MLK-14365-2 mx6ullevk: Add LCD splash screen support

Add LCD configurations and TFT43AB display settings for mx6sllevk.
Enable the CONFIG_VIDEO for this feature.

Signed-off-by: Ye Li <ye.li@nxp.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/board/freescale/mx6ullevk/mx6ullevk.c b/board/freescale/mx6ullevk/mx6ullevk.c
index 489bf21..870869e 100644
--- a/board/freescale/mx6ullevk/mx6ullevk.c
+++ b/board/freescale/mx6ullevk/mx6ullevk.c
@@ -18,6 +18,8 @@
 #include <fsl_esdhc.h>
 #include <linux/sizes.h>
 #include <mmc.h>
+#include <mxsfb.h>
+#include <asm/imx-common/video.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -25,6 +27,9 @@ DECLARE_GLOBAL_DATA_PTR;
 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
 	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
 
+#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
+	PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
+
 int dram_init(void)
 {
 	gd->ram_size = imx_ddr_size();
@@ -52,6 +57,84 @@ int mmc_map_to_kernel_blk(int devno)
 	return devno;
 }
 
+#ifdef CONFIG_VIDEO_MXS
+static iomux_v3_cfg_t const lcd_pads[] = {
+	MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_VSYNC__LCDIF_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA18__LCDIF_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA19__LCDIF_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA20__LCDIF_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA21__LCDIF_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA22__LCDIF_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA23__LCDIF_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+
+	/* LCD_RST */
+	MX6_PAD_SNVS_TAMPER9__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
+
+	/* Use GPIO for Brightness adjustment, duty cycle = period. */
+	MX6_PAD_GPIO1_IO08__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+void do_enable_parallel_lcd(struct display_info_t const *dev)
+{
+	enable_lcdif_clock(dev->bus, 1);
+
+	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
+
+	/* Reset the LCD */
+	gpio_request(IMX_GPIO_NR(5, 9), "lcd reset");
+	gpio_direction_output(IMX_GPIO_NR(5, 9) , 0);
+	udelay(500);
+	gpio_direction_output(IMX_GPIO_NR(5, 9) , 1);
+
+	/* Set Brightness to high */
+	gpio_request(IMX_GPIO_NR(1, 8), "backlight");
+	gpio_direction_output(IMX_GPIO_NR(1, 8) , 1);
+}
+
+struct display_info_t const displays[] = {{
+	.bus = MX6UL_LCDIF1_BASE_ADDR,
+	.addr = 0,
+	.pixfmt = 24,
+	.detect = NULL,
+	.enable	= do_enable_parallel_lcd,
+	.mode	= {
+		.name			= "TFT43AB",
+		.xres           = 480,
+		.yres           = 272,
+		.pixclock       = 108695,
+		.left_margin    = 8,
+		.right_margin   = 4,
+		.upper_margin   = 2,
+		.lower_margin   = 4,
+		.hsync_len      = 41,
+		.vsync_len      = 10,
+		.sync           = 0,
+		.vmode          = FB_VMODE_NONINTERLACED
+} } };
+size_t display_count = ARRAY_SIZE(displays);
+#endif
+
 int board_early_init_f(void)
 {
 	setup_iomux_uart();