uboot/board/ti/beagle/beagle.c
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   1/*
   2 * (C) Copyright 2004-2011
   3 * Texas Instruments, <www.ti.com>
   4 *
   5 * Author :
   6 *      Sunil Kumar <sunilsaini05@gmail.com>
   7 *      Shashi Ranjan <shashiranjanmca05@gmail.com>
   8 *
   9 * Derived from Beagle Board and 3430 SDP code by
  10 *      Richard Woodruff <r-woodruff2@ti.com>
  11 *      Syed Mohammed Khasim <khasim@ti.com>
  12 *
  13 *
  14 * SPDX-License-Identifier:     GPL-2.0+
  15 */
  16#include <common.h>
  17#ifdef CONFIG_STATUS_LED
  18#include <status_led.h>
  19#endif
  20#include <twl4030.h>
  21#include <linux/mtd/nand.h>
  22#include <asm/io.h>
  23#include <asm/arch/mmc_host_def.h>
  24#include <asm/arch/mux.h>
  25#include <asm/arch/mem.h>
  26#include <asm/arch/sys_proto.h>
  27#include <asm/gpio.h>
  28#include <asm/mach-types.h>
  29#include <asm/omap_musb.h>
  30#include <asm/errno.h>
  31#include <linux/usb/ch9.h>
  32#include <linux/usb/gadget.h>
  33#include <linux/usb/musb.h>
  34#include "beagle.h"
  35#include <command.h>
  36
  37#ifdef CONFIG_USB_EHCI
  38#include <usb.h>
  39#include <asm/ehci-omap.h>
  40#endif
  41
  42#define TWL4030_I2C_BUS                 0
  43#define EXPANSION_EEPROM_I2C_BUS        1
  44#define EXPANSION_EEPROM_I2C_ADDRESS    0x50
  45
  46#define TINCANTOOLS_ZIPPY               0x01000100
  47#define TINCANTOOLS_ZIPPY2              0x02000100
  48#define TINCANTOOLS_TRAINER             0x04000100
  49#define TINCANTOOLS_SHOWDOG             0x03000100
  50#define KBADC_BEAGLEFPGA                0x01000600
  51#define LW_BEAGLETOUCH                  0x01000700
  52#define BRAINMUX_LCDOG                  0x01000800
  53#define BRAINMUX_LCDOGTOUCH             0x02000800
  54#define BBTOYS_WIFI                     0x01000B00
  55#define BBTOYS_VGA                      0x02000B00
  56#define BBTOYS_LCD                      0x03000B00
  57#define BCT_BRETTL3                     0x01000F00
  58#define BCT_BRETTL4                     0x02000F00
  59#define LSR_COM6L_ADPT                  0x01001300
  60#define BEAGLE_NO_EEPROM                0xffffffff
  61
  62DECLARE_GLOBAL_DATA_PTR;
  63
  64static struct {
  65        unsigned int device_vendor;
  66        unsigned char revision;
  67        unsigned char content;
  68        char fab_revision[8];
  69        char env_var[16];
  70        char env_setting[64];
  71} expansion_config;
  72
  73/*
  74 * Routine: board_init
  75 * Description: Early hardware init.
  76 */
  77int board_init(void)
  78{
  79        gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  80        /* board id for Linux */
  81        gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;
  82        /* boot param addr */
  83        gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  84
  85#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
  86        status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
  87#endif
  88
  89        return 0;
  90}
  91
  92/*
  93 * Routine: get_board_revision
  94 * Description: Detect if we are running on a Beagle revision Ax/Bx,
  95 *              C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading
  96 *              the level of GPIO173, GPIO172 and GPIO171. This should
  97 *              result in
  98 *              GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
  99 *              GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
 100 *              GPIO173, GPIO172, GPIO171: 1 0 1 => C4
 101 *              GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx
 102 *              GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx
 103 */
 104static int get_board_revision(void)
 105{
 106        int revision;
 107
 108        if (!gpio_request(171, "") &&
 109            !gpio_request(172, "") &&
 110            !gpio_request(173, "")) {
 111
 112                gpio_direction_input(171);
 113                gpio_direction_input(172);
 114                gpio_direction_input(173);
 115
 116                revision = gpio_get_value(173) << 2 |
 117                           gpio_get_value(172) << 1 |
 118                           gpio_get_value(171);
 119        } else {
 120                printf("Error: unable to acquire board revision GPIOs\n");
 121                revision = -1;
 122        }
 123
 124        return revision;
 125}
 126
 127#ifdef CONFIG_SPL_BUILD
 128/*
 129 * Routine: get_board_mem_timings
 130 * Description: If we use SPL then there is no x-loader nor config header
 131 * so we have to setup the DDR timings ourself on both banks.
 132 */
 133void get_board_mem_timings(struct board_sdrc_timings *timings)
 134{
 135        int pop_mfr, pop_id;
 136
 137        /*
 138         * We need to identify what PoP memory is on the board so that
 139         * we know what timings to use.  If we can't identify it then
 140         * we know it's an xM.  To map the ID values please see nand_ids.c
 141         */
 142        identify_nand_chip(&pop_mfr, &pop_id);
 143
 144        timings->mr = MICRON_V_MR_165;
 145        switch (get_board_revision()) {
 146        case REVISION_C4:
 147                if (pop_mfr == NAND_MFR_STMICRO && pop_id == 0xba) {
 148                        /* 512MB DDR */
 149                        timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
 150                        timings->ctrla = NUMONYX_V_ACTIMA_165;
 151                        timings->ctrlb = NUMONYX_V_ACTIMB_165;
 152                        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 153                        break;
 154                } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xba) {
 155                        /* Beagleboard Rev C4, 512MB Nand/256MB DDR*/
 156                        timings->mcfg = MICRON_V_MCFG_165(128 << 20);
 157                        timings->ctrla = MICRON_V_ACTIMA_165;
 158                        timings->ctrlb = MICRON_V_ACTIMB_165;
 159                        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 160                        break;
 161                } else if (pop_mfr == NAND_MFR_MICRON && pop_id == 0xbc) {
 162                        /* Beagleboard Rev C5, 256MB DDR */
 163                        timings->mcfg = MICRON_V_MCFG_200(256 << 20);
 164                        timings->ctrla = MICRON_V_ACTIMA_200;
 165                        timings->ctrlb = MICRON_V_ACTIMB_200;
 166                        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
 167                        break;
 168                }
 169        case REVISION_XM_AB:
 170        case REVISION_XM_C:
 171                if (pop_mfr == 0) {
 172                        /* 256MB DDR */
 173                        timings->mcfg = MICRON_V_MCFG_200(256 << 20);
 174                        timings->ctrla = MICRON_V_ACTIMA_200;
 175                        timings->ctrlb = MICRON_V_ACTIMB_200;
 176                        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
 177                } else {
 178                        /* 512MB DDR */
 179                        timings->mcfg = NUMONYX_V_MCFG_165(512 << 20);
 180                        timings->ctrla = NUMONYX_V_ACTIMA_165;
 181                        timings->ctrlb = NUMONYX_V_ACTIMB_165;
 182                        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 183                }
 184                break;
 185        default:
 186                /* Assume 128MB and Micron/165MHz timings to be safe */
 187                timings->mcfg = MICRON_V_MCFG_165(128 << 20);
 188                timings->ctrla = MICRON_V_ACTIMA_165;
 189                timings->ctrlb = MICRON_V_ACTIMB_165;
 190                timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
 191        }
 192}
 193#endif
 194
 195/*
 196 * Routine: get_expansion_id
 197 * Description: This function checks for expansion board by checking I2C
 198 *              bus 1 for the availability of an AT24C01B serial EEPROM.
 199 *              returns the device_vendor field from the EEPROM
 200 */
 201static unsigned int get_expansion_id(void)
 202{
 203        i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
 204
 205        /* return BEAGLE_NO_EEPROM if eeprom doesn't respond */
 206        if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
 207                i2c_set_bus_num(TWL4030_I2C_BUS);
 208                return BEAGLE_NO_EEPROM;
 209        }
 210
 211        /* read configuration data */
 212        i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
 213                 sizeof(expansion_config));
 214
 215        /* retry reading configuration data with 16bit addressing */
 216        if ((expansion_config.device_vendor == 0xFFFFFF00) ||
 217            (expansion_config.device_vendor == 0xFFFFFFFF)) {
 218                printf("EEPROM is blank or 8bit addressing failed: retrying with 16bit:\n");
 219                i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 2, (u8 *)&expansion_config,
 220                         sizeof(expansion_config));
 221        }
 222
 223        i2c_set_bus_num(TWL4030_I2C_BUS);
 224
 225        return expansion_config.device_vendor;
 226}
 227
 228#ifdef CONFIG_VIDEO_OMAP3
 229/*
 230 * Configure DSS to display background color on DVID
 231 * Configure VENC to display color bar on S-Video
 232 */
 233static void beagle_display_init(void)
 234{
 235        omap3_dss_venc_config(&venc_config_std_tv, VENC_HEIGHT, VENC_WIDTH);
 236        switch (get_board_revision()) {
 237        case REVISION_AXBX:
 238        case REVISION_CX:
 239        case REVISION_C4:
 240                omap3_dss_panel_config(&dvid_cfg);
 241                break;
 242        case REVISION_XM_AB:
 243        case REVISION_XM_C:
 244        default:
 245                omap3_dss_panel_config(&dvid_cfg_xm);
 246                break;
 247        }
 248}
 249
 250/*
 251 * Enable DVI power
 252 */
 253static void beagle_dvi_pup(void)
 254{
 255        uchar val;
 256
 257        switch (get_board_revision()) {
 258        case REVISION_AXBX:
 259        case REVISION_CX:
 260        case REVISION_C4:
 261                gpio_request(170, "");
 262                gpio_direction_output(170, 0);
 263                gpio_set_value(170, 1);
 264                break;
 265        case REVISION_XM_AB:
 266        case REVISION_XM_C:
 267        default:
 268                #define GPIODATADIR1 (TWL4030_BASEADD_GPIO+3)
 269                #define GPIODATAOUT1 (TWL4030_BASEADD_GPIO+6)
 270
 271                i2c_read(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
 272                val |= 4;
 273                i2c_write(TWL4030_CHIP_GPIO, GPIODATADIR1, 1, &val, 1);
 274
 275                i2c_read(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
 276                val |= 4;
 277                i2c_write(TWL4030_CHIP_GPIO, GPIODATAOUT1, 1, &val, 1);
 278                break;
 279        }
 280}
 281#endif
 282
 283#ifdef CONFIG_USB_MUSB_OMAP2PLUS
 284static struct musb_hdrc_config musb_config = {
 285        .multipoint     = 1,
 286        .dyn_fifo       = 1,
 287        .num_eps        = 16,
 288        .ram_bits       = 12,
 289};
 290
 291static struct omap_musb_board_data musb_board_data = {
 292        .interface_type = MUSB_INTERFACE_ULPI,
 293};
 294
 295static struct musb_hdrc_platform_data musb_plat = {
 296#if defined(CONFIG_MUSB_HOST)
 297        .mode           = MUSB_HOST,
 298#elif defined(CONFIG_MUSB_GADGET)
 299        .mode           = MUSB_PERIPHERAL,
 300#else
 301#error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET"
 302#endif
 303        .config         = &musb_config,
 304        .power          = 100,
 305        .platform_ops   = &omap2430_ops,
 306        .board_data     = &musb_board_data,
 307};
 308#endif
 309
 310/*
 311 * Routine: misc_init_r
 312 * Description: Configure board specific parts
 313 */
 314int misc_init_r(void)
 315{
 316        struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
 317        struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
 318        struct control_prog_io *prog_io_base = (struct control_prog_io *)OMAP34XX_CTRL_BASE;
 319        bool generate_fake_mac = false;
 320
 321        /* Enable i2c2 pullup resisters */
 322        writel(~(PRG_I2C2_PULLUPRESX), &prog_io_base->io1);
 323
 324        switch (get_board_revision()) {
 325        case REVISION_AXBX:
 326                printf("Beagle Rev Ax/Bx\n");
 327                setenv("beaglerev", "AxBx");
 328                break;
 329        case REVISION_CX:
 330                printf("Beagle Rev C1/C2/C3\n");
 331                setenv("beaglerev", "Cx");
 332                MUX_BEAGLE_C();
 333                break;
 334        case REVISION_C4:
 335                printf("Beagle Rev C4\n");
 336                setenv("beaglerev", "C4");
 337                MUX_BEAGLE_C();
 338                /* Set VAUX2 to 1.8V for EHCI PHY */
 339                twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 340                                        TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 341                                        TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 342                                        TWL4030_PM_RECEIVER_DEV_GRP_P1);
 343                break;
 344        case REVISION_XM_AB:
 345                printf("Beagle xM Rev A/B\n");
 346                setenv("beaglerev", "xMAB");
 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        case REVISION_XM_C:
 356                printf("Beagle xM Rev C\n");
 357                setenv("beaglerev", "xMC");
 358                MUX_BEAGLE_XM();
 359                /* Set VAUX2 to 1.8V for EHCI PHY */
 360                twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 361                                        TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 362                                        TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 363                                        TWL4030_PM_RECEIVER_DEV_GRP_P1);
 364                generate_fake_mac = true;
 365                break;
 366        default:
 367                printf("Beagle unknown 0x%02x\n", get_board_revision());
 368                MUX_BEAGLE_XM();
 369                /* Set VAUX2 to 1.8V for EHCI PHY */
 370                twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
 371                                        TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
 372                                        TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
 373                                        TWL4030_PM_RECEIVER_DEV_GRP_P1);
 374                generate_fake_mac = true;
 375        }
 376
 377        switch (get_expansion_id()) {
 378        case TINCANTOOLS_ZIPPY:
 379                printf("Recognized Tincantools Zippy board (rev %d %s)\n",
 380                        expansion_config.revision,
 381                        expansion_config.fab_revision);
 382                MUX_TINCANTOOLS_ZIPPY();
 383                setenv("buddy", "zippy");
 384                break;
 385        case TINCANTOOLS_ZIPPY2:
 386                printf("Recognized Tincantools Zippy2 board (rev %d %s)\n",
 387                        expansion_config.revision,
 388                        expansion_config.fab_revision);
 389                MUX_TINCANTOOLS_ZIPPY();
 390                setenv("buddy", "zippy2");
 391                break;
 392        case TINCANTOOLS_TRAINER:
 393                printf("Recognized Tincantools Trainer board (rev %d %s)\n",
 394                        expansion_config.revision,
 395                        expansion_config.fab_revision);
 396                MUX_TINCANTOOLS_ZIPPY();
 397                MUX_TINCANTOOLS_TRAINER();
 398                setenv("buddy", "trainer");
 399                break;
 400        case TINCANTOOLS_SHOWDOG:
 401                printf("Recognized Tincantools Showdow board (rev %d %s)\n",
 402                        expansion_config.revision,
 403                        expansion_config.fab_revision);
 404                /* Place holder for DSS2 definition for showdog lcd */
 405                setenv("defaultdisplay", "showdoglcd");
 406                setenv("buddy", "showdog");
 407                break;
 408        case KBADC_BEAGLEFPGA:
 409                printf("Recognized KBADC Beagle FPGA board\n");
 410                MUX_KBADC_BEAGLEFPGA();
 411                setenv("buddy", "beaglefpga");
 412                break;
 413        case LW_BEAGLETOUCH:
 414                printf("Recognized Liquidware BeagleTouch board\n");
 415                setenv("buddy", "beagletouch");
 416                break;
 417        case BRAINMUX_LCDOG:
 418                printf("Recognized Brainmux LCDog board\n");
 419                setenv("buddy", "lcdog");
 420                break;
 421        case BRAINMUX_LCDOGTOUCH:
 422                printf("Recognized Brainmux LCDog Touch board\n");
 423                setenv("buddy", "lcdogtouch");
 424                break;
 425        case BBTOYS_WIFI:
 426                printf("Recognized BeagleBoardToys WiFi board\n");
 427                MUX_BBTOYS_WIFI()
 428                setenv("buddy", "bbtoys-wifi");
 429                break;;
 430        case BBTOYS_VGA:
 431                printf("Recognized BeagleBoardToys VGA board\n");
 432                break;;
 433        case BBTOYS_LCD:
 434                printf("Recognized BeagleBoardToys LCD board\n");
 435                break;;
 436        case BCT_BRETTL3:
 437                printf("Recognized bct electronic GmbH brettl3 board\n");
 438                break;
 439        case BCT_BRETTL4:
 440                printf("Recognized bct electronic GmbH brettl4 board\n");
 441                break;
 442        case LSR_COM6L_ADPT:
 443                printf("Recognized LSR COM6L Adapter Board\n");
 444                MUX_BBTOYS_WIFI()
 445                setenv("buddy", "lsr-com6l-adpt");
 446                break;
 447        case BEAGLE_NO_EEPROM:
 448                printf("No EEPROM on expansion board\n");
 449                setenv("buddy", "none");
 450                break;
 451        default:
 452                printf("Unrecognized expansion board: %x\n",
 453                        expansion_config.device_vendor);
 454                setenv("buddy", "unknown");
 455        }
 456
 457        if (expansion_config.content == 1)
 458                setenv(expansion_config.env_var, expansion_config.env_setting);
 459
 460        twl4030_power_init();
 461        switch (get_board_revision()) {
 462        case REVISION_XM_AB:
 463                twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
 464                break;
 465        default:
 466                twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 467                break;
 468        }
 469
 470        /* Set GPIO states before they are made outputs */
 471        writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
 472                &gpio6_base->setdataout);
 473        writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 474                GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
 475
 476        /* Configure GPIOs to output */
 477        writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
 478        writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
 479                GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
 480
 481        dieid_num_r();
 482
 483#ifdef CONFIG_VIDEO_OMAP3
 484        beagle_dvi_pup();
 485        beagle_display_init();
 486        omap3_dss_enable();
 487#endif
 488
 489#ifdef CONFIG_USB_MUSB_OMAP2PLUS
 490        musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE);
 491#endif
 492
 493        if (generate_fake_mac) {
 494                u32 id[4];
 495
 496                get_dieid(id);
 497                usb_fake_mac_from_die_id(id);
 498        }
 499
 500        return 0;
 501}
 502
 503/*
 504 * Routine: set_muxconf_regs
 505 * Description: Setting up the configuration Mux registers specific to the
 506 *              hardware. Many pins need to be moved from protect to primary
 507 *              mode.
 508 */
 509void set_muxconf_regs(void)
 510{
 511        MUX_BEAGLE();
 512}
 513
 514#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
 515int board_mmc_init(bd_t *bis)
 516{
 517        return omap_mmc_init(0, 0, 0, -1, -1);
 518}
 519#endif
 520
 521#if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
 522/* Call usb_stop() before starting the kernel */
 523void show_boot_progress(int val)
 524{
 525        if (val == BOOTSTAGE_ID_RUN_OS)
 526                usb_stop();
 527}
 528
 529static struct omap_usbhs_board_data usbhs_bdata = {
 530        .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 531        .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 532        .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
 533};
 534
 535int ehci_hcd_init(int index, enum usb_init_type init,
 536                struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 537{
 538        return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 539}
 540
 541int ehci_hcd_stop(int index)
 542{
 543        return omap_ehci_hcd_stop();
 544}
 545
 546#endif /* CONFIG_USB_EHCI */
 547
 548#if defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)
 549int board_eth_init(bd_t *bis)
 550{
 551        return usb_eth_initialize(bis);
 552}
 553#endif
 554