board/amcc/yucca/cmd_yucca.c

   1 /*
   2  * (C) Copyright 2001
   3  * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
   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  * hacked for evb440spe
  24  */
  25
  26 #include <common.h>
  27 #include <command.h>
  28 #include "yucca.h"
  29 #include <i2c.h>
  30 #include <asm/byteorder.h>
  31
  32 extern void print_evb440spe_info(void);
  33 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
  34                 int flag, int argc, char *argv[]);
  35
  36 extern int cmd_get_data_size(char* arg, int default_size);
  37
  38 /* ------------------------------------------------------------------------- */
  39 int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  40 {
  41         return setBootStrapClock (cmdtp, 1, flag, argc, argv);
  42 }
  43
  44 /* ------------------------------------------------------------------------- */
  45 /* Modify memory.
  46  *
  47  * Syntax:
  48  *      evb440spe wrclk prom0,prom1
  49  */
  50 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
  51                 int argc, char *argv[])
  52 {
  53         uchar   chip;
  54         ulong   data;
  55         int     nbytes;
  56         extern char console_buffer[];
  57
  58         char sysClock[4];
  59         char cpuClock[4];
  60         char plbClock[4];
  61         char pcixClock[4];
  62
  63         if (argc < 3) {
  64                 printf ("Usage:\n%s\n", cmdtp->usage);
  65                 return 1;
  66         }
  67
  68         if (strcmp(argv[2], "prom0") == 0)
  69                 chip = IIC0_BOOTPROM_ADDR;
  70         else
  71                 chip = IIC0_ALT_BOOTPROM_ADDR;
  72
  73         do {
  74                 printf("enter sys clock frequency 33 or 66 Mhz or quit to abort\n");
  75                 nbytes = readline (" ? ");
  76
  77                 if (strcmp(console_buffer, "quit") == 0)
  78                         return 0;
  79
  80                 if ((strcmp(console_buffer, "33") != 0) &
  81                                 (strcmp(console_buffer, "66") != 0))
  82                         nbytes=0;
  83
  84                 strcpy(sysClock, console_buffer);
  85
  86         } while (nbytes == 0);
  87
  88         do {
  89                 if (strcmp(sysClock, "66") == 0) {
  90                         printf("enter cpu clock frequency 400, 533 Mhz or quit to abort\n");
  91                 } else {
  92 #ifdef  CONFIG_STRESS
  93                         printf("enter cpu clock frequency 400, 500, 533, 667 Mhz or quit to abort\n");
  94 #else
  95                         printf("enter cpu clock frequency 400, 500, 533 Mhz or quit to abort\n");
  96 #endif
  97                 }
  98                 nbytes = readline (" ? ");
  99
 100                 if (strcmp(console_buffer, "quit") == 0)
 101                         return 0;
 102
 103                 if (strcmp(sysClock, "66") == 0) {
 104                         if ((strcmp(console_buffer, "400") != 0) &
 105                                         (strcmp(console_buffer, "533") != 0)
 106 #ifdef  CONFIG_STRESS
 107                                         & (strcmp(console_buffer, "667") != 0)
 108 #endif
 109                            ) {
 110                                 nbytes = 0;
 111                         }
 112                 } else {
 113                         if ((strcmp(console_buffer, "400") != 0) &
 114                                         (strcmp(console_buffer, "500") != 0) &
 115                                         (strcmp(console_buffer, "533") != 0)
 116 #ifdef  CONFIG_STRESS
 117                                         & (strcmp(console_buffer, "667") != 0)
 118 #endif
 119                            ) {
 120                                 nbytes = 0;
 121                         }
 122                 }
 123
 124                 strcpy(cpuClock, console_buffer);
 125
 126         } while (nbytes == 0);
 127
 128         if (strcmp(cpuClock, "500") == 0){
 129                 strcpy(plbClock, "166");
 130         } else if (strcmp(cpuClock, "533") == 0){
 131                 strcpy(plbClock, "133");
 132         } else {
 133                 do {
 134                         if (strcmp(cpuClock, "400") == 0)
 135                                 printf("enter plb clock frequency 100, 133 Mhz or quit to abort\n");
 136
 137 #ifdef  CONFIG_STRESS
 138                         if (strcmp(cpuClock, "667") == 0)
 139                                 printf("enter plb clock frequency 133, 166 Mhz or quit to abort\n");
 140
 141 #endif
 142                         nbytes = readline (" ? ");
 143
 144                         if (strcmp(console_buffer, "quit") == 0)
 145                                 return 0;
 146
 147                         if (strcmp(cpuClock, "400") == 0) {
 148                                 if ((strcmp(console_buffer, "100") != 0) &
 149                                                 (strcmp(console_buffer, "133") != 0))
 150                                         nbytes = 0;
 151                         }
 152 #ifdef  CONFIG_STRESS
 153                         if (strcmp(cpuClock, "667") == 0) {
 154                                 if ((strcmp(console_buffer, "133") != 0) &
 155                                                 (strcmp(console_buffer, "166") != 0))
 156                                         nbytes = 0;
 157                         }
 158 #endif
 159                         strcpy(plbClock, console_buffer);
 160
 161                 } while (nbytes == 0);
 162         }
 163
 164         do {
 165                 printf("enter Pci-X clock frequency 33, 66, 100 or 133 Mhz or quit to abort\n");
 166                 nbytes = readline (" ? ");
 167
 168                 if (strcmp(console_buffer, "quit") == 0)
 169                         return 0;
 170
 171                 if ((strcmp(console_buffer, "33") != 0) &
 172                                 (strcmp(console_buffer, "66") != 0) &
 173                                 (strcmp(console_buffer, "100") != 0) &
 174                                 (strcmp(console_buffer, "133") != 0)) {
 175                         nbytes = 0;
 176                 }
 177                 strcpy(pcixClock, console_buffer);
 178
 179         } while (nbytes == 0);
 180
 181         printf("\nsys clk   = %sMhz\n", sysClock);
 182         printf("cpu clk   = %sMhz\n", cpuClock);
 183         printf("plb clk   = %sMhz\n", plbClock);
 184         printf("Pci-X clk = %sMhz\n", pcixClock);
 185
 186         do {
 187                 printf("\npress [y] to write I2C bootstrap \n");
 188                 printf("or [n] to abort.  \n");
 189                 printf("Don't forget to set board switches \n");
 190                 printf("according to your choice before re-starting \n");
 191                 printf("(refer to 440spe_uboot_kit_um_1_01.pdf) \n");
 192
 193                 nbytes = readline (" ? ");
 194                 if (strcmp(console_buffer, "n") == 0)
 195                         return 0;
 196
 197         } while (nbytes == 0);
 198
 199         if (strcmp(sysClock, "33") == 0) {
 200                 if ((strcmp(cpuClock, "400") == 0) &
 201                                 (strcmp(plbClock, "100") == 0))
 202                         data = 0x8678c206;
 203
 204                 if ((strcmp(cpuClock, "400") == 0) &
 205                                 (strcmp(plbClock, "133") == 0))
 206                         data = 0x8678c2c6;
 207
 208                 if ((strcmp(cpuClock, "500") == 0))
 209                         data = 0x8778f2c6;
 210
 211                 if ((strcmp(cpuClock, "533") == 0))
 212                         data = 0x87790252;
 213
 214 #ifdef  CONFIG_STRESS
 215                 if ((strcmp(cpuClock, "667") == 0) &
 216                                 (strcmp(plbClock, "133") == 0))
 217                         data = 0x87794256;
 218
 219                 if ((strcmp(cpuClock, "667") == 0) &
 220                                 (strcmp(plbClock, "166") == 0))
 221                         data = 0x87794206;
 222
 223 #endif
 224         }
 225         if (strcmp(sysClock, "66") == 0) {
 226                 if ((strcmp(cpuClock, "400") == 0) &
 227                                 (strcmp(plbClock, "100") == 0))
 228                         data = 0x84706206;
 229
 230                 if ((strcmp(cpuClock, "400") == 0) &
 231                                 (strcmp(plbClock, "133") == 0))
 232                         data = 0x847062c6;
 233
 234                 if ((strcmp(cpuClock, "533") == 0))
 235                         data = 0x85708206;
 236
 237 #ifdef  CONFIG_STRESS
 238                 if ((strcmp(cpuClock, "667") == 0) &
 239                                 (strcmp(plbClock, "133") == 0))
 240                         data = 0x8570a256;
 241
 242                 if ((strcmp(cpuClock, "667") == 0) &
 243                                 (strcmp(plbClock, "166") == 0))
 244                         data = 0x8570a206;
 245
 246 #endif
 247         }
 248
 249 #ifdef  DEBUG
 250         printf(" pin strap0 to write in i2c  = %x\n", data);
 251 #endif  /* DEBUG */
 252
 253         if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0)
 254                 printf("Error writing strap0 in %s\n", argv[2]);
 255
 256         if (strcmp(pcixClock, "33") == 0)
 257                 data = 0x00000701;
 258
 259         if (strcmp(pcixClock, "66") == 0)
 260                 data = 0x00000601;
 261
 262         if (strcmp(pcixClock, "100") == 0)
 263                 data = 0x00000501;
 264
 265         if (strcmp(pcixClock, "133") == 0)
 266                 data = 0x00000401;
 267
 268         if (strcmp(plbClock, "166") == 0)
 269                 data = data | 0x05950000;
 270         else
 271                 data = data | 0x05A50000;
 272
 273 #ifdef  DEBUG
 274         printf(" pin strap1 to write in i2c  = %x\n", data);
 275 #endif  /* DEBUG */
 276
 277         udelay(1000);
 278         if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0)
 279                 printf("Error writing strap1 in %s\n", argv[2]);
 280
 281         return 0;
 282 }
 283
 284 U_BOOT_CMD(
 285         evb440spe,      3,      1,      do_evb440spe,
 286         "evb440spe - program the serial device strap\n",
 287         "wrclk [prom0|prom1] - program the serial device strap\n"
 288 );