LXR uboot/board/samsung/trats2/trats2.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
   4 * Sanghee Kim <sh0130.kim@samsung.com>
   5 * Piotr Wilczek <p.wilczek@samsung.com>
   6 */
   7
   8#include <common.h>
   9#include <lcd.h>
  10#include <asm/gpio.h>
  11#include <asm/arch/pinmux.h>
  12#include <asm/arch/power.h>
  13#include <asm/arch/mipi_dsim.h>
  14#include <power/pmic.h>
  15#include <power/max77686_pmic.h>
  16#include <power/battery.h>
  17#include <power/max77693_pmic.h>
  18#include <power/max77693_muic.h>
  19#include <power/max77693_fg.h>
  20#include <libtizen.h>
  21#include <errno.h>
  22#include <usb.h>
  23#include <usb/dwc2_udc.h>
  24#include <usb_mass_storage.h>
  25
  26static unsigned int board_rev = -1;
  27
  28static inline u32 get_model_rev(void);
  29
  30static void check_hw_revision(void)
  31{
  32        int modelrev = 0;
  33        char str[12];
  34        int i;
  35
  36        /*
  37         * GPM1[1:0]: MODEL_REV[1:0]
  38         * Don't set as pull-none for these N/C pin.
  39         * TRM say that it may cause unexcepted state and leakage current.
  40         * and pull-none is only for output function.
  41         */
  42        for (i = 0; i < 2; i++) {
  43                int pin = i + EXYNOS4X12_GPIO_M10;
  44
  45                sprintf(str, "model_rev%d", i);
  46                gpio_request(pin, str);
  47                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  48        }
  49
  50        /* GPM1[5:2]: HW_REV[3:0] */
  51        for (i = 0; i < 4; i++) {
  52                int pin = i + EXYNOS4X12_GPIO_M12;
  53
  54                sprintf(str, "hw_rev%d", i);
  55                gpio_request(pin, str);
  56                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  57                gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
  58        }
  59
  60        /* GPM1[1:0]: MODEL_REV[1:0] */
  61        for (i = 0; i < 2; i++)
  62                modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
  63
  64        /* board_rev[15:8] = model */
  65        board_rev = modelrev << 8;
  66}
  67
  68u32 get_board_rev(void)
  69{
  70        return board_rev;
  71}
  72
  73static inline u32 get_model_rev(void)
  74{
  75        return (board_rev >> 8) & 0xff;
  76}
  77
  78static void board_external_gpio_init(void)
  79{
  80        /*
  81         * some pins which in alive block are connected with external pull-up
  82         * but it's default setting is pull-down.
  83         * if that pin set as input then that floated
  84         */
  85
  86        gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */
  87        gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */
  88        gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/
  89        gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/
  90        gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */
  91        gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */
  92        gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */
  93        gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */
  94        gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */
  95        gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */
  96        gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */
  97        gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */
  98}
  99
 100int exynos_early_init_f(void)
 101{
 102        board_external_gpio_init();
 103
 104        return 0;
 105}
 106
 107int exynos_init(void)
 108{
 109        struct exynos4_power *pwr =
 110                (struct exynos4_power *)samsung_get_base_power();
 111
 112        check_hw_revision();
 113        printf("HW Revision:\t0x%04x\n", board_rev);
 114
 115        /*
 116         * First bootloader on the TRATS2 platform uses
 117         * INFORM4 and INFORM5 registers for recovery
 118         *
 119         * To indicate correct boot chain - those two
 120         * registers must be cleared out
 121         */
 122        writel(0, &pwr->inform4);
 123        writel(0, &pwr->inform5);
 124
 125        return 0;
 126}
 127
 128int exynos_power_init(void)
 129{
 130#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 131        int chrg;
 132        struct power_battery *pb;
 133        struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
 134
 135        pmic_init_max77693(I2C_10);     /* I2C adapter 10 - bus name soft1 */
 136        power_muic_init(I2C_10);        /* I2C adapter 10 - bus name soft1 */
 137        power_fg_init(I2C_9);           /* I2C adapter 9 - bus name soft0 */
 138        power_bat_init(0);
 139
 140        p_chrg = pmic_get("MAX77693_PMIC");
 141        if (!p_chrg) {
 142                puts("MAX77693_PMIC: Not found\n");
 143                return -ENODEV;
 144        }
 145
 146        p_muic = pmic_get("MAX77693_MUIC");
 147        if (!p_muic) {
 148                puts("MAX77693_MUIC: Not found\n");
 149                return -ENODEV;
 150        }
 151
 152        p_fg = pmic_get("MAX77693_FG");
 153        if (!p_fg) {
 154                puts("MAX17042_FG: Not found\n");
 155                return -ENODEV;
 156        }
 157
 158        if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
 159                puts("No battery detected\n");
 160
 161        p_bat = pmic_get("BAT_TRATS2");
 162        if (!p_bat) {
 163                puts("BAT_TRATS2: Not found\n");
 164                return -ENODEV;
 165        }
 166
 167        p_fg->parent =  p_bat;
 168        p_chrg->parent = p_bat;
 169        p_muic->parent = p_bat;
 170
 171        p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
 172
 173        pb = p_bat->pbat;
 174        chrg = p_muic->chrg->chrg_type(p_muic);
 175        debug("CHARGER TYPE: %d\n", chrg);
 176
 177        if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
 178                puts("No battery detected\n");
 179                return 0;
 180        }
 181
 182        p_fg->fg->fg_battery_check(p_fg, p_bat);
 183
 184        if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
 185                puts("CHARGE Battery !\n");
 186#endif
 187        return 0;
 188}
 189
 190#ifdef CONFIG_USB_GADGET
 191static int s5pc210_phy_control(int on)
 192{
 193#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 194        int ret = 0;
 195        unsigned int val;
 196        struct pmic *p, *p_pmic, *p_muic;
 197
 198        p_pmic = pmic_get("MAX77686_PMIC");
 199        if (!p_pmic)
 200                return -ENODEV;
 201
 202        if (pmic_probe(p_pmic))
 203                return -1;
 204
 205        p_muic = pmic_get("MAX77693_MUIC");
 206        if (!p_muic)
 207                return -ENODEV;
 208
 209        if (pmic_probe(p_muic))
 210                return -1;
 211
 212        if (on) {
 213                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
 214                if (ret)
 215                        return -1;
 216
 217                p = pmic_get("MAX77693_PMIC");
 218                if (!p)
 219                        return -ENODEV;
 220
 221                if (pmic_probe(p))
 222                        return -1;
 223
 224                /* SAFEOUT */
 225                ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
 226                if (ret)
 227                        return -1;
 228
 229                val |= MAX77693_ENSAFEOUT1;
 230                ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
 231                if (ret)
 232                        return -1;
 233
 234                /* PATH: USB */
 235                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 236                        MAX77693_MUIC_CTRL1_DN1DP2);
 237
 238        } else {
 239                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
 240                if (ret)
 241                        return -1;
 242
 243                /* PATH: UART */
 244                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 245                        MAX77693_MUIC_CTRL1_UT1UR2);
 246        }
 247
 248        if (ret)
 249                return -1;
 250#endif
 251        return 0;
 252}
 253
 254struct dwc2_plat_otg_data s5pc210_otg_data = {
 255        .phy_control    = s5pc210_phy_control,
 256        .regs_phy       = EXYNOS4X12_USBPHY_BASE,
 257        .regs_otg       = EXYNOS4X12_USBOTG_BASE,
 258        .usb_phy_ctrl   = EXYNOS4X12_USBPHY_CONTROL,
 259        .usb_flags      = PHY0_SLEEP,
 260};
 261
 262int board_usb_init(int index, enum usb_init_type init)
 263{
 264        debug("USB_udc_probe\n");
 265        return dwc2_udc_probe(&s5pc210_otg_data);
 266}
 267
 268int g_dnl_board_usb_cable_connected(void)
 269{
 270#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 271        struct pmic *muic = pmic_get("MAX77693_MUIC");
 272        if (!muic)
 273                return 0;
 274
 275        return !!muic->chrg->chrg_type(muic);
 276#else
 277        return false;
 278#endif
 279}
 280#endif
 281
 282/*
 283 * LCD
 284 */
 285
 286#ifdef CONFIG_LCD
 287int mipi_power(void)
 288{
 289#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 290        struct pmic *p = pmic_get("MAX77686_PMIC");
 291
 292        /* LDO8 VMIPI_1.0V_AP */
 293        max77686_set_ldo_mode(p, 8, OPMODE_ON);
 294        /* LDO10 VMIPI_1.8V_AP */
 295        max77686_set_ldo_mode(p, 10, OPMODE_ON);
 296#endif
 297
 298        return 0;
 299}
 300
 301void exynos_lcd_power_on(void)
 302{
 303#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 304        struct pmic *p = pmic_get("MAX77686_PMIC");
 305
 306        /* LCD_2.2V_EN: GPC0[1] */
 307        gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en");
 308        gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);
 309        gpio_direction_output(EXYNOS4X12_GPIO_C01, 1);
 310
 311        /* LDO25 VCC_3.1V_LCD */
 312        pmic_probe(p);
 313        max77686_set_ldo_voltage(p, 25, 3100000);
 314        max77686_set_ldo_mode(p, 25, OPMODE_LPM);
 315#endif
 316}
 317
 318void exynos_reset_lcd(void)
 319{
 320        /* reset lcd */
 321        gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset");
 322        gpio_direction_output(EXYNOS4X12_GPIO_F21, 0);
 323        udelay(10);
 324        gpio_set_value(EXYNOS4X12_GPIO_F21, 1);
 325}
 326
 327void exynos_lcd_misc_init(vidinfo_t *vid)
 328{
 329#ifdef CONFIG_TIZEN
 330        get_tizen_logo_info(vid);
 331#endif
 332#ifdef CONFIG_S6E8AX0
 333        s6e8ax0_init();
 334#endif
 335}
 336#endif /* LCD */
 337