tegra: Enable LCD on Medcom-Wide

The Medcom-Wide has a 15" LCD panel with a resolution of 1366x768
pixels. Add a corresponding panel description to the device tree and
enable LCD support in the configuration.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

board/avionic-design/dts/tegra20-medcom-wide.dts

@@ -24,6 +24,19 @@
 		};
 	};
 
+	host1x {
+		status = "okay";
+
+		dc@54200000 {
+			status = "okay";
+
+			rgb {
+				nvidia,panel = <&lcd_panel>;
+				status = "okay";
+			};
+		};
+	};
+
 	clock@60006000 {
 		clocks = <&clk_32k &osc>;
 	};
@@ -55,4 +68,23 @@
 	usb@c5004000 {
 		status = "disabled";
 	};
+
+	lcd_panel: panel {
+		clock = <61715000>;
+		xres = <1366>;
+		yres = <768>;
+		left-margin = <2>;
+		right-margin = <47>;
+		hsync-len = <136>;
+		lower-margin = <21>;
+		upper-margin = <11>;
+		vsync-len = <4>;
+
+		nvidia,bits-per-pixel = <16>;
+		nvidia,pwm = <&pwm 0 500000>;
+		nvidia,backlight-enable-gpios = <&gpio 13 0>; /* PB5 */
+		nvidia,backlight-vdd-gpios = <&gpio 176 0>; /* PW0 */
+		nvidia,lvds-shutdown-gpios = <&gpio 10 0>; /* PB2 */
+		nvidia,panel-timings = <0 0 0 0>;
+	};
 };

include/configs/medcom-wide.h

@@ -42,6 +42,7 @@
 #define CONFIG_SYS_NS16550_COM1		NV_PA_APB_UARTD_BASE
 
 #define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
 
 #define CONFIG_ENV_IS_NOWHERE
 
@@ -77,6 +78,19 @@
 	"ext2load mmc 0 0x17000000 /boot/uImage;"	\
 	"bootm"
 
+#undef TEGRA_DEVICE_SETTINGS
+#define TEGRA_DEVICE_SETTINGS	\
+	"stdin=serial\0"	\
+	"stdout=serial,lcd\0"	\
+	"stderr=serial,lcd\0"
+
+/* LCD support */
+#define CONFIG_LCD
+#define CONFIG_PWM_TEGRA
+#define CONFIG_VIDEO_TEGRA
+#define LCD_BPP LCD_COLOR16
+#define CONFIG_SYS_WHITE_ON_BLACK
+
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */