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 "vcma9.h"
  31 #include "../common/common_util.h"
  32
  33 #if defined(CONFIG_DRIVER_CS8900)
  34 #include <../drivers/cs8900.h>
  35
  36 static uchar cs8900_chksum(ushort data)
  37 {
  38         return((data >> 8) & 0x00FF) + (data & 0x00FF);
  39 }
  40
  41 #endif
  42
  43 extern void print_vcma9_info(void);
  44 extern int vcma9_cantest(void);
  45 extern int vcma9_nandtest(void);
  46 extern int vcma9_dactest(void);
  47 extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  48
  49 /* ------------------------------------------------------------------------- */
  50
  51 int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  52 {
  53         DECLARE_GLOBAL_DATA_PTR;
  54
  55         if (strcmp(argv[1], "info") == 0)
  56         {
  57                 print_vcma9_info();
  58                 return 0;
  59         }
  60 #if defined(CONFIG_DRIVER_CS8900)
  61         if (strcmp(argv[1], "cs8900_eeprom") == 0) {
  62                 if (strcmp(argv[2], "read") == 0) {
  63                         uchar addr; ushort data;
  64
  65                         addr = simple_strtoul(argv[3], NULL, 16);
  66                         cs8900_e2prom_read(addr, &data);
  67                         printf("0x%2.2X: 0x%4.4X\n", addr, data);
  68                 } else if (strcmp(argv[2], "write") == 0) {
  69                         uchar addr; ushort data;
  70
  71                         addr = simple_strtoul(argv[3], NULL, 16);
  72                         data = simple_strtoul(argv[4], NULL, 16);
  73                         cs8900_e2prom_write(addr, data);
  74                 } else if (strcmp(argv[2], "setaddr") == 0) {
  75                         uchar addr, i, csum; ushort data;
  76
  77                         /* check for valid ethaddr */
  78                         for (i = 0; i < 6; i++)
  79                                 if (gd->bd->bi_enetaddr[i] != 0)
  80                                         break;
  81
  82                         if (i < 6) {
  83                                 addr = 1;
  84                                 data = 0x2158;
  85                                 cs8900_e2prom_write(addr, data);
  86                                 csum = cs8900_chksum(data);
  87                                 addr++;
  88                                 for (i = 0; i < 6; i+=2) {
  89                                         data = gd->bd->bi_enetaddr[i+1] << 8 |
  90                                                gd->bd->bi_enetaddr[i];
  91                                         cs8900_e2prom_write(addr, data);
  92                                         csum += cs8900_chksum(data);
  93                                         addr++;
  94                                 }
  95                                 /* calculate header link byte */
  96                                 data = 0xA100 | (addr * 2);
  97                                 cs8900_e2prom_write(0, data);
  98                                 csum += cs8900_chksum(data);
  99                                 /* write checksum word */
 100                                 cs8900_e2prom_write(addr, (0 - csum) << 8);
 101                         } else {
 102                                 printf("\nplease defined 'ethaddr'\n");
 103                         }
 104                 } else if (strcmp(argv[2], "dump") == 0) {
 105                         uchar addr = 0, endaddr, csum; ushort data;
 106
 107                         printf("Dump of CS8900 config device: ");
 108                         cs8900_e2prom_read(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(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                                 printf("no valid config found");
 120                         }
 121                         printf("\n");
 122                 }
 123
 124                 return 0;
 125         }
 126 #endif
 127 #if 0
 128         if (strcmp(argv[1], "cantest") == 0) {
 129                 vcma9_cantest();
 130                 return 0;
 131         }
 132         if (strcmp(argv[1], "nandtest") == 0) {
 133                 vcma9_nandtest();
 134                 return 0;
 135         }
 136         if (strcmp(argv[1], "dactest") == 0) {
 137                 vcma9_dactest();
 138                 return 0;
 139         }
 140 #endif
 141
 142         return (do_mplcommon(cmdtp, flag, argc, argv));
 143 }
 144