uboot/doc/README.ne2000
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   1This driver supports NE2000 compatible cards (those based on DP8390,
   2DP83902 and similar). It can be used with PCMCIA/CF cards provided
   3that the CCR is correctly initialized.
   4
   5The code is based on sources from the Linux kernel (pcnet_cs.c,
   68390.h) and eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2
   7wonderful world are GPL, so this is, of course, GPL.
   8
   9I developed and tested this driver on a custom PXA255 based system and
  10with a billionton CF network card connected to the PCMCIA interface of
  11the micro (have a look at README.PXA_CF for the support of this port).
  12
  13The options you have to specify in the config file are (with the
  14value for my board as an example):
  15
  16#define CONFIG_DRIVER_NE2000
  17
  18- Enables the driver
  19
  20#define CONFIG_DRIVER_NE2000_BASE (0x20000000+0x300)
  21
  22- Address where the board is mapped
  23
  24#define CONFIG_DRIVER_NE2000_CCR (0x28000000+0x3f8)
  25
  26- Address of the CCR (card configuration register). It could be found
  27by enabling DEBUG in cmd_pcmcia.c. If this is not defined nothing is
  28done as far as PCMCIA support is concerned.
  29
  30#define CONFIG_DRIVER_NE2000_VAL (0x20)
  31
  32- The value to be written in the CCR. It selects among different I/O
  33spaces that could be used by the card.
  34
  35
  36Enjoy!
  37
  38Christian Pellegrin <chri@ascensit.com>
  39