board/esd/ar405/ar405.c

   1 /*
   2  * (C) Copyright 2001-2004
   3  * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include "ar405.h"
  10 #include <asm/processor.h>
  11 #include <asm/io.h>
  12 #include <command.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 extern void lxt971_no_sleep(void);
  17
  18 /* ------------------------------------------------------------------------- */
  19
  20 #if 0
  21 #define FPGA_DEBUG
  22 #endif
  23
  24 /* fpga configuration data - generated by bin2cc */
  25 const unsigned char fpgadata[] = {
  26 #include "fpgadata.c"
  27 };
  28
  29 const unsigned char fpgadata_xl30[] = {
  30 #include "fpgadata_xl30.c"
  31 };
  32
  33 /*
  34  * include common fpga code (for esd boards)
  35  */
  36 #include "../common/fpga.c"
  37
  38
  39 int board_early_init_f (void)
  40 {
  41         int index, len, i;
  42         int status;
  43
  44 #ifdef FPGA_DEBUG
  45         /* set up serial port with default baudrate */
  46         (void) get_clocks ();
  47         gd->baudrate = CONFIG_BAUDRATE;
  48         serial_init ();
  49         console_init_f ();
  50 #endif
  51
  52         /*
  53          * Boot onboard FPGA
  54          */
  55         /* first try 40er image */
  56         gd->board_type = 40;
  57         status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
  58         if (status != 0) {
  59                 /* try xl30er image */
  60                 gd->board_type = 30;
  61                 status = fpga_boot ((unsigned char *) fpgadata_xl30, sizeof (fpgadata_xl30));
  62                 if (status != 0) {
  63                         /* booting FPGA failed */
  64 #ifndef FPGA_DEBUG
  65                         /* set up serial port with default baudrate */
  66                         (void) get_clocks ();
  67                         gd->baudrate = CONFIG_BAUDRATE;
  68                         serial_init ();
  69                         console_init_f ();
  70 #endif
  71                         printf ("\nFPGA: Booting failed ");
  72                         switch (status) {
  73                         case ERROR_FPGA_PRG_INIT_LOW:
  74                                 printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
  75                                 break;
  76                         case ERROR_FPGA_PRG_INIT_HIGH:
  77                                 printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
  78                                 break;
  79                         case ERROR_FPGA_PRG_DONE:
  80                                 printf ("(Timeout: DONE not high after programming FPGA)\n ");
  81                                 break;
  82                         }
  83
  84                         /* display infos on fpgaimage */
  85                         index = 15;
  86                         for (i = 0; i < 4; i++) {
  87                                 len = fpgadata[index];
  88                                 printf ("FPGA: %s\n", &(fpgadata[index + 1]));
  89                                 index += len + 3;
  90                         }
  91                         putc ('\n');
  92                         /* delayed reboot */
  93                         for (i = 20; i > 0; i--) {
  94                                 printf ("Rebooting in %2d seconds \r", i);
  95                                 for (index = 0; index < 1000; index++)
  96                                         udelay (1000);
  97                         }
  98                         putc ('\n');
  99                         do_reset (NULL, 0, 0, NULL);
 100                 }
 101         }
 102
 103         /*
 104          * IRQ 0-15  405GP internally generated; active high; level sensitive
 105          * IRQ 16    405GP internally generated; active low; level sensitive
 106          * IRQ 17-24 RESERVED
 107          * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
 108          * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
 109          * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
 110          * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
 111          * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
 112          * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
 113          * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
 114          */
 115         mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
 116         mtdcr (UIC0ER, 0x00000000);     /* disable all ints */
 117         mtdcr (UIC0CR, 0x00000000);     /* set all to be non-critical */
 118         mtdcr (UIC0PR, 0xFFFFFF81);     /* set int polarities */
 119         mtdcr (UIC0TR, 0x10000000);     /* set int trigger levels */
 120         mtdcr (UIC0VCR, 0x00000001);    /* set vect base=0,INT0 highest priority */
 121         mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
 122
 123         out_be16((void *)0xf03000ec, 0x0fff); /* enable interrupts in fpga */
 124
 125         return 0;
 126 }
 127
 128 /*
 129  * Check Board Identity:
 130  */
 131 int checkboard (void)
 132 {
 133         int index;
 134         int len;
 135         char str[64];
 136         int i = getenv_f("serial#", str, sizeof (str));
 137         const unsigned char *fpga;
 138
 139         puts ("Board: ");
 140
 141         if (i == -1) {
 142                 puts ("### No HW ID - assuming AR405");
 143         } else {
 144                 puts(str);
 145         }
 146
 147         puts ("\nFPGA:  ");
 148
 149         /* display infos on fpgaimage */
 150         if (gd->board_type == 30) {
 151                 fpga = fpgadata_xl30;
 152         } else {
 153                 fpga = fpgadata;
 154         }
 155         index = 15;
 156         for (i = 0; i < 4; i++) {
 157                 len = fpga[index];
 158                 printf ("%s ", &(fpga[index + 1]));
 159                 index += len + 3;
 160         }
 161
 162         putc ('\n');
 163
 164         /*
 165          * Disable sleep mode in LXT971
 166          */
 167         lxt971_no_sleep();
 168
 169         return 0;
 170 }
 171
 172
 173 #if 1 /* test-only: some internal test routines... */
 174 #define DIGEN   ((void *)0xf03000b4) /* u8 */
 175 #define DIGOUT  ((void *)0xf03000b0) /* u16 */
 176 #define DIGIN   ((void *)0xf03000a0) /* u16 */
 177
 178 /*
 179  * Some test routines
 180  */
 181 int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 182 {
 183         int i;
 184         int k;
 185         int start;
 186         int end;
 187
 188         if (argc != 3) {
 189                 puts("Usage: digtest n_start n_end (digtest 0 7)\n");
 190                 return 0;
 191         }
 192
 193         start = simple_strtol (argv[1], NULL, 10);
 194         end = simple_strtol (argv[2], NULL, 10);
 195
 196         /*
 197          * Enable digital outputs
 198          */
 199         out_8(DIGEN, 0x08);
 200
 201         printf("\nStarting digital In-/Out Test from I/O %d to %d (Cntrl-C to abort)...\n",
 202                start, end);
 203
 204         /*
 205          * Set outputs one by one
 206          */
 207         for (;;) {
 208                 for (i=start; i<=end; i++) {
 209                         out_be16(DIGOUT, 0x0001 << i);
 210                         for (k=0; k<200; k++)
 211                                 udelay(1000);
 212
 213                         if (in_be16(DIGIN) != (0x0001 << i)) {
 214                                 printf("ERROR: OUT=0x%04X, IN=0x%04X\n",
 215                                        0x0001 << i, in_be16(DIGIN));
 216                                 return 0;
 217                         }
 218
 219                         /* Abort if ctrl-c was pressed */
 220                         if (ctrlc()) {
 221                                 puts("\nAbort\n");
 222                                 return 0;
 223                         }
 224                 }
 225         }
 226
 227         return 0;
 228 }
 229 U_BOOT_CMD(
 230         digtest,        3,      1,      do_digtest,
 231         "Test digital in-/output",
 232         ""
 233 );
 234
 235 #define ERROR_DELTA     256
 236
 237 struct io {
 238         short val;
 239         short dummy;
 240 };
 241
 242 int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 243 {
 244         short val;
 245         int i;
 246         int volt;
 247         struct io *out;
 248         struct io *in;
 249
 250         out = (struct io *)0xf0300090;
 251         in = (struct io *)0xf0300000;
 252
 253         i = simple_strtol (argv[1], NULL, 10);
 254
 255         volt = 0;
 256         printf("Setting Channel %d to %dV...\n", i, volt);
 257         out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 258         udelay(10000);
 259         val = in_be16((void *)&(in[i*2].val));
 260         printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 261         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 262             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 263                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 264                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 265                 return -1;
 266         }
 267         val = in_be16((void *)&(in[i*2+1].val));
 268         printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 269         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 270             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 271                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 272                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 273                 return -1;
 274         }
 275
 276         volt = 5;
 277         printf("Setting Channel %d to %dV...\n", i, volt);
 278         out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 279         udelay(10000);
 280         val = in_be16((void *)&(in[i*2].val));
 281         printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 282         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 283             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 284                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 285                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 286                 return -1;
 287         }
 288         val = in_be16((void *)&(in[i*2+1].val));
 289         printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 290         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 291             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 292                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 293                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 294                 return -1;
 295         }
 296
 297         volt = 10;
 298         printf("Setting Channel %d to %dV...\n", i, volt);
 299         out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 300         udelay(10000);
 301         val = in_be16((void *)&(in[i*2].val));
 302         printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 303         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 304             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 305                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 306                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 307                 return -1;
 308         }
 309         val = in_be16((void *)&(in[i*2+1].val));
 310         printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 311         if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 312             (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 313                 printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 314                        ((volt * 0x7fff) / 40) + ERROR_DELTA);
 315                 return -1;
 316         }
 317
 318         printf("Channel %d OK!\n", i);
 319
 320         return 0;
 321 }
 322 U_BOOT_CMD(
 323         anatest,        2,      1,      do_anatest,
 324         "Test analog in-/output",
 325         ""
 326 );
 327
 328
 329 int counter = 0;
 330
 331 void cyclicInt(void *ptr)
 332 {
 333         out_be16((void *)0xf03000e8, 0x0800); /* ack int */
 334         counter++;
 335 }
 336
 337
 338 int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 339 {
 340         ulong *incin;
 341         int i;
 342
 343         incin = (ulong *)0xf0300040;
 344
 345         /*
 346          * Clear inc counter
 347          */
 348         out_be32((void *)&incin[0], 0);
 349         out_be32((void *)&incin[1], 0);
 350         out_be32((void *)&incin[2], 0);
 351         out_be32((void *)&incin[3], 0);
 352
 353         incin = (ulong *)0xf0300050;
 354
 355         /*
 356          * Inc a little
 357          */
 358         for (i=0; i<10000; i++) {
 359                 switch (i & 0x03) {
 360                 case 0:
 361                         out_8(DIGEN, 0x02);
 362                         break;
 363                 case 1:
 364                         out_8(DIGEN, 0x03);
 365                         break;
 366                 case 2:
 367                         out_8(DIGEN, 0x01);
 368                         break;
 369                 case 3:
 370                         out_8(DIGEN, 0x00);
 371                         break;
 372                 }
 373                 udelay(10);
 374         }
 375
 376         printf("Inc 0 = %d\n", in_be32((void *)&incin[0]));
 377         printf("Inc 1 = %d\n", in_be32((void *)&incin[1]));
 378         printf("Inc 2 = %d\n", in_be32((void *)&incin[2]));
 379         printf("Inc 3 = %d\n", in_be32((void *)&incin[3]));
 380
 381         out_be16((void *)0xf03000e0, 0x0c80-1); /* set counter */
 382         out_be16((void *)0xf03000ec,
 383                  in_be16((void *)0xf03000ec) | 0x0800); /* enable int */
 384         irq_install_handler (30, (interrupt_handler_t *) cyclicInt, NULL);
 385         printf("counter=%d\n", counter);
 386
 387         return 0;
 388 }
 389 U_BOOT_CMD(
 390         inctest,        3,      1,      do_inctest,
 391         "Test incremental encoder inputs",
 392         ""
 393 );
 394 #endif