MLK-14365-1 mx6sllevk: Add LCD splash screen support

Add LCD configurations and MCIMX28LCD display settings for mx6sllevk.
Enable the CONFIG_VIDEO for this feature.

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

1 files changed, 92 insertions, 0 deletions

diff --git a/board/freescale/mx6sllevk/mx6sllevk.c b/board/freescale/mx6sllevk/mx6sllevk.c
index 74a27a3..c0ad89b 100644
--- a/board/freescale/mx6sllevk/mx6sllevk.c
+++ b/board/freescale/mx6sllevk/mx6sllevk.c
@@ -17,9 +17,11 @@
 #include <common.h>
 #include <linux/sizes.h>
 #include <mmc.h>
+#include <mxsfb.h>
 #include <power/pmic.h>
 #include <power/pfuze100_pmic.h>
 #include "../common/pfuze.h"
+#include <asm/imx-common/video.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -27,6 +29,9 @@ 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();
@@ -91,6 +96,93 @@ int power_init_board(void)
 }
 #endif
 
+#ifdef CONFIG_VIDEO_MXS
+static iomux_v3_cfg_t const lcd_pads[] = {
+	MX6_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA00__LCD_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA01__LCD_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA02__LCD_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA03__LCD_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA04__LCD_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA05__LCD_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA06__LCD_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA07__LCD_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA08__LCD_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA09__LCD_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA18__LCD_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA19__LCD_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA20__LCD_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA21__LCD_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA22__LCD_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD_DATA23__LCD_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_KEY_ROW5__GPIO4_IO03 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_LCD_RESET__GPIO2_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
+
+	/* Use GPIO for Brightness adjustment, duty cycle = period */
+	MX6_PAD_PWM1__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+void do_enable_parallel_lcd(struct display_info_t const *dev)
+
+{
+	int ret;
+
+	ret = enable_lcdif_clock(dev->bus, 1);
+	if (ret) {
+		printf("Enable LCDIF clock failed, %d\n", ret);
+		return;
+	}
+
+	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
+
+	/* Reset the LCD */
+	gpio_request(IMX_GPIO_NR(2, 19), "lcd reset");
+	gpio_direction_output(IMX_GPIO_NR(2, 19) , 0);
+	udelay(500);
+	gpio_direction_output(IMX_GPIO_NR(2, 19) , 1);
+
+	gpio_request(IMX_GPIO_NR(4, 3), "lcd pwr en");
+	gpio_direction_output(IMX_GPIO_NR(4, 3) , 1);
+
+	/* Set Brightness to high */
+	gpio_request(IMX_GPIO_NR(3, 23), "backlight");
+	gpio_direction_output(IMX_GPIO_NR(3, 23) , 1);
+}
+
+struct display_info_t const displays[] = {{
+	.bus = MX6SLL_LCDIF_BASE_ADDR,
+	.addr = 0,
+	.pixfmt = 24,
+	.detect = NULL,
+	.enable	= do_enable_parallel_lcd,
+	.mode	= {
+		.name		= "MCIMX28LCD",
+		.xres           = 800,
+		.yres           = 480,
+		.pixclock       = 29850,
+		.left_margin    = 89,
+		.right_margin   = 164,
+		.upper_margin   = 23,
+		.lower_margin   = 10,
+		.hsync_len      = 10,
+		.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();