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/arch/avr32/include/asm/arch-at32ap700x/gpio.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef __ASM_AVR32_ARCH_GPIO_H__
+#define __ASM_AVR32_ARCH_GPIO_H__
+
+#include <asm/arch/chip-features.h>
+#include <asm/arch/hardware.h>
+
+#define NR_GPIO_CONTROLLERS	5
+
+/*
+ * Pin numbers identifying specific GPIO pins on the chip.
+ */
+#define GPIO_PIOA_BASE	(0)
+#define GPIO_PIOB_BASE	(GPIO_PIOA_BASE + 32)
+#define GPIO_PIOC_BASE	(GPIO_PIOB_BASE + 32)
+#define GPIO_PIOD_BASE	(GPIO_PIOC_BASE + 32)
+#define GPIO_PIOE_BASE	(GPIO_PIOD_BASE + 32)
+#define GPIO_PIN_PA(x)	(GPIO_PIOA_BASE + (x))
+#define GPIO_PIN_PB(x)	(GPIO_PIOB_BASE + (x))
+#define GPIO_PIN_PC(x)	(GPIO_PIOC_BASE + (x))
+#define GPIO_PIN_PD(x)	(GPIO_PIOD_BASE + (x))
+#define GPIO_PIN_PE(x)	(GPIO_PIOE_BASE + (x))
+
+static inline void *pio_pin_to_port(unsigned int pin)
+{
+	switch (pin >> 5) {
+	case 0:
+		return (void *)ATMEL_BASE_PIOA;
+	case 1:
+		return (void *)ATMEL_BASE_PIOB;
+	case 2:
+		return (void *)ATMEL_BASE_PIOC;
+	case 3:
+		return (void *)ATMEL_BASE_PIOD;
+	case 4:
+		return (void *)ATMEL_BASE_PIOE;
+	default:
+		return NULL;
+	}
+}
+
+#include <asm/arch-common/portmux-pio.h>
+
+#endif /* __ASM_AVR32_ARCH_GPIO_H__ */