linux/drivers/net/fs_enet/mii-fec.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

241 lines
5.4 KiB
C

/*
* Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
*
* Copyright (c) 2003 Intracom S.A.
* by Pantelis Antoniou <panto@intracom.gr>
*
* 2005 (c) MontaVista Software, Inc.
* Vitaly Bordug <vbordug@ru.mvista.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.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/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include "fs_enet.h"
#include "fec.h"
/* Make MII read/write commands for the FEC.
*/
#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18))
#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
#define mk_mii_end 0
#define FEC_MII_LOOPS 10000
static int match_has_phy (struct device *dev, void* data)
{
struct platform_device* pdev = container_of(dev, struct platform_device, dev);
struct fs_platform_info* fpi;
if(strcmp(pdev->name, (char*)data))
{
return 0;
}
fpi = pdev->dev.platform_data;
if((fpi)&&(fpi->has_phy))
return 1;
return 0;
}
static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info *fmpi)
{
struct resource *r;
fec_t *fecp;
char* name = "fsl-cpm-fec";
/* we need fec in order to be useful */
struct platform_device *fec_pdev =
container_of(bus_find_device(&platform_bus_type, NULL, name, match_has_phy),
struct platform_device, dev);
if(fec_pdev == NULL) {
printk(KERN_ERR"Unable to find PHY for %s", name);
return -ENODEV;
}
r = platform_get_resource_byname(fec_pdev, IORESOURCE_MEM, "regs");
fec->fecp = fecp = (fec_t*)ioremap(r->start,sizeof(fec_t));
fec->mii_speed = fmpi->mii_speed;
setbits32(&fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
setbits32(&fecp->fec_ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
out_be32(&fecp->fec_ievent, FEC_ENET_MII);
out_be32(&fecp->fec_mii_speed, fec->mii_speed);
return 0;
}
static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
{
struct fec_info* fec = bus->priv;
fec_t *fecp = fec->fecp;
int i, ret = -1;
if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
BUG();
/* Add PHY address to register command. */
out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_read(location));
for (i = 0; i < FEC_MII_LOOPS; i++)
if ((in_be32(&fecp->fec_ievent) & FEC_ENET_MII) != 0)
break;
if (i < FEC_MII_LOOPS) {
out_be32(&fecp->fec_ievent, FEC_ENET_MII);
ret = in_be32(&fecp->fec_mii_data) & 0xffff;
}
return ret;
}
static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val)
{
struct fec_info* fec = bus->priv;
fec_t *fecp = fec->fecp;
int i;
/* this must never happen */
if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
BUG();
/* Add PHY address to register command. */
out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_write(location, val));
for (i = 0; i < FEC_MII_LOOPS; i++)
if ((in_be32(&fecp->fec_ievent) & FEC_ENET_MII) != 0)
break;
if (i < FEC_MII_LOOPS)
out_be32(&fecp->fec_ievent, FEC_ENET_MII);
return 0;
}
static int fs_enet_fec_mii_reset(struct mii_bus *bus)
{
/* nothing here - for now */
return 0;
}
static int __devinit fs_enet_fec_mdio_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct fs_mii_fec_platform_info *pdata;
struct mii_bus *new_bus;
struct fec_info *fec;
int err = 0;
if (NULL == dev)
return -EINVAL;
new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
if (NULL == new_bus)
return -ENOMEM;
fec = kzalloc(sizeof(struct fec_info), GFP_KERNEL);
if (NULL == fec)
return -ENOMEM;
new_bus->name = "FEC MII Bus",
new_bus->read = &fs_enet_fec_mii_read,
new_bus->write = &fs_enet_fec_mii_write,
new_bus->reset = &fs_enet_fec_mii_reset,
new_bus->id = pdev->id;
pdata = (struct fs_mii_fec_platform_info *)pdev->dev.platform_data;
if (NULL == pdata) {
printk(KERN_ERR "fs_enet FEC mdio %d: Missing platform data!\n", pdev->id);
return -ENODEV;
}
/*set up workspace*/
fs_mii_fec_init(fec, pdata);
new_bus->priv = fec;
new_bus->irq = pdata->irq;
new_bus->dev = dev;
dev_set_drvdata(dev, new_bus);
err = mdiobus_register(new_bus);
if (0 != err) {
printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
new_bus->name);
goto bus_register_fail;
}
return 0;
bus_register_fail:
kfree(new_bus);
return err;
}
static int fs_enet_fec_mdio_remove(struct device *dev)
{
struct mii_bus *bus = dev_get_drvdata(dev);
mdiobus_unregister(bus);
dev_set_drvdata(dev, NULL);
kfree(bus->priv);
bus->priv = NULL;
kfree(bus);
return 0;
}
static struct device_driver fs_enet_fec_mdio_driver = {
.name = "fsl-cpm-fec-mdio",
.bus = &platform_bus_type,
.probe = fs_enet_fec_mdio_probe,
.remove = fs_enet_fec_mdio_remove,
};
int fs_enet_mdio_fec_init(void)
{
return driver_register(&fs_enet_fec_mdio_driver);
}
void fs_enet_mdio_fec_exit(void)
{
driver_unregister(&fs_enet_fec_mdio_driver);
}