+++ /dev/null
-/*
- * Copyright (C) 2012 Samsung Electronics
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <fdtdec.h>
-#include <asm/io.h>
-#include <errno.h>
-#include <i2c.h>
-#include <netdev.h>
-#include <spi.h>
-#include <asm/gpio.h>
-#include <asm/arch/cpu.h>
-#include <asm/arch/dwmmc.h>
-#include <asm/arch/mmc.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/power.h>
-#include <asm/arch/sromc.h>
-#include <power/pmic.h>
-#include <power/max77686_pmic.h>
-#include <power/tps65090_pmic.h>
-#include <tmu.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_SOUND_MAX98095
-static void board_enable_audio_codec(void)
-{
- /* Enable MAX98095 Codec */
- gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
- gpio_direction_output(EXYNOS5_GPIO_X17, 1);
- gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
-}
-#endif
-
-int exynos_init(void)
-{
-#ifdef CONFIG_SOUND_MAX98095
- board_enable_audio_codec();
-#endif
- return 0;
-}
-
-#if defined(CONFIG_POWER)
-#ifdef CONFIG_POWER_MAX77686
-static int pmic_reg_update(struct pmic *p, int reg, uint regval)
-{
- u32 val;
- int ret = 0;
-
- ret = pmic_reg_read(p, reg, &val);
- if (ret) {
- debug("%s: PMIC %d register read failed\n", __func__, reg);
- return -1;
- }
- val |= regval;
- ret = pmic_reg_write(p, reg, val);
- if (ret) {
- debug("%s: PMIC %d register write failed\n", __func__, reg);
- return -1;
- }
- return 0;
-}
-
-static int max77686_init(void)
-{
- struct pmic *p;
-
- if (pmic_init(I2C_PMIC))
- return -1;
-
- p = pmic_get("MAX77686_PMIC");
- if (!p)
- return -ENODEV;
-
- if (pmic_probe(p))
- return -1;
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN))
- return -1;
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT,
- MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V))
- return -1;
-
- /* VDD_MIF */
- if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT,
- MAX77686_BUCK1OUT_1V)) {
- debug("%s: PMIC %d register write failed\n", __func__,
- MAX77686_REG_PMIC_BUCK1OUT);
- return -1;
- }
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL,
- MAX77686_BUCK1CTRL_EN))
- return -1;
-
- /* VDD_ARM */
- if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1,
- MAX77686_BUCK2DVS1_1_3V)) {
- debug("%s: PMIC %d register write failed\n", __func__,
- MAX77686_REG_PMIC_BUCK2DVS1);
- return -1;
- }
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1,
- MAX77686_BUCK2CTRL_ON))
- return -1;
-
- /* VDD_INT */
- if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1,
- MAX77686_BUCK3DVS1_1_0125V)) {
- debug("%s: PMIC %d register write failed\n", __func__,
- MAX77686_REG_PMIC_BUCK3DVS1);
- return -1;
- }
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL,
- MAX77686_BUCK3CTRL_ON))
- return -1;
-
- /* VDD_G3D */
- if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1,
- MAX77686_BUCK4DVS1_1_2V)) {
- debug("%s: PMIC %d register write failed\n", __func__,
- MAX77686_REG_PMIC_BUCK4DVS1);
- return -1;
- }
-
- if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1,
- MAX77686_BUCK3CTRL_ON))
- return -1;
-
- /* VDD_LDO2 */
- if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1,
- MAX77686_LD02CTRL1_1_5V | EN_LDO))
- return -1;
-
- /* VDD_LDO3 */
- if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1,
- MAX77686_LD03CTRL1_1_8V | EN_LDO))
- return -1;
-
- /* VDD_LDO5 */
- if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1,
- MAX77686_LD05CTRL1_1_8V | EN_LDO))
- return -1;
-
- /* VDD_LDO10 */
- if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1,
- MAX77686_LD10CTRL1_1_8V | EN_LDO))
- return -1;
-
- return 0;
-}
-#endif /* CONFIG_POWER_MAX77686 */
-
-int exynos_power_init(void)
-{
- int ret = 0;
-
-#ifdef CONFIG_POWER_MAX77686
- ret = max77686_init();
- if (ret)
- return ret;
-#endif
-#ifdef CONFIG_POWER_TPS65090
- /*
- * The TPS65090 may not be in the device tree. If so, it is not
- * an error.
- */
- ret = tps65090_init();
- if (ret == 0 || ret == -ENODEV)
- return 0;
-#endif
-
- return ret;
-}
-#endif /* CONFIG_POWER */
-
-#ifdef CONFIG_LCD
-static int board_dp_bridge_setup(void)
-{
- const int max_tries = 10;
- int num_tries, node;
-
- /*
- * TODO(sjg): Use device tree for GPIOs when exynos GPIO
- * numbering patch is in mainline.
- */
- debug("%s\n", __func__);
- node = fdtdec_next_compatible(gd->fdt_blob, 0, COMPAT_NXP_PTN3460);
- if (node < 0) {
- debug("%s: No node for DP bridge in device tree\n", __func__);
- return -ENODEV;
- }
-
- /* Setup the GPIOs */
-
- /* PD is ACTIVE_LOW, and initially de-asserted */
- gpio_request(EXYNOS5_GPIO_Y25, "dp_bridge_pd");
- gpio_set_pull(EXYNOS5_GPIO_Y25, S5P_GPIO_PULL_NONE);
- gpio_direction_output(EXYNOS5_GPIO_Y25, 1);
-
- /* Reset is ACTIVE_LOW */
- gpio_request(EXYNOS5_GPIO_X15, "dp_bridge_reset");
- gpio_set_pull(EXYNOS5_GPIO_X15, S5P_GPIO_PULL_NONE);
- gpio_direction_output(EXYNOS5_GPIO_X15, 0);
-
- udelay(10);
- gpio_set_value(EXYNOS5_GPIO_X15, 1);
-
- gpio_request(EXYNOS5_GPIO_X07, "dp_bridge_hpd");
- gpio_direction_input(EXYNOS5_GPIO_X07);
-
- /*
- * We need to wait for 90ms after bringing up the bridge since there
- * is a phantom "high" on the HPD chip during its bootup. The phantom
- * high comes within 7ms of de-asserting PD and persists for at least
- * 15ms. The real high comes roughly 50ms after PD is de-asserted. The
- * phantom high makes it hard for us to know when the NXP chip is up.
- */
- mdelay(90);
-
- for (num_tries = 0; num_tries < max_tries; num_tries++) {
- /* Check HPD. If it's high, we're all good. */
- if (gpio_get_value(EXYNOS5_GPIO_X07))
- return 0;
-
- debug("%s: eDP bridge failed to come up; try %d of %d\n",
- __func__, num_tries, max_tries);
- }
-
- /* Immediately go into bridge reset if the hp line is not high */
- return -ENODEV;
-}
-
-void exynos_cfg_lcd_gpio(void)
-{
- /* For Backlight */
- gpio_request(EXYNOS5_GPIO_B20, "lcd_backlight");
- gpio_cfg_pin(EXYNOS5_GPIO_B20, S5P_GPIO_OUTPUT);
- gpio_set_value(EXYNOS5_GPIO_B20, 1);
-
- /* LCD power on */
- gpio_request(EXYNOS5_GPIO_X15, "lcd_power");
- gpio_cfg_pin(EXYNOS5_GPIO_X15, S5P_GPIO_OUTPUT);
- gpio_set_value(EXYNOS5_GPIO_X15, 1);
-
- /* Set Hotplug detect for DP */
- gpio_cfg_pin(EXYNOS5_GPIO_X07, S5P_GPIO_FUNC(0x3));
-}
-
-void exynos_set_dp_phy(unsigned int onoff)
-{
- set_dp_phy_ctrl(onoff);
-}
-
-void exynos_backlight_on(unsigned int on)
-{
- debug("%s(%u)\n", __func__, on);
-
- if (!on)
- return;
-
-#ifdef CONFIG_POWER_TPS65090
- int ret;
-
- ret = tps65090_fet_enable(1); /* Enable FET1, backlight */
- if (ret)
- return;
-
- /* T5 in the LCD timing spec (defined as > 10ms) */
- mdelay(10);
-
- /* board_dp_backlight_pwm */
- gpio_direction_output(EXYNOS5_GPIO_B20, 1);
-
- /* T6 in the LCD timing spec (defined as > 10ms) */
- mdelay(10);
-
- /* board_dp_backlight_en */
- gpio_request(EXYNOS5_GPIO_X30, "board_dp_backlight_en");
- gpio_direction_output(EXYNOS5_GPIO_X30, 1);
-#endif
-}
-
-void exynos_lcd_power_on(void)
-{
- int ret;
-
- debug("%s\n", __func__);
-
-#ifdef CONFIG_POWER_TPS65090
- /* board_dp_lcd_vdd */
- tps65090_fet_enable(6); /* Enable FET6, lcd panel */
-#endif
-
- ret = board_dp_bridge_setup();
- if (ret && ret != -ENODEV)
- printf("LCD bridge failed to enable: %d\n", ret);
-}
-
-#endif
projects / u-boot.git / commitdiff
