* Added DDR4 w/ECC.
* Added L2 and L2 CPC SRAM support
* Added platform SRAM 160KB support
* Added support for core timers (timebase) and platform clock.
* Added IFC driver with erase/write
* Added stage 1 loader to relocate wolfBoot to DDR
* Added CPLD, QUICC, FMAN and MP drivers
* Added eSPI driver for TPM.
* Added hal_early_init instead of calling ddr_init directly.
* Fixes for device tree (DTB) loading with update_ram and PPC boot.
* Fixes for relocating CCSRBAR to upper.
* Fixes for interrupt offsets.
* Fix and refactor the L2SRAM support and use it for stage 1 loader stack.
* Fix NXP eSPI driver to support all sizes and properly handle keeping CS active.
```
wolfBoot Init
Flash ID (ret 0): 0x1870EF, status 0
Erase Sector: Ret 0
Flash Write: Ret 0, Address 0x200000, Page 0, Len 256
Write Page: Ret 0
Flash Read: Ret 0, Address 0x200000, Len 256, Cmd 0xB
Read Page: Ret 0
Checking...
Flash Test Passed
```
* Added Aarch64 boot/startup support
* Added configuration templates for Raspberry Pi 3 and Xilinx ZynqMP UltraScale+
* Added Xilinx Zynq QSPI bare-metal Driver
* Added `NO_XIP` option for full `ext_flash_*` API on all partitions
* Added Xilinx SDK Project Template
* Added support for DTS image partitions
* Added wolfBoot signing tool in Native C (`tools/keytools/sign.c`).
* Added libwolfboot functions `int wolfBoot_fallback_is_possible(void);` and `int wolfBoot_dualboot_candidate(void);`
* Performance improvement to only hash application firmware image once
* HiFive1 HAL Support for PLL Clock, UART, RTC and Flash QSPI Erase/Write.
* HiFive1 update demo application for accepting firmware updates over UART.
* Added test-update-server application for pushing firmware image over UART.
* Fixes for building with `make SIGN=ECC256`.
* Improvements to wolfCrypt `user_settings.h`.
* General library cleanup (license headers and formatting)
* Updated the wolfSSL submodule to latest.
* Documentation updates including new `Targets.md` section for hardare instructions.
Daniele Lacamera
David Garske
Glenn Ergeerts
Chris Conlon