kernel/drivers/net/mii/mii_natsemi.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 /*
  27  * MII overrides for National Semiconductor PHYs.
  28  */
  29
  30 #include <sys/types.h>
  31 #include <sys/ddi.h>
  32 #include <sys/sunddi.h>
  33 #include <sys/mii.h>
  34 #include <sys/miiregs.h>
  35 #include "miipriv.h"
  36
  37 static int
  38 ns83840_reset(phy_handle_t *ph)
  39 {
  40         /* first do an ordinary reset */
  41         if (phy_reset(ph) != DDI_SUCCESS) {
  42                 return (DDI_FAILURE);
  43         }
  44
  45         /*
  46          * As per INTEL "PRO/100B Adapter Software Technical Reference
  47          * Manual", set bit 10 of MII register 23.  National
  48          * Semiconductor documentation shows this as "reserved, write
  49          * to as zero". We also set the "CIM_DIS" bit, also as
  50          * requested by the PRO/100B doc, to disable the carrier
  51          * integrity monitor.  (That should only ever be used by
  52          * repeaters.)
  53          *
  54          * NetBSD also sets bit 8, without any explanation, so we'll
  55          * follow suit.
  56          */
  57         PHY_SET(ph, MII_VENDOR(7), (1<<10) | (1<<8) | (1<<5));
  58         return (DDI_SUCCESS);
  59 }
  60
  61 boolean_t
  62 phy_natsemi_probe(phy_handle_t *ph)
  63 {
  64         /* We could even look at revA vs revC, etc. but there is no need. */
  65         if ((MII_PHY_MFG(ph->phy_id) != MII_OUI_NATIONAL_SEMI) &&
  66             (MII_PHY_MFG(ph->phy_id) != MII_OUI_NATIONAL_SEMI_2)) {
  67                 return (B_FALSE);
  68         }
  69         ph->phy_vendor = "National Semiconductor";
  70
  71         switch (MII_PHY_MODEL(ph->phy_id)) {
  72         case MII_MODEL_NATIONAL_SEMI_DP83840:
  73                 ph->phy_model = "DP83840";
  74                 ph->phy_reset = ns83840_reset;
  75                 return (B_TRUE);
  76
  77         case MII_MODEL_NATIONAL_SEMI_DP83843:
  78                 ph->phy_model = "DP83843";
  79                 return (B_TRUE);
  80
  81         case MII_MODEL_NATIONAL_SEMI_DP83847:
  82                 ph->phy_model = "DP83847";
  83                 return (B_TRUE);
  84
  85         case MII_MODEL_NATIONAL_SEMI_DP83815:
  86                 ph->phy_model = "DP83815";
  87                 return (B_TRUE);
  88         }
  89         return (B_FALSE);
  90 }