board/tqm5200/cmd_stk52xx.c

   1 /*
   2  * (C) Copyright 2005
   3  * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de.
   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 /*
  25  * STK52XX specific functions
  26  */
  27 /*#define DEBUG*/
  28
  29 #include <common.h>
  30 #include <command.h>
  31
  32 #if (CONFIG_COMMANDS & CFG_CMD_BSP)
  33 #if defined (CONFIG_STK52XX)
  34
  35 #define DEFAULT_VOL     45
  36 #define DEFAULT_FREQ    500
  37 #define DEFAULT_DURATION        200
  38 #define LEFT            1
  39 #define RIGHT           2
  40 #define LEFT_RIGHT      3
  41 #define BL_OFF          0
  42 #define BL_ON           1
  43
  44 #define SM501_GPIO_CTRL_LOW             0x00000008UL
  45 #define SM501_GPIO_CTRL_HIGH            0x0000000CUL
  46 #define SM501_POWER_MODE0_GATE          0x00000040UL
  47 #define SM501_POWER_MODE1_GATE          0x00000048UL
  48 #define POWER_MODE_GATE_GPIO_PWM_I2C    0x00000040UL
  49 #define SM501_GPIO_DATA_LOW             0x00010000UL
  50 #define SM501_GPIO_DATA_HIGH            0x00010004UL
  51 #define SM501_GPIO_DATA_DIR_LOW         0x00010008UL
  52 #define SM501_GPIO_DATA_DIR_HIGH        0x0001000CUL
  53 #define SM501_PANEL_DISPLAY_CONTROL     0x00080000UL
  54
  55 static int i2s_squarewave(unsigned long duration, unsigned int freq,
  56                           unsigned int channel);
  57 static int i2s_sawtooth(unsigned long duration, unsigned int freq,
  58                         unsigned int channel);
  59 static void spi_init(void);
  60 static int spi_transmit(unsigned char data);
  61 static void pcm1772_write_reg(unsigned char addr, unsigned char data);
  62 static void set_attenuation(unsigned char attenuation);
  63
  64 static void spi_init(void)
  65 {
  66         struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
  67         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
  68
  69         /* PSC3 as SPI and GPIOs */
  70         gpio->port_config &= 0xFFFFF0FF;
  71         gpio->port_config |= 0x00000800;
  72         /*
  73          * Its important to use the correct order when initializing the
  74          * registers
  75          */
  76         spi->ddr = 0x0F; /* set all SPI pins as output */
  77         spi->pdr = 0x08; /* set SS high */
  78         spi->cr1 = 0x50; /* SPI is master, SS is general purpose output */
  79         spi->cr2 = 0x00; /* normal operation */
  80         spi->brr = 0xFF; /* baud rate: IPB clock / 2048 */
  81 }
  82
  83 static int spi_transmit(unsigned char data)
  84 {
  85         int dummy;
  86         struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
  87
  88         spi->dr = data;
  89         /* wait for SPI transmission completed */
  90         while(!(spi->sr & 0x80))
  91         {
  92                 if (spi->sr & 0x40)     /* if write collision occured */
  93                 {
  94                         /* do dummy read to clear status register */
  95                         dummy = spi->dr;
  96                         printf ("SPI write collision\n");
  97                         return -1;
  98                 }
  99         }
 100         return (spi->dr);
 101 }
 102
 103 static void pcm1772_write_reg(unsigned char addr, unsigned char data)
 104 {
 105         struct mpc5xxx_spi *spi = (struct mpc5xxx_spi*)MPC5XXX_SPI;
 106
 107         spi->pdr = 0x00; /* Set SS low */
 108         spi_transmit(addr);
 109         spi_transmit(data);
 110         /* wait some time to meet MS# hold time of PCM1772 */
 111         udelay (1);
 112         spi->pdr = 0x08; /* set SS high */
 113 }
 114
 115 static void set_attenuation(unsigned char attenuation)
 116 {
 117         pcm1772_write_reg(0x01, attenuation); /* left channel */
 118         debug ("PCM1772 attenuation left set to %d.\n", attenuation);
 119         pcm1772_write_reg(0x02, attenuation); /* right channel */
 120         debug ("PCM1772 attenuation right set to %d.\n", attenuation);
 121 }
 122
 123 void amplifier_init(void)
 124 {
 125         static int init_done = 0;
 126         int i;
 127         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
 128
 129         /* Do this only once, because of the long time delay */
 130         if (!init_done) {
 131                 /* configure PCM1772 audio format as I2S */
 132                 pcm1772_write_reg(0x03, 0x01);
 133                 /* enable audio amplifier */
 134                 gpio->sint_gpioe |=  0x02;      /* PSC3_5 as GPIO */
 135                 gpio->sint_ode &= ~0x02;        /* PSC3_5 is not open Drain */
 136                 gpio->sint_dvo &= ~0x02;        /* PSC3_5 is LOW */
 137                 gpio->sint_ddr |=  0x02;        /* PSC3_5 as output */
 138                 /*
 139                  * wait some time to allow amplifier to recover from shutdown
 140                  * mode.
 141                  */
 142                 for(i = 0; i < 350; i++)
 143                         udelay(1000);
 144                 /*
 145                  * The used amplifier (LM4867) has a so called "pop and click"
 146                  * elmination filter. The input signal of the amplifier must
 147                  * exceed a certain level once after power up to activate the
 148                  * generation of the output signal. This is achieved by
 149                  * sending a low frequent (nearly inaudible) sawtooth with a
 150                  * sufficient signal level.
 151                  */
 152                 set_attenuation(50);
 153                 i2s_sawtooth (200, 5, LEFT_RIGHT);
 154                 init_done = 1;
 155         }
 156 }
 157
 158 static void i2s_init(void)
 159 {
 160         unsigned long i;
 161         struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;;
 162         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
 163
 164         gpio->port_config |= 0x00000070; /* PSC2 ports as Codec with MCLK */
 165         psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
 166         psc->sicr = 0x22E00000;         /* 16 bit data; I2S */
 167
 168         *(vu_long *)(CFG_MBAR + 0x22C) = 0x805d; /* PSC2 CDM MCLK config; MCLK
 169                                                   * 5.617 MHz */
 170         *(vu_long *)(CFG_MBAR + 0x214) |= 0x00000040; /* CDM clock enable
 171                                                        * register */
 172         psc->ccr = 0x1F03;      /* 16 bit data width; 5.617MHz MCLK */
 173         psc->ctur = 0x0F;       /* 16 bit frame width */
 174
 175         for(i=0;i<128;i++)
 176         {
 177                 psc->psc_buffer_32 = 0; /* clear tx fifo */
 178         }
 179 }
 180
 181 static int i2s_play_wave(unsigned long addr, unsigned long len)
 182 {
 183         unsigned long i;
 184         unsigned char *wave_file = (uchar *)addr + 44;  /* quick'n dirty: skip
 185                                                          * wav header*/
 186         unsigned char swapped[4];
 187         struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
 188
 189         /*
 190          * play wave file in memory; bytes/words are be swapped
 191          */
 192         psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
 193
 194         for(i = 0;i < (len / 4); i++) {
 195                 swapped[3]=*wave_file++;
 196                 swapped[2]=*wave_file++;
 197                 swapped[1]=*wave_file++;
 198                 swapped[0]=*wave_file++;
 199                 psc->psc_buffer_32 =  *((unsigned long*)swapped);
 200                 while (psc->tfnum > 400) {
 201                         if(ctrlc())
 202                                 return 0;
 203                 }
 204         }
 205         while (psc->tfnum > 0);         /* wait for fifo empty */
 206         udelay (100);
 207         psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
 208         return 0;
 209 }
 210
 211 static int i2s_sawtooth(unsigned long duration, unsigned int freq,
 212                         unsigned int channel)
 213 {
 214         long i,j;
 215         unsigned long data;
 216         struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
 217
 218         psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
 219
 220         /*
 221          * Generate sawtooth. Start with middle level up to highest level. Then
 222          * go to lowest level and back to middle level.
 223          */
 224         for(j = 0; j < ((duration * freq) / 1000); j++) {
 225                 for(i = 0; i <= 0x7FFF; i += (0x7FFF/(44100/(freq*4)))) {
 226                         data = (i & 0xFFFF);
 227                         /* data format: right data left data) */
 228                         if (channel == LEFT_RIGHT)
 229                                 data |= (data<<16);
 230                         if (channel == RIGHT)
 231                                 data = (data<<16);
 232                         psc->psc_buffer_32 = data;
 233                         while (psc->tfnum > 400);
 234                 }
 235                 for(i = 0x7FFF; i >= -0x7FFF; i -= (0xFFFF/(44100/(freq*2)))) {
 236                         data = (i & 0xFFFF);
 237                         /* data format: right data left data) */
 238                         if (channel == LEFT_RIGHT)
 239                                 data |= (data<<16);
 240                         if (channel == RIGHT)
 241                                 data = (data<<16);
 242                         psc->psc_buffer_32 = data;
 243                         while (psc->tfnum > 400);
 244                 }
 245                 for(i = -0x7FFF; i <= 0; i += (0x7FFF/(44100/(freq*4)))) {
 246                         data = (i & 0xFFFF);
 247                         /* data format: right data left data) */
 248                         if (channel == LEFT_RIGHT)
 249                                 data |= (data<<16);
 250                         if (channel == RIGHT)
 251                                 data = (data<<16);
 252                         psc->psc_buffer_32 = data;
 253                         while (psc->tfnum > 400);
 254                 }
 255         }
 256         while (psc->tfnum > 0);         /* wait for fifo empty */
 257         udelay (100);
 258         psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
 259
 260         return 0;
 261 }
 262
 263 static int i2s_squarewave(unsigned long duration, unsigned int freq,
 264                          unsigned int channel)
 265 {
 266         long i,j;
 267         unsigned long data;
 268         struct mpc5xxx_psc *psc = (struct mpc5xxx_psc*)MPC5XXX_PSC2;
 269
 270         psc->command = (PSC_RX_ENABLE | PSC_TX_ENABLE);
 271
 272         /*
 273          * Generate sqarewave. Start with high level, duty cycle 1:1.
 274          */
 275         for(j = 0; j < ((duration * freq) / 1000); j++) {
 276                 for(i = 0; i < (44100/(freq*2)); i ++) {
 277                         data = 0x7FFF;
 278                         /* data format: right data left data) */
 279                         if (channel == LEFT_RIGHT)
 280                                 data |= (data<<16);
 281                         if (channel == RIGHT)
 282                                 data = (data<<16);
 283                         psc->psc_buffer_32 = data;
 284                         while (psc->tfnum > 400);
 285                 }
 286                 for(i = 0; i < (44100/(freq*2)); i ++) {
 287                         data = 0x8000;
 288                         /* data format: right data left data) */
 289                         if (channel == LEFT_RIGHT)
 290                                 data |= (data<<16);
 291                         if (channel == RIGHT)
 292                                 data = (data<<16);
 293                         psc->psc_buffer_32 = data;
 294                         while (psc->tfnum > 400);
 295                 }
 296         }
 297         while (psc->tfnum > 0);         /* wait for fifo empty */
 298         udelay (100);
 299         psc->command = (PSC_RX_DISABLE | PSC_TX_DISABLE);
 300
 301         return 0;
 302 }
 303
 304 static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 305 {
 306         unsigned long reg, val, duration;
 307         char *tmp;
 308         unsigned int freq, channel;
 309         unsigned char volume;
 310         int rcode = 1;
 311
 312 #ifdef CONFIG_STK52XX_REV100
 313         printf ("Revision 100 of STK52XX not supported!\n");
 314         return 1;
 315 #endif
 316         spi_init();
 317         i2s_init();
 318         amplifier_init();
 319
 320         if ((tmp = getenv ("volume")) != NULL) {
 321                 volume = simple_strtoul (tmp, NULL, 10);
 322         } else {
 323                 volume = DEFAULT_VOL;
 324         }
 325         set_attenuation(volume);
 326
 327         switch (argc) {
 328         case 0:
 329         case 1:
 330                 printf ("Usage:\n%s\n", cmdtp->usage);
 331                 return 1;
 332         case 2:
 333                 if (strncmp(argv[1],"saw",3) == 0) {
 334                         printf ("Play sawtooth\n");
 335                         rcode = i2s_sawtooth (DEFAULT_DURATION, DEFAULT_FREQ,
 336                                               LEFT_RIGHT);
 337                         return rcode;
 338                 } else if (strncmp(argv[1],"squ",3) == 0) {
 339                         printf ("Play squarewave\n");
 340                         rcode = i2s_squarewave (DEFAULT_DURATION, DEFAULT_FREQ,
 341                                                 LEFT_RIGHT);
 342                         return rcode;
 343                 }
 344
 345                 printf ("Usage:\n%s\n", cmdtp->usage);
 346                 return 1;
 347         case 3:
 348                 if (strncmp(argv[1],"saw",3) == 0) {
 349                         duration = simple_strtoul(argv[2], NULL, 10);
 350                         printf ("Play sawtooth\n");
 351                         rcode = i2s_sawtooth (duration, DEFAULT_FREQ,
 352                                               LEFT_RIGHT);
 353                         return rcode;
 354                 } else if (strncmp(argv[1],"squ",3) == 0) {
 355                         duration = simple_strtoul(argv[2], NULL, 10);
 356                         printf ("Play squarewave\n");
 357                         rcode = i2s_squarewave (duration, DEFAULT_FREQ,
 358                                                 LEFT_RIGHT);
 359                         return rcode;
 360                 }
 361                 printf ("Usage:\n%s\n", cmdtp->usage);
 362                 return 1;
 363         case 4:
 364                 if (strncmp(argv[1],"saw",3) == 0) {
 365                         duration = simple_strtoul(argv[2], NULL, 10);
 366                         freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
 367                         printf ("Play sawtooth\n");
 368                         rcode = i2s_sawtooth (duration, freq,
 369                                               LEFT_RIGHT);
 370                         return rcode;
 371                 } else if (strncmp(argv[1],"squ",3) == 0) {
 372                         duration = simple_strtoul(argv[2], NULL, 10);
 373                         freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
 374                         printf ("Play squarewave\n");
 375                         rcode = i2s_squarewave (duration, freq,
 376                                                 LEFT_RIGHT);
 377                         return rcode;
 378                 } else if (strcmp(argv[1],"pcm1772") == 0) {
 379                         reg = simple_strtoul(argv[2], NULL, 10);
 380                         val = simple_strtoul(argv[3], NULL, 10);
 381                         printf("Set PCM1772 %lu. %lu\n", reg, val);
 382                         pcm1772_write_reg((uchar)reg, (uchar)val);
 383                         return 0;
 384                 }
 385                 printf ("Usage:\n%s\n", cmdtp->usage);
 386                 return 1;
 387         case 5:
 388                 if (strncmp(argv[1],"saw",3) == 0) {
 389                         duration = simple_strtoul(argv[2], NULL, 10);
 390                         freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
 391                         if (strncmp(argv[4],"l",1) == 0)
 392                                 channel = LEFT;
 393                         else if (strncmp(argv[4],"r",1) == 0)
 394                                 channel = RIGHT;
 395                         else
 396                                 channel = LEFT_RIGHT;
 397                         printf ("Play squarewave\n");
 398                         rcode = i2s_sawtooth (duration, freq,
 399                                               channel);
 400                         return rcode;
 401                 } else if (strncmp(argv[1],"squ",3) == 0) {
 402                         duration = simple_strtoul(argv[2], NULL, 10);
 403                         freq = (unsigned int)simple_strtoul(argv[3], NULL, 10);
 404                         if (strncmp(argv[4],"l",1) == 0)
 405                                 channel = LEFT;
 406                         else if (strncmp(argv[4],"r",1) == 0)
 407                                 channel = RIGHT;
 408                         else
 409                                 channel = LEFT_RIGHT;
 410                         printf ("Play squarewave\n");
 411                         rcode = i2s_squarewave (duration, freq,
 412                                                 channel);
 413                         return rcode;
 414                 }
 415                 printf ("Usage:\n%s\n", cmdtp->usage);
 416                 return 1;
 417         }
 418         printf ("Usage:\nsound cmd [arg1] [arg2] ...\n");
 419         return 1;
 420 }
 421
 422 static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 423 {
 424         unsigned long length, addr;
 425         unsigned char volume;
 426         int rcode = 1;
 427         char *tmp;
 428
 429 #ifdef CONFIG_STK52XX_REV100
 430         printf ("Revision 100 of STK52XX not supported!\n");
 431         return 1;
 432 #endif
 433         spi_init();
 434         i2s_init();
 435         amplifier_init();
 436
 437         switch (argc) {
 438
 439         case 3:
 440                 length = simple_strtoul(argv[2], NULL, 16);
 441                 addr = simple_strtoul(argv[1], NULL, 16);
 442                 break;
 443
 444         case 2:
 445                 if ((tmp = getenv ("filesize")) != NULL) {
 446                         length = simple_strtoul (tmp, NULL, 16);
 447                 } else {
 448                         puts ("No filesize provided\n");
 449                         return 1;
 450                 }
 451                 addr = simple_strtoul(argv[1], NULL, 16);
 452
 453         case 1:
 454                 if ((tmp = getenv ("filesize")) != NULL) {
 455                         length = simple_strtoul (tmp, NULL, 16);
 456                 } else {
 457                         puts ("No filesize provided\n");
 458                         return 1;
 459                 }
 460                 if ((tmp = getenv ("loadaddr")) != NULL) {
 461                         addr = simple_strtoul (tmp, NULL, 16);
 462                 } else {
 463                         puts ("No loadaddr provided\n");
 464                         return 1;
 465                 }
 466                 break;
 467
 468         default:
 469                 printf("Usage:\nwav <addr> <length[s]\n");
 470                 return 1;
 471                 break;
 472         }
 473
 474         if ((tmp = getenv ("volume")) != NULL) {
 475                 volume = simple_strtoul (tmp, NULL, 10);
 476         } else {
 477                 volume = DEFAULT_VOL;
 478         }
 479         set_attenuation(volume);
 480
 481         printf("Play wave file at %#p with length %#x\n", addr, length);
 482         rcode = i2s_play_wave(addr, length);
 483
 484         return rcode;
 485 }
 486
 487 static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 488 {
 489         unsigned char volume;
 490         unsigned int channel;
 491         int rcode;
 492         char *tmp;
 493
 494 #ifdef CONFIG_STK52XX_REV100
 495         printf ("Revision 100 of STK52XX not supported!\n");
 496         return 1;
 497 #endif
 498         spi_init();
 499         i2s_init();
 500         amplifier_init();
 501
 502         switch (argc) {
 503         case 0:
 504         case 1:
 505                 channel = LEFT_RIGHT;
 506                 break;
 507         case 2:
 508                 if (strncmp(argv[1],"l",1) == 0)
 509                         channel = LEFT;
 510                 else if (strncmp(argv[1],"r",1) == 0)
 511                         channel = RIGHT;
 512                 else
 513                         channel = LEFT_RIGHT;
 514                 break;
 515         default:
 516                 printf ("Usage:\n%s\n", cmdtp->usage);
 517                 return 1;
 518         }
 519
 520         if ((tmp = getenv ("volume")) != NULL) {
 521                 volume = simple_strtoul (tmp, NULL, 10);
 522         } else {
 523                 volume = DEFAULT_VOL;
 524         }
 525         set_attenuation(volume);
 526
 527         printf("Beep on ");
 528         if (channel == LEFT)
 529                 printf ("left ");
 530         else if (channel == RIGHT)
 531                 printf ("right ");
 532         else
 533                 printf ("left and right ");
 534         printf ("channel\n");
 535
 536         rcode = i2s_squarewave (DEFAULT_DURATION, DEFAULT_FREQ, channel);
 537
 538         return rcode;
 539 }
 540
 541 void led_init(void)
 542 {
 543         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 544         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
 545
 546         /* configure PSC3 for SPI and GPIO */
 547         gpio->port_config &= ~(0x00000F00);
 548         gpio->port_config |=   0x00000800;
 549
 550         gpio->simple_gpioe &= ~(0x00000F00);
 551         gpio->simple_gpioe |=   0x00000F00;
 552
 553         gpio->simple_ddr &= ~(0x00000F00);
 554         gpio->simple_ddr |=   0x00000F00;
 555
 556         /* configure timer 4-7 for simple GPIO output */
 557         gpt->gpt4.emsr |=  0x00000024;
 558         gpt->gpt5.emsr |=  0x00000024;
 559         gpt->gpt6.emsr |=  0x00000024;
 560         gpt->gpt7.emsr |=  0x00000024;
 561
 562
 563         /* enable SM501 GPIO control (in both power modes) */
 564         *(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE0_GATE) |=
 565                 POWER_MODE_GATE_GPIO_PWM_I2C;
 566         *(vu_long *) (SM501_MMIO_BASE+SM501_POWER_MODE1_GATE) |=
 567                 POWER_MODE_GATE_GPIO_PWM_I2C;
 568
 569         /* configure SM501 gpio pins 24-27 as output */
 570         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_CTRL_LOW) &= ~(0xF << 24);
 571         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_LOW) |= (0xF << 24);
 572
 573         /* configure SM501 gpio pins 48-51 as output */
 574         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_HIGH) |= (0xF << 16);
 575 }
 576
 577 /*
 578  * return 1 if led number unknown
 579  * return 0 else
 580  */
 581 int do_led(char *argv[])
 582 {
 583         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 584         struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
 585
 586         switch  (simple_strtoul(argv[2], NULL, 10)) {
 587
 588         case 0:
 589                 if (strcmp (argv[3], "on") == 0) {
 590                         gpio->simple_dvo |=   (1 << 8);
 591                 } else {
 592                         gpio->simple_dvo &= ~(1 << 8);
 593                 }
 594                 break;
 595
 596         case 1:
 597                 if (strcmp (argv[3], "on") == 0) {
 598                         gpio->simple_dvo |=   (1 << 9);
 599                 } else {
 600                         gpio->simple_dvo &= ~(1 << 9);
 601                 }
 602                 break;
 603
 604         case 2:
 605                 if (strcmp (argv[3], "on") == 0) {
 606                         gpio->simple_dvo |=   (1 << 10);
 607                 } else {
 608                         gpio->simple_dvo &= ~(1 << 10);
 609                 }
 610                 break;
 611
 612         case 3:
 613                 if (strcmp (argv[3], "on") == 0) {
 614                         gpio->simple_dvo |=   (1 << 11);
 615                 } else {
 616                         gpio->simple_dvo &= ~(1 << 11);
 617                 }
 618                 break;
 619
 620         case 4:
 621                 if (strcmp (argv[3], "on") == 0) {
 622                         gpt->gpt4.emsr |=  (1 << 4);
 623                 } else {
 624                         gpt->gpt4.emsr &=  ~(1 << 4);
 625                 }
 626                 break;
 627
 628         case 5:
 629                 if (strcmp (argv[3], "on") == 0) {
 630                         gpt->gpt5.emsr |=  (1 << 4);
 631                 } else {
 632                         gpt->gpt5.emsr &=  ~(1 << 4);
 633                 }
 634                 break;
 635
 636         case 6:
 637                 if (strcmp (argv[3], "on") == 0) {
 638                         gpt->gpt6.emsr |=  (1 << 4);
 639                 } else {
 640                         gpt->gpt6.emsr &=  ~(1 << 4);
 641                 }
 642                 break;
 643
 644         case 7:
 645                 if (strcmp (argv[3], "on") == 0) {
 646                         gpt->gpt7.emsr |=  (1 << 4);
 647                 } else {
 648                         gpt->gpt7.emsr &=  ~(1 << 4);
 649                 }
 650                 break;
 651
 652         case 24:
 653                 if (strcmp (argv[3], "on") == 0) {
 654                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
 655                                 (0x1 << 24);
 656                 } else {
 657                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
 658                                 ~(0x1 << 24);
 659                 }
 660                 break;
 661
 662         case 25:
 663                 if (strcmp (argv[3], "on") == 0) {
 664                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
 665                                 (0x1 << 25);
 666                 } else {
 667                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
 668                                 ~(0x1 << 25);
 669                 }
 670                 break;
 671
 672         case 26:
 673                 if (strcmp (argv[3], "on") == 0) {
 674                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
 675                                 (0x1 << 26);
 676                 } else {
 677                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
 678                                 ~(0x1 << 26);
 679                 }
 680                 break;
 681
 682         case 27:
 683                 if (strcmp (argv[3], "on") == 0) {
 684                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) |=
 685                                 (0x1 << 27);
 686                 } else {
 687                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_LOW) &=
 688                                 ~(0x1 << 27);
 689                 }
 690                 break;
 691
 692         case 48:
 693                 if (strcmp (argv[3], "on") == 0) {
 694                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
 695                                 (0x1 << 16);
 696                 } else {
 697                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
 698                                 ~(0x1 << 16);
 699                 }
 700                 break;
 701
 702         case 49:
 703                 if (strcmp (argv[3], "on") == 0) {
 704                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
 705                                 (0x1 << 17);
 706                 } else {
 707                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
 708                                 ~(0x1 << 17);
 709                 }
 710                 break;
 711
 712         case 50:
 713                 if (strcmp (argv[3], "on") == 0) {
 714                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
 715                                 (0x1 << 18);
 716                 } else {
 717                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
 718                                 ~(0x1 << 18);
 719                 }
 720                 break;
 721
 722         case 51:
 723                 if (strcmp (argv[3], "on") == 0) {
 724                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
 725                                 (0x1 << 19);
 726                 } else {
 727                         *(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
 728                                 ~(0x1 << 19);
 729                 }
 730                 break;
 731
 732         default:
 733                 printf ("%s: invalid led number %s\n", __FUNCTION__, argv[2]);
 734                 return 1;
 735         }
 736
 737         return 0;
 738 }
 739
 740 /*
 741  * return 1 on CAN initialization failure
 742  * return 0 if no failure
 743  */
 744 int can_init(void)
 745 {
 746         static int init_done = 0;
 747         int i;
 748         struct mpc5xxx_mscan *can1 =
 749                 (struct mpc5xxx_mscan *)(CFG_MBAR + 0x0900);
 750         struct mpc5xxx_mscan *can2 =
 751                 (struct mpc5xxx_mscan *)(CFG_MBAR + 0x0980);
 752
 753         /* GPIO configuration of the CAN pins is done in TQM5200.h */
 754
 755         if (!init_done) {
 756                 /* init CAN 1 */
 757                 can1->canctl1 |= 0x80;  /* CAN enable */
 758                 udelay(100);
 759
 760                 i = 0;
 761                 can1->canctl0 |= 0x02;  /* sleep mode */
 762                 /* wait until sleep mode reached */
 763                 while (!(can1->canctl1 & 0x02)) {
 764                         udelay(10);
 765                 i++;
 766                 if (i == 10) {
 767                         printf ("%s: CAN1 initialize error, "
 768                                 "can not enter sleep mode!\n",
 769                                 __FUNCTION__);
 770                         return 1;
 771                 }
 772                 }
 773                 i = 0;
 774                 can1->canctl0 = 0x01;   /* enter init mode */
 775                 /* wait until init mode reached */
 776                 while (!(can1->canctl1 & 0x01)) {
 777                         udelay(10);
 778                         i++;
 779                         if (i == 10) {
 780                                 printf ("%s: CAN1 initialize error, "
 781                                         "can not enter init mode!\n",
 782                                         __FUNCTION__);
 783                                 return 1;
 784                         }
 785                 }
 786                 can1->canctl1 = 0x80;
 787                 can1->canctl1 |= 0x40;
 788                 can1->canbtr0 = 0x0F;
 789                 can1->canbtr1 = 0x7F;
 790                 can1->canidac &= ~(0x30);
 791                 can1->canidar1 = 0x00;
 792                 can1->canidar3 = 0x00;
 793                 can1->canidar5 = 0x00;
 794                 can1->canidar7 = 0x00;
 795                 can1->canidmr0 = 0xFF;
 796                 can1->canidmr1 = 0xFF;
 797                 can1->canidmr2 = 0xFF;
 798                 can1->canidmr3 = 0xFF;
 799                 can1->canidmr4 = 0xFF;
 800                 can1->canidmr5 = 0xFF;
 801                 can1->canidmr6 = 0xFF;
 802                 can1->canidmr7 = 0xFF;
 803
 804                 i = 0;
 805                 can1->canctl0 &= ~(0x01);       /* leave init mode */
 806                 can1->canctl0 &= ~(0x02);
 807                 /* wait until init and sleep mode left */
 808                 while ((can1->canctl1 & 0x01) || (can1->canctl1 & 0x02)) {
 809                         udelay(10);
 810                         i++;
 811                         if (i == 10) {
 812                                 printf ("%s: CAN1 initialize error, "
 813                                         "can not leave init/sleep mode!\n",
 814                                         __FUNCTION__);
 815                                 return 1;
 816                         }
 817                 }
 818
 819                 /* init CAN 2 */
 820                 can2->canctl1 |= 0x80;  /* CAN enable */
 821                 udelay(100);
 822
 823                 i = 0;
 824                 can2->canctl0 |= 0x02;  /* sleep mode */
 825                 /* wait until sleep mode reached */
 826                 while (!(can2->canctl1 & 0x02)) {
 827                         udelay(10);
 828                         i++;
 829                         if (i == 10) {
 830                                 printf ("%s: CAN2 initialize error, "
 831                                         "can not enter sleep mode!\n",
 832                                         __FUNCTION__);
 833                                 return 1;
 834                         }
 835                 }
 836                 i = 0;
 837                 can2->canctl0 = 0x01;   /* enter init mode */
 838                 /* wait until init mode reached */
 839                 while (!(can2->canctl1 & 0x01)) {
 840                         udelay(10);
 841                         i++;
 842                         if (i == 10) {
 843                                 printf ("%s: CAN2 initialize error, "
 844                                         "can not enter init mode!\n",
 845                                         __FUNCTION__);
 846                                 return 1;
 847                         }
 848                 }
 849                 can2->canctl1 = 0x80;
 850                 can2->canctl1 |= 0x40;
 851                 can2->canbtr0 = 0x0F;
 852                 can2->canbtr1 = 0x7F;
 853                 can2->canidac &= ~(0x30);
 854                 can2->canidar1 = 0x00;
 855                 can2->canidar3 = 0x00;
 856                 can2->canidar5 = 0x00;
 857                 can2->canidar7 = 0x00;
 858                 can2->canidmr0 = 0xFF;
 859                 can2->canidmr1 = 0xFF;
 860                 can2->canidmr2 = 0xFF;
 861                 can2->canidmr3 = 0xFF;
 862                 can2->canidmr4 = 0xFF;
 863                 can2->canidmr5 = 0xFF;
 864                 can2->canidmr6 = 0xFF;
 865                 can2->canidmr7 = 0xFF;
 866                 can2->canctl0 &= ~(0x01);       /* leave init mode */
 867                 can2->canctl0 &= ~(0x02);
 868
 869                 i = 0;
 870                 /* wait until init mode left */
 871                 while ((can2->canctl1 & 0x01) || (can2->canctl1 & 0x02)) {
 872                         udelay(10);
 873                         i++;
 874                         if (i == 10) {
 875                                 printf ("%s: CAN2 initialize error, "
 876                                         "can not leave init/sleep mode!\n",
 877                                         __FUNCTION__);
 878                                 return 1;
 879                         }
 880                 }
 881                 init_done = 1;
 882         }
 883         return 0;
 884 }
 885
 886 /*
 887  * return 1 on CAN failure
 888  * return 0 if no failure
 889  */
 890 int do_can(char *argv[])
 891 {
 892         int i;
 893         struct mpc5xxx_mscan *can1 =
 894                 (struct mpc5xxx_mscan *)(CFG_MBAR + 0x0900);
 895         struct mpc5xxx_mscan *can2 =
 896                 (struct mpc5xxx_mscan *)(CFG_MBAR + 0x0980);
 897
 898         /* send a message on CAN1 */
 899         can1->cantbsel = 0x01;
 900         can1->cantxfg.idr[0] = 0x55;
 901         can1->cantxfg.idr[1] = 0x00;
 902         can1->cantxfg.idr[1] &= ~0x8;
 903         can1->cantxfg.idr[1] &= ~0x10;
 904         can1->cantxfg.dsr[0] = 0xCC;
 905         can1->cantxfg.dlr = 1;
 906         can1->cantxfg.tbpr = 0;
 907         can1->cantflg = 0x01;
 908
 909         i = 0;
 910         while ((can1->cantflg & 0x01) == 0) {
 911                 i++;
 912                 if (i == 10) {
 913                         printf ("%s: CAN1 send timeout, "
 914                                 "can not send message!\n",
 915                                 __FUNCTION__);
 916                         return 1;
 917                 }
 918                 udelay(1000);
 919         }
 920         udelay(1000);
 921
 922         i = 0;
 923         while (!(can2->canrflg & 0x01)) {
 924                 i++;
 925                 if (i == 10) {
 926                         printf ("%s: CAN2 receive timeout, "
 927                                 "no message received!\n",
 928                                 __FUNCTION__);
 929                         return 1;
 930                 }
 931                 udelay(1000);
 932         }
 933
 934         if (can2->canrxfg.dsr[0] != 0xCC) {
 935                 printf ("%s: CAN2 receive error, "
 936                          "data mismatch!\n",
 937                         __FUNCTION__);
 938                 return 1;
 939         }
 940
 941         /* send a message on CAN2 */
 942         can2->cantbsel = 0x01;
 943         can2->cantxfg.idr[0] = 0x55;
 944         can2->cantxfg.idr[1] = 0x00;
 945         can2->cantxfg.idr[1] &= ~0x8;
 946         can2->cantxfg.idr[1] &= ~0x10;
 947         can2->cantxfg.dsr[0] = 0xCC;
 948         can2->cantxfg.dlr = 1;
 949         can2->cantxfg.tbpr = 0;
 950         can2->cantflg = 0x01;
 951
 952         i = 0;
 953         while ((can2->cantflg & 0x01) == 0) {
 954                 i++;
 955                 if (i == 10) {
 956                         printf ("%s: CAN2 send error, "
 957                                 "can not send message!\n",
 958                                 __FUNCTION__);
 959                         return 1;
 960                 }
 961                 udelay(1000);
 962         }
 963         udelay(1000);
 964
 965         i = 0;
 966         while (!(can1->canrflg & 0x01)) {
 967                 i++;
 968                 if (i == 10) {
 969                         printf ("%s: CAN1 receive timeout, "
 970                                 "no message received!\n",
 971                                 __FUNCTION__);
 972                         return 1;
 973                 }
 974                 udelay(1000);
 975         }
 976
 977         if (can1->canrxfg.dsr[0] != 0xCC) {
 978                 printf ("%s: CAN1 receive error 0x%02x\n",
 979                         __FUNCTION__, (can1->canrxfg.dsr[0]));
 980                 return 1;
 981         }
 982
 983         return 0;
 984 }
 985
 986 /*
 987  * return 1 if rs232 port unknown
 988  * return 2 on txd/rxd failure (only rs232 2)
 989  * return 3 on rts/cts failure
 990  * return 0 if no failure
 991  */
 992 int do_rs232(char *argv[])
 993 {
 994         int error_status = 0;
 995         struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 996         struct mpc5xxx_psc *psc1 = (struct mpc5xxx_psc *)MPC5XXX_PSC1;
 997
 998         switch  (simple_strtoul(argv[2], NULL, 10)) {
 999
1000         case 1:
1001                 /* check RTS <-> CTS loop */
1002                 /* set rts to 0 */
1003                 psc1->op1 |= 0x01;
1004
1005                 /* wait some time before requesting status */
1006                 udelay(10);
1007
1008                 /* check status at cts */
1009                 if ((psc1->ip & 0x01) != 0) {
1010                         error_status = 3;
1011                         printf ("%s: failure at rs232_1, cts status is %d "
1012                                 "(should be 0)\n",
1013                                 __FUNCTION__, (psc1->ip & 0x01));
1014                 }
1015
1016                 /* set rts to 1 */
1017                 psc1->op0 |= 0x01;
1018
1019                 /* wait some time before requesting status */
1020                 udelay(10);
1021
1022                 /* check status at cts */
1023                 if ((psc1->ip & 0x01) != 1) {
1024                         error_status = 3;
1025                         printf ("%s: failure at rs232_1, cts status is %d "
1026                                 "(should be 1)\n",
1027                                 __FUNCTION__, (psc1->ip & 0x01));
1028                 }
1029
1030                 break;
1031
1032         case 2:
1033                 /* set PSC3_0, PSC3_2 as output and PSC3_1, PSC3_3 as input */
1034                 gpio->simple_ddr &= ~(0x00000F00);
1035                 gpio->simple_ddr |=   0x00000500;
1036
1037                 /* check TXD <-> RXD loop */
1038                 /* set TXD to 1 */
1039                 gpio->simple_dvo |=   (1 << 8);
1040
1041                 /* wait some time before requesting status */
1042                 udelay(10);
1043
1044                 if ((gpio->simple_ival & 0x00000200) != 0x00000200) {
1045                         error_status = 2;
1046                         printf ("%s: failure at rs232_2, rxd status is %d "
1047                                 "(should be 1)\n",
1048                                 __FUNCTION__,
1049                                 (gpio->simple_ival & 0x00000200) >> 9);
1050                 }
1051
1052                 /* set TXD to 0 */
1053                 gpio->simple_dvo &= ~(1 << 8);
1054
1055                 /* wait some time before requesting status */
1056                 udelay(10);
1057
1058                 if ((gpio->simple_ival & 0x00000200) != 0x00000000) {
1059                         error_status = 2;
1060                         printf ("%s: failure at rs232_2, rxd status is %d "
1061                                 "(should be 0)\n",
1062                                 __FUNCTION__,
1063                                 (gpio->simple_ival & 0x00000200) >> 9);
1064                 }
1065
1066                 /* check RTS <-> CTS loop */
1067                 /* set RTS to 1 */
1068                 gpio->simple_dvo |=   (1 << 10);
1069
1070                 /* wait some time before requesting status */
1071                 udelay(10);
1072
1073                 if ((gpio->simple_ival & 0x00000800) != 0x00000800) {
1074                         error_status = 3;
1075                         printf ("%s: failure at rs232_2, cts status is %d "
1076                                 "(should be 1)\n",
1077                                 __FUNCTION__,
1078                                 (gpio->simple_ival & 0x00000800) >> 11);
1079                 }
1080
1081                 /* set RTS to 0 */
1082                 gpio->simple_dvo &= ~(1 << 10);
1083
1084                 /* wait some time before requesting status */
1085                 udelay(10);
1086
1087                 if ((gpio->simple_ival & 0x00000800) != 0x00000000) {
1088                         error_status = 3;
1089                         printf ("%s: failure at rs232_2, cts status is %d "
1090                                 "(should be 0)\n",
1091                                 __FUNCTION__,
1092                                 (gpio->simple_ival & 0x00000800) >> 11);
1093                 }
1094
1095                 /* set PSC3_0, PSC3_1, PSC3_2 and PSC3_3 as output */
1096                 gpio->simple_ddr &= ~(0x00000F00);
1097                 gpio->simple_ddr |=   0x00000F00;
1098                 break;
1099
1100         default:
1101                 printf ("%s: invalid rs232 number %s\n", __FUNCTION__, argv[2]);
1102                 error_status = 1;
1103                 break;
1104         }
1105
1106         return error_status;
1107 }
1108
1109 static void sm501_backlight (unsigned int state)
1110 {
1111         if (state == BL_ON) {
1112                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) |=
1113                         (1 << 26) | (1 << 27);
1114         } else if (state == BL_OFF)
1115                 *(vu_long *)(SM501_MMIO_BASE+SM501_PANEL_DISPLAY_CONTROL) &=
1116                         ~((1 << 26) | (1 << 27));
1117 }
1118
1119 int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1120 {
1121         int rcode;
1122
1123 #ifdef CONFIG_STK52XX_REV100
1124         printf ("Revision 100 of STK52XX not supported!\n");
1125         return 1;
1126 #endif
1127         led_init();
1128         can_init();
1129
1130         switch (argc) {
1131
1132         case 0:
1133         case 1:
1134                 break;
1135
1136         case 2:
1137                 if (strncmp (argv[1], "can", 3) == 0) {
1138                         rcode = do_can (argv);
1139                         if (rcode == 0)
1140                                 printf ("OK\n");
1141                         else
1142                                 printf ("Error\n");
1143                         return rcode;
1144                 }
1145                 break;
1146
1147         case 3:
1148                 if (strncmp (argv[1], "rs232", 3) == 0) {
1149                         rcode = do_rs232 (argv);
1150                         if (rcode == 0)
1151                                 printf ("OK\n");
1152                         else
1153                                 printf ("Error\n");
1154                         return rcode;
1155                 } else if (strncmp (argv[1], "backlight", 4) == 0) {
1156                         if (strncmp (argv[2], "on", 2) == 0) {
1157                                 sm501_backlight (BL_ON);
1158                                 return 0;
1159                         }
1160                         else if (strncmp (argv[2], "off", 3) == 0) {
1161                                 sm501_backlight (BL_OFF);
1162                                 return 0;
1163                         }
1164                 }
1165                 break;
1166
1167         case 4:
1168                 if (strcmp (argv[1], "led") == 0) {
1169                         return (do_led (argv));
1170                 }
1171                 break;
1172
1173         default:
1174                 break;
1175         }
1176
1177         printf ("Usage:\nfkt cmd [arg1] [arg2] ...\n");
1178         return 1;
1179 }
1180
1181
1182 U_BOOT_CMD(
1183         sound ,    5,    1,     cmd_sound,
1184         "sound   - Sound sub-system\n",
1185         "saw [duration] [freq] [channel]\n"
1186         "    - generate sawtooth for 'duration' ms with frequency 'freq'\n"
1187         "      on left \"l\" or right \"r\" channel\n"
1188         "sound square [duration] [freq] [channel]\n"
1189         "    - generate squarewave for 'duration' ms with frequency 'freq'\n"
1190         "      on left \"l\" or right \"r\" channel\n"
1191         "pcm1772 reg val\n"
1192 );
1193
1194 U_BOOT_CMD(
1195         wav ,    3,    1,     cmd_wav,
1196         "wav     - play wav file\n",
1197         "[addr] [bytes]\n"
1198         "    - play wav file at address 'addr' with length 'bytes'\n"
1199 );
1200
1201 U_BOOT_CMD(
1202         beep ,    2,    1,     cmd_beep,
1203         "beep    - play short beep\n",
1204         "[channel]\n"
1205         "    - play short beep on \"l\"eft or \"r\"ight channel\n"
1206 );
1207
1208 U_BOOT_CMD(
1209         fkt ,   4,      1,      cmd_fkt,
1210         "fkt     - Function test routines\n",
1211         "led number on/off\n"
1212         "     - 'number's like printed on STK52XX board\n"
1213         "fkt can\n"
1214         "     - loopback plug for X83 required\n"
1215         "fkt rs232 number\n"
1216         "     - loopback plug(s) for X2 required\n"
1217         "fkt backlight on/off\n"
1218         "     - switch backlight on or off\n"
1219 );
1220 #endif /* CONFIG_STK52XX */
1221 #endif /* CFG_CMD_BSP */