/*
* SuperH Ethernet device driver
*
* Copyright (C) 2006-2008 Nobuhiro Iwamatsu
* Copyright (C) 2008 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/mdio-bitbang.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <linux/cache.h>
#include <linux/io.h>
#include "sh_eth.h"
/* CPU <-> EDMAC endian convert */
static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x)
{
switch (mdp->edmac_endian) {
case EDMAC_LITTLE_ENDIAN:
return cpu_to_le32(x);
case EDMAC_BIG_ENDIAN:
return cpu_to_be32(x);
}
return x;
}
static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x)
{
switch (mdp->edmac_endian) {
case EDMAC_LITTLE_ENDIAN:
return le32_to_cpu(x);
case EDMAC_BIG_ENDIAN:
return be32_to_cpu(x);
}
return x;
}
/*
* Program the hardware MAC address from dev->dev_addr.
*/
static void update_mac_address(struct net_device *ndev)
{
u32 ioaddr = ndev->base_addr;
ctrl_outl((ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) |
(ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]),
ioaddr + MAHR);
ctrl_outl((ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]),
ioaddr + MALR);
}
/*
* Get MAC address from SuperH MAC address register
*
* SuperH's Ethernet device doesn't have 'ROM' to MAC address.
* This driver get MAC address that use by bootloader(U-boot or sh-ipl+g).
* When you want use this device, you must set MAC address in bootloader.
*
*/
static void read_mac_address(struct net_device *ndev)
{
u32 ioaddr = ndev->base_addr;
ndev->dev_addr[0] = (ctrl_inl(ioaddr + MAHR) >> 24);
ndev->dev_