openwrt-xburst/target/linux/gemini/patches-3.3/120-net-add-gemini-gmac-driver.patch

--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/gmac.h
@@ -0,0 +1,21 @@
+/*
+ * Gemini GMAC specific defines
+ *
+ * Copyright (C) 2008, 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __MACH_GMAC_H__
+#define __MACH_GMAC_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 /* __MACH_GMAC_H__ */
--- /dev/null
+++ b/drivers/net/gemini_negmac/gm_gmac.c
@@ -0,0 +1,1351 @@
+/*
+ *  Ethernet device driver for Gemini SoC.
+ *
+ *  Copyright (C) 2006, Storlink, Corp.
+ *  Copyright (C) 2008-2009, 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 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/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/compiler.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/completion.h>
+#include <linux/kthread.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <linux/semaphore.h>
+#include <mach/irqs.h>
+#include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <mach/gmac.h>
+
+#include "gm_gmac.h"
+
+/* #define GMAX_TX_INTR_DISABLED */
+/* #define DO_HW_CHKSUM */
+/* #define ENABLE_TSO */
+#define GMAC_USE_TXQ0
+/* #define GMAC_LEN_1_2_ISSUE */
+
+#define DEFAULT_RXQ_MAX_CNT			256
+
+/* define chip information */
+#define DRV_VERSION			"0.2"
+#define SL351x_DRIVER_NAME		"Gemini Ethernet driver " DRV_VERSION
+
+#ifdef GMAC_LEN_1_2_ISSUE
+	#define _DEBUG_PREFETCH_NUM	256
+static	int	_debug_prefetch_cnt;
+static	char _debug_prefetch_buf[_DEBUG_PREFETCH_NUM][4] __attribute__((aligned(4)));
+#endif
+
+static inline void gmac_write_reg(void __iomem *base, unsigned int offset,
+				  unsigned int data, unsigned int bit_mask)
+{
+	unsigned int reg_val;
+
+	reg_val = (__raw_readl(base + offset) & (~bit_mask)) | (data & bit_mask);
+	__raw_writel(reg_val, base + offset);
+}
+
+/*----------------------------------------------------------------------
+*	toe_init_free_queue
+*	(1) Initialize the Free Queue Descriptor Base Address & size
+*		Register: TOE_GLOBAL_BASE + 0x0004
+*	(2) Initialize DMA Read/Write pointer for
+*		SW Free Queue and HW Free Queue
+*	(3)	Initialize DMA Descriptors for
+*		SW Free Queue and HW Free Queue,
+*----------------------------------------------------------------------*/
+static void toe_init_free_queue(struct toe_private *toe)
+{
+	int			i;
+	DMA_RWPTR_T		rwptr_reg;
+	void			*desc_buf;
+	GMAC_RXDESC_T		*sw_desc_ptr;
+	struct sk_buff		*skb;
+
+	desc_buf = dma_alloc_coherent(toe->dev, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T),
+				      &toe->sw_freeq_desc_base_dma, GFP_KERNEL);
+	sw_desc_ptr = (GMAC_RXDESC_T *)desc_buf;
+	if (!desc_buf) {
+		dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+		return;
+	}
+	memset(desc_buf, 0, TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T));
+
+	/* DMA Queue Base & Size */
+	__raw_writel((toe->sw_freeq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_SW_FREEQ_DESC_POWER,
+			toe->global_base + GLOBAL_SW_FREEQ_BASE_SIZE_REG);
+
+	/* init descriptor base */
+	toe->swfq_desc_base = (unsigned int)desc_buf;
+
+	/* SW Free Queue Descriptors */
+	for (i = 0; i < TOE_SW_FREEQ_DESC_NUM; i++) {
+		sw_desc_ptr->word0.bits.buffer_size = SW_RX_BUF_SIZE;
+		skb = dev_alloc_skb(SW_RX_BUF_SIZE);	/* allocate socket buffer */
+		if (!skb) {
+			dev_err(toe->dev, "%s::skb buffer allocation fail\n", __func__);
+			return;
+		}
+		REG32(skb->data) = (unsigned int)skb;
+		skb_reserve(skb, SKB_RESERVE_BYTES);
+		sw_desc_ptr->word2.buf_adr = dma_map_single(toe->dev, skb->data,
+					SW_RX_BUF_SIZE - SKB_RESERVE_BYTES,
+					DMA_FROM_DEVICE);
+		sw_desc_ptr++;
+	}
+
+	dma_sync_single_for_device(toe->dev, toe->sw_freeq_desc_base_dma,
+				TOE_SW_FREEQ_DESC_NUM * sizeof(GMAC_RXDESC_T),
+				DMA_TO_DEVICE);
+
+	/* SW Free Queue Read/Write Pointer */
+	rwptr_reg.bits.wptr = TOE_SW_FREEQ_DESC_NUM - 1;
+	rwptr_reg.bits.rptr = 0;
+	__raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_SWFQ_RWPTR_REG);
+
+	/* DMA Queue Base & Size */
+	__raw_writel(TOE_HW_FREEQ_DESC_POWER,
+		toe->global_base + GLOBAL_HW_FREEQ_BASE_SIZE_REG);
+	rwptr_reg.bits.wptr = TOE_HW_FREEQ_DESC_NUM - 1;
+	rwptr_reg.bits.rptr = 0;
+	__raw_writel(rwptr_reg.bits32, toe->global_base + GLOBAL_HWFQ_RWPTR_REG);
+}
+
+/*----------------------------------------------------------------------
+*	toe_init_swtx_queue
+*	(2) Initialize the GMAC 0/1 SW TXQ Queue Descriptor Base Address & sizeup
+*		GMAC_SW_TX_QUEUE_BASE_REG(0x0050)
+*	(2) Initialize DMA Read/Write pointer for
+*		GMAC 0/1 SW TX Q0-5
+*----------------------------------------------------------------------*/
+static void toe_init_swtx_queue(struct net_device *dev)
+{
+	int			i;
+	struct gmac_private	*gmac = netdev_priv(dev);
+	struct toe_private	*toe = dev->ml_priv;
+	DMA_RWPTR_T		rwptr_reg;
+	unsigned int		rwptr_addr;
+	void			*desc_buf;
+	unsigned int		offset;
+
+	desc_buf = dma_alloc_coherent(toe->dev, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T),
+				      &gmac->swtxq_desc_base_dma, GFP_KERNEL);
+	gmac->swtxq_desc_base = (unsigned int)desc_buf;
+	if (!desc_buf) {
+		dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+		return;
+	}
+	memset(desc_buf, 0, TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T));
+	dma_sync_single_for_device(toe->dev, gmac->swtxq_desc_base_dma,
+				TOE_GMAC_SWTXQ_DESC_NUM * TOE_SW_TXQ_NUM * sizeof(GMAC_TXDESC_T),
+				DMA_TO_DEVICE);
+	__raw_writel((gmac->swtxq_desc_base_dma & DMA_Q_BASE_MASK) | TOE_GMAC_SWTXQ_DESC_POWER,
+			gmac->dma_base_addr + GMAC_SW_TX_QUEUE_BASE_REG);
+
+	/* GMAC0 SW TX Q0-Q5 */
+	offset = 0;
+	rwptr_reg.bits.wptr = 0;
+	rwptr_reg.bits.rptr = 0;
+	rwptr_addr = gmac->dma_base_addr + GMAC_SW_TX_QUEUE0_PTR_REG;
+	for (i = 0; i < TOE_SW_TXQ_NUM; i++) {
+		gmac->swtxq[i].rwptr_reg = rwptr_addr;
+		gmac->swtxq[i].desc_base_dma = (unsigned int)gmac->swtxq_desc_base_dma + offset;
+		gmac->swtxq[i].desc_base = (unsigned int)desc_buf + offset;
+		offset += TOE_GMAC_SWTXQ_DESC_NUM * sizeof(GMAC_TXDESC_T);
+		__raw_writel(rwptr_reg.bits32, rwptr_addr);
+		rwptr_addr += 4;
+	}
+}
+
+/*----------------------------------------------------------------------
+*	toe_init_default_queue
+*	(1) Initialize the default 0/1 Queue Header
+*		Register: TOE_DEFAULT_Q0_HDR_BASE (0x60002000)
+*			  TOE_DEFAULT_Q1_HDR_BASE (0x60002008)
+*	(2)	Initialize Descriptors of Default Queue 0/1
+*----------------------------------------------------------------------*/
+static void toe_init_default_queue(struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+	struct toe_private	*toe = dev->ml_priv;
+	volatile NONTOE_QHDR_T	*qhdr;
+	GMAC_RXDESC_T		*desc_ptr;
+
+	desc_ptr = dma_alloc_coherent(toe->dev, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T),
+				      &gmac->default_desc_base_dma, GFP_KERNEL);
+	if (!desc_ptr) {
+		dev_err(toe->dev, "%s::DMA ALLOC fail\n", __func__);
+		return;
+	}
+	memset(desc_ptr, 0, TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T));
+	dma_sync_single_for_device(toe->dev, gmac->default_desc_base_dma,
+			TOE_DEFAULT_Q_DESC_NUM * sizeof(GMAC_RXDESC_T),
+			DMA_TO_DEVICE);
+	gmac->default_desc_base = (unsigned int)desc_ptr;
+	qhdr = (volatile NONTOE_QHDR_T *)(toe->global_base + TOE_DEFAULT_Q_HDR_BASE(gmac->port_id));
+	qhdr->word0.base_size = ((unsigned int)gmac->default_desc_base_dma & NONTOE_QHDR0_BASE_MASK) | TOE_DEFAULT_Q_DESC_POWER;
+	qhdr->word1.bits32 = 0;
+	gmac->default_qhdr = (NONTOE_QHDR_T *)qhdr;
+}
+
+/*----------------------------------------------------------------------
+*	toe_init_interrupt_config
+*	Interrupt Select Registers are used to map interrupt to int0 or int1
+*	Int0 and int1 are wired to CPU 0/1 GMAC 0/1
+*	Interrupt Device Inteface data are used to pass device info to
+*		upper device driver or store status/statistics
+*	ISR handler
+*		(1) If status bit ON but masked, the prinf error message (bug issue)
+*		(2) If select bits are for me, handle it, else skip to let
+*			the other ISR handles it.
+*  Notes:
+*		GMACx init routine (for eCOS) or open routine (for Linux)
+*		enable the interrupt bits only which are selected for it.
+*
+*	Default Setting:
+*		GMAC0 intr bits ------>	int0 ----> eth0
+*		GMAC1 intr bits ------> int1 ----> eth1
+*		TOE intr -------------> int0 ----> eth0
+*		Classification Intr --> int0 ----> eth0
+*		Default Q0 -----------> int0 ----> eth0
+*		Default Q1 -----------> int1 ----> eth1
+*----------------------------------------------------------------------*/
+static void toe_init_interrupt_config(struct toe_private *toe)
+{
+	/* clear all status bits */
+	__raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+	__raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+	__raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+	__raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+	__raw_writel(0xffffffff, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+	/* Init select registers */
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+
+	/* disable all interrupt */
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_0_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_1_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_2_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_3_REG);
+	__raw_writel(0, toe->global_base + GLOBAL_INTERRUPT_ENABLE_4_REG);
+}
+
+static void toe_gmac_hw_start(struct gmac_private *gmac)
+{
+	GMAC_DMA_CTRL_T	dma_ctrl;
+
+	/* program dma control register */
+	dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_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_prot = 0;
+	dma_ctrl.bits.rd_burst_size = 3;
+	dma_ctrl.bits.rd_insert_bytes = RX_INSERT_BYTES;
+	dma_ctrl.bits.rd_bus = 3;
+	dma_ctrl.bits.td_prot = 0;
+	dma_ctrl.bits.td_burst_size = 3;
+	dma_ctrl.bits.td_bus = 3;
+
+	__raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+}
+
+static void toe_gmac_hw_stop(struct gmac_private *gmac)
+{
+	GMAC_DMA_CTRL_T	dma_ctrl;
+
+	/* program dma control register */
+	dma_ctrl.bits32 = __raw_readl(gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+	dma_ctrl.bits.rd_enable = 0;
+	dma_ctrl.bits.td_enable = 0;
+	__raw_writel(dma_ctrl.bits32, gmac->dma_base_addr + GMAC_DMA_CTRL_REG);
+}
+
+static void toe_gmac_init_chip(struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+	GMAC_CONFIG2_T	config2_val;
+	GMAC_CONFIG0_T	config0;
+	GMAC_CONFIG1_T	config1;
+	GMAC_STATUS_T	status;
+	GMAC_TX_WCR0_T	hw_weigh;
+	GMAC_TX_WCR1_T	sw_weigh;
+	GMAC_RX_FLTR_T	rx_filter;
+
+	/* set RX_FLTR register to receive all multicast packet */
+	rx_filter.bits32 = __raw_readl(dev->base_addr + GMAC_RX_FLTR);
+	rx_filter.bits.unicast = 1;
+	rx_filter.bits.multicast = 1;
+	rx_filter.bits.broadcast = 1;
+	__raw_writel(rx_filter.bits32, dev->base_addr + GMAC_RX_FLTR);
+
+	/* set flow control threshold */
+	config1.bits32 = 0;
+	config1.bits.set_threshold = 32 / 2;
+	config1.bits.rel_threshold = 32 / 4 * 3;
+	__raw_writel(config1.bits32, dev->base_addr + GMAC_CONFIG1);
+
+	/* set flow control threshold */
+	config2_val.bits32 = 0;
+	config2_val.bits.set_threshold = TOE_SW_FREEQ_DESC_NUM / 4;
+	config2_val.bits.rel_threshold = TOE_SW_FREEQ_DESC_NUM / 2;
+	__raw_writel(config2_val.bits32, dev->base_addr + GMAC_CONFIG2);
+
+	/* disable TX/RX and disable internal loop back */
+	config0.bits32 = __raw_readl(dev->base_addr + GMAC_CONFIG0);
+
+	config0.bits.max_len = 2;
+
+	gmac->flow_control_enable = 0;
+
+	config0.bits.tx_fc_en = 0;	/* disable tx flow control */
+	config0.bits.rx_fc_en = 0;	/* disable rx flow control */
+	config0.bits.dis_rx = 1;	/* disable rx */
+	config0.bits.dis_tx = 1;	/* disable tx */
+	config0.bits.loop_back = 0;	/* enable/disable GMAC loopback */
+	config0.bits.rx_err_detect = 1;
+	config0.bits.rgmii_en = 0;
+	config0.bits.rgmm_edge = 1;
+	config0.bits.rxc_inv = 0;
+	config0.bits.ipv4_rx_chksum = 1;	/* enable H/W to check ip checksum */
+	config0.bits.ipv6_rx_chksum = 1;	/* enable H/W to check ip checksum */
+	config0.bits.port0_chk_hwq = 1;
+	config0.bits.port1_chk_hwq = 1;
+	config0.bits.port0_chk_toeq = 1;
+	config0.bits.port1_chk_toeq = 1;
+	config0.bits.port0_chk_classq = 1;
+	config0.bits.port1_chk_classq = 1;
+
+	__raw_writel(config0.bits32, dev->base_addr + GMAC_CONFIG0);
+
+	hw_weigh.bits32 = 0;
+	hw_weigh.bits.hw_tq3 = 1;
+	hw_weigh.bits.hw_tq2 = 1;
+	hw_weigh.bits.hw_tq1 = 1;
+	hw_weigh.bits.hw_tq0 = 1;
+	__raw_writel(hw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_0_REG);
+
+	sw_weigh.bits32 = 0;
+	sw_weigh.bits.sw_tq5 = 1;
+	sw_weigh.bits.sw_tq4 = 1;
+	sw_weigh.bits.sw_tq3 = 1;
+	sw_weigh.bits.sw_tq2 = 1;
+	sw_weigh.bits.sw_tq1 = 1;
+	sw_weigh.bits.sw_tq0 = 1;
+	__raw_writel(sw_weigh.bits32, gmac->dma_base_addr + GMAC_TX_WEIGHTING_CTRL_1_REG);
+
+	/* set interface type */
+	status.bits32 = __raw_readl(dev->base_addr + GMAC_STATUS);
+
+	switch (gmac->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:
+		dev_err(&dev->dev, "Unsupported MII interface\n");
+		return;
+	}
+
+	__raw_writel(status.bits32, dev->base_addr + GMAC_STATUS);
+}
+
+static void toe_init_gmac(struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+	struct toe_private	*toe = dev->ml_priv;
+	u32			data;
+
+	/* GMAC initialization */
+	toe_gmac_init_chip(dev);
+
+	/* -----------------------------------------------------------
+	Enable GMAC interrupt & disable loopback
+	Notes:
+		GMACx init routine (for eCOS) or open routine (for Linux)
+		enable the interrupt bits only which are selected for him.
+	--------------------------------------------------------------*/
+
+	/* Enable Interrupt Bits */
+	if (gmac->port_id == 0) {
+		gmac->intr0_selected =	GMAC0_TXDERR_INT_BIT | GMAC0_TXPERR_INT_BIT	|
+					GMAC0_RXDERR_INT_BIT | GMAC0_RXPERR_INT_BIT	|
+					GMAC0_SWTQ05_FIN_INT_BIT | GMAC0_SWTQ05_EOF_INT_BIT |
+					GMAC0_SWTQ04_FIN_INT_BIT | GMAC0_SWTQ04_EOF_INT_BIT |
+					GMAC0_SWTQ03_FIN_INT_BIT | GMAC0_SWTQ03_EOF_INT_BIT |
+					GMAC0_SWTQ02_FIN_INT_BIT | GMAC0_SWTQ02_EOF_INT_BIT |
+					GMAC0_SWTQ01_FIN_INT_BIT | GMAC0_SWTQ01_EOF_INT_BIT |
+					GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT;
+
+#ifdef GMAX_TX_INTR_DISABLED
+		gmac->intr0_enabled = 0;
+#else
+		gmac->intr0_enabled = GMAC0_SWTQ00_FIN_INT_BIT | GMAC0_SWTQ00_EOF_INT_BIT;
+#endif
+
+		gmac->intr1_selected = TOE_IQ_ALL_BITS | TOE_CLASS_RX_INT_BITS |
+					GMAC0_HWTQ03_EOF_INT_BIT | GMAC0_HWTQ02_EOF_INT_BIT |
+					GMAC0_HWTQ01_EOF_INT_BIT | GMAC0_HWTQ00_EOF_INT_BIT |
+					DEFAULT_Q0_INT_BIT;
+		gmac->intr1_enabled =	DEFAULT_Q0_INT_BIT | TOE_IQ_ALL_BITS;
+		gmac->intr2_selected =	0xffffffff;	 /* TOE Queue 32-63 FUUL Intr */
+		gmac->intr2_enabled =	0xffffffff;
+		gmac->intr3_selected =	0xffffffff;	 /* TOE Queue 0-31 FUUL Intr */
+		gmac->intr3_enabled =	0xffffffff;
+		gmac->intr4_selected =	GMAC0_INT_BITS | CLASS_RX_FULL_INT_BITS |
+							HWFQ_EMPTY_INT_BIT | SWFQ_EMPTY_INT_BIT;
+		gmac->intr4_enabled =	GMAC0_INT_BITS | SWFQ_EMPTY_INT_BIT;
+
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) & ~gmac->intr0_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) & ~gmac->intr1_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) & ~gmac->intr2_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) & ~gmac->intr3_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) & ~gmac->intr4_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+	} else {
+		gmac->intr0_selected =	GMAC1_TXDERR_INT_BIT | GMAC1_TXPERR_INT_BIT	|
+					GMAC1_RXDERR_INT_BIT | GMAC1_RXPERR_INT_BIT	|
+					GMAC1_SWTQ15_FIN_INT_BIT | GMAC1_SWTQ15_EOF_INT_BIT |
+					GMAC1_SWTQ14_FIN_INT_BIT | GMAC1_SWTQ14_EOF_INT_BIT |
+					GMAC1_SWTQ13_FIN_INT_BIT | GMAC1_SWTQ13_EOF_INT_BIT |
+					GMAC1_SWTQ12_FIN_INT_BIT | GMAC1_SWTQ12_EOF_INT_BIT |
+					GMAC1_SWTQ11_FIN_INT_BIT | GMAC1_SWTQ11_EOF_INT_BIT |
+					GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT;
+#ifdef GMAX_TX_INTR_DISABLED
+		gmac->intr0_enabled =		0;
+#else
+		gmac->intr0_enabled =		GMAC1_SWTQ10_FIN_INT_BIT | GMAC1_SWTQ10_EOF_INT_BIT;
+#endif
+
+		gmac->intr1_selected =	DEFAULT_Q1_INT_BIT;
+		gmac->intr1_enabled =	DEFAULT_Q1_INT_BIT | TOE_IQ_ALL_BITS;
+		gmac->intr2_selected =	0;	 /* TOE Queue 32-63 FUUL Intr */
+		gmac->intr2_enabled =	0;
+		gmac->intr3_selected =	0;	 /* TOE Queue 0-31 FUUL Intr */
+		gmac->intr3_enabled =	0;
+		gmac->intr4_selected =	GMAC1_INT_BITS;
+		gmac->intr4_enabled =	GMAC1_INT_BITS;
+
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG) | gmac->intr0_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_0_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG) | gmac->intr1_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_1_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG) | gmac->intr2_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_2_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG) | gmac->intr3_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_3_REG);
+		data = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG) | gmac->intr4_selected;
+		__raw_writel(data, toe->global_base + GLOBAL_INTERRUPT_SELECT_4_REG);
+	}
+
+	/* enable only selected bits */
+	gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_0_REG,
+					gmac->intr0_enabled, gmac->intr0_selected);
+	gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_1_REG,
+					gmac->intr1_enabled, gmac->intr1_selected);
+	gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_2_REG,
+					gmac->intr2_enabled, gmac->intr2_selected);
+	gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_3_REG,
+					gmac->intr3_enabled, gmac->intr3_selected);
+	gmac_write_reg(toe->global_base, GLOBAL_INTERRUPT_ENABLE_4_REG,
+					gmac->intr4_enabled, gmac->intr4_selected);
+
+	/* start DMA process */
+	toe_gmac_hw_start(gmac);
+}
+
+static void toe_gmac_enable_tx_rx(struct net_device *dev)
+{
+	GMAC_CONFIG0_T	config0;
+
+	/* enable TX/RX */
+	config0.bits32 = __raw_readl(dev->base_addr + GMAC_CONFIG0);
+	config0.bits.dis_rx = 0;	/* enable rx */
+	config0.bits.dis_tx = 0;	/* enable tx */
+	__raw_writel(config0.bits32, dev->base_addr + GMAC_CONFIG0);
+}
+
+static void toe_gmac_disable_tx_rx(struct net_device *dev)
+{
+	GMAC_CONFIG0_T	config0;
+
+	/* enable TX/RX */
+	config0.bits32 = __raw_readl(dev->base_addr + GMAC_CONFIG0);
+	config0.bits.dis_rx = 1;	/* disable rx */
+	config0.bits.dis_tx = 1;	/* disable tx */
+	__raw_writel(config0.bits32, dev->base_addr + GMAC_CONFIG0);
+}
+
+static void toe_gmac_tx_complete(struct net_device *dev, unsigned int tx_qid)
+{
+	struct gmac_private		*gmac = netdev_priv(dev);
+	struct toe_private		*toe = dev->ml_priv;
+	GMAC_TXDESC_T			*curr_desc;
+	GMAC_TXDESC_0_T			word0;
+	GMAC_TXDESC_1_T			word1;
+	unsigned int			desc_count;
+	GMAC_SWTXQ_T			*swtxq;
+	DMA_RWPTR_T			rwptr;
+
+	/* get tx H/W completed descriptor virtual address */
+	/* check tx status and accumulate tx statistics */
+	swtxq = &gmac->swtxq[tx_qid];
+	for (;;) {
+		rwptr.bits32 = __raw_readl(swtxq->rwptr_reg);
+		if (rwptr.bits.rptr == swtxq->finished_idx)
+			break;
+		curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx;
+		dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+						swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+						sizeof(GMAC_TXDESC_T),
+						DMA_FROM_DEVICE);
+		word0.bits32 = curr_desc->word0.bits32;
+		word1.bits32 = curr_desc->word1.bits32;
+
+		if (word0.bits.status_tx_ok) {
+			dev->stats.tx_bytes += word1.bits.byte_count;
+			desc_count = word0.bits.desc_count;
+			if (desc_count == 0) {
+				dev_err(&dev->dev, "%s::Desc 0x%x = 0x%x, desc_count=%d\n", __func__, (u32)curr_desc, word0.bits32, desc_count);
+				BUG();
+			}
+			while (--desc_count) {
+				word0.bits.status_tx_ok = 0;
+				curr_desc->word0.bits32 = word0.bits32;
+				dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+								swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+								sizeof(GMAC_TXDESC_T),
+								DMA_TO_DEVICE);
+				swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM);
+				curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + swtxq->finished_idx;
+				dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+								swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+								sizeof(GMAC_TXDESC_T),
+								DMA_FROM_DEVICE);
+				word0.bits32 = curr_desc->word0.bits32;
+			}
+
+			word0.bits.status_tx_ok = 0;
+			dev_kfree_skb_any(swtxq->tx_skb[swtxq->finished_idx]);
+			swtxq->tx_skb[swtxq->finished_idx] = NULL;
+
+			curr_desc->word0.bits32 = word0.bits32;
+			dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+							swtxq->finished_idx * sizeof(GMAC_TXDESC_T),
+							sizeof(GMAC_TXDESC_T),
+							DMA_TO_DEVICE);
+			dev->stats.tx_packets++;
+			swtxq->finished_idx = RWPTR_ADVANCE_ONE(swtxq->finished_idx, TOE_GMAC_SWTXQ_DESC_NUM);
+		} else {
+			break;
+		}
+	}
+
+	if (netif_queue_stopped(dev))
+		netif_wake_queue(dev);
+}
+
+static int gmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+	struct toe_private	*toe = dev->ml_priv;
+	DMA_RWPTR_T		rwptr;
+	GMAC_TXDESC_T		*curr_desc;
+	int			snd_pages = skb_shinfo(skb)->nr_frags + 1;	/* get number of descriptor */
+	int			frag_id = 0;
+	int			len, total_len = skb->len;
+	struct net_device_stats	*isPtr = &dev->stats;
+	unsigned int		free_desc;
+	GMAC_SWTXQ_T		*swtxq;
+	register unsigned long	word0, word1, word2, word3;
+	unsigned short		wptr, rptr;
+
+#ifdef GMAC_LEN_1_2_ISSUE
+	int			total_pages;
+	total_pages = snd_pages;
+#endif
+
+	if (skb->len >= 0x10000) {
+		isPtr->tx_dropped++;
+		dev_err(&dev->dev, "%s::skb->len %d >= 64K\n", __func__, skb->len);
+		netif_stop_queue(dev);
+		return 1;
+	}
+
+#ifdef GMAC_USE_TXQ0
+	#define tx_qid	0
+#endif
+
+	swtxq = &gmac->swtxq[tx_qid];
+
+	rwptr.bits32 = __raw_readl(swtxq->rwptr_reg);
+	wptr = rwptr.bits.wptr;
+	rptr = rwptr.bits.rptr;
+
+	/*
+	 * check finished desc or empty BD
+	 * cannot check by read ptr of RW PTR register,
+	 * because the HW complete to send but the SW may NOT handle it
+	 */
+#ifdef	GMAX_TX_INTR_DISABLED
+	toe_gmac_tx_complete(dev, tx_qid);
+#endif
+	if (wptr >= swtxq->finished_idx)
+		free_desc = TOE_GMAC_SWTXQ_DESC_NUM - wptr + swtxq->finished_idx;
+	else
+		free_desc = swtxq->finished_idx - wptr;
+
+	if (free_desc < snd_pages) {
+		isPtr->tx_dropped++;
+		netif_stop_queue(dev);
+		return 1;
+	}
+
+	while (snd_pages) {
+		char *pkt_datap;
+
+		curr_desc = (GMAC_TXDESC_T *)swtxq->desc_base + wptr;
+		if (frag_id == 0) {
+			len = skb_headlen(skb);
+			pkt_datap = dma_map_single(toe->dev, skb->data, len, DMA_TO_DEVICE);
+		} else {
+			skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_id - 1];
+			len = frag->size;
+			pkt_datap = dma_map_page(toe->dev, frag->page.p, frag->page_offset, len, DMA_TO_DEVICE);
+		}
+
+		/* set TX descriptor */
+		word0 = len;
+		word3 = (dev->mtu + 14) | EOFIE_BIT;
+
+#ifdef DO_HW_CHKSUM
+		if (total_len <= 1514 && ip_hdr(skb) && (ip_hdr(skb)->frag_off & __constant_htons(0x3fff)))
+			word1  = total_len |
+					TSS_IP_CHKSUM_BIT  |
+					TSS_IPV6_ENABLE_BIT |
+					TSS_MTU_ENABLE_BIT;
+		else
+			word1 = total_len |
+					TSS_UDP_CHKSUM_BIT |
+					TSS_TCP_CHKSUM_BIT |
+					TSS_IP_CHKSUM_BIT  |
+					TSS_IPV6_ENABLE_BIT |
+					TSS_MTU_ENABLE_BIT;
+#else
+		word1 = total_len | TSS_MTU_ENABLE_BIT;
+#endif
+		word2 = pkt_datap;
+
+		if (frag_id == 0)
+			word3 |= SOF_BIT;
+
+		if (snd_pages == 1) {
+			word3 |= EOF_BIT;
+			swtxq->tx_skb[wptr] = skb;
+		} else
+			swtxq->tx_skb[wptr] = NULL;
+
+#ifdef GMAC_LEN_1_2_ISSUE
+		if ((total_pages != snd_pages) && (len == 1 || len == 2) && ((u32)pkt_datap & 0x03)) {
+			memcpy((void *)&_debug_prefetch_buf[_debug_prefetch_cnt][0], pkt_datap, len);
+			pkt_datap = (char *)&_debug_prefetch_buf[_debug_prefetch_cnt][0];
+			word2 = (unsigned long)__pa(pkt_datap);
+			_debug_prefetch_cnt++;
+			if (_debug_prefetch_cnt >= _DEBUG_PREFETCH_NUM)
+				_debug_prefetch_cnt = 0;
+		}
+#endif
+		curr_desc->word0.bits32 = word0;
+		curr_desc->word1.bits32 = word1;
+		curr_desc->word2.bits32 = word2;
+		curr_desc->word3.bits32 = word3;
+		free_desc--;
+		dma_sync_single_range_for_device(toe->dev, swtxq->desc_base_dma,
+						wptr * sizeof(GMAC_TXDESC_T),
+						sizeof(GMAC_TXDESC_T),
+						DMA_TO_DEVICE);
+		wptr = RWPTR_ADVANCE_ONE(wptr, TOE_GMAC_SWTXQ_DESC_NUM);
+		frag_id++;
+		snd_pages--;
+	}
+
+	SET_WPTR(swtxq->rwptr_reg, wptr);
+	dev->trans_start = jiffies;
+
+	return 0;
+}
+
+static void __gmac_set_mac_address(struct net_device *dev)
+{
+	unsigned int    reg_val;
+
+	reg_val = dev->dev_addr[0] + (dev->dev_addr[1] << 8) +
+		  (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
+	__raw_writel(reg_val, dev->base_addr + GMAC_STA_ADD0);
+	reg_val = (__raw_readl(dev->base_addr + GMAC_STA_ADD1) & 0xFFFF0000) +
+		  dev->dev_addr[4] + (dev->dev_addr[5] << 8);
+	__raw_writel(reg_val, dev->base_addr + GMAC_STA_ADD1);
+}
+
+static int gmac_set_mac_address(struct net_device *dev, void *addr)
+{
+	struct sockaddr *sa = addr;
+
+	memcpy(dev->dev_addr, sa->sa_data, dev->addr_len);
+
+	__gmac_set_mac_address(dev);
+
+	return 0;
+}
+
+static void gmac_get_mac_address(struct net_device *dev)
+{
+	unsigned int reg_val;
+
+	reg_val = __raw_readl(dev->base_addr + GMAC_STA_ADD0);
+	dev->dev_addr[0] = reg_val & 0xFF;
+	dev->dev_addr[1] = (reg_val >> 8) & 0xFF;
+	dev->dev_addr[2] = (reg_val >> 16) & 0xFF;
+	dev->dev_addr[3] = (reg_val >> 24) & 0xFF;
+	reg_val = __raw_readl(dev->base_addr + GMAC_STA_ADD1);
+	dev->dev_addr[4] = reg_val & 0xFF;
+	dev->dev_addr[5] = (reg_val >> 8) & 0xFF;
+
+	if (!is_valid_ether_addr(dev->dev_addr)) {
+		random_ether_addr(dev->dev_addr);
+		__gmac_set_mac_address(dev);
+	}
+}
+
+struct net_device_stats *gmac_get_stats(struct net_device *dev)
+{
+	if (netif_running(dev)) {
+		unsigned short multicast;
+
+		multicast = __raw_readw(dev->base_addr + GMAC_IN_MCAST) +
+				__raw_readw(dev->base_addr + GMAC_IN_BCAST);
+
+		dev->stats.rx_dropped += __raw_readw(dev->base_addr + GMAC_IN_DISCARDS);
+		dev->stats.rx_errors += __raw_readw(dev->base_addr + GMAC_IN_ERRORS);
+		dev->stats.rx_packets += __raw_readl(dev->base_addr + GMAC_IN_MAC1) + multicast;
+		dev->stats.multicast += multicast;
+	}
+
+	return &dev->stats;
+}
+
+/* TODO: If possible use crc32 from kernel lib */
+static unsigned const ethernet_polynomial = 0x04c11db7U;
+static unsigned int ether_crc(int length, unsigned char *data)
+{
+	int crc = -1;
+	unsigned int i;
+	unsigned int crc_val = 0;
+
+	while (--length >= 0) {
+		unsigned char current_octet = *data++;
+		int bit;
+		for (bit = 0; bit < 8; bit++, current_octet >>= 1)
+			crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ?
+				ethernet_polynomial : 0);
+	}
+	crc = ~crc;
+	for (i = 0; i < 32; i++)
+		crc_val = crc_val + (((crc << i) & 0x80000000) >> (31 - i));
+
+	return crc_val;
+}
+
+/*----------------------------------------------------------------------
+* toe_gmac_fill_free_q
+* allocate buffers for free queue.
+*----------------------------------------------------------------------*/
+static void toe_gmac_fill_free_q(struct toe_private *toe)
+{
+	struct sk_buff	*skb;
+	DMA_RWPTR_T	fq_rwptr;
+	GMAC_RXDESC_T	*fq_desc;
+	unsigned long	flags;
+
+	spin_lock_irqsave(&toe->freeq_lock, flags);
+	fq_rwptr.bits32 = __raw_readl(toe->global_base + GLOBAL_SWFQ_RWPTR_REG);
+	while ((unsigned short)RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr,
+		TOE_SW_FREEQ_DESC_NUM) != fq_rwptr.bits.rptr) {
+		skb = dev_alloc_skb(SW_RX_BUF_SIZE);
+		if (skb == NULL) {
+			dev_err(toe->dev, "%s::skb allocation fail\n", __func__);
+			break;
+		}
+		REG32(skb->data) = (unsigned int)skb;
+		skb_reserve(skb, SKB_RESERVE_BYTES);
+		fq_rwptr.bits.wptr = RWPTR_ADVANCE_ONE(fq_rwptr.bits.wptr,
+			TOE_SW_FREEQ_DESC_NUM);
+		fq_desc = (GMAC_RXDESC_T *)toe->swfq_desc_base + fq_rwptr.bits.wptr;
+		fq_desc->word2.buf_adr = dma_map_single(toe->dev, skb->data,
+					SW_RX_BUF_SIZE - SKB_RESERVE_BYTES,
+					DMA_FROM_DEVICE);
+		dma_sync_single_range_for_device(toe->dev,
+				toe->sw_freeq_desc_base_dma,
+				fq_rwptr.bits.wptr * sizeof(GMAC_RXDESC_T),
+				sizeof(GMAC_RXDESC_T),
+				DMA_TO_DEVICE);
+		SET_WPTR(toe->global_base + GLOBAL_SWFQ_RWPTR_REG, fq_rwptr.bits.wptr);
+	}
+	spin_unlock_irqrestore(&toe->freeq_lock, flags);
+}
+
+static void fill_free_q_worker(struct work_struct *work)
+{
+	struct toe_private *toe = container_of(work, struct toe_private, freq_work);
+
+	toe_gmac_fill_free_q(toe);
+}
+
+/*----------------------------------------------------------------------
+*	toe_gmac_handle_default_rxq
+*	(1) Get rx Buffer for default Rx queue
+*	(2) notify or call upper-routine to handle it
+*	(3) get a new buffer and insert it into SW free queue
+*	(4) Note: The SW free queue Read-Write Pointer should be locked when accessing
+*----------------------------------------------------------------------*/
+static void toe_gmac_handle_default_rxq(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	struct toe_private *toe = dev->ml_priv;
+	GMAC_RXDESC_T	*curr_desc;
+	struct sk_buff	*skb;
+	DMA_RWPTR_T	rwptr;
+	unsigned int	pkt_size;
+	int		max_cnt;
+	unsigned int	desc_count;
+	unsigned int	chksum_status, rx_status;
+	struct net_device_stats *isPtr = &dev->stats;
+
+	rwptr.bits32 = __raw_readl(&gmac->default_qhdr->word1);
+	max_cnt = DEFAULT_RXQ_MAX_CNT;
+	while ((--max_cnt) && rwptr.bits.rptr != rwptr.bits.wptr) {
+		curr_desc = (GMAC_RXDESC_T *)gmac->default_desc_base + rwptr.bits.rptr;
+		dma_sync_single_range_for_device(toe->dev,
+				gmac->default_desc_base_dma,
+				rwptr.bits.rptr * sizeof(GMAC_RXDESC_T),
+				sizeof(GMAC_RXDESC_T),
+				DMA_FROM_DEVICE);
+		rx_status = curr_desc->word0.bits.status;
+		chksum_status = curr_desc->word0.bits.chksum_status;
+		pkt_size = curr_desc->word1.bits.byte_count;	/* total byte count in a frame */
+		desc_count = curr_desc->word0.bits.desc_count;	/* get descriptor count per frame */
+		skb = (struct sk_buff *)(REG32(__va(curr_desc->word2.buf_adr) - SKB_RESERVE_BYTES));
+
+		if ((curr_desc->word0.bits32 & (GMAC_RXDESC_0_T_derr | GMAC_RXDESC_0_T_perr))
+			|| (pkt_size < 60) || (chksum_status & 0x4) || rx_status) {
+			if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_derr)
+				dev_err(&dev->dev, "%s::derr\n", __func__);
+			if (curr_desc->word0.bits32 & GMAC_RXDESC_0_T_perr)
+				dev_err(&dev->dev, "%s::perr\n", __func__);
+			if (rx_status && (rx_status == 4 || rx_status == 7))
+				isPtr->rx_crc_errors++;
+
+			dev_kfree_skb_irq(skb);
+			goto bad_frame;
+		}
+
+		if (curr_desc->word0.bits.drop)
+			dev_warn(&dev->dev, "%s::Drop\n", __func__);
+
+		/* get frame information from the first descriptor of the frame */
+		skb_reserve(skb, RX_INSERT_BYTES);	/* 16 byte align the IP fields. */
+		skb_put(skb, pkt_size);
+		skb->dev = dev;
+		skb->protocol = eth_type_trans(skb, dev);
+		if (chksum_status == RX_CHKSUM_IP_UDP_TCP_OK || chksum_status == RX_CHKSUM_IP_OK_ONLY)
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+		netif_rx(skb);	/* socket rx */
+		dev->last_rx = jiffies;
+
+		isPtr->rx_bytes += pkt_size;
+
+bad_frame:
+		/* advance one for Rx default Q 0/1 */
+		rwptr.bits.rptr = RWPTR_ADVANCE_ONE(rwptr.bits.rptr, TOE_DEFAULT_Q_DESC_NUM);
+		SET_RPTR(&gmac->default_qhdr->word1, rwptr.bits.rptr);
+	}
+
+	schedule_work(&toe->freq_work);
+}
+
+static irqreturn_t toe_gmac_interrupt(int irq, void *dev_instance)
+{
+	struct net_device	*dev = dev_instance;
+	struct gmac_private	*gmac = netdev_priv(dev);
+	struct toe_private	*toe = dev->ml_priv;
+	unsigned int		status0;
+	unsigned int		status1;
+	unsigned int		status2;
+	unsigned int		status3;
+	unsigned int		status4;
+	int			handled = 0;
+
+	/* read Interrupt status */
+	status0 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+	status1 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+	status2 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+	status3 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+	status4 = __raw_readl(toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+	/* clear interrupts */
+	if (status0)
+		__raw_writel(status0, toe->global_base + GLOBAL_INTERRUPT_STATUS_0_REG);
+	if (status1)
+		__raw_writel(status1, toe->global_base + GLOBAL_INTERRUPT_STATUS_1_REG);
+	if (status2)
+		__raw_writel(status2, toe->global_base + GLOBAL_INTERRUPT_STATUS_2_REG);
+	if (status3)
+		__raw_writel(status3, toe->global_base + GLOBAL_INTERRUPT_STATUS_3_REG);
+	if (status4)
+		__raw_writel(status4, toe->global_base + GLOBAL_INTERRUPT_STATUS_4_REG);
+
+	/* handle freeq interrupt first */
+	if (status4 & gmac->intr4_enabled) {
+		if ((status4 & SWFQ_EMPTY_INT_BIT) && (gmac->intr4_enabled & SWFQ_EMPTY_INT_BIT)) {
+			toe_gmac_fill_free_q(toe);
+			handled = 1;
+		}
+	}
+
+	/* Interrupt Status 1 */
+	if (status1 & gmac->intr1_enabled) {
+		/*
+		 * Handle GMAC 0/1 HW Tx queue 0-3 EOF events
+		 * Only count
+		 * TOE, Classification, and default queues interrupts are handled by ISR
+		 * because they should pass packets to upper layer
+		 */
+		if (gmac->port_id == 0) {
+			if (netif_running(dev) && (status1 & DEFAULT_Q0_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q0_INT_BIT)) {
+				toe_gmac_handle_default_rxq(dev);
+				handled = 1;
+			}
+		} else if (gmac->port_id == 1) {
+			if (netif_running(dev) && (status1 & DEFAULT_Q1_INT_BIT) && (gmac->intr1_enabled & DEFAULT_Q1_INT_BIT)) {
+				toe_gmac_handle_default_rxq(dev);
+				handled = 1;
+			}
+		}
+	}
+
+	/* Interrupt Status 0 */
+	if (status0 & gmac->intr0_enabled) {
+#ifndef	GMAX_TX_INTR_DISABLED
+		if (gmac->port_id == 1 && netif_running(dev) &&
+			(((status0 & GMAC1_SWTQ10_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_FIN_INT_BIT))
+			||
+			((status0 & GMAC1_SWTQ10_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC1_SWTQ10_EOF_INT_BIT)))) {
+			toe_gmac_tx_complete(dev, 0);
+			handled = 1;
+		}
+
+		if (gmac->port_id == 0 && netif_running(dev) &&
+			(((status0 & GMAC0_SWTQ00_FIN_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_FIN_INT_BIT))
+			||
+			((status0 & GMAC0_SWTQ00_EOF_INT_BIT) && (gmac->intr0_enabled & GMAC0_SWTQ00_EOF_INT_BIT)))) {
+			toe_gmac_tx_complete(dev, 0);
+			handled = 1;
+		}
+#endif
+	}
+
+	return IRQ_RETVAL(handled);
+}
+
+static int gmac_open(struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+	int			retval;
+
+	/* hook ISR */
+	retval = request_irq(dev->irq, toe_gmac_interrupt, 0, dev->name, dev);
+	if (retval)
+		return retval;
+
+	toe_init_gmac(dev);
+
+	netif_carrier_off(dev);
+	phy_start(gmac->phydev);
+
+	netif_start_queue(dev);
+
+	return 0;
+}
+
+static int gmac_close(struct net_device *dev)
+{
+	struct gmac_private	*gmac = netdev_priv(dev);
+
+	netif_stop_queue(dev);
+	mdelay(20);
+
+	if (gmac->phydev)
+		phy_stop(gmac->phydev);
+
+	/* stop tx/rx packet */
+	toe_gmac_disable_tx_rx(dev);
+	mdelay(20);
+
+	/* stop the chip's Tx and Rx DMA processes */
+	toe_gmac_hw_stop(gmac);
+
+	disable_irq(dev->irq);
+	free_irq(dev->irq, dev);
+
+	return 0;
+}
+
+static void gmac_get_phy_status(struct net_device *dev)
+{
+	struct gmac_private *gmac = netdev_priv(dev);
+	GMAC_CONFIG0_T	config0;
+	GMAC_STATUS_T	status, old_status;
+	struct phy_device *phydev = gmac->phydev;
+
+	old_status.bits32 = status.bits32 = __raw_readl(dev->base_addr + GMAC_STATUS);
+
+	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:
+		dev_warn(&dev->dev, "Not supported PHY speed (%d)\n", phydev->speed);
+	}
+
+	if (phydev->pause) {
+		if (gmac->flow_control_enable == 0) {
+			config0.bits32 = __raw_readl(dev->base_addr + GMAC_CONFIG0);
+			config0.bits.tx_fc_en = 1;	/* enable tx flow control */
+			config0.bits.rx_fc_en = 1;	/* enable rx flow control */
+			__raw_writel(config0.bits32, dev->base_addr + GMAC_CONFIG0);
+			dev_info(&dev->dev, "MII flow control enabled\n");
+		}
+		gmac->flow_control_enable = 1;
+	} else {
+		if (gmac->flow_control_enable == 1) {
+			config0.bits32 = __raw_readl(dev->base_addr + GMAC_CONFIG0);
+			config0.bits.tx_fc_en = 0;	/* disable tx flow control */
+			config0.bits.rx_fc_en = 0;	/* disable rx flow control */
+			__raw_writel(config0.bits32, dev->base_addr + GMAC_CONFIG0);
+			dev_info(&dev->dev, "MII flow control disabled\n");
+		}
+		gmac->flow_control_enable = 0;
+	}
+
+	if (old_status.bits32 != status.bits32) {
+		toe_gmac_disable_tx_rx(dev);
+		phy_print_status(phydev);
+		mdelay(10);	/* let GMAC consume packet */
+		__raw_writel(status.bits32, dev->base_addr + GMAC_STATUS);
+		if (status.bits.link)
+			toe_gmac_enable_tx_rx(dev);
+	}
+}
+
+static void gmac_set_rx_mode(struct net_device *dev)
+{
+	GMAC_RX_FLTR_T	filter;
+	unsigned int	mc_filter[2];	/* Multicast hash filter */
+	int		bit_nr;
+
+	filter.bits32 = 0;
+	filter.bits.error = 0;
+	if (dev->flags & IFF_PROMISC) {
+		filter.bits.error = 1;
+		filter.bits.promiscuous = 1;
+		filter.bits.broadcast = 1;
+		filter.bits.multicast = 1;
+		filter.bits.unicast = 1;
+		mc_filter[1] = mc_filter[0] = 0xffffffff;
+	} else if (dev->flags & IFF_ALLMULTI) {
+		filter.bits.broadcast = 1;
+		filter.bits.multicast = 1;
+		filter.bits.unicast = 1;
+		mc_filter[1] = mc_filter[0] = 0xffffffff;
+	} else {
+		struct netdev_hw_addr *ha;
+
+		filter.bits.broadcast = 1;
+		filter.bits.multicast = 1;
+		filter.bits.unicast = 1;
+		mc_filter[1] = mc_filter[0] = 0;
+		netdev_for_each_mc_addr(ha, dev) {
+			bit_nr = ether_crc(ETH_ALEN, ha->addr) & 0x3f;
+			if (bit_nr <= 32)
+				mc_filter[0] = mc_filter[0] | (1 << bit_nr);
+			else
+				mc_filter[1] = mc_filter[1] | (1 << (bit_nr - 32));
+		}
+	}
+	__raw_writel(filter.bits32, dev->base_addr + GMAC_RX_FLTR);
+	__raw_writel(mc_filter[0], dev->base_addr + GMAC_MCAST_FIL0);
+	__raw_writel(mc_filter[1], dev->base_addr + GMAC_MCAST_FIL1);
+}
+
+static void gmac_tx_timeout(struct net_device *dev)
+{
+	if (!netif_queue_stopped(dev))
+		netif_wake_queue(dev);
+
+	dev_warn(&dev->dev, "TX timeout\n");
+}
+
+const static struct net_device_ops gemini_gmac_ops = {
+	.ndo_open		= gmac_open,
+	.ndo_stop		= gmac_close,
+	.ndo_start_xmit		= gmac_start_xmit,
+	.ndo_get_stats		= gmac_get_stats,
+	.ndo_set_rx_mode	= gmac_set_rx_mode,
+	.ndo_set_mac_address	= gmac_set_mac_address,
+	.ndo_tx_timeout		= gmac_tx_timeout,
+};
+
+static void __devinit mac_init_drv(struct toe_private *toe)
+{
+	QUEUE_THRESHOLD_T	threshold;
+	DMA_SKB_SIZE_T		skb_size;
+
+	/* clear non TOE Queue Header Area */
+	memset(toe->global_base + TOE_NONTOE_QUE_HDR_BASE, 0,
+		NONTOE_Q_HDR_AREA_END - TOE_NONTOE_QUE_HDR_BASE);
+
+	/* clear TOE Queue Header Area */
+	memset(toe->global_base + TOE_TOE_QUE_HDR_BASE, 0,
+		TOE_Q_HDR_AREA_END - TOE_TOE_QUE_HDR_BASE);
+
+	/* Write GLOBAL_QUEUE_THRESHOLD_REG */
+	threshold.bits32 = 0;
+	threshold.bits.swfq_empty = (TOE_SW_FREEQ_DESC_NUM > 256) ? 255 :
+					TOE_SW_FREEQ_DESC_NUM / 2;
+	threshold.bits.hwfq_empty = (TOE_HW_FREEQ_DESC_NUM > 256) ? 256 / 4 :
+					TOE_HW_FREEQ_DESC_NUM / 4;
+	threshold.bits.toe_class = (TOE_TOE_DESC_NUM > 256) ? 256 / 4 :
+					TOE_TOE_DESC_NUM / 4;
+	threshold.bits.intrq = (TOE_INTR_DESC_NUM > 256) ? 256 / 4 :
+					TOE_INTR_DESC_NUM / 4;
+	__raw_writel(threshold.bits32, toe->global_base + GLOBAL_QUEUE_THRESHOLD_REG);
+
+	/* Init skb size */
+	skb_size.bits.hw_skb_size = HW_RX_BUF_SIZE;
+	skb_size.bits.sw_skb_size = SW_RX_BUF_SIZE;
+	__raw_writel(skb_size.bits32, toe->global_base + GLOBAL_DMA_SKB_SIZE_REG);
+
+	toe_init_free_queue(toe);
+	toe_init_interrupt_config(toe);
+}
+
+static int __devinit gmac_init_eth(struct platform_device *pdev,
+				   unsigned int num)
+{
+	struct gmac_private	*gmac;
+	struct net_device	*dev;
+	struct toe_private	*toe = platform_get_drvdata(pdev);
+	struct gemini_gmac_platform_data *pdata = pdev->dev.platform_data;
+
+	if (!pdata->bus_id[num])
+		return 0;
+
+	dev = alloc_etherdev(sizeof(*gmac));
+	if (dev == NULL) {
+		dev_err(&pdev->dev, "Can't allocate ethernet device #%d\n", num);
+		return -ENOMEM;
+	}
+
+	gmac = netdev_priv(dev);
+	dev->ml_priv = toe;
+	toe->net_dev[num] = dev;
+
+	gmac->dma_base_addr = toe->global_base + TOE_GMAC_DMA_BASE(num);
+	gmac->port_id = num;
+
+	dev->base_addr = toe->global_base + TOE_GMAC_BASE(num);
+	dev->irq = platform_get_irq(pdev, num);
+	dev->netdev_ops = &gemini_gmac_ops;
+	dev->watchdog_timeo = GMAC_DEV_TX_TIMEOUT;
+	dev->tx_queue_len = TOE_GMAC_SWTXQ_DESC_NUM;
+
+#ifdef DO_HW_CHKSUM
+	dev->features = NETIF_F_SG | NETIF_F_HW_CSUM;
+#ifdef ENABLE_TSO
+	dev->features |= NETIF_F_TSO;
+#endif
+#endif
+
+	toe_init_swtx_queue(dev);
+	toe_init_default_queue(dev);
+
+	gmac_get_mac_address(dev);
+
+	/* TODO: Do we need this? */
+	__raw_writel(0x55aa55aa, dev->base_addr + GMAC_STA_ADD2);
+
+	if (register_netdev(dev))
+		return -1;
+
+	gmac->phydev = phy_connect(dev, pdata->bus_id[num], &gmac_get_phy_status, 0,
+				 pdata->interface[num]);
+	if (IS_ERR(gmac->phydev))
+		return PTR_ERR(gmac->phydev);
+
+	gmac->phydev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause;
+	gmac->phydev->advertising = gmac->phydev->supported;
+
+	return 0;
+}
+
+static int __devinit gmac_probe(struct platform_device *pdev)
+{
+	struct resource				*res;
+	struct toe_private			*toe;
+	int					retval;
+
+	if (!pdev->dev.platform_data)
+		return -EINVAL;
+
+	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(struct toe_private), GFP_KERNEL);
+	if (!toe)
+		return -ENOMEM;
+
+	toe->dev = &pdev->dev;
+
+	toe->global_base = ioremap(res->start, resource_size(res));
+	if (!toe->global_base) {
+		dev_err(toe->dev, "ioremap failed\n");
+		retval = -EIO;
+		goto err_data;
+	}
+
+	platform_set_drvdata(pdev, toe);
+
+	mac_init_drv(toe);
+
+	INIT_WORK(&toe->freq_work, fill_free_q_worker);
+	spin_lock_init(&toe->freeq_lock);
+
+	retval = gmac_init_eth(pdev, GMAC_PORT0);
+	if (retval)
+		goto err_unmap;
+	retval = gmac_init_eth(pdev, GMAC_PORT1);
+	if (retval)
+		goto err_unmap;
+
+	dev_info(&pdev->dev, SL351x_DRIVER_NAME "\n");
+
+	return 0;
+
+err_unmap:
+	iounmap(toe->global_base);
+err_data:
+	kfree(toe);
+	return retval;
+}
+
+static int __devexit gmac_remove(struct platform_device *pdev)
+{
+	struct toe_private *toe = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if (toe->net_dev[i]) {
+			unregister_netdev(toe->net_dev[i]);
+			kfree(toe->net_dev[i]);
+		}
+
+	iounmap(toe->global_base);
+
+	kfree(toe);
+
+	return 0;
+}
+
+static struct platform_driver gemini_gmac_driver = {
+	.probe		= gmac_probe,
+	.remove		= __devexit_p(gmac_remove),
+	.driver		= {
+		.name	= "gemini-gmac",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init gemini_gmac_init(void)
+{
+	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);
+
+MODULE_AUTHOR("Paulius Zaleckas");
+MODULE_DESCRIPTION("Ethernet device driver for Gemini SoC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gemini-gmac");
--- /dev/null
+++ b/drivers/net/gemini_negmac/gm_gmac.h
@@ -0,0 +1,1488 @@
+/*
+ *  Register definitions for Gemini Ethernet device driver.
+ *
+ *  Copyright (C) 2006, Storlink, Corp.
+ *  Copyright (C) 2008-2009, 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _GMAC_SL351x_H
+#define _GMAC_SL351x_H
+#include <linux/skbuff.h>
+
+#define _PACKED_			__attribute__ ((aligned(1), packed))
+
+#ifndef BIT
+#define BIT(x)				(1 << (x))
+#endif
+
+#define REG32(addr)     		(*(volatile unsigned long  * const)(addr))
+
+/* Define frame size */
+#define GMAC_MAX_ETH_FRAME_SIZE		1514
+#define GMAC_TX_BUF_SIZE		((GMAC_MAX_ETH_FRAME_SIZE + 31) & (~31))
+
+#define SW_RX_BUF_SIZE			1536
+#define HW_RX_BUF_SIZE			1536
+
+#define GMAC_DEV_TX_TIMEOUT  		(10*HZ)
+#define	SKB_RESERVE_BYTES		16
+
+/*
+ * 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
+
+/*
+ * TOE DMA Queue Number 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
+ * They have same descriptor numbers.
+ * The base address and descriptor number are configured at
+ * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004)
+ */
+#define TOE_SW_FREEQ_DESC_POWER		8
+#define TOE_SW_FREEQ_DESC_NUM		(1<<TOE_SW_FREEQ_DESC_POWER)
+#define TOE_HW_FREEQ_DESC_POWER		8
+#define TOE_HW_FREEQ_DESC_NUM		(1<<TOE_HW_FREEQ_DESC_POWER)
+#define TOE_GMAC_SWTXQ_DESC_POWER	8
+#define TOE_GMAC_SWTXQ_DESC_NUM		(1<<TOE_GMAC_SWTXQ_DESC_POWER)
+#define TOE_GMAC_HWTXQ_DESC_POWER	8
+#define TOE_GMAC_HWTXQ_DESC_NUM		(1<<TOE_GMAC_HWTXQ_DESC_POWER)
+#define TOE_DEFAULT_Q_DESC_POWER	8
+#define TOE_DEFAULT_Q_DESC_NUM		(1<<TOE_DEFAULT_Q_DESC_POWER)
+#define TOE_TOE_DESC_POWER		8
+#define TOE_TOE_DESC_NUM		(1<<TOE_TOE_DESC_POWER)
+#define TOE_CLASS_DESC_POWER		8
+#define TOE_CLASS_DESC_NUM		(1<<TOE_CLASS_DESC_POWER)
+#define TOE_INTR_DESC_POWER		8
+#define TOE_INTR_DESC_NUM		(1<<TOE_INTR_DESC_POWER)
+
+#define TOE_TOE_QUEUE_MAX	64
+#define TOE_TOE_QUEUE_NUM	64
+#define TOE_CLASS_QUEUE_MAX	14
+#define TOE_CLASS_QUEUE_NUM	14
+#define TOE_INTR_QUEUE_MAX	4
+#define TOE_INTR_QUEUE_NUM	4
+#define TOE_SW_TXQ_MAX		6
+#define TOE_SW_TXQ_NUM		1
+#define TOE_HW_TXQ_MAX		4
+#define TOE_HW_TXQ_NUM		4
+
+#define RWPTR_ADVANCE_ONE(x, max)	((x == (max -1)) ? 0 : x+1)
+#define RWPTR_RECEDE_ONE(x, max)	((x == 0) ? (max -1) : x-1)
+#define SET_WPTR(addr, data)		(*(volatile u16 * const)((u32)(addr) + 2) = (u16)data)
+#define SET_RPTR(addr, data)		(*(volatile u16 * const)((u32)(addr)) = (u16)data)
+
+/*
+ * 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_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_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 */
+};
+
+/*
+ * 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)
+
+#if 1
+#define GMAC0_INT_BITS		(GMAC0_MIB_INT_BIT)
+#define GMAC1_INT_BITS		(GMAC1_MIB_INT_BIT)
+#else
+#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)
+#endif
+
+#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
+		unsigned int	ip_fixed_len	: 1;	// bit 22
+		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_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)
+
+/*
+ * 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	: 11;	// bit 10: 0	Tx Frame Byte Count
+		unsigned int	reserved	: 18;	// bit 28:11
+		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	0x7ff
+
+/*
+ * 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
+
+
+/*
+ * 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
+
+#define RX_INSERT_BYTES		RX_INSERT_2_BYTE
+/*
+ * 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;
+
+/*
+ * 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;
+
+/*
+ * GMAC private data
+ */
+typedef struct {
+	unsigned int		rwptr_reg;
+	unsigned int		desc_base;
+	unsigned int		desc_base_dma;
+	unsigned short		finished_idx;
+	struct sk_buff		*tx_skb[TOE_GMAC_SWTXQ_DESC_NUM];
+} GMAC_SWTXQ_T;
+
+struct gmac_private {
+	struct phy_device	*phydev;
+	unsigned int		port_id;
+	unsigned int		dma_base_addr;
+	unsigned int		swtxq_desc_base;
+	GMAC_SWTXQ_T		swtxq[TOE_SW_TXQ_NUM];
+	NONTOE_QHDR_T		*default_qhdr;
+	unsigned int		default_desc_base;
+	dma_addr_t		default_desc_base_dma;
+	dma_addr_t		swtxq_desc_base_dma;
+	unsigned int		flow_control_enable;
+	unsigned int		intr0_enabled;
+	unsigned int		intr1_enabled;
+	unsigned int		intr2_enabled;
+	unsigned int		intr3_enabled;
+	unsigned int		intr4_enabled;
+	unsigned int		intr0_selected;
+	unsigned int		intr1_selected;
+	unsigned int		intr2_selected;
+	unsigned int		intr3_selected;
+	unsigned int		intr4_selected;
+};
+
+struct toe_private {
+	void __iomem 		*global_base;
+	struct net_device	*net_dev[2];
+	struct device		*dev;
+	struct work_struct	freq_work;
+	spinlock_t		freeq_lock;
+	unsigned int		swfq_desc_base;
+	unsigned int		hwfq_desc_base;
+	unsigned int		hwfq_buf_base;
+	dma_addr_t		sw_freeq_desc_base_dma;
+	dma_addr_t		hw_freeq_desc_base_dma;
+	dma_addr_t		hwfq_buf_base_dma;
+	dma_addr_t		hwfq_buf_end_dma;
+};
+
+#define GMAC_PORT0	0
+#define GMAC_PORT1	1
+
+#endif /* _GMAC_SL351x_H */
--- /dev/null
+++ b/drivers/net/gemini_negmac/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC)+= gemini_negmac.o
+
+gemini_negmac-objs := gm_gmac.o
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -103,6 +103,13 @@ config NET_FC
 	  adaptor below. You also should have said Y to "SCSI support" and
 	  "SCSI generic support".
 
+config GEMINI_NET_ENGINE_GMAC
+	tristate "Gemini Gigabit Ethernet support"
+	depends on ARCH_GEMINI
+	select PHYLIB
+	help
+	  This driver supports Gemini TOE and NAT dual Gigabit Ethernet.
+
 config MII
 	tristate "Generic Media Independent Interface device support"
 	help
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_ETRAX_ETHERNET) += cris/
 obj-$(CONFIG_NET_DSA) += dsa/
 obj-$(CONFIG_ETHERNET) += ethernet/
 obj-$(CONFIG_FDDI) += fddi/
+obj-$(CONFIG_GEMINI_NET_ENGINE_GMAC) += gemini_negmac/
 obj-$(CONFIG_HIPPI) += hippi/
 obj-$(CONFIG_HAMRADIO) += hamradio/
 obj-$(CONFIG_IRDA) += irda/