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 <log.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 <linux/delay.h>
  15#include <power/pmic.h>
  16#include <power/max77686_pmic.h>
  17#include <power/battery.h>
  18#include <power/max77693_pmic.h>
  19#include <power/max77693_muic.h>
  20#include <power/max77693_fg.h>
  21#include <libtizen.h>
  22#include <errno.h>
  23#include <usb.h>
  24#include <usb/dwc2_udc.h>
  25#include <usb_mass_storage.h>
  26
  27static unsigned int board_rev = -1;
  28
  29static inline u32 get_model_rev(void);
  30
  31static void check_hw_revision(void)
  32{
  33        int modelrev = 0;
  34        char str[12];
  35        int i;
  36
  37        /*
  38         * GPM1[1:0]: MODEL_REV[1:0]
  39         * Don't set as pull-none for these N/C pin.
  40         * TRM say that it may cause unexcepted state and leakage current.
  41         * and pull-none is only for output function.
  42         */
  43        for (i = 0; i < 2; i++) {
  44                int pin = i + EXYNOS4X12_GPIO_M10;
  45
  46                sprintf(str, "model_rev%d", i);
  47                gpio_request(pin, str);
  48                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  49        }
  50
  51        /* GPM1[5:2]: HW_REV[3:0] */
  52        for (i = 0; i < 4; i++) {
  53                int pin = i + EXYNOS4X12_GPIO_M12;
  54
  55                sprintf(str, "hw_rev%d", i);
  56                gpio_request(pin, str);
  57                gpio_cfg_pin(pin, S5P_GPIO_INPUT);
  58                gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
  59        }
  60
  61        /* GPM1[1:0]: MODEL_REV[1:0] */
  62        for (i = 0; i < 2; i++)
  63                modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
  64
  65        /* board_rev[15:8] = model */
  66        board_rev = modelrev << 8;
  67}
  68
  69#ifdef CONFIG_REVISION_TAG
  70u32 get_board_rev(void)
  71{
  72        return board_rev;
  73}
  74#endif
  75
  76static inline u32 get_model_rev(void)
  77{
  78        return (board_rev >> 8) & 0xff;
  79}
  80
  81static void board_external_gpio_init(void)
  82{
  83        /*
  84         * some pins which in alive block are connected with external pull-up
  85         * but it's default setting is pull-down.
  86         * if that pin set as input then that floated
  87         */
  88
  89        gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */
  90        gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */
  91        gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/
  92        gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/
  93        gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */
  94        gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */
  95        gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */
  96        gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */
  97        gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */
  98        gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */
  99        gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */
 100        gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */
 101}
 102
 103int exynos_early_init_f(void)
 104{
 105        board_external_gpio_init();
 106
 107        return 0;
 108}
 109
 110int exynos_init(void)
 111{
 112        struct exynos4_power *pwr =
 113                (struct exynos4_power *)samsung_get_base_power();
 114
 115        check_hw_revision();
 116        printf("HW Revision:\t0x%04x\n", board_rev);
 117
 118        /*
 119         * First bootloader on the TRATS2 platform uses
 120         * INFORM4 and INFORM5 registers for recovery
 121         *
 122         * To indicate correct boot chain - those two
 123         * registers must be cleared out
 124         */
 125        writel(0, &pwr->inform4);
 126        writel(0, &pwr->inform5);
 127
 128        return 0;
 129}
 130
 131int exynos_power_init(void)
 132{
 133#if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
 134        int chrg;
 135        struct power_battery *pb;
 136        struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
 137
 138        pmic_init_max77693(I2C_10);     /* I2C adapter 10 - bus name soft1 */
 139        power_muic_init(I2C_10);        /* I2C adapter 10 - bus name soft1 */
 140        power_fg_init(I2C_9);           /* I2C adapter 9 - bus name soft0 */
 141        power_bat_init(0);
 142
 143        p_chrg = pmic_get("MAX77693_PMIC");
 144        if (!p_chrg) {
 145                puts("MAX77693_PMIC: Not found\n");
 146                return -ENODEV;
 147        }
 148
 149        p_muic = pmic_get("MAX77693_MUIC");
 150        if (!p_muic) {
 151                puts("MAX77693_MUIC: Not found\n");
 152                return -ENODEV;
 153        }
 154
 155        p_fg = pmic_get("MAX77693_FG");
 156        if (!p_fg) {
 157                puts("MAX17042_FG: Not found\n");
 158                return -ENODEV;
 159        }
 160
 161        if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
 162                puts("No battery detected\n");
 163
 164        p_bat = pmic_get("BAT_TRATS2");
 165        if (!p_bat) {
 166                puts("BAT_TRATS2: Not found\n");
 167                return -ENODEV;
 168        }
 169
 170        p_fg->parent =  p_bat;
 171        p_chrg->parent = p_bat;
 172        p_muic->parent = p_bat;
 173
 174        p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
 175
 176        pb = p_bat->pbat;
 177        chrg = p_muic->chrg->chrg_type(p_muic);
 178        debug("CHARGER TYPE: %d\n", chrg);
 179
 180        if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
 181                puts("No battery detected\n");
 182                return 0;
 183        }
 184
 185        p_fg->fg->fg_battery_check(p_fg, p_bat);
 186
 187        if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
 188                puts("CHARGE Battery !\n");
 189#endif
 190        return 0;
 191}
 192
 193#ifdef CONFIG_USB_GADGET
 194static int s5pc210_phy_control(int on)
 195{
 196#if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
 197        int ret = 0;
 198        unsigned int val;
 199        struct pmic *p, *p_pmic, *p_muic;
 200
 201        p_pmic = pmic_get("MAX77686_PMIC");
 202        if (!p_pmic)
 203                return -ENODEV;
 204
 205        if (pmic_probe(p_pmic))
 206                return -1;
 207
 208        p_muic = pmic_get("MAX77693_MUIC");
 209        if (!p_muic)
 210                return -ENODEV;
 211
 212        if (pmic_probe(p_muic))
 213                return -1;
 214
 215        if (on) {
 216                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
 217                if (ret)
 218                        return -1;
 219
 220                p = pmic_get("MAX77693_PMIC");
 221                if (!p)
 222                        return -ENODEV;
 223
 224                if (pmic_probe(p))
 225                        return -1;
 226
 227                /* SAFEOUT */
 228                ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
 229                if (ret)
 230                        return -1;
 231
 232                val |= MAX77693_ENSAFEOUT1;
 233                ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
 234                if (ret)
 235                        return -1;
 236
 237                /* PATH: USB */
 238                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 239                        MAX77693_MUIC_CTRL1_DN1DP2);
 240
 241        } else {
 242                ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
 243                if (ret)
 244                        return -1;
 245
 246                /* PATH: UART */
 247                ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
 248                        MAX77693_MUIC_CTRL1_UT1UR2);
 249        }
 250
 251        if (ret)
 252                return -1;
 253#endif
 254        return 0;
 255}
 256
 257struct dwc2_plat_otg_data s5pc210_otg_data = {
 258        .phy_control    = s5pc210_phy_control,
 259        .regs_phy       = EXYNOS4X12_USBPHY_BASE,
 260        .regs_otg       = EXYNOS4X12_USBOTG_BASE,
 261        .usb_phy_ctrl   = EXYNOS4X12_USBPHY_CONTROL,
 262        .usb_flags      = PHY0_SLEEP,
 263};
 264
 265int board_usb_init(int index, enum usb_init_type init)
 266{
 267        debug("USB_udc_probe\n");
 268        return dwc2_udc_probe(&s5pc210_otg_data);
 269}
 270
 271int g_dnl_board_usb_cable_connected(void)
 272{
 273#if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
 274        struct pmic *muic = pmic_get("MAX77693_MUIC");
 275        if (!muic)
 276                return 0;
 277
 278        return !!muic->chrg->chrg_type(muic);
 279#else
 280        return false;
 281#endif
 282}
 283#endif
 284