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 <log.h>
  11#include <asm/gpio.h>
  12#include <asm/arch/pinmux.h>
  13#include <asm/arch/power.h>
  14#include <asm/arch/mipi_dsim.h>
  15#include <linux/delay.h>
  16#include <power/pmic.h>
  17#include <power/max77686_pmic.h>
  18#include <power/battery.h>
  19#include <power/max77693_pmic.h>
  20#include <power/max77693_muic.h>
  21#include <power/max77693_fg.h>
  22#include <libtizen.h>
  23#include <errno.h>
  24#include <usb.h>
  25#include <usb/dwc2_udc.h>
  26#include <usb_mass_storage.h>
  27
  28static unsigned int board_rev = -1;
  29
  30static inline u32 get_model_rev(void);
  31
  32static void check_hw_revision(void)
  33{
  34        int modelrev = 0;
  35        char str[12];
  36        int i;
  37
  38        /*
  39         * GPM1[1:0]: MODEL_REV[1:0]
  40         * Don't set as pull-none for these N/C pin.
  41         * TRM say that it may cause unexcepted state and leakage current.
  42         * and pull-none is only for output function.
  43         */
  44        for (i = 0; i < 2; i++) {
  45                int pin = i + EXYNOS4X12_GPIO_M10;
  46
  47                sprintf(str, "model_rev%d", i);
  48                gpio_request(pin, str);
  49                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  50        }
  51
  52        /* GPM1[5:2]: HW_REV[3:0] */
  53        for (i = 0; i < 4; i++) {
  54                int pin = i + EXYNOS4X12_GPIO_M12;
  55
  56                sprintf(str, "hw_rev%d", i);
  57                gpio_request(pin, str);
  58                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  59                gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
  60        }
  61
  62        /* GPM1[1:0]: MODEL_REV[1:0] */
  63        for (i = 0; i < 2; i++)
  64                modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
  65
  66        /* board_rev[15:8] = model */
  67        board_rev = modelrev << 8;
  68}
  69
  70u32 get_board_rev(void)
  71{
  72        return board_rev;
  73}
  74
  75static inline u32 get_model_rev(void)
  76{
  77        return (board_rev >> 8) & 0xff;
  78}
  79
  80static void board_external_gpio_init(void)
  81{
  82        /*
  83         * some pins which in alive block are connected with external pull-up
  84         * but it's default setting is pull-down.
  85         * if that pin set as input then that floated
  86         */
  87
  88        gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */
  89        gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */
  90        gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/
  91        gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/
  92        gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */
  93        gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */
  94        gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */
  95        gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */
  96        gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */
  97        gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */
  98        gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */
  99        gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */
 100}
 101
 102int exynos_early_init_f(void)
 103{
 104        board_external_gpio_init();
 105
 106        return 0;
 107}
 108
 109int exynos_init(void)
 110{
 111        struct exynos4_power *pwr =
 112                (struct exynos4_power *)samsung_get_base_power();
 113
 114        check_hw_revision();
 115        printf("HW Revision:\t0x%04x\n", board_rev);
 116
 117        /*
 118         * First bootloader on the TRATS2 platform uses
 119         * INFORM4 and INFORM5 registers for recovery
 120         *
 121         * To indicate correct boot chain - those two
 122         * registers must be cleared out
 123         */
 124        writel(0, &pwr->inform4);
 125        writel(0, &pwr->inform5);
 126
 127        return 0;
 128}
 129
 130int exynos_power_init(void)
 131{
 132#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 133        int chrg;
 134        struct power_battery *pb;
 135        struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
 136
 137        pmic_init_max77693(I2C_10);     /* I2C adapter 10 - bus name soft1 */
 138        power_muic_init(I2C_10);        /* I2C adapter 10 - bus name soft1 */
 139        power_fg_init(I2C_9);           /* I2C adapter 9 - bus name soft0 */
 140        power_bat_init(0);
 141
 142        p_chrg = pmic_get("MAX77693_PMIC");
 143        if (!p_chrg) {
 144                puts("MAX77693_PMIC: Not found\n");
 145                return -ENODEV;
 146        }
 147
 148        p_muic = pmic_get("MAX77693_MUIC");
 149        if (!p_muic) {
 150                puts("MAX77693_MUIC: Not found\n");
 151                return -ENODEV;
 152        }
 153
 154        p_fg = pmic_get("MAX77693_FG");
 155        if (!p_fg) {
 156                puts("MAX17042_FG: Not found\n");
 157                return -ENODEV;
 158        }
 159
 160        if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
 161                puts("No battery detected\n");
 162
 163        p_bat = pmic_get("BAT_TRATS2");
 164        if (!p_bat) {
 165                puts("BAT_TRATS2: Not found\n");
 166                return -ENODEV;
 167        }
 168
 169        p_fg->parent =  p_bat;
 170        p_chrg->parent = p_bat;
 171        p_muic->parent = p_bat;
 172
 173        p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
 174
 175        pb = p_bat->pbat;
 176        chrg = p_muic->chrg->chrg_type(p_muic);
 177        debug("CHARGER TYPE: %d\n", chrg);
 178
 179        if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
 180                puts("No battery detected\n");
 181                return 0;
 182        }
 183
 184        p_fg->fg->fg_battery_check(p_fg, p_bat);
 185
 186        if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
 187                puts("CHARGE Battery !\n");
 188#endif
 189        return 0;
 190}
 191
 192#ifdef CONFIG_USB_GADGET
 193static int s5pc210_phy_control(int on)
 194{
 195#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 196        int ret = 0;
 197        unsigned int val;
 198        struct pmic *p, *p_pmic, *p_muic;
 199
 200        p_pmic = pmic_get("MAX77686_PMIC");
 201        if (!p_pmic)
 202                return -ENODEV;
 203
 204        if (pmic_probe(p_pmic))
 205                return -1;
 206
 207        p_muic = pmic_get("MAX77693_MUIC");
 208        if (!p_muic)
 209                return -ENODEV;
 210
 211        if (pmic_probe(p_muic))
 212                return -1;
 213
 214        if (on) {
 215                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
 216                if (ret)
 217                        return -1;
 218
 219                p = pmic_get("MAX77693_PMIC");
 220                if (!p)
 221                        return -ENODEV;
 222
 223                if (pmic_probe(p))
 224                        return -1;
 225
 226                /* SAFEOUT */
 227                ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
 228                if (ret)
 229                        return -1;
 230
 231                val |= MAX77693_ENSAFEOUT1;
 232                ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
 233                if (ret)
 234                        return -1;
 235
 236                /* PATH: USB */
 237                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 238                        MAX77693_MUIC_CTRL1_DN1DP2);
 239
 240        } else {
 241                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
 242                if (ret)
 243                        return -1;
 244
 245                /* PATH: UART */
 246                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 247                        MAX77693_MUIC_CTRL1_UT1UR2);
 248        }
 249
 250        if (ret)
 251                return -1;
 252#endif
 253        return 0;
 254}
 255
 256struct dwc2_plat_otg_data s5pc210_otg_data = {
 257        .phy_control    = s5pc210_phy_control,
 258        .regs_phy       = EXYNOS4X12_USBPHY_BASE,
 259        .regs_otg       = EXYNOS4X12_USBOTG_BASE,
 260        .usb_phy_ctrl   = EXYNOS4X12_USBPHY_CONTROL,
 261        .usb_flags      = PHY0_SLEEP,
 262};
 263
 264int board_usb_init(int index, enum usb_init_type init)
 265{
 266        debug("USB_udc_probe\n");
 267        return dwc2_udc_probe(&s5pc210_otg_data);
 268}
 269
 270int g_dnl_board_usb_cable_connected(void)
 271{
 272#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 273        struct pmic *muic = pmic_get("MAX77693_MUIC");
 274        if (!muic)
 275                return 0;
 276
 277        return !!muic->chrg->chrg_type(muic);
 278#else
 279        return false;
 280#endif
 281}
 282#endif
 283
 284/*
 285 * LCD
 286 */
 287
 288#ifdef CONFIG_LCD
 289int mipi_power(void)
 290{
 291#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 292        struct pmic *p = pmic_get("MAX77686_PMIC");
 293
 294        /* LDO8 VMIPI_1.0V_AP */
 295        max77686_set_ldo_mode(p, 8, OPMODE_ON);
 296        /* LDO10 VMIPI_1.8V_AP */
 297        max77686_set_ldo_mode(p, 10, OPMODE_ON);
 298#endif
 299
 300        return 0;
 301}
 302
 303void exynos_lcd_power_on(void)
 304{
 305#ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
 306        struct pmic *p = pmic_get("MAX77686_PMIC");
 307
 308        /* LCD_2.2V_EN: GPC0[1] */
 309        gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en");
 310        gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);
 311        gpio_direction_output(EXYNOS4X12_GPIO_C01, 1);
 312
 313        /* LDO25 VCC_3.1V_LCD */
 314        pmic_probe(p);
 315        max77686_set_ldo_voltage(p, 25, 3100000);
 316        max77686_set_ldo_mode(p, 25, OPMODE_LPM);
 317#endif
 318}
 319
 320void exynos_reset_lcd(void)
 321{
 322        /* reset lcd */
 323        gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset");
 324        gpio_direction_output(EXYNOS4X12_GPIO_F21, 0);
 325        udelay(10);
 326        gpio_set_value(EXYNOS4X12_GPIO_F21, 1);
 327}
 328
 329void exynos_lcd_misc_init(vidinfo_t *vid)
 330{
 331#ifdef CONFIG_TIZEN
 332        get_tizen_logo_info(vid);
 333#endif
 334#ifdef CONFIG_S6E8AX0
 335        s6e8ax0_init();
 336#endif
 337}
 338#endif /* LCD */
 339