Patch for Intel LXT972ALC PHY

[Markus Schade <marks at peppercon dot de>]

This adds support for the Intel LXT972ALC PHY

diff -Nbaur ecos-cvs/packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl ecos/packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl
--- ecos-cvs/packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl	2004-10-05 10:02:04.000000000 +0200
+++ ecos/packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl	2005-04-11 14:36:11.000000000 +0200
@@ -87,4 +87,13 @@
         description "
           Include support for AMD 79C874 NetPHY"
     }
+
+    cdl_option CYGHWR_DEVS_ETH_PHY_INLXT972ALC {
+        display       "Intel LXT972ALC"
+        flavor        bool
+        default_value 0
+        compile       -library=libextras.a INLXT972ALC.c
+        description "
+          Include support for Intel LXT972ALC PHY"
+    }
 }
diff -Nbaur ecos-cvs/packages/devs/eth/phy/current/src/INLXT972ALC.c ecos/packages/devs/eth/phy/current/src/INLXT972ALC.c
--- ecos-cvs/packages/devs/eth/phy/current/src/INLXT972ALC.c	1970-01-01 01:00:00.000000000 +0100
+++ ecos/packages/devs/eth/phy/current/src/INLXT972ALC.c	2005-04-25 09:52:59.000000000 +0200
@@ -0,0 +1,98 @@
+//==========================================================================
+//
+//      dev/INLXT972ALC.c
+//
+//      Ethernet transciever (PHY) support 
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2005 Markus Schade
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    Markus Schade <marks@peppercon.de>
+// Contributors:
+// Date:         2005-04­11
+// Purpose:      
+// Description:  Support for ethernet Intel LXT972ALC PHY
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <pkgconf/system.h>
+#include <pkgconf/devs_eth_phy.h>
+
+#include <cyg/infra/cyg_type.h>
+#include <cyg/infra/diag.h>
+
+#include <cyg/hal/hal_arch.h>
+#include <cyg/hal/drv_api.h>
+#include <cyg/hal/hal_if.h>
+#include <cyg/hal/hal_tables.h>
+
+#include <cyg/io/eth_phy.h>
+#include <cyg/io/eth_phy_dev.h>
+
+static bool inlxt972alc_stat(eth_phy_access_t *f, int *state)
+{
+    unsigned short phy_state;
+    int tries;
+
+    // Read negotiated state
+    if (_eth_phy_read(f, PHY_BMSR, f->phy_addr, &phy_state)) {
+        if ((phy_state & PHY_BMSR_AUTO_NEG) == 0) {
+            diag_printf("... waiting for auto-negotiation");
+            for (tries = 0;  tries < CYGINT_DEVS_ETH_PHY_AUTO_NEGOTIATION_TIME;  tries++) {
+                if (_eth_phy_read(f, PHY_BMSR, f->phy_addr, &phy_state)) {
+                    if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
+                        break;
+                    }
+                }
+                CYGACC_CALL_IF_DELAY_US(1000000);   // 1 second
+                diag_printf(".");
+            }
+            diag_printf("\n");
+        }
+        if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
+            *state = 0;
+            if ((phy_state & PHY_BMSR_LINK) != 0) *state |= ETH_PHY_STAT_LINK;
+            if ((phy_state & PHY_BMSR_100FDX) != 0) *state |= ETH_PHY_STAT_100MB | ETH_PHY_STAT_FDX;
+            return true;
+        }
+    }
+    return false;
+}
+
+_eth_phy_dev("Intel LXT972ALC", 0x001378E2, inlxt972alc_stat)