avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/api/api_display.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <api_public.h>
+#include <lcd.h>
+#include <video_font.h> /* Get font width and height */
+
+/* lcd.h needs BMP_LOGO_HEIGHT to calculate CONSOLE_ROWS */
+#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
+#include <bmp_logo.h>
+#endif
+
+/* TODO(clchiou): add support of video device */
+
+int display_get_info(int type, struct display_info *di)
+{
+	if (!di)
+		return API_EINVAL;
+
+	switch (type) {
+	default:
+		debug("%s: unsupport display device type: %d\n",
+				__FILE__, type);
+		return API_ENODEV;
+#ifdef CONFIG_LCD
+	case DISPLAY_TYPE_LCD:
+		di->pixel_width  = panel_info.vl_col;
+		di->pixel_height = panel_info.vl_row;
+		di->screen_rows = lcd_get_screen_rows();
+		di->screen_cols = lcd_get_screen_columns();
+		break;
+#endif
+	}
+
+	di->type = type;
+	return 0;
+}
+
+int display_draw_bitmap(ulong bitmap, int x, int y)
+{
+	if (!bitmap)
+		return API_EINVAL;
+#ifdef CONFIG_LCD
+	return lcd_display_bitmap(bitmap, x, y);
+#else
+	return API_ENODEV;
+#endif
+}
+
+void display_clear(void)
+{
+#ifdef CONFIG_LCD
+	lcd_clear();
+#endif
+}