summaryrefslogtreecommitdiff
path: root/drivers/net/npe/miiphy.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/npe/miiphy.c')
-rw-r--r--drivers/net/npe/miiphy.c120
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 */