tegra: enable LCD on PAZ00

This adds LCD panel descriptions to the device tree of PAZ00 and
enables LCD support in the configuration.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

board/compal/dts/tegra20-paz00.dts

@@ -54,4 +54,36 @@
 	usb@c5004000 {
 		status = "disabled";
 	};
+
+	host1x {
+		status = "okay";
+		dc@54200000 {
+			status = "okay";
+			rgb {
+				status = "okay";
+				nvidia,panel = <&lcd_panel>;
+			};
+		};
+	};
+
+	lcd_panel: panel {
+		/* PAZ00 has 1024x600 */
+		clock = <54030000>;
+		xres = <1024>;
+		yres = <600>;
+		right-margin = <160>;
+		left-margin = <24>;
+		hsync-len = <136>;
+		upper-margin = <3>;
+		lower-margin = <61>;
+		vsync-len = <6>;
+		hsync-active-high;
+		nvidia,bits-per-pixel = <16>;
+		nvidia,pwm = <&pwm 0 0>;
+		nvidia,backlight-enable-gpios = <&gpio 164 0>;	/* PU4 */
+		nvidia,lvds-shutdown-gpios = <&gpio 102 0>;	/* PM6 */
+		nvidia,backlight-vdd-gpios = <&gpio 176 0>;	/* PW0 */
+		nvidia,panel-vdd-gpios = <&gpio 4 0>;		/* PA4 */
+		nvidia,panel-timings = <400 4 203 17 15>;
+	};
 };

board/compal/paz00/paz00.c

@@ -71,3 +71,14 @@ int board_mmc_init(bd_t *bd)
 	return 0;
 }
 #endif
+
+#ifdef CONFIG_LCD
+/* this is a weak define that we are overriding */
+void pin_mux_display(void)
+{
+	debug("init display pinmux\n");
+
+	/* EN_VDD_PANEL GPIO A4 */
+	pinmux_tristate_disable(PINGRP_DAP2);
+}
+#endif

include/configs/paz00.h

@@ -36,6 +36,7 @@
 #define CONFIG_MACH_TYPE		MACH_TYPE_PAZ00
 
 #define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
 
 /* SD/MMC */
 #define CONFIG_MMC
@@ -71,6 +72,20 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
 
+#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
+#define CONFIG_CONSOLE_SCROLL_LINES	10
+
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */