[U-Boot] [PATCH] mx6sabresd: Add Seiko WVGA panel support

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Add support for the 4.3'' Seiko WVGA parallel display.

In order to direct the splash screen to the Seiko display:

=> setenv panel SEIKO-WVGA
=> save
=> reset

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 board/freescale/mx6sabresd/mx6sabresd.c | 61 +++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index 81dcd6e..3d81fff 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -51,6 +51,8 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
 
+#define DISP0_PWR_EN	IMX_GPIO_NR(1, 21)
+
 int dram_init(void)
 {
 	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -141,6 +143,45 @@ iomux_v3_cfg_t const ecspi1_pads[] = {
 	MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
 };
 
+static iomux_v3_cfg_t const rgb_pads[] = {
+	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void enable_rgb(struct display_info_t const *dev)
+{
+	imx_iomux_v3_setup_multiple_pads(rgb_pads, ARRAY_SIZE(rgb_pads));
+	gpio_direction_output(DISP0_PWR_EN, 1);
+}
+
 static struct i2c_pads_info i2c_pad_info1 = {
 	.scl = {
 		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | I2C_PAD,
@@ -357,6 +398,26 @@ struct display_info_t const displays[] = {{
 		.vsync_len      = 10,
 		.sync           = FB_SYNC_EXT,
 		.vmode          = FB_VMODE_NONINTERLACED
+} }, {
+	.bus	= 0,
+	.addr	= 0,
+	.pixfmt	= IPU_PIX_FMT_RGB24,
+	.detect	= NULL,
+	.enable	= enable_rgb,
+	.mode	= {
+		.name           = "SEIKO-WVGA",
+		.refresh        = 60,
+		.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);
 
-- 
1.9.1