uboot/board/siemens/rut/board.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Board functions for TI AM335X based rut board
   4 * (C) Copyright 2013 Siemens Schweiz AG
   5 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
   6 *
   7 * Based on:
   8 * u-boot:/board/ti/am335x/board.c
   9 *
  10 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  11 */
  12
  13#include <common.h>
  14#include <env.h>
  15#include <errno.h>
  16#include <init.h>
  17#include <malloc.h>
  18#include <net.h>
  19#include <spi.h>
  20#include <spl.h>
  21#include <asm/arch/cpu.h>
  22#include <asm/arch/hardware.h>
  23#include <asm/arch/omap.h>
  24#include <asm/arch/ddr_defs.h>
  25#include <asm/arch/clock.h>
  26#include <asm/arch/gpio.h>
  27#include <asm/arch/mmc_host_def.h>
  28#include <asm/arch/sys_proto.h>
  29#include <asm/io.h>
  30#include <asm/emif.h>
  31#include <asm/gpio.h>
  32#include <i2c.h>
  33#include <miiphy.h>
  34#include <cpsw.h>
  35#include <video.h>
  36#include <watchdog.h>
  37#include <linux/delay.h>
  38#include "board.h"
  39#include "../common/factoryset.h"
  40#include "../../../drivers/video/da8xx-fb.h"
  41
  42/*
  43 * Read header information from EEPROM into global structure.
  44 */
  45static int read_eeprom(void)
  46{
  47        return 0;
  48}
  49
  50#ifdef CONFIG_SPL_BUILD
  51static void board_init_ddr(void)
  52{
  53struct emif_regs rut_ddr3_emif_reg_data = {
  54        .sdram_config = 0x61C04AB2,
  55        .sdram_tim1 = 0x0888A39B,
  56        .sdram_tim2 = 0x26337FDA,
  57        .sdram_tim3 = 0x501F830F,
  58        .emif_ddr_phy_ctlr_1 = 0x6,
  59        .zq_config = 0x50074BE4,
  60        .ref_ctrl = 0x93B,
  61};
  62
  63struct ddr_data rut_ddr3_data = {
  64        .datardsratio0 = 0x3b,
  65        .datawdsratio0 = 0x85,
  66        .datafwsratio0 = 0x100,
  67        .datawrsratio0 = 0xc1,
  68};
  69
  70struct cmd_control rut_ddr3_cmd_ctrl_data = {
  71        .cmd0csratio = 0x40,
  72        .cmd0iclkout = 1,
  73        .cmd1csratio = 0x40,
  74        .cmd1iclkout = 1,
  75        .cmd2csratio = 0x40,
  76        .cmd2iclkout = 1,
  77};
  78
  79const struct ctrl_ioregs ioregs = {
  80        .cm0ioctl               = RUT_IOCTRL_VAL,
  81        .cm1ioctl               = RUT_IOCTRL_VAL,
  82        .cm2ioctl               = RUT_IOCTRL_VAL,
  83        .dt0ioctl               = RUT_IOCTRL_VAL,
  84        .dt1ioctl               = RUT_IOCTRL_VAL,
  85};
  86
  87        config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data,
  88                   &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0);
  89}
  90
  91static int request_and_pulse_reset(int gpio, const char *name)
  92{
  93        int ret;
  94        const int delay_us = 2000; /* 2ms */
  95
  96        ret = gpio_request(gpio, name);
  97        if (ret < 0) {
  98                printf("%s: Unable to request %s\n", __func__, name);
  99                goto err;
 100        }
 101
 102        ret = gpio_direction_output(gpio, 0);
 103        if (ret < 0) {
 104                printf("%s: Unable to set %s  as output\n", __func__, name);
 105                goto err_free_gpio;
 106        }
 107
 108        udelay(delay_us);
 109
 110        gpio_set_value(gpio, 1);
 111
 112        return 0;
 113
 114err_free_gpio:
 115        gpio_free(gpio);
 116err:
 117        return ret;
 118}
 119
 120#define GPIO_TO_PIN(bank, gpio)         (32 * (bank) + (gpio))
 121#define ETH_PHY_RESET_GPIO              GPIO_TO_PIN(2, 18)
 122#define MAXTOUCH_RESET_GPIO             GPIO_TO_PIN(3, 18)
 123#define DISPLAY_RESET_GPIO              GPIO_TO_PIN(3, 19)
 124
 125#define REQUEST_AND_PULSE_RESET(N) \
 126                request_and_pulse_reset(N, #N);
 127
 128static void spl_siemens_board_init(void)
 129{
 130        REQUEST_AND_PULSE_RESET(ETH_PHY_RESET_GPIO);
 131        REQUEST_AND_PULSE_RESET(MAXTOUCH_RESET_GPIO);
 132        REQUEST_AND_PULSE_RESET(DISPLAY_RESET_GPIO);
 133}
 134#endif /* if def CONFIG_SPL_BUILD */
 135
 136#if defined(CONFIG_DRIVER_TI_CPSW)
 137static void cpsw_control(int enabled)
 138{
 139        /* VTP can be added here */
 140
 141        return;
 142}
 143
 144static struct cpsw_slave_data cpsw_slaves[] = {
 145        {
 146                .slave_reg_ofs  = 0x208,
 147                .sliver_reg_ofs = 0xd80,
 148                .phy_addr       = 1,
 149                .phy_if         = PHY_INTERFACE_MODE_RMII,
 150        },
 151        {
 152                .slave_reg_ofs  = 0x308,
 153                .sliver_reg_ofs = 0xdc0,
 154                .phy_addr       = 0,
 155                .phy_if         = PHY_INTERFACE_MODE_RMII,
 156        },
 157};
 158
 159static struct cpsw_platform_data cpsw_data = {
 160        .mdio_base              = CPSW_MDIO_BASE,
 161        .cpsw_base              = CPSW_BASE,
 162        .mdio_div               = 0xff,
 163        .channels               = 8,
 164        .cpdma_reg_ofs          = 0x800,
 165        .slaves                 = 1,
 166        .slave_data             = cpsw_slaves,
 167        .ale_reg_ofs            = 0xd00,
 168        .ale_entries            = 1024,
 169        .host_port_reg_ofs      = 0x108,
 170        .hw_stats_reg_ofs       = 0x900,
 171        .bd_ram_ofs             = 0x2000,
 172        .mac_control            = (1 << 5),
 173        .control                = cpsw_control,
 174        .host_port_num          = 0,
 175        .version                = CPSW_CTRL_VERSION_2,
 176};
 177
 178#if defined(CONFIG_DRIVER_TI_CPSW) || \
 179        (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
 180int board_eth_init(struct bd_info *bis)
 181{
 182        struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 183        int n = 0;
 184        int rv;
 185
 186#ifndef CONFIG_SPL_BUILD
 187        factoryset_env_set();
 188#endif
 189
 190        /* Set rgmii mode and enable rmii clock to be sourced from chip */
 191        writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
 192
 193        rv = cpsw_register(&cpsw_data);
 194        if (rv < 0)
 195                printf("Error %d registering CPSW switch\n", rv);
 196        else
 197                n += rv;
 198        return n;
 199}
 200#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
 201#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
 202
 203#if defined(CONFIG_HW_WATCHDOG)
 204static bool hw_watchdog_init_done;
 205static int  hw_watchdog_trigger_level;
 206
 207void hw_watchdog_reset(void)
 208{
 209        if (!hw_watchdog_init_done)
 210                return;
 211
 212        hw_watchdog_trigger_level = hw_watchdog_trigger_level ? 0 : 1;
 213        gpio_set_value(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
 214}
 215
 216void hw_watchdog_init(void)
 217{
 218        gpio_request(WATCHDOG_TRIGGER_GPIO, "watchdog_trigger");
 219        gpio_direction_output(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
 220
 221        hw_watchdog_reset();
 222
 223        hw_watchdog_init_done = 1;
 224}
 225#endif /* defined(CONFIG_HW_WATCHDOG) */
 226
 227#if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
 228static struct da8xx_panel lcd_panels[] = {
 229        /* FORMIKE, 4.3", 480x800, KWH043MC17-F01 */
 230        [0] = {
 231                .name   = "KWH043MC17-F01",
 232                .width  = 480,
 233                .height = 800,
 234                .hfp = 50,              /* no spec, "don't care" values */
 235                .hbp = 50,
 236                .hsw = 50,
 237                .vfp = 50,
 238                .vbp = 50,
 239                .vsw = 50,
 240                .pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */
 241                .invert_pxl_clk = 1,
 242        },
 243        /* FORMIKE, 4.3", 480x800, KWH043ST20-F01 */
 244        [1] = {
 245                .name   = "KWH043ST20-F01",
 246                .width  = 480,
 247                .height = 800,
 248                .hfp = 50,              /* no spec, "don't care" values */
 249                .hbp = 50,
 250                .hsw = 50,
 251                .vfp = 50,
 252                .vbp = 50,
 253                .vsw = 50,
 254                .pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */
 255                .invert_pxl_clk = 1,
 256        },
 257        /* Multi-Inno, 4.3", 480x800, MI0430VT-1 */
 258        [2] = {
 259                .name   = "MI0430VT-1",
 260                .width  = 480,
 261                .height = 800,
 262                .hfp = 50,              /* no spec, "don't care" values */
 263                .hbp = 50,
 264                .hsw = 50,
 265                .vfp = 50,
 266                .vbp = 50,
 267                .vsw = 50,
 268                .pxl_clk = 35910000,    /* tCYCD=20ns, max 50MHz, 60fps */
 269                .invert_pxl_clk = 1,
 270        },
 271};
 272
 273static const struct display_panel disp_panels[] = {
 274        [0] = {
 275                WVGA,
 276                16,     /* RGB 888 */
 277                16,
 278                COLOR_ACTIVE,
 279        },
 280        [1] = {
 281                WVGA,
 282                16,     /* RGB 888 */
 283                16,
 284                COLOR_ACTIVE,
 285        },
 286        [2] = {
 287                WVGA,
 288                24,     /* RGB 888 */
 289                16,
 290                COLOR_ACTIVE,
 291        },
 292};
 293
 294static const struct lcd_ctrl_config lcd_cfgs[] = {
 295        [0] = {
 296                &disp_panels[0],
 297                .ac_bias                = 255,
 298                .ac_bias_intrpt         = 0,
 299                .dma_burst_sz           = 16,
 300                .bpp                    = 16,
 301                .fdd                    = 0x80,
 302                .tft_alt_mode           = 0,
 303                .stn_565_mode           = 0,
 304                .mono_8bit_mode         = 0,
 305                .invert_line_clock      = 1,
 306                .invert_frm_clock       = 1,
 307                .sync_edge              = 0,
 308                .sync_ctrl              = 1,
 309                .raster_order           = 0,
 310        },
 311        [1] = {
 312                &disp_panels[1],
 313                .ac_bias                = 255,
 314                .ac_bias_intrpt         = 0,
 315                .dma_burst_sz           = 16,
 316                .bpp                    = 16,
 317                .fdd                    = 0x80,
 318                .tft_alt_mode           = 0,
 319                .stn_565_mode           = 0,
 320                .mono_8bit_mode         = 0,
 321                .invert_line_clock      = 1,
 322                .invert_frm_clock       = 1,
 323                .sync_edge              = 0,
 324                .sync_ctrl              = 1,
 325                .raster_order           = 0,
 326        },
 327        [2] = {
 328                &disp_panels[2],
 329                .ac_bias                = 255,
 330                .ac_bias_intrpt         = 0,
 331                .dma_burst_sz           = 16,
 332                .bpp                    = 24,
 333                .fdd                    = 0x80,
 334                .tft_alt_mode           = 0,
 335                .stn_565_mode           = 0,
 336                .mono_8bit_mode         = 0,
 337                .invert_line_clock      = 1,
 338                .invert_frm_clock       = 1,
 339                .sync_edge              = 0,
 340                .sync_ctrl              = 1,
 341                .raster_order           = 0,
 342        },
 343
 344};
 345
 346/* no console on this board */
 347int board_cfb_skip(void)
 348{
 349        return 1;
 350}
 351
 352#define PLL_GET_M(v) ((v >> 8) & 0x7ff)
 353#define PLL_GET_N(v) (v & 0x7f)
 354
 355static struct dpll_regs dpll_lcd_regs = {
 356        .cm_clkmode_dpll = CM_WKUP + 0x98,
 357        .cm_idlest_dpll = CM_WKUP + 0x48,
 358        .cm_clksel_dpll = CM_WKUP + 0x54,
 359};
 360
 361static int get_clk(struct dpll_regs *dpll_regs)
 362{
 363        unsigned int val;
 364        unsigned int m, n;
 365        int f = 0;
 366
 367        val = readl(dpll_regs->cm_clksel_dpll);
 368        m = PLL_GET_M(val);
 369        n = PLL_GET_N(val);
 370        f = (m * V_OSCK) / n;
 371
 372        return f;
 373};
 374
 375int clk_get(int clk)
 376{
 377        return get_clk(&dpll_lcd_regs);
 378};
 379
 380static int conf_disp_pll(int m, int n)
 381{
 382        struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
 383        struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
 384#if defined(DISPL_PLL_SPREAD_SPECTRUM)
 385        struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP;
 386#endif
 387
 388        u32 *const clk_domains[] = {
 389                &cmper->lcdclkctrl,
 390                0
 391        };
 392        u32 *const clk_modules_explicit_en[] = {
 393                &cmper->lcdclkctrl,
 394                &cmper->lcdcclkstctrl,
 395                &cmper->spi1clkctrl,
 396                0
 397        };
 398        do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
 399
 400        do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
 401
 402#if defined(DISPL_PLL_SPREAD_SPECTRUM)
 403        writel(0x64, &cmwkup->resv6[3]); /* 0x50 */
 404        writel(0x800, &cmwkup->resv6[2]); /* 0x4c */
 405        writel(readl(&cmwkup->clkmoddplldisp) | CM_CLKMODE_DPLL_SSC_EN_MASK,
 406               &cmwkup->clkmoddplldisp); /* 0x98 */
 407#endif
 408        return 0;
 409}
 410
 411static int set_gpio(int gpio, int state)
 412{
 413        gpio_request(gpio, "temp");
 414        gpio_direction_output(gpio, state);
 415        gpio_set_value(gpio, state);
 416        gpio_free(gpio);
 417        return 0;
 418}
 419
 420static int enable_lcd(void)
 421{
 422        unsigned char buf[1];
 423
 424        set_gpio(BOARD_LCD_RESET, 0);
 425        mdelay(1);
 426        set_gpio(BOARD_LCD_RESET, 1);
 427        mdelay(1);
 428
 429        /* spi lcd init */
 430        kwh043st20_f01_spi_startup(1, 0, 5000000, SPI_MODE_0);
 431
 432        /* backlight on */
 433        buf[0] = 0xf;
 434        i2c_write(0x24, 0x7, 1, buf, 1);
 435        buf[0] = 0x3f;
 436        i2c_write(0x24, 0x8, 1, buf, 1);
 437        return 0;
 438}
 439
 440int arch_early_init_r(void)
 441{
 442        enable_lcd();
 443        return 0;
 444}
 445
 446static int board_video_init(void)
 447{
 448        int i;
 449        int anzdisp = ARRAY_SIZE(lcd_panels);
 450        int display = 1;
 451
 452        for (i = 0; i < anzdisp; i++) {
 453                if (strncmp((const char *)factory_dat.disp_name,
 454                            lcd_panels[i].name,
 455                    strlen((const char *)factory_dat.disp_name)) == 0) {
 456                        printf("DISPLAY: %s\n", factory_dat.disp_name);
 457                        break;
 458                }
 459        }
 460        if (i == anzdisp) {
 461                i = 1;
 462                printf("%s: %s not found, using default %s\n", __func__,
 463                       factory_dat.disp_name, lcd_panels[i].name);
 464        }
 465        conf_disp_pll(24, 1);
 466        da8xx_video_init(&lcd_panels[display], &lcd_cfgs[display],
 467                         lcd_cfgs[display].bpp);
 468
 469        return 0;
 470}
 471#endif /* ifdef CONFIG_VIDEO */
 472
 473#ifdef CONFIG_BOARD_LATE_INIT
 474int board_late_init(void)
 475{
 476        int ret;
 477        char tmp[2 * MAX_STRING_LENGTH + 2];
 478
 479        omap_nand_switch_ecc(1, 8);
 480
 481        if (factory_dat.asn[0] != 0)
 482                sprintf(tmp, "%s_%s", factory_dat.asn,
 483                        factory_dat.comp_version);
 484        else
 485                strcpy(tmp, "QMX7.E38_4.0");
 486
 487        ret = env_set("boardid", tmp);
 488        if (ret)
 489                printf("error setting board id\n");
 490
 491        return 0;
 492}
 493#endif
 494
 495#include "../common/board.c"
 496