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git01.mediatek.com / filogic / uboot / 5b4ca3ed008896fbbc07add2c4a6c42e648a004d / . / board / samsung / smdk5420 / smdk5420.c
blob: a691222b8b143dd61e784ae8e3122dc95b8e3953 [file] [log] [blame]
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]1/*
2 * Copyright (C) 2013 Samsung Electronics
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include <fdtdec.h>
9#include <asm/io.h>
10#include <i2c.h>
11#include <lcd.h>
12#include <spi.h>
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]13#include <errno.h>
Simon Glass37f11622014-10-20 19:48:37 -0600[diff] [blame]14#include <asm/gpio.h>
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]15#include <asm/arch/board.h>
16#include <asm/arch/cpu.h>
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]17#include <asm/arch/pinmux.h>
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]18#include <asm/arch/system.h>
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]19#include <asm/arch/dp_info.h>
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]20#include <power/tps65090_pmic.h>
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]21
22DECLARE_GLOBAL_DATA_PTR;
23
24#ifdef CONFIG_USB_EHCI_EXYNOS
25static int board_usb_vbus_init(void)
26{
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]27 /* Enable VBUS power switch */
Akshay Saraswat1376cdd2014-05-13 10:30:14 +0530[diff] [blame]28 gpio_direction_output(EXYNOS5420_GPIO_X26, 1);
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]29
30 /* VBUS turn ON time */
31 mdelay(3);
32
33 return 0;
34}
35#endif
36
37int exynos_init(void)
38{
39#ifdef CONFIG_USB_EHCI_EXYNOS
40 board_usb_vbus_init();
41#endif
42 return 0;
43}
44
45#ifdef CONFIG_LCD
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]46static int has_edp_bridge(void)
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]47{
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]48 int node;
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]49
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]50 node = fdtdec_next_compatible(gd->fdt_blob, 0, COMPAT_PARADE_PS8625);
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]51
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]52 /* No node for bridge in device tree. */
53 if (node <= 0)
54 return 0;
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]55
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]56 /* Default is with bridge ic */
57 return 1;
58}
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]59
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]60void exynos_lcd_power_on(void)
61{
62 int ret;
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]63
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]64#ifdef CONFIG_POWER_TPS65090
65 ret = tps65090_init();
66 if (ret < 0) {
67 printf("%s: tps65090_init() failed\n", __func__);
68 return;
69 }
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]70
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]71 tps65090_fet_enable(6);
72#endif
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]73
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]74 mdelay(5);
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]75
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]76 /* TODO(ajaykumar.rs@samsung.com): Use device tree */
Simon Glass4f83d3d2014-10-20 19:48:39 -0600[diff] [blame]77 gpio_request(EXYNOS5420_GPIO_X35, "edp_slp#");
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]78 gpio_direction_output(EXYNOS5420_GPIO_X35, 1); /* EDP_SLP# */
79 mdelay(10);
Simon Glass4f83d3d2014-10-20 19:48:39 -0600[diff] [blame]80 gpio_request(EXYNOS5420_GPIO_Y77, "edp_rst#");
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]81 gpio_direction_output(EXYNOS5420_GPIO_Y77, 1); /* EDP_RST# */
Simon Glass4f83d3d2014-10-20 19:48:39 -0600[diff] [blame]82 gpio_request(EXYNOS5420_GPIO_X26, "edp_hpd");
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]83 gpio_direction_input(EXYNOS5420_GPIO_X26); /* EDP_HPD */
84 gpio_set_pull(EXYNOS5420_GPIO_X26, S5P_GPIO_PULL_NONE);
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]85
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]86 if (has_edp_bridge())
87 if (parade_init(gd->fdt_blob))
88 printf("%s: ps8625_init() failed\n", __func__);
89}
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]90
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]91void exynos_backlight_on(unsigned int onoff)
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]92{
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]93 /* For PWM */
Simon Glass4f83d3d2014-10-20 19:48:39 -0600[diff] [blame]94 gpio_request(EXYNOS5420_GPIO_B20, "backlight_on");
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]95 gpio_cfg_pin(EXYNOS5420_GPIO_B20, S5P_GPIO_FUNC(0x1));
96 gpio_set_value(EXYNOS5420_GPIO_B20, 1);
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]97
Ajay Kumar222e1442014-09-05 16:53:36 +0530[diff] [blame]98#ifdef CONFIG_POWER_TPS65090
99 tps65090_fet_enable(1);
100#endif
Rajeshwari Birje5b475ae2013-12-26 09:44:24 +0530[diff] [blame]101}
102#endif
103
104int board_get_revision(void)
105{
106 return 0;
107}