1 /*
2  * Copyright (C) 2012 Freescale Semiconductor, Inc.
3  * Fabio Estevam <fabio.estevam@freescale.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <linux/list.h>
10 #include <asm/gpio.h>
11 #include <asm/arch/iomux-mx53.h>
12 #include <linux/fb.h>
13 #include <ipu_pixfmt.h>
14 
15 #define MX53LOCO_LCD_POWER		IMX_GPIO_NR(3, 24)
16 
17 static struct fb_videomode const claa_wvga = {
18 	.name		= "CLAA07LC0ACW",
19 	.refresh	= 57,
20 	.xres		= 800,
21 	.yres		= 480,
22 	.pixclock	= 37037,
23 	.left_margin	= 40,
24 	.right_margin	= 60,
25 	.upper_margin	= 10,
26 	.lower_margin	= 10,
27 	.hsync_len	= 20,
28 	.vsync_len	= 10,
29 	.sync		= 0,
30 	.vmode		= FB_VMODE_NONINTERLACED
31 };
32 
33 static struct fb_videomode const seiko_wvga = {
34 	.name		= "Seiko-43WVF1G",
35 	.refresh	= 60,
36 	.xres		= 800,
37 	.yres		= 480,
38 	.pixclock	= 29851, /* picosecond (33.5 MHz) */
39 	.left_margin	= 89,
40 	.right_margin	= 164,
41 	.upper_margin	= 23,
42 	.lower_margin	= 10,
43 	.hsync_len	= 10,
44 	.vsync_len	= 10,
45 	.sync		= 0,
46 };
47 
48 void setup_iomux_lcd(void)
49 {
50 	static const iomux_v3_cfg_t lcd_pads[] = {
51 		MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
52 		MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
53 		MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
54 		MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
55 		MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
56 		MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
57 		MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
58 		MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
59 		MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
60 		MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
61 		MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
62 		MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
63 		MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
64 		MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
65 		MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
66 		MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
67 		MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
68 		MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
69 		MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
70 		MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
71 		MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
72 		MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
73 		MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
74 		MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
75 		MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
76 		MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
77 		MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
78 		MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
79 	};
80 
81 	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
82 
83 	/* Turn on GPIO backlight */
84 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_D24__GPIO3_24);
85 	gpio_direction_output(MX53LOCO_LCD_POWER, 1);
86 
87 	/* Turn on display contrast */
88 	imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
89 	gpio_direction_output(IMX_GPIO_NR(1, 1), 1);
90 }
91 
92 int board_video_skip(void)
93 {
94 	int ret;
95 	char const *e = getenv("panel");
96 
97 	if (e) {
98 		if (strcmp(e, "seiko") == 0) {
99 			ret = ipuv3_fb_init(&seiko_wvga, 0, IPU_PIX_FMT_RGB24);
100 			if (ret)
101 				printf("Seiko cannot be configured: %d\n", ret);
102 			return ret;
103 		}
104 	}
105 
106 	/*
107 	 * 'panel' env variable not found or has different value than 'seiko'
108 	 *  Defaulting to claa lcd.
109 	 */
110 	ret = ipuv3_fb_init(&claa_wvga, 0, IPU_PIX_FMT_RGB565);
111 	if (ret)
112 		printf("CLAA cannot be configured: %d\n", ret);
113 	return ret;
114 }
115