With 5.15 kernel version Linksys EAX500 family devices suffered from a
big regression where the Ethernet switch became silent and started to
malfunction.
It was discovered later that the cause was not really the kernel upgrade
itself but a hackish implementation of the hw implementation of these
special routers.
In the original Linksys source code, GPIO 63 was handled in a special way
and was reset on reboot.
Normally GPIO 63 is used for pcie2 reset but in every device we support,
pcie2 is actually never used as nothing is attached to it.
Linksys rerouted GPIO 63 to the switch reset pin and deviates from
common hw implementation.
Till now it was used an hack to handle this case... It was set pcie3 as
working (while actually nothing was connected), set it to output low
(for assert-deassert from the pcie init code) and be done with it.
The result was that the GPIO was reset for enough time in early boot and
everything worked correctly.
This hack implementation was born to fail from the very start and in
kernel 5.15 finally problem arised.
In 5.15 pcie code changed and now the GPIO reset pin is not asserted as
probe won't fail if nothing is connected to the line (the old behaviour)
This result in the switch hold the reset pin and the Ethernet switch
dead.
On top of that with 5.15 code got optimized and simply attaching the
GPIO reset to the mdio wasn't enough as the switch require at least 10ms
to be correctly reset.
So implement finally a correct solution where:
- pcie2 is correctly disabled (nothing attached, unused)
- drop the wrong output-low for pcie2 reset pin
- define GPIO 63 as switch reset
- Add the reset-gpios to the mdio0 node
- Set the reset-post-delay-us to 12ms to correctly give time the switch
to reset
Fixes: #10983
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Most of the time when booting kernel prints a warning from
mm/page_alloc.c when pstore/ramoops is being initialized and ramoops is
not functional.
Fix this by moving ramopps node into reserved-memory block as described
in kernel documentation.
Fixes: 2964e5024c ("ipq806x: kernel ramoops storage for C2600/AD7200")
Signed-off-by: Filip Matijević <filip.matijevic.pz@gmail.com>
When fstools is unable to parse our root=<...> arg correctly, it can
fall back to scanning all block devices for a 'rootfs_data' partition.
This fallback was deemed wrong (or at least, a breaking/incompatible
change) for some targets, so we're forced to opt back into it with
fstools_partname_fallback_scan=1.
Without this, OnHub devices will use a rootfs-appended loop device for
rootfs_data instead of the intended 3rd partition.
While I'm at it, just move all the boot args into the 'cros-vboot'
build rule, instead of using the custom bootargs-append. All cros-vboot
subtargets here are using the same rootwait (to support both eMMC and
USB boot) and root/partition args.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
[ drop unrelated comments in commit description ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
TP-Link and ASUS OnHub devices are very similar, sharing many of the
same characteristics and much of their Device Tree. They both run a
version of ChromeOS for their factory firmware, and so installation
instructions look very similar to Google Wifi [1].
Things I've tested, and are working:
* Ethernet
* WiFi (2.4 and 5 GHz)
* LEDs
* USB
* eMMC
* Serial console (if you wire it up yourself)
* 2x CPU
* Speaker
== Installation instructions summary ==
1. Flash *-factory.bin to a USB drive (e.g., with `dd`)
2. Insert USB drive, to boot OpenWrt from USB
3. Copy the same *-factory.bin over to device, and flash it to eMMC to
make OpenWrt permanent
== Developer mode, booting from USB (Step 2) ==
To enter Developer Mode and boot OpenWrt from a USB stick:
1. Unplug power
2. Gain access to the "developer switch" through the bottom of the
device
3. Hold down the "reset switch" (near the USB port / power plug)
4. Plug power back in
5. The LED on the device should turn white, then blink orange, then
red. Release the reset switch.
6. Insert USB drive with OpenWrt factory.bin
7. Press the hidden developer switch under the device to boot to USB;
you should see some activity lights (if you have any) on your USB
drive
8. Depending on your configuration, the router's LED(s) should come on.
You're now running OpenWrt off a USB stick.
These instructions are derived from:
https://www.exploitee.rs/index.php/Rooting_The_Google_OnHub#Enabling_%22Developer_Mode%22_on_the_OnHubhttps://www.exploitee.rs/index.php/Asus_OnHub#Enabling_%22Developer_Mode%22_on_the_OnHub
~~Finding the developer switch:~~ for TP-Link, the developer switch is
on the bottom of the device, underneath some of the rubber padding and a
screw. For ASUS, remove the entire base, via 4 screws under the rubber
feet. See the Exploitee instructions for more info and photos.
== Making OpenWrt permanent (on eMMC) (Step 3) ==
Once you're running OpenWrt via USB:
1. Connect Ethernet to the LAN port; router's LAN address should be at
192.168.1.1
2. Connect another system to the router's LAN, and copy the factory.bin
image over, via SCP and SSH:
scp -O openwrt-ipq806x-chromium-tplink_onhub-squashfs-factory.bin root@192.168.1.1:
ssh root@192.168.1.1 -C "dd if=/dev/zero bs=512 seek=7552991 of=/dev/mmcblk0 count=33 && \
dd if=/root/openwrt-ipq806x-chromium-tplink_onhub-squashfs-factory.bin of=/dev/mmcblk0"
3. Reboot and remove the USB drive.
== Developer mode beep ==
Note that every time you boot the OnHub in developer mode, the device
will play a loud "beep" after a few seconds. This is described in the
Chromium docs [2], and is intended to make it clear that the device is
not running Google software. It is nontrivial to completely disable this
beep, although it's possible to "acknowledge" developer mode (and skip
the beep) by using a USB keyboard to press CTRL+D every time you boot.
[1] https://openwrt.org/toh/google/wifi
[2] https://chromium.googlesource.com/chromiumos/docs/+/HEAD/developer_mode.md
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Compex WPQ864 contains a non standard partition table. Each partition
node should be named partition and should contain a valid reg.
Fix an extra "-" present after the reg for SBL2_1 partition.
Also add "0:" to each qcom default partition following smem naming.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
The refreshed patch actually use the format of <start size start size>
instead of <start end start end>. This cause boot fail since the rootfs
can't be mounted with these wrong values.
Fix it to the correct format in each affected dts.
Fixes: #11498
Fixes: 6134ba4a34 ("ipq806x: 5.15: add boot-partitions binding to fix block warning")
Tested-by: Matt Buczko <mbuczko@hotmail.com> # Askey RT4230W
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Define the kernel crash log storage ramoops/pstore feature
for C2600/AD7200 and add kmod-ramoops to default.
Tested with C2600 only.
Signed-off-by: Edward Matijevic <motolav@gmail.com>
In refreshing DTS to the upstream version an unwanted change slipped in
the commit. The ASRock G10 dts got converted to DSA without any support.
Revert this to swconfig driver to restore normal functionality.
Fixes: 88bf652525 ("ipq806x: 5.15: replace dtsi patches with upstream version")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
nand_pins definition is now shipped in ipq8064 dtsi. Rework the
nand_pins definition for wg2600hp3 5.15 files.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
The patch has changed implementation and now the binding has changed.
Replace the old binding with boot-partitions and reimplement the
definition with the new definition.
The new definition is:
<offset1 size1 offset2 size2 offset3 ...>
and now supports sparsed patch.
Also add missing binding in some dts and add the backup boot partition
to the boot-partitions list.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reorganize dtsi patches with upstream version and drop dtsi in 5.15
files.
Also add an additional upstream patch for hwspinlock support.
Refresh all the dts with needed changes.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
In preparation for a cleanup of 5.15 patches copy the files dir to 5.10
and 5.15 kernel version.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
