//==========================================================================
//
//      ics1890.c
//
//      
//
//==========================================================================
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// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
// 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     
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// version.                                                                 
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// for more details.                                                        
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// You should have received a copy of the GNU General Public License        
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// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
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// General Public License v2.                                               
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// on this file might be covered by the GNU General Public License.         
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// ####ECOSGPLCOPYRIGHTEND####                                              
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas, jskov
//               Grant Edwards <grante@visi.com>
// Date:         2001-07-31
// Purpose:      
// Description:  
//
//####DESCRIPTIONEND####
//
//========================================================================*/

#include "std.h"
#include "ks5000_regs.h"
#include "phy.h"

#define	PHY_CNTL_REG 	0x00
#define	PHY_STATUS_REG 	0x01
#define	PHY_ID_REG1    	0x02
#define	PHY_ID_REG2    	0x03
#define	PHY_ANA_REG    	0x04
#define	PHY_ANLPAR_REG 	0x05
#define	PHY_ANE_REG    	0x06
#define	PHY_ECNTL_REG1 	0x10
#define	PHY_QPDS_REG   	0x11
#define	PHY_10BOP_REG  	0x12
#define	PHY_ECNTL_REG2 	0x13

#ifdef CYGPKG_DEVS_ETH_ARM_KS32C5000_PHYADDR
#define PHYHWADDR  CYGPKG_DEVS_ETH_ARM_KS32C5000_PHYADDR
#else
#define PHYHWADDR  1
#endif

#define Bit(n) (1<<(n))

#define RESET_PHY	Bit(15)
#define ENABLE_LOOPBACK	Bit(14)
#define DR_100MB	Bit(13)
#define ENABLE_AN	Bit(12)
#define PHY_MAC_ISOLATE	Bit(10)
#define RESTART_AN	Bit(9)
#define PHY_FULLDUPLEX	Bit(8)
#define PHY_COL_TEST	Bit(7)

void PhyReset(void)
{
  MiiStationWrite(PHY_CNTL_REG, PHYHWADDR, RESET_PHY ) ;
  MiiStationWrite(PHY_CNTL_REG, PHYHWADDR, ENABLE_AN | RESTART_AN) ;
}

unsigned PhyStatus(void)
{
  unsigned status = MiiStationRead(PHY_QPDS_REG,PHYHWADDR);
  unsigned r = 0;
  if (status & Bit(0))
    r |= PhyStatus_LinkUp;
  if (status & Bit(14))
    r |= PhyStatus_FullDuplex;
  if (status & Bit(15))
    r |=  PhyStatus_100Mb;
  return r;
}
