[netdrvr] add 'uli526x' driver (a tulip clone)

We want to extract our LAN card driver from tulip core driver and
make a new file uli526x.c at tulip folder, because we have added
some ethtool interface support and non-eprom support in our driver
and may be other change in the futher.

If our controllers support are still contained in the tulip core
driver, I think it'll increase the complexity of maintenance, you
know, tulip core driver include several files and support so many
other controllers.  Furthermore, I tested the newest kernel 2.6.12
and I found the tulip driver can not work on our lan controller, and
I no time to debug it, so I aspired want to make a single uli526x.c
file just for our controllers.  Could you help us remove the ULi
m5261/m5263 lan controller support from tulip core driver and add
the new single uli526x.c file for us?

Signed-off-by: Peer Chen <Peer.Chen@uli.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

3 files changed, 1783 insertions, 0 deletions

diff --git a/drivers/net/tulip/Kconfig b/drivers/net/tulip/Kconfig
index e2cdaf8..8c9634a 100644
--- a/drivers/net/tulip/Kconfig
+++ b/drivers/net/tulip/Kconfig
@@ -135,6 +135,18 @@ config DM9102
 	  <file:Documentation/networking/net-modules.txt>.  The module will
 	  be called dmfe.
 
+config ULI526X
+	tristate "ULi M526x controller support"
+	depends on NET_TULIP && PCI
+	select CRC32
+	---help---
+	  This driver is for ULi M5261/M5263 10/100M Ethernet Controller
+	  (<http://www.uli.com.tw/>).
+
+	  To compile this driver as a module, choose M here and read
+	  <file:Documentation/networking/net-modules.txt>.  The module will
+	  be called uli526x.
+	  
 config PCMCIA_XIRCOM
 	tristate "Xircom CardBus support (new driver)"
 	depends on NET_TULIP && CARDBUS
diff --git a/drivers/net/tulip/Makefile b/drivers/net/tulip/Makefile
index 8bb9b46..451090d 100644
--- a/drivers/net/tulip/Makefile
+++ b/drivers/net/tulip/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_WINBOND_840)	+= winbond-840.o
 obj-$(CONFIG_DE2104X)		+= de2104x.o
 obj-$(CONFIG_TULIP)		+= tulip.o
 obj-$(CONFIG_DE4X5)		+= de4x5.o
+obj-$(CONFIG_ULI526X)		+= uli526x.o
 
 # Declare multi-part drivers.
 
diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c
new file mode 100644
index 0000000..27f99e0
--- /dev/null
+++ b/drivers/net/tulip/uli526x.c
@@ -0,0 +1,1770 @@
+/*
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; either version 2
+    of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    
+*/
+
+#define DRV_NAME	"uli526x"
+#define DRV_VERSION	"0.9.3"
+#define DRV_RELDATE	"2005-7-29"
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+
+#include <asm/processor.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/uaccess.h>
+
+
+/* Board/System/Debug information/definition ---------------- */
+#define PCI_ULI5261_ID  0x526110B9	/* ULi M5261 ID*/
+#define PCI_ULI5263_ID  0x526310B9	/* ULi M5263 ID*/
+
+#define ULI526X_IO_SIZE 0x100
+#define TX_DESC_CNT     0x20            /* Allocated Tx descriptors */
+#define RX_DESC_CNT     0x30            /* Allocated Rx descriptors */
+#define TX_FREE_DESC_CNT (TX_DESC_CNT - 2)	/* Max TX packet count */
+#define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3)	/* TX wakeup count */
+#define DESC_ALL_CNT    (TX_DESC_CNT + RX_DESC_CNT)
+#define TX_BUF_ALLOC    0x600
+#define RX_ALLOC_SIZE   0x620
+#define ULI526X_RESET    1
+#define CR0_DEFAULT     0
+#define CR6_DEFAULT     0x00080000      /* HD */
+#define CR6_DEFAULT_A     0x22240000
+#define CR7_DEFAULT     0x180c1
+#define CR15_DEFAULT    0x06            /* TxJabber RxWatchdog */
+#define TDES0_ERR_MASK  0x4302          /* TXJT, LC, EC, FUE */
+#define MAX_PACKET_SIZE 1514
+#define ULI5261_MAX_MULTICAST 14
+#define RX_COPY_SIZE	100
+#define MAX_CHECK_PACKET 0x8000
+
+#define ULI526X_10MHF      0
+#define ULI526X_100MHF     1
+#define ULI526X_10MFD      4
+#define ULI526X_100MFD     5
+#define ULI526X_AUTO       8
+
+#define ULI526X_TXTH_72	0x400000	/* TX TH 72 byte */
+#define ULI526X_TXTH_96	0x404000	/* TX TH 96 byte */
+#define ULI526X_TXTH_128	0x0000		/* TX TH 128 byte */
+#define ULI526X_TXTH_256	0x4000		/* TX TH 256 byte */
+#define ULI526X_TXTH_512	0x8000		/* TX TH 512 byte */
+#define ULI526X_TXTH_1K	0xC000		/* TX TH 1K  byte */
+
+#define ULI526X_TIMER_WUT  (jiffies + HZ * 1)/* timer wakeup time : 1 second */
+#define ULI526X_TX_TIMEOUT ((16*HZ)/2)	/* tx packet time-out time 8 s" */
+#define ULI526X_TX_KICK 	(4*HZ/2)	/* tx packet Kick-out time 2 s" */
+
+#define ULI526X_DBUG(dbug_now, msg, value) if (uli526x_debug || (dbug_now)) printk(KERN_ERR DRV_NAME ": %s %lx\n", (msg), (long) (value))
+
+#define SHOW_MEDIA_TYPE(mode) printk(KERN_ERR DRV_NAME ": Change Speed to %sMhz %s duplex\n",mode & 1 ?"100":"10", mode & 4 ? "full":"half");
+
+
+/* CR9 definition: SROM/MII */
+#define CR9_SROM_READ   0x4800
+#define CR9_SRCS        0x1
+#define CR9_SRCLK       0x2
+#define CR9_CRDOUT      0x8
+#define SROM_DATA_0     0x0
+#define SROM_DATA_1     0x4
+#define PHY_DATA_1      0x20000
+#define PHY_DATA_0      0x00000
+#define MDCLKH          0x10000
+
+#define PHY_POWER_DOWN	0x800
+
+#define SROM_V41_CODE   0x14
+
+#define SROM_CLK_WRITE(data, ioaddr) outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK,ioaddr);udelay(5);outl(data|CR9_SROM_READ|CR9_SRCS,ioaddr);udelay(5);
+
+/* Sten Check */
+#define DEVICE net_device
+
+/* Structure/enum declaration ------------------------------- */
+struct tx_desc {
+        u32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
+        char *tx_buf_ptr;               /* Data for us */
+        struct tx_desc *next_tx_desc;
+} __attribute__(( aligned(32) ));
+
+struct rx_desc {
+	u32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
+	struct sk_buff *rx_skb_ptr;	/* Data for us */
+	struct rx_desc *next_rx_desc;
+} __attribute__(( aligned(32) ));
+
+struct uli526x_board_info {
+	u32 chip_id;			/* Chip vendor/Device ID */
+	struct DEVICE *next_dev;	/* next device */
+	struct pci_dev *pdev;		/* PCI device */
+	spinlock_t lock;
+
+	long ioaddr;			/* I/O base address */
+	u32 cr0_data;
+	u32 cr5_data;
+	u32 cr6_data;
+	u32 cr7_data;
+	u32 cr15_data;
+
+	/* pointer for memory physical address */
+	dma_addr_t buf_pool_dma_ptr;	/* Tx buffer pool memory */
+	dma_addr_t buf_pool_dma_start;	/* Tx buffer pool align dword */
+	dma_addr_t desc_pool_dma_ptr;	/* descriptor pool memory */
+	dma_addr_t first_tx_desc_dma;
+	dma_addr_t first_rx_desc_dma;
+
+	/* descriptor pointer */
+	unsigned char *buf_pool_ptr;	/* Tx buffer pool memory */
+	unsigned char *buf_pool_start;	/* Tx buffer pool align dword */
+	unsigned char *desc_pool_ptr;	/* descriptor pool memory */
+	struct tx_desc *first_tx_desc;
+	struct tx_desc *tx_insert_ptr;
+	struct tx_desc *tx_remove_ptr;
+	struct rx_desc *first_rx_desc;
+	struct rx_desc *rx_insert_ptr;
+	struct rx_desc *rx_ready_ptr;	/* packet come pointer */
+	unsigned long tx_packet_cnt;	/* transmitted packet count */
+	unsigned long rx_avail_cnt;	/* available rx descriptor count */
+	unsigned long interval_rx_cnt;	/* rx packet count a callback time */
+
+	u16 dbug_cnt;
+	u16 NIC_capability;		/* NIC media capability */
+	u16 PHY_reg4;			/* Saved Phyxcer register 4 value */
+
+	u8 media_mode;			/* user specify media mode */
+	u8 op_mode;			/* real work media mode */
+	u8 phy_addr;
+	u8 link_failed;			/* Ever link failed */
+	u8 wait_reset;			/* Hardware failed, need to reset */
+	struct timer_list timer;
+
+	/* System defined statistic counter */
+	struct net_device_stats stats;
+
+	/* Driver defined statistic counter */
+	unsigned long tx_fifo_underrun;
+	unsigned long tx_loss_carrier;
+	unsigned long tx_no_carrier;
+	unsigned long tx_late_collision;
+	unsigned long tx_excessive_collision;
+	unsigned long tx_jabber_timeout;
+	unsigned long reset_count;
+	unsigned long reset_cr8;
+	unsigned long reset_fatal;
+	unsigned long reset_TXtimeout;
+
+	/* NIC SROM data */
+	unsigned char srom[128];
+	u8 init;	
+};
+
+enum uli526x_offsets {
+	DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
+	DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
+	DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
+	DCR15 = 0x78
+};
+
+enum uli526x_CR6_bits {
+	CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
+	CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
+	CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
+};
+
+/* Global variable declaration ----------------------------- */
+static int __devinitdata printed_version;
+static char version[] __devinitdata =
+	KERN_INFO DRV_NAME ": ULi M5261/M5263 net driver, version "
+	DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static int uli526x_debug;
+static unsigned char uli526x_media_mode = ULI526X_AUTO;
+static u32 uli526x_cr6_user_set;
+
+/* For module input parameter */
+static int debug;
+static u32 cr6set;
+static u32 m526x_id;
+static unsigned char mode = 8;
+
+/* function declaration ------------------------------------- */
+static int uli526x_open(struct DEVICE *);
+static int uli526x_start_xmit(struct sk_buff *, struct DEVICE *);
+static int uli526x_stop(struct DEVICE *);
+static struct net_device_stats * uli526x_get_stats(struct DEVICE *);
+static void uli526x_set_filter_mode(struct DEVICE *);
+static struct ethtool_ops netdev_ethtool_ops;
+static u16 read_srom_word(long ,int);
+static irqreturn_t uli526x_interrupt(int , void *, struct pt_regs *);
+static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long);
+static void allocate_rx_buffer(struct uli526x_board_info *);
+static void update_cr6(u32, unsigned long);
+static void send_filter_frame(struct DEVICE * ,int);
+static u16 phy_read(unsigned long, u8, u8, u32);
+static u16 phy_readby_cr10(unsigned long, u8, u8);
+static void phy_write(unsigned long, u8, u8, u16, u32);
+static void phy_writeby_cr10(unsigned long, u8, u8, u16);
+static void phy_write_1bit(unsigned long, u32, u32);
+static u16 phy_read_1bit(unsigned long, u32);
+static u8 uli526x_sense_speed(struct uli526x_board_info *);
+static void uli526x_process_mode(struct uli526x_board_info *);
+static void uli526x_timer(unsigned long);
+static void uli526x_rx_packet(struct DEVICE *, struct uli526x_board_info *);
+static void uli526x_free_tx_pkt(struct DEVICE *, struct uli526x_board_info *);
+static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *);
+static void uli526x_dynamic_reset(struct DEVICE *);
+static void uli526x_free_rxbuffer(struct uli526x_board_info *);
+static void uli526x_init(struct DEVICE *);
+static void uli526x_set_phyxcer(struct uli526x_board_info *);
+
+/* ULI526X network baord routine ---------------------------- */
+
+/*
+ *	Search ULI526X board ,allocate space and register it
+ */
+
+static int __devinit uli526x_init_one (struct pci_dev *pdev,
+				    const struct pci_device_id *ent)
+{
+	struct uli526x_board_info *db;	/* board information structure */
+	struct net_device *dev;
+	int i, err;
+	u32 configval;
+
+	ULI526X_DBUG(0, "uli526x_init_one()", 0);
+
+	if (!printed_version++)
+		printk(version);
+
+	/* Init network device */
+	dev = alloc_etherdev(sizeof(*db));
+	if (dev == NULL)
+		return -ENOMEM;
+	SET_MODULE_OWNER(dev);
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
+	if (pci_set_dma_mask(pdev, 0xffffffff)) {
+		printk(KERN_WARNING DRV_NAME ": 32-bit PCI DMA not available.\n");
+		err = -ENODEV;
+		goto err_out_free;
+	}
+
+	/* Enable Master/IO access, Disable memory access */
+	err = pci_enable_device(pdev);
+	if (err)
+		goto err_out_free;
+
+	if (!pci_resource_start(pdev, 0)) {
+		printk(KERN_ERR DRV_NAME ": I/O base is zero\n");
+		err = -ENODEV;
+		goto err_out_disable;
+	}
+
+	if (pci_resource_len(pdev, 0) < (ULI526X_IO_SIZE) ) {
+		printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n");
+		err = -ENODEV;
+		goto err_out_disable;
+	}
+
+	if (pci_request_regions(pdev, DRV_NAME)) {
+		printk(KERN_ERR DRV_NAME ": Failed to request PCI regions\n");
+		err = -ENODEV;
+		goto err_out_disable;
+	}
+
+	//add by clearzhang 2004/7/8
+	pci_read_config_dword(pdev,0x0,&configval);
+	m526x_id = configval;
+	if(configval == 0x526310b9)
+	{
+		//printk("is m5263\n");
+		pci_read_config_dword(pdev,0x0c,&configval);
+		configval = ((configval & 0xffff00ff) | 0x8000);
+		pci_write_config_dword(pdev,0x0c,configval);
+	}
+	/* Init system & device */
+	db = netdev_priv(dev);
+
+	/* Allocate Tx/Rx descriptor memory */
+	db->desc_pool_ptr = pci_alloc_consistent(pdev, sizeof(struct tx_desc) * DESC_ALL_CNT + 0x20, &db->desc_pool_dma_ptr);
+	db->buf_pool_ptr = pci_alloc_consistent(pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4, &db->buf_pool_dma_ptr);
+
+	db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
+	db->first_tx_desc_dma = db->desc_pool_dma_ptr;
+	db->buf_pool_start = db->buf_pool_ptr;
+	db->buf_pool_dma_start = db->buf_pool_dma_ptr;
+
+	db->chip_id = ent->driver_data;
+	db->ioaddr = pci_resource_start(pdev, 0);
+	
+	db->pdev = pdev;
+	db->init = 1;
+	
+	dev->base_addr = db->ioaddr;
+	dev->irq = pdev->irq;
+	pci_set_drvdata(pdev, dev);
+	
+	/* Register some necessary functions */
+	dev->open = &uli526x_open;
+	dev->hard_start_xmit = &uli526x_start_xmit;
+	dev->stop = &uli526x_stop;
+	dev->get_stats = &uli526x_get_stats;
+	dev->set_multicast_list = &uli526x_set_filter_mode;
+	dev->ethtool_ops = &netdev_ethtool_ops;
+	spin_lock_init(&db->lock);
+
+		
+	/* read 64 word srom data */
+	for (i = 0; i < 64; i++)
+		((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr, i));
+
+	/* Set Node address */
+	if(((u16 *) db->srom)[0] == 0xffff)		/* SROM absent, so read MAC address from ID Table */
+	{
+		outl(0x10000, db->ioaddr + DCR0);	//Diagnosis mode
+		outl(0x1c0, db->ioaddr + DCR13);	//Reset dianostic pointer port
+		outl(0, db->ioaddr + DCR14);		//Clear reset port
+		outl(0x10, db->ioaddr + DCR14);		//Reset ID Table pointer
+		outl(0, db->ioaddr + DCR14);		//Clear reset port
+		outl(0, db->ioaddr + DCR13);		//Clear CR13
+		outl(0x1b0, db->ioaddr + DCR13);	//Select ID Table access port
+		//Read MAC address from CR14
+		for (i = 0; i < 6; i++)
+			dev->dev_addr[i] = inl(db->ioaddr + DCR14);
+		//Read end
+		outl(0, db->ioaddr + DCR13);	//Clear CR13
+		outl(0, db->ioaddr + DCR0);		//Clear CR0
+		udelay(10);
+	}
+	else		/*Exist SROM*/
+	{
+		for (i = 0; i < 6; i++)
+			dev->dev_addr[i] = db->srom[20 + i];
+	}
+	err = register_netdev (dev);
+	if (err)
+		goto err_out_res;
+
+	printk(KERN_INFO "%s: ULi M%04lx at pci%s,",dev->name,ent->driver_data >> 16,pci_name(pdev));
+	
+	for (i = 0; i < 6; i++)
+		printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
+	printk(", irq %d.\n", dev->irq);
+
+	pci_set_master(pdev);
+
+	return 0;
+
+err_out_res:
+	pci_release_regions(pdev);
+err_out_disable:
+	pci_disable_device(pdev);
+err_out_free:
+	pci_set_drvdata(pdev, NULL);
+	free_netdev(dev);
+
+	return err;
+}
+
+
+static void __devexit uli526x_remove_one (struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct uli526x_board_info *db = netdev_priv(dev);
+
+	ULI526X_DBUG(0, "uli526x_remove_one()", 0);
+
+ 	if (dev) {
+		pci_free_consistent(db->pdev, sizeof(struct tx_desc) *
+					DESC_ALL_CNT + 0x20, db->desc_pool_ptr,
+ 					db->desc_pool_dma_ptr);
+		pci_free_consistent(db->pdev, TX_BUF_ALLOC * TX_DESC_CNT + 4,
+					db->buf_pool_ptr, db->buf_pool_dma_ptr);
+		unregister_netdev(dev);
+		pci_release_regions(pdev);
+		free_netdev(dev);	/* free board information */
+		pci_set_drvdata(pdev, NULL);
+	}
+
+	ULI526X_DBUG(0, "uli526x_remove_one() exit", 0);
+}
+
+
+/*
+ *	Open the interface.
+ *	The interface is opened whenever "ifconfig" actives it.
+ */
+
+static int uli526x_open(struct DEVICE *dev)
+{
+	int ret;
+	struct uli526x_board_info *db = netdev_priv(dev);
+
+	ULI526X_DBUG(0, "uli526x_open", 0);
+
+	ret = request_irq(dev->irq, &uli526x_interrupt, SA_SHIRQ, dev->name, dev);
+	if (ret)
+		return ret;
+
+	/* system variable init */
+	db->cr6_data = CR6_DEFAULT | uli526x_cr6_user_set;
+	if(m526x_id == 0x526310b9)
+	{  
+		//printk("is 5263\n");
+		db->cr6_data = CR6_DEFAULT_A | uli526x_cr6_user_set;
+	}
+	db->tx_packet_cnt = 0;
+	db->rx_avail_cnt = 0;
+	db->link_failed = 1;
+	netif_carrier_off(dev);
+	db->wait_reset = 0;
+
+	db->NIC_capability = 0xf;	/* All capability*/
+	db->PHY_reg4 = 0x1e0;
+
+	/* CR6 operation mode decision */
+	db->cr6_data |= ULI526X_TXTH_256;
+	db->cr0_data = CR0_DEFAULT;
+	
+	/* Initilize ULI526X board */
+	uli526x_init(dev);
+
+	/* Active System Interface */
+	netif_wake_queue(dev);
+
+	/* set and active a timer process */
+	init_timer(&db->timer);
+	db->timer.expires = ULI526X_TIMER_WUT + HZ * 2;
+	db->timer.data = (unsigned long)dev;
+	db->timer.function = &uli526x_timer;
+	add_timer(&db->timer);
+
+	return 0;
+}
+
+
+/*	Initilize ULI526X board
+ *	Reset ULI526X board
+ *	Initilize TX/Rx descriptor chain structure
+ *	Send the set-up frame
+ *	Enable Tx/Rx machine
+ */
+
+static void uli526x_init(struct DEVICE *dev)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+	unsigned long ioaddr = db->ioaddr;
+	u8	phy_tmp;
+	u16	phy_value;
+	u16 phy_reg_reset;
+
+	ULI526X_DBUG(0, "uli526x_init()", 0);
+
+	/* Reset M526x MAC controller */
+	outl(ULI526X_RESET, ioaddr + DCR0);	/* RESET MAC */
+	udelay(100);
+	outl(db->cr0_data, ioaddr + DCR0);
+	udelay(5);
+
+	/* Phy addr : In some boards,M5261/M5263 phy address != 1 */
+	db->phy_addr = 1;
+	for(phy_tmp=0;phy_tmp<32;phy_tmp++)
+	{
+		phy_value=phy_read(db->ioaddr,phy_tmp,3,db->chip_id);//peer add
+		if(phy_value != 0xffff&&phy_value!=0)
+		{
+			db->phy_addr = phy_tmp;
+			break;
+		}
+	}
+	if(phy_tmp == 32)
+		printk(KERN_WARNING "Can not find the phy address!!!");
+	/* Parser SROM and media mode */
+	db->media_mode = uli526x_media_mode;
+
+	//add by clearzhang 2004/7/8
+	/* RESET Phyxcer Chip by GPR port bit 7 */
+	//outl(0x180, ioaddr + DCR12);		/* Let bit 7 output port */
+	//outl(0x0, ioaddr + DCR12);	/* Clear RESET signal */
+
+	/* Phyxcer capability setting */
+	phy_reg_reset = phy_read(db->ioaddr, db->phy_addr, 0, db->chip_id);
+	phy_reg_reset = (phy_reg_reset | 0x8000);
+	phy_write(db->ioaddr, db->phy_addr, 0, phy_reg_reset, db->chip_id);
+	udelay(500);
+
+	/* Process Phyxcer Media Mode */
+	uli526x_set_phyxcer(db);
+
+	/* Media Mode Process */
+	if ( !(db->media_mode & ULI526X_AUTO) )
+		db->op_mode = db->media_mode; 	/* Force Mode */
+
+	/* Initiliaze Transmit/Receive decriptor and CR3/4 */
+	uli526x_descriptor_init(db, ioaddr);
+
+	/* Init CR6 to program M526X operation */
+	update_cr6(db->cr6_data, ioaddr);
+
+	/* Send setup frame */
+	send_filter_frame(dev, dev->mc_count);	/* M5261/M5263 */
+
+	/* Init CR7, interrupt active bit */
+	db->cr7_data = CR7_DEFAULT;
+	outl(db->cr7_data, ioaddr + DCR7);
+
+	/* Init CR15, Tx jabber and Rx watchdog timer */
+	outl(db->cr15_data, ioaddr + DCR15);
+
+	/* Enable ULI526X Tx/Rx function */
+	db->cr6_data |= CR6_RXSC | CR6_TXSC;
+	update_cr6(db->cr6_data, ioaddr);
+}
+
+
+/*
+ *	Hardware start transmission.
+ *	Send a packet to media from the upper layer.
+ */
+
+static int uli526x_start_xmit(struct sk_buff *skb, struct DEVICE *dev)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+	struct tx_desc *txptr;
+	unsigned long flags;
+
+	ULI526X_DBUG(0, "uli526x_start_xmit", 0);
+
+	/* Resource flag check */
+	netif_stop_queue(dev);
+
+	/* Too large packet check */
+	if (skb->len > MAX_PACKET_SIZE) {
+		printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len);
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	spin_lock_irqsave(&db->lock, flags);
+
+	/* No Tx resource check, it never happen nromally */
+	if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) {
+		spin_unlock_irqrestore(&db->lock, flags);
+		printk(KERN_ERR DRV_NAME ": No Tx resource %ld\n", db->tx_packet_cnt);
+		return 1;
+	}
+
+	/* Disable NIC interrupt */
+	outl(0, dev->base_addr + DCR7);
+
+	/* transmit this packet */
+	txptr = db->tx_insert_ptr;
+	memcpy(txptr->tx_buf_ptr, skb->data, skb->len);
+	txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
+
+	/* Point to next transmit free descriptor */
+	db->tx_insert_ptr = txptr->next_tx_desc;
+
+	/* Transmit Packet Process */
+	if ( (db->tx_packet_cnt < TX_DESC_CNT) ) {
+		txptr->tdes0 = cpu_to_le32(0x80000000);	/* Set owner bit */
+		db->tx_packet_cnt++;			/* Ready to send */
+		outl(0x1, dev->base_addr + DCR1);	/* Issue Tx polling */
+		dev->trans_start = jiffies;		/* saved time stamp */
+	}
+
+	/* Tx resource check */
+	if ( db->tx_packet_cnt < TX_FREE_DESC_CNT )
+		netif_wake_queue(dev);
+
+	/* Restore CR7 to enable interrupt */
+	spin_unlock_irqrestore(&db->lock, flags);
+	outl(db->cr7_data, dev->base_addr + DCR7);
+	
+	/* free this SKB */
+	dev_kfree_skb(skb);
+
+	return 0;
+}
+
+
+/*
+ *	Stop the interface.
+ *	The interface is stopped when it is brought.
+ */
+
+static int uli526x_stop(struct DEVICE *dev)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+	unsigned long ioaddr = dev->base_addr;
+
+	ULI526X_DBUG(0, "uli526x_stop", 0);
+
+	/* disable system */
+	netif_stop_queue(dev);
+
+	/* deleted timer */
+	del_timer_sync(&db->timer);
+
+	/* Reset & stop ULI526X board */
+	outl(ULI526X_RESET, ioaddr + DCR0);
+	udelay(5);
+	phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
+
+	/* free interrupt */
+	free_irq(dev->irq, dev);
+
+	/* free allocated rx buffer */
+	uli526x_free_rxbuffer(db);
+
+#if 0
+	/* show statistic counter */
+	printk(DRV_NAME ": FU:%lx EC:%lx LC:%lx NC:%lx LOC:%lx TXJT:%lx RESET:%lx RCR8:%lx FAL:%lx TT:%lx\n",
+		db->tx_fifo_underrun, db->tx_excessive_collision,
+		db->tx_late_collision, db->tx_no_carrier, db->tx_loss_carrier,
+		db->tx_jabber_timeout, db->reset_count, db->reset_cr8,
+		db->reset_fatal, db->reset_TXtimeout);
+#endif
+
+	return 0;
+}
+
+
+/*
+ *	M5261/M5263 insterrupt handler
+ *	receive the packet to upper layer, free the transmitted packet
+ */
+
+static irqreturn_t uli526x_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct DEVICE *dev = dev_id;
+	struct uli526x_board_info *db = netdev_priv(dev);
+	unsigned long ioaddr = dev->base_addr;
+	unsigned long flags;
+
+       //ULI526X_DBUG(0, "uli526x_interrupt()", 0);
+
+	if (!dev) {
+		ULI526X_DBUG(1, "uli526x_interrupt() without DEVICE arg", 0);
+		return IRQ_NONE;
+	}
+
+	//outl(0, ioaddr + DCR7);
+	spin_lock_irqsave(&db->lock, flags);
+	outl(0, ioaddr + DCR7);
+
+	/* Got ULI526X status */
+	db->cr5_data = inl(ioaddr + DCR5);
+	outl(db->cr5_data, ioaddr + DCR5);
+	if ( !(db->cr5_data & 0x180c1) ) {
+		spin_unlock_irqrestore(&db->lock, flags);
+		outl(db->cr7_data, ioaddr + DCR7);
+		return IRQ_HANDLED;
+	}
+
+	/* Disable all interrupt in CR7 to solve the interrupt edge problem */
+	//outl(0, ioaddr + DCR7);
+
+	/* Check system status */
+	if (db->cr5_data & 0x2000) {
+		/* system bus error happen */
+		ULI526X_DBUG(1, "System bus error happen. CR5=", db->cr5_data);
+		db->reset_fatal++;
+		db->wait_reset = 1;	/* Need to RESET */
+		spin_unlock_irqrestore(&db->lock, flags);
+		return IRQ_HANDLED;
+	}
+
+	 /* Received the coming packet */
+	if ( (db->cr5_data & 0x40) && db->rx_avail_cnt )
+		uli526x_rx_packet(dev, db);
+
+	/* reallocate rx descriptor buffer */
+	if (db->rx_avail_cnt<RX_DESC_CNT)
+		allocate_rx_buffer(db);
+
+	/* Free the transmitted descriptor */
+	if ( db->cr5_data & 0x01)
+		uli526x_free_tx_pkt(dev, db);
+
+	/* Restore CR7 to enable interrupt mask */
+	outl(db->cr7_data, ioaddr + DCR7);
+
+	spin_unlock_irqrestore(&db->lock, flags);
+	return IRQ_HANDLED;
+}
+
+
+/*
+ *	Free TX resource after TX complete
+ */
+
+static void uli526x_free_tx_pkt(struct DEVICE *dev, struct uli526x_board_info * db)
+{
+	struct tx_desc *txptr;
+//	unsigned long ioaddr = dev->base_addr;
+	u32 tdes0;
+
+	txptr = db->tx_remove_ptr;
+	while(db->tx_packet_cnt) {
+		tdes0 = le32_to_cpu(txptr->tdes0);
+		/* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
+		if (tdes0 & 0x80000000)
+			break;
+
+		/* A packet sent completed */
+		db->tx_packet_cnt--;
+		db->stats.tx_packets++;
+
+		/* Transmit statistic counter */
+		if ( tdes0 != 0x7fffffff ) {
+			/* printk(DRV_NAME ": tdes0=%x\n", tdes0); */
+			db->stats.collisions += (tdes0 >> 3) & 0xf;
+			db->stats.tx_bytes += le32_to_cpu(txptr->tdes1) & 0x7ff;
+			if (tdes0 & TDES0_ERR_MASK) {
+				db->stats.tx_errors++;
+				if (tdes0 & 0x0002) {	/* UnderRun */
+					db->tx_fifo_underrun++;
+					if ( !(db->cr6_data & CR6_SFT) ) {
+						db->cr6_data = db->cr6_data | CR6_SFT;
+						update_cr6(db->cr6_data, db->ioaddr);
+					}
+				}
+				if (tdes0 & 0x0100)
+					db->tx_excessive_collision++;
+				if (tdes0 & 0x0200)
+					db->tx_late_collision++;
+				if (tdes0 & 0x0400)
+					db->tx_no_carrier++;
+				if (tdes0 & 0x0800)
+					db->tx_loss_carrier++;
+				if (tdes0 & 0x4000)
+					db->tx_jabber_timeout++;
+			}
+		}
+
+    		txptr = txptr->next_tx_desc;
+	}/* End of while */
+
+	/* Update TX remove pointer to next */
+	db->tx_remove_ptr = txptr;
+
+	/* Resource available check */
+	if ( db->tx_packet_cnt < TX_WAKE_DESC_CNT )
+		netif_wake_queue(dev);	/* Active upper layer, send again */
+}
+
+
+/*
+ *	Receive the come packet and pass to upper layer
+ */
+
+static void uli526x_rx_packet(struct DEVICE *dev, struct uli526x_board_info * db)
+{
+	struct rx_desc *rxptr;
+	struct sk_buff *skb;
+	int rxlen;
+	u32 rdes0;
+	
+	rxptr = db->rx_ready_ptr;
+
+	while(db->rx_avail_cnt) {
+		rdes0 = le32_to_cpu(rxptr->rdes0);
+		if (rdes0 & 0x80000000)	/* packet owner check */
+		{
+			break;
+		}
+
+		db->rx_avail_cnt--;
+		db->interval_rx_cnt++;
+
+		pci_unmap_single(db->pdev, le32_to_cpu(rxptr->rdes2), RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
+		if ( (rdes0 & 0x300) != 0x300) {
+			/* A packet without First/Last flag */
+			/* reuse this SKB */
+			ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
+			uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
+		} else {
+			/* A packet with First/Last flag */
+			rxlen = ( (rdes0 >> 16) & 0x3fff) - 4;
+
+			/* error summary bit check */
+			if (rdes0 & 0x8000) {
+				/* This is a error packet */
+				//printk(DRV_NAME ": rdes0: %lx\n", rdes0);
+				db->stats.rx_errors++;
+				if (rdes0 & 1)
+					db->stats.rx_fifo_errors++;
+				if (rdes0 & 2)
+					db->stats.rx_crc_errors++;
+				if (rdes0 & 0x80)
+					db->stats.rx_length_errors++;
+			}
+
+			if ( !(rdes0 & 0x8000) ||
+				((db->cr6_data & CR6_PM) && (rxlen>6)) ) {
+				skb = rxptr->rx_skb_ptr;
+		
+				/* Good packet, send to upper layer */
+				/* Shorst packet used new SKB */
+				if ( (rxlen < RX_COPY_SIZE) &&
+					( (skb = dev_alloc_skb(rxlen + 2) )
+					!= NULL) ) {
+					/* size less than COPY_SIZE, allocate a rxlen SKB */
+					skb->dev = dev;
+					skb_reserve(skb, 2); /* 16byte align */
+					memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->tail, rxlen);
+					uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
+				} else {
+					skb->dev = dev;
+					skb_put(skb, rxlen);
+				}
+				skb->protocol = eth_type_trans(skb, dev);
+				netif_rx(skb);
+				dev->last_rx = jiffies;
+				db->stats.rx_packets++;
+				db->stats.rx_bytes += rxlen;
+				
+			} else {
+				/* Reuse SKB buffer when the packet is error */
+				ULI526X_DBUG(0, "Reuse SK buffer, rdes0", rdes0);
+				uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
+			}
+		}
+
+		rxptr = rxptr->next_rx_desc;
+	}
+
+	db->rx_ready_ptr = rxptr;
+}
+
+
+/*
+ *	Get statistics from driver.
+ */
+
+static struct net_device_stats * uli526x_get_stats(struct DEVICE *dev)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+
+	ULI526X_DBUG(0, "uli526x_get_stats", 0);
+	return &db->stats;
+}
+
+
+/*
+ * Set ULI526X multicast address
+ */
+
+static void uli526x_set_filter_mode(struct DEVICE * dev)
+{
+	struct uli526x_board_info *db = dev->priv;
+	unsigned long flags;
+
+	ULI526X_DBUG(0, "uli526x_set_filter_mode()", 0);
+	spin_lock_irqsave(&db->lock, flags);
+
+	if (dev->flags & IFF_PROMISC) {
+		ULI526X_DBUG(0, "Enable PROM Mode", 0);
+		db->cr6_data |= CR6_PM | CR6_PBF;
+		update_cr6(db->cr6_data, db->ioaddr);
+		spin_unlock_irqrestore(&db->lock, flags);
+		return;
+	}
+
+	if (dev->flags & IFF_ALLMULTI || dev->mc_count > ULI5261_MAX_MULTICAST) {
+		ULI526X_DBUG(0, "Pass all multicast address", dev->mc_count);
+		db->cr6_data &= ~(CR6_PM | CR6_PBF);
+		db->cr6_data |= CR6_PAM;
+		spin_unlock_irqrestore(&db->lock, flags);
+		return;
+	}
+
+	ULI526X_DBUG(0, "Set multicast address", dev->mc_count);
+	send_filter_frame(dev, dev->mc_count); 	/* M5261/M5263 */
+	spin_unlock_irqrestore(&db->lock, flags);
+}
+
+static void
+ULi_ethtool_gset(struct uli526x_board_info *db, struct ethtool_cmd *ecmd)
+{
+	//struct e1000_hw *hw = &adapter->hw;
+
+	{
+
+		ecmd->supported = (SUPPORTED_10baseT_Half |
+		                   SUPPORTED_10baseT_Full |
+		                   SUPPORTED_100baseT_Half |
+		                   SUPPORTED_100baseT_Full |
+		                   SUPPORTED_Autoneg |
+		                   SUPPORTED_MII);
+		
+		ecmd->advertising = (ADVERTISED_10baseT_Half |
+		                   ADVERTISED_10baseT_Full |
+		                   ADVERTISED_100baseT_Half |
+		                   ADVERTISED_100baseT_Full |
+		                   ADVERTISED_Autoneg |
+		                   ADVERTISED_MII);
+
+
+		ecmd->port = PORT_MII;
+		ecmd->phy_address = db->phy_addr;
+
+		ecmd->transceiver = XCVR_EXTERNAL;
+		
+
+	}
+
+	
+	ecmd->speed = 10;
+	ecmd->duplex = DUPLEX_HALF;
+	
+	if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD)
+	{
+		ecmd->speed = 100;               
+	}
+	if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD)
+	{
+		ecmd->duplex = DUPLEX_FULL;
+	}
+	if(db->link_failed)
+	{
+		ecmd->speed = -1;
+		ecmd->duplex = -1;	
+	}
+	
+	if (db->media_mode & ULI526X_AUTO)
+	{	
+		ecmd->autoneg = AUTONEG_ENABLE;
+	}
+	
+	
+}
+
+static void netdev_get_drvinfo(struct net_device *dev,
+			       struct ethtool_drvinfo *info)
+{
+	struct uli526x_board_info *np = netdev_priv(dev);
+
+	strcpy(info->driver, DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	if (np->pdev)
+		strcpy(info->bus_info, pci_name(np->pdev));
+	else
+		sprintf(info->bus_info, "EISA 0x%lx %d",
+			dev->base_addr, dev->irq);
+}
+
+static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) {
+	struct uli526x_board_info *np = netdev_priv(dev);
+	
+	ULi_ethtool_gset(np, cmd);
+	
+	return 0;
+}
+
+static u32 netdev_get_link(struct net_device *dev) {
+	struct uli526x_board_info *np = netdev_priv(dev);
+		
+	if(np->link_failed)
+		return 0;
+	else
+		return 1;
+}
+
+static void uli526x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+	wol->supported = WAKE_PHY | WAKE_MAGIC;
+	wol->wolopts = 0;
+}
+
+static struct ethtool_ops netdev_ethtool_ops = {
+	.get_drvinfo		= netdev_get_drvinfo,
+	.get_settings		= netdev_get_settings,
+	.get_link		= netdev_get_link,
+	.get_wol		= uli526x_get_wol,
+};
+
+/*
+ *	A periodic timer routine
+ *	Dynamic media sense, allocate Rx buffer...
+ */
+
+static void uli526x_timer(unsigned long data)
+{
+	u32 tmp_cr8;
+	unsigned char tmp_cr12=0;
+	struct DEVICE *dev = (struct DEVICE *) data;
+	struct uli526x_board_info *db = netdev_priv(dev);
+ 	unsigned long flags;
+	u8 TmpSpeed=10;
+	
+	//ULI526X_DBUG(0, "uli526x_timer()", 0);
+	spin_lock_irqsave(&db->lock, flags);
+
+	
+	/* Dynamic reset ULI526X : system error or transmit time-out */
+	tmp_cr8 = inl(db->ioaddr + DCR8);
+	if ( (db->interval_rx_cnt==0) && (tmp_cr8) ) {
+		db->reset_cr8++;
+		db->wait_reset = 1;
+	}
+	db->interval_rx_cnt = 0;
+
+	/* TX polling kick monitor */
+	if ( db->tx_packet_cnt &&
+	     time_after(jiffies, dev->trans_start + ULI526X_TX_KICK) ) {
+		outl(0x1, dev->base_addr + DCR1);   // Tx polling again 
+
+		// TX Timeout 
+		if ( time_after(jiffies, dev->trans_start + ULI526X_TX_TIMEOUT) ) {
+			db->reset_TXtimeout++;
+			db->wait_reset = 1;
+			printk( "%s: Tx timeout - resetting\n",
+			       dev->name);
+		}
+	}
+
+	if (db->wait_reset) {
+		ULI526X_DBUG(0, "Dynamic Reset device", db->tx_packet_cnt);
+		db->reset_count++;
+		uli526x_dynamic_reset(dev);
+		db->timer.expires = ULI526X_TIMER_WUT;
+		add_timer(&db->timer);
+		spin_unlock_irqrestore(&db->lock, flags);
+		return;
+	}
+
+	/* Link status check, Dynamic media type change */
+	if((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)!=0)
+		tmp_cr12 = 3;
+
+	if ( !(tmp_cr12 & 0x3) && !db->link_failed ) {
+		/* Link Failed */
+		ULI526X_DBUG(0, "Link Failed", tmp_cr12);
+		netif_carrier_off(dev);
+		printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name);
+		db->link_failed = 1;
+
+		/* For Force 10/100M Half/Full mode: Enable Auto-Nego mode */
+		/* AUTO don't need */
+		if ( !(db->media_mode & 0x8) )
+			phy_write(db->ioaddr, db->phy_addr, 0, 0x1000, db->chip_id);
+
+		/* AUTO mode, if INT phyxcer link failed, select EXT device */
+		if (db->media_mode & ULI526X_AUTO) {
+			db->cr6_data&=~0x00000200;	/* bit9=0, HD mode */
+			update_cr6(db->cr6_data, db->ioaddr);
+		}
+	} else
+		if ((tmp_cr12 & 0x3) && db->link_failed) {
+			ULI526X_DBUG(0, "Link link OK", tmp_cr12);
+			db->link_failed = 0;
+
+			/* Auto Sense Speed */
+			if ( (db->media_mode & ULI526X_AUTO) &&
+				uli526x_sense_speed(db) )
+				db->link_failed = 1;
+			uli526x_process_mode(db);
+			
+			if(db->link_failed==0)
+			{
+				if(db->op_mode==ULI526X_100MHF || db->op_mode==ULI526X_100MFD)
+				{
+					TmpSpeed = 100;
+				}
+				if(db->op_mode==ULI526X_10MFD || db->op_mode==ULI526X_100MFD)
+				{
+					printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Full duplex\n",dev->name,TmpSpeed);
+				}
+				else
+				{
+					printk(KERN_INFO "uli526x: %s NIC Link is Up %d Mbps Half duplex\n",dev->name,TmpSpeed);
+				}
+				netif_carrier_on(dev);
+			}
+			/* SHOW_MEDIA_TYPE(db->op_mode); */
+		}
+		else if(!(tmp_cr12 & 0x3) && db->link_failed)
+		{
+			if(db->init==1)
+			{
+				printk(KERN_INFO "uli526x: %s NIC Link is Down\n",dev->name);
+				netif_carrier_off(dev);
+			}
+		}
+		db->init=0;
+
+	/* Timer active again */
+	db->timer.expires = ULI526X_TIMER_WUT;
+	add_timer(&db->timer);
+	spin_unlock_irqrestore(&db->lock, flags);
+}
+
+
+/*
+ *	Dynamic reset the ULI526X board
+ *	Stop ULI526X board
+ *	Free Tx/Rx allocated memory
+ *	Reset ULI526X board
+ *	Re-initilize ULI526X board
+ */
+
+static void uli526x_dynamic_reset(struct DEVICE *dev)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+
+	ULI526X_DBUG(0, "uli526x_dynamic_reset()", 0);
+
+	/* Sopt MAC controller */
+	db->cr6_data &= ~(CR6_RXSC | CR6_TXSC);	/* Disable Tx/Rx */
+	update_cr6(db->cr6_data, dev->base_addr);
+	outl(0, dev->base_addr + DCR7);		/* Disable Interrupt */
+	outl(inl(dev->base_addr + DCR5), dev->base_addr + DCR5);
+
+	/* Disable upper layer interface */
+	netif_stop_queue(dev);
+
+	/* Free Rx Allocate buffer */
+	uli526x_free_rxbuffer(db);
+
+	/* system variable init */
+	db->tx_packet_cnt = 0;
+	db->rx_avail_cnt = 0;
+	db->link_failed = 1;
+	db->init=1;
+	db->wait_reset = 0;
+
+	/* Re-initilize ULI526X board */
+	uli526x_init(dev);
+
+	/* Restart upper layer interface */
+	netif_wake_queue(dev);
+}
+
+
+/*
+ *	free all allocated rx buffer
+ */
+
+static void uli526x_free_rxbuffer(struct uli526x_board_info * db)
+{
+	ULI526X_DBUG(0, "uli526x_free_rxbuffer()", 0);
+
+	/* free allocated rx buffer */
+	while (db->rx_avail_cnt) {
+		dev_kfree_skb(db->rx_ready_ptr->rx_skb_ptr);
+		db->rx_ready_ptr = db->rx_ready_ptr->next_rx_desc;
+		db->rx_avail_cnt--;
+	}
+}
+
+
+/*
+ *	Reuse the SK buffer
+ */
+
+static void uli526x_reuse_skb(struct uli526x_board_info *db, struct sk_buff * skb)
+{
+	struct rx_desc *rxptr = db->rx_insert_ptr;
+
+	if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
+		rxptr->rx_skb_ptr = skb;
+		rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+		wmb();
+		rxptr->rdes0 = cpu_to_le32(0x80000000);
+		db->rx_avail_cnt++;
+		db->rx_insert_ptr = rxptr->next_rx_desc;
+	} else
+		ULI526X_DBUG(0, "SK Buffer reuse method error", db->rx_avail_cnt);
+}
+
+
+/*
+ *	Initialize transmit/Receive descriptor
+ *	Using Chain structure, and allocate Tx/Rx buffer
+ */
+
+static void uli526x_descriptor_init(struct uli526x_board_info *db, unsigned long ioaddr)
+{
+	struct tx_desc *tmp_tx;
+	struct rx_desc *tmp_rx;
+	unsigned char *tmp_buf;
+	dma_addr_t tmp_tx_dma, tmp_rx_dma;
+	dma_addr_t tmp_buf_dma;
+	int i;
+
+	ULI526X_DBUG(0, "uli526x_descriptor_init()", 0);
+
+	/* tx descriptor start pointer */
+	db->tx_insert_ptr = db->first_tx_desc;
+	db->tx_remove_ptr = db->first_tx_desc;
+	outl(db->first_tx_desc_dma, ioaddr + DCR4);     /* TX DESC address */
+
+	/* rx descriptor start pointer */
+	db->first_rx_desc = (void *)db->first_tx_desc + sizeof(struct tx_desc) * TX_DESC_CNT;
+	db->first_rx_desc_dma =  db->first_tx_desc_dma + sizeof(struct tx_desc) * TX_DESC_CNT;
+	db->rx_insert_ptr = db->first_rx_desc;
+	db->rx_ready_ptr = db->first_rx_desc;
+	outl(db->first_rx_desc_dma, ioaddr + DCR3);	/* RX DESC address */
+
+	/* Init Transmit chain */
+	tmp_buf = db->buf_pool_start;
+	tmp_buf_dma = db->buf_pool_dma_start;
+	tmp_tx_dma = db->first_tx_desc_dma;
+	for (tmp_tx = db->first_tx_desc, i = 0; i < TX_DESC_CNT; i++, tmp_tx++) {
+		tmp_tx->tx_buf_ptr = tmp_buf;
+		tmp_tx->tdes0 = cpu_to_le32(0);
+		tmp_tx->tdes1 = cpu_to_le32(0x81000000);	/* IC, chain */
+		tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
+		tmp_tx_dma += sizeof(struct tx_desc);
+		tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
+		tmp_tx->next_tx_desc = tmp_tx + 1;
+		tmp_buf = tmp_buf + TX_BUF_ALLOC;
+		tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
+	}
+	(--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
+	tmp_tx->next_tx_desc = db->first_tx_desc;
+
+	 /* Init Receive descriptor chain */
+	tmp_rx_dma=db->first_rx_desc_dma;
+	for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT; i++, tmp_rx++) {
+		tmp_rx->rdes0 = cpu_to_le32(0);
+		tmp_rx->rdes1 = cpu_to_le32(0x01000600);
+		tmp_rx_dma += sizeof(struct rx_desc);
+		tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
+		tmp_rx->next_rx_desc = tmp_rx + 1;
+	}
+	(--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
+	tmp_rx->next_rx_desc = db->first_rx_desc;
+
+	/* pre-allocate Rx buffer */
+	allocate_rx_buffer(db);
+}
+
+
+/*
+ *	Update CR6 value
+ *	Firstly stop ULI526X , then written value and start
+ */
+
+static void update_cr6(u32 cr6_data, unsigned long ioaddr)
+{
+
+	outl(cr6_data, ioaddr + DCR6);
+	udelay(5);
+}
+
+
+/*
+ *	Send a setup frame for M5261/M5263
+ *	This setup frame initilize ULI526X address filter mode
+ */
+
+static void send_filter_frame(struct DEVICE *dev, int mc_cnt)
+{
+	struct uli526x_board_info *db = netdev_priv(dev);
+	struct dev_mc_list *mcptr;
+	struct tx_desc *txptr;
+	u16 * addrptr;
+	u32 * suptr;
+	int i;
+
+	ULI526X_DBUG(0, "send_filter_frame()", 0);
+
+	txptr = db->tx_insert_ptr;
+	suptr = (u32 *) txptr->tx_buf_ptr;
+
+	/* Node address */
+	addrptr = (u16 *) dev->dev_addr;
+	*suptr++ = addrptr[0];
+	*suptr++ = addrptr[1];
+	*suptr++ = addrptr[2];
+
+	/* broadcast address */
+	*suptr++ = 0xffff;
+	*suptr++ = 0xffff;
+	*suptr++ = 0xffff;
+
+	/* fit the multicast address */
+	for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) {
+		addrptr = (u16 *) mcptr->dmi_addr;
+		*suptr++ = addrptr[0];
+		*suptr++ = addrptr[1];
+		*suptr++ = addrptr[2];
+	}
+
+	for (; i<14; i++) {
+		*suptr++ = 0xffff;
+		*suptr++ = 0xffff;
+		*suptr++ = 0xffff;
+	}
+
+	/* prepare the setup frame */
+	db->tx_insert_ptr = txptr->next_tx_desc;
+	txptr->tdes1 = cpu_to_le32(0x890000c0);
+
+	/* Resource Check and Send the setup packet */
+	if (db->tx_packet_cnt < TX_DESC_CNT) {
+		/* Resource Empty */
+		db->tx_packet_cnt++;
+		txptr->tdes0 = cpu_to_le32(0x80000000);
+		update_cr6(db->cr6_data | 0x2000, dev->base_addr);
+		outl(0x1, dev->base_addr + DCR1);	/* Issue Tx polling */
+		update_cr6(db->cr6_data, dev->base_addr);
+		dev->trans_start = jiffies;
+	} else
+		printk(KERN_ERR DRV_NAME ": No Tx resource - Send_filter_frame!\n");
+}
+
+
+/*
+ *	Allocate rx buffer,
+ *	As possible as allocate maxiumn Rx buffer
+ */
+
+static void allocate_rx_buffer(struct uli526x_board_info *db)
+{
+	struct rx_desc *rxptr;
+	struct sk_buff *skb;
+
+	rxptr = db->rx_insert_ptr;
+
+	while(db->rx_avail_cnt < RX_DESC_CNT) {
+		if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
+			break;
+		rxptr->rx_skb_ptr = skb; /* FIXME (?) */
+		rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+		wmb();
+		rxptr->rdes0 = cpu_to_le32(0x80000000);
+		rxptr = rxptr->next_rx_desc;
+		db->rx_avail_cnt++;
+	}
+
+	db->rx_insert_ptr = rxptr;
+}
+
+
+/*
+ *	Read one word data from the serial ROM
+ */
+
+static u16 read_srom_word(long ioaddr, int offset)
+{
+	int i;
+	u16 srom_data = 0;
+	long cr9_ioaddr = ioaddr + DCR9;
+
+	outl(CR9_SROM_READ, cr9_ioaddr);
+	outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+
+	/* Send the Read Command 110b */
+	SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
+	SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
+	SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
+
+	/* Send the offset */
+	for (i = 5; i >= 0; i--) {
+		srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
+		SROM_CLK_WRITE(srom_data, cr9_ioaddr);
+	}
+
+	outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+
+	for (i = 16; i > 0; i--) {
+		outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
+		udelay(5);
+		srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT) ? 1 : 0);
+		outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
+		udelay(5);
+	}
+
+	outl(CR9_SROM_READ, cr9_ioaddr);
+	return srom_data;
+}
+
+
+/*
+ *	Auto sense the media mode
+ */
+
+static u8 uli526x_sense_speed(struct uli526x_board_info * db)
+{
+	u8 ErrFlag = 0;
+	u16 phy_mode;
+
+	phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
+	phy_mode = phy_read(db->ioaddr, db->phy_addr, 1, db->chip_id);
+
+	if ( (phy_mode & 0x24) == 0x24 ) {
+		
+		phy_mode = ((phy_read(db->ioaddr, db->phy_addr, 5, db->chip_id) & 0x01e0)<<7);
+		if(phy_mode&0x8000)
+			phy_mode = 0x8000;
+		else if(phy_mode&0x4000)
+			phy_mode = 0x4000;
+		else if(phy_mode&0x2000)
+			phy_mode = 0x2000;
+		else
+			phy_mode = 0x1000;
+		
+		/* printk(DRV_NAME ": Phy_mode %x ",phy_mode); */
+		switch (phy_mode) {
+		case 0x1000: db->op_mode = ULI526X_10MHF; break;
+		case 0x2000: db->op_mode = ULI526X_10MFD; break;
+		case 0x4000: db->op_mode = ULI526X_100MHF; break;
+		case 0x8000: db->op_mode = ULI526X_100MFD; break;
+		default: db->op_mode = ULI526X_10MHF; ErrFlag = 1; break;
+		}
+	} else {
+		db->op_mode = ULI526X_10MHF;
+		ULI526X_DBUG(0, "Link Failed :", phy_mode);
+		ErrFlag = 1;
+	}
+
+	return ErrFlag;
+}
+
+
+/*
+ *	Set 10/100 phyxcer capability
+ *	AUTO mode : phyxcer register4 is NIC capability
+ *	Force mode: phyxcer register4 is the force media
+ */
+
+static void uli526x_set_phyxcer(struct uli526x_board_info *db)
+{
+	u16 phy_reg;
+	
+	/* Phyxcer capability setting */
+	phy_reg = phy_read(db->ioaddr, db->phy_addr, 4, db->chip_id) & ~0x01e0;
+
+	if (db->media_mode & ULI526X_AUTO) {
+		/* AUTO Mode */
+		phy_reg |= db->PHY_reg4;
+	} else {
+		/* Force Mode */
+		switch(db->media_mode) {
+		case ULI526X_10MHF: phy_reg |= 0x20; break;
+		case ULI526X_10MFD: phy_reg |= 0x40; break;
+		case ULI526X_100MHF: phy_reg |= 0x80; break;
+		case ULI526X_100MFD: phy_reg |= 0x100; break;
+		}
+		
+	}
+
+  	/* Write new capability to Phyxcer Reg4 */
+	if ( !(phy_reg & 0x01e0)) {
+		phy_reg|=db->PHY_reg4;
+		db->media_mode|=ULI526X_AUTO;
+	}
+	phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
+
+ 	/* Restart Auto-Negotiation */
+	phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
+	udelay(50);
+}
+
+
+/*
+ *	Process op-mode
+ 	AUTO mode : PHY controller in Auto-negotiation Mode
+ *	Force mode: PHY controller in force mode with HUB
+ *			N-way force capability with SWITCH
+ */
+
+static void uli526x_process_mode(struct uli526x_board_info *db)
+{
+	u16 phy_reg;
+
+	/* Full Duplex Mode Check */
+	if (db->op_mode & 0x4)
+		db->cr6_data |= CR6_FDM;	/* Set Full Duplex Bit */
+	else
+		db->cr6_data &= ~CR6_FDM;	/* Clear Full Duplex Bit */
+
+	update_cr6(db->cr6_data, db->ioaddr);
+
+	/* 10/100M phyxcer force mode need */
+	if ( !(db->media_mode & 0x8)) {
+		/* Forece Mode */
+		phy_reg = phy_read(db->ioaddr, db->phy_addr, 6, db->chip_id);
+		if ( !(phy_reg & 0x1) ) {
+			/* parter without N-Way capability */
+			phy_reg = 0x0;
+			switch(db->op_mode) {
+			case ULI526X_10MHF: phy_reg = 0x0; break;
+			case ULI526X_10MFD: phy_reg = 0x100; break;
+			case ULI526X_100MHF: phy_reg = 0x2000; break;
+			case ULI526X_100MFD: phy_reg = 0x2100; break;
+			}
+			phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id);
+       			phy_write(db->ioaddr, db->phy_addr, 0, phy_reg, db->chip_id);
+		}
+	}
+}
+
+
+/*
+ *	Write a word to Phy register
+ */
+
+static void phy_write(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data, u32 chip_id)
+{
+	u16 i;
+	unsigned long ioaddr;
+
+	if(chip_id == PCI_ULI5263_ID)
+	{
+		phy_writeby_cr10(iobase, phy_addr, offset, phy_data);
+		return;
+	}
+	/* M5261/M5263 Chip */
+	ioaddr = iobase + DCR9;
+
+	/* Send 33 synchronization clock to Phy controller */
+	for (i = 0; i < 35; i++)
+		phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+
+	/* Send start command(01) to Phy */
+	phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
+	phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+
+	/* Send write command(01) to Phy */
+	phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
+	phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+
+	/* Send Phy address */
+	for (i = 0x10; i > 0; i = i >> 1)
+		phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
+
+	/* Send register address */
+	for (i = 0x10; i > 0; i = i >> 1)
+		phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
+
+	/* written trasnition */
+	phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+	phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
+
+	/* Write a word data to PHY controller */
+	for ( i = 0x8000; i > 0; i >>= 1)
+		phy_write_1bit(ioaddr, phy_data & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
+	
+}
+
+
+/*
+ *	Read a word data from phy register
+ */
+
+static u16 phy_read(unsigned long iobase, u8 phy_addr, u8 offset, u32 chip_id)
+{
+	int i;
+	u16 phy_data;
+	unsigned long ioaddr;
+
+	if(chip_id == PCI_ULI5263_ID)
+		return phy_readby_cr10(iobase, phy_addr, offset);
+	/* M5261/M5263 Chip */
+	ioaddr = iobase + DCR9;
+	
+	/* Send 33 synchronization clock to Phy controller */
+	for (i = 0; i < 35; i++)
+		phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+
+	/* Send start command(01) to Phy */
+	phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
+	phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+
+	/* Send read command(10) to Phy */
+	phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
+	phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
+
+	/* Send Phy address */
+	for (i = 0x10; i > 0; i = i >> 1)
+		phy_write_1bit(ioaddr, phy_addr & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
+
+	/* Send register address */
+	for (i = 0x10; i > 0; i = i >> 1)
+		phy_write_1bit(ioaddr, offset & i ? PHY_DATA_1 : PHY_DATA_0, chip_id);
+
+	/* Skip transition state */
+	phy_read_1bit(ioaddr, chip_id);
+
+	/* read 16bit data */
+	for (phy_data = 0, i = 0; i < 16; i++) {
+		phy_data <<= 1;
+		phy_data |= phy_read_1bit(ioaddr, chip_id);
+	}
+
+	return phy_data;
+}
+
+static u16 phy_readby_cr10(unsigned long iobase, u8 phy_addr, u8 offset)
+{
+	unsigned long ioaddr,cr10_value;
+	
+	ioaddr = iobase + DCR10;
+	cr10_value = phy_addr;
+	cr10_value = (cr10_value<<5) + offset;
+	cr10_value = (cr10_value<<16) + 0x08000000;
+	outl(cr10_value,ioaddr);
+	udelay(1);
+	while(1)
+	{
+		cr10_value = inl(ioaddr);
+		if(cr10_value&0x10000000)
+			break;
+	}
+	return (cr10_value&0x0ffff);
+}
+
+static void phy_writeby_cr10(unsigned long iobase, u8 phy_addr, u8 offset, u16 phy_data)
+{
+	unsigned long ioaddr,cr10_value;
+	
+	ioaddr = iobase + DCR10;
+	cr10_value = phy_addr;
+	cr10_value = (cr10_value<<5) + offset;
+	cr10_value = (cr10_value<<16) + 0x04000000 + phy_data;
+	outl(cr10_value,ioaddr);
+	udelay(1);
+}
+/*
+ *	Write one bit data to Phy Controller
+ */
+
+static void phy_write_1bit(unsigned long ioaddr, u32 phy_data, u32 chip_id)
+{
+	outl(phy_data , ioaddr);			/* MII Clock Low */
+	udelay(1);
+	outl(phy_data  | MDCLKH, ioaddr);	/* MII Clock High */
+	udelay(1);
+	outl(phy_data , ioaddr);			/* MII Clock Low */
+	udelay(1);
+}
+
+
+/*
+ *	Read one bit phy data from PHY controller
+ */
+
+static u16 phy_read_1bit(unsigned long ioaddr, u32 chip_id)
+{
+	u16 phy_data;
+	
+	outl(0x50000 , ioaddr);
+	udelay(1);
+	phy_data = ( inl(ioaddr) >> 19 ) & 0x1;
+	outl(0x40000 , ioaddr);
+	udelay(1);
+
+	return phy_data;
+}
+
+
+static struct pci_device_id uli526x_pci_tbl[] = {
+	{ 0x10B9, 0x5261, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5261_ID },
+	{ 0x10B9, 0x5263, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PCI_ULI5263_ID },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, uli526x_pci_tbl);
+
+
+static struct pci_driver uli526x_driver = {
+	.name		= "uli526x",
+	.id_table	= uli526x_pci_tbl,
+	.probe		= uli526x_init_one,
+	.remove		= __devexit_p(uli526x_remove_one),
+};
+
+MODULE_AUTHOR("Peer Chen, peer.chen@uli.com.tw");
+MODULE_DESCRIPTION("ULi M5261/M5263 fast ethernet driver");
+MODULE_LICENSE("GPL");
+
+MODULE_PARM(debug, "i");
+MODULE_PARM(mode, "i");
+MODULE_PARM(cr6set, "i");
+MODULE_PARM_DESC(debug, "ULi M5261/M5263 enable debugging (0-1)");
+MODULE_PARM_DESC(mode, "ULi M5261/M5263: Bit 0: 10/100Mbps, bit 2: duplex, bit 8: HomePNA");
+
+/*	Description:
+ *	when user used insmod to add module, system invoked init_module()
+ *	to initilize and register.
+ */
+
+static int __init uli526x_init_module(void)
+{
+	int rc;
+
+	printk(version);
+	printed_version = 1;
+
+	ULI526X_DBUG(0, "init_module() ", debug);
+
+	if (debug)
+		uli526x_debug = debug;	/* set debug flag */
+	if (cr6set)
+		uli526x_cr6_user_set = cr6set;
+
+ 	switch(mode) {
+   	case ULI526X_10MHF:
+	case ULI526X_100MHF:
+	case ULI526X_10MFD:
+	case ULI526X_100MFD:
+		uli526x_media_mode = mode;
+		break;
+	default:uli526x_media_mode = ULI526X_AUTO;
+		break;
+	}
+
+	rc = pci_module_init(&uli526x_driver);
+	if (rc < 0)
+		return rc;
+
+	return 0;
+}
+
+
+/*
+ *	Description:
+ *	when user used rmmod to delete module, system invoked clean_module()
+ *	to un-register all registered services.
+ */
+
+static void __exit uli526x_cleanup_module(void)
+{
+	ULI526X_DBUG(0, "uli526x_clean_module() ", debug);
+	pci_unregister_driver(&uli526x_driver);
+}
+
+module_init(uli526x_init_module);
+module_exit(uli526x_cleanup_module);