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/drivers/input/keyboard.c

@@ -0,0 +1,87 @@
+/***********************************************************************
+ *
+ * (C) Copyright 2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Keyboard driver
+ *
+ ***********************************************************************/
+
+#include <common.h>
+#include <console.h>
+#include <input.h>
+
+#include <stdio_dev.h>
+#include <keyboard.h>
+#include <stdio_dev.h>
+
+static struct input_config config;
+
+static int kbd_read_keys(struct input_config *config)
+{
+#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8540) || \
+		defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555)
+	/* no ISR is used, so received chars must be polled */
+	ps2ser_check();
+#endif
+
+	return 1;
+}
+
+static int check_leds(int ret)
+{
+	int leds;
+
+	leds = input_leds_changed(&config);
+	if (leds >= 0)
+		pckbd_leds(leds);
+
+	return ret;
+}
+
+/* test if a character is in the queue */
+static int kbd_testc(struct stdio_dev *dev)
+{
+	return check_leds(input_tstc(&config));
+}
+
+/* gets the character from the queue */
+static int kbd_getc(struct stdio_dev *dev)
+{
+	return check_leds(input_getc(&config));
+}
+
+void handle_scancode(unsigned char scan_code)
+{
+	bool release = false;
+
+	/* Compare with i8042_kbd_check() in i8042.c if some logic is missing */
+	if (scan_code & 0x80) {
+		scan_code &= 0x7f;
+		release = true;
+	}
+
+	input_add_keycode(&config, scan_code, release);
+}
+
+/* TODO: convert to driver model */
+int kbd_init (void)
+{
+	struct stdio_dev kbddev;
+	struct input_config *input = &config;
+
+	if(kbd_init_hw()==-1)
+		return -1;
+	memset (&kbddev, 0, sizeof(kbddev));
+	strcpy(kbddev.name, "kbd");
+	kbddev.flags =  DEV_FLAGS_INPUT;
+	kbddev.getc = kbd_getc;
+	kbddev.tstc = kbd_testc;
+
+	input_init(input, 0);
+	input->read_keys = kbd_read_keys;
+	input_add_tables(input, true);
+
+	return input_stdio_register(&kbddev);
+}