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