* Fixes to support wolfBoot native make and gcc-arm cross compiler. ZD 18159
* Adjust wolfBoot linker script to not use 0 base, instead use end of DDR - 1MB.
* Fixed QSPI bare-metal driver for multi-sector and read return code.
* Fixed issue with Xilinx XMSS IMAGE_HEADER_SIZE in documentation. It should be 5000 bytes.
* Performance optimizations for QSPI:
- Allow configuration of SPI clock.
- Improve GSPI FIFO TX/RX fill.
* Added support for FAST_MEMCPY that supports an aligned 32-bit.
* Added Flattened uImage Tree (FIT) image (FDT format).
* Added Aarch64 support for FDT fixups.
* Added Aarch64 startup to support EL2 with cache/MMU.
* Added documentation about exception levels
* Moved zynqmp registers to header.
* Fix printf uart_writenum "buf" len.
* Updated fdt-parser to support saving off larger data images.
* Added initialization of the clocks and UART driver.
- wolfBoot uses on chip high speed oscillator (HOCO) at (120MHz RX65N and 240Mhz for RX72N).
* Added RX RSPI and QSPI driver support with external SPI flash
* Improve documentation and fix spelling errors.
* Added .srec (s-record) format support
* Added RX TSIP support for ECDSA (requires https://github.com/wolfSSL/wolfssl/pull/7685).
* Allow custom implementation of `get_trailer_at`, `set_trailer_at` and `set_partition_magic` using `CUSTOM_PARTITION_TRAILER`
* 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.
* Added simulator support for Mac.
* Fix for simulator to properly assemble wolfboot.bin + signedtestapp + update + swap.
* Fixes for handling 64-bit assigned mmap virtual addresses. Added hal_flash_write and hal_flash_erase support for 64-bit address using uintptr_t. Enabled if platform is 64-bit and `FORCE_32BIT` is not defined
* Fix simulator conflict with src/libwolfboot.o object in test-app.
* Cleanup test-app linker flags.
* Added ELF32 and ELF64 loader support (config `ELF=1` or build option `WOLFBOOT_ELF`).
* Add ELF support to `update_ram.c` loader.
* Add support for loading entire flash image to RAM when `EXT_FLASH=1` and `NO_XIP=1` (or `WOLFBOOT_USE_RAMBOOT`).
* Added QUICC Engine support to load microcode and enable.
* Add multiple core support for NXP P1021.
* Fixes to resolve first stage boot ROM relocation.
- Implemented temporary workaround to resolve stack traps.
* Added PPC GOT relocation support.
* Fix for the PPC `isr_empty` handler address.
* Fix to allow stack to use DDR by having assembly setup DDR TLB. After relocating wolfBoot use stack on DDR.
* Cleanup wolfBoot output.
- Only remove extra .bin/.elf created unless `make distclean` is used.
- Don't output the key grep test (only check result).
- Adjust build order (first stage, wolfboot, test app, key, sign test app and factory).
- Fix to make sure linker script is rebuilt before objects.
Sample NXP P1021 Output:
```
Relocating BOOT ROM to DDR
Loading wolfBoot to DDR
Jumping to full wolfBoot
wolfBoot HAL Init
Flash Init: Ret 0, ID 0x76207620
QE: Length 63732, Count 1
QE: uploading 'Microcode for P1021 r1.0' version 0.0.1
QE: Traps 0
MP: Starting core 2 (spin table 0xFFFFF240)
Versions: Boot 1, Update 0
Trying Boot partition at 0x200000
Loading header 512 bytes to 0x1DFFFE00
Loading image 3170724 bytes to 0x1E000000
Image size 3170724
Firmware Valid
Loading elf at 0x1E000000
Found valid elf32 (big endian)
Booting at 0x6000
```
* 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
David Garske
Daniele Lacamera