MLK-12437-4 mx6sxsabreauto: Update display to support panel selection

Support two display panels, one for LVDS, another for parallel LCD. Align
the feature to v2015.04 uboot.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit d5f7833adf6236357cf3c139e14e46d718e20524)

1 files changed, 117 insertions, 0 deletions

diff --git a/board/freescale/mx6sxsabreauto/mx6sxsabreauto.c b/board/freescale/mx6sxsabreauto/mx6sxsabreauto.c
index 4169401..cb8b952 100644
--- a/board/freescale/mx6sxsabreauto/mx6sxsabreauto.c
+++ b/board/freescale/mx6sxsabreauto/mx6sxsabreauto.c
@@ -27,6 +27,7 @@
 #include <usb.h>
 #include <usb/ehci-ci.h>
 #include <pca953x.h>
+#include <asm/imx-common/video.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -49,6 +50,9 @@ DECLARE_GLOBAL_DATA_PTR;
 			PAD_CTL_SRE_FAST)
 #define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)
 
+#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();
@@ -232,6 +236,119 @@ int mmc_map_to_kernel_blk(int devno)
 	return devno + 2;
 }
 
+#ifdef CONFIG_VIDEO_MXS
+static iomux_v3_cfg_t const lvds_ctrl_pads[] = {
+	/* Use GPIO for Brightness adjustment, duty cycle = period */
+	MX6_PAD_SD1_DATA1__GPIO6_IO_3 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const lcd_pads[] = {
+	MX6_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
+	MX6_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+void do_enable_lvds(struct display_info_t const *dev)
+{
+	struct gpio_desc desc;
+	int ret;
+
+	enable_lcdif_clock(dev->bus, 1);
+	enable_lvds_bridge(dev->bus);
+
+	imx_iomux_v3_setup_multiple_pads(lvds_ctrl_pads,
+							ARRAY_SIZE(lvds_ctrl_pads));
+
+	/* LVDS Enable pin */
+	ret = dm_gpio_lookup_name("gpio@30_7", &desc);
+	if (ret)
+		return;
+
+	ret = dm_gpio_request(&desc, "lvds_en");
+	if (ret)
+		return;
+
+	dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
+	dm_gpio_set_value(&desc, 1);
+
+	/* Set Brightness to high */
+	gpio_request(IMX_GPIO_NR(6, 3), "lcd backlight");
+	gpio_direction_output(IMX_GPIO_NR(6, 3) , 1);
+}
+
+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));
+
+	/* Power up the LCD */
+	gpio_request(IMX_GPIO_NR(3, 27), "lcd reset");
+	gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);
+}
+
+struct display_info_t const displays[] = {{
+	.bus = LCDIF2_BASE_ADDR,
+	.addr = 0,
+	.pixfmt = 18,
+	.detect = NULL,
+	.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
+} }, {
+	.bus = MX6SX_LCDIF1_BASE_ADDR,
+	.addr = 0,
+	.pixfmt = 18,
+	.detect = NULL,
+	.enable	= do_enable_parallel_lcd,
+	.mode	= {
+		.name			= "Boundary-LCD",
+		.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
+
 #ifdef CONFIG_FSL_QSPI
 
 #define QSPI_PAD_CTRL1	\