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/include/ps2mult.h

@@ -0,0 +1,56 @@
+#ifndef __LINUX_PS2MULT_H
+#define __LINUX_PS2MULT_H
+
+#define kbd_request_region()		ps2mult_init()
+#define kbd_request_irq(handler)	ps2mult_request_irq(handler)
+
+#define kbd_read_input()		ps2mult_read_input()
+#define kbd_read_status()		ps2mult_read_status()
+#define kbd_write_output(val)		ps2mult_write_output(val)
+#define kbd_write_command(val)		ps2mult_write_command(val)
+
+#define aux_request_irq(hand, dev_id)	0
+#define aux_free_irq(dev_id)
+
+#define PS2MULT_KB_SELECTOR		0xA0
+#define PS2MULT_MS_SELECTOR		0xA1
+#define PS2MULT_ESCAPE			0x7D
+#define PS2MULT_BSYNC			0x7E
+#define PS2MULT_SESSION_START		0x55
+#define PS2MULT_SESSION_END		0x56
+
+#define	PS2BUF_SIZE			512	/* power of 2, please */
+
+#ifndef CONFIG_PS2MULT_DELAY
+#define CONFIG_PS2MULT_DELAY	(CONFIG_SYS_HZ/2)	/* Initial delay	*/
+#endif
+
+  /* PS/2 controller interface (include/asm/keyboard.h)
+   */
+extern int ps2mult_init (void);
+extern int ps2mult_request_irq(void (*handler)(void *));
+extern u_char ps2mult_read_input(void);
+extern u_char ps2mult_read_status(void);
+extern void ps2mult_write_output(u_char val);
+extern void ps2mult_write_command(u_char val);
+
+extern void ps2mult_early_init (void);
+extern void ps2mult_callback (int in_cnt);
+
+  /* Simple serial interface
+   */
+extern int ps2ser_init(void);
+extern void ps2ser_putc(int chr);
+extern int ps2ser_getc(void);
+extern int ps2ser_check(void);
+
+
+  /* Serial related stuff
+   */
+struct serial_state {
+	int	baud_base;
+	int	irq;
+	u8	*iomem_base;
+};
+
+#endif /* __LINUX_PS2MULT_H */