board/eltec/elppc/misc.c

   1 /*
   2  * (C) Copyright 2002 ELTEC Elektronik AG
   3  * Frank Gottschling <fgottschling@eltec.de>
   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 /* includes */
  25 #include <common.h>
  26 #include <linux/ctype.h>
  27 #include <pci.h>
  28 #include <net.h>
  29 #include "srom.h"
  30
  31 /* imports  */
  32 extern char console_buffer[CONFIG_SYS_CBSIZE];
  33 extern int l2_cache_enable (int l2control);
  34 extern int eepro100_write_eeprom (struct eth_device *dev, int location,
  35                                   int addr_len, unsigned short data);
  36 extern int read_eeprom (struct eth_device *dev, int location, int addr_len);
  37
  38 /*----------------------------------------------------------------------------*/
  39 /*
  40  * read/write to nvram is only byte access
  41  */
  42 void *nvram_read (void *dest, const long src, size_t count)
  43 {
  44         uchar *d = (uchar *) dest;
  45         uchar *s = (uchar *) (CONFIG_ENV_MAP_ADRS + src);
  46
  47         while (count--)
  48                 *d++ = *s++;
  49
  50         return dest;
  51 }
  52
  53 void nvram_write (long dest, const void *src, size_t count)
  54 {
  55         uchar *d = (uchar *) (CONFIG_ENV_MAP_ADRS + dest);
  56         uchar *s = (uchar *) src;
  57
  58         while (count--)
  59                 *d++ = *s++;
  60 }
  61
  62 /*----------------------------------------------------------------------------*/
  63 /*
  64  * handle sroms on ELPPC
  65  * fix ether address
  66  * set serial console as default
  67  */
  68 int misc_init_r (void)
  69 {
  70         revinfo eerev;
  71         u_char *ptr;
  72         u_int i, l, initSrom, copyNv;
  73         char buf[256];
  74         char hex[23] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0,
  75                 0, 0, 0, 0, 10, 11, 12, 13, 14, 15
  76         };
  77
  78         /* Clock setting for MPC107 i2c */
  79         mpc107_i2c_init (MPC107_EUMB_ADDR, 0x2b);
  80
  81         /* Reset the EPIC */
  82         out32r (MPC107_EUMB_GCR, 0xa0000000);
  83         while (in32r (MPC107_EUMB_GCR) & 0x80000000);   /* Wait for reset to complete */
  84         out32r (MPC107_EUMB_GCR, 0x20000000);   /* Put into into mixed mode */
  85         while (in32r (MPC107_EUMB_IACKR) != 0xff);      /* Clear all pending interrupts */
  86
  87         /*
  88          * Check/Remake revision info
  89          */
  90         initSrom = 0;
  91         copyNv = 0;
  92
  93         /* read out current revision srom contens */
  94         mpc107_srom_load (0x0000, (u_char *) & eerev, sizeof (revinfo),
  95                           SECOND_DEVICE, FIRST_BLOCK);
  96
  97         /* read out current nvram shadow image */
  98         nvram_read (buf, CONFIG_SYS_NV_SROM_COPY_ADDR, CONFIG_SYS_SROM_SIZE);
  99
 100         if (strcmp (eerev.magic, "ELTEC") != 0) {
 101                 /* srom is not initialized -> create a default revision info */
 102                 for (i = 0, ptr = (u_char *) & eerev; i < sizeof (revinfo);
 103                      i++)
 104                         *ptr++ = 0x00;
 105                 strcpy (eerev.magic, "ELTEC");
 106                 eerev.revrev[0] = 1;
 107                 eerev.revrev[1] = 0;
 108                 eerev.size = 0x00E0;
 109                 eerev.category[0] = 0x01;
 110
 111                 /* node id from dead e128 as default */
 112                 eerev.etheraddr[0] = 0x00;
 113                 eerev.etheraddr[1] = 0x00;
 114                 eerev.etheraddr[2] = 0x5B;
 115                 eerev.etheraddr[3] = 0x00;
 116                 eerev.etheraddr[4] = 0x2E;
 117                 eerev.etheraddr[5] = 0x4D;
 118
 119                 /* cache config word for ELPPC */
 120                 *(int *) &eerev.res[0] = 0;
 121
 122                 initSrom = 1;   /* force dialog */
 123                 copyNv = 1;     /* copy to nvram */
 124         }
 125
 126         if ((copyNv == 0)
 127             && (el_srom_checksum ((u_char *) & eerev, CONFIG_SYS_SROM_SIZE) !=
 128                 el_srom_checksum ((u_char *) buf, CONFIG_SYS_SROM_SIZE))) {
 129                 printf ("Invalid revision info copy in nvram !\n");
 130                 printf ("Press key:\n  <c> to copy current revision info to nvram.\n");
 131                 printf ("  <r> to reenter revision info.\n");
 132                 printf ("=> ");
 133                 if (0 != readline (NULL)) {
 134                         switch ((char) toupper (console_buffer[0])) {
 135                         case 'C':
 136                                 copyNv = 1;
 137                                 break;
 138                         case 'R':
 139                                 copyNv = 1;
 140                                 initSrom = 1;
 141                                 break;
 142                         }
 143                 }
 144         }
 145
 146         if (initSrom) {
 147                 memcpy (buf, &eerev.revision[0][0], 14);        /* save all revision info */
 148                 printf ("Enter revision number (0-9): %c  ",
 149                         eerev.revision[0][0]);
 150                 if (0 != readline (NULL)) {
 151                         eerev.revision[0][0] =
 152                                 (char) toupper (console_buffer[0]);
 153                         memcpy (&eerev.revision[1][0], buf, 12);        /* shift rest of rev info */
 154                 }
 155
 156                 printf ("Enter revision character (A-Z): %c  ",
 157                         eerev.revision[0][1]);
 158                 if (1 == readline (NULL)) {
 159                         eerev.revision[0][1] =
 160                                 (char) toupper (console_buffer[0]);
 161                 }
 162
 163                 printf ("Enter board name (V-XXXX-XXXX): %s  ",
 164                         (char *) &eerev.board);
 165                 if (11 == readline (NULL)) {
 166                         for (i = 0; i < 11; i++)
 167                                 eerev.board[i] =
 168                                         (char) toupper (console_buffer[i]);
 169                         eerev.board[11] = '\0';
 170                 }
 171
 172                 printf ("Enter serial number: %s ", (char *) &eerev.serial);
 173                 if (6 == readline (NULL)) {
 174                         for (i = 0; i < 6; i++)
 175                                 eerev.serial[i] = console_buffer[i];
 176                         eerev.serial[6] = '\0';
 177                 }
 178
 179                 printf ("Enter ether node ID with leading zero (HEX): %02x%02x%02x%02x%02x%02x  ", eerev.etheraddr[0], eerev.etheraddr[1], eerev.etheraddr[2], eerev.etheraddr[3], eerev.etheraddr[4], eerev.etheraddr[5]);
 180                 if (12 == readline (NULL)) {
 181                         for (i = 0; i < 12; i += 2)
 182                                 eerev.etheraddr[i >> 1] =
 183                                         (char) (16 *
 184                                                 hex[toupper
 185                                                     (console_buffer[i]) -
 186                                                     '0'] +
 187                                                 hex[toupper
 188                                                     (console_buffer[i + 1]) -
 189                                                     '0']);
 190                 }
 191
 192                 l = strlen ((char *) &eerev.text);
 193                 printf ("Add to text section (max 64 chr): %s ",
 194                         (char *) &eerev.text);
 195                 if (0 != readline (NULL)) {
 196                         for (i = l; i < 63; i++)
 197                                 eerev.text[i] = console_buffer[i - l];
 198                         eerev.text[63] = '\0';
 199                 }
 200
 201                 /* prepare network eeprom */
 202                 memset (buf, 0, 128);
 203
 204                 buf[0] = eerev.etheraddr[1];
 205                 buf[1] = eerev.etheraddr[0];
 206                 buf[2] = eerev.etheraddr[3];
 207                 buf[3] = eerev.etheraddr[2];
 208                 buf[4] = eerev.etheraddr[5];
 209                 buf[5] = eerev.etheraddr[4];
 210
 211                 *(unsigned short *) &buf[20] = 0x48B2;
 212                 *(unsigned short *) &buf[22] = 0x0004;
 213                 *(unsigned short *) &buf[24] = 0x1433;
 214
 215                 printf ("\nSRom:  Writing i82559 info ........ ");
 216                 if (eepro100_srom_store ((unsigned short *) buf) == -1)
 217                         printf ("FAILED\n");
 218                 else
 219                         printf ("OK\n");
 220
 221                 /* update CRC */
 222                 eerev.crc =
 223                         el_srom_checksum ((u_char *) eerev.board, eerev.size);
 224
 225                 /* write new values */
 226                 printf ("\nSRom:  Writing revision info ...... ");
 227                 if (mpc107_srom_store
 228                     ((BLOCK_SIZE - sizeof (revinfo)), (u_char *) & eerev,
 229                      sizeof (revinfo), SECOND_DEVICE, FIRST_BLOCK) == -1)
 230                         printf ("FAILED\n\n");
 231                 else
 232                         printf ("OK\n\n");
 233
 234                 /* write new values as shadow image to nvram */
 235                 nvram_write (CONFIG_SYS_NV_SROM_COPY_ADDR, (void *) &eerev,
 236                              CONFIG_SYS_SROM_SIZE);
 237
 238         }
 239
 240         /*if (initSrom) */
 241         /* copy current values as shadow image to nvram */
 242         if (initSrom == 0 && copyNv == 1)
 243                 nvram_write (CONFIG_SYS_NV_SROM_COPY_ADDR, (void *) &eerev,
 244                              CONFIG_SYS_SROM_SIZE);
 245
 246         /* update environment */
 247         sprintf (buf, "%02x:%02x:%02x:%02x:%02x:%02x",
 248                  eerev.etheraddr[0], eerev.etheraddr[1],
 249                  eerev.etheraddr[2], eerev.etheraddr[3],
 250                  eerev.etheraddr[4], eerev.etheraddr[5]);
 251         setenv ("ethaddr", buf);
 252
 253         /* print actual board identification */
 254         printf ("Ident: %s  Ser %s  Rev %c%c\n",
 255                 eerev.board, (char *) &eerev.serial,
 256                 eerev.revision[0][0], eerev.revision[0][1]);
 257
 258         return (0);
 259 }
 260
 261 /*----------------------------------------------------------------------------*/