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