board/mpl/vcma9/cmd_vcma9.c

   1 /*
   2  * (C) Copyright 2002
   3  * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
   4  *
   5  * adapted for VCMA9
   6  * David Mueller, ELSOFT AG, d.mueller@elsoft.ch
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  *
  26  */
  27
  28 #include <common.h>
  29 #include <command.h>
  30 #include <net.h>
  31 #include "vcma9.h"
  32 #include "../common/common_util.h"
  33
  34 #if defined(CONFIG_CS8900)
  35 #include <../drivers/net/cs8900.h>
  36
  37 static uchar cs8900_chksum(ushort data)
  38 {
  39         return((data >> 8) & 0x00FF) + (data & 0x00FF);
  40 }
  41
  42 #endif
  43
  44 DECLARE_GLOBAL_DATA_PTR;
  45
  46 /* ------------------------------------------------------------------------- */
  47
  48 int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  49 {
  50         struct eth_device *dev;
  51         char cs8900_name[10];
  52         if (strcmp(argv[1], "info") == 0)
  53         {
  54                 vcma9_print_info();
  55                 return 0;
  56         }
  57 #if defined(CONFIG_CS8900)
  58         if (strcmp(argv[1], "cs8900") == 0) {
  59                 sprintf(cs8900_name, "%s-0", CS8900_DRIVERNAME);
  60                 dev = eth_get_dev_by_name(cs8900_name);
  61                 if (!dev) {
  62                         printf("Couldn't find CS8900 driver");
  63                         return 0;
  64                 }
  65                 if (strcmp(argv[2], "read") == 0) {
  66                         uchar addr; ushort data;
  67
  68                         addr = simple_strtoul(argv[3], NULL, 16);
  69                         cs8900_e2prom_read(dev, addr, &data);
  70                         printf("0x%2.2X: 0x%4.4X\n", addr, data);
  71                 } else if (strcmp(argv[2], "write") == 0) {
  72                         uchar addr; ushort data;
  73
  74                         addr = simple_strtoul(argv[3], NULL, 16);
  75                         data = simple_strtoul(argv[4], NULL, 16);
  76                         cs8900_e2prom_write(dev, addr, data);
  77                 } else if (strcmp(argv[2], "setaddr") == 0) {
  78                         uchar addr, i, csum; ushort data;
  79                         uchar ethaddr[6];
  80
  81                         /* check for valid ethaddr */
  82                         if (eth_getenv_enetaddr("ethaddr", ethaddr)) {
  83                                 addr = 1;
  84                                 data = 0x2158;
  85                                 cs8900_e2prom_write(dev, addr, data);
  86                                 csum = cs8900_chksum(data);
  87                                 addr++;
  88                                 for (i = 0; i < 6; i+=2) {
  89                                         data = ethaddr[i+1] << 8 |
  90                                                ethaddr[i];
  91                                         cs8900_e2prom_write(dev, addr, data);
  92                                         csum += cs8900_chksum(data);
  93                                         addr++;
  94                                 }
  95                                 /* calculate header link byte */
  96                                 data = 0xA100 | (addr * 2);
  97                                 cs8900_e2prom_write(dev, 0, data);
  98                                 csum += cs8900_chksum(data);
  99                                 /* write checksum word */
 100                                 cs8900_e2prom_write(dev, addr, (0 - csum) << 8);
 101                         } else {
 102                                 puts("\nplease defined 'ethaddr'\n");
 103                         }
 104                 } else if (strcmp(argv[2], "dump") == 0) {
 105                         uchar addr = 0, endaddr, csum; ushort data;
 106
 107                         puts("Dump of CS8900 config device: ");
 108                         cs8900_e2prom_read(dev, addr, &data);
 109                         if ((data & 0xE000) == 0xA000) {
 110                                 endaddr = (data & 0x00FF) / 2;
 111                                 csum = cs8900_chksum(data);
 112                                 for (addr = 1; addr <= endaddr; addr++) {
 113                                         cs8900_e2prom_read(dev, addr, &data);
 114                                         printf("\n0x%2.2X: 0x%4.4X", addr, data);
 115                                         csum += cs8900_chksum(data);
 116                                 }
 117                                 printf("\nChecksum: %s", (csum == 0) ? "ok" : "wrong");
 118                         } else {
 119                                 puts("no valid config found");
 120                         }
 121                         puts("\n");
 122                 }
 123
 124                 return 0;
 125         }
 126 #endif
 127
 128         return (do_mplcommon(cmdtp, flag, argc, argv));
 129 }
 130
 131 U_BOOT_CMD(
 132         vcma9, 6, 1, do_vcma9,
 133         "VCMA9 specific commands",
 134         "flash mem [SrcAddr] - updates U-Boot with image in memory\n"
 135         "vcma9 info                - displays board information"
 136 );