board/freescale/mx53loco/mx53loco_video.c

   1 /*
   2  * Copyright (C) 2012 Freescale Semiconductor, Inc.
   3  * Fabio Estevam <fabio.estevam@freescale.com>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <linux/list.h>
  26 #include <asm/gpio.h>
  27 #include <asm/arch/iomux-mx53.h>
  28 #include <linux/fb.h>
  29 #include <ipu_pixfmt.h>
  30
  31 #define MX53LOCO_LCD_POWER              IMX_GPIO_NR(3, 24)
  32
  33 static struct fb_videomode const claa_wvga = {
  34         .name           = "CLAA07LC0ACW",
  35         .refresh        = 57,
  36         .xres           = 800,
  37         .yres           = 480,
  38         .pixclock       = 37037,
  39         .left_margin    = 40,
  40         .right_margin   = 60,
  41         .upper_margin   = 10,
  42         .lower_margin   = 10,
  43         .hsync_len      = 20,
  44         .vsync_len      = 10,
  45         .sync           = 0,
  46         .vmode          = FB_VMODE_NONINTERLACED
  47 };
  48
  49 static struct fb_videomode const seiko_wvga = {
  50         .name           = "Seiko-43WVF1G",
  51         .refresh        = 60,
  52         .xres           = 800,
  53         .yres           = 480,
  54         .pixclock       = 29851, /* picosecond (33.5 MHz) */
  55         .left_margin    = 89,
  56         .right_margin   = 164,
  57         .upper_margin   = 23,
  58         .lower_margin   = 10,
  59         .hsync_len      = 10,
  60         .vsync_len      = 10,
  61         .sync           = 0,
  62 };
  63
  64 void setup_iomux_lcd(void)
  65 {
  66         static const iomux_v3_cfg_t lcd_pads[] = {
  67                 MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
  68                 MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
  69                 MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
  70                 MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
  71                 MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
  72                 MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
  73                 MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
  74                 MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
  75                 MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
  76                 MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
  77                 MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
  78                 MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
  79                 MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
  80                 MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
  81                 MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
  82                 MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
  83                 MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
  84                 MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
  85                 MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
  86                 MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
  87                 MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
  88                 MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
  89                 MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
  90                 MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
  91                 MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
  92                 MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
  93                 MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
  94                 MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
  95         };
  96
  97         imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
  98
  99         /* Turn on GPIO backlight */
 100         imx_iomux_v3_setup_pad(MX53_PAD_EIM_D24__GPIO3_24);
 101         gpio_direction_output(MX53LOCO_LCD_POWER, 1);
 102
 103         /* Turn on display contrast */
 104         imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
 105         gpio_direction_output(IMX_GPIO_NR(1, 1), 1);
 106 }
 107
 108 int board_video_skip(void)
 109 {
 110         int ret;
 111         char const *e = getenv("panel");
 112
 113         if (e) {
 114                 if (strcmp(e, "seiko") == 0) {
 115                         ret = ipuv3_fb_init(&seiko_wvga, 0, IPU_PIX_FMT_RGB24);
 116                         if (ret)
 117                                 printf("Seiko cannot be configured: %d\n", ret);
 118                         return ret;
 119                 }
 120         }
 121
 122         /*
 123          * 'panel' env variable not found or has different value than 'seiko'
 124          *  Defaulting to claa lcd.
 125          */
 126         ret = ipuv3_fb_init(&claa_wvga, 0, IPU_PIX_FMT_RGB565);
 127         if (ret)
 128                 printf("CLAA cannot be configured: %d\n", ret);
 129         return ret;
 130 }