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/*
* Copyright (C) 2012 Freescale Semiconductor, Inc.
* Fabio Estevam <fabio.estevam@freescale.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/list.h>
#include <asm/gpio.h>
#include <asm/arch/iomux-mx51.h>
#include <linux/fb.h>
#include <ipu_pixfmt.h>
#define MX51EVK_LCD_3V3 IMX_GPIO_NR(4, 9)
#define MX51EVK_LCD_5V IMX_GPIO_NR(4, 10)
#define MX51EVK_LCD_BACKLIGHT IMX_GPIO_NR(3, 4)
static struct fb_videomode const claa_wvga = {
.name = "CLAA07LC0ACW",
.refresh = 57,
.xres = 800,
.yres = 480,
.pixclock = 37037,
.left_margin = 40,
.right_margin = 60,
.upper_margin = 10,
.lower_margin = 10,
.hsync_len = 20,
.vsync_len = 10,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
};
static struct fb_videomode const dvi = {
.name = "DVI panel",
.refresh = 60,
.xres = 1024,
.yres = 768,
.pixclock = 15385,
.left_margin = 220,
.right_margin = 40,
.upper_margin = 21,
.lower_margin = 7,
.hsync_len = 60,
.vsync_len = 10,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
};
void setup_iomux_lcd(void)
{
/* DI2_PIN15 */
imx_iomux_v3_setup_pad(MX51_PAD_DI_GP4__DI2_PIN15);
/* Pad settings for DI2_DISP_CLK */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_DI2_DISP_CLK__DI2_DISP_CLK,
PAD_CTL_PKE | PAD_CTL_DSE_MAX | PAD_CTL_SRE_SLOW));
/* Turn on 3.3V voltage for LCD */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_CSI2_D12__GPIO4_9,
NO_PAD_CTRL));
gpio_direction_output(MX51EVK_LCD_3V3, 1);
/* Turn on 5V voltage for LCD */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_CSI2_D13__GPIO4_10,
NO_PAD_CTRL));
gpio_direction_output(MX51EVK_LCD_5V, 1);
/* Turn on GPIO backlight */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_DI1_D1_CS__GPIO3_4,
NO_PAD_CTRL));
gpio_direction_output(MX51EVK_LCD_BACKLIGHT, 1);
}
int board_video_skip(void)
{
int ret;
char const *e = getenv("panel");
if (e) {
if (strcmp(e, "claa") == 0) {
ret = ipuv3_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565);
if (ret)
printf("claa cannot be configured: %d\n", ret);
return ret;
}
}
/*
* 'panel' env variable not found or has different value than 'claa'
* Defaulting to dvi output.
*/
ret = ipuv3_fb_init(&dvi, 0, IPU_PIX_FMT_RGB24);
if (ret)
printf("dvi cannot be configured: %d\n", ret);
return ret;
}
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