b4d32f0711
This small bootable stub, which just passes control to the
FEL code in the BROM, needs to be adjusted to also support
Allwinner A64 and Allwinner A80 because the BROM is located
at a different address there.
The SD card boot has a very low priority on Allwinner A64, but
it at least has a higher priority than the SPI NOR Flash:
https://linux-sunxi.org/BROM#A64
So this patch may help to simplify the FEL mode activation on
devices, which are booting their firmware from the SPI NOR Flash.
Changes in v2:
- Use SCTLR.V to detect the exception vectors location as
suggested by Jens Kuske.
- Add a padding of 32 NOP instructions in the beginning as
a workaround for some strange failures.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
sunxi-tools
Copyright (C) 2012 Alejandro Mery amery@geeks.cl
Tools to help hacking Allwinner A10 (aka sun4i) based devices and possibly it's successors, that's why the 'x' in the package name.
sunxi-fexc
.fex file (de)compiler
Usage: ./sunxi-fexc [-vq] [-I <infmt>] [-O <outfmt>] [<input> [<output>]]
infmt: fex, bin (default:fex)
outfmt: fex, bin (default:bin)
bin2fex
compatibility shortcut to call sunxi-fexc to decompile a script.bin
blob back into .fex format used by Allwinner's SDK to configure
the boards.
fex2bin
compatiblity shortcut to call sunxi-fexc to compile a .fex file
into the binary form used by the legacy 3.4 kernel ("linux‑sunxi").
sunxi-fel
script interface for talking to the FEL USB handler built in to the CPU. You activate FEL mode by pushing the uboot / recovery button at poweron. See http://linux-sunxi.org/FEL/USBBoot for a detailed usage guide.
fel-gpio
Simple wrapper (script) around fel-pio and sunxi-fel
to allow GPIO manipulations via FEL
fel-sdboot
ARM native sdcard bootloader forcing the device into FEL mode
fel-pio
ARM native helper (binary) for fel-gpio
sunxi-pio
Manipulate PIO register dumps
sunxi-nand-part
Tool for manipulating Allwinner NAND partition tables
jtag-loop.sunxi
ARM native boot helper to force the SD port into JTAG and then stop, to ease debugging of bootloaders.
sunxi-bootinfo
Dump information from Allwinner boot files (boot0 / boot1)
--type=sd include SD boot info
--type=nand include NAND boot info (not implemented)
phoenix_info
gives information about a phoenix image created by the phoenixcard utility and optionally extracts the embedded boot code & firmware file from their hidden partitions.
sunxi-meminfo
Tool for reading DRAM settings from registers. Compiled as a static binary for use on android and other OSes. To build this, get a toolchain and run:
make CROSS_COMPILE=arm-linux-gnueabihf- sunxi-meminfo
sunxi-script_extractor
A simple tool, which can be executed on a rooted Android device to dump the script.bin blob from RAM via reading /dev/mem. To build this, get a toolchain and run:
make CROSS_COMPILE=arm-linux-gnueabihf- sunxi-script_extractor
License
This software is licensed under the terms of GPLv2+ as defined by the Free Software Foundation, details can be read in the COPYING file.