uboot/board/siemens/pxm2/board.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Board functions for TI AM335X based pxm2 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 * Board functions for TI AM335X based boards
  11 *
  12 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  13 */
  14
  15#include <common.h>
  16#include <env.h>
  17#include <errno.h>
  18#include <init.h>
  19#include <log.h>
  20#include <malloc.h>
  21#include <net.h>
  22#include <spl.h>
  23#include <asm/arch/cpu.h>
  24#include <asm/arch/hardware.h>
  25#include <asm/arch/omap.h>
  26#include <asm/arch/ddr_defs.h>
  27#include <asm/arch/clock.h>
  28#include <asm/arch/gpio.h>
  29#include <asm/arch/mmc_host_def.h>
  30#include <asm/arch/sys_proto.h>
  31#include "../../../drivers/video/da8xx-fb.h"
  32#include <asm/io.h>
  33#include <asm/emif.h>
  34#include <asm/gpio.h>
  35#include <i2c.h>
  36#include <miiphy.h>
  37#include <cpsw.h>
  38#include <watchdog.h>
  39#include "board.h"
  40#include "../common/factoryset.h"
  41#include "pmic.h"
  42#include <nand.h>
  43#include <bmp_layout.h>
  44
  45#ifdef CONFIG_SPL_BUILD
  46static void board_init_ddr(void)
  47{
  48struct emif_regs pxm2_ddr3_emif_reg_data = {
  49        .sdram_config = 0x41805332,
  50        .sdram_tim1 = 0x666b3c9,
  51        .sdram_tim2 = 0x243631ca,
  52        .sdram_tim3 = 0x33f,
  53        .emif_ddr_phy_ctlr_1 = 0x100005,
  54        .zq_config = 0,
  55        .ref_ctrl = 0x81a,
  56};
  57
  58struct ddr_data pxm2_ddr3_data = {
  59        .datardsratio0 = 0x81204812,
  60        .datawdsratio0 = 0,
  61        .datafwsratio0 = 0x8020080,
  62        .datawrsratio0 = 0x4010040,
  63};
  64
  65struct cmd_control pxm2_ddr3_cmd_ctrl_data = {
  66        .cmd0csratio = 0x80,
  67        .cmd0iclkout = 0,
  68        .cmd1csratio = 0x80,
  69        .cmd1iclkout = 0,
  70        .cmd2csratio = 0x80,
  71        .cmd2iclkout = 0,
  72};
  73
  74const struct ctrl_ioregs ioregs = {
  75        .cm0ioctl               = DDR_IOCTRL_VAL,
  76        .cm1ioctl               = DDR_IOCTRL_VAL,
  77        .cm2ioctl               = DDR_IOCTRL_VAL,
  78        .dt0ioctl               = DDR_IOCTRL_VAL,
  79        .dt1ioctl               = DDR_IOCTRL_VAL,
  80};
  81
  82        config_ddr(DDR_PLL_FREQ, &ioregs, &pxm2_ddr3_data,
  83                   &pxm2_ddr3_cmd_ctrl_data, &pxm2_ddr3_emif_reg_data, 0);
  84}
  85
  86/*
  87 * voltage switching for MPU frequency switching.
  88 * @module = mpu - 0, core - 1
  89 * @vddx_op_vol_sel = vdd voltage to set
  90 */
  91
  92#define MPU     0
  93#define CORE    1
  94
  95int voltage_update(unsigned int module, unsigned char vddx_op_vol_sel)
  96{
  97        uchar buf[4];
  98        unsigned int reg_offset;
  99
 100        if (module == MPU)
 101                reg_offset = PMIC_VDD1_OP_REG;
 102        else
 103                reg_offset = PMIC_VDD2_OP_REG;
 104
 105        /* Select VDDx OP   */
 106        if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 107                return 1;
 108
 109        buf[0] &= ~PMIC_OP_REG_CMD_MASK;
 110
 111        if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 112                return 1;
 113
 114        /* Configure VDDx OP  Voltage */
 115        if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 116                return 1;
 117
 118        buf[0] &= ~PMIC_OP_REG_SEL_MASK;
 119        buf[0] |= vddx_op_vol_sel;
 120
 121        if (i2c_write(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 122                return 1;
 123
 124        if (i2c_read(PMIC_CTRL_I2C_ADDR, reg_offset, 1, buf, 1))
 125                return 1;
 126
 127        if ((buf[0] & PMIC_OP_REG_SEL_MASK) != vddx_op_vol_sel)
 128                return 1;
 129
 130        return 0;
 131}
 132
 133#define OSC     (V_OSCK/1000000)
 134
 135const struct dpll_params dpll_mpu_pxm2 = {
 136                720, OSC-1, 1, -1, -1, -1, -1};
 137
 138void spl_siemens_board_init(void)
 139{
 140        uchar buf[4];
 141        /*
 142         * pxm2 PMIC code.  All boards currently want an MPU voltage
 143         * of 1.2625V and CORE voltage of 1.1375V to operate at
 144         * 720MHz.
 145         */
 146        if (i2c_probe(PMIC_CTRL_I2C_ADDR))
 147                return;
 148
 149        /* VDD1/2 voltage selection register access by control i/f */
 150        if (i2c_read(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
 151                return;
 152
 153        buf[0] |= PMIC_DEVCTRL_REG_SR_CTL_I2C_SEL_CTL_I2C;
 154
 155        if (i2c_write(PMIC_CTRL_I2C_ADDR, PMIC_DEVCTRL_REG, 1, buf, 1))
 156                return;
 157
 158        /* Frequency switching for OPP 120 */
 159        if (voltage_update(MPU, PMIC_OP_REG_SEL_1_2_6) ||
 160            voltage_update(CORE, PMIC_OP_REG_SEL_1_1_3)) {
 161                printf("voltage update failed\n");
 162        }
 163}
 164#endif /* if def CONFIG_SPL_BUILD */
 165
 166int read_eeprom(void)
 167{
 168        /* nothing ToDo here for this board */
 169
 170        return 0;
 171}
 172
 173#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 174        (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 175static void cpsw_control(int enabled)
 176{
 177        /* VTP can be added here */
 178
 179        return;
 180}
 181
 182static struct cpsw_slave_data cpsw_slaves[] = {
 183        {
 184                .slave_reg_ofs  = 0x208,
 185                .sliver_reg_ofs = 0xd80,
 186                .phy_addr       = 0,
 187                .phy_if         = PHY_INTERFACE_MODE_RMII,
 188        },
 189        {
 190                .slave_reg_ofs  = 0x308,
 191                .sliver_reg_ofs = 0xdc0,
 192                .phy_addr       = 1,
 193                .phy_if         = PHY_INTERFACE_MODE_RMII,
 194        },
 195};
 196
 197static struct cpsw_platform_data cpsw_data = {
 198        .mdio_base              = CPSW_MDIO_BASE,
 199        .cpsw_base              = CPSW_BASE,
 200        .mdio_div               = 0xff,
 201        .channels               = 4,
 202        .cpdma_reg_ofs          = 0x800,
 203        .slaves                 = 1,
 204        .slave_data             = cpsw_slaves,
 205        .ale_reg_ofs            = 0xd00,
 206        .ale_entries            = 1024,
 207        .host_port_reg_ofs      = 0x108,
 208        .hw_stats_reg_ofs       = 0x900,
 209        .bd_ram_ofs             = 0x2000,
 210        .mac_control            = (1 << 5),
 211        .control                = cpsw_control,
 212        .host_port_num          = 0,
 213        .version                = CPSW_CTRL_VERSION_2,
 214};
 215#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
 216
 217#if defined(CONFIG_DRIVER_TI_CPSW) || \
 218        (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
 219int board_eth_init(bd_t *bis)
 220{
 221        int n = 0;
 222#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 223        (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 224        struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 225#ifdef CONFIG_FACTORYSET
 226        int rv;
 227        if (!is_valid_ethaddr(factory_dat.mac))
 228                printf("Error: no valid mac address\n");
 229        else
 230                eth_env_set_enetaddr("ethaddr", factory_dat.mac);
 231#endif /* #ifdef CONFIG_FACTORYSET */
 232
 233        /* Set rgmii mode and enable rmii clock to be sourced from chip */
 234        writel(RGMII_MODE_ENABLE  | RGMII_INT_DELAY, &cdev->miisel);
 235
 236        rv = cpsw_register(&cpsw_data);
 237        if (rv < 0)
 238                printf("Error %d registering CPSW switch\n", rv);
 239        else
 240                n += rv;
 241#endif
 242        return n;
 243}
 244#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
 245
 246#if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
 247static struct da8xx_panel lcd_panels[] = {
 248        /* AUO G156XW01 V1 */
 249        [0] = {
 250                .name = "AUO_G156XW01_V1",
 251                .width = 1376,
 252                .height = 768,
 253                .hfp = 14,
 254                .hbp = 64,
 255                .hsw = 56,
 256                .vfp = 1,
 257                .vbp = 28,
 258                .vsw = 3,
 259                .pxl_clk = 60000000,
 260                .invert_pxl_clk = 0,
 261        },
 262        /* AUO B101EVN06 V0 */
 263        [1] = {
 264                .name = "AUO_B101EVN06_V0",
 265                .width = 1280,
 266                .height = 800,
 267                .hfp = 52,
 268                .hbp = 84,
 269                .hsw = 36,
 270                .vfp = 3,
 271                .vbp = 14,
 272                .vsw = 6,
 273                .pxl_clk = 60000000,
 274                .invert_pxl_clk = 0,
 275        },
 276        /*
 277         * Settings from factoryset
 278         * stored in EEPROM
 279         */
 280        [2] = {
 281                .name = "factoryset",
 282                .width = 0,
 283                .height = 0,
 284                .hfp = 0,
 285                .hbp = 0,
 286                .hsw = 0,
 287                .vfp = 0,
 288                .vbp = 0,
 289                .vsw = 0,
 290                .pxl_clk = 60000000,
 291                .invert_pxl_clk = 0,
 292        },
 293};
 294
 295static const struct display_panel disp_panel = {
 296        WVGA,
 297        32,
 298        16,
 299        COLOR_ACTIVE,
 300};
 301
 302static const struct lcd_ctrl_config lcd_cfg = {
 303        &disp_panel,
 304        .ac_bias                = 255,
 305        .ac_bias_intrpt         = 0,
 306        .dma_burst_sz           = 16,
 307        .bpp                    = 32,
 308        .fdd                    = 0x80,
 309        .tft_alt_mode           = 0,
 310        .stn_565_mode           = 0,
 311        .mono_8bit_mode         = 0,
 312        .invert_line_clock      = 1,
 313        .invert_frm_clock       = 1,
 314        .sync_edge              = 0,
 315        .sync_ctrl              = 1,
 316        .raster_order           = 0,
 317};
 318
 319static int set_gpio(int gpio, int state)
 320{
 321        gpio_request(gpio, "temp");
 322        gpio_direction_output(gpio, state);
 323        gpio_set_value(gpio, state);
 324        gpio_free(gpio);
 325        return 0;
 326}
 327
 328static int enable_backlight(void)
 329{
 330        set_gpio(BOARD_LCD_POWER, 1);
 331        set_gpio(BOARD_BACK_LIGHT, 1);
 332        set_gpio(BOARD_TOUCH_POWER, 1);
 333        return 0;
 334}
 335
 336static int enable_pwm(void)
 337{
 338        struct pwmss_regs *pwmss = (struct pwmss_regs *)PWMSS0_BASE;
 339        struct pwmss_ecap_regs *ecap;
 340        int ticks = PWM_TICKS;
 341        int duty = PWM_DUTY;
 342
 343        ecap = (struct pwmss_ecap_regs *)AM33XX_ECAP0_BASE;
 344        /* enable clock */
 345        setbits_le32(&pwmss->clkconfig, ECAP_CLK_EN);
 346        /* TimeStam Counter register */
 347        writel(0xdb9, &ecap->tsctr);
 348        /* config period */
 349        writel(ticks - 1, &ecap->cap3);
 350        writel(ticks - 1, &ecap->cap1);
 351        setbits_le16(&ecap->ecctl2,
 352                     (ECTRL2_MDSL_ECAP | ECTRL2_SYNCOSEL_MASK | 0xd0));
 353        /* config duty */
 354        writel(duty, &ecap->cap2);
 355        writel(duty, &ecap->cap4);
 356        /* start */
 357        setbits_le16(&ecap->ecctl2, ECTRL2_CTRSTP_FREERUN);
 358        return 0;
 359}
 360
 361static struct dpll_regs dpll_lcd_regs = {
 362        .cm_clkmode_dpll = CM_WKUP + 0x98,
 363        .cm_idlest_dpll = CM_WKUP + 0x48,
 364        .cm_clksel_dpll = CM_WKUP + 0x54,
 365};
 366
 367/* no console on this board */
 368int board_cfb_skip(void)
 369{
 370        return 1;
 371}
 372
 373#define PLL_GET_M(v) ((v >> 8) & 0x7ff)
 374#define PLL_GET_N(v) (v & 0x7f)
 375
 376static int get_clk(struct dpll_regs *dpll_regs)
 377{
 378        unsigned int val;
 379        unsigned int m, n;
 380        int f = 0;
 381
 382        val = readl(dpll_regs->cm_clksel_dpll);
 383        m = PLL_GET_M(val);
 384        n = PLL_GET_N(val);
 385        f = (m * V_OSCK) / n;
 386
 387        return f;
 388};
 389
 390int clk_get(int clk)
 391{
 392        return get_clk(&dpll_lcd_regs);
 393};
 394
 395static int conf_disp_pll(int m, int n)
 396{
 397        struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
 398        struct cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL;
 399        struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
 400
 401        u32 *const clk_domains[] = {
 402                &cmper->lcdclkctrl,
 403                0
 404        };
 405        u32 *const clk_modules_explicit_en[] = {
 406                &cmper->lcdclkctrl,
 407                &cmper->lcdcclkstctrl,
 408                &cmper->epwmss0clkctrl,
 409                0
 410        };
 411        do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
 412        writel(0x0, &cmdpll->clklcdcpixelclk);
 413
 414        do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
 415
 416        return 0;
 417}
 418
 419static int board_video_init(void)
 420{
 421        conf_disp_pll(24, 1);
 422        if (factory_dat.pxm50)
 423                da8xx_video_init(&lcd_panels[0], &lcd_cfg, lcd_cfg.bpp);
 424        else
 425                da8xx_video_init(&lcd_panels[1], &lcd_cfg, lcd_cfg.bpp);
 426
 427        enable_pwm();
 428        enable_backlight();
 429
 430        return 0;
 431}
 432#endif
 433
 434#ifdef CONFIG_BOARD_LATE_INIT
 435int board_late_init(void)
 436{
 437        int ret;
 438
 439        omap_nand_switch_ecc(1, 8);
 440
 441#ifdef CONFIG_FACTORYSET
 442        if (factory_dat.asn[0] != 0) {
 443                char tmp[2 * MAX_STRING_LENGTH + 2];
 444
 445                if (strncmp((const char *)factory_dat.asn, "PXM50", 5) == 0)
 446                        factory_dat.pxm50 = 1;
 447                else
 448                        factory_dat.pxm50 = 0;
 449                sprintf(tmp, "%s_%s", factory_dat.asn,
 450                        factory_dat.comp_version);
 451                ret = env_set("boardid", tmp);
 452                if (ret)
 453                        printf("error setting board id\n");
 454        } else {
 455                factory_dat.pxm50 = 1;
 456                ret = env_set("boardid", "PXM50_1.0");
 457                if (ret)
 458                        printf("error setting board id\n");
 459        }
 460        debug("PXM50: %d\n", factory_dat.pxm50);
 461#endif
 462
 463        return 0;
 464}
 465#endif
 466
 467#include "../common/board.c"
 468