// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved. * Sanghee Kim * Piotr Wilczek */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static unsigned int board_rev = -1; static inline u32 get_model_rev(void); static void check_hw_revision(void) { int modelrev = 0; char str[12]; int i; /* * GPM1[1:0]: MODEL_REV[1:0] * Don't set as pull-none for these N/C pin. * TRM say that it may cause unexcepted state and leakage current. * and pull-none is only for output function. */ for (i = 0; i < 2; i++) { int pin = i + EXYNOS4X12_GPIO_M10; sprintf(str, "model_rev%d", i); gpio_request(pin, str); gpio_cfg_pin(pin, S5P_GPIO_INPUT); } /* GPM1[5:2]: HW_REV[3:0] */ for (i = 0; i < 4; i++) { int pin = i + EXYNOS4X12_GPIO_M12; sprintf(str, "hw_rev%d", i); gpio_request(pin, str); gpio_cfg_pin(pin, S5P_GPIO_INPUT); gpio_set_pull(pin, S5P_GPIO_PULL_NONE); } /* GPM1[1:0]: MODEL_REV[1:0] */ for (i = 0; i < 2; i++) modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i); /* board_rev[15:8] = model */ board_rev = modelrev << 8; } #ifdef CONFIG_REVISION_TAG u32 get_board_rev(void) { return board_rev; } #endif static inline u32 get_model_rev(void) { return (board_rev >> 8) & 0xff; } static void board_external_gpio_init(void) { /* * some pins which in alive block are connected with external pull-up * but it's default setting is pull-down. * if that pin set as input then that floated */ gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */ gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */ gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/ gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/ gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */ gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */ gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */ gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */ gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */ gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */ gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */ gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */ } int exynos_early_init_f(void) { board_external_gpio_init(); return 0; } int exynos_init(void) { struct exynos4_power *pwr = (struct exynos4_power *)samsung_get_base_power(); check_hw_revision(); printf("HW Revision:\t0x%04x\n", board_rev); /* * First bootloader on the TRATS2 platform uses * INFORM4 and INFORM5 registers for recovery * * To indicate correct boot chain - those two * registers must be cleared out */ writel(0, &pwr->inform4); writel(0, &pwr->inform5); return 0; } int exynos_power_init(void) { #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */ int chrg; struct power_battery *pb; struct pmic *p_chrg, *p_muic, *p_fg, *p_bat; pmic_init_max77693(I2C_10); /* I2C adapter 10 - bus name soft1 */ power_muic_init(I2C_10); /* I2C adapter 10 - bus name soft1 */ power_fg_init(I2C_9); /* I2C adapter 9 - bus name soft0 */ power_bat_init(0); p_chrg = pmic_get("MAX77693_PMIC"); if (!p_chrg) { puts("MAX77693_PMIC: Not found\n"); return -ENODEV; } p_muic = pmic_get("MAX77693_MUIC"); if (!p_muic) { puts("MAX77693_MUIC: Not found\n"); return -ENODEV; } p_fg = pmic_get("MAX77693_FG"); if (!p_fg) { puts("MAX17042_FG: Not found\n"); return -ENODEV; } if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0) puts("No battery detected\n"); p_bat = pmic_get("BAT_TRATS2"); if (!p_bat) { puts("BAT_TRATS2: Not found\n"); return -ENODEV; } p_fg->parent = p_bat; p_chrg->parent = p_bat; p_muic->parent = p_bat; p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic); pb = p_bat->pbat; chrg = p_muic->chrg->chrg_type(p_muic); debug("CHARGER TYPE: %d\n", chrg); if (!p_chrg->chrg->chrg_bat_present(p_chrg)) { puts("No battery detected\n"); return 0; } p_fg->fg->fg_battery_check(p_fg, p_bat); if (pb->bat->state == CHARGE && chrg == CHARGER_USB) puts("CHARGE Battery !\n"); #endif return 0; } #ifdef CONFIG_USB_GADGET static int s5pc210_phy_control(int on) { #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */ int ret = 0; unsigned int val; struct pmic *p, *p_pmic, *p_muic; p_pmic = pmic_get("MAX77686_PMIC"); if (!p_pmic) return -ENODEV; if (pmic_probe(p_pmic)) return -1; p_muic = pmic_get("MAX77693_MUIC"); if (!p_muic) return -ENODEV; if (pmic_probe(p_muic)) return -1; if (on) { ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON); if (ret) return -1; p = pmic_get("MAX77693_PMIC"); if (!p) return -ENODEV; if (pmic_probe(p)) return -1; /* SAFEOUT */ ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val); if (ret) return -1; val |= MAX77693_ENSAFEOUT1; ret = pmic_reg_write(p, MAX77693_SAFEOUT, val); if (ret) return -1; /* PATH: USB */ ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1, MAX77693_MUIC_CTRL1_DN1DP2); } else { ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM); if (ret) return -1; /* PATH: UART */ ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1, MAX77693_MUIC_CTRL1_UT1UR2); } if (ret) return -1; #endif return 0; } struct dwc2_plat_otg_data s5pc210_otg_data = { .phy_control = s5pc210_phy_control, .regs_phy = EXYNOS4X12_USBPHY_BASE, .regs_otg = EXYNOS4X12_USBOTG_BASE, .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL, .usb_flags = PHY0_SLEEP, }; int board_usb_init(int index, enum usb_init_type init) { debug("USB_udc_probe\n"); return dwc2_udc_probe(&s5pc210_otg_data); } int g_dnl_board_usb_cable_connected(void) { #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */ struct pmic *muic = pmic_get("MAX77693_MUIC"); if (!muic) return 0; return !!muic->chrg->chrg_type(muic); #else return false; #endif } #endif