board/amcc/yucca/cmd_yucca.c

   1 /*
   2  * (C) Copyright 2001
   3  * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  *
   7  * hacked for evb440spe
   8  */
   9
  10 #include <common.h>
  11 #include <cli.h>
  12 #include <command.h>
  13 #include <console.h>
  14 #include "yucca.h"
  15 #include <i2c.h>
  16 #include <asm/byteorder.h>
  17
  18 extern void print_evb440spe_info(void);
  19 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
  20                 int flag, int argc, char * const argv[]);
  21
  22 /* ------------------------------------------------------------------------- */
  23 int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  24 {
  25         return setBootStrapClock (cmdtp, 1, flag, argc, argv);
  26 }
  27
  28 /* ------------------------------------------------------------------------- */
  29 /* Modify memory.
  30  *
  31  * Syntax:
  32  *      evb440spe wrclk prom0,prom1
  33  */
  34 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
  35                 int argc, char * const argv[])
  36 {
  37         uchar   chip;
  38         ulong   data;
  39         int     nbytes;
  40
  41         char sysClock[4];
  42         char cpuClock[4];
  43         char plbClock[4];
  44         char pcixClock[4];
  45
  46         if (argc < 3)
  47                 return cmd_usage(cmdtp);
  48
  49         if (strcmp(argv[2], "prom0") == 0)
  50                 chip = IIC0_BOOTPROM_ADDR;
  51         else
  52                 chip = IIC0_ALT_BOOTPROM_ADDR;
  53
  54         do {
  55                 printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
  56                 nbytes = cli_readline(" ? ");
  57
  58                 if (strcmp(console_buffer, "quit") == 0)
  59                         return 0;
  60
  61                 if ((strcmp(console_buffer, "33") != 0) &
  62                                 (strcmp(console_buffer, "66") != 0))
  63                         nbytes=0;
  64
  65                 strcpy(sysClock, console_buffer);
  66
  67         } while (nbytes == 0);
  68
  69         do {
  70                 if (strcmp(sysClock, "66") == 0) {
  71                         printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
  72                 } else {
  73 #ifdef  CONFIG_STRESS
  74                         printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
  75 #else
  76                         printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
  77 #endif
  78                 }
  79                 nbytes = cli_readline(" ? ");
  80
  81                 if (strcmp(console_buffer, "quit") == 0)
  82                         return 0;
  83
  84                 if (strcmp(sysClock, "66") == 0) {
  85                         if ((strcmp(console_buffer, "400") != 0) &
  86                                         (strcmp(console_buffer, "533") != 0)
  87 #ifdef  CONFIG_STRESS
  88                                         & (strcmp(console_buffer, "667") != 0)
  89 #endif
  90                            ) {
  91                                 nbytes = 0;
  92                         }
  93                 } else {
  94                         if ((strcmp(console_buffer, "400") != 0) &
  95                                         (strcmp(console_buffer, "500") != 0) &
  96                                         (strcmp(console_buffer, "533") != 0)
  97 #ifdef  CONFIG_STRESS
  98                                         & (strcmp(console_buffer, "667") != 0)
  99 #endif
 100                            ) {
 101                                 nbytes = 0;
 102                         }
 103                 }
 104
 105                 strcpy(cpuClock, console_buffer);
 106
 107         } while (nbytes == 0);
 108
 109         if (strcmp(cpuClock, "500") == 0){
 110                 strcpy(plbClock, "166");
 111         } else if (strcmp(cpuClock, "533") == 0){
 112                 strcpy(plbClock, "133");
 113         } else {
 114                 do {
 115                         if (strcmp(cpuClock, "400") == 0)
 116                                 printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
 117
 118 #ifdef  CONFIG_STRESS
 119                         if (strcmp(cpuClock, "667") == 0)
 120                                 printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
 121
 122 #endif
 123                         nbytes = cli_readline(" ? ");
 124
 125                         if (strcmp(console_buffer, "quit") == 0)
 126                                 return 0;
 127
 128                         if (strcmp(cpuClock, "400") == 0) {
 129                                 if ((strcmp(console_buffer, "100") != 0) &
 130                                                 (strcmp(console_buffer, "133") != 0))
 131                                         nbytes = 0;
 132                         }
 133 #ifdef  CONFIG_STRESS
 134                         if (strcmp(cpuClock, "667") == 0) {
 135                                 if ((strcmp(console_buffer, "133") != 0) &
 136                                                 (strcmp(console_buffer, "166") != 0))
 137                                         nbytes = 0;
 138                         }
 139 #endif
 140                         strcpy(plbClock, console_buffer);
 141
 142                 } while (nbytes == 0);
 143         }
 144
 145         do {
 146                 printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
 147                 nbytes = cli_readline(" ? ");
 148
 149                 if (strcmp(console_buffer, "quit") == 0)
 150                         return 0;
 151
 152                 if ((strcmp(console_buffer, "33") != 0) &
 153                                 (strcmp(console_buffer, "66") != 0) &
 154                                 (strcmp(console_buffer, "100") != 0) &
 155                                 (strcmp(console_buffer, "133") != 0)) {
 156                         nbytes = 0;
 157                 }
 158                 strcpy(pcixClock, console_buffer);
 159
 160         } while (nbytes == 0);
 161
 162         printf("\nsys clk   = %s MHz\n", sysClock);
 163         printf("cpu clk   = %s MHz\n", cpuClock);
 164         printf("plb clk   = %s MHz\n", plbClock);
 165         printf("Pci-X clk = %s MHz\n", pcixClock);
 166
 167         do {
 168                 printf("\npress [y] to write I2C bootstrap\n");
 169                 printf("or [n] to abort.\n");
 170                 printf("Don't forget to set board switches\n");
 171                 printf("according to your choice before re-starting\n");
 172                 printf("(refer to 440spe_uboot_kit_um_1_01.pdf)\n");
 173
 174                 nbytes = cli_readline(" ? ");
 175                 if (strcmp(console_buffer, "n") == 0)
 176                         return 0;
 177
 178         } while (nbytes == 0);
 179
 180         if (strcmp(sysClock, "33") == 0) {
 181                 if ((strcmp(cpuClock, "400") == 0) &
 182                                 (strcmp(plbClock, "100") == 0))
 183                         data = 0x8678c206;
 184
 185                 if ((strcmp(cpuClock, "400") == 0) &
 186                                 (strcmp(plbClock, "133") == 0))
 187                         data = 0x8678c2c6;
 188
 189                 if ((strcmp(cpuClock, "500") == 0))
 190                         data = 0x8778f2c6;
 191
 192                 if ((strcmp(cpuClock, "533") == 0))
 193                         data = 0x87790252;
 194
 195 #ifdef  CONFIG_STRESS
 196                 if ((strcmp(cpuClock, "667") == 0) &
 197                                 (strcmp(plbClock, "133") == 0))
 198                         data = 0x87794256;
 199
 200                 if ((strcmp(cpuClock, "667") == 0) &
 201                                 (strcmp(plbClock, "166") == 0))
 202                         data = 0x87794206;
 203
 204 #endif
 205         }
 206         if (strcmp(sysClock, "66") == 0) {
 207                 if ((strcmp(cpuClock, "400") == 0) &
 208                                 (strcmp(plbClock, "100") == 0))
 209                         data = 0x84706206;
 210
 211                 if ((strcmp(cpuClock, "400") == 0) &
 212                                 (strcmp(plbClock, "133") == 0))
 213                         data = 0x847062c6;
 214
 215                 if ((strcmp(cpuClock, "533") == 0))
 216                         data = 0x85708206;
 217
 218 #ifdef  CONFIG_STRESS
 219                 if ((strcmp(cpuClock, "667") == 0) &
 220                                 (strcmp(plbClock, "133") == 0))
 221                         data = 0x8570a256;
 222
 223                 if ((strcmp(cpuClock, "667") == 0) &
 224                                 (strcmp(plbClock, "166") == 0))
 225                         data = 0x8570a206;
 226
 227 #endif
 228         }
 229
 230 #ifdef  DEBUG
 231         printf(" pin strap0 to write in i2c  = %x\n", data);
 232 #endif  /* DEBUG */
 233
 234         if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0)
 235                 printf("Error writing strap0 in %s\n", argv[2]);
 236
 237         if (strcmp(pcixClock, "33") == 0)
 238                 data = 0x00000701;
 239
 240         if (strcmp(pcixClock, "66") == 0)
 241                 data = 0x00000601;
 242
 243         if (strcmp(pcixClock, "100") == 0)
 244                 data = 0x00000501;
 245
 246         if (strcmp(pcixClock, "133") == 0)
 247                 data = 0x00000401;
 248
 249         if (strcmp(plbClock, "166") == 0)
 250                 data = data | 0x05950000;
 251         else
 252                 data = data | 0x05A50000;
 253
 254 #ifdef  DEBUG
 255         printf(" pin strap1 to write in i2c  = %x\n", data);
 256 #endif  /* DEBUG */
 257
 258         udelay(1000);
 259         if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0)
 260                 printf("Error writing strap1 in %s\n", argv[2]);
 261
 262         return 0;
 263 }
 264
 265 U_BOOT_CMD(
 266         evb440spe,      3,      1,      do_evb440spe,
 267         "program the serial device strap",
 268         "wrclk [prom0|prom1] - program the serial device strap"
 269 );