board/ti/beagle/beagle.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2004-2011
   4  * Texas Instruments, <www.ti.com>
   5  *
   6  * Author :
   7  *      Sunil Kumar <sunilsaini05@gmail.com>
   8  *      Shashi Ranjan <shashiranjanmca05@gmail.com>
   9  *
  10  * Derived from Beagle Board and 3430 SDP code by
  11  *      Richard Woodruff <r-woodruff2@ti.com>
  12  *      Syed Mohammed Khasim <khasim@ti.com>
  13  *
  14  */
  15 #include <common.h>
  16 #include <bootstage.h>
  17 #include <dm.h>
  18 #include <env.h>
  19 #include <init.h>
  20 #include <net.h>
  21 #include <ns16550.h>
  22 #include <serial.h>
  23 #ifdef CONFIG_LED_STATUS
  24 #include <status_led.h>
  25 #endif
  26 #include <twl4030.h>
  27 #include <asm/global_data.h>
  28 #include <linux/mtd/rawnand.h>
  29 #include <asm/io.h>
  30 #include <asm/arch/mmc_host_def.h>
  31 #include <asm/arch/mux.h>
  32 #include <asm/arch/mem.h>
  33 #include <asm/arch/sys_proto.h>
  34 #include <asm/gpio.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/omap_musb.h>
  37 #include <linux/errno.h>
  38 #include <linux/usb/ch9.h>
  39 #include <linux/usb/gadget.h>
  40 #include <linux/usb/musb.h>
  41 #include "beagle.h"
  42 #include <command.h>
  43
  44 #define TWL4030_I2C_BUS                 0
  45 #define EXPANSION_EEPROM_I2C_BUS        1
  46 #define EXPANSION_EEPROM_I2C_ADDRESS    0x50
  47
  48 #define TINCANTOOLS_ZIPPY               0x01000100
  49 #define TINCANTOOLS_ZIPPY2              0x02000100
  50 #define TINCANTOOLS_TRAINER             0x04000100
  51 #define TINCANTOOLS_SHOWDOG             0x03000100
  52 #define KBADC_BEAGLEFPGA                0x01000600
  53 #define LW_BEAGLETOUCH                  0x01000700
  54 #define BRAINMUX_LCDOG                  0x01000800
  55 #define BRAINMUX_LCDOGTOUCH             0x02000800
  56 #define BBTOYS_WIFI                     0x01000B00
  57 #define BBTOYS_VGA                      0x02000B00
  58 #define BBTOYS_LCD                      0x03000B00
  59 #define BCT_BRETTL3                     0x01000F00
  60 #define BCT_BRETTL4                     0x02000F00
  61 #define LSR_COM6L_ADPT                  0x01001300
  62 #define BEAGLE_NO_EEPROM                0xffffffff
  63
  64 DECLARE_GLOBAL_DATA_PTR;
  65
  66 static struct {
  67         unsigned int device_vendor;
  68         unsigned char revision;
  69         unsigned char content;
  70         char fab_revision[8];
  71         char env_var[16];
  72         char env_setting[64];
  73 } expansion_config;
  74
  75 /*
  76  * Routine: board_init
  77  * Description: Early hardware init.
  78  */
  79 int board_init(void)
  80 {
  81         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  82         /* board id for Linux */
  83         gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
  84         /* boot param addr */
  85         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  86
  87 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
  88         status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
  89 #endif
  90
  91         return 0;
  92 }
  93
  94 #if defined(CONFIG_SPL_OS_BOOT)
  95 int spl_start_uboot(void)
  96 {
  97         /* break into full u-boot on 'c' */
  98         if (serial_tstc() && serial_getc() == 'c')
  99                 return 1;
 100
 101         return 0;
 102 }
 103 #endif /* CONFIG_SPL_OS_BOOT */
 104
 105 /*
 106  * Routine: get_board_revision
 107  * Description: Detect if we are running on a Beagle revision Ax/Bx,
 108  *              C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading
 109  *              the level of GPIO173, GPIO172 and GPIO171. This should
 110  *              result in
 111  *              GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
 112  *              GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
 113  *              GPIO173, GPIO172, GPIO171: 1 0 1 => C4
 114  *              GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx
 115  *              GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx
 116  */
 117 static int get_board_revision(void)
 118 {
 119         static int revision = -1;
 120
 121         if (revision == -1) {
 122                 if (!gpio_request(171, "rev0") &&
 123                     !gpio_request(172, "rev1") &&
 124                     !gpio_request(173, "rev2")) {
 125                         gpio_direction_input(171);
 126                         gpio_direction_input(172);
 127                         gpio_direction_input(173);
 128
 129                         revision = gpio_get_value(173) << 2 |
 130                                 gpio_get_value(172) << 1 |
 131                                 gpio_get_value(171);
 132                 } else {
 133                         printf("Error: unable to acquire board revision GPIOs\n");
 134                 }
 135         }
 136
 137         return revision;
 138 }
 139
 140 #ifdef CONFIG_SPL_BUILD
 141 /*
 142  * Routine: get_board_mem_timings
 143  * Description: If we use SPL then there is no x-loader nor config header
 144  * so we have to setup the DDR timings ourself on both banks.
 145  */
 146 void get_board_mem_timings(struct board_sdrc_timings *timings)
 147 {
 148         int pop_mfr, pop_id;
 149
 150         /*
 151          * We need to identify what PoP memory is on the board so that
 152          * we know what timings to use.  If we can't identify it then
 153          * we know it's an xM.  To map the ID values please see nand_ids.c
 154          */
 155         identify_nand_chip(&pop_mfr, &pop_id);
 156
 157         timings->mr = MICRON_V_MR_165;
 158         switch (get_board_revision()) {
 159         case REVISION_C4:
 160                 if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
 161                         /* 512MB DDR */
 162                         timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
 163                         timings->ctrla = NUMONYX_V_ACTIMA_165;
 164                         timings->ctrlb = NUMONYX_V_ACTIMB_165;
 165                         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 166                         break;
 167                 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
 168                         /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
 169                         timings->mcfg = MICRON_V_MCFG_165(128 << 20);
 170                         timings->ctrla = MICRON_V_ACTIMA_165;
 171                         timings->ctrlb = MICRON_V_ACTIMB_165;
 172                         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 173                         break;
 174                 } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
 175                         /* Beagleboard Rev C5, 256MB DDR */
 176                         timings->mcfg = MICRON_V_MCFG_200(256 << 20);
 177                         timings->ctrla = MICRON_V_ACTIMA_200;
 178                         timings->ctrlb = MICRON_V_ACTIMB_200;
 179                         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
 180                         break;
 181                 }
 182         case REVISION_XM_AB:
 183         case REVISION_XM_C:
 184                 if (pop_mfr == 0) {
 185                         /* 256MB DDR */
 186                         timings->mcfg = MICRON_V_MCFG_200(256 << 20);
 187                         timings->ctrla = MICRON_V_ACTIMA_200;
 188                         timings->ctrlb = MICRON_V_ACTIMB_200;
 189                         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
 190                 } else {
 191                         /* 512MB DDR */
 192                         timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
 193                         timings->ctrla = NUMONYX_V_ACTIMA_165;
 194                         timings->ctrlb = NUMONYX_V_ACTIMB_165;
 195                         timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 196                 }
 197                 break;
 198         default:
 199                 /* Assume 128MB and Micron/165MHz timings to be safe */
 200                 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
 201                 timings->ctrla = MICRON_V_ACTIMA_165;
 202                 timings->ctrlb = MICRON_V_ACTIMB_165;
 203                 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 204         }
 205 }
 206 #endif
 207
 208 /*
 209  * Routine: get_expansion_id
 210  * Description: This function checks for expansion board by checking I2C
 211  *              bus 1 for the availability of an AT24C01B serial EEPROM.
 212  *              returns the device_vendor field from the EEPROM
 213  */
 214 static unsigned int get_expansion_id(void)
 215 {
 216         i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
 217
 218         /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
 219         if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
 220                 i2c_set_bus_num(TWL4030_I2C_BUS);
 221                 return BEAGLE_NO_EEPROM;
 222         }
 223
 224         /* read configuration data */
 225         i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
 226                  sizeof(expansion_config));
 227
 228         /* retry reading configuration data with 16bit addressing */
 229         if ((expansion_config.device_vendor == 0xFFFFFF00) ||
 230             (expansion_config.device_vendor == 0xFFFFFFFF)) {
 231                 printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n");
 232                 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config,
 233                          sizeof(expansion_config));
 234         }
 235
 236         i2c_set_bus_num(TWL4030_I2C_BUS);
 237
 238         return expansion_config.device_vendor;
 239 }
 240
 241 #ifdef CONFIG_VIDEO_OMAP3
 242 /*
 243  * Configure DSS to display background color on DVID
 244  * Configure VENC to display color bar on S-Video
 245  */
 246 static void beagle_display_init(void)
 247 {
 248         omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
 249         switch (get_board_revision()) {
 250         case REVISION_AXBX:
 251         case REVISION_CX:
 252         case REVISION_C4:
 253                 omap3_dss_panel_config(&dvid_cfg);
 254                 break;
 255         case REVISION_XM_AB:
 256         case REVISION_XM_C:
 257         default:
 258                 omap3_dss_panel_config(&dvid_cfg_xm);
 259                 break;
 260         }
 261 }
 262
 263 /*
 264  * Enable DVI power
 265  */
 266 static void beagle_dvi_pup(void)
 267 {
 268         uchar val;
 269
 270         switch (get_board_revision()) {
 271         case REVISION_AXBX:
 272         case REVISION_CX:
 273         case REVISION_C4:
 274                 gpio_request(170, "dvi");
 275                 gpio_direction_output(170, 0);
 276                 gpio_set_value(170, 1);
 277                 break;
 278         case REVISION_XM_AB:
 279         case REVISION_XM_C:
 280         default:
 281                 #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3)
 282                 #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6)
 283
 284                 i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
 285                 val |= 4;
 286                 i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
 287
 288                 i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
 289                 val |= 4;
 290                 i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
 291                 break;
 292         }
 293 }
 294 #endif
 295
 296 /*
 297  * Routine: misc_init_r
 298  * Description: Configure board specific parts
 299  */
 300 int misc_init_r(void)
 301 {
 302         struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
 303         struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
 304         struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
 305         bool generate_fake_mac = false;
 306         u32 value;
 307
 308         /* Enable i2c2 pullup resisters */
 309         value = readl(&prog_io_base->io1);
 310         value &= ~(PRG_I2C2_PULLUPRESX);
 311         writel(value, &prog_io_base->io1);
 312
 313         switch (get_board_revision()) {
 314         case REVISION_AXBX:
 315                 printf("Beagle Rev Ax/Bx\n");
 316                 env_set("beaglerev", "AxBx");
 317                 break;
 318         case REVISION_CX:
 319                 printf("Beagle Rev C1/C2/C3\n");
 320                 env_set("beaglerev", "Cx");
 321                 MUX_BEAGLE_C();
 322                 break;
 323         case REVISION_C4:
 324                 printf("Beagle Rev C4\n");
 325                 env_set("beaglerev", "C4");
 326                 MUX_BEAGLE_C();
 327                 /* Set VAUX2 to 1.8V for EHCI PHY */
 328                 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 329                                         TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 330                                         TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 331                                         TWL4030_PM_RECEIVER_DEV_GRP_P1);
 332                 break;
 333         case REVISION_XM_AB:
 334                 printf("Beagle xM Rev A/B\n");
 335                 env_set("beaglerev", "xMAB");
 336                 MUX_BEAGLE_XM();
 337                 /* Set VAUX2 to 1.8V for EHCI PHY */
 338                 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 339                                         TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 340                                         TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 341                                         TWL4030_PM_RECEIVER_DEV_GRP_P1);
 342                 generate_fake_mac = true;
 343                 break;
 344         case REVISION_XM_C:
 345                 printf("Beagle xM Rev C\n");
 346                 env_set("beaglerev", "xMC");
 347                 MUX_BEAGLE_XM();
 348                 /* Set VAUX2 to 1.8V for EHCI PHY */
 349                 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 350                                         TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 351                                         TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 352                                         TWL4030_PM_RECEIVER_DEV_GRP_P1);
 353                 generate_fake_mac = true;
 354                 break;
 355         default:
 356                 printf("Beagle unknown 0x%02x\n", get_board_revision());
 357                 MUX_BEAGLE_XM();
 358                 /* Set VAUX2 to 1.8V for EHCI PHY */
 359                 twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 360                                         TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 361                                         TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 362                                         TWL4030_PM_RECEIVER_DEV_GRP_P1);
 363                 generate_fake_mac = true;
 364         }
 365
 366         switch (get_expansion_id()) {
 367         case TINCANTOOLS_ZIPPY:
 368                 printf("Recognized Tincantools Zippy board (rev %d %s)\n",
 369                         expansion_config.revision,
 370                         expansion_config.fab_revision);
 371                 MUX_TINCANTOOLS_ZIPPY();
 372                 env_set("buddy", "zippy");
 373                 break;
 374         case TINCANTOOLS_ZIPPY2:
 375                 printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
 376                         expansion_config.revision,
 377                         expansion_config.fab_revision);
 378                 MUX_TINCANTOOLS_ZIPPY();
 379                 env_set("buddy", "zippy2");
 380                 break;
 381         case TINCANTOOLS_TRAINER:
 382                 printf("Recognized Tincantools Trainer board (rev %d %s)\n",
 383                         expansion_config.revision,
 384                         expansion_config.fab_revision);
 385                 MUX_TINCANTOOLS_ZIPPY();
 386                 MUX_TINCANTOOLS_TRAINER();
 387                 env_set("buddy", "trainer");
 388                 break;
 389         case TINCANTOOLS_SHOWDOG:
 390                 printf("Recognized Tincantools Showdow board (rev %d %s)\n",
 391                         expansion_config.revision,
 392                         expansion_config.fab_revision);
 393                 /* Place holder for DSS2 definition for showdog lcd */
 394                 env_set("defaultdisplay", "showdoglcd");
 395                 env_set("buddy", "showdog");
 396                 break;
 397         case KBADC_BEAGLEFPGA:
 398                 printf("Recognized KBADC Beagle FPGA board\n");
 399                 MUX_KBADC_BEAGLEFPGA();
 400                 env_set("buddy", "beaglefpga");
 401                 break;
 402         case LW_BEAGLETOUCH:
 403                 printf("Recognized Liquidware BeagleTouch board\n");
 404                 env_set("buddy", "beagletouch");
 405                 break;
 406         case BRAINMUX_LCDOG:
 407                 printf("Recognized Brainmux LCDog board\n");
 408                 env_set("buddy", "lcdog");
 409                 break;
 410         case BRAINMUX_LCDOGTOUCH:
 411                 printf("Recognized Brainmux LCDog Touch board\n");
 412                 env_set("buddy", "lcdogtouch");
 413                 break;
 414         case BBTOYS_WIFI:
 415                 printf("Recognized BeagleBoardToys WiFi board\n");
 416                 MUX_BBTOYS_WIFI()
 417                 env_set("buddy", "bbtoys-wifi");
 418                 break;
 419         case BBTOYS_VGA:
 420                 printf("Recognized BeagleBoardToys VGA board\n");
 421                 break;
 422         case BBTOYS_LCD:
 423                 printf("Recognized BeagleBoardToys LCD board\n");
 424                 break;
 425         case BCT_BRETTL3:
 426                 printf("Recognized bct electronic GmbH brettl3 board\n");
 427                 break;
 428         case BCT_BRETTL4:
 429                 printf("Recognized bct electronic GmbH brettl4 board\n");
 430                 break;
 431         case LSR_COM6L_ADPT:
 432                 printf("Recognized LSR COM6L Adapter Board\n");
 433                 MUX_BBTOYS_WIFI()
 434                 env_set("buddy", "lsr-com6l-adpt");
 435                 break;
 436         case BEAGLE_NO_EEPROM:
 437                 printf("No EEPROM on expansion board\n");
 438                 env_set("buddy", "none");
 439                 break;
 440         default:
 441                 printf("Unrecognized expansion board: %x\n",
 442                         expansion_config.device_vendor);
 443                 env_set("buddy", "unknown");
 444         }
 445
 446         if (expansion_config.content == 1)
 447                 env_set(expansion_config.env_var, expansion_config.env_setting);
 448
 449         twl4030_power_init();
 450         twl4030_power_mmc_init(0);
 451
 452         switch (get_board_revision()) {
 453         case REVISION_XM_AB:
 454                 twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
 455                 break;
 456         default:
 457                 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 458                 break;
 459         }
 460
 461         /* Set GPIO states before they are made outputs */
 462         writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
 463                 &gpio6_base->setdataout);
 464         writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 465                 GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
 466
 467         /* Configure GPIOs to output */
 468         writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
 469         writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 470                 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
 471
 472         omap_die_id_display();
 473
 474 #ifdef CONFIG_VIDEO_OMAP3
 475         beagle_dvi_pup();
 476         beagle_display_init();
 477         omap3_dss_enable();
 478 #endif
 479
 480         if (generate_fake_mac)
 481                 omap_die_id_usbethaddr();
 482
 483 #if defined(CONFIG_MTDIDS_DEFAULT) && defined(CONFIG_MTDPARTS_DEFAULT)
 484         if (strlen(CONFIG_MTDIDS_DEFAULT))
 485                 env_set("mtdids", CONFIG_MTDIDS_DEFAULT);
 486
 487         if (strlen(CONFIG_MTDPARTS_DEFAULT))
 488                 env_set("mtdparts", CONFIG_MTDPARTS_DEFAULT);
 489 #endif
 490
 491         return 0;
 492 }
 493
 494 /*
 495  * Routine: set_muxconf_regs
 496  * Description: Setting up the configuration Mux registers specific to the
 497  *              hardware. Many pins need to be moved from protect to primary
 498  *              mode.
 499  */
 500 void set_muxconf_regs(void)
 501 {
 502         MUX_BEAGLE();
 503 }