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30b4b7ee09
The D-Link DIR-685 has the same problem as the D-Link DAP-2695: when flashing the factory image, the checksum includes the whole flashed image, even the rootfs_data part with the end of filesystem mark. Also the whole flashed image is stored in the flash, so on the first boot, the whole rootfs image is loaded into memory with the kernel. This is fixed using the fixwrgg command to mtd, but for this to work we need to make fixwrgg work with the Little-Endian ARM DIR-685. The code tries to be endian agnostic but this fails because the WRGG image loader doesn't. On ARM, the file size is stored in little endian format, and on big-endian systems it is stored in big endian format, so we can just drop all the friendly htonl() that will make the shdr->size big endian: this will actually break the little endian systems, and on the big endian systems the native endianness will still be correct. The magic number is always stored in little endian format however, so make sure this is always read in LE32 format. I chose to create a straight-forward le32_to_cpu() static inline that IMO is simple and easy to read. Cc: Stijn Tintel <stijn@linux-ipv6.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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|__| W I R E L E S S F R E E D O M
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This is the buildsystem for the OpenWrt Linux distribution.
To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.
You need gcc, binutils, bzip2, flex, python, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.
1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/
3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.
4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.
Sunshine!
Your OpenWrt Community
http://www.openwrt.org