We actually need to enclose the whole section of partitions in a
`partitions { ... }` to assign it a `compatible = "fixed-partitions";
otherwise the partition referred to by `hwinfo` won't be registered
when bringing up MTD partitions, for example as per:

- <https://forum.openwrt.org/t/tp-link-c2600-missing-default-mac-mtd-partition-in-snapshot/103945/6

>

- commit e2b03c16 ("ipq806x: add missing enclosing partitions block for TP-Link C2600")'

Fixes: 8ec21d6b ("mpc85xx: convert mtd-mac-address to nvmem implementation")
Signed-off-by: Martin Kennedy <hurricos@gmail.com>
[minor beautification]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

This target does not activate CONFIG_PCI kernel configuration option, do
not activate the PCI feature. This will deactivate some PCI drivers
which are not building without PCI support in the kernel.

If PCI_SUPPORT or PCIE_SUPPORT are activated in the kernel configuration
the feature flag will be automatically set by the build system again.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

Deactivate all the symbols of the B53 DSA driver in the generic kernel
configuration. Multiple targets are now using this drivers and they
only need some of the options.
This fixes the bcm4908 build which didn't deactivate all of the options.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

From driver source:

	{ .compatible = "allwinner,sun4i-a10-rtc", .data =
	&data_year_param[0] },
	{ .compatible = "allwinner,sun7i-a20-rtc", .data =
	&data_year_param[1] },

The rtc-sunxi module only supports allwinner a10 and a20 SoCs,
other SoCs in the cortexa7 and cortexa53 subtarget using the
CONFIG_RTC_DRV_SUN6I driver which is compiled into the kernel
binary, so remove this package for these unsupported devices.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>

The Netgear GS110TPP v1 switch cannot reliably perform cold reboots
using the system's internal reset controller.

On this device, and the other supported Netgear switches, internal GPIO
line 13 is connected to the system's hard reset logic. Expose this GPIO
on all systems to ensure restarts work properly.

Cc: Raylynn Knight <rayknight@me.com>
Cc: Michael Mohr <akihana@gmail.com>
Cc: Stijn Segers <foss@volatilesystems.org>
Cc: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Bjørn Mork <bjorn@mork.no>

Add the gpio-restart driver to the realtek build. This way devices,
which cannot reliably perform resets using the SoC's internal reset
logic, can use a GPIO line to drive the SoC's hard reset input.

Signed-off-by: Sander Vanheule <sander@svanheule.net>

The internal GPIO controller on RTL838x is also an IRQ controller, which
requires the 'interrupt-controller' and '#interrupts-cells' properties
to be present in the device tree.

Reported-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Sander Vanheule <sander@svanheule.net>

Some devices are assigned globally unique MAC addresses for all
ports. These are stored by U-Boot in the second U-Boot enviroment
("sysinfo") as a range of start and end address.

Use the full range if provided.

Signed-off-by: Bjørn Mork <bjorn@mork.no>

The default management interface should be easy to find for users
doing "blind" installations without console access.  There are
already multiple examples in the forum of advanced early adopters
having problems locating the management interface after installing
OpenWrt.

Requiring tagged VLAN configration to access the initial management
interface creates unnecessary hassle at best. Errors on the other
end are close to impossible to debug without console access, even
for advanced users.  Less advanced users might have problems with
the concept of VLAN tagging.

Limiting management access to a single arbitrary port among up to
52 possible LAN ports makes this even more difficult, for no
reason at all. Users might have reasons to use a different port
for management.  And they might even have difficulties using the
OpenWrt selected one. The port might be the wrong type for their
management link (e.g copper instead of fibre).  Or they might
depend on PoE power from a device which they can't reconfigure.

User expectations will be based on
- OpenWrt defaults for other devices
- stock firmware default for the device in question
- common default behaviour of similar devices

All 3 cases point to a static IP address accessible on the native
VLAN of any LAN port.  A switch does not have any WAN port.  All
ports are LAN ports.

This changes the default network configuration in line with these
expectations.

Cc: John Crispin <john@phrozen.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>

The configs/omap3_overo_defconfig file was removed from upstream U-Boot
in commit ed3294d6d1f9 ("arm: Remove overo board"). Remove it in OpenWrt
too. If someone needs this please add it also to upstream U-Boot.

This fixes the compile of the omap target.

Fixes: ffb807ec ("omap: update u-boot to 2021.07")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

This fixes the build on omap.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

This patch adds support for the Teltonika RUTX10.
This device is an industrial DIN-rail router with 4 ethernet ports,
2.4G/5G dualband WiFi, Bluetooth, a USB 2.0 port and two GPIOs.

The RUTX series devices are very similiar so common parts of the DTS
are kept in a DTSI file. They are based on the QCA AP-DK01.1-C1 dev
board.

See https://teltonika-networks.com/product/rutx10 for more info.

Hardware:
  SoC:                 Qualcomm IPQ4018
  RAM:                 256MB DDR3
  SPI Flash 1:         XTX XT25F128B (16MB, NOR)
  SPI Flash 2:         XTX XT26G02AWS (256MB, NAND)
  Ethernet:            Built-in IPQ4018 (SoC, QCA8075), 4x 10/100/1000 ports
  WiFi 1:              Qualcomm QCA4019 IEEE 802.11b/g/n
  Wifi 2:              Qualcomm QCA4019 IEEE 802.11a/n/ac
  USB Hub:             Genesys Logic GL852GT
  Bluetooth:           Qualcomm CSR8510 (A10U)
  LED/GPIO controller: STM32F030 with custom firmware
  Buttons:             Reset button
  Leds:                Power (green, cannot be controlled)
                       WiFi 2.4G activity (green)
                       WiFi 5G activity (green)

MACs Details verified with the stock firmware:
   eth0:             Partition 0:CONFIG Offset: 0x0
   eth1:             = eth0 + 1
   radio0 (2.4 GHz): = eth0 + 2
   radio1 (5.0 GHz): = eth0 + 3
Label MAC address is from eth0.

The LED/GPIO controller needs a separate kernel driver to function.
The driver was extracted from the Teltonika GPL sources and can be
found at following feed: https://github.com/0xFelix/teltonika-rutx-openwrt

USB detection of the bluetooth interface is sometimes a bit flaky. When
not detected power cycle the device. When the bluetooth interface was
detected properly it can be used with bluez / bluetoothctl.

Flash instructions via stock web interface (sysupgrade based):
  1. Set PC to fixed ip address 192.168.1.100
  2. Push reset button and power on the device
  3. Open u-boot HTTP recovery at http://192.168.1.1
  4. Upload latest stock firmware and wait until the device is rebooted
  5. Open stock web interface at http://192.168.1.1
  6. Set some password so the web interface is happy
  7. Go to firmware upgrade settings
  8. Choose
     openwrt-ipq40xx-generic-teltonika_rutx10-squashfs-nand-factory.ubi
  9. Set 'Keep settings' to off
  10. Click update, when warned that it is not a signed image proceed

Return to stock firmware:
  1. Set PC to fixed ip address 192.168.1.100
  2. Push reset button and power on the device
  3. Open u-boot HTTP recovery at http://192.168.1.1


  4. Upload latest stock firmware and wait until the device is rebooted

Note: The DTS expects OpenWrt to be running from the second rootfs
partition. u-boot on these devices hot-patches the DTS so running from the
first rootfs partition should also be possible. If you want to be save follow
the instructions above. u-boot HTTP recovery restores the device so that when
flashing OpenWrt from stock firmware it is flashed to the second rootfs
partition and the DTS matches.

Signed-off-by: Felix Matouschek <felix@matouschek.org>

The MR42 and MR52 are two similar IPQ806x based devices from the Cisco
Meraki "Cryptid" series.

  MR42 main features:
  -  IPQ8068 1.4GHz
  -  512MB RAM
  -  128MB NAND
  -  2x QCA9992 (2.4 & 5GHz)
  -  1x QCA9889 (2.4 & 5GHz)
  -  1x AR8033 PHY
  -  PoE/AC power

  MR52 main features:
  -  IPQ8068 1.4GHz
  -  512MB RAM
  -  128MB NAND
  -  2x QCA9994 (2.4 & 5GHz)
  -  1x QCA9889 (2.4 & 5GHz)
  -  2x AR8033 PHYs
  -  PoE/AC power

(MR42 Only) Installation via diagnostic mode:

If you can successfully complete step 1 then you can continue to install
via this method without having to open the device. Otherwise please use
the standard UART method. Please note that when booting via TFTP, some
Ethernet devices, in particular those on laptops, will not connect in
time, resulting in TFTP boot not succeeding. In this instance it is
advised to connect via a switch.

  1. Hold down reset at power on and keep holding, after around 10 seconds
     if the orange LED changes behaviour to begin flashing, proceed to
     release reset, then press reset two times. Ensure that the LED has
     turned blue. Note that flashing will occur on some devices, but it
     will not be possible to change the LED colour using the reset button.
     In this case it will still be possible to continue with this install
     method.

  2. Set your IP to 192.168.1.250. Set up a TFTP server serving
     mr42_u-boot.mbn and
     openwrt-ipq806x-generic-meraki_mr42-initramfs-fit-uImage.itb, obtained
     from [1].

  3. Use telnet and connect to 192.168.1.1. Run the following commands to
     install u-boot. Note that all these commands are critical, an error
     will likely render the device unusable.

     Option 3.1:
       If you are sure you have set up the TFTP server correctly you can
       run this script on the device. This will download and flash the
       u-boot image immediately:

       `/etc/update_uboot.sh 192.168.1.250 mr42_u-boot.mbn`

       Once completed successfully, power off the device.

     Option 3.2:
       If you are unsure the TFTP server is correctly set up you can
       obtain the image and flash manually:

       3.2.1. `cd /tmp`
       3.2.2. `tftp-hpa 192.168.1.250 -m binary -c get mr42_u-boot.mbn`
       3.2.3. Confirm file has downloaded correctly by comparing the
              md5sum:

            `md5sum mr42_u-boot.mbn`

       3.2.4. The following are the required commands to write the image.

            `echo 1 > /sys/devices/platform/msm_nand/boot_layout
             mtd erase /dev/mtd1
             nandwrite -pam /dev/mtd1 mr42_u-boot.mbn
             echo 0 > /sys/devices/platform/msm_nand/boot_layout`

          Important: You must observe the output of the `nandwrite`
          command. Look for the following to verify writing is occurring:

            `Writing data to block 0 at offset 0x0
             Writing data to block 1 at offset 0x20000
             Writing data to block 2 at offset 0x40000`

          If you do not see this then do not power off the device. Check
          your previous commands and that mr42_u-boot.mbn was downloaded
          correctly. Once you are sure the image has been written you
          can proceed to power off the device.

  4. Hold the reset button and power on the device. This will immediately
     begin downloading the appropriate initramfs image and boot into it.

     Note: If the device does not download the initramfs, this is likely
     due to the interface not being brought up in time. Changing Ethernet
     source to a router or switch will likely resolve this. You can also
     try manually setting the link speed to 10Mb/s Half-Duplex.

  5. Once a solid white LED is displayed on the device, continue to the
     UART installation method, step 6.

Standard installation via UART - MR42 & MR52

  1. Disassemble the device and connect a UART header. The header pinout
     is as follows:

       1 - 3.3v
       2 - TXD
       3 - RXD
       4 - GND

     Important: You should only connect TXD, RXD and GND. Connecting
     3.3v may damage the device.

  2. Set your IP to 192.168.1.250. Set up a TFTP server serving
     openwrt-ipq806x-generic-meraki_(mr42|mr52)-initramfs-fit-uImage.itb.
     Separately obtain the respective sysupgrade image.

  3. Run the following commands, preferably from a Linux host. The
     mentioned files, including ubootwrite.py and u-boot images, can be
     obtained from [1].

       `python ubootwrite.py --write=(mr42|mr52)_u-boot.bin`

     The default for "--serial" option is /dev/ttyUSB0.

  4. Power on the device. The ubootwrite script will upload the image to
     the device and launch it. The second stage u-boot will in turn load
     the initramfs image by TFTP, provided the TFTP server is running
     correctly. This process will take about 13 minutes. Once a solid
     white LED is displayed, the image has successfully finished
     loading. Note: If the image does not load via TFTP, try again with
     the Ethernet link to 10Mb/s Half-Duplex.

  5. (MR42 only) Do not connect over the network. Instead connect over
     the UART using minicom or similar tool. To replace u-boot with
     the network enabled version, please run the following commands.
     Note that in the provided initramfs images, the u-boot.mbn file
     is located in /root:

     If you have not used the provided initramfs, you must ensure you
     are using an image with "boot_layout" ECC configuration enabled in
     the Kernel. This will be version 5.10 or higher. If you do not do
     this correctly the device will be bricked.

       `insmod mtd-rw i_want_a_brick=1
        mtd erase /dev/mtd8
        nandwrite -pam /dev/mtd8 /root/mr42_u-boot.mbn`

     After running nandwrite, ensure you observe the following output:

       `Writing data to block 0 at offset 0x0
        Writing data to block 1 at offset 0x20000
        Writing data to block 2 at offset 0x40000`

  6. (Optional) If you have no further use for the Meraki OS, you can
     remove all other UBI volumes on ubi0 (mtd11), including diagnostic1,
     part.old, storage and part.safe. You must not remove the ubi1 ART
     partition (mtd12).

       `for i in diagnostic1 part.old storage part.safe ; do
        ubirmvol /dev/ubi0 -N $i
        done`

  7. Proceed to flash the sysupgrade image via luci, or else download or
     scp the image to /tmp and use the sysupgrade command.

[1] The mentioned images and ubootwrite.py script can be found in this repo:
    https://github.com/clayface/openwrt-cryptid

[2] The modified u-boot sources for the MR42 and MR52 are available:
    https://github.com/clayface/U-boot-MR52-20200629



Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>

gsbi2_i2c is used by the Meraki MR42 so we need to expose a label here.

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>

Add backports of the following patches:
"net: stmmac: explicitly deassert GMAC_AHB_RESET" and
"ARM: dts: qcom: add ahb reset to ipq806x-gmac"
Required for Meraki MR42/MR52.

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>

Rather than having separate patches for each GSBI node added, this patch
consolidates the existing GSBI1 patch into
083-ipq8064-dtsi-additions.patch. In addition, GSBI6 and GSBI7 I2C nodes,
required for the MR42 and MR52 respectively, are added.

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>

This adds support for the MikroTik RouterBOARD RBD53iG-5HacD2HnD
(hAP ac³), a  indoor dual band, dual-radio 802.11ac
wireless AP with external omnidirectional antennae, USB port, five
10/100/1000 Mbps Ethernet ports and PoE passthrough.

See https://mikrotik.com/product/hap_ac3

 for more info.

Specifications:
 - SoC: Qualcomm Atheros IPQ4019
 - RAM: 256 MB
 - Storage: 16 MB NOR + 128 MB NAND
 - Wireless:
   · Built-in IPQ4019 (SoC) 802.11b/g/n 2x2:2, 3 dBi antennae
   · Built-in IPQ4019 (SoC) 802.11a/n/ac 2x2:2, 5.5 dBi antennae
 - Ethernet: Built-in IPQ4019 (SoC, QCA8075) , 5x 1000/100/10 port,
             passive PoE in, PoE passtrough on port 5
- 1x USB Type A port

Installation:
1. Boot the initramfs image via TFTP
2. Run "cat /proc/mtd" and look for "ubi" partition mtd device number, ex. "mtd1"
3. Use ubiformat to remove MikroTik specific UBI volumes
* Detach the UBI partition by running: "ubidetach -d 0"
* Format the partition by running: "ubiformat /dev/mtdN -y"
Replace mtdN with the correct mtd index from step 2.
3. Flash the sysupgrade image using "sysupgrade -n"

Signed-off-by: Robert Marko <robimarko@gmail.com>
Tested-by: Mark Birss <markbirss@gmail.com>
Tested-by: Michael Büchler <michael.buechler@posteo.net>
Tested-by: Alex Tomkins <tomkins@darkzone.net>

All patches automatically rebased.

Build system: x86_64
Build-tested: ramips/mt7621*

*I am hit with the binutils 2.37 bug so I had to revert 7f1edbd4
in order to downgrade to 2.35.1

Signed-off-by: John Audia <graysky@archlinux.us>

Removed upstreamed:
    ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch[1]

Manually rebased:
    layerscape/patches-5.4/804-crypto-0016-MLKU-114-1-crypto-caam-reduce-page-0-regs-access-to-.patch
    octeontx/patches-5.4/0004-PCI-add-quirk-for-Gateworks-PLX-PEX860x-switch-with-.patch

All other patches automatically rebased.

1. Private email exchange with patch author, Hauke Mehrtens

Signed-off-by: John Audia <graysky@archlinux.us>

Steven Maddox reported in the OpenWrt bugzilla, that his
RaidSonic IB-NAS4220-B was no longer booting with the new
OpenWrt 21.02 (uses linux 5.10's device-tree). However, it was
working with the previous OpenWrt 19.07 series (uses 4.14).

(This is still under investigation.)

Bugzilla: https://bugs.openwrt.org/index.php?do=details&task_id=4137


Reported-by: Steven Maddox <s.maddox@lantizia.me.uk>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

the Netgear EX6100v2 and EX6150v2 can utilize the nvmem
for the pre-calibration and mac-address for both WIFI
devices.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

For v2, both ath9k (2.4GHz Wifi) and ath10k (5 GHz) driver now
pull the (pre-)calibration data from the nvmem subsystem. v1
is slightly different as only the ath9k Wifi is supported.

This allows us to move the userspace caldata extraction
and mac-address patching for the 5GHZ ath10k supported
wifi into the device-tree definition of the device.

ath9k's nodes are also changed over to use nvmem-cells
over OpenWrt's custom mtd-cal-data property.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

Martin Kennedy reported:
|Presently, I get this kernel panic on mpc85xx (Aerohive HiveAP 370)
|on OpenWrt 'master' which occurs right as the second processor is
|initialized:
|
|[    0.478804] rcu: Hierarchical SRCU implementation.
|[    0.535569] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
|[    0.627233] smp: Bringing up secondary CPUs ...
|[    0.681659] kernel tried to execute user page (0) - exploit attempt? (uid: 0)
|[    0.766618] BUG: Unable to handle kernel instruction fetch (NULL pointer?)
|[    0.848899] Faulting instruction address: 0x00000000
|[    0.908273] Oops: Kernel access of bad area, sig: 11 [#1]
|[    0.972851] BE PAGE_SIZE=4K SMP NR_CPUS=2 P1020 RDB
|[    1.031179] Modules linked in:
|[    1.067640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.80 #0
|[    1.139507] NIP:  00000000 LR: c0021d2c CTR: 00000000
|[    1.199921] REGS: c1051cf0 TRAP: 0400   Not tainted  (5.10.80)
|[...]
|[    1.758220] NIP [00000000] 0x0
|[    1.794688] LR [c0021d2c] smp_85xx_kick_cpu+0xe8/0x568
|[    1.856126] Call Trace:
|[    1.885295] [c1051da8] [c0021cb8] smp_85xx_kick_cpu+0x74/0x568 (unreliable)
|[    1.968633] [c1051de8] [c0011460] __cpu_up+0xc0/0x228
|[    2.029038] [c1051e18] [c0031bbc] bringup_cpu+0x30/0x224
|[    2.092572] [c1051e48] [c0031f3c] cpu_up.constprop.0+0x180/0x33c
|[..]
|[    2.727952] ---[ end trace 9b796a4bafb6bc14 ]---
|[    3.800879] Kernel panic - not syncing: Fatal exception
|[    3.862353] Rebooting in 1 seconds..
|[    5.905097] System Halted, OK to turn off power
|
|I bisected this down to commit 3ae5da5a ("kernel: bump 5.10 to 5.10.80");
|that is, I don't get the panic right before this commit, but I do after.

He reported the issue upstream and Xiaoming Ni from huawei came up with
the patch (that is on it's way to upstream). While the AP370 is not in
Openwrt, this will likely affect other SMP P1020 devices OpenWrt ships
with: like the AP330, Enterasys WS-AP3710i, etc.

Reported-by: Martin Kennedy <hurricos@gmail.com>
Tested-by: Martin Kennedy <hurricos@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

these flags have been creeping in from the QSDK.
All needed clocks should be accounted for, and
if a device is broken due to this. It should be
looked into.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

Bjorn Anderson has suggestions which would help to upstream the patch.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

The board has a fixed size kernel partition but do not limit the kernel
size during image building.

Disable image building for both boards as well, since the kernel of the
last release as well as master are to big to fit into the 2 MByte kernel
partition.

Signed-off-by: Mathias Kresin <dev@kresin.me>

The current state of the kernel 5.4 support is in the openwrt-21.02
branch. No need to keep a not default used kernel in this branch.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> [VRX268/ bthub5]

Use kernel 5.10 by default.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> [VRX268/ bthub5]

With Kernel 5.10 the ar7 FRITZ!Box are not booting the initramfs nor the
sysupgrade image any more. Presumably due to the grown kernel.

Use the okli preloader to workaround the bootloader issue. No solution
so far for the initramfs.

Signed-off-by: Mathias Kresin <dev@kresin.me>

Removed due to being unused with 1f7a03a7, but now required for the
ar7 FRITZ!Box.

Could be used for the ARV7519RW22 as well, for which the image
generation was disabled due to a stock u-boot issue with kernel bigger
than 2 MByte.

The code is combination of the ath79 and ramips okli loader.

Signed-off-by: Mathias Kresin <dev@kresin.me>

Removed upstreamed:
    bcm53xx/patches-5.10/033-v5.16-0014-ARM-dts-NSP-Fix-mpcore-mmc-node-names.patch

Manually rebased:
    ipq806x/patches-5.10/086-ipq8064-fix-duplicate-node.patch

All other patches automatically rebased.

Build system: x86_64
Build-tested: bcm2711/RPi4B, ipq806x/R7800
Run-tested: bcm2711/RPi4B, ipq806x/R7800

Signed-off-by: John Audia <graysky@archlinux.us>

Manually rebased:
    octeontx/patches-5.10/0004-PCI-add-quirk-for-Gateworks-PLX-PEX860x-switch-with-.patch

All other patches automatically rebased.

Build system: x86_64
Build-tested: bcm2711/RPi4B, ipq806x/R7800
Run-tested: bcm2711/RPi4B, ipq806x/R7800

Signed-off-by: John Audia <graysky@archlinux.us>

By dropping _machine_restart, users can provide more reliable or
device-specific restart modes.

_machine_halt was already removed in commit f4b687d1 ("realtek: use
kernel defined halt"), but quietly reintroduced in commit 8faffa00
("realtek: add support for the RTL9300 timer"). Let's remove it again.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

Add and enable the Realtek Otto WDT peripheral found on these SoCs.

Default all devices to use standard (cold) reboot and "soc" resets.

Devices that require the PLL value fixup before restarting, should pick
the "cpu" or "software" reset mode. These devices also need to provide a
custom reboot mode, by adding the reboot argument to the kernel command
line:

    WDT reset mode  | kernel reboot mode
    ----------------+---------------------------------------
    soc             | reboot=cold (default if not specified)
    cpu             | reboot=warm
    software        | reboot=software

Preferrably, these devices should use an alternative restart method like
gpio-restart to provide reliable restarts.

Note that watchdog restarts are not yet exposed, since the
_machine_restart override is still present.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

Add patch submitted upstream to linux-watchdog and replace the MIPS
architecture symbols. Requires one extra patch for the DIV_ROUND_*
macros, which have moved to a different header since 5.10.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

The CPU peripherals on RTL83xx/RTL930x are connected to the CPU via the
Lexra bus. This bus can provide a clock signal to these peripherals, but
no clock driver is currently available. Instead, use a fixed-clock to
provide the clock frequency, and update the dependent peripherals.

Lexra bus clock frequencies:
- RTL838x: 200MHz
- RTL839x: 200MHz
- RTL930x: 175MHz

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

All current devices use identical bootargs, so let's move that to the
common devicetree includes.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Segers <foss@volatilesystems.org>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

Recent versions of Realtek's SDK reset both the ethernet NIC and queues
(SW_NIC_RST and SW_Q_RST bits) when initialising the hardware.

Furthermore, when issuing a CPU reset on the Zyxel GS1900-8 (not
supported by any current driver), the networking part of the SoC is not
reset. This leads to unresponsive network after the restart. By
resetting both the ethernet NIC and queues, networking always comes up
reliably.

Suggested-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

This fixes WARNing, missing clocks and
[   10.422481] bcm_ns_usb2 1800c164.usb2-phy: Clock not defined

Fixes: 5901917b ("bcm53xx: use more upsteam DT patches from 5.16 / 5.17")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

This fixes:
[   10.440495] bcm_ns_usb2 1800c000.usb2-phy: can't request region for resource [mem 0x1800c000-0x1800cfff]
[   10.450039] bcm_ns_usb2 1800c000.usb2-phy: Failed to map DMU regs
[   10.456183] bcm_ns_usb2: probe of 1800c000.usb2-phy failed with error -16
caused by conflict in allocating resources.

Fixes: f55f1dba ("bcm53xx: switch to the kernel 5.10")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>