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/*
* SPDX-License-Identifier: GPL-2.0 IBM-pibs
*/
/*-----------------------------------------------------------------------------+
|
| File Name: miiphy.c
|
| Function: This module has utilities for accessing the MII PHY through
| the EMAC3 macro.
|
| Author: Mark Wisner
|
| Change Activity-
|
| Date Description of Change BY
| --------- --------------------- ---
| 05-May-99 Created MKW
| 01-Jul-99 Changed clock setting of sta_reg from 66MHz to 50MHz to
| better match OPB speed. Also modified delay times. JWB
| 29-Jul-99 Added Full duplex support MKW
| 24-Aug-99 Removed printf from dp83843_duplex() JWB
| 19-Jul-00 Ported to esd cpci405 sr
| 23-Dec-03 Ported from miiphy.c to 440GX Travis Sawyer TBS
| <travis.sawyer@sandburst.com>
|
+-----------------------------------------------------------------------------*/
#include <common.h>
#include <miiphy.h>
#include "IxOsal.h"
#include "IxEthAcc.h"
#include "IxEthAcc_p.h"
#include "IxEthAccMac_p.h"
#include "IxEthAccMii_p.h"
/***********************************************************/
/* Dump out to the screen PHY regs */
/***********************************************************/
void miiphy_dump (char *devname, unsigned char addr)
{
unsigned long i;
unsigned short data;
for (i = 0; i < 0x1A; i++) {
if (miiphy_read (devname, addr, i, &data)) {
printf ("read error for reg %lx\n", i);
return;
}
printf ("Phy reg %lx ==> %4x\n", i, data);
/* jump to the next set of regs */
if (i == 0x07)
i = 0x0f;
} /* end for loop */
} /* end dump */
/***********************************************************/
/* (Re)start autonegotiation */
/***********************************************************/
int phy_setup_aneg (char *devname, unsigned char addr)
{
unsigned short ctl, adv;
/* Setup standard advertise */
miiphy_read (devname, addr, MII_ADVERTISE, &adv);
adv |= (LPA_LPACK | LPA_RFAULT | LPA_100BASE4 |
LPA_100FULL | LPA_100HALF | LPA_10FULL |
LPA_10HALF);
miiphy_write (devname, addr, MII_ADVERTISE, adv);
/* Start/Restart aneg */
miiphy_read (devname, addr, MII_BMCR, &ctl);
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
miiphy_write (devname, addr, MII_BMCR, ctl);
return 0;
}
int npe_miiphy_read (const char *devname, unsigned char addr,
unsigned char reg, unsigned short *value)
{
u16 val;
ixEthAccMiiReadRtn(addr, reg, &val);
*value = val;
return 0;
} /* phy_read */
int npe_miiphy_write (const char *devname, unsigned char addr,
unsigned char reg, unsigned short value)
{
ixEthAccMiiWriteRtn(addr, reg, value);
return 0;
} /* phy_write */
|
