uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

  dm9000.c: Version 1.2 12/15/2003

​

    A Davicom DM9000 ISA NIC fast Ethernet driver for Linux.

    Copyright (C) 1997  Sten Wang

​

  (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.

​

V0.11   06/20/2001  REG_0A bit3=1, default enable BP with DA match

    06/22/2001  Support DM9801 progrmming

            E3: R25 = ((R24 + NF) & 0x00ff) | 0xf000

            E4: R25 = ((R24 + NF) & 0x00ff) | 0xc200

        R17 = (R17 & 0xfff0) | NF + 3

            E5: R25 = ((R24 + NF - 3) & 0x00ff) | 0xc200

        R17 = (R17 & 0xfff0) | NF

​

v1.00           modify by simon 2001.9.5

            change for kernel 2.4.x

​

v1.1   11/09/2001   fix force mode bug

​

v1.2   03/18/2003       Weilun Huang <weilun_huang@davicom.com.tw>:

            Fixed phy reset.

            Added tx/rx 32 bit mode.

            Cleaned up for kernel merge.

​

--------------------------------------

​

       12/15/2003       Initial port to u-boot by

                Sascha Hauer <saschahauer@web.de>

​

       06/03/2008   Remy Bohmer <linux@bohmer.net>

            - Fixed the driver to work with DM9000A.

              (check on ISR receive status bit before reading the

              FIFO as described in DM9000 programming guide and

              application notes)

            - Added autodetect of databus width.

            - Made debug code compile again.

            - Adapt eth_send such that it matches the DM9000*

              application notes. Needed to make it work properly

              for DM9000A.

            - Adapted reset procedure to match DM9000 application

              notes (i.e. double reset)

            - some minor code cleanups

            These changes are tested with DM9000{A,EP,E} together

            with a 200MHz Atmel AT91SAM9261 core

​

TODO: external MII is not functional, only internal at the moment.

*/

​

#include <common.h>

#include <command.h>

#include <net.h>

#include <asm/io.h>

#include <dm9000.h>

​

#include "dm9000x.h"

​

/* Board/System/Debug information/definition ---------------- */

​

/* #define CONFIG_DM9000_DEBUG */

​