This driver supports NE2000 compatible cards (those based on DP8390, DP83902 and similar). It can be used with PCMCIA/CF cards provided that the CCR is correctly initialized. The code is based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world are GPL, so this is, of course, GPL. I developed and tested this driver on a custom PXA255 based system and with a billionton CF network card connected to the PCMCIA interface of the micro (have a look at README.PXA_CF for the support of this port). The options you have to specify in the config file are (with the value for my board as an example): #define CONFIG_DRIVER_NE2000 - Enables the driver #define CONFIG_DRIVER_NE2000_BASE (0x20000000+0x300) - Address where the board is mapped #define CONFIG_DRIVER_NE2000_CCR (0x28000000+0x3f8) - Address of the CCR (card configuration register). It could be found by enabling DEBUG in cmd_pcmcia.c. If this is not defined nothing is done as far as PCMCIA support is concerned. #define CONFIG_DRIVER_NE2000_VAL (0x20) - The value to be written in the CCR. It selects among different I/O spaces that could be used by the card. Enjoy! Christian Pellegrin