/*
* Xilinx Axi Ethernet device driver
*
* Copyright (c) 2008 Nissin Systems Co., Ltd., Yoshio Kashiwagi
* Copyright (c) 2005-2008 DLA Systems, David H. Lynch Jr. <dhlii@dlasys.net>
* Copyright (c) 2008-2009 Secret Lab Technologies Ltd.
* Copyright (c) 2010 - 2011 Michal Simek <monstr@monstr.eu>
* Copyright (c) 2010 - 2011 PetaLogix
* Copyright (c) 2010 - 2012 Xilinx, Inc. All rights reserved.
*
* This is a driver for the Xilinx Axi Ethernet which is used in the Virtex6
* and Spartan6.
*
* TODO:
* - Add Axi Fifo support.
* - Factor out Axi DMA code into separate driver.
* - Test and fix basic multicast filtering.
* - Add support for extended multicast filtering.
* - Test basic VLAN support.
* - Add support for extended VLAN support.
*/
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/of_mdio.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/phy.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include "xilinx_axienet.h"
/* Descriptors defines for Tx and Rx DMA - 2^n for the best performance */
#define TX_BD_NUM 64
#define RX_BD_NUM 128
/* Must be shorter than length of ethtool_drvinfo.driver field to fit */
#define DRIVER_NAME "xaxienet"
#define DRIVER_DESCRIPTION "Xilinx Axi Ethernet driver"
#define DRIVER_VERSION "1.00a"
#define AXIENET_REGS_N 32
/* Match table for of_platform binding */
static struct of_device_id axienet_of_match[] = {
{ .compatible = "xlnx,axi-ethernet-1.00.a", },
{ .compatible = "xlnx,axi-ethernet-1.01.a", },
{ .compatible = "xlnx,axi-ethernet-2.01.a", },
{},
};
MODULE_DEVICE_TABLE(of, axienet_of_match);
/* Option table for setting up Axi Ethernet hardware options */
static struct axienet_option axienet_options[] = {
/* Turn on jumbo packet support for both Rx and Tx */
{
.opt = XAE_OPTION_JUMBO,
.reg = XAE_TC_OFFSET,
.m_or = XAE_TC_JUM_MASK,
}, {
.opt = XAE_OPTION_JUMBO,
.reg = XAE_RCW1_OFFSET,
.m_or = XAE_RCW1_JUM_MASK,
}, { /* Turn on VLAN packet support for both Rx and Tx */
.opt = XAE_OPTION_VLAN,
.reg = XAE_TC_OFFSET,
.m_or = XAE_TC_VLAN_MASK,
}, {
.opt = XAE_OPTION_VLAN,
.reg = XAE_RCW1_OFFSET,
.m_or = XAE_RCW1_VLAN_MASK,
}, { /* Turn on FCS stripping on receive packets */
.opt = XAE_OPTION_
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