board/samsung/trats2/trats2.c - platform/external/u-boot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
  * Sanghee Kim <sh0130.kim@samsung.com>
  * Piotr Wilczek <p.wilczek@samsung.com>
  */

 #include <common.h>
 #include <log.h>
 #include <asm/gpio.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/power.h>
 #include <asm/arch/mipi_dsim.h>
 #include <linux/delay.h>
 #include <power/pmic.h>
 #include <power/max77686_pmic.h>
 #include <power/battery.h>
 #include <power/max77693_pmic.h>
 #include <power/max77693_muic.h>
 #include <power/max77693_fg.h>
 #include <libtizen.h>
 #include <errno.h>
 #include <usb.h>
 #include <usb/dwc2_udc.h>
 #include <usb_mass_storage.h>

 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
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
	* Sanghee Kim <sh0130.kim@samsung.com>
	* Piotr Wilczek <p.wilczek@samsung.com>
	*/

	#include <common.h>
	#include <log.h>
	#include <asm/gpio.h>
	#include <asm/arch/pinmux.h>
	#include <asm/arch/power.h>
	#include <asm/arch/mipi_dsim.h>
	#include <linux/delay.h>
	#include <power/pmic.h>
	#include <power/max77686_pmic.h>
	#include <power/battery.h>
	#include <power/max77693_pmic.h>
	#include <power/max77693_muic.h>
	#include <power/max77693_fg.h>
	#include <libtizen.h>
	#include <errno.h>
	#include <usb.h>
	#include <usb/dwc2_udc.h>
	#include <usb_mass_storage.h>

	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