Currently, we request LED labels in OpenWrt to follow the scheme
modelname:color:function
However, specifying the modelname at the beginning is actually
entirely useless for the devices we support in OpenWrt. On the
contrary, having this part actually introduces inconvenience in
several aspects:
- We need to ensure/check consistency with the DTS compatible
- We have various exceptions where not the model name is used,
but the vendor name (like tp-link), which is hard to track
and justify even for core-developers
- Having model-based components will not allow to share
identical LED definitions in DTSI files
- The inconsistency in what's used for the model part complicates
several scripts, e.g. board.d/01_leds or LED migrations from
ar71xx where this was even more messy
Apart from our needs, upstream has deprecated the label property
entirely and introduced new properties to specify color and
function properties separately. However, the implementation does
not appear to be ready and probably won't become ready and/or
match our requirements in the foreseeable future.
However, the limitation of generic LEDs to color and function
properties follows the same idea pointed out above. Generic LEDs
will get names like "green:status" or "red:indicator" then, and
if a "devicename" is prepended, it will be the one of an internal
device, like "phy1:amber:status".
With this patch, we move into the same direction, and just drop
the boardname from the LED labels. This allows to consolidate
a few definitions in DTSI files (will be much more on ramips),
and to drop a few migrations compared to ar71xx that just changed
the boardname. But mainly, it will liberate us from a completely
useless subject to take care of for device support review and
maintenance.
To also drop the boardname from existing configurations, a simple
migration routine is added unconditionally.
Although this seems unfamiliar at first look, a quick check in kernel
for the arm/arm64 dts files revealed that while 1033 lines have
labels with three parts *:*:*, still 284 actually use a two-part
labelling *:*, and thus is also acceptable and not even rare there.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The "/dts-v1/;" identifier is supposed to be present once at the
top of a device tree file after the includes have been processed.
In ath79, we therefore requested to have in the DTS files so far,
and omit it in the DTSI files. However, essentially the syntax of
the parent ath79.dtsi file already determines the DTS version, so
putting it into the DTS files is just a useless repetition.
Consequently, this patch puts the dts-v1 statement into the parent
ath79.dtsi, which is (indirectly) included by all DTS files. All
other occurences are removed.
Since the dts-v1 statement needs to be before any other definitions,
this also moves the includes to make sure the ath79.dtsi or its
descendants are always included first.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
In ath79, for several SoCs the console bootargs are defined to the
very same value in every device's DTS. Consolidate these definitions
in the SoC dtsi files and drop further redundant definitions elsewhere.
The only device without any bootargs set has been OpenMesh OM5P-AC V2.
This will now inherit the setting from qca955x.dtsi
Note that while this tidies up master a lot, it might develop into a
frequent pitfall for backports.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Hardware
--------
SoC: Atheros AR7161
RAM: Samsung K4H511638D-UCCC
2x 64M DDR1
SPI: Micron M25P128 (16M)
WiFi: Atheros AR9160 bgn
Atheros AR9160 an
ETH: Broadcom BCM5481
LED: Power (Green/Red)
ETH (Green / Blue / Yellow)
(PHY-controlled)
WiFi 5 (Green / Blue)
WiFi 2 (Green / Blue)
BTN: Reset
Serial: Cisco-Style RJ45 - 115200 8N1
Installation
------------
1. Download the OpenWrt initramfs-image. Place it into a TFTP server
root directory and rename it to 1401A8C0.img. Configure the TFTP
server to listen at 192.168.1.66/24.
2. Connect the TFTP server to the access point.
3. Connect to the serial console of the access point. Attach power and
interrupt the boot procedure when prompted (bootdelay is 1 second).
4. Configure the U-Boot environment for booting OpenWrt from Ram and
flash:
$ setenv boot_openwrt 'setenv bootargs; bootm 0xbf080000'
$ setenv ramboot_openwrt 'setenv serverip 192.168.1.66;
tftpboot; bootm'
$ saveenv
5. Load OpenWrt into memory:
$ run ramboot_openwrt
Wait for the image to boot.
6. Transfer the OpenWrt sysupgrade image to the device. Write the image
to flash using sysupgrade:
$ sysupgrade -n /path/to/openwrt-sysuograde.bin
Signed-off-by: David Bauer <mail@david-bauer.net>
