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/configs/tegra210-common.h

@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2013-2015
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef _TEGRA210_COMMON_H_
+#define _TEGRA210_COMMON_H_
+
+#include "tegra-common.h"
+
+/* Cortex-A57 uses a cache line size of 64 bytes */
+#define CONFIG_SYS_CACHELINE_SIZE	64
+
+/*
+ * NS16550 Configuration
+ */
+#define V_NS16550_CLK		408000000	/* 408MHz (pllp_out0) */
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_STACKBASE	0x82800000	/* 40MB */
+
+/*-----------------------------------------------------------------------
+ * Physical Memory Map
+ */
+#define CONFIG_SYS_TEXT_BASE	0x80110000
+
+/* Generic Interrupt Controller */
+#define CONFIG_GICV2
+
+/*
+ * Memory layout for where various images get loaded by boot scripts:
+ *
+ * scriptaddr can be pretty much anywhere that doesn't conflict with something
+ *   else. Put it above BOOTMAPSZ to eliminate conflicts.
+ *
+ * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
+ *   something else. Put it above BOOTMAPSZ to eliminate conflicts.
+ *
+ * kernel_addr_r must be within the first 128M of RAM in order for the
+ *   kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
+ *   decompress itself to 0x8000 after the start of RAM, kernel_addr_r
+ *   should not overlap that area, or the kernel will have to copy itself
+ *   somewhere else before decompression. Similarly, the address of any other
+ *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
+ *   this up to 16M allows for a sizable kernel to be decompressed below the
+ *   compressed load address.
+ *
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
+ *   the compressed kernel to be up to 16M too.
+ *
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
+ */
+#define CONFIG_LOADADDR 0x80080000
+#define MEM_LAYOUT_ENV_SETTINGS \
+	"scriptaddr=0x90000000\0" \
+	"pxefile_addr_r=0x90100000\0" \
+	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
+	"fdt_addr_r=0x82000000\0" \
+	"ramdisk_addr_r=0x82100000\0"
+
+/* Defines for SPL */
+#define CONFIG_SPL_TEXT_BASE		0x80108000
+#define CONFIG_SYS_SPL_MALLOC_START	0x80090000
+#define CONFIG_SPL_STACK		0x800ffffc
+
+/* For USB EHCI controller */
+#define CONFIG_EHCI_IS_TDI
+#define CONFIG_USB_EHCI_TXFIFO_THRESH	0x10
+#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 1
+
+/* GPU needs setup */
+#define CONFIG_TEGRA_GPU
+
+#endif /* _TEGRA210_COMMON_H_ */