1 /*
2  * Copyright (C) 2017 Armadeus Systems
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <asm/arch/clock.h>
8 #include <asm/arch/mx6-pins.h>
9 #include <asm/arch/opos6ul.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/gpio.h>
12 #include <asm/imx-common/iomux-v3.h>
13 #include <asm/io.h>
14 #include <common.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 #ifdef CONFIG_VIDEO_MXS
19 #define LCD_PAD_CTRL ( \
20 	PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
21 	PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm \
22 )
23 
24 static iomux_v3_cfg_t const lcd_pads[] = {
25 	MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
26 	MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
27 	MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
28 	MX6_PAD_LCD_VSYNC__LCDIF_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
29 	MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
30 	MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
31 	MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
32 	MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
33 	MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
34 	MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
35 	MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
36 	MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
37 	MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
38 	MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
39 	MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
40 	MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
41 	MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
42 	MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
43 	MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
44 	MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
45 	MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
46 	MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
47 
48 	MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)
49 };
50 
51 int setup_lcd(void)
52 {
53 	struct gpio_desc backlight;
54 	int ret;
55 
56 	enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
57 
58 	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
59 
60 	/* Set Brightness to high */
61 	ret = dm_gpio_lookup_name("GPIO4_10", &backlight);
62 	if (ret) {
63 		printf("Cannot get GPIO4_10\n");
64 		return ret;
65 	}
66 
67 	ret = dm_gpio_request(&backlight, "backlight");
68 	if (ret) {
69 		printf("Cannot request GPIO4_10\n");
70 		return ret;
71 	}
72 
73 	dm_gpio_set_dir_flags(&backlight, GPIOD_IS_OUT);
74 	dm_gpio_set_value(&backlight, 1);
75 
76 	return 0;
77 }
78 #endif
79 
80 #ifdef CONFIG_USB_EHCI_MX6
81 #define USB_OTHERREGS_OFFSET	0x800
82 #define UCTRL_PWR_POL		(1 << 9)
83 
84 int board_ehci_hcd_init(int port)
85 {
86 	u32 *usbnc_usb_ctrl;
87 
88 	if (port > 1)
89 		return -EINVAL;
90 
91 	usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
92 				 port * 4);
93 
94 	/* Set Power polarity */
95 	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
96 
97 	return 0;
98 }
99 #endif
100 
101 int opos6ul_board_late_init(void)
102 {
103 #ifdef CONFIG_VIDEO_MXS
104 	setup_lcd();
105 #endif
106 
107 	return 0;
108 }
109 
110 #ifdef CONFIG_SPL_BUILD
111 #define UART_PAD_CTRL (						\
112 	PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |	\
113 	PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST			\
114 )
115 
116 static iomux_v3_cfg_t const uart1_pads[] = {
117 	MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
118 	MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
119 };
120 
121 void opos6ul_setup_uart_debug(void)
122 {
123 	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
124 }
125 #endif /* CONFIG_SPL_BUILD */
126