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a508ab1ac8
Read times drop when increasing frequency to 25 MHz and 50 MHz, but not in between or for further increase. So, use 50 MHz as the lowest frequency with the fastest speed. Test results (thanks to Roger): The device reports a mx25l6405d flash chip. I tried all the maximum values in the devices' datasheet (Table 10. AC CHARACTERISTICS). All of them worked with and without "m25p,fast-read": > 10 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 1m 33.00s user 0m 0.01s sys 1m 7.56s > 25 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 34.42s user 0m 0.02s sys 0m 23.58s > 25 MHz, fast read root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 34.45s user 0m 0.02s sys 0m 23.59s > 33 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 34.39s user 0m 0.00s sys 0m 23.60s > 33 MHz, fast read root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 34.46s user 0m 0.01s sys 0m 23.62s > 50 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.81s user 0m 0.01s sys 0m 18.25s > 50 MHz, fast read root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.84s user 0m 0.00s sys 0m 18.25s > 66 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.80s user 0m 0.01s sys 0m 18.23s > 66 MHz, fast read root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.80s user 0m 0.02s sys 0m 18.23s > 86 MHz root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.84s user 0m 0.01s sys 0m 18.24s > 86 MHz, fast read root@OpenWrt:~# time cat /dev/mtd* > /dev/null real 0m 26.80s user 0m 0.02s sys 0m 18.23s Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Tested-by: Roger Pueyo Centelles <roger.pueyo@guifi.net> |
4 years ago | |
|---|---|---|
| .github | 6 years ago | |
| config | 4 years ago | |
| include | 4 years ago | |
| package | 4 years ago | |
| scripts | 4 years ago | |
| target | 4 years ago | |
| toolchain | 4 years ago | |
| tools | 4 years ago | |
| .gitattributes | 12 years ago | |
| .gitignore | 5 years ago | |
| BSDmakefile | 18 years ago | |
| Config.in | 7 years ago | |
| LICENSE | 8 years ago | |
| Makefile | 5 years ago | |
| README | 5 years ago | |
| feeds.conf.default | 7 years ago | |
| rules.mk | 5 years ago | |
README
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
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, python3.5+, 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