The current patch produces the following error when CONFIG_DMABUF_HEAPS is
enabled:
drivers/built-in.a: member drivers/dma-buf/heaps in archive is not an object
Fixes: b10d604459 ("kernel: add linux 5.10 support")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Backport support for dual-role USB 2.0 as that's what is actually
built-into MT7623.
Improve HDMI console by enabling VT and setting up tty1..tty6.
Re-add accidentally removed CONFIG_ARM_ARCH_TIMER.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
According to https://docs.onion.io/omega2-docs/mac-address.html, 0x28 is
the correct location to read the address on Onion Omega 2(+) devices.
This fixes a regression introduced by commit 77e850fe76 ("ramips: tidy up
MAC address setup for Linkit Smart and Omega2"), which was a cleanup that
intended to preserve existing behavior. In my testing with v19.07.7,
however, the MAC address determined from the device tree takes precedence
over the one set by 02_network, so the aforementioned commit actually
changed the behavior.
Signed-off-by: Michael Siegenthaler <msiegen@google.com>
[Adapt patch to nvmem usage]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
In order to make HDMI console available on the BananaPi BPi-R2 select
various Kconfig symbols which are useful for systems with graphics.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Do not deactivate the kernel configuration symbol CONFIG_STAGING in the
target configurations any more. This prevented the build of the exfat.ko
for example.
Fixes: FS#3979
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The ext3 driver was already removed, the kernel config options are only
there for backwards compatibility. The eth4 driver takes care of ext3
file systems. The ext4 driver also handled ext2 file systems.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The ext3 driver was already removed, the kernel config options are only
there for backwards compatibility. The eth4 driver takes care of ext3
file systems.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Convert this series by moving the definitions to the individual
devices.
Now all devices on ramips are converted.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Due to use of a script when migrating from mtd-mac-address, a few
of the definitions are redundant in DTSI and DTS files. Remove
those and consolidate the definitions in parent DTSI files in a
few cases.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Due to use of a script when migrating from mtd-mac-address, a few
of the definitions are redundant in DTSI and DTS files. Remove
those.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Since the nvmem-based approach for retrieving MAC addresses
appears to depend on the addresses being set up after the
partitions, it is no longer possible to keep the MAC address
setup in shared DTSI files while the partitions itself are
set up in DTS files for the individual devices.
In ath79 the firmware partition is typically located somewhere
"in the middle" of the partition table. Thus, it's not trivial
to share the partitions containing MAC address information in
a common DTSI (like we did in some cases on ramips).
In this commit, MAC address setup is thus moved to the relevant
partitions, and in most cases needs to be duplicated. While
the duplication is not really nice, it eventually provides a
cleaner and more tidy setup, making the DTS(I) file
fragmentation a bit more logical. This should also help
with adding new devices, as information is distributed across
less locations.
For consistency, this commit also moves the mtd-cal-data property
"down" together with the MAC address setup, so it's not based
on a partition before the latter is defined either. (This is
only done for those files touched due to nvmem conversion.)
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Convert most of the cases from mtd-mac-address to nvmem where
MAC addresses are set in the DTSI, but the partitions are only
located in the device DTS. This posed some problems earlier, since
in these cases we are using partitions before they are defined,
and the nvmem system did not seem to like that.
There have been a few different resolution approaches, based on
the different tradeoffs of deduplication vs. maintainability:
1. In many cases, the partition tables were identical except for
the firmware partition size, and the firmware partition was
the last in the table.
In these cases, the partition table has been moved to the
DTSI, and only the firmware partition's "reg" property has
been kept in the DTS files. So, the updated nvmem definition
could stay in the DTSI files as well.
2. For all other cases, splitting up the partition table would
have introduced additional complexity. Thus, the nodes to be
converted to nvmem have been moved to the DTS files where the
partitioning was defined.
3. For Netgear EX2700 and WN3000RP v3, the remaining DTSI file
was completely dissolved, as it was quite small and the name
was not really nice either.
4. The D-Link DIR-853 A3 was converted to nvmem as well, though
it is just a plain DTS file not taken care of in the first
wave.
In addition, some minor rearrangements have been made for tidyness.
Not covered (yet) by this patch are:
* Various unielec devices
* The D-Link DIR-8xx family
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The bootloader will look for a configuration section named ap.dk01.1-c2
in the FIT image. If this doesn't exist, the device won't boot.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
The mt76x8 subtarget is the only one in ramips that stores the
mediatek,mtd-eeprom property directly in the "root" mt7628an.dtsi.
This is not optimal for a few different reasons:
* If you don't really know it or are used to other (sub)targets,
the property will be set somewhat magically.
* The property is set based on &factory partition before (if at all)
this partition is defined.
* There are several devices that have different offset or even
different partitions to read from, which will then be overwritten
in the DTS files. Thus, definitions are scattered between root
DTSI and individual files.
Based on these circumstances, the "root" definition is removed and
the property is added to the device-based DTS(I) files where needed
and applicable. This should be easier to grasp for unexperienced
developers and will move the property closer to the partition
definitions.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
While an image layout based on MBR and 'bootfs' partition may be easy
to understand for users who are very used to the IBM PC and always have
the option to access the SD card outside of the device (and hence don't
really depend on other recovery methods or dual-boot), in my opinion
it's a dead end for many desirable features on embedded systems,
especially when managed remotely (and hence without an easy option to
access the SD card using another device in case things go wrong, for
example).
Let me explain:
* using a MSDOS/VFAT filesystem to store kernel(s) is problematic, as a
single corruption of the bootfs can render the system into a state
that it no longer boots at all. This makes dual-boot useless, or at
least very tedious to setup with then 2 independent boot partitions
to avoid the single point of failure on a "hot" block (the FAT index
of the boot partition, written every time a file is changed in
bootfs). And well: most targets even store the bootloader environment
in a file in that very same FAT filesystem, hence it cannot be used
to script a reliable dual-boot method (as loading the environment
itself will already fail if the filesystem is corrupted).
* loading the kernel uImage from bootfs and using rootfs inside an
additional partition means the bootloader can only validate the
kernel -- if rootfs is broken or corrupted, this can lead to a reboot
loop, which is often a quite costly thing to happen in terms of
hardware lifetime.
* imitating MBR-boot behavior with a FAT-formatted bootfs partition
(like IBM PC in the 80s and 90s) is just one of many choices on
embedded targets. There are much better options with modern U-Boot
(which is what we use and build from source for all targets booting
off SD cards), see examples in mediatek/mt7622 and mediatek/mt7623.
Hence rename the 'sdcard' feature to 'legacy-sdcard', and prefix
functions with 'legacy_sdcard_' instead of 'sdcard_'.
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This resolves incosnsitencies of the configured RX / TX flow control
modes between different boards or bootloaders.
Signed-off-by: David Bauer <mail@david-bauer.net>
The chip supports clock speeds up to 50 MHz, however it won't even read
the chip-id correctly at this frequency.
45 MHz however works reliable.
Signed-off-by: David Bauer <mail@david-bauer.net>
When a target configuration has unser Kconfig symbols, the build will
fail when OpenWrt is compiled with V=s and stdin is connected to a tty.
In case OpenWrt is compiled without either of these preconditions, the
build will uscceed with the symbols in question being unset.
Modify the kernel configuration in a way it fails on unset symbols
regardless of the aformentioned preconditions.
Signed-off-by: David Bauer <mail@david-bauer.net>
Calling free for the OF property can result in a kernel panic, as the
buffer in question might be referenced elsewhere. Also, it is not
removed from the tree.
Always allocate a new property and updating the tree with it fixes both
issues.
Fixes commit 91a52f22a1 ("treewide: backport support for nvmem on non platform devices")
Signed-off-by: David Bauer <mail@david-bauer.net>
The EXT4 driver also takes care of EXT2 and EXT3 file systems.
Activating the EXT2 driver kernel config options unlocked some other
ext2 driver related options which OpenWrt did not take care of.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The change which backported the of_get_mac_address() change broke some
patches in the layerscape target so the patches did not apply any more.
This commit makes them apply again and also fixes some other problems
related to this change.
Fixes commit 91a52f22a1 ("treewide: backport support for nvmem on non platform devices")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The code from ks8851.c was moved to ks8851_common.c, so it was not
backported. This broke the compile of the omap target which uses this
driver.
Fixes commit 91a52f22a1 ("treewide: backport support for nvmem on non platform devices")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This patch is backported from linux-arm-kernel [1] to improve situation, when
it was reported that 1.2 GHz variant is unstable with DFS.
It waits to be accepted upstream, however, it waits for Marvell people to respond.
[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210630225601.6372-1-kabel@kernel.org/
Fixes: 7b868fe04a ("Revert "mvebu: 5.4 fix DVFS caused random boot crashes"")
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Based on the discussion on the mailing list [1], the patch which was
reverted, it reverts only one patch without the subsequent ones.
This leads to the SoC scaling issue not using a CPU parent clock, but
it uses DDR clock. This is done for all variants, and it's wrong because
commits (hacks) that were using the DDR clock are no longer in the mainline kernel.
If someone has stability issues on 1.2 GHz, it should not affect all
routers (1 GHz, 800 MHz) and it should be rather consulted with guys, who are trying to
improve the situation in the kernel and not making the situation worse.
There are two solutions in cases of instability:
a) disable cpufreq
b) underclock it up to 1 GHz
This reverts commit 080a0b74e3.
[1] https://lists.openwrt.org/pipermail/openwrt-devel/2021-June/035702.html
Fixes: d379476817 ("mvebu: armada-37xx: add patch to forbid cpufreq for 1.2 GHz")
CC: Pali Rohár <pali@kernel.org>
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
This option is needed e.g. to use strongswan for IPSec.
BTW: This was the only target where this option was disabled.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
This uses "hdparm" (if present) to get the harddisk into low
power mode on NAS set-ups.
Cc: Adrian Schmutzler <mail@adrianschmutzler.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Based on the discussion on the mailing list [1], the patch which was
reverted, it reverts only one patch without the subsequent ones.
This leads to the SoC scaling issue not using a CPU parent clock, but
it uses DDR clock. This is done for all variants, and it's wrong because
commits (hacks) that were using the DDR clock are no longer in the mainline kernel.
If someone has stability issues on 1.2 GHz, it should not affect all
routers (1 GHz, 800 MHz) and it should be rather consulted with guys, who are trying to
improve the situation in the kernel and not making the situation worse.
There are two solutions in cases of instability:
a) disable cpufreq
b) underclock it up to 1 GHz
This reverts commit 080a0b74e3.
[1] https://lists.openwrt.org/pipermail/openwrt-devel/2021-June/035702.html
CC: Pali Rohár <pali@kernel.org>
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Follow the recommendations stated in the Turris Omnia DTS for eth2:
"In case SFP module is present, U-Boot has to enable the sfp node above,
remove phy-handle property, and add managed = "in-band-status" property."
The boot script is written in a way, that it works for all U-Boot
versions deployed by the vendor so far (2015.10-rc2, 2019.07).
Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Kernel 5.4 receives a reduced set, just to make the SFP cage work.
While we are at it, move the patches accepted upstream to the 0xx series.
Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Kernel 5.10 receives the complete set of improvements from 5.11/5.12.
While we are at it, move the patches accepted upstream to the 0xx series.
Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Add the missing CONFIG_KCSAN (disabled). Found while making kernel_oldconfig on
an x86-64 subtarget.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Now that we have a generic sdcard upgrade method, which was copied from
the mvebu platform method, we can switch mvebu to the generic method.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
kirkwood build broke due to missing include needed for ETH_ALEN.
Add patch (sent upstream as well) to address that.
Refresh patches for 5.4 and 5.10.
Fixes: 91a52f22a1 ("treewide: backport support for nvmem on non platform devices")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
As both the Mi Router 4A (100M) and the Mi Router 4C use the same
label-mac-device, the alias can be moved to the shared dtsi.
Signed-off-by: Fabian Bläse <fabian@blaese.de>
A superflus ')' character has slipped into commit 91a52f22a1. Remove it
to fix build.
Fixes: 91a52f22a1 ("treewide: backport support for nvmem on non platform devices")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
MT7622 provides are hardware RNG with upstream Linux driver. Enable
compilation of this driver to make use of the hardware RNG.
Signed-off-by: David Bauer <mail@david-bauer.net>
The GL-X300B is a industrial 4G LTE router based on the Qualcomm
QCA9531 SoC.
Specifications:
- Qualcomm QCA9531 @ 650 MHz
- 128 MB of RAM
- 16 MB of SPI NOR FLASH
- 2x 10/100 Mbps Ethernet
- 2.4GHz 802.11b/g/n
- 1x USB 2.0 (vbus driven by GPIO)
- 4x LED, driven by GPIO
- 1x button (reset)
- 1x mini pci-e slot (vcc driven by GPIO)
- RS-485 Serial Port (untested)
Flash instructions:
This firmware can be flashed using either sysupgrade from the GL.iNet
firmware or the recovery console as follows:
- Press and hold the reset button
- Connect power to the router, wait five seconds
- Manually configure 192.168.1.2/24 on your computer, connect to
192.168.1.1
- Upload the firmware image using the web interface
RS-485 serial port is untested and may depend on the following commit in
the GL.iNet repo:
202e83a32a
MAC addresses as verified by OEM firmware:
vendor OpenWrt address
WAN eth0 label
LAN eth1 label + 1
2g phy0 label + 2
The label MAC address was found in the art partition at 0x0
Based on vendor commit:
16c5708b20
Signed-off-by: John Marrett <johnf@zioncluster.ca>
Add the missing ARM_SCMI_PROTOCOL symbol. Apparently it was exposed
for 5.10.53 with a kernel dependency change.
Missing symbol observed with mediatek/7622 E8450/RT3200 router.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
The virtual cable tester depends on the netlink interface for ethtool.
Thus, enable it in the generic kernel configuration.
Signed-off-by: David Bauer <mail@david-bauer.net>
In the current state, nvmem cells are only detected on platform device.
To quickly fix the problem, we register the affected problematic driver
with the of_platform but that is more an hack than a real solution.
Backport from net-next the required patch so that nvmem can work also
with non-platform devices and rework our current patch.
Drop the mediatek and dsa workaround and rework the ath10k patches.
Rework every driver that use the of_get_mac_address api.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
bcm27xx-bcm2710 builds are stalling when compiled with V=s.
Explitily disable these unset symbols to avoid stalling
builds.
Signed-off-by: David Bauer <mail@david-bauer.net>
Fixes a unused variable warning:
drivers/of/of_net.c: In function 'of_get_mac_address_mtd':
drivers/of/of_net.c:92:19: warning: unused variable 'prop' [-Wunused-variable]
Signed-off-by: David Bauer <mail@david-bauer.net>
The 1st generation MediaTek PCIe host bridge cannot handle Message
Signaled Interrupts (MSIs). The core PCI code is not aware that MSI is
not available. This results in warnings of the form:
WARNING: CPU: 2 PID: 112 at include/linux/msi.h:219
pci_msi_setup_msi_irqs.constprop.8+0x64/0x6c
Modules linked in: ahci(+) libahci libata sd_mod scsi_mod
gpio_button_hotplug
CPU: 2 PID: 112 Comm: kmodloader Not tainted 5.10.52 #0
Hardware name: Mediatek Cortex-A7 (Device Tree)
Import patches that introduce the 'no_msi' attribute to signal missing
MSI support to the core PCI.
Refresh patches:
- 000-spi-fix-fifo.patch
- 330-mtk-bmt-support.patch
- 510-net-mediatek-add-flow-offload-for-mt7623.patch
- 601-PCI-mediatek-Use-regmap-to-get-shared-pcie-cfg-base.patch
- 610-pcie-mediatek-fix-clearing-interrupt-status.patch
- 700-net-ethernet-mtk_eth_soc-add-support-for-coherent-DM.patch
- 710-pci-pcie-mediatek-add-support-for-coherent-DMA.patch
Signed-off-by: Nick Hainke <vincent@systemli.org>
It still requires fixing PCIe support:
[ 6.644699] pcie_iproc_bcma bcma0:7: host bridge /axi@18000000/pcie@12000 ranges:
[ 6.652217] pcie_iproc_bcma bcma0:7: No bus range found for /axi@18000000/pcie@12000, using [bus 00-ff]
[ 6.661833] OF: /axi@18000000/pcie@12000: Missing device_type
[ 6.667622] pcie_iproc_bcma: probe of bcma0:7 failed with error -12
[ 6.673985] pcie_iproc_bcma bcma0:8: host bridge /axi@18000000/pcie@13000 ranges:
[ 6.681514] pcie_iproc_bcma bcma0:8: No bus range found for /axi@18000000/pcie@13000, using [bus 00-ff]
[ 6.691137] pcie_iproc_bcma: probe of bcma0:8 failed with error -12
[ 6.697522] pcie_iproc_bcma bcma0:9: host bridge /axi@18000000/pcie@14000 ranges:
[ 6.705048] pcie_iproc_bcma bcma0:9: No bus range found for /axi@18000000/pcie@14000, using [bus 00-ff]
[ 6.714669] pcie_iproc_bcma: probe of bcma0:9 failed with error -12
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
The label-mac logic relies on the mac-address property of a netdev
devices of-node. However, the mac address can also be stored as a
different property or read from e.g. an mtd device.
Create this node when reading a mac-address from OF if it does not
already exist and copy the mac-address used for the device to this
property. This way, the MAC address can be accessed using procfs.
Signed-off-by: David Bauer <mail@david-bauer.net>
The LEDs for LAN1 and LAN3 were swapped. Link on port 1 would illuminate
the LED on port 3 and vice versa.
Signed-off-by: David Bauer <mail@david-bauer.net>
Without explicit configuration of these pins the ethernet as well as
status LED of the device do not work correctly.
Signed-off-by: David Bauer <mail@david-bauer.net>
This reverts commit b309248730.
This commit could create a property without allocated memory, breaking
subsequent reads over a nodes property. Also, the mac-address-increment
was not applied when reading from nvmem.
Revert this commit for now, which breaks the label-mac-address logic.
Possibly, traversing the device-tree from the netdev side is easier
anyways.
Signed-off-by: David Bauer <mail@david-bauer.net>
Specifications:
* QCA9531, 16 MiB flash (Winbond W25Q128JVSQ), 128 MiB RAM
* 802.11n 2T2R (external antennas)
* QCA9887, 802.11ac 1T1R (connected with diplexer to one of the antennas)
* 3x 10/100 LAN, 1x 10/100 WAN
* UART header with pinout printed on PCB
Installation:
* The device comes with a bootloader installed only
* The bootloader offers DHCP and is reachable at http://10.123.123.1
* Accept the agreement and flash sysupgrade.bin
* Use Firefox if flashing does not work
TFTP recovery with static IP:
* Rename sysupgrade.bin to jt-or750i_firmware.bin
* Offer it via TFTP server at 192.168.0.66
* Keep the reset button pressed for 4 seconds after connecting power
TFTP recovery with dynamic IP:
* Rename sysupgrade.bin to jt-or750i_firmware.bin
* Offer it via TFTP server with a DHCP server running at the same address
* Keep the reset button pressed for 6 seconds after connecting power
Co-authored-by: Sebastian Schaper <openwrt@sebastianschaper.net>
Signed-off-by: Vincent Wiemann <vincent.wiemann@ironai.com>
This patch did not apply cleanly any more after support for the XTX
flash was added to the generic patches.
Fixes: 92012dd867 ("kernel: Add support for XTX XT26G02A SPI NAND")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This patch has been carried since introduction throughout every kernel
major bump and no one has tested if the later kernels improved the
situation. The Armada 3720 SoC can only process GbE interrupts on Core 0
and this is already limited in all stable kernels, so ditch this
workaround for 64 bit SoCs.
Ref: https://git.kernel.org/torvalds/c/cf9bf871280d
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Enable the Microsemi phy driver to support the VSC8514 QSGMII phy on the
FRWY-LS1046A board.
Otherwise, the "Generic PHY" driver is used.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
commit 2c2d77bd3b ("layerscape: add FRWY-LS1046A board support")
missed to add an entry to the 79_move_config preinit script.
Therefore, the config transfer on sysupgrade wass broken for this device.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
This reverts commit b7ee0786b5.
With the previous commit "realtek: remove rtl83xx vlan 1 special cases"
this is no longer required.
Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
On reset, the PVID of all ports is set to 1; if this is reset to 0,
the special cases for VLAN 1 are no longer required.
port_vlan_add is called with vid=0 when the DSA port interfaces are
enabled with no VLAN; previously the VLAN was not configured in this
case, relying on VLAN 1 being present, but with the PVID set to 0,
configuring VLAN 0 as normal works as expected.
Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
Add CONFIG_HAVE_ARM_ARCH_TIMER (disabled). A make kernel_oldconfig on cortexa9
will otherwise prompt for its selection. The 5.4 configuration already contains
the same symbol.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Add the new CONFIG_BATTERY_RT5033 to the generic configuration, as reported by
Paul Blazejowski. Resort the kconfig while at it.
No deleted or manually refreshed patches.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Adds support for GPON SFP modules based on the Realtek RTL8672 and
RTL9601C chips, including but not limited to:
* V-SOL V2801F
* C-Data FD511GX-RM0
* OPTON GP801R
* BAUDCOM BD-1234-SFM
* CPGOS03-0490 v2.0
* Ubiquiti U-Fiber Instant
* EXOT EGS1
Signed-off-by: Vladimir Markovets <abam_a@yahoo.com>
Latest binutils (2.37) exposed a long-standing bug. The kernel linking stage
would break at the SORTTAB step, due to the exception table having been
previously purged from vmlinux, as its section wasn't marked as unconditionally
kept. Fix thusly.
Additionally, the "#define ARM_MMU_DISCARD(x) KEEP(x)" change is bogus. It
would only apply to !CONFIG_MMU devices (which we don't support in OpenWrt), and
it would even break the build if referenced. Drop it.
While at it, rename the patch in order to make it obvious that it's
arm-specific.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
[Add same changes for kernel 5.4 too]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
