board/evb64260/eth.h

   1 /*
   2  * (C) Copyright 2001
   3  * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * eth.h - header file for the polled mode GT ethernet driver
  26  */
  27
  28 #ifndef __GT6426x_ETH_H__
  29 #define __GT6426x_ETH_H__
  30
  31 #include <asm/types.h>
  32 #include <asm/io.h>
  33 #include <asm/byteorder.h>
  34 #include <common.h>
  35
  36 typedef struct eth0_tx_desc_struct {
  37         volatile __u32 bytecount_reserved;
  38         volatile __u32 command_status;
  39         volatile struct eth0_tx_desc_struct * next_desc;
  40         /* Note - the following will not work for 64 bit addressing */
  41         volatile unsigned char * buff_pointer;
  42 } __attribute__ ((packed)) eth0_tx_desc_single;
  43
  44 typedef struct eth0_rx_desc_struct {
  45   volatile __u32 buff_size_byte_count;
  46   volatile __u32 command_status;
  47   volatile struct eth0_rx_desc_struct * next_desc;
  48   volatile unsigned char * buff_pointer;
  49 } __attribute__ ((packed)) eth0_rx_desc_single;
  50
  51 #define NT 20 /* Number of Transmit buffers */
  52 #define NR 20 /* Number of Receive buffers */
  53 #define MAX_BUFF_SIZE (1536+2*CACHE_LINE_SIZE) /* 1600 */
  54 #define ETHERNET_PORTS_DIFFERENCE_OFFSETS 0x400
  55
  56 unsigned long TDN_ETH0 , RDN_ETH0; /* Rx/Tx current Descriptor Number*/
  57 unsigned int EVB64260_ETH0_irq;
  58
  59 #define CLOSED 0
  60 #define OPENED 1
  61
  62 #define PORT_ETH0 0
  63
  64 extern eth0_tx_desc_single *eth0_tx_desc;
  65 extern eth0_rx_desc_single *eth0_rx_desc;
  66 extern char *eth0_tx_buffer;
  67 extern char *eth0_rx_buffer[NR];
  68 extern char *eth_data;
  69
  70 extern int gt6426x_eth_poll(void *v);
  71 extern int gt6426x_eth_transmit(void *v, volatile char *p, unsigned int s);
  72 extern void gt6426x_eth_disable(void *v);
  73 extern int gt6426x_eth_probe(void *v, bd_t *bis);
  74
  75 #endif  /* __GT64260x_ETH_H__ */