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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/samsung/trats2/trats2.c

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/*
* Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
* Sanghee Kim <sh0130.kim@samsung.com>
* Piotr Wilczek <p.wilczek@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <lcd.h>
#include <asm/gpio.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/power.h>
#include <asm/arch/mipi_dsim.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/s3c_udc.h>
#include <usb_mass_storage.h>
DECLARE_GLOBAL_DATA_PTR;
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;
}
u32 get_board_rev(void)
{
return board_rev;
}
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 */
}
#ifdef CONFIG_SYS_I2C_INIT_BOARD
static void board_init_i2c(void)
{
int err;
/* I2C_7 */
err = exynos_pinmux_config(PERIPH_ID_I2C7, PINMUX_FLAG_NONE);
if (err) {
debug("I2C%d not configured\n", (I2C_7));
return;
}
/* I2C_8 */
gpio_request(EXYNOS4X12_GPIO_F14, "i2c8_clk");
gpio_request(EXYNOS4X12_GPIO_F15, "i2c8_data");
gpio_direction_output(EXYNOS4X12_GPIO_F14, 1);
gpio_direction_output(EXYNOS4X12_GPIO_F15, 1);
/* I2C_9 */
gpio_request(EXYNOS4X12_GPIO_M21, "i2c9_clk");
gpio_request(EXYNOS4X12_GPIO_M20, "i2c9_data");
gpio_direction_output(EXYNOS4X12_GPIO_M21, 1);
gpio_direction_output(EXYNOS4X12_GPIO_M20, 1);
}
#endif
#ifdef CONFIG_SYS_I2C_SOFT
int get_soft_i2c_scl_pin(void)
{
if (I2C_ADAP_HWNR)
return EXYNOS4X12_GPIO_M21; /* I2C9 */
else
return EXYNOS4X12_GPIO_F14; /* I2C8 */
}
int get_soft_i2c_sda_pin(void)
{
if (I2C_ADAP_HWNR)
return EXYNOS4X12_GPIO_M20; /* I2C9 */
else
return EXYNOS4X12_GPIO_F15; /* I2C8 */
}
#endif
int exynos_early_init_f(void)
{
board_external_gpio_init();
return 0;
}
static int pmic_init_max77686(void);
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)
{
int chrg;
struct power_battery *pb;
struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
#ifdef CONFIG_SYS_I2C_INIT_BOARD
board_init_i2c();
#endif
pmic_init(I2C_7); /* I2C adapter 7 - bus name s3c24x0_7 */
pmic_init_max77686();
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");
return 0;
}
#ifdef CONFIG_USB_GADGET
static int s5pc210_phy_control(int on)
{
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;
return 0;
}
struct s3c_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 s3c_udc_probe(&s5pc210_otg_data);
}
int g_dnl_board_usb_cable_connected(void)
{
struct pmic *muic = pmic_get("MAX77693_MUIC");
if (!muic)
return 0;
return !!muic->chrg->chrg_type(muic);
}
#endif
static int pmic_init_max77686(void)
{
struct pmic *p = pmic_get("MAX77686_PMIC");
if (pmic_probe(p))
return -1;
/* BUCK/LDO Output Voltage */
max77686_set_ldo_voltage(p, 21, 2800000); /* LDO21 VTF_2.8V */
max77686_set_ldo_voltage(p, 23, 3300000); /* LDO23 TSP_AVDD_3.3V*/
max77686_set_ldo_voltage(p, 24, 1800000); /* LDO24 TSP_VDD_1.8V */
/* BUCK/LDO Output Mode */
max77686_set_buck_mode(p, 1, OPMODE_STANDBY); /* BUCK1 VMIF_1.1V_AP */
max77686_set_buck_mode(p, 2, OPMODE_ON); /* BUCK2 VARM_1.0V_AP */
max77686_set_buck_mode(p, 3, OPMODE_ON); /* BUCK3 VINT_1.0V_AP */
max77686_set_buck_mode(p, 4, OPMODE_ON); /* BUCK4 VG3D_1.0V_AP */
max77686_set_buck_mode(p, 5, OPMODE_ON); /* BUCK5 VMEM_1.2V_AP */
max77686_set_buck_mode(p, 6, OPMODE_ON); /* BUCK6 VCC_SUB_1.35V*/
max77686_set_buck_mode(p, 7, OPMODE_ON); /* BUCK7 VCC_SUB_2.0V */
max77686_set_buck_mode(p, 8, OPMODE_OFF); /* VMEM_VDDF_2.85V */
max77686_set_buck_mode(p, 9, OPMODE_OFF); /* CAM_ISP_CORE_1.2V*/
max77686_set_ldo_mode(p, 1, OPMODE_LPM); /* LDO1 VALIVE_1.0V_AP*/
max77686_set_ldo_mode(p, 2, OPMODE_STANDBY); /* LDO2 VM1M2_1.2V_AP */
max77686_set_ldo_mode(p, 3, OPMODE_LPM); /* LDO3 VCC_1.8V_AP */
max77686_set_ldo_mode(p, 4, OPMODE_LPM); /* LDO4 VCC_2.8V_AP */
max77686_set_ldo_mode(p, 5, OPMODE_OFF); /* LDO5_VCC_1.8V_IO */
max77686_set_ldo_mode(p, 6, OPMODE_STANDBY); /* LDO6 VMPLL_1.0V_AP */
max77686_set_ldo_mode(p, 7, OPMODE_STANDBY); /* LDO7 VPLL_1.0V_AP */
max77686_set_ldo_mode(p, 8, OPMODE_LPM); /* LDO8 VMIPI_1.0V_AP */
max77686_set_ldo_mode(p, 9, OPMODE_OFF); /* CAM_ISP_MIPI_1.2*/
max77686_set_ldo_mode(p, 10, OPMODE_LPM); /* LDO10 VMIPI_1.8V_AP*/
max77686_set_ldo_mode(p, 11, OPMODE_STANDBY); /* LDO11 VABB1_1.8V_AP*/
max77686_set_ldo_mode(p, 12, OPMODE_LPM); /* LDO12 VUOTG_3.0V_AP*/
max77686_set_ldo_mode(p, 13, OPMODE_OFF); /* LDO13 VC2C_1.8V_AP */
max77686_set_ldo_mode(p, 14, OPMODE_STANDBY); /* VABB02_1.8V_AP */
max77686_set_ldo_mode(p, 15, OPMODE_STANDBY); /* LDO15 VHSIC_1.0V_AP*/
max77686_set_ldo_mode(p, 16, OPMODE_STANDBY); /* LDO16 VHSIC_1.8V_AP*/
max77686_set_ldo_mode(p, 17, OPMODE_OFF); /* CAM_SENSOR_CORE_1.2*/
max77686_set_ldo_mode(p, 18, OPMODE_OFF); /* CAM_ISP_SEN_IO_1.8V*/
max77686_set_ldo_mode(p, 19, OPMODE_OFF); /* LDO19 VT_CAM_1.8V */
max77686_set_ldo_mode(p, 20, OPMODE_ON); /* LDO20 VDDQ_PRE_1.8V*/
max77686_set_ldo_mode(p, 21, OPMODE_OFF); /* LDO21 VTF_2.8V */
max77686_set_ldo_mode(p, 22, OPMODE_OFF); /* LDO22 VMEM_VDD_2.8V*/
max77686_set_ldo_mode(p, 23, OPMODE_OFF); /* LDO23 TSP_AVDD_3.3V*/
max77686_set_ldo_mode(p, 24, OPMODE_OFF); /* LDO24 TSP_VDD_1.8V */
max77686_set_ldo_mode(p, 25, OPMODE_OFF); /* LDO25 VCC_3.3V_LCD */
max77686_set_ldo_mode(p, 26, OPMODE_OFF); /*LDO26 VCC_3.0V_MOTOR*/
return 0;
}
/*
* LCD
*/
#ifdef CONFIG_LCD
int mipi_power(void)
{
struct pmic *p = pmic_get("MAX77686_PMIC");
/* LDO8 VMIPI_1.0V_AP */
max77686_set_ldo_mode(p, 8, OPMODE_ON);
/* LDO10 VMIPI_1.8V_AP */
max77686_set_ldo_mode(p, 10, OPMODE_ON);
return 0;
}
void exynos_lcd_power_on(void)
{
struct pmic *p = pmic_get("MAX77686_PMIC");
/* LCD_2.2V_EN: GPC0[1] */
gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en");
gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);
gpio_direction_output(EXYNOS4X12_GPIO_C01, 1);
/* LDO25 VCC_3.1V_LCD */
pmic_probe(p);
max77686_set_ldo_voltage(p, 25, 3100000);
max77686_set_ldo_mode(p, 25, OPMODE_LPM);
}
void exynos_reset_lcd(void)
{
/* reset lcd */
gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset");
gpio_direction_output(EXYNOS4X12_GPIO_F21, 0);
udelay(10);
gpio_set_value(EXYNOS4X12_GPIO_F21, 1);
}
void exynos_lcd_misc_init(vidinfo_t *vid)
{
#ifdef CONFIG_TIZEN
get_tizen_logo_info(vid);
#endif
#ifdef CONFIG_S6E8AX0
s6e8ax0_init();
#endif
}
#endif /* LCD */