 1;
+	struct page *page;
+	unsigned int count = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&toe->freeq_lock, flags);
+
+	rw.bits32 = readl(rwptr_reg);
+	pn = (reset ? rw.bits.rptr : rw.bits.wptr) >> fpp_order;
+	epn = (rw.bits.rptr >> fpp_order) - 1;
+	epn &= m_pn;
+
+	while (pn != epn) {
+		page = toe->freeq_page_tab[pn];
+
+		if (atomic_read(&page->_count) > 1) {
+			unsigned int fl = (pn -epn) & m_pn;
+
+			if (fl > 64 >> fpp_order)
+				break;
+
+			page = toe_freeq_alloc_map_page(toe, pn);
+			if (!page)
+				break;
+		}
+
+		atomic_add(1 << fpp_order, &page->_count);
+		count += 1 << fpp_order;
+		pn++;
+		pn &= m_pn;
+	}
+
+	wmb();
+	writew(pn << fpp_order, rwptr_reg+2);
+
+	spin_unlock_irqrestore(&toe->freeq_lock, flags);
+	return count;
+}
+
+static int toe_setup_freeq(struct toe_private *toe)
+{
+	void __iomem *dma_reg = toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG;
+	QUEUE_THRESHOLD_T qt;
+	DMA_SKB_SIZE_T skbsz;
+	unsigned int filled;
+	unsigned int frag_len = 1 << toe->freeq_frag_order;
+	unsigned int len = 1 << toe->freeq_order;
+	unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order;
+	unsigned int pages = len >> fpp_order;
+	dma_addr_t mapping;
+	unsigned int pn;
+
+	toe->freeq_ring = dma_alloc_coherent(toe->dev,
+		sizeof(*toe->freeq_ring) << toe->freeq_order,
+		&toe->freeq_dma_base, GFP_KERNEL);
+	if (!toe->freeq_ring)
+		return -ENOMEM;
+
+	BUG_ON(toe->freeq_dma_base & ~DMA_Q_BASE_MASK);
+
+	toe->freeq_page_tab = kzalloc(pages * sizeof(*toe->freeq_page_tab),
+							GFP_KERNEL);
+	if (!toe->freeq_page_tab)
+		goto err_freeq;
+
+	for (pn = 0; pn < pages; pn++)
+		if (!toe_freeq_alloc_map_page(toe, pn))
+			goto err_freeq_alloc;
+
+	filled = toe_fill_freeq(toe, 1);
+	if (!filled)
+		goto err_freeq_alloc;
+
+	qt.bits32 = readl(toe->iomem + GLOBAL_QUEUE_THRESHOLD_REG);
+	qt.bits.swfq_empty = 32;
+	writel(qt.bits32, toe->iomem + GLOBAL_QUEUE_THRESHOLD_REG);
+
+	skbsz.bits.sw_skb_size = 1 << toe->freeq_frag_order;
+	writel(skbsz.bits32, toe->iomem + GLOBAL_DMA_SKB_SIZE_REG);
+	writel(toe->freeq_dma_base | toe->freeq_order, dma_reg);
+
+	return 0;
+
+err_freeq_alloc:
+	while (pn > 0) {
+		--pn;
+		mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr;
+		dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE);
+		put_page(toe->freeq_page_tab[pn]);
+	}
+
+err_freeq:
+	dma_free_coherent(toe->dev,
+		sizeof(*toe->freeq_ring) << toe->freeq_order,
+		toe->freeq_ring, toe->freeq_dma_base);
+	toe->freeq_ring = NULL;
+	return -ENOMEM;
+}
+
+static void toe_cleanup_freeq(struct toe_private *toe)
+{
+	void __iomem *dma_reg = toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG;
+	void __iomem *ptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG;
+
+	unsigned int frag_len = 1 << toe->freeq_frag_order;
+	unsigned int len = 1 << toe->freeq_order;
+	unsigned int fpp_order = PAGE_SHIFT - toe->freeq_frag_order;
+	unsigned int pages = len >> fpp_order;
+	struct page *page;
+	dma_addr_t mapping;
+	unsigned int pn;
+
+	writew(readw(ptr_reg), ptr_reg + 2);
+	writel(0, dma_reg);
+
+	for (pn = 0; pn < pages; pn++) {
+		mapping = toe->freeq_ring[pn << fpp_order].word2.buf_adr;
+		dma_unmap_single(toe->dev, mapping, frag_len, DMA_FROM_DEVICE);
+
+		page = toe->freeq_page_tab[pn];
+		while (atomic_read(&page->_count) > 0)
+			put_page(page);
+	}
+
+	kfree(toe->freeq_page_tab);
+
+	dma_free_coherent(toe->dev,
+		sizeof(*toe->freeq_ring) << toe->freeq_order,
+		toe->freeq_ring, toe->freeq_dma_base);
+}
+
+static int toe_resize_freeq(struct toe_private *toe, int changing_dev_id)
+{
+	void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG;
+	struct gmac_private *gmac;
+	struct net_device *other = toe->netdev[1 - changing_dev_id];
+	unsigned new_size = 0;
+	unsigned new_order;
+	int err;
+	unsigned long flags;
+	unsigned en;
+
+	if (other && netif_running(other))
+		return -EBUSY;
+
+	if (toe->netdev[0]) {
+		gmac = netdev_priv(toe->netdev[0]);
+		new_size  = 1 << (gmac->rxq_order + 1);
+	}
+
+	if (toe->netdev[1]) {
+		gmac = netdev_priv(toe->netdev[1]);
+		new_size  += 1 << (gmac->rxq_order + 1);
+	}
+
+	new_order = min(15, ilog2(new_size - 1) + 1);
+	if (toe->freeq_order == new_order)
+		return 0;
+
+	spin_lock_irqsave(&toe->irq_lock, flags);
+	en = readl(irqen_reg);
+	en &= ~SWFQ_EMPTY_INT_BIT;
+	writel(en, irqen_reg);
+
+	if (toe->freeq_ring)
+		toe_cleanup_freeq(toe);
+
+	toe->freeq_order = new_order;
+	err = toe_setup_freeq(toe);
+
+	en |= SWFQ_EMPTY_INT_BIT;
+	writel(en, irqen_reg);
+	spin_unlock_irqrestore(&toe->irq_lock, flags);
+
+	return err;
+}
+
+static void gmac_tx_irq_enable(struct net_device *dev, unsigned txq, int en)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned val, mask;
+
+	mask = GMAC0_IRQ0_TXQ0_INTS << (6 * dev->dev_id + txq);
+
+	if (en)
+		writel(mask, toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG);
+
+	val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+	val = en ? val | mask : val & ~mask;
+	writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+}
+
+
+static void gmac_tx_irq(struct net_device *dev, unsigned txq_num)
+{
+	struct netdev_queue *ntxq = netdev_get_tx_queue(dev, txq_num);
+
+	gmac_tx_irq_enable(dev, txq_num, 0);
+	netif_tx_wake_queue(ntxq);
+}
+
+static int gmac_map_tx_bufs(struct net_device *dev, struct sk_buff *skb,
+			    struct gmac_txq *txq, unsigned short *desc)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	struct skb_shared_info *skb_si =  skb_shinfo(skb);
+	skb_frag_t *skb_frag;
+	short frag, last_frag = skb_si->nr_frags - 1;
+	unsigned short m = (1 << gmac->txq_order) -1;
+	unsigned short w = *desc;
+	unsigned word1, word3, buflen;
+	dma_addr_t mapping;
+	void *buffer;
+	unsigned short mtu;
+	GMAC_TXDESC_T *txd;
+
+	mtu  = ETH_HLEN;
+	mtu += dev->mtu;
+	if (skb->protocol == htons(ETH_P_8021Q))
+		mtu += VLAN_HLEN;
+
+	word1 = skb->len;
+	word3 = SOF_BIT;
+		
+	if (word1 > mtu) {
+		word1 |= TSS_MTU_ENABLE_BIT;
+		word3 += mtu;
+	}
+
+	if (skb->ip_summed != CHECKSUM_NONE) {
+		int tcp = 0;
+		if (skb->protocol == htons(ETH_P_IP)) {
+			word1 |= TSS_IP_CHKSUM_BIT;
+			tcp = ip_hdr(skb)->protocol == IPPROTO_TCP;
+		} else { /* IPv6 */
+			word1 |= TSS_IPV6_ENABLE_BIT;
+			tcp = ipv6_hdr(skb)->nexthdr == IPPROTO_TCP;
+		}
+
+		word1 |= tcp ? TSS_TCP_CHKSUM_BIT : TSS_UDP_CHKSUM_BIT;
+	}
+
+	frag = -1;
+	while (frag <= last_frag) {
+		if (frag == -1) {
+			buffer = skb->data;
+			buflen = skb_headlen(skb);
+		} else {
+			skb_frag = skb_si->frags + frag;
+			buffer = page_address(skb_frag_page(skb_frag)) +
+				 skb_frag->page_offset;
+			buflen = skb_frag->size;
+		}
+
+		if (frag == last_frag) {
+			word3 |= EOF_BIT;
+			txq->skb[w] = skb;
+		}
+
+		mapping = dma_map_single(toe->dev, buffer, buflen,
+					DMA_TO_DEVICE);
+		if (dma_mapping_error(toe->dev, mapping) ||
+			!(mapping & PAGE_MASK))
+			goto map_error;
+
+		txd = txq->ring + w;
+		txd->word0.bits32 = buflen;
+		txd->word1.bits32 = word1;
+		txd->word2.buf_adr = mapping;
+		txd->word3.bits32 = word3;
+
+		word3 &= MTU_SIZE_BIT_MASK;
+		w++;
+		w &= m;
+		frag++;
+	}
+
+	*desc = w;
+	return 0;
+
+map_error:
+	while (w != *desc) {
+		w--;
+		w &= m;
+
+		dma_unmap_page(toe->dev, txq->ring[w].word2.buf_adr,
+			txq->ring[w].word0.bits.buffer_size, DMA_TO_DEVICE);
+	}
+	return ENOMEM;
+}
+
+static int gmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+
+	void __iomem *ptr_reg;
+	struct gmac_txq *txq;
+	struct netdev_queue *ntxq;
+	int txq_num, nfrags;
+	DMA_RWPTR_T rw;
+	unsigned short r, w, d;
+	unsigned short m = (1 << gmac->txq_order) - 1;
+
+	SKB_FRAG_ASSERT(skb);
+
+	if (unlikely(skb->len >= 0x10000))
+		goto out_drop_free;
+
+		txq_num = skb_get_queue_mapping(skb);
+	ptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE_PTR_REG(txq_num);
+	txq = &gmac->txq[txq_num];
+	ntxq = netdev_get_tx_queue(dev, txq_num);
+	nfrags = skb_shinfo(skb)->nr_frags;
+
+	rw.bits32 = readl(ptr_reg);
+	r = rw.bits.rptr;
+	w = rw.bits.wptr;
+
+	d = txq->cptr - w - 1;
+	d &= m;
+
+	if (unlikely(d < nfrags+2))
+	{
+		gmac_clean_txq(dev, txq, r);
+		d = txq->cptr - w - 1;
+		d &= m;
+
+		if (unlikely(d < nfrags+2)) {
+			netif_tx_stop_queue(ntxq);
+
+			d = txq->cptr + nfrags + 16;
+			d &= m;
+			txq->ring[d].word3.bits.eofie = 1;
+			gmac_tx_irq_enable(dev, txq_num, 1);
+
+			u64_stats_update_begin(&gmac->tx_stats_syncp);
+			dev->stats.tx_fifo_errors++;
+			u64_stats_update_end(&gmac->tx_stats_syncp);
+			return NETDEV_TX_BUSY;
+		}
+	}
+
+	if (unlikely(gmac_map_tx_bufs(dev, skb, txq, &w))) {
+		if (skb_linearize(skb))
+			goto out_drop;
+
+		if (unlikely(gmac_map_tx_bufs(dev, skb, txq, &w)))
+			goto out_drop_free;
+
+		u64_stats_update_begin(&gmac->tx_stats_syncp);
+		gmac->tx_frags_linearized++;
+		u64_stats_update_end(&gmac->tx_stats_syncp);
+	}
+
+	writew(w, ptr_reg+2);
+
+	gmac_clean_txq(dev, txq, r);
+	return NETDEV_TX_OK;
+
+out_drop_free:
+	dev_kfree_skb(skb);
+out_drop:
+	u64_stats_update_begin(&gmac->tx_stats_syncp);
+	gmac->stats.tx_dropped++;
+	u64_stats_update_end(&gmac->tx_stats_syncp);
+	return NETDEV_TX_OK;
+}
+
+static void gmac_tx_timeout(struct net_device *dev)
+{
+	netdev_err(dev, "Tx timeout\n");
+	gmac_dump_dma_state(dev);
+}
+
+static void gmac_enable_irq(struct net_device *dev, int enable)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned long flags;
+	unsigned val, mask;
+
+	spin_lock_irqsave(&toe->irq_lock, flags);
+
+	mask = GMAC0_IRQ0_2 << (dev->dev_id * 2);
+	val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+	val = enable ? (val | mask) : (val & ~mask);
+	writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+
+	mask = DEFAULT_Q0_INT_BIT << dev->dev_id;
+	val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+	val = enable ? (val | mask) : (val & ~mask);
+	writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+
+	mask = GMAC0_IRQ4_8 << (dev->dev_id * 8);
+	val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG);
+	val = enable ? (val | mask) : (val & ~mask);
+	writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG);
+
+	spin_unlock_irqrestore(&toe->irq_lock, flags);
+}
+
+static void gmac_enable_rx_irq(struct net_device *dev, int enable)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned long flags;
+	unsigned val, mask;
+
+	spin_lock_irqsave(&toe->irq_lock, flags);
+	mask = DEFAULT_Q0_INT_BIT << dev->dev_id;
+
+	val = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+	val = enable ? (val | mask) : (val & ~mask);
+	writel(val, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+
+	spin_unlock_irqrestore(&toe->irq_lock, flags);
+}
+
+static struct sk_buff *gmac_skb_if_good_frame(struct gmac_private *gmac,
+	GMAC_RXDESC_0_T word0, unsigned frame_len)
+{
+	struct sk_buff *skb = NULL;
+	unsigned rx_status = word0.bits.status;
+	unsigned rx_csum = word0.bits.chksum_status;
+
+	gmac->rx_stats[rx_status]++;
+	gmac->rx_csum_stats[rx_csum]++;
+
+	if (word0.bits.derr || word0.bits.perr ||
+	    rx_status || frame_len < ETH_ZLEN ||
+	    rx_csum >= RX_CHKSUM_IP_ERR_UNKNOWN) {
+		gmac->stats.rx_errors++;
+
+		if (frame_len < ETH_ZLEN || RX_ERROR_LENGTH(rx_status))
+			gmac->stats.rx_length_errors++;
+		if (RX_ERROR_OVER(rx_status))
+			gmac->stats.rx_over_errors++;
+		if (RX_ERROR_CRC(rx_status))
+			gmac->stats.rx_crc_errors++;
+		if (RX_ERROR_FRAME(rx_status))
+			gmac->stats.rx_frame_errors++;
+
+		return NULL;
+	}
+
+	skb = napi_get_frags(&gmac->napi);
+	if (!skb)
+		return NULL;
+
+	if (rx_csum == RX_CHKSUM_IP_UDP_TCP_OK)
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+	gmac->stats.rx_bytes += frame_len;
+	gmac->stats.rx_packets++;
+	return skb;
+}
+
+static unsigned gmac_rx(struct net_device *dev, unsigned budget)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	void __iomem *ptr_reg = gmac->rxq_rwptr;
+
+	static struct sk_buff *skb;
+
+	DMA_RWPTR_T rw;
+	unsigned short r, w;
+	unsigned short m = (1 << gmac->rxq_order) -1;
+	GMAC_RXDESC_T *rx = NULL;
+	struct page* page = NULL;
+	unsigned page_offs;
+	unsigned int frame_len, frag_len;
+	int frag_nr = 0;
+	
+	GMAC_RXDESC_0_T word0;
+	GMAC_RXDESC_1_T word1;
+	dma_addr_t mapping;
+	GMAC_RXDESC_3_T word3;
+
+	rw.bits32 = readl(ptr_reg);
+	/* Reset interrupt as all packages until here are taken into account */
+	writel(DEFAULT_Q0_INT_BIT << dev->dev_id,
+		toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG);
+	r = rw.bits.rptr;
+	w = rw.bits.wptr;
+	
+	while (budget && w != r) {
+		rx = gmac->rxq_ring + r;
+		word0 = rx->word0;
+		word1 = rx->word1;
+		mapping = rx->word2.buf_adr;
+		word3 = rx->word3;
+		
+		r++;
+		r &= m;
+
+		frag_len = word0.bits.buffer_size;
+		frame_len =word1.bits.byte_count;
+		page_offs = mapping & ~PAGE_MASK;
+
+		if (unlikely(!mapping)) {
+			netdev_err(dev, "rxq[%u]: HW BUG: zero DMA desc\n", r);
+			goto err_drop;
+		}
+
+		page = pfn_to_page(dma_to_pfn(toe->dev, mapping));
+
+		if (word3.bits32 & SOF_BIT) {
+			if (unlikely(skb)) {
+				napi_free_frags(&gmac->napi);
+				gmac->stats.rx_dropped++;
+			}
+
+			skb = gmac_skb_if_good_frame(gmac, word0, frame_len);
+			if (unlikely(!skb))
+				goto err_drop;
+
+			page_offs += NET_IP_ALIGN;
+			frag_len -= NET_IP_ALIGN;
+			frag_nr = 0;
+
+		} else if (!skb) {
+			put_page(page);
+			continue;
+		}
+
+		if (word3.bits32 & EOF_BIT)
+			frag_len = frame_len - skb->len;
+
+		/* append page frag to skb */
+		if (unlikely(frag_nr == MAX_SKB_FRAGS))
+			goto err_drop;
+
+		if (frag_len == 0)
+			netdev_err(dev, "Received fragment with len = 0\n");
+
+		skb_fill_page_desc(skb, frag_nr, page, page_offs, frag_len);
+		skb->len += frag_len;
+		skb->data_len += frag_len;
+		skb->truesize += frag_len;
+		frag_nr++;
+
+		if (word3.bits32 & EOF_BIT) {
+			napi_gro_frags(&gmac->napi);
+			skb = NULL;
+			--budget;
+		}
+		continue;
+		
+err_drop:
+		if (skb) {
+			napi_free_frags(&gmac->napi);
+			skb = NULL;
+		}
+
+		if (mapping)
+			put_page(page);
+
+		gmac->stats.rx_dropped++;
+	}
+
+	writew(r, ptr_reg);
+	return budget;
+}
+
+static int gmac_napi_poll(struct napi_struct *napi, int budget)
+{
+	struct gmac_private *gmac = netdev_priv(napi->dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned rx;
+	unsigned freeq_threshold = 1 << (toe->freeq_order - 1);
+
+	u64_stats_update_begin(&gmac->rx_stats_syncp);
+	
+	rx = budget - gmac_rx(napi->dev, budget);
+
+	if (rx == 0) {
+		napi_gro_flush(napi, false);
+		__napi_complete(napi);
+		gmac_enable_rx_irq(napi->dev, 1);
+		++gmac->rx_napi_exits;
+	}
+
+	gmac->freeq_refill += rx;
+	if (gmac->freeq_refill > freeq_threshold) {
+		gmac->freeq_refill -= freeq_threshold;
+		toe_fill_freeq(toe, 0);
+	}
+
+	u64_stats_update_end(&gmac->rx_stats_syncp);
+	return budget;
+}
+
+static void gmac_dump_dma_state(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	void __iomem *ptr_reg;
+	unsigned reg[5];
+
+	/* Interrupt status */
+	reg[0] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG);
+	reg[1] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG);
+	reg[2] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_2_REG);
+	reg[3] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_3_REG);
+	reg[4] = readl(toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG);
+	netdev_err(dev, "IRQ status: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+		reg[0], reg[1], reg[2], reg[3], reg[4]);
+
+	/* Interrupt enable */
+	reg[0] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+	reg[1] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+	reg[2] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_2_REG);
+	reg[3] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_3_REG);
+	reg[4] = readl(toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG);
+	netdev_err(dev, "IRQ enable: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+		reg[0], reg[1], reg[2], reg[3], reg[4]);
+
+	/* RX DMA status */
+	reg[0] = readl(gmac->dma_iomem + GMAC_DMA_RX_FIRST_DESC_REG);
+	reg[1] = readl(gmac->dma_iomem + GMAC_DMA_RX_CURR_DESC_REG);
+	reg[2] = GET_RPTR(gmac->rxq_rwptr);
+	reg[3] = GET_WPTR(gmac->rxq_rwptr);
+	netdev_err(dev, "RX DMA regs: 0x%08x 0x%08x, ptr: %u %u\n",
+		reg[0], reg[1], reg[2], reg[3]);
+
+	reg[0] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD0_REG);
+	reg[1] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD1_REG);
+	reg[2] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD2_REG);
+	reg[3] = readl(gmac->dma_iomem + GMAC_DMA_RX_DESC_WORD3_REG);
+	netdev_err(dev, "RX DMA descriptor: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+		reg[0], reg[1], reg[2], reg[3]);
+
+	/* TX DMA status */
+	ptr_reg = gmac->dma_iomem + GMAC_SW_TX_QUEUE0_PTR_REG;
+
+	reg[0] = readl(gmac->dma_iomem + GMAC_DMA_TX_FIRST_DESC_REG);
+	reg[1] = readl(gmac->dma_iomem + GMAC_DMA_TX_CURR_DESC_REG);
+	reg[2] = GET_RPTR(ptr_reg);
+	reg[3] = GET_WPTR(ptr_reg);
+	netdev_err(dev, "TX DMA regs: 0x%08x 0x%08x, ptr: %u %u\n",
+		reg[0], reg[1], reg[2], reg[3]);
+
+	reg[0] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD0_REG);
+	reg[1] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD1_REG);
+	reg[2] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD2_REG);
+	reg[3] = readl(gmac->dma_iomem + GMAC_DMA_TX_DESC_WORD3_REG);
+	netdev_err(dev, "TX DMA descriptor: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+		reg[0], reg[1], reg[2], reg[3]);
+
+	/* FREE queues status */
+	ptr_reg = toe->iomem + GLOBAL_SWFQ_RWPTR_REG;
+
+	reg[0] = GET_RPTR(ptr_reg);
+	reg[1] = GET_WPTR(ptr_reg);
+
+	ptr_reg = toe->iomem + GLOBAL_HWFQ_RWPTR_REG;
+
+	reg[2] = GET_RPTR(ptr_reg);
+	reg[3] = GET_WPTR(ptr_reg);
+	netdev_err(dev, "FQ SW ptr: %u %u, HW ptr: %u %u\n",
+		reg[0], reg[1], reg[2], reg[3]);
+}
+
+static void gmac_update_hw_stats(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned long flags;
+	unsigned int rx_discards, rx_mcast, rx_bcast;
+
+	spin_lock_irqsave(&toe->irq_lock, flags);
+	u64_stats_update_begin(&gmac->ir_stats_syncp);
+
+	gmac->hw_stats[0] += rx_discards = readl(gmac->ctl_iomem + GMAC_IN_DISCARDS);
+	gmac->hw_stats[1] += readl(gmac->ctl_iomem + GMAC_IN_ERRORS);
+	gmac->hw_stats[2] += rx_mcast = readl(gmac->ctl_iomem + GMAC_IN_MCAST);
+	gmac->hw_stats[3] += rx_bcast = readl(gmac->ctl_iomem + GMAC_IN_BCAST);
+	gmac->hw_stats[4] += readl(gmac->ctl_iomem + GMAC_IN_MAC1);
+	gmac->hw_stats[5] += readl(gmac->ctl_iomem + GMAC_IN_MAC2);
+
+	gmac->stats.rx_missed_errors += rx_discards;
+	gmac->stats.multicast += rx_mcast;
+	gmac->stats.multicast += rx_bcast;
+
+	writel(GMAC0_MIB_INT_BIT << (dev->dev_id * 8),
+		toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+	u64_stats_update_end(&gmac->ir_stats_syncp);
+	spin_unlock_irqrestore(&toe->irq_lock, flags);
+}
+
+static inline unsigned gmac_get_intr_flags(struct net_device *dev, int i)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	void __iomem *irqif_reg, *irqen_reg;
+	unsigned offs, val;
+
+	offs = i * (GLOBAL_INTERRUPT_STATUS_1_REG - GLOBAL_INTERRUPT_STATUS_0_REG);
+
+	irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG + offs;
+	irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG + offs;
+
+	val = readl(irqif_reg) & readl(irqen_reg);
+	return val;
+}
+
+enum hrtimer_restart gmac_coalesce_delay_expired( struct hrtimer *timer )
+{
+	struct gmac_private *gmac = container_of(timer, struct gmac_private, rx_coalesce_timer);
+
+	napi_schedule(&gmac->napi);
+	return HRTIMER_NORESTART;
+}
+
+static irqreturn_t gmac_irq(int irq, void *data)
+{
+	struct net_device *dev = data;
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	unsigned val, orr = 0;
+
+	orr |= val = gmac_get_intr_flags(dev, 0);
+
+	if (unlikely(val & (GMAC0_IRQ0_2 << (dev->dev_id * 2)))) {
+		/* oh, crap. */
+		netdev_err(dev, "hw failure/sw bug\n");
+		gmac_dump_dma_state(dev);
+
+		/* don't know how to recover, just reduce losses */
+		gmac_enable_irq(dev, 0);
+		return IRQ_HANDLED;
+	}
+
+	if (val & (GMAC0_IRQ0_TXQ0_INTS << (dev->dev_id * 6)))
+		gmac_tx_irq(dev, 0);
+
+	orr |= val = gmac_get_intr_flags(dev, 1);
+
+	if (val & (DEFAULT_Q0_INT_BIT << dev->dev_id)) {
+
+		gmac_enable_rx_irq(dev, 0);
+
+		if (!gmac->rx_coalesce_nsecs)
+			napi_schedule(&gmac->napi);
+		else {
+			ktime_t ktime;
+			ktime = ktime_set(0, gmac->rx_coalesce_nsecs);
+			hrtimer_start(&gmac->rx_coalesce_timer, ktime, HRTIMER_MODE_REL);
+		}
+	}
+
+	orr |= val = gmac_get_intr_flags(dev, 4);
+
+	if (unlikely(val & (GMAC0_MIB_INT_BIT << (dev->dev_id * 8))))
+		gmac_update_hw_stats(dev);
+
+	if (unlikely(val & (GMAC0_RX_OVERRUN_INT_BIT << (dev->dev_id * 8)))) {
+		writel(GMAC0_RXDERR_INT_BIT << (dev->dev_id * 8),
+			toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+		spin_lock(&toe->irq_lock);
+		u64_stats_update_begin(&gmac->ir_stats_syncp);
+		++gmac->stats.rx_fifo_errors;
+		u64_stats_update_end(&gmac->ir_stats_syncp);
+		spin_unlock(&toe->irq_lock);
+	}
+
+	return orr ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static void gmac_start_dma(struct gmac_private *gmac)
+{
+	void __iomem *dma_ctrl_reg = gmac->dma_iomem + GMAC_DMA_CTRL_REG;
+	GMAC_DMA_CTRL_T	dma_ctrl;
+
+	dma_ctrl.bits32 = readl(dma_ctrl_reg);
+	dma_ctrl.bits.rd_enable = 1;
+	dma_ctrl.bits.td_enable = 1;
+	dma_ctrl.bits.loopback = 0;
+	dma_ctrl.bits.drop_small_ack = 0;
+	dma_ctrl.bits.rd_insert_bytes = NET_IP_ALIGN;
+	dma_ctrl.bits.rd_prot = HPROT_DATA_CACHE | HPROT_PRIVILIGED;
+	dma_ctrl.bits.rd_burst_size = HBURST_INCR8;
+	dma_ctrl.bits.rd_bus = HSIZE_8;
+	dma_ctrl.bits.td_prot = HPROT_DATA_CACHE;
+	dma_ctrl.bits.td_burst_size = HBURST_INCR8;
+	dma_ctrl.bits.td_bus = HSIZE_8;
+
+	writel(dma_ctrl.bits32, dma_ctrl_reg);
+}
+
+static void gmac_stop_dma(struct gmac_private *gmac)
+{
+	void __iomem *dma_ctrl_reg = gmac->dma_iomem + GMAC_DMA_CTRL_REG;
+	GMAC_DMA_CTRL_T	dma_ctrl;
+
+	dma_ctrl.bits32 = readl(dma_ctrl_reg);
+	dma_ctrl.bits.rd_enable = 0;
+	dma_ctrl.bits.td_enable = 0;
+	writel(dma_ctrl.bits32, dma_ctrl_reg);
+}
+
+static int gmac_open(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	int err;
+
+	if (!dev->phydev) {
+		err = gmac_setup_phy(dev);
+		if (err) {
+			netif_err(gmac, ifup, dev,
+				"PHY init failed: %d\n", err);
+			return err;
+		}
+	}
+
+	err = request_irq(dev->irq, gmac_irq,
+		IRQF_SHARED, dev->name, dev);
+	if (unlikely(err))
+		return err;
+
+	netif_carrier_off(dev);
+	phy_start(dev->phydev);
+
+	err = toe_resize_freeq(gmac->toe, dev->dev_id);
+	if (unlikely(err))
+		goto err_stop_phy;
+
+	err = gmac_setup_rxq(dev);
+	if (unlikely(err))
+		goto err_stop_phy;
+
+	err = gmac_setup_txqs(dev);
+	if (unlikely(err)) {
+		gmac_cleanup_rxq(dev);
+		goto err_stop_phy;
+	}
+
+	napi_enable(&gmac->napi);
+
+	gmac_start_dma(gmac);
+	gmac_enable_irq(dev, 1);
+	gmac_enable_tx_rx(dev);
+	netif_tx_start_all_queues(dev);
+
+	hrtimer_init(&gmac->rx_coalesce_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	gmac->rx_coalesce_timer.function = &gmac_coalesce_delay_expired;
+	return 0;
+
+err_stop_phy:
+	phy_stop(dev->phydev);
+	free_irq(dev->irq, dev);
+	return err;
+}
+
+static int gmac_stop(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+
+	hrtimer_cancel(&gmac->rx_coalesce_timer);
+	netif_tx_stop_all_queues(dev);
+	gmac_disable_tx_rx(dev);
+	gmac_stop_dma(gmac);
+	napi_disable(&gmac->napi);
+
+	gmac_enable_irq(dev, 0);
+	gmac_cleanup_rxq(dev);
+	gmac_cleanup_txqs(dev);
+
+	phy_stop(dev->phydev);
+	free_irq(dev->irq, dev);
+
+	gmac_update_hw_stats(dev);
+	return 0;
+}
+
+static void gmac_set_rx_mode(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct netdev_hw_addr *ha;
+	__u32 mc_filter[2];
+	unsigned bit_nr;
+	GMAC_RX_FLTR_T filter = { .bits = {
+		.broadcast = 1,
+		.multicast = 1,
+		.unicast = 1,
+	} };
+
+	mc_filter[1] = mc_filter[0] = 0;
+
+	if (dev->flags & IFF_PROMISC) {
+		filter.bits.error = 1;
+		filter.bits.promiscuous = 1;
+	} else if (!(dev->flags & IFF_ALLMULTI)) {
+		mc_filter[1] = mc_filter[0] = 0;
+		netdev_for_each_mc_addr(ha, dev) {
+			bit_nr = ~crc32_le(~0, ha->addr, ETH_ALEN) & 0x3f;
+			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 0x1f);
+		}
+	}
+
+	writel(mc_filter[0], gmac->ctl_iomem + GMAC_MCAST_FIL0);
+	writel(mc_filter[1], gmac->ctl_iomem + GMAC_MCAST_FIL1);
+	writel(filter.bits32, gmac->ctl_iomem + GMAC_RX_FLTR);
+}
+
+static void __gmac_set_mac_address(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	__le32 addr[3];
+
+	memset(addr, 0, sizeof(addr));
+	memcpy(addr, dev->dev_addr, ETH_ALEN);
+
+	writel(le32_to_cpu(addr[0]), gmac->ctl_iomem + GMAC_STA_ADD0);
+	writel(le32_to_cpu(addr[1]), gmac->ctl_iomem + GMAC_STA_ADD1);
+	writel(le32_to_cpu(addr[2]), gmac->ctl_iomem + GMAC_STA_ADD2);
+}
+
+static int gmac_set_mac_address(struct net_device *dev, void *addr)
+{
+	struct sockaddr *sa = addr;
+
+	memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
+	__gmac_set_mac_address(dev);
+
+	return 0;
+}
+
+static void gmac_clear_hw_stats(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+
+	readl(gmac->ctl_iomem + GMAC_IN_DISCARDS);
+	readl(gmac->ctl_iomem + GMAC_IN_ERRORS);
+	readl(gmac->ctl_iomem + GMAC_IN_MCAST);
+	readl(gmac->ctl_iomem + GMAC_IN_BCAST);
+	readl(gmac->ctl_iomem + GMAC_IN_MAC1);
+	readl(gmac->ctl_iomem + GMAC_IN_MAC2);
+}
+
+static struct rtnl_link_stats64 *gmac_get_stats64(struct net_device *dev,
+	struct rtnl_link_stats64 *storage)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	unsigned int start;
+
+	gmac_update_hw_stats(dev);
+
+	/* racing with RX NAPI */
+	do {
+		start = u64_stats_fetch_begin(&gmac->rx_stats_syncp);
+
+		storage->rx_packets = gmac->stats.rx_packets;
+		storage->rx_bytes = gmac->stats.rx_bytes;
+		storage->rx_errors = gmac->stats.rx_errors;
+		storage->rx_dropped = gmac->stats.rx_dropped;
+
+		storage->rx_length_errors = gmac->stats.rx_length_errors;
+		storage->rx_over_errors = gmac->stats.rx_over_errors;
+		storage->rx_crc_errors = gmac->stats.rx_crc_errors;
+		storage->rx_frame_errors = gmac->stats.rx_frame_errors;
+
+	} while (u64_stats_fetch_retry(&gmac->rx_stats_syncp, start));
+
+	/* racing with MIB and TX completion interrupts */
+	do {
+		start = u64_stats_fetch_begin(&gmac->ir_stats_syncp);
+
+		storage->tx_errors = gmac->stats.tx_errors;
+		storage->tx_packets = gmac->stats.tx_packets;
+		storage->tx_bytes = gmac->stats.tx_bytes;
+
+		storage->multicast = gmac->stats.multicast;
+		storage->rx_missed_errors = gmac->stats.rx_missed_errors;
+		storage->rx_fifo_errors = gmac->stats.rx_fifo_errors;
+
+	} while (u64_stats_fetch_retry(&gmac->ir_stats_syncp, start));
+
+	/* racing with hard_start_xmit */
+	do {
+		start = u64_stats_fetch_begin(&gmac->tx_stats_syncp);
+
+		storage->tx_dropped = gmac->stats.tx_dropped;
+
+	} while (u64_stats_fetch_retry(&gmac->tx_stats_syncp, start));
+
+	storage->rx_dropped += storage->rx_missed_errors;
+
+	return storage;
+}
+
+static int gmac_change_mtu(struct net_device *dev, int new_mtu)
+{
+	int max_len = gmac_pick_rx_max_len(new_mtu);
+
+	if (max_len < 0)
+		return -EINVAL;
+
+	gmac_disable_tx_rx(dev);
+
+	dev->mtu = new_mtu;
+	gmac_update_config0_reg(dev,
+		max_len << CONFIG0_MAXLEN_SHIFT,
+		CONFIG0_MAXLEN_MASK);
+
+	netdev_update_features(dev);
+
+	gmac_enable_tx_rx(dev);
+
+	return 0;
+}
+
+static netdev_features_t gmac_fix_features(struct net_device *dev, netdev_features_t features)
+{
+	if (dev->mtu + ETH_HLEN + VLAN_HLEN > MTU_SIZE_BIT_MASK)
+		features &= ~GMAC_OFFLOAD_FEATURES;
+
+	return features;
+}
+
+static int gmac_set_features(struct net_device *dev, netdev_features_t features)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	int enable = features & NETIF_F_RXCSUM;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&gmac->config_lock, flags);
+
+	reg = readl(gmac->ctl_iomem + GMAC_CONFIG0);
+	reg = enable ? reg | CONFIG0_RX_CHKSUM : reg & ~CONFIG0_RX_CHKSUM;
+	writel(reg, gmac->ctl_iomem + GMAC_CONFIG0);
+
+	spin_unlock_irqrestore(&gmac->config_lock, flags);
+	return 0;
+}
+
+static int gmac_get_sset_count(struct net_device *dev, int sset)
+{
+	return sset == ETH_SS_STATS ? GMAC_STATS_NUM : 0;
+}
+
+static void gmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	if (stringset != ETH_SS_STATS)
+		return;
+
+	memcpy(data, gmac_stats_strings, sizeof(gmac_stats_strings));
+}
+
+static void gmac_get_ethtool_stats(struct net_device *dev,
+	struct ethtool_stats *estats, u64 *values)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	unsigned int start;
+	u64 *p;
+	int i;
+
+	gmac_update_hw_stats(dev);
+
+	/* racing with MIB interrupt */
+	do {
+		p = values;
+		start = u64_stats_fetch_begin(&gmac->ir_stats_syncp);
+
+		for (i = 0; i < RX_STATS_NUM; ++i)
+			*p++ = gmac->hw_stats[i];
+
+	} while (u64_stats_fetch_retry(&gmac->ir_stats_syncp, start));
+	values = p;
+
+	/* racing with RX NAPI */
+	do {
+		p = values;
+		start = u64_stats_fetch_begin(&gmac->rx_stats_syncp);
+
+		for (i = 0; i < RX_STATUS_NUM; ++i)
+			*p++ = gmac->rx_stats[i];
+		for (i = 0; i < RX_CHKSUM_NUM; ++i)
+			*p++ = gmac->rx_csum_stats[i];
+		*p++ = gmac->rx_napi_exits;
+
+	} while (u64_stats_fetch_retry(&gmac->rx_stats_syncp, start));
+	values = p;
+
+	/* racing with TX start_xmit */
+	do {
+		p = values;
+		start = u64_stats_fetch_begin(&gmac->tx_stats_syncp);
+
+		for (i = 0; i < TX_MAX_FRAGS; ++i) {
+			*values++ = gmac->tx_frag_stats[i];
+			gmac->tx_frag_stats[i] = 0;
+		}
+		*values++ = gmac->tx_frags_linearized;
+		*values++ = gmac->tx_hw_csummed;
+
+	} while (u64_stats_fetch_retry(&gmac->tx_stats_syncp, start));
+}
+
+static int gmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	if (!dev->phydev)
+		return -ENXIO;
+	return phy_ethtool_gset(dev->phydev, cmd);
+}
+
+static int gmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	if (!dev->phydev)
+		return -ENXIO;
+	return phy_ethtool_sset(dev->phydev, cmd);
+}
+
+static int gmac_nway_reset(struct net_device *dev)
+{
+	if (!dev->phydev)
+		return -ENXIO;
+	return phy_start_aneg(dev->phydev);
+}
+
+static void gmac_get_pauseparam(struct net_device *dev,
+	struct ethtool_pauseparam *pparam)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	GMAC_CONFIG0_T config0;
+
+	config0.bits32 = readl(gmac->ctl_iomem + GMAC_CONFIG0);
+
+	pparam->rx_pause = config0.bits.rx_fc_en;
+	pparam->tx_pause = config0.bits.tx_fc_en;
+	pparam->autoneg = true;
+}
+
+static void gmac_get_ringparam(struct net_device *dev,
+	struct ethtool_ringparam *rp)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	GMAC_CONFIG0_T config0;
+
+	config0.bits32 = readl(gmac->ctl_iomem + GMAC_CONFIG0);
+
+	rp->rx_max_pending = 1 << 15;
+	rp->rx_mini_max_pending = 0;
+	rp->rx_jumbo_max_pending = 0;
+	rp->tx_max_pending = 1 << 15;
+
+	rp->rx_pending = 1 << gmac->rxq_order;
+	rp->rx_mini_pending = 0;
+	rp->rx_jumbo_pending = 0;
+	rp->tx_pending = 1 << gmac->txq_order;
+}
+
+static int toe_resize_freeq(struct toe_private *toe, int changing_dev_id);
+
+static int gmac_set_ringparam(struct net_device *dev,
+	struct ethtool_ringparam *rp)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = gmac->toe;
+	int err = 0;
+
+	if (netif_running(dev))
+		return -EBUSY;
+
+	if (rp->rx_pending) {
+		gmac->rxq_order = min(15, ilog2(rp->rx_pending - 1) + 1);
+		err = toe_resize_freeq(toe, dev->dev_id);
+	}
+
+	if (rp->tx_pending)
+	{
+		gmac->txq_order = min(15, ilog2(rp->tx_pending - 1) + 1);
+		gmac->irq_every_tx_packets = 1 << (gmac->txq_order - 2);
+	}
+
+	return err;
+}
+
+static int gmac_get_coalesce(struct net_device *dev,
+	struct ethtool_coalesce *ecmd)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+
+	ecmd->rx_max_coalesced_frames = 1;
+	ecmd->tx_max_coalesced_frames = gmac->irq_every_tx_packets;
+	ecmd->rx_coalesce_usecs = gmac->rx_coalesce_nsecs/1000;
+
+	return 0;
+}
+
+static int gmac_set_coalesce(struct net_device *dev,
+	struct ethtool_coalesce *ecmd)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+
+	if (ecmd->tx_max_coalesced_frames < 1)
+		return -EINVAL;
+	if (ecmd->tx_max_coalesced_frames >= 1 << gmac->txq_order)
+		return -EINVAL;
+
+	gmac->irq_every_tx_packets = ecmd->tx_max_coalesced_frames;
+	gmac->rx_coalesce_nsecs = ecmd->rx_coalesce_usecs * 1000;
+
+	return 0;
+}
+
+static u32 gmac_get_msglevel(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	return gmac->msg_enable;
+}
+
+static void gmac_set_msglevel(struct net_device *dev, u32 level)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	gmac->msg_enable = level;
+}
+
+static void gmac_get_drvinfo(struct net_device *dev,
+	struct ethtool_drvinfo *info)
+{
+	strcpy(info->driver,  DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	strcpy(info->bus_info, dev->dev_id ? "1" : "0");
+}
+
+static const struct net_device_ops gmac_351x_ops = {
+	.ndo_init		= gmac_init,
+	.ndo_uninit		= gmac_uninit,
+	.ndo_open		= gmac_open,
+	.ndo_stop		= gmac_stop,
+	.ndo_start_xmit		= gmac_start_xmit,
+	.ndo_tx_timeout		= gmac_tx_timeout,
+	.ndo_set_rx_mode	= gmac_set_rx_mode,
+	.ndo_set_mac_address	= gmac_set_mac_address,
+	.ndo_get_stats64	= gmac_get_stats64,
+	.ndo_change_mtu		= gmac_change_mtu,
+	.ndo_fix_features	= gmac_fix_features,
+	.ndo_set_features	= gmac_set_features,
+};
+
+static const struct ethtool_ops gmac_351x_ethtool_ops = {
+	.get_sset_count	= gmac_get_sset_count,
+	.get_strings	= gmac_get_strings,
+	.get_ethtool_stats = gmac_get_ethtool_stats,
+	.get_settings	= gmac_get_settings,
+	.set_settings	= gmac_set_settings,
+	.get_link	= ethtool_op_get_link,
+	.nway_reset	= gmac_nway_reset,
+	.get_pauseparam	= gmac_get_pauseparam,
+	.get_ringparam	= gmac_get_ringparam,
+	.set_ringparam	= gmac_set_ringparam,
+	.get_coalesce	= gmac_get_coalesce,
+	.set_coalesce	= gmac_set_coalesce,
+	.get_msglevel	= gmac_get_msglevel,
+	.set_msglevel	= gmac_set_msglevel,
+	.get_drvinfo	= gmac_get_drvinfo,
+};
+
+static int gmac_init_netdev(struct toe_private *toe, int num,
+	struct platform_device *pdev)
+{
+	struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data;
+	struct gmac_private *gmac;
+	struct net_device *dev;
+	int irq, err;
+
+	if (!pdata->bus_id[num])
+		return 0;
+
+	irq = platform_get_irq(pdev, num);
+	if (irq < 0) {
+		dev_err(toe->dev, "No IRQ for ethernet device #%d\n", num);
+		return irq;
+	}
+
+	dev = alloc_etherdev_mq(sizeof(*gmac), TX_QUEUE_NUM);
+	if (!dev) {
+		dev_err(toe->dev, "Can't allocate ethernet device #%d\n", num);
+		return -ENOMEM;
+	}
+
+	gmac = netdev_priv(dev);
+	gmac->num = num;
+	gmac->toe = toe;
+	SET_NETDEV_DEV(dev, toe->dev);
+
+	toe->netdev[num] = dev;
+	dev->dev_id = num;
+
+	gmac->ctl_iomem = toe->iomem + TOE_GMAC_BASE(num);
+	gmac->dma_iomem = toe->iomem + TOE_GMAC_DMA_BASE(num);
+	dev->irq = irq;
+
+	dev->netdev_ops = &gmac_351x_ops;
+	dev->ethtool_ops = &gmac_351x_ethtool_ops;
+
+	spin_lock_init(&gmac->config_lock);
+	gmac_clear_hw_stats(dev);
+
+	dev->hw_features = GMAC_OFFLOAD_FEATURES;
+	dev->features |= GMAC_OFFLOAD_FEATURES | NETIF_F_GRO;
+
+	gmac->freeq_refill = 0;
+	netif_napi_add(dev, &gmac->napi, gmac_napi_poll, DEFAULT_NAPI_WEIGHT);
+
+	if (is_valid_ether_addr((void *)toe->mac_addr[num]))
+		memcpy(dev->dev_addr, toe->mac_addr[num], ETH_ALEN);
+	else
+		random_ether_addr(dev->dev_addr);
+	__gmac_set_mac_address(dev);
+
+	err = gmac_setup_phy(dev);
+	if (err)
+		netif_warn(gmac, probe, dev,
+			"PHY init failed: %d, deferring to ifup time\n", err);
+
+	err = register_netdev(dev);
+	if (!err)
+	{
+		pr_info(DRV_NAME " %s: irq %d, dma base 0x%p, io base 0x%p\n",
+			dev->name, irq, gmac->dma_iomem, gmac->ctl_iomem);
+		return 0;
+	}
+
+	toe->netdev[num] = NULL;
+	free_netdev(dev);
+	return err;
+}
+
+static irqreturn_t toe_irq_thread(int irq, void *data)
+{
+	struct toe_private *toe = data;
+	void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG;
+	void __iomem *irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG;
+	unsigned long irqmask = SWFQ_EMPTY_INT_BIT;
+	unsigned long flags;
+
+	toe_fill_freeq(toe, 0);
+
+	/* Ack and enable interrupt */
+	spin_lock_irqsave(&toe->irq_lock, flags);
+	writel(irqmask, irqif_reg);
+	irqmask |= readl(irqen_reg);
+	writel(irqmask, irqen_reg);
+	spin_unlock_irqrestore(&toe->irq_lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t toe_irq(int irq, void *data)
+{
+	struct toe_private *toe = data;
+	void __iomem *irqif_reg = toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG;
+	void __iomem *irqen_reg = toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG;
+	unsigned long val, en;
+	irqreturn_t ret = IRQ_NONE;
+
+	spin_lock(&toe->irq_lock);
+
+	val = readl(irqif_reg);
+	en = readl(irqen_reg);
+
+	if (val & en & SWFQ_EMPTY_INT_BIT) {
+		en &= ~(SWFQ_EMPTY_INT_BIT | GMAC0_RX_OVERRUN_INT_BIT
+					   | GMAC1_RX_OVERRUN_INT_BIT);
+		writel(en, irqen_reg);
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	spin_unlock(&toe->irq_lock);
+	return ret;
+}
+
+static int toe_init(struct toe_private *toe,
+	struct platform_device *pdev)
+{
+	int err;
+
+	writel(0, toe->iomem + GLOBAL_SW_FREEQ_BASE_SIZE_REG);
+	writel(0, toe->iomem + GLOBAL_HW_FREEQ_BASE_SIZE_REG);
+	writel(0, toe->iomem + GLOBAL_SWFQ_RWPTR_REG);
+	writel(0, toe->iomem + GLOBAL_HWFQ_RWPTR_REG);
+
+	toe->freeq_frag_order = DEFAULT_RX_BUF_ORDER;
+	toe->freeq_order = ~0;
+
+	err = request_threaded_irq(toe->irq, toe_irq,
+		toe_irq_thread, IRQF_SHARED, DRV_NAME " toe", toe);
+	if (err)
+		goto err_freeq;
+
+	return 0;
+
+err_freeq:
+	toe_cleanup_freeq(toe);
+	return err;
+}
+
+static void toe_deinit(struct toe_private *toe)
+{
+	free_irq(toe->irq, toe);
+	toe_cleanup_freeq(toe);
+}
+
+static int toe_reset(struct toe_private *toe)
+{
+	unsigned int reg = 0, retry = 5;
+
+	reg = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
+		GLOBAL_RESET));
+	reg |= RESET_GMAC1 | RESET_GMAC0;
+	writel(reg, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
+		GLOBAL_RESET));
+
+	do {
+		udelay(2);
+		reg = readl((void __iomem*)(toe->iomem +
+			GLOBAL_TOE_VERSION_REG));
+		barrier();
+	} while (!reg && --retry);
+
+	return reg ? 0 : -EIO;
+}
+
+/*
+ * Interrupt config:
+ *
+ *	GMAC0 intr bits ------> int0 ----> eth0
+ *	GMAC1 intr bits ------> int1 ----> eth1
+ *	TOE intr -------------> int1 ----> eth1
+ *	Classification Intr --> int0 ----> eth0
+ *	Default Q0 -----------> int0 ----> eth0
+ *	Default Q1 -----------> int1 ----> eth1
+ *	FreeQ intr -----------> int1 ----> eth1
+ */
+static void toe_init_irq(struct toe_private *toe)
+{
+	writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_0_REG);
+	writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_1_REG);
+	writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_2_REG);
+	writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_3_REG);
+	writel(0, toe->iomem + GLOBAL_INTERRUPT_ENABLE_4_REG);
+
+	writel(0xCCFC0FC0, toe->iomem + GLOBAL_INTERRUPT_SELECT_0_REG);
+	writel(0x00F00002, toe->iomem + GLOBAL_INTERRUPT_SELECT_1_REG);
+	writel(0xFFFFFFFF, toe->iomem + GLOBAL_INTERRUPT_SELECT_2_REG);
+	writel(0xFFFFFFFF, toe->iomem + GLOBAL_INTERRUPT_SELECT_3_REG);
+	writel(0xFF000003, toe->iomem + GLOBAL_INTERRUPT_SELECT_4_REG);
+
+	/* edge-triggered interrupts packed to level-triggered one... */
+	writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_0_REG);
+	writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_1_REG);
+	writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_2_REG);
+	writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_3_REG);
+	writel(~0, toe->iomem + GLOBAL_INTERRUPT_STATUS_4_REG);
+}
+
+static void toe_save_mac_addr(struct toe_private *toe,
+			struct platform_device *pdev)
+{
+	struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data;
+	void __iomem *ctl;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		if (pdata->bus_id[i]) {
+			ctl = toe->iomem + TOE_GMAC_BASE(i);
+			toe->mac_addr[i][0] = cpu_to_le32(readl(ctl + GMAC_STA_ADD0));
+			toe->mac_addr[i][1] = cpu_to_le32(readl(ctl + GMAC_STA_ADD1));
+			toe->mac_addr[i][2] = cpu_to_le32(readl(ctl + GMAC_STA_ADD2));
+		}
+	}
+}
+
+static int gemini_gmac_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct toe_private *toe;
+	int irq, retval;
+
+	if (!pdev->dev.platform_data)
+		return -EINVAL;
+
+	irq = platform_get_irq(pdev, 1);
+	if (irq < 0)
+		return irq;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "can't get device resources\n");
+		return -ENODEV;
+	}
+
+	toe = kzalloc(sizeof(*toe), GFP_KERNEL);
+	if (!toe)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, toe);
+	toe->dev = &pdev->dev;
+	toe->irq = irq;
+
+	toe->iomem = ioremap(res->start, resource_size(res));
+	if (!toe->iomem) {
+		dev_err(toe->dev, "ioremap failed\n");
+		retval = -EIO;
+		goto err_data;
+	}
+
+	toe_save_mac_addr(toe, pdev);
+
+	retval = toe_reset(toe);
+	if (retval < 0)
+		goto err_unmap;
+
+	pr_info(DRV_NAME " toe: irq %d, io base 0x%08x, version %d\n",
+		irq, res->start, retval);
+
+	spin_lock_init(&toe->irq_lock);
+	spin_lock_init(&toe->freeq_lock);
+
+	toe_init_irq(toe);
+
+	retval = toe_init(toe, pdev);
+	if (retval)
+		goto err_unmap;
+
+	retval = gmac_init_netdev(toe, 0, pdev);
+	if (retval)
+		goto err_uninit;
+
+	retval = gmac_init_netdev(toe, 1, pdev);
+	if (retval)
+		goto err_uninit;
+
+	return 0;
+
+err_uninit:
+	if (toe->netdev[0])
+		unregister_netdev(toe->netdev[0]);
+	toe_deinit(toe);
+err_unmap:
+	iounmap(toe->iomem);
+err_data:
+	kfree(toe);
+	return retval;
+}
+
+static int gemini_gmac_remove(struct platform_device *pdev)
+{
+	struct toe_private *toe = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if (toe->netdev[i])
+			unregister_netdev(toe->netdev[i]);
+
+	toe_init_irq(toe);
+	toe_deinit(toe);
+
+	iounmap(toe->iomem);
+	kfree(toe);
+
+	return 0;
+}
+
+static struct platform_driver gemini_gmac_driver = {
+	.probe		= gemini_gmac_probe,
+	.remove		= gemini_gmac_remove,
+	.driver.name	= DRV_NAME,
+	.driver.owner	= THIS_MODULE,
+};
+
+static int __init gemini_gmac_init(void)
+{
+#ifdef CONFIG_MDIO_GPIO_MODULE
+	request_module("mdio-gpio");
+#endif
+	return platform_driver_register(&gemini_gmac_driver);
+}
+
+static void __exit gemini_gmac_exit(void)
+{
+	platform_driver_unregister(&gemini_gmac_driver);
+}
+
+module_init(gemini_gmac_init);
+module_exit(gemini_gmac_exit);
diff --git a/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x_hw.h b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x_hw.h
new file mode 100644
index 0000000000..f7bff5ace2
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/net/ethernet/gemini/sl351x_hw.h
@@ -0,0 +1,1436 @@
+/*
+ *  Register definitions for Gemini LEPUS GMAC Ethernet device driver.
+ *
+ *  Copyright (C) 2006, Storlink, Corp.
+ *  Copyright (C) 2008-2009, Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *  Copyright (C) 2010, Michał Mirosław <mirq-linux@rere.qmqm.pl>
+ *
+ * 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.
+ */
+#ifndef _GMAC_HW_H
+#define _GMAC_HW_H
+
+#include <linux/bitops.h>
+
+/*
+ * Base Registers
+ */
+#define TOE_NONTOE_QUE_HDR_BASE		0x2000
+#define TOE_TOE_QUE_HDR_BASE		0x3000
+#define TOE_V_BIT_BASE			0x4000
+#define TOE_A_BIT_BASE			0x6000
+#define TOE_GMAC_DMA_BASE(x)		(0x8000 + 0x4000 * (x))
+#define TOE_GMAC_BASE(x)		(0xA000 + 0x4000 * (x))
+
+/*
+ * Queue ID
+ */
+#define TOE_SW_FREE_QID			0x00
+#define TOE_HW_FREE_QID			0x01
+#define TOE_GMAC0_SW_TXQ0_QID		0x02
+#define TOE_GMAC0_SW_TXQ1_QID		0x03
+#define TOE_GMAC0_SW_TXQ2_QID		0x04
+#define TOE_GMAC0_SW_TXQ3_QID		0x05
+#define TOE_GMAC0_SW_TXQ4_QID		0x06
+#define TOE_GMAC0_SW_TXQ5_QID		0x07
+#define TOE_GMAC0_HW_TXQ0_QID		0x08
+#define TOE_GMAC0_HW_TXQ1_QID		0x09
+#define TOE_GMAC0_HW_TXQ2_QID		0x0A
+#define TOE_GMAC0_HW_TXQ3_QID		0x0B
+#define TOE_GMAC1_SW_TXQ0_QID		0x12
+#define TOE_GMAC1_SW_TXQ1_QID		0x13
+#define TOE_GMAC1_SW_TXQ2_QID		0x14
+#define TOE_GMAC1_SW_TXQ3_QID		0x15
+#define TOE_GMAC1_SW_TXQ4_QID		0x16
+#define TOE_GMAC1_SW_TXQ5_QID		0x17
+#define TOE_GMAC1_HW_TXQ0_QID		0x18
+#define TOE_GMAC1_HW_TXQ1_QID		0x19
+#define TOE_GMAC1_HW_TXQ2_QID		0x1A
+#define TOE_GMAC1_HW_TXQ3_QID		0x1B
+#define TOE_GMAC0_DEFAULT_QID		0x20
+#define TOE_GMAC1_DEFAULT_QID		0x21
+#define TOE_CLASSIFICATION_QID(x)	(0x22 + x)	/* 0x22 ~ 0x2F */
+#define TOE_TOE_QID(x)			(0x40 + x)	/* 0x40 ~ 0x7F */
+
+/*
+ * old info:
+ * TOE DMA Queue Size should be 2^n, n = 6...12
+ * TOE DMA Queues are the following queue types:
+ *		SW Free Queue, HW Free Queue,
+ *		GMAC 0/1 SW TX Q0-5, and GMAC 0/1 HW TX Q0-5
+ * The base address and descriptor number are configured at
+ * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004)
+ */
+
+#define GET_WPTR(addr)			__raw_readw((addr) + 2)
+#define GET_RPTR(addr)			__raw_readw((addr))
+#define SET_WPTR(addr, data)		__raw_writew((data), (addr) + 2)
+#define SET_RPTR(addr, data)		__raw_writew((data), (addr))
+#define __RWPTR_NEXT(x, mask)		(((unsigned int)(x) + 1) & (mask))
+#define __RWPTR_PREV(x, mask)		(((unsigned int)(x) - 1) & (mask))
+#define __RWPTR_DISTANCE(r, w, mask)	(((unsigned int)(w) - (r)) & (mask))
+#define __RWPTR_MASK(order)		((1 << (order)) - 1)
+#define RWPTR_NEXT(x, order)		__RWPTR_NEXT((x), __RWPTR_MASK((order)))
+#define RWPTR_PREV(x, order)		__RWPTR_PREV((x), __RWPTR_MASK((order)))
+#define RWPTR_DISTANCE(r, w, order)	__RWPTR_DISTANCE((r), (w), \
+						__RWPTR_MASK((order)))
+
+/*
+ * Global registers
+ * #define TOE_GLOBAL_BASE			(TOE_BASE + 0x0000)
+ * Base 0x60000000
+ */
+#define GLOBAL_TOE_VERSION_REG		0x0000
+#define GLOBAL_SW_FREEQ_BASE_SIZE_REG	0x0004
+#define GLOBAL_HW_FREEQ_BASE_SIZE_REG	0x0008
+#define GLOBAL_DMA_SKB_SIZE_REG		0x0010
+#define GLOBAL_SWFQ_RWPTR_REG		0x0014
+#define GLOBAL_HWFQ_RWPTR_REG		0x0018
+#define GLOBAL_INTERRUPT_STATUS_0_REG	0x0020
+#define GLOBAL_INTERRUPT_ENABLE_0_REG	0x0024
+#define GLOBAL_INTERRUPT_SELECT_0_REG	0x0028
+#define GLOBAL_INTERRUPT_STATUS_1_REG	0x0030
+#define GLOBAL_INTERRUPT_ENABLE_1_REG	0x0034
+#define GLOBAL_INTERRUPT_SELECT_1_REG	0x0038
+#define GLOBAL_INTERRUPT_STATUS_2_REG	0x0040
+#define GLOBAL_INTERRUPT_ENABLE_2_REG	0x0044
+#define GLOBAL_INTERRUPT_SELECT_2_REG	0x0048
+#define GLOBAL_INTERRUPT_STATUS_3_REG	0x0050
+#define GLOBAL_INTERRUPT_ENABLE_3_REG	0x0054
+#define GLOBAL_INTERRUPT_SELECT_3_REG	0x0058
+#define GLOBAL_INTERRUPT_STATUS_4_REG	0x0060
+#define GLOBAL_INTERRUPT_ENABLE_4_REG	0x0064
+#define GLOBAL_INTERRUPT_SELECT_4_REG	0x0068
+#define GLOBAL_HASH_TABLE_BASE_REG	0x006C
+#define GLOBAL_QUEUE_THRESHOLD_REG	0x0070
+
+/*
+ * GMAC 0/1 DMA/TOE register
+ * #define TOE_GMAC0_DMA_BASE		(TOE_BASE + 0x8000)
+ * #define TOE_GMAC1_DMA_BASE		(TOE_BASE + 0xC000)
+ * Base 0x60008000 or 0x6000C000
+ */
+#define GMAC_DMA_CTRL_REG		0x0000
+#define GMAC_TX_WEIGHTING_CTRL_0_REG	0x0004
+#define GMAC_TX_WEIGHTING_CTRL_1_REG	0x0008
+#define GMAC_SW_TX_QUEUE0_PTR_REG	0x000C
+#define GMAC_SW_TX_QUEUE1_PTR_REG	0x0010
+#define GMAC_SW_TX_QUEUE2_PTR_REG	0x0014
+#define GMAC_SW_TX_QUEUE3_PTR_REG	0x0018
+#define GMAC_SW_TX_QUEUE4_PTR_REG	0x001C
+#define GMAC_SW_TX_QUEUE5_PTR_REG	0x0020
+#define GMAC_SW_TX_QUEUE_PTR_REG(i)	(GMAC_SW_TX_QUEUE0_PTR_REG + 4 * (i))
+#define GMAC_HW_TX_QUEUE0_PTR_REG	0x0024
+#define GMAC_HW_TX_QUEUE1_PTR_REG	0x0028
+#define GMAC_HW_TX_QUEUE2_PTR_REG	0x002C
+#define GMAC_HW_TX_QUEUE3_PTR_REG	0x0030
+#define GMAC_HW_TX_QUEUE_PTR_REG(i)	(GMAC_HW_TX_QUEUE0_PTR_REG + 4 * (i))
+#define GMAC_DMA_TX_FIRST_DESC_REG	0x0038
+#define GMAC_DMA_TX_CURR_DESC_REG	0x003C
+#define GMAC_DMA_TX_DESC_WORD0_REG	0x0040
+#define GMAC_DMA_TX_DESC_WORD1_REG	0x0044
+#define GMAC_DMA_TX_DESC_WORD2_REG	0x0048
+#define GMAC_DMA_TX_DESC_WORD3_REG	0x004C
+#define GMAC_SW_TX_QUEUE_BASE_REG	0x0050
+#define GMAC_HW_TX_QUEUE_BASE_REG	0x0054
+#define GMAC_DMA_RX_FIRST_DESC_REG	0x0058
+#define GMAC_DMA_RX_CURR_DESC_REG	0x005C
+#define GMAC_DMA_RX_DESC_WORD0_REG	0x0060
+#define GMAC_DMA_RX_DESC_WORD1_REG	0x0064
+#define GMAC_DMA_RX_DESC_WORD2_REG	0x0068
+#define GMAC_DMA_RX_DESC_WORD3_REG	0x006C
+#define GMAC_HASH_ENGINE_REG0		0x0070
+#define GMAC_HASH_ENGINE_REG1		0x0074
+/* matching rule 0 Control register 0 */
+#define GMAC_MR0CR0			0x0078
+#define GMAC_MR0CR1			0x007C
+#define GMAC_MR0CR2			0x0080
+#define GMAC_MR1CR0			0x0084
+#define GMAC_MR1CR1			0x0088
+#define GMAC_MR1CR2			0x008C
+#define GMAC_MR2CR0			0x0090
+#define GMAC_MR2CR1			0x0094
+#define GMAC_MR2CR2			0x0098
+#define GMAC_MR3CR0			0x009C
+#define GMAC_MR3CR1			0x00A0
+#define GMAC_MR3CR2			0x00A4
+/* Support Protocol Regsister 0 */
+#define GMAC_SPR0			0x00A8
+#define GMAC_SPR1			0x00AC
+#define GMAC_SPR2			0x00B0
+#define GMAC_SPR3			0x00B4
+#define GMAC_SPR4			0x00B8
+#define GMAC_SPR5			0x00BC
+#define GMAC_SPR6			0x00C0
+#define GMAC_SPR7			0x00C4
+/* GMAC Hash/Rx/Tx AHB Weighting register */
+#define GMAC_AHB_WEIGHT_REG		0x00C8
+
+/*
+ * TOE GMAC 0/1 register
+ * #define TOE_GMAC0_BASE				(TOE_BASE + 0xA000)
+ * #define TOE_GMAC1_BASE				(TOE_BASE + 0xE000)
+ * Base 0x6000A000 or 0x6000E000
+ */
+enum GMAC_REGISTER {
+	GMAC_STA_ADD0	= 0x0000,
+	GMAC_STA_ADD1	= 0x0004,
+	GMAC_STA_ADD2	= 0x0008,
+	GMAC_RX_FLTR	= 0x000c,
+	GMAC_MCAST_FIL0 = 0x0010,
+	GMAC_MCAST_FIL1 = 0x0014,
+	GMAC_CONFIG0	= 0x0018,
+	GMAC_CONFIG1	= 0x001c,
+	GMAC_CONFIG2	= 0x0020,
+	GMAC_CONFIG3	= 0x0024,
+	GMAC_RESERVED	= 0x0028,
+	GMAC_STATUS	= 0x002c,
+	GMAC_IN_DISCARDS= 0x0030,
+	GMAC_IN_ERRORS  = 0x0034,
+	GMAC_IN_MCAST   = 0x0038,
+	GMAC_IN_BCAST   = 0x003c,
+	GMAC_IN_MAC1    = 0x0040,	/* for STA 1 MAC Address */
+	GMAC_IN_MAC2    = 0x0044	/* for STA 2 MAC Address */
+};
+
+#define RX_STATS_NUM	6
+
+/*
+ * DMA Queues description Ring Base Address/Size Register (offset 0x0004)
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int base_size;
+} DMA_Q_BASE_SIZE_T;
+#define DMA_Q_BASE_MASK		(~0x0f)
+
+/*
+ * DMA SKB Buffer register (offset 0x0008)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0008 {
+		unsigned int sw_skb_size : 16;	/* SW Free poll SKB Size */
+		unsigned int hw_skb_size : 16;	/* HW Free poll SKB Size */
+	} bits;
+} DMA_SKB_SIZE_T;
+
+/*
+ * DMA SW Free Queue Read/Write Pointer Register (offset 0x000C)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_000c {
+		unsigned int rptr	: 16;	/* Read Ptr, RO */
+		unsigned int wptr	: 16;	/* Write Ptr, RW */
+	} bits;
+} DMA_RWPTR_T;
+
+/*
+ * DMA HW Free Queue Read/Write Pointer Register (offset 0x0010)
+ * see DMA_RWPTR_T structure
+ */
+
+/*
+ * Interrupt Status Register 0	(offset 0x0020)
+ * Interrupt Mask Register 0	(offset 0x0024)
+ * Interrupt Select Register 0	(offset 0x0028)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0020 {
+		/* GMAC0 SW Tx Queue 0 EOF Interrupt */
+		unsigned int swtq00_eof	: 1;
+		unsigned int swtq01_eof	: 1;
+		unsigned int swtq02_eof	: 1;
+		unsigned int swtq03_eof	: 1;
+		unsigned int swtq04_eof	: 1;
+		unsigned int swtq05_eof	: 1;
+		/* GMAC1 SW Tx Queue 0 EOF Interrupt */
+		unsigned int swtq10_eof	: 1;
+		unsigned int swtq11_eof	: 1;
+		unsigned int swtq12_eof	: 1;
+		unsigned int swtq13_eof	: 1;
+		unsigned int swtq14_eof	: 1;
+		unsigned int swtq15_eof	: 1;
+		/* GMAC0 SW Tx Queue 0 Finish Interrupt */
+		unsigned int swtq00_fin	: 1;
+		unsigned int swtq01_fin	: 1;
+		unsigned int swtq02_fin	: 1;
+		unsigned int swtq03_fin	: 1;
+		unsigned int swtq04_fin	: 1;
+		unsigned int swtq05_fin	: 1;
+		/* GMAC1 SW Tx Queue 0 Finish Interrupt */
+		unsigned int swtq10_fin	: 1;
+		unsigned int swtq11_fin	: 1;
+		unsigned int swtq12_fin	: 1;
+		unsigned int swtq13_fin	: 1;
+		unsigned int swtq14_fin	: 1;
+		unsigned int swtq15_fin	: 1;
+		/* GMAC0 Rx Descriptor Protocol Error */
+		unsigned int rxPerr0	: 1;
+		/* GMAC0 AHB Bus Error while Rx */
+		unsigned int rxDerr0	: 1;
+		/* GMAC1 Rx Descriptor Protocol Error */
+		unsigned int rxPerr1	: 1;
+		/* GMAC1 AHB Bus Error while Rx */
+		unsigned int rxDerr1	: 1;
+		/* GMAC0 Tx Descriptor Protocol Error */
+		unsigned int txPerr0	: 1;
+		/* GMAC0 AHB Bus Error while Tx */
+		unsigned int txDerr0	: 1;
+		/* GMAC1 Tx Descriptor Protocol Error */
+		unsigned int txPerr1	: 1;
+		/* GMAC1 AHB Bus Error while Tx */
+		unsigned int txDerr1	: 1;
+	} bits;
+} INTR_REG0_T;
+
+#define GMAC1_TXDERR_INT_BIT		BIT(31)
+#define GMAC1_TXPERR_INT_BIT		BIT(30)
+#define GMAC0_TXDERR_INT_BIT		BIT(29)
+#define GMAC0_TXPERR_INT_BIT		BIT(28)
+#define GMAC1_RXDERR_INT_BIT		BIT(27)
+#define GMAC1_RXPERR_INT_BIT		BIT(26)
+#define GMAC0_RXDERR_INT_BIT		BIT(25)
+#define GMAC0_RXPERR_INT_BIT		BIT(24)
+#define GMAC1_SWTQ15_FIN_INT_BIT	BIT(23)
+#define GMAC1_SWTQ14_FIN_INT_BIT	BIT(22)
+#define GMAC1_SWTQ13_FIN_INT_BIT	BIT(21)
+#define GMAC1_SWTQ12_FIN_INT_BIT	BIT(20)
+#define GMAC1_SWTQ11_FIN_INT_BIT	BIT(19)
+#define GMAC1_SWTQ10_FIN_INT_BIT	BIT(18)
+#define GMAC0_SWTQ05_FIN_INT_BIT	BIT(17)
+#define GMAC0_SWTQ04_FIN_INT_BIT	BIT(16)
+#define GMAC0_SWTQ03_FIN_INT_BIT	BIT(15)
+#define GMAC0_SWTQ02_FIN_INT_BIT	BIT(14)
+#define GMAC0_SWTQ01_FIN_INT_BIT	BIT(13)
+#define GMAC0_SWTQ00_FIN_INT_BIT	BIT(12)
+#define GMAC1_SWTQ15_EOF_INT_BIT	BIT(11)
+#define GMAC1_SWTQ14_EOF_INT_BIT	BIT(10)
+#define GMAC1_SWTQ13_EOF_INT_BIT	BIT(9)
+#define GMAC1_SWTQ12_EOF_INT_BIT	BIT(8)
+#define GMAC1_SWTQ11_EOF_INT_BIT	BIT(7)
+#define GMAC1_SWTQ10_EOF_INT_BIT	BIT(6)
+#define GMAC0_SWTQ05_EOF_INT_BIT	BIT(5)
+#define GMAC0_SWTQ04_EOF_INT_BIT	BIT(4)
+#define GMAC0_SWTQ03_EOF_INT_BIT	BIT(3)
+#define GMAC0_SWTQ02_EOF_INT_BIT	BIT(2)
+#define GMAC0_SWTQ01_EOF_INT_BIT	BIT(1)
+#define GMAC0_SWTQ00_EOF_INT_BIT	BIT(0)
+
+/*
+ * Interrupt Status Register 1	(offset 0x0030)
+ * Interrupt Mask Register 1	(offset 0x0034)
+ * Interrupt Select Register 1	(offset 0x0038)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0030 {
+		unsigned int default_q0_eof	: 1;	/* Default Queue 0 EOF Interrupt */
+		unsigned int default_q1_eof	: 1;	/* Default Queue 1 EOF Interrupt */
+		unsigned int class_rx		: 14;	/* Classification Queue Rx Interrupt */
+		unsigned int hwtq00_eof		: 1;	/* GMAC0 HW Tx Queue0 EOF Interrupt */
+		unsigned int hwtq01_eof		: 1;	/* GMAC0 HW Tx Queue1 EOF Interrupt */
+		unsigned int hwtq02_eof		: 1;	/* GMAC0 HW Tx Queue2 EOF Interrupt */
+		unsigned int hwtq03_eof		: 1;	/* GMAC0 HW Tx Queue3 EOF Interrupt */
+		unsigned int hwtq10_eof		: 1;	/* GMAC1 HW Tx Queue0 EOF Interrupt */
+		unsigned int hwtq11_eof		: 1;	/* GMAC1 HW Tx Queue1 EOF Interrupt */
+		unsigned int hwtq12_eof		: 1;	/* GMAC1 HW Tx Queue2 EOF Interrupt */
+		unsigned int hwtq13_eof		: 1;	/* GMAC1 HW Tx Queue3 EOF Interrupt */
+		unsigned int toe_iq0_intr	: 1;	/* TOE Interrupt Queue 0 with Interrupts */
+		unsigned int toe_iq1_intr	: 1;	/* TOE Interrupt Queue 1 with Interrupts */
+		unsigned int toe_iq2_intr	: 1;	/* TOE Interrupt Queue 2 with Interrupts */
+		unsigned int toe_iq3_intr	: 1;	/* TOE Interrupt Queue 3 with Interrupts */
+		unsigned int toe_iq0_full	: 1;	/* TOE Interrupt Queue 0 Full Interrupt */
+		unsigned int toe_iq1_full	: 1;	/* TOE Interrupt Queue 1 Full Interrupt */
+		unsigned int toe_iq2_full	: 1;	/* TOE Interrupt Queue 2 Full Interrupt */
+		unsigned int toe_iq3_full	: 1;	/* TOE Interrupt Queue 3 Full Interrupt */
+	} bits;
+} INTR_REG1_T;
+
+#define TOE_IQ3_FULL_INT_BIT		BIT(31)
+#define TOE_IQ2_FULL_INT_BIT		BIT(30)
+#define TOE_IQ1_FULL_INT_BIT		BIT(29)
+#define TOE_IQ0_FULL_INT_BIT		BIT(28)
+#define TOE_IQ3_INT_BIT			BIT(27)
+#define TOE_IQ2_INT_BIT			BIT(26)
+#define TOE_IQ1_INT_BIT			BIT(25)
+#define TOE_IQ0_INT_BIT			BIT(24)
+#define GMAC1_HWTQ13_EOF_INT_BIT	BIT(23)
+#define GMAC1_HWTQ12_EOF_INT_BIT	BIT(22)
+#define GMAC1_HWTQ11_EOF_INT_BIT	BIT(21)
+#define GMAC1_HWTQ10_EOF_INT_BIT	BIT(20)
+#define GMAC0_HWTQ03_EOF_INT_BIT	BIT(19)
+#define GMAC0_HWTQ02_EOF_INT_BIT	BIT(18)
+#define GMAC0_HWTQ01_EOF_INT_BIT	BIT(17)
+#define GMAC0_HWTQ00_EOF_INT_BIT	BIT(16)
+#define CLASS_RX_INT_BIT(x)		BIT((x + 2))
+#define DEFAULT_Q1_INT_BIT		BIT(1)
+#define DEFAULT_Q0_INT_BIT		BIT(0)
+
+#define TOE_IQ_INT_BITS		(TOE_IQ0_INT_BIT | TOE_IQ1_INT_BIT | \
+				 TOE_IQ2_INT_BIT | TOE_IQ3_INT_BIT)
+#define	TOE_IQ_FULL_BITS	(TOE_IQ0_FULL_INT_BIT | TOE_IQ1_FULL_INT_BIT | \
+		                 TOE_IQ2_FULL_INT_BIT | TOE_IQ3_FULL_INT_BIT)
+#define	TOE_IQ_ALL_BITS		(TOE_IQ_INT_BITS | TOE_IQ_FULL_BITS)
+#define TOE_CLASS_RX_INT_BITS	0xfffc
+
+/*
+ * Interrupt Status Register 2	(offset 0x0040)
+ * Interrupt Mask Register 2	(offset 0x0044)
+ * Interrupt Select Register 2	(offset 0x0048)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0040 {
+		unsigned int toe_q0_full	: 1;	/* bit 0	TOE Queue 0 Full Interrupt */
+		unsigned int toe_q1_full	: 1;	/* bit 1	TOE Queue 1 Full Interrupt */
+		unsigned int toe_q2_full	: 1;	/* bit 2	TOE Queue 2 Full Interrupt */
+		unsigned int toe_q3_full	: 1;	/* bit 3	TOE Queue 3 Full Interrupt */
+		unsigned int toe_q4_full	: 1;	/* bit 4	TOE Queue 4 Full Interrupt */
+		unsigned int toe_q5_full	: 1;	/* bit 5	TOE Queue 5 Full Interrupt */
+		unsigned int toe_q6_full	: 1;	/* bit 6	TOE Queue 6 Full Interrupt */
+		unsigned int toe_q7_full	: 1;	/* bit 7	TOE Queue 7 Full Interrupt */
+		unsigned int toe_q8_full	: 1;	/* bit 8	TOE Queue 8 Full Interrupt */
+		unsigned int toe_q9_full	: 1;	/* bit 9	TOE Queue 9 Full Interrupt */
+		unsigned int toe_q10_full	: 1;	/* bit 10	TOE Queue 10 Full Interrupt */
+		unsigned int toe_q11_full	: 1;	/* bit 11	TOE Queue 11 Full Interrupt */
+		unsigned int toe_q12_full	: 1;	/* bit 12	TOE Queue 12 Full Interrupt */
+		unsigned int toe_q13_full	: 1;	/* bit 13	TOE Queue 13 Full Interrupt */
+		unsigned int toe_q14_full	: 1;	/* bit 14	TOE Queue 14 Full Interrupt */
+		unsigned int toe_q15_full	: 1;	/* bit 15	TOE Queue 15 Full Interrupt */
+		unsigned int toe_q16_full	: 1;	/* bit 16	TOE Queue 16 Full Interrupt */
+		unsigned int toe_q17_full	: 1;	/* bit 17	TOE Queue 17 Full Interrupt */
+		unsigned int toe_q18_full	: 1;	/* bit 18	TOE Queue 18 Full Interrupt */
+		unsigned int toe_q19_full	: 1;	/* bit 19	TOE Queue 19 Full Interrupt */
+		unsigned int toe_q20_full	: 1;	/* bit 20	TOE Queue 20 Full Interrupt */
+		unsigned int toe_q21_full	: 1;	/* bit 21	TOE Queue 21 Full Interrupt */
+		unsigned int toe_q22_full	: 1;	/* bit 22	TOE Queue 22 Full Interrupt */
+		unsigned int toe_q23_full	: 1;	/* bit 23	TOE Queue 23 Full Interrupt */
+		unsigned int toe_q24_full	: 1;	/* bit 24	TOE Queue 24 Full Interrupt */
+		unsigned int toe_q25_full	: 1;	/* bit 25	TOE Queue 25 Full Interrupt */
+		unsigned int toe_q26_full	: 1;	/* bit 26	TOE Queue 26 Full Interrupt */
+		unsigned int toe_q27_full	: 1;	/* bit 27	TOE Queue 27 Full Interrupt */
+		unsigned int toe_q28_full	: 1;	/* bit 28	TOE Queue 28 Full Interrupt */
+		unsigned int toe_q29_full	: 1;	/* bit 29	TOE Queue 29 Full Interrupt */
+		unsigned int toe_q30_full	: 1;	/* bit 30	TOE Queue 30 Full Interrupt */
+		unsigned int toe_q31_full	: 1;	/* bit 31	TOE Queue 31 Full Interrupt */
+	} bits;
+} INTR_REG2_T;
+
+#define TOE_QL_FULL_INT_BIT(x)		BIT(x)
+
+/*
+ * Interrupt Status Register 3	(offset 0x0050)
+ * Interrupt Mask Register 3	(offset 0x0054)
+ * Interrupt Select Register 3	(offset 0x0058)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0050 {
+		unsigned int toe_q32_full	: 1;	/* bit 32	TOE Queue 32 Full Interrupt */
+		unsigned int toe_q33_full	: 1;	/* bit 33	TOE Queue 33 Full Interrupt */
+		unsigned int toe_q34_full	: 1;	/* bit 34	TOE Queue 34 Full Interrupt */
+		unsigned int toe_q35_full	: 1;	/* bit 35	TOE Queue 35 Full Interrupt */
+		unsigned int toe_q36_full	: 1;	/* bit 36	TOE Queue 36 Full Interrupt */
+		unsigned int toe_q37_full	: 1;	/* bit 37	TOE Queue 37 Full Interrupt */
+		unsigned int toe_q38_full	: 1;	/* bit 38	TOE Queue 38 Full Interrupt */
+		unsigned int toe_q39_full	: 1;	/* bit 39	TOE Queue 39 Full Interrupt */
+		unsigned int toe_q40_full	: 1;	/* bit 40	TOE Queue 40 Full Interrupt */
+		unsigned int toe_q41_full	: 1;	/* bit 41	TOE Queue 41 Full Interrupt */
+		unsigned int toe_q42_full	: 1;	/* bit 42	TOE Queue 42 Full Interrupt */
+		unsigned int toe_q43_full	: 1;	/* bit 43	TOE Queue 43 Full Interrupt */
+		unsigned int toe_q44_full	: 1;	/* bit 44	TOE Queue 44 Full Interrupt */
+		unsigned int toe_q45_full	: 1;	/* bit 45	TOE Queue 45 Full Interrupt */
+		unsigned int toe_q46_full	: 1;	/* bit 46	TOE Queue 46 Full Interrupt */
+		unsigned int toe_q47_full	: 1;	/* bit 47	TOE Queue 47 Full Interrupt */
+		unsigned int toe_q48_full	: 1;	/* bit 48	TOE Queue 48 Full Interrupt */
+		unsigned int toe_q49_full	: 1;	/* bit 49	TOE Queue 49 Full Interrupt */
+		unsigned int toe_q50_full	: 1;	/* bit 50	TOE Queue 50 Full Interrupt */
+		unsigned int toe_q51_full	: 1;	/* bit 51	TOE Queue 51 Full Interrupt */
+		unsigned int toe_q52_full	: 1;	/* bit 52	TOE Queue 52 Full Interrupt */
+		unsigned int toe_q53_full	: 1;	/* bit 53	TOE Queue 53 Full Interrupt */
+		unsigned int toe_q54_full	: 1;	/* bit 54	TOE Queue 54 Full Interrupt */
+		unsigned int toe_q55_full	: 1;	/* bit 55	TOE Queue 55 Full Interrupt */
+		unsigned int toe_q56_full	: 1;	/* bit 56	TOE Queue 56 Full Interrupt */
+		unsigned int toe_q57_full	: 1;	/* bit 57	TOE Queue 57 Full Interrupt */
+		unsigned int toe_q58_full	: 1;	/* bit 58	TOE Queue 58 Full Interrupt */
+		unsigned int toe_q59_full	: 1;	/* bit 59	TOE Queue 59 Full Interrupt */
+		unsigned int toe_q60_full	: 1;	/* bit 60	TOE Queue 60 Full Interrupt */
+		unsigned int toe_q61_full	: 1;	/* bit 61	TOE Queue 61 Full Interrupt */
+		unsigned int toe_q62_full	: 1;	/* bit 62	TOE Queue 62 Full Interrupt */
+		unsigned int toe_q63_full	: 1;	/* bit 63	TOE Queue 63 Full Interrupt */
+	} bits;
+} INTR_REG3_T;
+
+#define TOE_QH_FULL_INT_BIT(x)		BIT(x-32)
+
+/*
+ * Interrupt Status Register 4	(offset 0x0060)
+ * Interrupt Mask Register 4	(offset 0x0064)
+ * Interrupt Select Register 4	(offset 0x0068)
+ */
+typedef union {
+	unsigned char byte;
+	struct bit_0060 {
+		unsigned char status_changed	: 1;	/* Status Changed Intr for RGMII Mode */
+		unsigned char rx_overrun	: 1;   /* GMAC Rx FIFO overrun interrupt */
+		unsigned char tx_pause_off	: 1;	/* received pause off frame interrupt */
+		unsigned char rx_pause_off	: 1;	/* received pause off frame interrupt */
+		unsigned char tx_pause_on	: 1;	/* transmit pause on frame interrupt */
+		unsigned char rx_pause_on	: 1;	/* received pause on frame interrupt */
+		unsigned char cnt_full		: 1;	/* MIB counters half full interrupt */
+		unsigned char reserved		: 1;	/* */
+	} __packed bits;
+} __packed GMAC_INTR_T;
+
+typedef union {
+	unsigned int bits32;
+	struct bit_0060_2 {
+		unsigned int    swfq_empty	: 1;	/* bit 0	Software Free Queue Empty Intr. */
+		unsigned int    hwfq_empty	: 1;	/* bit 1	Hardware Free Queue Empty Intr. */
+		unsigned int	class_qf_int	: 14;	/* bit 15:2 Classification Rx Queue13-0 Full Intr. */
+		GMAC_INTR_T	gmac0;
+		GMAC_INTR_T	gmac1;
+	} bits;
+} INTR_REG4_T;
+
+#define GMAC1_RESERVED_INT_BIT		BIT(31)
+#define GMAC1_MIB_INT_BIT		BIT(30)
+#define GMAC1_RX_PAUSE_ON_INT_BIT	BIT(29)
+#define GMAC1_TX_PAUSE_ON_INT_BIT	BIT(28)
+#define GMAC1_RX_PAUSE_OFF_INT_BIT	BIT(27)
+#define GMAC1_TX_PAUSE_OFF_INT_BIT	BIT(26)
+#define GMAC1_RX_OVERRUN_INT_BIT	BIT(25)
+#define GMAC1_STATUS_CHANGE_INT_BIT	BIT(24)
+#define GMAC0_RESERVED_INT_BIT		BIT(23)
+#define GMAC0_MIB_INT_BIT		BIT(22)
+#define GMAC0_RX_PAUSE_ON_INT_BIT	BIT(21)
+#define GMAC0_TX_PAUSE_ON_INT_BIT	BIT(20)
+#define GMAC0_RX_PAUSE_OFF_INT_BIT	BIT(19)
+#define GMAC0_TX_PAUSE_OFF_INT_BIT	BIT(18)
+#define GMAC0_RX_OVERRUN_INT_BIT	BIT(17)
+#define GMAC0_STATUS_CHANGE_INT_BIT	BIT(16)
+#define CLASS_RX_FULL_INT_BIT(x)	BIT((x+2))
+#define HWFQ_EMPTY_INT_BIT		BIT(1)
+#define SWFQ_EMPTY_INT_BIT		BIT(0)
+
+#define GMAC0_INT_BITS		(GMAC0_RESERVED_INT_BIT | GMAC0_MIB_INT_BIT | \
+				 GMAC0_RX_PAUSE_ON_INT_BIT | GMAC0_TX_PAUSE_ON_INT_BIT |	\
+				 GMAC0_RX_PAUSE_OFF_INT_BIT | GMAC0_TX_PAUSE_OFF_INT_BIT |	\
+				 GMAC0_RX_OVERRUN_INT_BIT | GMAC0_STATUS_CHANGE_INT_BIT)
+#define GMAC1_INT_BITS		(GMAC1_RESERVED_INT_BIT | GMAC1_MIB_INT_BIT | \
+				 GMAC1_RX_PAUSE_ON_INT_BIT | GMAC1_TX_PAUSE_ON_INT_BIT |	\
+				 GMAC1_RX_PAUSE_OFF_INT_BIT | GMAC1_TX_PAUSE_OFF_INT_BIT |	\
+				 GMAC1_RX_OVERRUN_INT_BIT | GMAC1_STATUS_CHANGE_INT_BIT)
+
+#define CLASS_RX_FULL_INT_BITS		0xfffc
+
+/*
+ * GLOBAL_QUEUE_THRESHOLD_REG	(offset 0x0070)
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_0070_2 {
+		unsigned int    swfq_empty	: 8;	/*  7:0		Software Free Queue Empty Threshold */
+		unsigned int    hwfq_empty	: 8;	/* 15:8		Hardware Free Queue Empty Threshold */
+		unsigned int	intrq		: 8;	/* 23:16 */
+		unsigned int	toe_class	: 8;	/* 31:24 */
+	} bits;
+} QUEUE_THRESHOLD_T;
+
+
+/*
+ * GMAC DMA Control Register
+ * GMAC0 offset 0x8000
+ * GMAC1 offset 0xC000
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8000 {
+		unsigned int	td_bus		: 2;	/* bit 1:0	Peripheral Bus Width */
+		unsigned int	td_burst_size	: 2;	/* bit 3:2	TxDMA max burst size for every AHB request */
+		unsigned int	td_prot		: 4;	/* bit 7:4	TxDMA protection control */
+		unsigned int	rd_bus		: 2;	/* bit 9:8	Peripheral Bus Width */
+		unsigned int	rd_burst_size	: 2;	/* bit 11:10	DMA max burst size for every AHB request */
+		unsigned int	rd_prot		: 4;	/* bit 15:12	DMA Protection Control */
+		unsigned int	rd_insert_bytes	: 2;	/* bit 17:16 */
+		unsigned int	reserved	: 10;	/* bit 27:18 */
+		unsigned int    drop_small_ack	: 1;	/* bit 28	1: Drop, 0: Accept */
+		unsigned int    loopback	: 1;	/* bit 29	Loopback TxDMA to RxDMA */
+		unsigned int    td_enable	: 1;	/* bit 30	Tx DMA Enable */
+		unsigned int    rd_enable	: 1;	/* bit 31	Rx DMA Enable */
+	} bits;
+} GMAC_DMA_CTRL_T;
+
+/*
+ * GMAC Tx Weighting Control Register 0
+ * GMAC0 offset 0x8004
+ * GMAC1 offset 0xC004
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8004 {
+		unsigned int    hw_tq0		: 6;	/* bit 5:0	HW TX Queue 3 */
+		unsigned int    hw_tq1		: 6;	/* bit 11:6	HW TX Queue 2 */
+		unsigned int    hw_tq2		: 6;	/* bit 17:12	HW TX Queue 1 */
+		unsigned int    hw_tq3		: 6;	/* bit 23:18	HW TX Queue 0 */
+		unsigned int    reserved	: 8;	/* bit 31:24 */
+	} bits;
+} GMAC_TX_WCR0_T;	/* Weighting Control Register 0 */
+
+/*
+ * GMAC Tx Weighting Control Register 1
+ * GMAC0 offset 0x8008
+ * GMAC1 offset 0xC008
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8008 {
+		unsigned int    sw_tq0		: 5;	/* bit 4:0	SW TX Queue 0 */
+		unsigned int    sw_tq1		: 5;	/* bit 9:5	SW TX Queue 1 */
+		unsigned int    sw_tq2		: 5;	/* bit 14:10	SW TX Queue 2 */
+		unsigned int    sw_tq3		: 5;	/* bit 19:15	SW TX Queue 3 */
+		unsigned int    sw_tq4		: 5;	/* bit 24:20	SW TX Queue 4 */
+		unsigned int    sw_tq5		: 5;	/* bit 29:25	SW TX Queue 5 */
+		unsigned int    reserved	: 2;	/* bit 31:30 */
+	} bits;
+} GMAC_TX_WCR1_T;	/* Weighting Control Register 1 */
+
+/*
+ * Queue Read/Write Pointer
+ * GMAC SW TX Queue 0~5 Read/Write Pointer register
+ * GMAC0 offset 0x800C ~ 0x8020
+ * GMAC1 offset 0xC00C ~ 0xC020
+ * GMAC HW TX Queue 0~3 Read/Write Pointer register
+ * GMAC0 offset 0x8024 ~ 0x8030
+ * GMAC1 offset 0xC024 ~ 0xC030
+ *
+ * see DMA_RWPTR_T structure
+ */
+
+/*
+ * GMAC DMA Tx First Description Address Register
+ * GMAC0 offset 0x8038
+ * GMAC1 offset 0xC038
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8038 {
+		unsigned int reserved		:  3;
+		unsigned int td_busy		:  1;	/* bit 3	1: TxDMA busy; 0: TxDMA idle */
+		unsigned int td_first_des_ptr	: 28;	/* bit 31:4	first descriptor address */
+	} bits;
+} GMAC_TXDMA_FIRST_DESC_T;
+
+/*
+ * GMAC DMA Tx Current Description Address Register
+ * GMAC0 offset 0x803C
+ * GMAC1 offset 0xC03C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_803C {
+		unsigned int reserved		:  4;
+		unsigned int td_curr_desc_ptr	: 28;	/* bit 31:4	current descriptor address */
+	} bits;
+} GMAC_TXDMA_CURR_DESC_T;
+
+/*
+ * GMAC DMA Tx Description Word 0 Register
+ * GMAC0 offset 0x8040
+ * GMAC1 offset 0xC040
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8040 {
+		unsigned int buffer_size	: 16;	/* bit 15:0	Transfer size */
+		unsigned int desc_count		: 6;	/* bit 21:16	number of descriptors used for the current frame */
+		unsigned int status_tx_ok	: 1;	/* bit 22	Tx Status, 1: Successful 0: Failed */
+		unsigned int status_rvd		: 6;	/* bit 28:23	Tx Status, Reserved bits */
+		unsigned int perr		: 1;	/* bit 29	protocol error during processing this descriptor */
+		unsigned int derr		: 1;	/* bit 30	data error during processing this descriptor */
+		unsigned int reserved		: 1;	/* bit 31 */
+	} bits;
+} GMAC_TXDESC_0_T;
+
+/*
+ * GMAC DMA Tx Description Word 1 Register
+ * GMAC0 offset 0x8044
+ * GMAC1 offset 0xC044
+ */
+typedef union {
+	unsigned int bits32;
+	struct txdesc_word1 {
+		unsigned int	byte_count	: 16;	/* bit 15: 0	Tx Frame Byte Count */
+		unsigned int	mtu_enable	: 1;	/* bit 16	TSS segmentation use MTU setting */
+		unsigned int	ip_chksum	: 1;	/* bit 17	IPV4 Header Checksum Enable */
+		unsigned int	ipv6_enable	: 1;	/* bit 18	IPV6 Tx Enable */
+		unsigned int	tcp_chksum	: 1;	/* bit 19	TCP Checksum Enable */
+		unsigned int	udp_chksum	: 1;	/* bit 20	UDP Checksum Enable */
+		unsigned int	bypass_tss	: 1;	/* bit 21	Bypass HW offload engine */
+		unsigned int	ip_fixed_len	: 1;	/* bit 22	Don't update IP length field */
+		unsigned int	reserved	: 9;	/* bit 31:23	Tx Flag, Reserved */
+	} bits;
+} GMAC_TXDESC_1_T;
+
+#define TSS_IP_FIXED_LEN_BIT	BIT(22)
+#define TSS_BYPASS_BIT		BIT(21)
+#define TSS_UDP_CHKSUM_BIT	BIT(20)
+#define TSS_TCP_CHKSUM_BIT	BIT(19)
+#define TSS_IPV6_ENABLE_BIT	BIT(18)
+#define TSS_IP_CHKSUM_BIT	BIT(17)
+#define TSS_MTU_ENABLE_BIT	BIT(16)
+
+#define TSS_CHECKUM_ENABLE	\
+	(TSS_IP_CHKSUM_BIT|TSS_IPV6_ENABLE_BIT| \
+	 TSS_TCP_CHKSUM_BIT|TSS_UDP_CHKSUM_BIT)
+
+/*
+ * GMAC DMA Tx Description Word 2 Register
+ * GMAC0 offset 0x8048
+ * GMAC1 offset 0xC048
+ */
+typedef union {
+	unsigned int	bits32;
+	unsigned int	buf_adr;
+} GMAC_TXDESC_2_T;
+
+/*
+ * GMAC DMA Tx Description Word 3 Register
+ * GMAC0 offset 0x804C
+ * GMAC1 offset 0xC04C
+ */
+typedef union {
+	unsigned int bits32;
+	struct txdesc_word3 {
+		unsigned int	mtu_size	: 13;	/* bit 12: 0	Tx Frame Byte Count */
+		unsigned int	reserved	: 16;	/* bit 28:13 */
+		unsigned int	eofie		: 1;	/* bit 29	End of frame interrupt enable */
+		unsigned int	sof_eof		: 2;	/* bit 31:30	11: only one, 10: first, 01: last, 00: linking */
+	} bits;
+} GMAC_TXDESC_3_T;
+#define SOF_EOF_BIT_MASK	0x3fffffff
+#define SOF_BIT			0x80000000
+#define EOF_BIT			0x40000000
+#define EOFIE_BIT		BIT(29)
+#define MTU_SIZE_BIT_MASK	0x1fff
+
+/*
+ * GMAC Tx Descriptor
+ */
+typedef struct {
+	GMAC_TXDESC_0_T	word0;
+	GMAC_TXDESC_1_T	word1;
+	GMAC_TXDESC_2_T	word2;
+	GMAC_TXDESC_3_T	word3;
+} GMAC_TXDESC_T;
+
+/*
+ * GMAC DMA Rx First Description Address Register
+ * GMAC0 offset 0x8058
+ * GMAC1 offset 0xC058
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8058 {
+		unsigned int reserved		:  3;	/* bit 2:0 */
+		unsigned int rd_busy		:  1;	/* bit 3	1-RxDMA busy; 0-RxDMA idle */
+		unsigned int rd_first_des_ptr	: 28;	/* bit 31:4 first descriptor address */
+	} bits;
+} GMAC_RXDMA_FIRST_DESC_T;
+
+/*
+ * GMAC DMA Rx Current Description Address Register
+ * GMAC0 offset 0x805C
+ * GMAC1 offset 0xC05C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_805C {
+		unsigned int reserved		:  4;	/* bit 3:0 */
+		unsigned int rd_curr_des_ptr	: 28;	/* bit 31:4 current descriptor address */
+	} bits;
+} GMAC_RXDMA_CURR_DESC_T;
+
+/*
+ * GMAC DMA Rx Description Word 0 Register
+ * GMAC0 offset 0x8060
+ * GMAC1 offset 0xC060
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8060 {
+		unsigned int buffer_size	: 16;	/* bit 15:0  number of descriptors used for the current frame */
+		unsigned int desc_count		: 6;	/* bit 21:16 number of descriptors used for the current frame */
+		unsigned int status		: 4;	/* bit 24:22 Status of rx frame */
+		unsigned int chksum_status	: 3;	/* bit 28:26 Check Sum Status */
+		unsigned int perr		: 1;	/* bit 29	 protocol error during processing this descriptor */
+		unsigned int derr		: 1;	/* bit 30	 data error during processing this descriptor */
+		unsigned int drop		: 1;	/* bit 31	 TOE/CIS Queue Full dropped packet to default queue */
+	} bits;
+} GMAC_RXDESC_0_T;
+
+#define		GMAC_RXDESC_0_T_derr			BIT(30)
+#define		GMAC_RXDESC_0_T_perr			BIT(29)
+#define		GMAC_RXDESC_0_T_chksum_status(x)	BIT((x+26))
+#define		GMAC_RXDESC_0_T_status(x)		BIT((x+22))
+#define		GMAC_RXDESC_0_T_desc_count(x)		BIT((x+16))
+
+#define	RX_CHKSUM_IP_UDP_TCP_OK			0
+#define	RX_CHKSUM_IP_OK_ONLY			1
+#define	RX_CHKSUM_NONE				2
+#define	RX_CHKSUM_IP_ERR_UNKNOWN		4
+#define	RX_CHKSUM_IP_ERR			5
+#define	RX_CHKSUM_TCP_UDP_ERR			6
+#define RX_CHKSUM_NUM				8
+
+#define RX_STATUS_GOOD_FRAME			0
+#define RX_STATUS_TOO_LONG_GOOD_CRC		1
+#define RX_STATUS_RUNT_FRAME			2
+#define RX_STATUS_SFD_NOT_FOUND			3
+#define RX_STATUS_CRC_ERROR			4
+#define RX_STATUS_TOO_LONG_BAD_CRC		5
+#define RX_STATUS_ALIGNMENT_ERROR		6
+#define RX_STATUS_TOO_LONG_BAD_ALIGN		7
+#define RX_STATUS_RX_ERR			8
+#define RX_STATUS_DA_FILTERED			9
+#define RX_STATUS_BUFFER_FULL			10
+#define RX_STATUS_NUM				16
+
+#define RX_ERROR_LENGTH(s) \
+	((s) == RX_STATUS_TOO_LONG_GOOD_CRC || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_CRC || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_ALIGN)
+#define RX_ERROR_OVER(s) \
+	((s) == RX_STATUS_BUFFER_FULL)
+#define RX_ERROR_CRC(s) \
+	((s) == RX_STATUS_CRC_ERROR || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_CRC)
+#define RX_ERROR_FRAME(s) \
+	((s) == RX_STATUS_ALIGNMENT_ERROR || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_ALIGN)
+#define RX_ERROR_FIFO(s) \
+	(0)
+
+/*
+ * GMAC DMA Rx Description Word 1 Register
+ * GMAC0 offset 0x8064
+ * GMAC1 offset 0xC064
+ */
+typedef union {
+	unsigned int bits32;
+	struct rxdesc_word1 {
+		unsigned int	byte_count	: 16;	/* bit 15: 0	Rx Frame Byte Count */
+		unsigned int	sw_id		: 16;	/* bit 31:16	Software ID */
+	} bits;
+} GMAC_RXDESC_1_T;
+
+/*
+ * GMAC DMA Rx Description Word 2 Register
+ * GMAC0 offset 0x8068
+ * GMAC1 offset 0xC068
+ */
+typedef union {
+	unsigned int	bits32;
+	unsigned int	buf_adr;
+} GMAC_RXDESC_2_T;
+
+#define RX_INSERT_NONE		0
+#define RX_INSERT_1_BYTE	1
+#define RX_INSERT_2_BYTE	2
+#define RX_INSERT_3_BYTE	3
+
+/*
+ * GMAC DMA Rx Description Word 3 Register
+ * GMAC0 offset 0x806C
+ * GMAC1 offset 0xC06C
+ */
+typedef union {
+	unsigned int bits32;
+	struct rxdesc_word3 {
+		unsigned int	l3_offset	: 8;	/* bit 7: 0	L3 data offset */
+		unsigned int	l4_offset	: 8;	/* bit 15: 8	L4 data offset */
+		unsigned int	l7_offset	: 8;	/* bit 23: 16	L7 data offset */
+		unsigned int	dup_ack		: 1;	/* bit 24	Duplicated ACK detected */
+		unsigned int	abnormal	: 1;	/* bit 25	abnormal case found */
+		unsigned int	option		: 1;	/* bit 26	IPV4 option or IPV6 extension header */
+		unsigned int	out_of_seq	: 1;	/* bit 27	Out of Sequence packet */
+		unsigned int	ctrl_flag	: 1;	/* bit 28	Control Flag is present */
+		unsigned int	eofie		: 1;	/* bit 29	End of frame interrupt enable */
+		unsigned int	sof_eof		: 2;	/* bit 31:30	11: only one, 10: first, 01: last, 00: linking */
+	} bits;
+} GMAC_RXDESC_3_T;
+
+/*
+ * GMAC Rx Descriptor
+ */
+typedef struct {
+	GMAC_RXDESC_0_T	word0;
+	GMAC_RXDESC_1_T	word1;
+	GMAC_RXDESC_2_T	word2;
+	GMAC_RXDESC_3_T	word3;
+} GMAC_RXDESC_T;
+
+/*
+ * GMAC Hash Engine Enable/Action Register 0 Offset Register
+ * GMAC0 offset 0x8070
+ * GMAC1 offset 0xC070
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8070 {
+		unsigned int	mr0hel		: 6;	/* bit 5:0	match rule 0 hash entry size */
+		unsigned int	mr0_action	: 5;	/* bit 10:6	Matching Rule 0 action offset */
+		unsigned int	reserved0	: 4;	/* bit 14:11 */
+		unsigned int	mr0en		: 1;	/* bit 15	Enable Matching Rule 0 */
+		unsigned int	mr1hel		: 6;	/* bit 21:16	match rule 1 hash entry size */
+		unsigned int	mr1_action	: 5;	/* bit 26:22	Matching Rule 1 action offset */
+		unsigned int	timing		: 3;	/* bit 29:27 */
+		unsigned int	reserved1	: 1;	/* bit 30 */
+		unsigned int	mr1en		: 1;	/* bit 31	Enable Matching Rule 1 */
+	} bits;
+} GMAC_HASH_ENABLE_REG0_T;
+
+/*
+ * GMAC Hash Engine Enable/Action Register 1 Offset Register
+ * GMAC0 offset 0x8074
+ * GMAC1 offset 0xC074
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8074 {
+		unsigned int	mr2hel		: 6;	/* bit 5:0	match rule 2 hash entry size */
+		unsigned int	mr2_action	: 5;	/* bit 10:6	Matching Rule 2 action offset */
+		unsigned int	reserved2	: 4;	/* bit 14:11 */
+		unsigned int	mr2en		: 1;	/* bit 15	Enable Matching Rule 2 */
+		unsigned int	mr3hel		: 6;	/* bit 21:16	match rule 3 hash entry size */
+		unsigned int	mr3_action	: 5;	/* bit 26:22	Matching Rule 3 action offset */
+		unsigned int	reserved1	: 4;	/* bit 30:27 */
+		unsigned int	mr3en		: 1;	/* bit 31	Enable Matching Rule 3 */
+	} bits;
+} GMAC_HASH_ENABLE_REG1_T;
+
+/*
+ * GMAC Matching Rule Control Register 0
+ * GMAC0 offset 0x8078
+ * GMAC1 offset 0xC078
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8078 {
+		unsigned int	sprx		: 8;	/* bit 7:0	Support Protocol Register 7:0 */
+		unsigned int	reserved2	: 4;	/* bit 11:8 */
+		unsigned int	tos_traffic	: 1;	/* bit 12	IPV4 TOS or IPV6 Traffice Class */
+		unsigned int	flow_lable	: 1;	/* bit 13	IPV6 Flow label */
+		unsigned int	ip_hdr_len	: 1;	/* bit 14	IPV4 Header length */
+		unsigned int	ip_version	: 1;	/* bit 15	0: IPV4, 1: IPV6 */
+		unsigned int	reserved1	: 3;	/* bit 18:16 */
+		unsigned int	pppoe		: 1;	/* bit 19	PPPoE Session ID enable */
+		unsigned int	vlan		: 1;	/* bit 20	VLAN ID enable */
+		unsigned int	ether_type	: 1;	/* bit 21	Ethernet type enable */
+		unsigned int	sa		: 1;	/* bit 22	MAC SA enable */
+		unsigned int	da		: 1;	/* bit 23	MAC DA enable */
+		unsigned int	priority	: 3;	/* bit 26:24	priority if multi-rules matched */
+		unsigned int	port		: 1;	/* bit 27	PORT ID matching enable */
+		unsigned int	l7		: 1;	/* bit 28	L7 matching enable */
+		unsigned int	l4		: 1;	/* bit 29	L4 matching enable */
+		unsigned int	l3		: 1;	/* bit 30	L3 matching enable */
+		unsigned int	l2		: 1;	/* bit 31	L2 matching enable */
+	} bits;
+} GMAC_MRxCR0_T;
+
+#define MR_L2_BIT		BIT(31)
+#define MR_L3_BIT		BIT(30)
+#define MR_L4_BIT		BIT(29)
+#define MR_L7_BIT		BIT(28)
+#define MR_PORT_BIT		BIT(27)
+#define MR_PRIORITY_BIT		BIT(26)
+#define MR_DA_BIT		BIT(23)
+#define MR_SA_BIT		BIT(22)
+#define MR_ETHER_TYPE_BIT	BIT(21)
+#define MR_VLAN_BIT		BIT(20)
+#define MR_PPPOE_BIT		BIT(19)
+#define MR_IP_VER_BIT		BIT(15)
+#define MR_IP_HDR_LEN_BIT	BIT(14)
+#define MR_FLOW_LABLE_BIT	BIT(13)
+#define MR_TOS_TRAFFIC_BIT	BIT(12)
+#define MR_SPR_BIT(x)		BIT(x)
+#define MR_SPR_BITS		0xff
+
+/*
+ * GMAC Matching Rule Control Register 1
+ * GMAC0 offset 0x807C
+ * GMAC1 offset 0xC07C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_807C {
+		unsigned int    l4_byte0_15	: 16;	/* bit 15: 0 */
+		unsigned int	dip_netmask	: 7;	/* bit 22:16	Dest IP net mask, number of mask bits */
+		unsigned int	dip		: 1;	/* bit 23		Dest IP */
+		unsigned int	sip_netmask	: 7;	/* bit 30:24	Srce IP net mask, number of mask bits */
+		unsigned int	sip		: 1;	/* bit 31		Srce IP */
+	} bits;
+} GMAC_MRxCR1_T;
+
+/*
+ * GMAC Matching Rule Control Register 2
+ * GMAC0 offset 0x8080
+ * GMAC1 offset 0xC080
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_8080 {
+		unsigned int    l7_byte0_23	: 24;	/* bit 23:0 */
+		unsigned int    l4_byte16_24	: 8;	/* bit 31: 24 */
+	} bits;
+} GMAC_MRxCR2_T;
+
+/*
+ * GMAC Support registers
+ * GMAC0 offset 0x80A8
+ * GMAC1 offset 0xC0A8
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_80A8 {
+		unsigned int    protocol	: 8;	/* bit 7:0		Supported protocol */
+		unsigned int    swap		: 3;	/* bit 10:8		Swap */
+		unsigned int    reserved	: 21;	/* bit 31:11 */
+	} bits;
+} GMAC_SPR_T;
+
+/*
+ * GMAC_AHB_WEIGHT registers
+ * GMAC0 offset 0x80C8
+ * GMAC1 offset 0xC0C8
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_80C8 {
+		unsigned int    hash_weight	: 5;	/* 4:0 */
+		unsigned int    rx_weight	: 5;	/* 9:5 */
+		unsigned int    tx_weight	: 5;	/* 14:10 */
+		unsigned int    pre_req		: 5;	/* 19:15 Rx Data Pre Request FIFO Threshold */
+		unsigned int    tqDV_threshold	: 5;	/* 24:20 DMA TqCtrl to Start tqDV FIFO Threshold */
+		unsigned int    reserved	: 7;	/* 31:25 */
+	} bits;
+} GMAC_AHB_WEIGHT_T;
+
+/*
+ * the register structure of GMAC
+ */
+
+/*
+ * GMAC RX FLTR
+ * GMAC0 Offset 0xA00C
+ * GMAC1 Offset 0xE00C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_000c {
+		unsigned int unicast		:  1;	/* enable receive of unicast frames that are sent to STA address */
+		unsigned int multicast		:  1;	/* enable receive of multicast frames that pass multicast filter */
+		unsigned int broadcast		:  1;	/* enable receive of broadcast frames */
+		unsigned int promiscuous	:  1;   /* enable receive of all frames */
+		unsigned int error		:  1;	/* enable receive of all error frames */
+		unsigned int			: 27;
+	} bits;
+} GMAC_RX_FLTR_T;
+
+/*
+ * GMAC Configuration 0
+ * GMAC0 Offset 0xA018
+ * GMAC1 Offset 0xE018
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_0018 {
+		unsigned int dis_tx		:  1;	/* 0: disable transmit */
+		unsigned int dis_rx		:  1;	/* 1: disable receive */
+		unsigned int loop_back		:  1;	/* 2: transmit data loopback enable */
+		unsigned int flow_ctrl		:  1;   /* 3: flow control also trigged by Rx queues */
+		unsigned int adj_ifg		:  4;	/* 4-7: adjust IFG from 96+/-56 */
+		unsigned int max_len		:  3;	/* 8-10 maximum receive frame length allowed */
+		unsigned int dis_bkoff		:  1;	/* 11: disable back-off function */
+		unsigned int dis_col		:  1;	/* 12: disable 16 collisions abort function */
+		unsigned int sim_test		:  1;	/* 13: speed up timers in simulation */
+		unsigned int rx_fc_en		:  1;	/* 14: RX flow control enable */
+		unsigned int tx_fc_en		:  1;	/* 15: TX flow control enable */
+		unsigned int rgmii_en		:  1;   /* 16: RGMII in-band status enable */
+		unsigned int ipv4_rx_chksum	:  1;   /* 17: IPv4 RX Checksum enable */
+		unsigned int ipv6_rx_chksum	:  1;   /* 18: IPv6 RX Checksum enable */
+		unsigned int rx_tag_remove	:  1;   /* 19: Remove Rx VLAN tag */
+		unsigned int rgmm_edge		:  1;	/* 20 */
+		unsigned int rxc_inv		:  1;	/* 21 */
+		unsigned int ipv6_exthdr_order	:  1;	/* 22 */
+		unsigned int rx_err_detect	:  1;	/* 23 */
+		unsigned int port0_chk_hwq	:  1;	/* 24 */
+		unsigned int port1_chk_hwq	:  1;	/* 25 */
+		unsigned int port0_chk_toeq	:  1;	/* 26 */
+		unsigned int port1_chk_toeq	:  1;	/* 27 */
+		unsigned int port0_chk_classq	:  1;	/* 28 */
+		unsigned int port1_chk_classq	:  1;	/* 29 */
+		unsigned int reserved		:  2;	/* 31 */
+	} bits;
+} GMAC_CONFIG0_T;
+
+#define CONFIG0_TX_RX_DISABLE	(BIT(1)|BIT(0))
+#define CONFIG0_RX_CHKSUM	(BIT(18)|BIT(17))
+#define CONFIG0_FLOW_RX		(BIT(14))
+#define CONFIG0_FLOW_TX		(BIT(15))
+#define CONFIG0_FLOW_TX_RX	(BIT(14)|BIT(15))
+#define CONFIG0_FLOW_CTL	(BIT(14)|BIT(15))
+
+#define CONFIG0_MAXLEN_SHIFT	8
+#define CONFIG0_MAXLEN_MASK	(7 << CONFIG0_MAXLEN_SHIFT)
+#define  CONFIG0_MAXLEN_1536	0
+#define  CONFIG0_MAXLEN_1518	1
+#define  CONFIG0_MAXLEN_1522	2
+#define  CONFIG0_MAXLEN_1542	3
+#define  CONFIG0_MAXLEN_9k	4	/* 9212 */
+#define  CONFIG0_MAXLEN_10k	5	/* 10236 */
+#define  CONFIG0_MAXLEN_1518__6	6
+#define  CONFIG0_MAXLEN_1518__7	7
+
+/*
+ * GMAC Configuration 1
+ * GMAC0 Offset 0xA01C
+ * GMAC1 Offset 0xE01C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_001c {
+		unsigned int set_threshold	: 8;	/* flow control set threshold */
+		unsigned int rel_threshold	: 8;	/* flow control release threshold */
+		unsigned int reserved		: 16;
+	} bits;
+} GMAC_CONFIG1_T;
+
+#define GMAC_FLOWCTRL_SET_MAX		32
+#define GMAC_FLOWCTRL_SET_MIN		0
+#define GMAC_FLOWCTRL_RELEASE_MAX	32
+#define GMAC_FLOWCTRL_RELEASE_MIN	0
+
+/*
+ * GMAC Configuration 2
+ * GMAC0 Offset 0xA020
+ * GMAC1 Offset 0xE020
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_0020 {
+		unsigned int set_threshold	: 16;	/* flow control set threshold */
+		unsigned int rel_threshold	: 16;	/* flow control release threshold */
+	} bits;
+} GMAC_CONFIG2_T;
+
+/*
+ * GMAC Configuration 3
+ * GMAC0 Offset 0xA024
+ * GMAC1 Offset 0xE024
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_0024 {
+		unsigned int set_threshold	: 16;	/* flow control set threshold */
+		unsigned int rel_threshold	: 16;	/* flow control release threshold */
+	} bits;
+} GMAC_CONFIG3_T;
+
+
+/*
+ * GMAC STATUS
+ * GMAC0 Offset 0xA02C
+ * GMAC1 Offset 0xE02C
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit1_002c {
+		unsigned int link		:  1;	/* link status */
+		unsigned int speed		:  2;	/* link speed(00->2.5M 01->25M 10->125M) */
+		unsigned int duplex		:  1;	/* duplex mode */
+		unsigned int reserved		:  1;
+		unsigned int mii_rmii		:  2;   /* PHY interface type */
+		unsigned int			: 25;
+	} bits;
+} GMAC_STATUS_T;
+
+#define GMAC_SPEED_10			0
+#define GMAC_SPEED_100			1
+#define GMAC_SPEED_1000			2
+
+#define GMAC_PHY_MII			0
+#define GMAC_PHY_GMII			1
+#define GMAC_PHY_RGMII_100_10		2
+#define GMAC_PHY_RGMII_1000		3
+
+/*
+ * Queue Header
+ *	(1) TOE Queue Header
+ *	(2) Non-TOE Queue Header
+ *	(3) Interrupt Queue Header
+ *
+ * memory Layout
+ *	TOE Queue Header
+ *		     0x60003000 +---------------------------+ 0x0000
+ *				|     TOE Queue 0 Header    |
+ *				|         8 * 4 Bytes	    |
+ *				+---------------------------+ 0x0020
+ *				|     TOE Queue 1 Header    |
+ *				|         8 * 4 Bytes	    |
+ *				+---------------------------+ 0x0040
+ *				|          ......           |
+ *				|                           |
+ *				+---------------------------+
+ *
+ *	Non TOE Queue Header
+ *		     0x60002000 +---------------------------+ 0x0000
+ *				|   Default Queue 0 Header  |
+ *				|         2 * 4 Bytes       |
+ *				+---------------------------+ 0x0008
+ *				|   Default Queue 1 Header  |
+ *				|         2 * 4 Bytes       |
+ *				+---------------------------+ 0x0010
+ *				|   Classification Queue 0  |
+ *				|	  2 * 4 Bytes       |
+ *				+---------------------------+
+ *				|   Classification Queue 1  |
+ *				|	  2 * 4 Bytes       |
+ *				+---------------------------+ (n * 8 + 0x10)
+ *				|		...	    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+ (13 * 8 + 0x10)
+ *				|   Classification Queue 13 |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+ 0x80
+ *				|      Interrupt Queue 0    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 1    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 2    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 3    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *
+ */
+#define TOE_QUEUE_HDR_ADDR(n)		(TOE_TOE_QUE_HDR_BASE + n * 32)
+#define TOE_Q_HDR_AREA_END		(TOE_QUEUE_HDR_ADDR(TOE_TOE_QUEUE_MAX + 1))
+#define TOE_DEFAULT_Q_HDR_BASE(x)	(TOE_NONTOE_QUE_HDR_BASE + 0x08 * (x))
+#define TOE_CLASS_Q_HDR_BASE		(TOE_NONTOE_QUE_HDR_BASE + 0x10)
+#define TOE_INTR_Q_HDR_BASE		(TOE_NONTOE_QUE_HDR_BASE + 0x80)
+#define INTERRUPT_QUEUE_HDR_ADDR(n)	(TOE_INTR_Q_HDR_BASE + n * 8)
+#define NONTOE_Q_HDR_AREA_END		(INTERRUPT_QUEUE_HDR_ADDR(TOE_INTR_QUEUE_MAX + 1))
+/*
+ * TOE Queue Header Word 0
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int base_size;
+} TOE_QHDR0_T;
+
+#define TOE_QHDR0_BASE_MASK	(~0x0f)
+
+/*
+ * TOE Queue Header Word 1
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_qhdr1 {
+		unsigned int rptr	: 16;	/* bit 15:0 */
+		unsigned int wptr	: 16;	/* bit 31:16 */
+	} bits;
+} TOE_QHDR1_T;
+
+/*
+ * TOE Queue Header Word 2
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_qhdr2 {
+		unsigned int TotalPktSize	: 17;	/* bit 16: 0	Total packet size */
+		unsigned int reserved		: 7;	/* bit 23:17 */
+		unsigned int dack		: 1;	/* bit 24	1: Duplicated ACK */
+		unsigned int abn		: 1;	/* bit 25	1: Abnormal case Found */
+		unsigned int tcp_opt		: 1;	/* bit 26	1: Have TCP option */
+		unsigned int ip_opt		: 1;	/* bit 27	1: have IPV4 option or IPV6 Extension header */
+		unsigned int sat		: 1;	/* bit 28	1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold */
+		unsigned int osq		: 1;	/* bit 29	1: out of sequence */
+		unsigned int ctl		: 1;	/* bit 30	1: have control flag bits (except ack) */
+		unsigned int usd		: 1;	/* bit 31	0: if no data assembled yet */
+	} bits;
+} TOE_QHDR2_T;
+
+/*
+ * TOE Queue Header Word 3
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int seq_num;
+} TOE_QHDR3_T;
+
+/*
+ * TOE Queue Header Word 4
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int ack_num;
+} TOE_QHDR4_T;
+
+/*
+ * TOE Queue Header Word 5
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_qhdr5 {
+		unsigned int AckCnt	: 16;	/* bit 15:0 */
+		unsigned int SeqCnt	: 16;	/* bit 31:16 */
+	} bits;
+} TOE_QHDR5_T;
+
+/*
+ * TOE Queue Header Word 6
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_qhdr6 {
+		unsigned int WinSize	: 16;	/* bit 15:0 */
+		unsigned int iq_num	: 2;	/* bit 17:16 */
+		unsigned int MaxPktSize	: 14;	/* bit 31:18 */
+	} bits;
+} TOE_QHDR6_T;
+
+/*
+ * TOE Queue Header Word 7
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_qhdr7 {
+		unsigned int AckThreshold	: 16;	/* bit 15:0 */
+		unsigned int SeqThreshold	: 16;	/* bit 31:16 */
+	} bits;
+} TOE_QHDR7_T;
+
+/*
+ * TOE Queue Header
+ */
+typedef struct {
+	TOE_QHDR0_T		word0;
+	TOE_QHDR1_T		word1;
+	TOE_QHDR2_T		word2;
+	TOE_QHDR3_T		word3;
+	TOE_QHDR4_T		word4;
+	TOE_QHDR5_T		word5;
+	TOE_QHDR6_T		word6;
+	TOE_QHDR7_T		word7;
+} TOE_QHDR_T;
+
+/*
+ * NONTOE Queue Header Word 0
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int base_size;
+} NONTOE_QHDR0_T;
+
+#define NONTOE_QHDR0_BASE_MASK	(~0x0f)
+
+/*
+ * NONTOE Queue Header Word 1
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_nonqhdr1 {
+		unsigned int rptr	: 16;	/* bit 15:0 */
+		unsigned int wptr	: 16;	/* bit 31:16 */
+	} bits;
+} NONTOE_QHDR1_T;
+
+/*
+ * Non-TOE Queue Header
+ */
+typedef struct {
+	NONTOE_QHDR0_T		word0;
+	NONTOE_QHDR1_T		word1;
+} NONTOE_QHDR_T;
+
+/*
+ * Interrupt Queue Header Word 0
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_intrqhdr0 {
+		unsigned int win_size	: 16;	/* bit 15:0	Descriptor Ring Size */
+		unsigned int wptr	: 16;	/* bit 31:16	Write Pointer where hw stopped */
+	} bits;
+} INTR_QHDR0_T;
+
+/*
+ * Interrupt Queue Header Word 1
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_intrqhdr1 {
+		unsigned int TotalPktSize	: 17;	/* bit 16: 0	Total packet size */
+		unsigned int tcp_qid		: 8;	/* bit 24:17	TCP Queue ID */
+		unsigned int dack		: 1;	/* bit 25	1: Duplicated ACK */
+		unsigned int abn		: 1;	/* bit 26	1: Abnormal case Found */
+		unsigned int tcp_opt		: 1;	/* bit 27	1: Have TCP option */
+		unsigned int ip_opt		: 1;	/* bit 28	1: have IPV4 option or IPV6 Extension header */
+		unsigned int sat		: 1;	/* bit 29	1: SeqCnt > SeqThreshold, or AckCnt > AckThreshold */
+		unsigned int osq		: 1;	/* bit 30	1: out of sequence */
+		unsigned int ctl		: 1;	/* bit 31	1: have control flag bits (except ack) */
+	} bits;
+} INTR_QHDR1_T;
+
+/*
+ * Interrupt Queue Header Word 2
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int seq_num;
+} INTR_QHDR2_T;
+
+/*
+ * Interrupt Queue Header Word 3
+ */
+typedef union {
+	unsigned int bits32;
+	unsigned int ack_num;
+} INTR_QHDR3_T;
+
+/*
+ * Interrupt Queue Header Word 4
+ */
+typedef union {
+	unsigned int bits32;
+	struct bit_intrqhdr4 {
+		unsigned int AckCnt		: 16;	/* bit 15:0	Ack# change since last ack# intr. */
+		unsigned int SeqCnt		: 16;	/* bit 31:16	Seq# change since last seq# intr. */
+	} bits;
+} INTR_QHDR4_T;
+
+/*
+ * Interrupt Queue Header
+ */
+typedef struct {
+	INTR_QHDR0_T		word0;
+	INTR_QHDR1_T		word1;
+	INTR_QHDR2_T		word2;
+	INTR_QHDR3_T		word3;
+	INTR_QHDR4_T		word4;
+	unsigned int		word5;
+	unsigned int		word6;
+	unsigned int		word7;
+} INTR_QHDR_T;
+
+#endif /* _GMAC_SL351x_H */
diff --git a/target/linux/gemini/files-4.4/drivers/usb/host/ehci-fotg2.c b/target/linux/gemini/files-4.4/drivers/usb/host/ehci-fotg2.c
new file mode 100644
index 0000000000..0717abce9c
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/usb/host/ehci-fotg2.c
@@ -0,0 +1,258 @@
+/*
+ *  Gemini EHCI Host Controller driver
+ *
+ *  Copyright (C) 2014 Roman Yeryomin <roman@advem.lv>
+ *  Copyright (C) 2012 Tobias Waldvogel
+ *  based on GPLd code from Sony Computer Entertainment Inc.
+ *
+ *  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; version 2 of the License.
+ */
+#include <linux/kernel.h>
+#include <linux/hrtimer.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/ehci_pdriver.h>
+
+#include <mach/hardware.h>
+#include <mach/global_reg.h>
+
+#include "ehci.h"
+
+#define DRV_NAME			"ehci-fotg2"
+
+#define HCD_MISC			0x40
+
+#define OTGC_SCR			0x80
+#define OTGC_INT_STS			0x84
+#define OTGC_INT_EN			0x88
+
+#define GLOBAL_ISR			0xC0
+#define GLOBAL_ICR			0xC4
+
+#define GLOBAL_INT_POLARITY		(1 << 3)
+#define GLOBAL_INT_MASK_HC		(1 << 2)
+#define GLOBAL_INT_MASK_OTG		(1 << 1)
+#define GLOBAL_INT_MASK_DEV		(1 << 0)
+
+#define OTGC_SCR_ID			(1 << 21)
+#define OTGC_SCR_CROLE			(1 << 20)
+#define OTGC_SCR_VBUS_VLD		(1 << 19)
+#define OTGC_SCR_A_SRP_RESP_TYPE	(1 << 8)
+#define OTGC_SCR_A_SRP_DET_EN		(1 << 7)
+#define OTGC_SCR_A_SET_B_HNP_EN		(1 << 6)
+#define OTGC_SCR_A_BUS_DROP		(1 << 5)
+#define OTGC_SCR_A_BUS_REQ		(1 << 4)
+
+#define OTGC_INT_APLGRMV		(1 << 12)
+#define OTGC_INT_BPLGRMV		(1 << 11)
+#define OTGC_INT_OVC			(1 << 10)
+#define OTGC_INT_IDCHG			(1 << 9)
+#define OTGC_INT_RLCHG			(1 << 8)
+#define OTGC_INT_AVBUSERR		(1 << 5)
+#define OTGC_INT_ASRPDET		(1 << 4)
+#define OTGC_INT_BSRPDN			(1 << 0)
+
+#define OTGC_INT_A_TYPE	(		\
+ 		OTGC_INT_ASRPDET |	\
+		OTGC_INT_AVBUSERR |	\
+		OTGC_INT_OVC |		\
+		OTGC_INT_RLCHG |	\
+		OTGC_INT_IDCHG |	\
+		OTGC_INT_APLGRMV	\
+	)
+#define OTGC_INT_B_TYPE	(		\
+		OTGC_INT_AVBUSERR |	\
+		OTGC_INT_OVC |		\
+		OTGC_INT_RLCHG |	\
+		OTGC_INT_IDCHG		\
+	)
+
+
+static void fotg2_otg_init(struct usb_hcd *hcd)
+{
+	u32 val;
+
+	writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC |
+	       GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV,
+		hcd->regs + GLOBAL_ICR);
+
+	val = readl(hcd->regs + OTGC_SCR);
+	val &= ~(OTGC_SCR_A_SRP_RESP_TYPE | OTGC_SCR_A_SRP_DET_EN |
+		 OTGC_SCR_A_BUS_DROP      | OTGC_SCR_A_SET_B_HNP_EN);
+	val |= OTGC_SCR_A_BUS_REQ;
+	writel(val, hcd->regs + OTGC_SCR);
+
+	writel(OTGC_INT_A_TYPE, hcd->regs + OTGC_INT_EN);
+
+	/* setup MISC register, fixes timing problems */
+	val = readl(hcd->regs + HCD_MISC);
+	val |= 0xD;
+	writel(val, hcd->regs + HCD_MISC);
+
+	writel(~0, hcd->regs + GLOBAL_ISR);
+	writel(~0, hcd->regs + OTGC_INT_STS);
+}
+
+static int fotg2_ehci_reset(struct usb_hcd *hcd)
+{
+	int retval;
+
+	retval = ehci_setup(hcd);
+	if (retval)
+		return retval;
+
+	writel(GLOBAL_INT_POLARITY, hcd->regs + GLOBAL_ICR);
+	return 0;
+}
+
+static const struct hc_driver fotg2_ehci_hc_driver = {
+	.description		= hcd_name,
+	.product_desc		= "FOTG2 EHCI Host Controller",
+	.hcd_priv_size		= sizeof(struct ehci_hcd),
+	.irq			= ehci_irq,
+	.flags			= HCD_MEMORY | HCD_USB2,
+	.reset			= fotg2_ehci_reset,
+	.start			= ehci_run,
+	.stop			= ehci_stop,
+	.shutdown		= ehci_shutdown,
+	.urb_enqueue		= ehci_urb_enqueue,
+	.urb_dequeue		= ehci_urb_dequeue,
+	.endpoint_disable	= ehci_endpoint_disable,
+	.endpoint_reset		= ehci_endpoint_reset,
+	.get_frame_number	= ehci_get_frame,
+	.hub_status_data	= ehci_hub_status_data,
+	.hub_control		= ehci_hub_control,
+#if defined(CONFIG_PM)
+	.bus_suspend		= ehci_bus_suspend,
+	.bus_resume		= ehci_bus_resume,
+#endif
+	.relinquish_port	= ehci_relinquish_port,
+	.port_handed_over	= ehci_port_handed_over,
+
+	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+static irqreturn_t fotg2_ehci_irq(int irq, void *data)
+{
+	struct usb_hcd *hcd = data;
+	u32 icr, sts;
+	irqreturn_t retval;
+
+	icr = readl(hcd->regs + GLOBAL_ICR);
+	writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC |
+	       GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV,
+		hcd->regs + GLOBAL_ICR);
+
+	retval = IRQ_NONE;
+
+	sts = ~icr;
+	sts &= GLOBAL_INT_MASK_HC | GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV;
+	sts &= readl(hcd->regs + GLOBAL_ISR);
+	writel(sts, hcd->regs + GLOBAL_ISR);
+
+	if (unlikely(sts & GLOBAL_INT_MASK_DEV)) {
+		ehci_warn(hcd_to_ehci(hcd),
+			"Received unexpected irq for device role\n");
+		retval = IRQ_HANDLED;
+	}
+
+	if (unlikely(sts & GLOBAL_INT_MASK_OTG)) {
+		u32	otg_sts;
+
+		otg_sts = readl(hcd->regs + OTGC_INT_STS);
+		writel(otg_sts, hcd->regs + OTGC_INT_STS);
+
+		ehci_warn(hcd_to_ehci(hcd),
+			"Received unexpected irq for OTG management\n");
+		retval = IRQ_HANDLED;
+	}
+
+	if (sts & GLOBAL_INT_MASK_HC) {
+		retval = IRQ_NONE;
+	}
+
+	writel(icr, hcd->regs + GLOBAL_ICR);
+	return retval;
+}
+
+static int fotg2_ehci_probe(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	struct resource *res;
+	int irq , err;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		pr_err("no irq provided");
+		return irq;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		pr_err("no memory resource provided");
+		return -ENXIO;
+	}
+
+	hcd = usb_create_hcd(&fotg2_ehci_hc_driver, &pdev->dev,
+			     dev_name(&pdev->dev));
+	if (!hcd)
+		return -ENOMEM;
+
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		err = -ENOMEM;
+		goto err_put_hcd;
+	}
+
+	hcd->has_tt = 1;
+	hcd_to_ehci(hcd)->caps = hcd->regs;
+
+	fotg2_otg_init(hcd);
+
+	err = request_irq(irq, &fotg2_ehci_irq, IRQF_SHARED, "fotg2", hcd);
+	if (err)
+		goto err_put_hcd;
+
+	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (err)
+		goto err_put_hcd;
+
+	platform_set_drvdata(pdev, hcd);
+	return 0;
+
+err_put_hcd:
+	usb_put_hcd(hcd);
+	return err;
+}
+
+static int fotg2_ehci_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC |
+	       GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV,
+		hcd->regs + GLOBAL_ICR);
+
+	free_irq(hcd->irq, hcd);
+	usb_remove_hcd(hcd);
+	usb_put_hcd(hcd);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+MODULE_ALIAS("platform:" DRV_NAME);
+
+static struct platform_driver ehci_fotg2_driver = {
+	.probe		= fotg2_ehci_probe,
+	.remove		= fotg2_ehci_remove,
+	.driver.name	= DRV_NAME,
+};
diff --git a/target/linux/gemini/files-4.4/drivers/watchdog/gemini_wdt.c b/target/linux/gemini/files-4.4/drivers/watchdog/gemini_wdt.c
new file mode 100644
index 0000000000..20d30b64eb
--- /dev/null
+++ b/target/linux/gemini/files-4.4/drivers/watchdog/gemini_wdt.c
@@ -0,0 +1,378 @@
+/*
+ *  Watchdog driver for Cortina Systems Gemini SoC
+ *
+ *  Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/slab.h>
+
+#define GEMINI_WDCOUNTER	0x0
+#define GEMINI_WDLOAD		0x4
+#define GEMINI_WDRESTART	0x8
+
+#define WDRESTART_MAGIC		0x5AB9
+
+#define GEMINI_WDCR		0xC
+
+#define WDCR_CLOCK_5MHZ		(1 << 4)
+#define WDCR_SYS_RST		(1 << 1)
+#define WDCR_ENABLE		(1 << 0)
+
+#define WDT_CLOCK		5000000		/* 5 MHz */
+#define WDT_DEFAULT_TIMEOUT	13
+#define WDT_MAX_TIMEOUT		(0xFFFFFFFF / WDT_CLOCK)
+
+/* status bits */
+#define WDT_ACTIVE		0
+#define WDT_OK_TO_CLOSE		1
+
+static unsigned int timeout = WDT_DEFAULT_TIMEOUT;
+static int nowayout = WATCHDOG_NOWAYOUT;
+
+static DEFINE_SPINLOCK(gemini_wdt_lock);
+
+static struct platform_device *gemini_wdt_dev;
+
+struct gemini_wdt_struct {
+	struct resource		*res;
+	struct device		*dev;
+	void __iomem		*base;
+	unsigned long		status;
+};
+
+static struct watchdog_info gemini_wdt_info = {
+	.identity	= "Gemini watchdog",
+	.options	= WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING |
+			  WDIOF_SETTIMEOUT,
+};
+
+/* Disable the watchdog. */
+static void gemini_wdt_stop(struct gemini_wdt_struct *gemini_wdt)
+{
+	spin_lock(&gemini_wdt_lock);
+
+	__raw_writel(0, gemini_wdt->base + GEMINI_WDCR);
+
+	clear_bit(WDT_ACTIVE, &gemini_wdt->status);
+
+	spin_unlock(&gemini_wdt_lock);
+}
+
+/* Service the watchdog */
+static void gemini_wdt_service(struct gemini_wdt_struct *gemini_wdt)
+{
+	__raw_writel(WDRESTART_MAGIC, gemini_wdt->base + GEMINI_WDRESTART);
+}
+
+/* Enable and reset the watchdog. */
+static void gemini_wdt_start(struct gemini_wdt_struct *gemini_wdt)
+{
+	spin_lock(&gemini_wdt_lock);
+
+	__raw_writel(timeout * WDT_CLOCK, gemini_wdt->base + GEMINI_WDLOAD);
+
+	gemini_wdt_service(gemini_wdt);
+
+	/* set clock before enabling */
+	__raw_writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST,
+			gemini_wdt->base + GEMINI_WDCR);
+
+	__raw_writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST | WDCR_ENABLE,
+			gemini_wdt->base + GEMINI_WDCR);
+
+	set_bit(WDT_ACTIVE, &gemini_wdt->status);
+
+	spin_unlock(&gemini_wdt_lock);
+}
+
+/* Watchdog device is opened, and watchdog starts running. */
+static int gemini_wdt_open(struct inode *inode, struct file *file)
+{
+	struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(gemini_wdt_dev);
+
+	if (test_bit(WDT_ACTIVE, &gemini_wdt->status))
+		return -EBUSY;
+
+	file->private_data = gemini_wdt;
+
+	gemini_wdt_start(gemini_wdt);
+
+	return nonseekable_open(inode, file);
+}
+
+/* Close the watchdog device. */
+static int gemini_wdt_close(struct inode *inode, struct file *file)
+{
+	struct gemini_wdt_struct *gemini_wdt = file->private_data;
+
+	/* Disable the watchdog if possible */
+	if (test_bit(WDT_OK_TO_CLOSE, &gemini_wdt->status))
+		gemini_wdt_stop(gemini_wdt);
+	else
+		dev_warn(gemini_wdt->dev, "Device closed unexpectedly - timer will not stop\n");
+
+	return 0;
+}
+
+/* Handle commands from user-space. */
+static long gemini_wdt_ioctl(struct file *file, unsigned int cmd,
+			     unsigned long arg)
+{
+	struct gemini_wdt_struct *gemini_wdt = file->private_data;
+
+	int value;
+
+	switch (cmd) {
+	case WDIOC_KEEPALIVE:
+		gemini_wdt_service(gemini_wdt);
+		return 0;
+
+	case WDIOC_GETSUPPORT:
+		return copy_to_user((struct watchdog_info *)arg, &gemini_wdt_info,
+			sizeof(gemini_wdt_info)) ? -EFAULT : 0;
+
+	case WDIOC_SETTIMEOUT:
+		if (get_user(value, (int *)arg))
+			return -EFAULT;
+
+		if ((value < 1) || (value > WDT_MAX_TIMEOUT))
+			return -EINVAL;
+
+		timeout = value;
+
+		/* restart wdt to use new timeout */
+		gemini_wdt_stop(gemini_wdt);
+		gemini_wdt_start(gemini_wdt);
+
+		/* Fall through */
+	case WDIOC_GETTIMEOUT:
+		return put_user(timeout, (int *)arg);
+
+	case WDIOC_GETTIMELEFT:
+		value = __raw_readl(gemini_wdt->base + GEMINI_WDCOUNTER);
+		return put_user(value / WDT_CLOCK, (int *)arg);
+
+	default:
+		return -ENOTTY;
+	}
+}
+
+/* Refresh the watchdog whenever device is written to. */
+static ssize_t gemini_wdt_write(struct file *file, const char *data,
+						size_t len, loff_t *ppos)
+{
+	struct gemini_wdt_struct *gemini_wdt = file->private_data;
+
+	if (len) {
+		if (!nowayout) {
+			size_t i;
+
+			clear_bit(WDT_OK_TO_CLOSE, &gemini_wdt->status);
+			for (i = 0; i != len; i++) {
+				char c;
+
+				if (get_user(c, data + i))
+					return -EFAULT;
+				if (c == 'V')
+					set_bit(WDT_OK_TO_CLOSE,
+						&gemini_wdt->status);
+			}
+		}
+		gemini_wdt_service(gemini_wdt);
+	}
+
+	return len;
+}
+
+static const struct file_operations gemini_wdt_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.unlocked_ioctl = gemini_wdt_ioctl,
+	.open		= gemini_wdt_open,
+	.release	= gemini_wdt_close,
+	.write		= gemini_wdt_write,
+};
+
+static struct miscdevice gemini_wdt_miscdev = {
+	.minor		= WATCHDOG_MINOR,
+	.name		= "watchdog",
+	.fops		= &gemini_wdt_fops,
+};
+
+static void gemini_wdt_shutdown(struct platform_device *pdev)
+{
+	struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev);
+
+	gemini_wdt_stop(gemini_wdt);
+}
+
+static int gemini_wdt_probe(struct platform_device *pdev)
+{
+	int ret;
+	int res_size;
+	struct resource *res;
+	void __iomem *base;
+	struct gemini_wdt_struct *gemini_wdt;
+	unsigned int reg;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "can't get device resources\n");
+		return -ENODEV;
+	}
+
+	res_size = resource_size(res);
+	if (!request_mem_region(res->start, res_size, res->name)) {
+		dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
+			res_size, res->start);
+		return -ENOMEM;
+	}
+
+	base = ioremap(res->start, res_size);
+	if (!base) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -EIO;
+		goto fail0;
+	}
+
+	gemini_wdt = kzalloc(sizeof(struct gemini_wdt_struct), GFP_KERNEL);
+	if (!gemini_wdt) {
+		dev_err(&pdev->dev, "can't allocate interface\n");
+		ret = -ENOMEM;
+		goto fail1;
+	}
+
+	/* Setup gemini_wdt driver structure */
+	gemini_wdt->base = base;
+	gemini_wdt->res = res;
+
+	/* Set up platform driver data */
+	platform_set_drvdata(pdev, gemini_wdt);
+	gemini_wdt_dev = pdev;
+
+	if (gemini_wdt_miscdev.parent) {
+		ret = -EBUSY;
+		goto fail2;
+	}
+
+	gemini_wdt_miscdev.parent = &pdev->dev;
+
+	reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR);
+	if (reg & WDCR_ENABLE) {
+		/* Watchdog was enabled by the bootloader, disable it. */
+		reg &= ~(WDCR_ENABLE);
+		__raw_writel(reg, gemini_wdt->base + GEMINI_WDCR);
+	}
+
+	ret = misc_register(&gemini_wdt_miscdev);
+	if (ret)
+		goto fail2;
+
+	return 0;
+
+fail2:
+	platform_set_drvdata(pdev, NULL);
+	kfree(gemini_wdt);
+fail1:
+	iounmap(base);
+fail0:
+	release_mem_region(res->start, res_size);
+
+	return ret;
+}
+
+static int gemini_wdt_remove(struct platform_device *pdev)
+{
+	struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev);
+
+	platform_set_drvdata(pdev, NULL);
+	misc_deregister(&gemini_wdt_miscdev);
+	gemini_wdt_dev = NULL;
+	iounmap(gemini_wdt->base);
+	release_mem_region(gemini_wdt->res->start, resource_size(gemini_wdt->res));
+
+	kfree(gemini_wdt);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int gemini_wdt_suspend(struct platform_device *pdev, pm_message_t message)
+{
+	struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev);
+	unsigned int reg;
+
+	reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR);
+	reg &= ~(WDCR_WDENABLE);
+	__raw_writel(reg, gemini_wdt->base + GEMINI_WDCR);
+
+	return 0;
+}
+
+static int gemini_wdt_resume(struct platform_device *pdev)
+{
+	struct gemini_wdt_struct *gemini_wdt = platform_get_drvdata(pdev);
+	unsigned int reg;
+
+	if (gemini_wdt->status) {
+		reg = __raw_readw(gemini_wdt->base + GEMINI_WDCR);
+		reg |= WDCR_WDENABLE;
+		__raw_writel(reg, gemini_wdt->base + GEMINI_WDCR);
+	}
+
+	return 0;
+}
+#else
+#define gemini_wdt_suspend	NULL
+#define gemini_wdt_resume	NULL
+#endif
+
+static struct platform_driver gemini_wdt_driver = {
+	.probe		= gemini_wdt_probe,
+	.remove		= gemini_wdt_remove,
+	.shutdown	= gemini_wdt_shutdown,
+	.suspend	= gemini_wdt_suspend,
+	.resume		= gemini_wdt_resume,
+	.driver		= {
+		.name	= "gemini-wdt",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init gemini_wdt_init(void)
+{
+	return platform_driver_probe(&gemini_wdt_driver, gemini_wdt_probe);
+}
+
+static void __exit gemini_wdt_exit(void)
+{
+	platform_driver_unregister(&gemini_wdt_driver);
+}
+
+module_init(gemini_wdt_init);
+module_exit(gemini_wdt_exit);
+
+module_param(timeout, uint, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds");
+
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+
+MODULE_AUTHOR("Paulius Zaleckas");
+MODULE_DESCRIPTION("Watchdog driver for Gemini");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:gemini-wdt");
diff --git a/target/linux/gemini/patches-4.4/050-gpio-to-irq.patch b/target/linux/gemini/patches-4.4/050-gpio-to-irq.patch
new file mode 100644
index 0000000000..7572849864
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/050-gpio-to-irq.patch
@@ -0,0 +1,21 @@
+--- a/arch/arm/mach-gemini/gpio.c
++++ b/arch/arm/mach-gemini/gpio.c
+@@ -196,12 +196,18 @@ static int gemini_gpio_direction_output(
+ 	return 0;
+ }
+ 
++static int gemini_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
++{
++	return gpio + GPIO_IRQ_BASE;
++}
++
+ static struct gpio_chip gemini_gpio_chip = {
+ 	.label			= "Gemini",
+ 	.direction_input	= gemini_gpio_direction_input,
+ 	.get			= gemini_gpio_get,
+ 	.direction_output	= gemini_gpio_direction_output,
+ 	.set			= gemini_gpio_set,
++	.to_irq			= gemini_gpio_to_irq,
+ 	.base			= 0,
+ 	.ngpio			= GPIO_PORT_NUM * 32,
+ };
diff --git a/target/linux/gemini/patches-4.4/060-cache-fa.diff b/target/linux/gemini/patches-4.4/060-cache-fa.diff
new file mode 100644
index 0000000000..fc74c0af88
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/060-cache-fa.diff
@@ -0,0 +1,41 @@
+--- a/arch/arm/mm/cache-fa.S
++++ b/arch/arm/mm/cache-fa.S
+@@ -24,7 +24,8 @@
+ /*
+  * The size of one data cache line.
+  */
+-#define CACHE_DLINESIZE	16
++#define CACHE_DLINESIZE		16
++#define CACHE_DLINESHIFT	4
+ 
+ /*
+  * The total size of the data cache.
+@@ -169,7 +170,17 @@ ENTRY(fa_flush_kern_dcache_area)
+  *	- start  - virtual start address
+  *	- end	 - virtual end address
+  */
++__flush_whole_dcache:
++	mcr	p15, 0, r0, c7, c14, 0		@ clean/invalidate D cache
++	mov	r0, #0
++	mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer
++	mov	pc, lr
++
+ fa_dma_inv_range:
++	sub	r3, r1, r0			@ calculate total size
++	cmp	r3, #CACHE_DLIMIT		@ total size >= limit?
++	bhs	__flush_whole_dcache		@ flush whole D cache
++
+ 	tst	r0, #CACHE_DLINESIZE - 1
+ 	bic	r0, r0, #CACHE_DLINESIZE - 1
+ 	mcrne	p15, 0, r0, c7, c14, 1		@ clean & invalidate D entry
+@@ -193,6 +204,10 @@ fa_dma_inv_range:
+  *	- end	 - virtual end address
+  */
+ fa_dma_clean_range:
++	sub	r3, r1, r0			@ calculate total size
++	cmp	r3, #CACHE_DLIMIT		@ total size >= limit?
++	bhs	__flush_whole_dcache		@ flush whole D cache
++
+ 	bic	r0, r0, #CACHE_DLINESIZE - 1
+ 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+ 	add	r0, r0, #CACHE_DLINESIZE
diff --git a/target/linux/gemini/patches-4.4/110-watchdog-add-gemini_wdt-driver.patch b/target/linux/gemini/patches-4.4/110-watchdog-add-gemini_wdt-driver.patch
new file mode 100644
index 0000000000..bb66ae4dd0
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/110-watchdog-add-gemini_wdt-driver.patch
@@ -0,0 +1,29 @@
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -229,6 +229,16 @@ config 977_WATCHDOG
+ 
+ 	  Not sure? It's safe to say N.
+ 
++config GEMINI_WATCHDOG
++	tristate "Gemini watchdog"
++	depends on ARCH_GEMINI
++	help
++	  Say Y here if to include support for the watchdog timer
++	  embedded in the Cortina Systems Gemini family of devices.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called gemini_wdt.
++
+ config IXP4XX_WATCHDOG
+ 	tristate "IXP4xx Watchdog"
+ 	depends on ARCH_IXP4XX
+--- a/drivers/watchdog/Makefile
++++ b/drivers/watchdog/Makefile
+@@ -37,6 +37,7 @@ obj-$(CONFIG_OMAP_WATCHDOG) += omap_wdt.
+ obj-$(CONFIG_TWL4030_WATCHDOG) += twl4030_wdt.o
+ obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
+ obj-$(CONFIG_977_WATCHDOG) += wdt977.o
++obj-$(CONFIG_GEMINI_WATCHDOG) += gemini_wdt.o
+ obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
+ obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o
+ obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
diff --git a/target/linux/gemini/patches-4.4/111-arm-gemini-add-watchdog-device.patch b/target/linux/gemini/patches-4.4/111-arm-gemini-add-watchdog-device.patch
new file mode 100644
index 0000000000..ab32e9e844
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/111-arm-gemini-add-watchdog-device.patch
@@ -0,0 +1,33 @@
+--- a/arch/arm/mach-gemini/devices.c
++++ b/arch/arm/mach-gemini/devices.c
+@@ -116,3 +116,20 @@ int __init platform_register_rtc(void)
+ 	return platform_device_register(&gemini_rtc_device);
+ }
+ 
++static struct resource wdt_resource = {
++	.start	= GEMINI_WAQTCHDOG_BASE,
++	.end	= GEMINI_WAQTCHDOG_BASE + 0x18,
++	.flags  = IORESOURCE_MEM,
++};
++
++static struct platform_device wdt_device = {
++	.name		= "gemini-wdt",
++	.id		= 0,
++	.resource	= &wdt_resource,
++	.num_resources	= 1,
++};
++
++int __init platform_register_watchdog(void)
++{
++	return platform_device_register(&wdt_device);
++}
+--- a/arch/arm/mach-gemini/common.h
++++ b/arch/arm/mach-gemini/common.h
+@@ -27,6 +27,7 @@ extern int platform_register_uart(void);
+ extern int platform_register_pflash(unsigned int size,
+ 				    struct mtd_partition *parts,
+ 				    unsigned int nr_parts);
++extern int platform_register_watchdog(void);
+ 
+ extern void gemini_restart(enum reboot_mode mode, const char *cmd);
+ 
diff --git a/target/linux/gemini/patches-4.4/112-arm-gemini-register-watchdog-devices.patch b/target/linux/gemini/patches-4.4/112-arm-gemini-register-watchdog-devices.patch
new file mode 100644
index 0000000000..d7660be4ec
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/112-arm-gemini-register-watchdog-devices.patch
@@ -0,0 +1,40 @@
+--- a/arch/arm/mach-gemini/board-nas4220b.c
++++ b/arch/arm/mach-gemini/board-nas4220b.c
+@@ -94,6 +94,7 @@ static void __init ib4220b_init(void)
+ 	platform_device_register(&ib4220b_led_device);
+ 	platform_device_register(&ib4220b_key_device);
+ 	platform_register_rtc();
++	platform_register_watchdog();
+ }
+ 
+ MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
+--- a/arch/arm/mach-gemini/board-wbd111.c
++++ b/arch/arm/mach-gemini/board-wbd111.c
+@@ -121,6 +121,7 @@ static void __init wbd111_init(void)
+ 	platform_device_register(&wbd111_leds_device);
+ 	platform_device_register(&wbd111_keys_device);
+ 	platform_register_rtc();
++	platform_register_watchdog();
+ }
+ 
+ MACHINE_START(WBD111, "Wiliboard WBD-111")
+--- a/arch/arm/mach-gemini/board-wbd222.c
++++ b/arch/arm/mach-gemini/board-wbd222.c
+@@ -121,6 +121,7 @@ static void __init wbd222_init(void)
+ 	platform_device_register(&wbd222_leds_device);
+ 	platform_device_register(&wbd222_keys_device);
+ 	platform_register_rtc();
++	platform_register_watchdog();
+ }
+ 
+ MACHINE_START(WBD222, "Wiliboard WBD-222")
+--- a/arch/arm/mach-gemini/board-rut1xx.c
++++ b/arch/arm/mach-gemini/board-rut1xx.c
+@@ -80,6 +80,7 @@ static void __init rut1xx_init(void)
+ 	platform_device_register(&rut1xx_leds);
+ 	platform_device_register(&rut1xx_keys_device);
+ 	platform_register_rtc();
++	platform_register_watchdog();
+ }
+ 
+ MACHINE_START(RUT100, "Teltonika RUT100")
diff --git a/target/linux/gemini/patches-4.4/120-net-add-gemini-gmac-driver.patch b/target/linux/gemini/patches-4.4/120-net-add-gemini-gmac-driver.patch
new file mode 100644
index 0000000000..be11ae2423
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/120-net-add-gemini-gmac-driver.patch
@@ -0,0 +1,20 @@
+--- a/drivers/net/ethernet/Kconfig
++++ b/drivers/net/ethernet/Kconfig
+@@ -73,6 +73,7 @@ source "drivers/net/ethernet/neterion/Kc
+ source "drivers/net/ethernet/faraday/Kconfig"
+ source "drivers/net/ethernet/freescale/Kconfig"
+ source "drivers/net/ethernet/fujitsu/Kconfig"
++source "drivers/net/ethernet/gemini/Kconfig"
+ source "drivers/net/ethernet/hisilicon/Kconfig"
+ source "drivers/net/ethernet/hp/Kconfig"
+ source "drivers/net/ethernet/ibm/Kconfig"
+--- a/drivers/net/ethernet/Makefile
++++ b/drivers/net/ethernet/Makefile
+@@ -36,6 +36,7 @@ obj-$(CONFIG_NET_VENDOR_EXAR) += neterio
+ obj-$(CONFIG_NET_VENDOR_FARADAY) += faraday/
+ obj-$(CONFIG_NET_VENDOR_FREESCALE) += freescale/
+ obj-$(CONFIG_NET_VENDOR_FUJITSU) += fujitsu/
++obj-$(CONFIG_NET_VENDOR_GEMINI) += gemini/
+ obj-$(CONFIG_NET_VENDOR_HISILICON) += hisilicon/
+ obj-$(CONFIG_NET_VENDOR_HP) += hp/
+ obj-$(CONFIG_NET_VENDOR_IBM) += ibm/
diff --git a/target/linux/gemini/patches-4.4/121-arm-gemini-add-gmac-device.patch b/target/linux/gemini/patches-4.4/121-arm-gemini-add-gmac-device.patch
new file mode 100644
index 0000000000..6e77224906
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/121-arm-gemini-add-gmac-device.patch
@@ -0,0 +1,85 @@
+--- a/arch/arm/mach-gemini/common.h
++++ b/arch/arm/mach-gemini/common.h
+@@ -15,6 +15,7 @@
+ #include <linux/reboot.h>
+ 
+ struct mtd_partition;
++struct gemini_gmac_platform_data;
+ 
+ extern void gemini_map_io(void);
+ extern void gemini_init_irq(void);
+@@ -28,6 +29,7 @@ extern int platform_register_pflash(unsi
+ 				    struct mtd_partition *parts,
+ 				    unsigned int nr_parts);
+ extern int platform_register_watchdog(void);
++extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata);
+ 
+ extern void gemini_restart(enum reboot_mode mode, const char *cmd);
+ 
+--- a/arch/arm/mach-gemini/devices.c
++++ b/arch/arm/mach-gemini/devices.c
+@@ -17,6 +17,7 @@
+ #include <mach/irqs.h>
+ #include <mach/hardware.h>
+ #include <mach/global_reg.h>
++#include <mach/gmac.h>
+ 
+ static struct plat_serial8250_port serial_platform_data[] = {
+ 	{
+@@ -133,3 +134,56 @@ int __init platform_register_watchdog(vo
+ {
+ 	return platform_device_register(&wdt_device);
+ }
++
++static struct resource gmac_resources[] = {
++	{
++		.start	= GEMINI_TOE_BASE,
++		.end	= GEMINI_TOE_BASE + 0xffff,
++		.flags	= IORESOURCE_MEM,
++	},
++	{
++		.start	= IRQ_GMAC0,
++		.end	= IRQ_GMAC0,
++		.flags	= IORESOURCE_IRQ,
++	},
++	{
++		.start	= IRQ_GMAC1,
++		.end	= IRQ_GMAC1,
++		.flags	= IORESOURCE_IRQ,
++	},
++};
++
++static u64 gmac_dmamask = 0xffffffffUL;
++
++static struct platform_device ethernet_device = {
++	.name	= "gmac-gemini",
++	.id	= 0,
++	.dev	= {
++		.dma_mask		= &gmac_dmamask,
++		.coherent_dma_mask	= 0xffffffff,
++	},
++	.num_resources	= ARRAY_SIZE(gmac_resources),
++	.resource	= gmac_resources,
++};
++
++int platform_register_ethernet(struct gemini_gmac_platform_data *pdata)
++{
++	unsigned int reg;
++
++	reg = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++
++	reg &= ~(GMAC_GMII | GMAC_1_ENABLE);
++
++	if (pdata->bus_id[1])
++		reg |= GMAC_1_ENABLE;
++	else if (pdata->interface[0] == PHY_INTERFACE_MODE_GMII)
++		reg |= GMAC_GMII;
++
++	writel(reg, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++
++	ethernet_device.dev.platform_data = pdata;
++
++	return platform_device_register(&ethernet_device);
++}
diff --git a/target/linux/gemini/patches-4.4/122-arm-gemini-register-ethernet.patch b/target/linux/gemini/patches-4.4/122-arm-gemini-register-ethernet.patch
new file mode 100644
index 0000000000..1cd9efc20f
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/122-arm-gemini-register-ethernet.patch
@@ -0,0 +1,227 @@
+--- a/arch/arm/mach-gemini/board-nas4220b.c
++++ b/arch/arm/mach-gemini/board-nas4220b.c
+@@ -19,6 +19,7 @@
+ #include <linux/input.h>
+ #include <linux/gpio_keys.h>
+ #include <linux/io.h>
++#include <linux/platform_data/mdio-gpio.h>
+ 
+ #include <asm/setup.h>
+ #include <asm/mach-types.h>
+@@ -27,9 +28,27 @@
+ 
+ #include <mach/hardware.h>
+ #include <mach/global_reg.h>
++#include <mach/gmac.h>
+ 
+ #include "common.h"
+ 
++static struct mdio_gpio_platform_data ib4220b_mdio = {
++	.mdc		= 22,
++	.mdio		= 21,
++	.phy_mask	= ~(1 << 1),
++};
++
++static struct platform_device ib4220b_phy_device = {
++	.name	= "mdio-gpio",
++	.id	= 0,
++	.dev	= { .platform_data = &ib4220b_mdio, },
++};
++
++static struct gemini_gmac_platform_data ib4220b_gmac_data = {
++	.bus_id[0]	= "gpio-0:01",
++	.interface[0]	= PHY_INTERFACE_MODE_RGMII,
++};
++
+ static struct gpio_led ib4220b_leds[] = {
+ 	{
+ 		.name			= "nas4220b:orange:hdd",
+@@ -86,15 +105,47 @@ static struct platform_device ib4220b_ke
+ 	},
+ };
+ 
++static void __init ib4220b_gmac_init(void)
++{
++	unsigned int val;
++
++	val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_IO_DRIVING_CTRL));
++	val |= (0x3 << GMAC0_PADS_SHIFT) | (0x3 << GMAC1_PADS_SHIFT);
++	writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_IO_DRIVING_CTRL));
++
++	val = (0x0 << GMAC0_RXDV_SKEW_SHIFT) | (0xf << GMAC0_RXC_SKEW_SHIFT) |
++		(0x7 << GMAC0_TXEN_SKEW_SHIFT) | (0xb << GMAC0_TXC_SKEW_SHIFT) |
++		(0x0 << GMAC1_RXDV_SKEW_SHIFT) | (0xf << GMAC1_RXC_SKEW_SHIFT) |
++		(0x7 << GMAC1_TXEN_SKEW_SHIFT) | (0xa << GMAC1_TXC_SKEW_SHIFT);
++	writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_GMAC_CTRL_SKEW_CTRL));
++
++	writel(0x77777777, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_GMAC0_DATA_SKEW_CTRL));
++	writel(0x77777777, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_GMAC1_DATA_SKEW_CTRL));
++
++	val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_ARBITRATION1_CTRL)) & ~BURST_LENGTH_MASK;
++	val |= (0x20 << BURST_LENGTH_SHIFT) | GMAC0_HIGH_PRIO | GMAC1_HIGH_PRIO;
++	writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_ARBITRATION1_CTRL));
++}
++
+ static void __init ib4220b_init(void)
+ {
+ 	gemini_gpio_init();
++	ib4220b_gmac_init();
+ 	platform_register_uart();
+ 	platform_register_pflash(SZ_16M, NULL, 0);
+ 	platform_device_register(&ib4220b_led_device);
+ 	platform_device_register(&ib4220b_key_device);
+ 	platform_register_rtc();
+ 	platform_register_watchdog();
++	platform_device_register(&ib4220b_phy_device);
++	platform_register_ethernet(&ib4220b_gmac_data);
+ }
+ 
+ MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
+--- a/arch/arm/mach-gemini/board-wbd111.c
++++ b/arch/arm/mach-gemini/board-wbd111.c
+@@ -17,13 +17,34 @@
+ #include <linux/gpio_keys.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
++#include <linux/platform_data/mdio-gpio.h>
+ #include <asm/mach-types.h>
+ #include <asm/mach/arch.h>
+ #include <asm/mach/time.h>
+ 
++#include <mach/gmac.h>
+ 
+ #include "common.h"
+ 
++static struct mdio_gpio_platform_data wbd111_mdio = {
++	.mdc		= 22,
++	.mdio		= 21,
++	.phy_mask	= ~(1 << 1),
++};
++
++static struct platform_device wbd111_phy_device = {
++	.name	= "mdio-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &wbd111_mdio,
++	},
++};
++
++static struct gemini_gmac_platform_data gmac_data = {
++	.bus_id[0] = "gpio-0:01",
++	.interface[0] = PHY_INTERFACE_MODE_MII,
++};
++
+ static struct gpio_keys_button wbd111_keys[] = {
+ 	{
+ 		.code		= KEY_SETUP,
+@@ -122,6 +143,8 @@ static void __init wbd111_init(void)
+ 	platform_device_register(&wbd111_keys_device);
+ 	platform_register_rtc();
+ 	platform_register_watchdog();
++	platform_device_register(&wbd111_phy_device);
++	platform_register_ethernet(&gmac_data);
+ }
+ 
+ MACHINE_START(WBD111, "Wiliboard WBD-111")
+--- a/arch/arm/mach-gemini/board-wbd222.c
++++ b/arch/arm/mach-gemini/board-wbd222.c
+@@ -17,13 +17,36 @@
+ #include <linux/gpio_keys.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
++#include <linux/platform_data/mdio-gpio.h>
+ #include <asm/mach-types.h>
+ #include <asm/mach/arch.h>
+ #include <asm/mach/time.h>
+ 
++#include <mach/gmac.h>
+ 
+ #include "common.h"
+ 
++static struct mdio_gpio_platform_data wbd222_mdio = {
++	.mdc		= 22,
++	.mdio		= 21,
++	.phy_mask	= ~((1 << 1) | (1 << 3)),
++};
++
++static struct platform_device wbd222_phy_device = {
++	.name	= "mdio-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &wbd222_mdio,
++	},
++};
++
++static struct gemini_gmac_platform_data gmac_data = {
++	.bus_id[0] = "gpio-0:01",
++	.interface[0] = PHY_INTERFACE_MODE_MII,
++	.bus_id[1] = "gpio-0:03",
++        .interface[1] = PHY_INTERFACE_MODE_MII,
++};
++
+ static struct gpio_keys_button wbd222_keys[] = {
+ 	{
+ 		.code		= KEY_SETUP,
+@@ -122,6 +145,8 @@ static void __init wbd222_init(void)
+ 	platform_device_register(&wbd222_keys_device);
+ 	platform_register_rtc();
+ 	platform_register_watchdog();
++	platform_device_register(&wbd222_phy_device);
++	platform_register_ethernet(&gmac_data);
+ }
+ 
+ MACHINE_START(WBD222, "Wiliboard WBD-222")
+--- a/arch/arm/mach-gemini/board-rut1xx.c
++++ b/arch/arm/mach-gemini/board-rut1xx.c
+@@ -15,13 +15,35 @@
+ #include <linux/input.h>
+ #include <linux/gpio_keys.h>
+ #include <linux/sizes.h>
++#include <linux/platform_data/mdio-gpio.h>
+ 
+ #include <asm/mach-types.h>
+ #include <asm/mach/arch.h>
+ #include <asm/mach/time.h>
+ 
++#include <mach/gmac.h>
++
+ #include "common.h"
+ 
++static struct mdio_gpio_platform_data rut1xx_mdio = {
++	.mdc		= 22,
++	.mdio		= 21,
++	.phy_mask	= ~(1 << 1),
++};
++
++static struct platform_device rut1xx_phy_device = {
++	.name	= "mdio-gpio",
++	.id	= 0,
++	.dev	= {
++		.platform_data = &rut1xx_mdio,
++	},
++};
++
++static struct gemini_gmac_platform_data gmac_data = {
++	.bus_id[0] = "gpio-0:01",
++	.interface[0] = PHY_INTERFACE_MODE_MII,
++};
++
+ static struct gpio_keys_button rut1xx_keys[] = {
+ 	{
+ 		.code		= KEY_SETUP,
+@@ -81,6 +103,8 @@ static void __init rut1xx_init(void)
+ 	platform_device_register(&rut1xx_keys_device);
+ 	platform_register_rtc();
+ 	platform_register_watchdog();
++	platform_device_register(&rut1xx_phy_device);
++	platform_register_ethernet(&gmac_data);
+ }
+ 
+ MACHINE_START(RUT100, "Teltonika RUT100")
diff --git a/target/linux/gemini/patches-4.4/130-usb-ehci-add-fot2g-driver.patch b/target/linux/gemini/patches-4.4/130-usb-ehci-add-fot2g-driver.patch
new file mode 100644
index 0000000000..2192ad69ba
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/130-usb-ehci-add-fot2g-driver.patch
@@ -0,0 +1,133 @@
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -352,11 +352,13 @@ static void ehci_silence_controller(stru
+ 	ehci->rh_state = EHCI_RH_HALTED;
+ 	ehci_turn_off_all_ports(ehci);
+ 
++#ifndef CONFIG_ARCH_GEMINI
+ 	/* make BIOS/etc use companion controller during reboot */
+ 	ehci_writel(ehci, 0, &ehci->regs->configured_flag);
+ 
+ 	/* unblock posted writes */
+ 	ehci_readl(ehci, &ehci->regs->configured_flag);
++#endif
+ 	spin_unlock_irq(&ehci->lock);
+ }
+ 
+@@ -608,7 +610,9 @@ static int ehci_run (struct usb_hcd *hcd
+ 	// Philips, Intel, and maybe others need CMD_RUN before the
+ 	// root hub will detect new devices (why?); NEC doesn't
+ 	ehci->command &= ~(CMD_LRESET|CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET);
++#ifndef CONFIG_ARCH_GEMINI
+ 	ehci->command |= CMD_RUN;
++#endif
+ 	ehci_writel(ehci, ehci->command, &ehci->regs->command);
+ 	dbg_cmd (ehci, "init", ehci->command);
+ 
+@@ -628,9 +632,11 @@ static int ehci_run (struct usb_hcd *hcd
+ 	 */
+ 	down_write(&ehci_cf_port_reset_rwsem);
+ 	ehci->rh_state = EHCI_RH_RUNNING;
++#ifndef CONFIG_ARCH_GEMINI
+ 	ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
+ 	ehci_readl(ehci, &ehci->regs->command);	/* unblock posted writes */
+ 	msleep(5);
++#endif
+ 	up_write(&ehci_cf_port_reset_rwsem);
+ 	ehci->last_periodic_enable = ktime_get_real();
+ 
+@@ -768,9 +774,10 @@ static irqreturn_t ehci_irq (struct usb_
+ 		pcd_status = status;
+ 
+ 		/* resume root hub? */
++#ifndef CONFIG_ARCH_GEMINI
+ 		if (ehci->rh_state == EHCI_RH_SUSPENDED)
+ 			usb_hcd_resume_root_hub(hcd);
+-
++#endif
+ 		/* get per-port change detect bits */
+ 		if (ehci->has_ppcd)
+ 			ppcd = status >> 16;
+@@ -1296,6 +1303,11 @@ MODULE_LICENSE ("GPL");
+ #define	PLATFORM_DRIVER		ehci_hcd_sead3_driver
+ #endif
+ 
++#ifdef CONFIG_ARCH_GEMINI
++#include "ehci-fotg2.c"
++#define PLATFORM_DRIVER		ehci_fotg2_driver
++#endif
++
+ static int __init ehci_hcd_init(void)
+ {
+ 	int retval = 0;
+--- a/drivers/usb/host/ehci-timer.c
++++ b/drivers/usb/host/ehci-timer.c
+@@ -208,7 +208,9 @@ static void ehci_handle_controller_death
+ 
+ 	/* Clean up the mess */
+ 	ehci->rh_state = EHCI_RH_HALTED;
++#ifndef CONFIG_ARCH_GEMINI
+ 	ehci_writel(ehci, 0, &ehci->regs->configured_flag);
++#endif
+ 	ehci_writel(ehci, 0, &ehci->regs->intr_enable);
+ 	ehci_work(ehci);
+ 	end_unlink_async(ehci);
+--- a/drivers/usb/host/ehci.h
++++ b/drivers/usb/host/ehci.h
+@@ -657,7 +657,12 @@ static inline unsigned int
+ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc)
+ {
+ 	if (ehci_is_TDI(ehci)) {
+-		switch ((portsc >> (ehci->has_hostpc ? 25 : 26)) & 3) {
++#ifdef CONFIG_ARCH_GEMINI
++		portsc = readl(ehci_to_hcd(ehci)->regs + 0x80);
++		switch ((portsc>>22)&3) {
++#else
++		switch ((portsc>>26)&3) {
++#endif
+ 		case 0:
+ 			return 0;
+ 		case 1:
+--- a/drivers/usb/host/ehci-hub.c
++++ b/drivers/usb/host/ehci-hub.c
+@@ -1076,6 +1076,11 @@ int ehci_hub_control(
+ 			/* see what we found out */
+ 			temp = check_reset_complete (ehci, wIndex, status_reg,
+ 					ehci_readl(ehci, status_reg));
++#ifdef CONFIG_ARCH_GEMINI
++			/* restart schedule */
++		 	ehci->command |= CMD_RUN;
++			ehci_writel(ehci, ehci->command, &ehci->regs->command);
++#endif
+ 		}
+ 
+ 		/* transfer dedicated ports to the companion hc */
+--- a/include/linux/usb/ehci_def.h
++++ b/include/linux/usb/ehci_def.h
+@@ -112,8 +112,13 @@ struct ehci_regs {
+ 	u32		frame_list;	/* points to periodic list */
+ 	/* ASYNCLISTADDR: offset 0x18 */
+ 	u32		async_next;	/* address of next async queue head */
+-
++#ifndef CONFIG_ARCH_GEMINI
+ 	u32		reserved1[2];
++#else
++	u32		reserved1;
++	/* PORTSC: offset 0x20 for Faraday OTG */
++	u32		port_status[1];
++#endif
+ 
+ 	/* TXFILLTUNING: offset 0x24 */
+ 	u32		txfill_tuning;	/* TX FIFO Tuning register */
+@@ -125,8 +130,11 @@ struct ehci_regs {
+ 	u32		configured_flag;
+ #define FLAG_CF		(1<<0)		/* true: we'll support "high speed" */
+ 
++#ifndef CONFIG_ARCH_GEMINI
+ 	/* PORTSC: offset 0x44 */
+ 	u32		port_status[0];	/* up to N_PORTS */
++#endif
++
+ /* EHCI 1.1 addendum */
+ #define PORTSC_SUSPEND_STS_ACK 0
+ #define PORTSC_SUSPEND_STS_NYET 1
diff --git a/target/linux/gemini/patches-4.4/131-arm-gemini-add-usb-device.patch b/target/linux/gemini/patches-4.4/131-arm-gemini-add-usb-device.patch
new file mode 100644
index 0000000000..a75a5c1c6c
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/131-arm-gemini-add-usb-device.patch
@@ -0,0 +1,77 @@
+--- a/arch/arm/mach-gemini/devices.c
++++ b/arch/arm/mach-gemini/devices.c
+@@ -187,3 +187,64 @@ int platform_register_ethernet(struct ge
+ 
+ 	return platform_device_register(&ethernet_device);
+ }
++
++static struct resource usb0_resources[] = {
++	{
++		.start  = GEMINI_USB0_BASE,
++		.end    = GEMINI_USB0_BASE + 0xfff,
++		.flags  = IORESOURCE_MEM,
++	},
++	{
++		.start  = IRQ_USB0,
++		.end    = IRQ_USB0,
++		.flags  = IORESOURCE_IRQ,
++	},
++};
++
++static struct resource usb1_resources[] = {
++	{
++		.start  = GEMINI_USB1_BASE,
++		.end    = GEMINI_USB1_BASE + 0xfff,
++		.flags  = IORESOURCE_MEM,
++	},
++	{
++		.start  = IRQ_USB1,
++		.end    = IRQ_USB1,
++		.flags  = IORESOURCE_IRQ,
++	},
++};
++
++static u64 usb0_dmamask = 0xffffffffUL;
++static u64 usb1_dmamask = 0xffffffffUL;
++
++static struct platform_device usb_device[] = {
++	{
++		.name   = "ehci-fotg2",
++		.id     = 0,
++		.dev    = {
++			.dma_mask = &usb0_dmamask,
++			.coherent_dma_mask = 0xffffffff,
++		},
++		.num_resources  = ARRAY_SIZE(usb0_resources),
++		.resource       = usb0_resources,
++	},
++	{
++		.name   = "ehci-fotg2",
++		.id     = 1,
++		.dev    = {
++			.dma_mask = &usb1_dmamask,
++			.coherent_dma_mask = 0xffffffff,
++		},
++		.num_resources  = ARRAY_SIZE(usb1_resources),
++		.resource       = usb1_resources,
++	},
++};
++
++int __init platform_register_usb(unsigned int id)
++{
++	if (id > 1)
++		return -EINVAL;
++
++	return platform_device_register(&usb_device[id]);
++}
++
+--- a/arch/arm/mach-gemini/common.h
++++ b/arch/arm/mach-gemini/common.h
+@@ -30,6 +30,7 @@ extern int platform_register_pflash(unsi
+ 				    unsigned int nr_parts);
+ extern int platform_register_watchdog(void);
+ extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata);
++extern int platform_register_usb(unsigned int id);
+ 
+ extern void gemini_restart(enum reboot_mode mode, const char *cmd);
+ 
diff --git a/target/linux/gemini/patches-4.4/132-arm-gemini-register-usb.patch b/target/linux/gemini/patches-4.4/132-arm-gemini-register-usb.patch
new file mode 100644
index 0000000000..2a61d828ea
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/132-arm-gemini-register-usb.patch
@@ -0,0 +1,65 @@
+--- a/arch/arm/mach-gemini/board-wbd111.c
++++ b/arch/arm/mach-gemini/board-wbd111.c
+@@ -145,6 +145,7 @@ static void __init wbd111_init(void)
+ 	platform_register_watchdog();
+ 	platform_device_register(&wbd111_phy_device);
+ 	platform_register_ethernet(&gmac_data);
++	platform_register_usb(0);
+ }
+ 
+ MACHINE_START(WBD111, "Wiliboard WBD-111")
+--- a/arch/arm/mach-gemini/board-wbd222.c
++++ b/arch/arm/mach-gemini/board-wbd222.c
+@@ -147,6 +147,7 @@ static void __init wbd222_init(void)
+ 	platform_register_watchdog();
+ 	platform_device_register(&wbd222_phy_device);
+ 	platform_register_ethernet(&gmac_data);
++	platform_register_usb(0);
+ }
+ 
+ MACHINE_START(WBD222, "Wiliboard WBD-222")
+--- a/arch/arm/mach-gemini/board-rut1xx.c
++++ b/arch/arm/mach-gemini/board-rut1xx.c
+@@ -105,6 +105,7 @@ static void __init rut1xx_init(void)
+ 	platform_register_watchdog();
+ 	platform_device_register(&rut1xx_phy_device);
+ 	platform_register_ethernet(&gmac_data);
++	platform_register_usb(0);
+ }
+ 
+ MACHINE_START(RUT100, "Teltonika RUT100")
+--- a/arch/arm/mach-gemini/board-nas4220b.c
++++ b/arch/arm/mach-gemini/board-nas4220b.c
+@@ -134,10 +134,23 @@ static void __init ib4220b_gmac_init(voi
+ 		GLOBAL_ARBITRATION1_CTRL));
+ }
+ 
++static void __init usb_ib4220b_init(void)
++{
++	unsigned int val;
++
++	val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++	val &= ~(USB0_PLUG_MINIB | USB1_PLUG_MINIB);
++	val |= USB0_VBUS_ON | USB1_VBUS_ON;
++	writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++}
++
+ static void __init ib4220b_init(void)
+ {
+ 	gemini_gpio_init();
+ 	ib4220b_gmac_init();
++	usb_ib4220b_init();
+ 	platform_register_uart();
+ 	platform_register_pflash(SZ_16M, NULL, 0);
+ 	platform_device_register(&ib4220b_led_device);
+@@ -146,6 +159,8 @@ static void __init ib4220b_init(void)
+ 	platform_register_watchdog();
+ 	platform_device_register(&ib4220b_phy_device);
+ 	platform_register_ethernet(&ib4220b_gmac_data);
++	platform_register_usb(0);
++	platform_register_usb(1);
+ }
+ 
+ MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
diff --git a/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch b/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch
new file mode 100644
index 0000000000..d17b1a1f8e
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/140-arm-gemini-add-pci-support.patch
@@ -0,0 +1,66 @@
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -399,6 +399,7 @@ config ARCH_GEMINI
+ 	select CLKSRC_MMIO
+ 	select CPU_FA526
+ 	select GENERIC_CLOCKEVENTS
++	select MIGHT_HAVE_PCI
+ 	help
+ 	  Support for the Cortina Systems Gemini family SoCs
+ 
+--- a/arch/arm/mach-gemini/include/mach/hardware.h
++++ b/arch/arm/mach-gemini/include/mach/hardware.h
+@@ -68,4 +68,9 @@
+  */
+ #define IO_ADDRESS(x)	IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
+ 
++/*
++ * PCI subsystem macros
++ */
++#define pcibios_assign_all_busses()	1
++
+ #endif
+--- a/arch/arm/mach-gemini/include/mach/irqs.h
++++ b/arch/arm/mach-gemini/include/mach/irqs.h
+@@ -43,11 +43,14 @@
+ 
+ #define NORMAL_IRQ_NUM	32
+ 
+-#define GPIO_IRQ_BASE	NORMAL_IRQ_NUM
++#define PCI_IRQ_BASE	NORMAL_IRQ_NUM
++#define PCI_IRQ_NUM	4
++
++#define GPIO_IRQ_BASE	(NORMAL_IRQ_NUM + PCI_IRQ_NUM)
+ #define GPIO_IRQ_NUM	(3 * 32)
+ 
+ #define ARCH_TIMER_IRQ	IRQ_TIMER2
+ 
+-#define NR_IRQS		(NORMAL_IRQ_NUM + GPIO_IRQ_NUM)
++#define NR_IRQS		(NORMAL_IRQ_NUM + PCI_IRQ_NUM + GPIO_IRQ_NUM)
+ 
+ #endif /* __MACH_IRQS_H__ */
+--- a/arch/arm/mach-gemini/Makefile
++++ b/arch/arm/mach-gemini/Makefile
+@@ -6,6 +6,8 @@
+ 
+ obj-y			:= irq.o mm.o time.o devices.o gpio.o idle.o reset.o
+ 
++obj-$(CONFIG_PCI)	+= pci.o
++
+ # Board-specific support
+ obj-$(CONFIG_MACH_NAS4220B)	+= board-nas4220b.o
+ obj-$(CONFIG_MACH_RUT100)	+= board-rut1xx.o
+--- a/arch/arm/mach-gemini/mm.c
++++ b/arch/arm/mach-gemini/mm.c
+@@ -59,6 +59,11 @@ static struct map_desc gemini_io_desc[]
+ 		.length		= SZ_512K,
+ 		.type 		= MT_DEVICE,
+ 	}, {
++		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_PCI_IO_BASE),
++		.pfn		= __phys_to_pfn(GEMINI_PCI_IO_BASE),
++		.length		= SZ_512K,
++		.type 		= MT_DEVICE,
++	}, {
+ 		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_FLASH_CTRL_BASE),
+ 		.pfn		= __phys_to_pfn(GEMINI_FLASH_CTRL_BASE),
+ 		.length		= SZ_512K,
diff --git a/target/linux/gemini/patches-4.4/150-gemini-pata.patch b/target/linux/gemini/patches-4.4/150-gemini-pata.patch
new file mode 100644
index 0000000000..3da05c5193
--- /dev/null
+++ b/target/linux/gemini/patches-4.4/150-gemini-pata.patch
@@ -0,0 +1,192 @@
+--- a/arch/arm/mach-gemini/include/mach/global_reg.h
++++ b/arch/arm/mach-gemini/include/mach/global_reg.h
+@@ -227,7 +227,13 @@
+ #define USB0_PLUG_MINIB			(1 << 29)
+ #define GMAC_GMII			(1 << 28)
+ #define GMAC_1_ENABLE			(1 << 27)
+-/* TODO: define ATA/SATA bits */
++/* 011 - ata0 <-> sata0, sata1; bring out ata1
++ * 010 - ata1 <-> sata1, sata0; bring out ata0
++ * 001 - ata0 <-> sata0, ata1 <-> sata1; bring out ata1
++ * 000 - ata0 <-> sata0, ata1 <-> sata1; bring out ata0 */
++#define IDE_IOMUX_MASK			(7 << 24)
++#define IDE_IOMUX_SATA1_SATA0	(2 << 24)
++#define IDE_IOMUX_SATA0_SATA1	(3 << 24)
+ #define USB1_VBUS_ON			(1 << 23)
+ #define USB0_VBUS_ON			(1 << 22)
+ #define APB_CLKOUT_ENABLE		(1 << 21)
+--- a/arch/arm/mach-gemini/irq.c
++++ b/arch/arm/mach-gemini/irq.c
+@@ -89,6 +89,9 @@ void __init gemini_init_irq(void)
+ 			irq_set_handler(i, handle_edge_irq);
+ 			mode |= 1 << i;
+ 			level |= 1 << i;
++ 		} else if (i >= IRQ_IDE0 && i <= IRQ_IDE1) {
++ 			irq_set_handler(i, handle_edge_irq);
++ 			mode |= 1 << i;
+ 		} else {			
+ 			irq_set_handler(i, handle_level_irq);
+ 		}
+--- a/arch/arm/mach-gemini/common.h
++++ b/arch/arm/mach-gemini/common.h
+@@ -31,6 +31,7 @@ extern int platform_register_pflash(unsi
+ extern int platform_register_watchdog(void);
+ extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata);
+ extern int platform_register_usb(unsigned int id);
++extern int platform_register_pata(unsigned int id);
+ 
+ extern void gemini_restart(enum reboot_mode mode, const char *cmd);
+ 
+--- a/arch/arm/mach-gemini/devices.c
++++ b/arch/arm/mach-gemini/devices.c
+@@ -248,3 +248,67 @@ int __init platform_register_usb(unsigne
+ 	return platform_device_register(&usb_device[id]);
+ }
+ 
++static u64 pata_gemini_dmamask0 = 0xffffffffUL;
++static u64 pata_gemini_dmamask1 = 0xffffffffUL;
++
++static struct resource pata_gemini_resources0[] =
++{
++	[0] =	{
++			.start	= GEMINI_IDE0_BASE,
++			.end	= GEMINI_IDE0_BASE + 0x40,
++			.flags	= IORESOURCE_MEM,
++		},
++	[1] =	{
++			.start	= IRQ_IDE0,
++			.end	= IRQ_IDE0,
++			.flags  = IORESOURCE_IRQ,
++		},
++};
++
++static struct resource pata_gemini_resources1[] =
++{
++	[0] =	{
++			.start	= GEMINI_IDE1_BASE,
++			.end	= GEMINI_IDE1_BASE + 0x40,
++			.flags	= IORESOURCE_MEM,
++		},
++	[1] =	{
++			.start  = IRQ_IDE1,
++			.end    = IRQ_IDE1,
++			.flags  = IORESOURCE_IRQ,
++		},
++};
++
++static struct platform_device pata_gemini_devices[] =
++{
++	{
++		.name		= "pata-gemini",
++		.id		= 0,
++		.dev		=
++		{
++			.dma_mask		= &pata_gemini_dmamask0,
++			.coherent_dma_mask	= 0xffffffff,
++		},
++		.num_resources	= ARRAY_SIZE(pata_gemini_resources0),
++		.resource	= pata_gemini_resources0,
++	},
++	{
++		.name		= "pata-gemini",
++		.id		= 1,
++		.dev		=
++		{
++			.dma_mask		= &pata_gemini_dmamask1,
++			.coherent_dma_mask	= 0xffffffff,
++		},
++		.num_resources	= ARRAY_SIZE(pata_gemini_resources1),
++		.resource	= pata_gemini_resources1,
++	},
++};
++
++int __init platform_register_pata(unsigned int id)
++{
++	if (id > 1)
++		return -EINVAL;
++
++	return platform_device_register(&pata_gemini_devices[id]);
++}
+--- a/arch/arm/mach-gemini/mm.c
++++ b/arch/arm/mach-gemini/mm.c
+@@ -24,6 +24,11 @@ static struct map_desc gemini_io_desc[]
+ 		.length		= SZ_512K,
+ 		.type 		= MT_DEVICE,
+ 	}, {
++		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_SATA_BASE),
++		.pfn		= __phys_to_pfn(GEMINI_SATA_BASE),
++		.length		= SZ_512K,
++		.type		= MT_DEVICE,
++	}, {
+ 		.virtual	= (unsigned long)IO_ADDRESS(GEMINI_UART_BASE),
+ 		.pfn		= __phys_to_pfn(GEMINI_UART_BASE),
+ 		.length		= SZ_512K,
+--- a/drivers/ata/Kconfig
++++ b/drivers/ata/Kconfig
+@@ -564,6 +564,16 @@ config PATA_EP93XX
+ 
+ 	  If unsure, say N.
+ 
++config PATA_GEMINI
++	tristate "Gemini PATA support (Experimental)"
++	depends on ARCH_GEMINI
++	help
++	  This option enables support for the Gemini PATA-Controller.
++	  Note that the Gemini SoC has no native SATA-Controller but an
++	  onboard PATA-SATA bridge.
++
++	  If unsure, say N.
++
+ config PATA_HPT366
+ 	tristate "HPT 366/368 PATA support"
+ 	depends on PCI
+--- a/drivers/ata/Makefile
++++ b/drivers/ata/Makefile
+@@ -56,6 +56,7 @@ obj-$(CONFIG_PATA_CS5536)	+= pata_cs5536
+ obj-$(CONFIG_PATA_CYPRESS)	+= pata_cypress.o
+ obj-$(CONFIG_PATA_EFAR)		+= pata_efar.o
+ obj-$(CONFIG_PATA_EP93XX)	+= pata_ep93xx.o
++obj-$(CONFIG_PATA_GEMINI)	+= pata_gemini.o
+ obj-$(CONFIG_PATA_HPT366)	+= pata_hpt366.o
+ obj-$(CONFIG_PATA_HPT37X)	+= pata_hpt37x.o
+ obj-$(CONFIG_PATA_HPT3X2N)	+= pata_hpt3x2n.o
+--- a/arch/arm/mach-gemini/board-nas4220b.c
++++ b/arch/arm/mach-gemini/board-nas4220b.c
+@@ -146,11 +146,28 @@ static void __init usb_ib4220b_init(void
+ 		GLOBAL_MISC_CTRL));
+ }
+ 
++static void __init sata_ib4220b_init(void)
++{
++	unsigned val;
++
++	val = readl((void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++	val &= ~(IDE_IOMUX_MASK | PFLASH_PADS_DISABLE);
++	val |= IDE_PADS_ENABLE;
++	writel(val, (void __iomem*)(IO_ADDRESS(GEMINI_GLOBAL_BASE) +
++		GLOBAL_MISC_CTRL));
++
++	/* enabling ports for presence detection, master only */
++	writel(0x00000001, (void __iomem*)(IO_ADDRESS(GEMINI_SATA_BASE) + 0x18));
++	writel(0x00000001, (void __iomem*)(IO_ADDRESS(GEMINI_SATA_BASE) + 0x1c));
++}
++
+ static void __init ib4220b_init(void)
+ {
+ 	gemini_gpio_init();
+ 	ib4220b_gmac_init();
+ 	usb_ib4220b_init();
++	sata_ib4220b_init();
+ 	platform_register_uart();
+ 	platform_register_pflash(SZ_16M, NULL, 0);
+ 	platform_device_register(&ib4220b_led_device);
+@@ -161,6 +178,8 @@ static void __init ib4220b_init(void)
+ 	platform_register_ethernet(&ib4220b_gmac_data);
+ 	platform_register_usb(0);
+ 	platform_register_usb(1);
++	platform_register_pata(0);
++	platform_register_pata(1);
+ }
+ 
+ MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
diff --git a/target/linux/gemini/raidsonic/config-4.4 b/target/linux/gemini/raidsonic/config-4.4
new file mode 100644
index 0000000000..91605238b4
--- /dev/null
+++ b/target/linux/gemini/raidsonic/config-4.4
@@ -0,0 +1,5 @@
+CONFIG_CMDLINE="rootfstype=squashfs,jffs2 noinitrd console=ttyS0,19200 mem=128M mtdparts=physmap-flash.0:128k(BOOT),3072k(Kern),6144k(Ramdisk),6144k(Application),128k(VCTL),640k(CurConf),128k(FIS-directory),12288k@0x320000(rootfs),15360k@0x20000(firmware) root=/dev/mtdblock7"
+CONFIG_MACH_NAS4220B=y
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_SPLIT_FIRMWARE=y