LXR uboot/board/esd/ar405/ar405.c

   1/*
   2 * (C) Copyright 2001-2004
   3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
   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#include <common.h>
  25#include "ar405.h"
  26#include <asm/processor.h>
  27#include <asm/io.h>
  28#include <command.h>
  29
  30DECLARE_GLOBAL_DATA_PTR;
  31
  32/*cmd_boot.c*/
  33extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  34extern void lxt971_no_sleep(void);
  35
  36/* ------------------------------------------------------------------------- */
  37
  38#if 0
  39#define FPGA_DEBUG
  40#endif
  41
  42/* fpga configuration data - generated by bin2cc */
  43const unsigned char fpgadata[] = {
  44#include "fpgadata.c"
  45};
  46
  47const unsigned char fpgadata_xl30[] = {
  48#include "fpgadata_xl30.c"
  49};
  50
  51/*
  52 * include common fpga code (for esd boards)
  53 */
  54#include "../common/fpga.c"
  55
  56
  57int board_early_init_f (void)
  58{
  59        int index, len, i;
  60        int status;
  61
  62#ifdef FPGA_DEBUG
  63        /* set up serial port with default baudrate */
  64        (void) get_clocks ();
  65        gd->baudrate = CONFIG_BAUDRATE;
  66        serial_init ();
  67        console_init_f ();
  68#endif
  69
  70        /*
  71         * Boot onboard FPGA
  72         */
  73        /* first try 40er image */
  74        gd->board_type = 40;
  75        status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
  76        if (status != 0) {
  77                /* try xl30er image */
  78                gd->board_type = 30;
  79                status = fpga_boot ((unsigned char *) fpgadata_xl30, sizeof (fpgadata_xl30));
  80                if (status != 0) {
  81                        /* booting FPGA failed */
  82#ifndef FPGA_DEBUG
  83                        /* set up serial port with default baudrate */
  84                        (void) get_clocks ();
  85                        gd->baudrate = CONFIG_BAUDRATE;
  86                        serial_init ();
  87                        console_init_f ();
  88#endif
  89                        printf ("\nFPGA: Booting failed ");
  90                        switch (status) {
  91                        case ERROR_FPGA_PRG_INIT_LOW:
  92                                printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
  93                                break;
  94                        case ERROR_FPGA_PRG_INIT_HIGH:
  95                                printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
  96                                break;
  97                        case ERROR_FPGA_PRG_DONE:
  98                                printf ("(Timeout: DONE not high after programming FPGA)\n ");
  99                                break;
 100                        }
 101
 102                        /* display infos on fpgaimage */
 103                        index = 15;
 104                        for (i = 0; i < 4; i++) {
 105                                len = fpgadata[index];
 106                                printf ("FPGA: %s\n", &(fpgadata[index + 1]));
 107                                index += len + 3;
 108                        }
 109                        putc ('\n');
 110                        /* delayed reboot */
 111                        for (i = 20; i > 0; i--) {
 112                                printf ("Rebooting in %2d seconds \r", i);
 113                                for (index = 0; index < 1000; index++)
 114                                        udelay (1000);
 115                        }
 116                        putc ('\n');
 117                        do_reset (NULL, 0, 0, NULL);
 118                }
 119        }
 120
 121        /*
 122         * IRQ 0-15  405GP internally generated; active high; level sensitive
 123         * IRQ 16    405GP internally generated; active low; level sensitive
 124         * IRQ 17-24 RESERVED
 125         * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
 126         * IRQ 26 (EXT IRQ 1) CAN1; active low; level sensitive
 127         * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
 128         * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
 129         * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
 130         * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
 131         * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
 132         */
 133        mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
 134        mtdcr (UIC0ER, 0x00000000);     /* disable all ints */
 135        mtdcr (UIC0CR, 0x00000000);     /* set all to be non-critical */
 136        mtdcr (UIC0PR, 0xFFFFFF81);     /* set int polarities */
 137        mtdcr (UIC0TR, 0x10000000);     /* set int trigger levels */
 138        mtdcr (UIC0VCR, 0x00000001);    /* set vect base=0,INT0 highest priority */
 139        mtdcr (UIC0SR, 0xFFFFFFFF);     /* clear all ints */
 140
 141        out_be16((void *)0xf03000ec, 0x0fff); /* enable interrupts in fpga */
 142
 143        return 0;
 144}
 145
 146/*
 147 * Check Board Identity:
 148 */
 149int checkboard (void)
 150{
 151        int index;
 152        int len;
 153        char str[64];
 154        int i = getenv_f("serial#", str, sizeof (str));
 155        const unsigned char *fpga;
 156
 157        puts ("Board: ");
 158
 159        if (i == -1) {
 160                puts ("### No HW ID - assuming AR405");
 161        } else {
 162                puts(str);
 163        }
 164
 165        puts ("\nFPGA:  ");
 166
 167        /* display infos on fpgaimage */
 168        if (gd->board_type == 30) {
 169                fpga = fpgadata_xl30;
 170        } else {
 171                fpga = fpgadata;
 172        }
 173        index = 15;
 174        for (i = 0; i < 4; i++) {
 175                len = fpga[index];
 176                printf ("%s ", &(fpga[index + 1]));
 177                index += len + 3;
 178        }
 179
 180        putc ('\n');
 181
 182        /*
 183         * Disable sleep mode in LXT971
 184         */
 185        lxt971_no_sleep();
 186
 187        return 0;
 188}
 189
 190
 191#if 1 /* test-only: some internal test routines... */
 192#define DIGEN   ((void *)0xf03000b4) /* u8 */
 193#define DIGOUT  ((void *)0xf03000b0) /* u16 */
 194#define DIGIN   ((void *)0xf03000a0) /* u16 */
 195
 196/*
 197 * Some test routines
 198 */
 199int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 200{
 201        int i;
 202        int k;
 203        int start;
 204        int end;
 205
 206        if (argc != 3) {
 207                puts("Usage: digtest n_start n_end (digtest 0 7)\n");
 208                return 0;
 209        }
 210
 211        start = simple_strtol (argv[1], NULL, 10);
 212        end = simple_strtol (argv[2], NULL, 10);
 213
 214        /*
 215         * Enable digital outputs
 216         */
 217        out_8(DIGEN, 0x08);
 218
 219        printf("\nStarting digital In-/Out Test from I/O %d to %d (Cntrl-C to abort)...\n",
 220               start, end);
 221
 222        /*
 223         * Set outputs one by one
 224         */
 225        for (;;) {
 226                for (i=start; i<=end; i++) {
 227                        out_be16(DIGOUT, 0x0001 << i);
 228                        for (k=0; k<200; k++)
 229                                udelay(1000);
 230
 231                        if (in_be16(DIGIN) != (0x0001 << i)) {
 232                                printf("ERROR: OUT=0x%04X, IN=0x%04X\n",
 233                                       0x0001 << i, in_be16(DIGIN));
 234                                return 0;
 235                        }
 236
 237                        /* Abort if ctrl-c was pressed */
 238                        if (ctrlc()) {
 239                                puts("\nAbort\n");
 240                                return 0;
 241                        }
 242                }
 243        }
 244
 245        return 0;
 246}
 247U_BOOT_CMD(
 248        digtest,        3,      1,      do_digtest,
 249        "Test digital in-/output",
 250        ""
 251);
 252
 253#define ERROR_DELTA     256
 254
 255struct io {
 256        short val;
 257        short dummy;
 258};
 259
 260int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 261{
 262        short val;
 263        int i;
 264        int volt;
 265        struct io *out;
 266        struct io *in;
 267
 268        out = (struct io *)0xf0300090;
 269        in = (struct io *)0xf0300000;
 270
 271        i = simple_strtol (argv[1], NULL, 10);
 272
 273        volt = 0;
 274        printf("Setting Channel %d to %dV...\n", i, volt);
 275        out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 276        udelay(10000);
 277        val = in_be16((void *)&(in[i*2].val));
 278        printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 279        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 280            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 281                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 282                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 283                return -1;
 284        }
 285        val = in_be16((void *)&(in[i*2+1].val));
 286        printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 287        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 288            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 289                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 290                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 291                return -1;
 292        }
 293
 294        volt = 5;
 295        printf("Setting Channel %d to %dV...\n", i, volt);
 296        out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 297        udelay(10000);
 298        val = in_be16((void *)&(in[i*2].val));
 299        printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 300        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 301            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 302                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 303                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 304                return -1;
 305        }
 306        val = in_be16((void *)&(in[i*2+1].val));
 307        printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 308        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 309            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 310                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 311                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 312                return -1;
 313        }
 314
 315        volt = 10;
 316        printf("Setting Channel %d to %dV...\n", i, volt);
 317        out_be16((void *)&(out[i].val), (volt * 0x7fff) / 10);
 318        udelay(10000);
 319        val = in_be16((void *)&(in[i*2].val));
 320        printf("-> InChannel %d: 0x%04x=%dV\n", i*2, val, (val * 4000) / 0x7fff);
 321        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 322            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 323                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 324                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 325                return -1;
 326        }
 327        val = in_be16((void *)&(in[i*2+1].val));
 328        printf("-> InChannel %d: 0x%04x=%dV\n", i*2+1, val, (val * 4000) / 0x7fff);
 329        if ((val < ((volt * 0x7fff) / 40) - ERROR_DELTA) ||
 330            (val > ((volt * 0x7fff) / 40) + ERROR_DELTA)) {
 331                printf("ERROR! (min=0x%04x max=0x%04x)\n", ((volt * 0x7fff) / 40) - ERROR_DELTA,
 332                       ((volt * 0x7fff) / 40) + ERROR_DELTA);
 333                return -1;
 334        }
 335
 336        printf("Channel %d OK!\n", i);
 337
 338        return 0;
 339}
 340U_BOOT_CMD(
 341        anatest,        2,      1,      do_anatest,
 342        "Test analog in-/output",
 343        ""
 344);
 345
 346
 347int counter = 0;
 348
 349void cyclicInt(void *ptr)
 350{
 351        out_be16((void *)0xf03000e8, 0x0800); /* ack int */
 352        counter++;
 353}
 354
 355
 356int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 357{
 358        ulong *incin;
 359        int i;
 360
 361        incin = (ulong *)0xf0300040;
 362
 363        /*
 364         * Clear inc counter
 365         */
 366        out_be32((void *)&incin[0], 0);
 367        out_be32((void *)&incin[1], 0);
 368        out_be32((void *)&incin[2], 0);
 369        out_be32((void *)&incin[3], 0);
 370
 371        incin = (ulong *)0xf0300050;
 372
 373        /*
 374         * Inc a little
 375         */
 376        for (i=0; i<10000; i++) {
 377                switch (i & 0x03) {
 378                case 0:
 379                        out_8(DIGEN, 0x02);
 380                        break;
 381                case 1:
 382                        out_8(DIGEN, 0x03);
 383                        break;
 384                case 2:
 385                        out_8(DIGEN, 0x01);
 386                        break;
 387                case 3:
 388                        out_8(DIGEN, 0x00);
 389                        break;
 390                }
 391                udelay(10);
 392        }
 393
 394        printf("Inc 0 = %d\n", in_be32((void *)&incin[0]));
 395        printf("Inc 1 = %d\n", in_be32((void *)&incin[1]));
 396        printf("Inc 2 = %d\n", in_be32((void *)&incin[2]));
 397        printf("Inc 3 = %d\n", in_be32((void *)&incin[3]));
 398
 399        out_be16((void *)0xf03000e0, 0x0c80-1); /* set counter */
 400        out_be16((void *)0xf03000ec,
 401                 in_be16((void *)0xf03000ec) | 0x0800); /* enable int */
 402        irq_install_handler (30, (interrupt_handler_t *) cyclicInt, NULL);
 403        printf("counter=%d\n", counter);
 404
 405        return 0;
 406}
 407U_BOOT_CMD(
 408        inctest,        3,      1,      do_inctest,
 409        "Test incremental encoder inputs",
 410        ""
 411);
 412#endif
 413