board/eltec/elppc/misc.c

   1 /*
   2  * (C) Copyright 2002 ELTEC Elektronik AG
   3  * Frank Gottschling <fgottschling@eltec.de>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /* includes */
   9 #include <common.h>
  10 #include <linux/ctype.h>
  11 #include <pci.h>
  12 #include <net.h>
  13 #include "srom.h"
  14
  15 /* imports  */
  16 extern int l2_cache_enable (int l2control);
  17 extern int eepro100_write_eeprom (struct eth_device *dev, int location,
  18                                   int addr_len, unsigned short data);
  19 extern int read_eeprom (struct eth_device *dev, int location, int addr_len);
  20
  21 /*----------------------------------------------------------------------------*/
  22 /*
  23  * read/write to nvram is only byte access
  24  */
  25 void *nvram_read (void *dest, const long src, size_t count)
  26 {
  27         uchar *d = (uchar *) dest;
  28         uchar *s = (uchar *) (CONFIG_ENV_MAP_ADRS + src);
  29
  30         while (count--)
  31                 *d++ = *s++;
  32
  33         return dest;
  34 }
  35
  36 void nvram_write (long dest, const void *src, size_t count)
  37 {
  38         uchar *d = (uchar *) (CONFIG_ENV_MAP_ADRS + dest);
  39         uchar *s = (uchar *) src;
  40
  41         while (count--)
  42                 *d++ = *s++;
  43 }
  44
  45 /*----------------------------------------------------------------------------*/
  46 /*
  47  * handle sroms on ELPPC
  48  * fix ether address
  49  * set serial console as default
  50  */
  51 int misc_init_r (void)
  52 {
  53         revinfo eerev;
  54         u_char *ptr;
  55         u_int i, l, initSrom, copyNv;
  56         char buf[256];
  57         char hex[23] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0,
  58                 0, 0, 0, 0, 10, 11, 12, 13, 14, 15
  59         };
  60
  61         /* Clock setting for MPC107 i2c */
  62         mpc107_i2c_init (MPC107_EUMB_ADDR, 0x2b);
  63
  64         /* Reset the EPIC */
  65         out32r (MPC107_EUMB_GCR, 0xa0000000);
  66         while (in32r (MPC107_EUMB_GCR) & 0x80000000);   /* Wait for reset to complete */
  67         out32r (MPC107_EUMB_GCR, 0x20000000);   /* Put into into mixed mode */
  68         while (in32r (MPC107_EUMB_IACKR) != 0xff);      /* Clear all pending interrupts */
  69
  70         /*
  71          * Check/Remake revision info
  72          */
  73         initSrom = 0;
  74         copyNv = 0;
  75
  76         /* read out current revision srom contens */
  77         mpc107_srom_load (0x0000, (u_char *) & eerev, sizeof (revinfo),
  78                           SECOND_DEVICE, FIRST_BLOCK);
  79
  80         /* read out current nvram shadow image */
  81         nvram_read (buf, CONFIG_SYS_NV_SROM_COPY_ADDR, CONFIG_SYS_SROM_SIZE);
  82
  83         if (strcmp (eerev.magic, "ELTEC") != 0) {
  84                 /* srom is not initialized -> create a default revision info */
  85                 for (i = 0, ptr = (u_char *) & eerev; i < sizeof (revinfo);
  86                      i++)
  87                         *ptr++ = 0x00;
  88                 strcpy (eerev.magic, "ELTEC");
  89                 eerev.revrev[0] = 1;
  90                 eerev.revrev[1] = 0;
  91                 eerev.size = 0x00E0;
  92                 eerev.category[0] = 0x01;
  93
  94                 /* node id from dead e128 as default */
  95                 eerev.etheraddr[0] = 0x00;
  96                 eerev.etheraddr[1] = 0x00;
  97                 eerev.etheraddr[2] = 0x5B;
  98                 eerev.etheraddr[3] = 0x00;
  99                 eerev.etheraddr[4] = 0x2E;
 100                 eerev.etheraddr[5] = 0x4D;
 101
 102                 /* cache config word for ELPPC */
 103                 memset(&eerev.res[0], 0, 4);
 104
 105                 initSrom = 1;   /* force dialog */
 106                 copyNv = 1;     /* copy to nvram */
 107         }
 108
 109         if ((copyNv == 0)
 110             && (el_srom_checksum ((u_char *) & eerev, CONFIG_SYS_SROM_SIZE) !=
 111                 el_srom_checksum ((u_char *) buf, CONFIG_SYS_SROM_SIZE))) {
 112                 printf ("Invalid revision info copy in nvram !\n");
 113                 printf ("Press key:\n  <c> to copy current revision info to nvram.\n");
 114                 printf ("  <r> to reenter revision info.\n");
 115                 printf ("=> ");
 116                 if (0 != readline (NULL)) {
 117                         switch ((char) toupper (console_buffer[0])) {
 118                         case 'C':
 119                                 copyNv = 1;
 120                                 break;
 121                         case 'R':
 122                                 copyNv = 1;
 123                                 initSrom = 1;
 124                                 break;
 125                         }
 126                 }
 127         }
 128
 129         if (initSrom) {
 130                 memcpy (buf, &eerev.revision[0][0], 14);        /* save all revision info */
 131                 printf ("Enter revision number (0-9): %c  ",
 132                         eerev.revision[0][0]);
 133                 if (0 != readline (NULL)) {
 134                         eerev.revision[0][0] =
 135                                 (char) toupper (console_buffer[0]);
 136                         memcpy (&eerev.revision[1][0], buf, 12);        /* shift rest of rev info */
 137                 }
 138
 139                 printf ("Enter revision character (A-Z): %c  ",
 140                         eerev.revision[0][1]);
 141                 if (1 == readline (NULL)) {
 142                         eerev.revision[0][1] =
 143                                 (char) toupper (console_buffer[0]);
 144                 }
 145
 146                 printf ("Enter board name (V-XXXX-XXXX): %s  ",
 147                         (char *) &eerev.board);
 148                 if (11 == readline (NULL)) {
 149                         for (i = 0; i < 11; i++)
 150                                 eerev.board[i] =
 151                                         (char) toupper (console_buffer[i]);
 152                         eerev.board[11] = '\0';
 153                 }
 154
 155                 printf ("Enter serial number: %s ", (char *) &eerev.serial);
 156                 if (6 == readline (NULL)) {
 157                         for (i = 0; i < 6; i++)
 158                                 eerev.serial[i] = console_buffer[i];
 159                         eerev.serial[6] = '\0';
 160                 }
 161
 162                 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]);
 163                 if (12 == readline (NULL)) {
 164                         for (i = 0; i < 12; i += 2)
 165                                 eerev.etheraddr[i >> 1] =
 166                                         (char) (16 *
 167                                                 hex[toupper
 168                                                     (console_buffer[i]) -
 169                                                     '0'] +
 170                                                 hex[toupper
 171                                                     (console_buffer[i + 1]) -
 172                                                     '0']);
 173                 }
 174
 175                 l = strlen ((char *) &eerev.text);
 176                 printf ("Add to text section (max 64 chr): %s ",
 177                         (char *) &eerev.text);
 178                 if (0 != readline (NULL)) {
 179                         for (i = l; i < 63; i++)
 180                                 eerev.text[i] = console_buffer[i - l];
 181                         eerev.text[63] = '\0';
 182                 }
 183
 184                 /* prepare network eeprom */
 185                 memset (buf, 0, 128);
 186
 187                 buf[0] = eerev.etheraddr[1];
 188                 buf[1] = eerev.etheraddr[0];
 189                 buf[2] = eerev.etheraddr[3];
 190                 buf[3] = eerev.etheraddr[2];
 191                 buf[4] = eerev.etheraddr[5];
 192                 buf[5] = eerev.etheraddr[4];
 193
 194                 buf[20] = 0x48;
 195                 buf[21] = 0xB2;
 196
 197                 buf[22] = 0x00;
 198                 buf[23] = 0x04;
 199
 200                 buf[24] = 0x14;
 201                 buf[25] = 0x33;
 202
 203                 printf ("\nSRom:  Writing i82559 info ........ ");
 204                 if (eepro100_srom_store ((unsigned short *) buf) == -1)
 205                         printf ("FAILED\n");
 206                 else
 207                         printf ("OK\n");
 208
 209                 /* update CRC */
 210                 eerev.crc =
 211                         el_srom_checksum ((u_char *) eerev.board, eerev.size);
 212
 213                 /* write new values */
 214                 printf ("\nSRom:  Writing revision info ...... ");
 215                 if (mpc107_srom_store
 216                     ((BLOCK_SIZE - sizeof (revinfo)), (u_char *) & eerev,
 217                      sizeof (revinfo), SECOND_DEVICE, FIRST_BLOCK) == -1)
 218                         printf ("FAILED\n\n");
 219                 else
 220                         printf ("OK\n\n");
 221
 222                 /* write new values as shadow image to nvram */
 223                 nvram_write (CONFIG_SYS_NV_SROM_COPY_ADDR, (void *) &eerev,
 224                              CONFIG_SYS_SROM_SIZE);
 225
 226         }
 227
 228         /*if (initSrom) */
 229         /* copy current values as shadow image to nvram */
 230         if (initSrom == 0 && copyNv == 1)
 231                 nvram_write (CONFIG_SYS_NV_SROM_COPY_ADDR, (void *) &eerev,
 232                              CONFIG_SYS_SROM_SIZE);
 233
 234         /* update environment */
 235         sprintf (buf, "%02x:%02x:%02x:%02x:%02x:%02x",
 236                  eerev.etheraddr[0], eerev.etheraddr[1],
 237                  eerev.etheraddr[2], eerev.etheraddr[3],
 238                  eerev.etheraddr[4], eerev.etheraddr[5]);
 239         setenv ("ethaddr", buf);
 240
 241         /* print actual board identification */
 242         printf ("Ident: %s  Ser %s  Rev %c%c\n",
 243                 eerev.board, (char *) &eerev.serial,
 244                 eerev.revision[0][0], eerev.revision[0][1]);
 245
 246         return (0);
 247 }
 248
 249 /*----------------------------------------------------------------------------*/