ENGR00315894-72 iMX6SX:SABRESD/19x19ARM2 Add splash screen support in BSP

Enable the video drivers and MXS LCDIF driver to support the
splash screen on MX6SX SDB and 19x19 ARM2. Add BSP codes for video
parameters and LCDIF/LVDS initialization.

"panel" env is used for selecting the display panel.
Set "panel" env to "Hannstar-XGA" for LVDS display.
Set "panel" env to "MCIMX28LCD" for parallel LCD display.

Signed-off-by: Ye.Li <B37916@freescale.com>

1 files changed, 161 insertions, 0 deletions

diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
index 9825c82..6a4311b 100644
--- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c
+++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
@@ -28,6 +28,11 @@
 #include <asm/arch/imx-rdc.h>
 #endif
 
+#ifdef CONFIG_VIDEO_MXS
+#include <linux/fb.h>
+#include <mxsfb.h>
+#endif
+
 #ifdef CONFIG_FASTBOOT
 #include <fastboot.h>
 #ifdef CONFIG_ANDROID_RECOVERY
@@ -61,6 +66,9 @@ DECLARE_GLOBAL_DATA_PTR;
 	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
 	PAD_CTL_ODE)
 
+#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)
+
 #define BUTTON_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE | \
 	PAD_CTL_PUS_22K_UP | PAD_CTL_DSE_40ohm)
 
@@ -356,6 +364,159 @@ void board_late_mmc_init(void)
 
 #endif
 
+#ifdef CONFIG_VIDEO_MXS
+static iomux_v3_cfg_t const lvds_ctrl_pads[] = {
+	/* CABC enable */
+	MX6SX_PAD_QSPI1A_DATA2__GPIO4_IO_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+
+	/* Use GPIO for Brightness adjustment, duty cycle = period */
+	MX6SX_PAD_SD1_DATA1__GPIO6_IO_3 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const lcd_pads[] = {
+	MX6SX_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6SX_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
+
+	/* Use GPIO for Brightness adjustment, duty cycle = period */
+	MX6SX_PAD_SD1_DATA2__GPIO6_IO_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+
+struct lcd_panel_info_t {
+	unsigned int lcdif_base_addr;
+	int depth;
+	void	(*enable)(struct lcd_panel_info_t const *dev);
+	struct fb_videomode mode;
+};
+
+void do_enable_lvds(struct lcd_panel_info_t const *dev)
+{
+	enable_lcdif_clock(dev->lcdif_base_addr);
+	enable_lvds(dev->lcdif_base_addr);
+
+	imx_iomux_v3_setup_multiple_pads(lvds_ctrl_pads,
+							ARRAY_SIZE(lvds_ctrl_pads));
+
+	/* Enable CABC */
+	gpio_direction_output(IMX_GPIO_NR(4, 18) , 1);
+
+	/* Set Brightness to high */
+	gpio_direction_output(IMX_GPIO_NR(6, 3) , 1);
+}
+
+void do_enable_parallel_lcd(struct lcd_panel_info_t const *dev)
+{
+	enable_lcdif_clock(dev->lcdif_base_addr);
+
+	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
+
+	/* Power up the LCD */
+	gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);
+
+	/* Set Brightness to high */
+	gpio_direction_output(IMX_GPIO_NR(6, 4) , 1);
+}
+
+static struct lcd_panel_info_t const displays[] = {{
+	.lcdif_base_addr = LCDIF2_BASE_ADDR,
+	.depth = 18,
+	.enable	= do_enable_lvds,
+	.mode	= {
+		.name			= "Hannstar-XGA",
+		.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
+} }, {
+	.lcdif_base_addr = LCDIF1_BASE_ADDR,
+	.depth = 24,
+	.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
+} } };
+
+int board_video_skip(void)
+{
+	int i;
+	int ret;
+	char const *panel = getenv("panel");
+	if (!panel) {
+		panel = displays[0].mode.name;
+		printf("No panel detected: default to %s\n", panel);
+		i = 0;
+	} else {
+		for (i = 0; i < ARRAY_SIZE(displays); i++) {
+			if (!strcmp(panel, displays[i].mode.name))
+				break;
+		}
+	}
+	if (i < ARRAY_SIZE(displays)) {
+		ret = mxs_lcd_panel_setup(displays[i].mode, displays[i].depth,
+				    displays[i].lcdif_base_addr);
+		if (!ret) {
+			if (displays[i].enable)
+				displays[i].enable(displays+i);
+			printf("Display: %s (%ux%u)\n",
+			       displays[i].mode.name,
+			       displays[i].mode.xres,
+			       displays[i].mode.yres);
+		} else
+			printf("LCD %s cannot be configured: %d\n",
+			       displays[i].mode.name, ret);
+	} else {
+		printf("unsupported panel %s\n", panel);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_FEC_MXC
 int board_eth_init(bd_t *bis)
 {