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Diffstat (limited to 'drivers/net/npe/miiphy.c')
| -rw-r--r-- | drivers/net/npe/miiphy.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/net/npe/miiphy.c b/drivers/net/npe/miiphy.c new file mode 100644 index 0000000..a04779a --- /dev/null +++ b/drivers/net/npe/miiphy.c @@ -0,0 +1,120 @@ +/*-----------------------------------------------------------------------------+ + | This source code is dual-licensed. You may use it under the terms of the + | GNU General Public License version 2, or under the license below. + | + | This source code has been made available to you by IBM on an AS-IS + | basis. Anyone receiving this source is licensed under IBM + | copyrights to use it in any way he or she deems fit, including + | copying it, modifying it, compiling it, and redistributing it either + | with or without modifications. No license under IBM patents or + | patent applications is to be implied by the copyright license. + | + | Any user of this software should understand that IBM cannot provide + | technical support for this software and will not be responsible for + | any consequences resulting from the use of this software. + | + | Any person who transfers this source code or any derivative work + | must include the IBM copyright notice, this paragraph, and the + | preceding two paragraphs in the transferred software. + | + | COPYRIGHT I B M CORPORATION 1995 + | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M + +-----------------------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------+ + | + | 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 */ |