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// 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
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