17164d8d9a
Now that we have a better understanding of what's causing the issue that prevented entering FEL sometimes, we can adjust the workaround code to a proper solution, i.e. skip over the problematic location. Since the code amounts to less than a dozen ARM instructions, I've decided to rewrite it as assembly code - fel-sdboot.S replaces the former fel-sdboot.c. The commit also includes a new binary (bin/fel-sdboot.sunxi) with these changes. Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de> Reviewed-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.