Commit Graph

450 Commits

Author SHA1 Message Date
George Amanakis
1e3800df18 mvebu: fixes commit a7e68927d0
err_free_stats has been deprecated. Replace with err_netdev.

Compile-tested on: mvebu
Runtime-tested on: mvebu

Fixes: a7e68927d0 ("kernel: bump 4.14 to 4.14.125 (FS#2305 FS#2297)")
Signed-off-by: George Amanakis <gamanakis@gmail.com>
2019-06-16 19:03:04 +02:00
Koen Vandeputte
a7e68927d0 kernel: bump 4.14 to 4.14.125 (FS#2305 FS#2297)
Refreshed all patches.

This bump contains upstream commits which seem to avoid (not properly fix)
the errors as seen in FS#2305 and FS#2297

Altered patches:
- 403-net-mvneta-convert-to-phylink.patch
- 410-sfp-hack-allow-marvell-10G-phy-support-to-use-SFP.patch

Compile-tested on: ar71xx, cns3xxx, imx6, mvebu, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-12 15:04:09 +02:00
Koen Vandeputte
f442b306f9 kernel: bump 4.14 to 4.14.120
Refreshed all patches.

Remove upstreamed:
- 103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch
- 060-fix-oxnas-rps-dt-match.patch

Altered patches:
- 0067-generic-Mangle-bootloader-s-kernel-arguments.patch
- 006-mvebu-Mangle-bootloader-s-kernel-arguments.patch
- 996-generic-Mangle-bootloader-s-kernel-arguments.patch

Compile-tested on: ar71xx, cns3xxx, imx6, mvebu, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-21 09:45:15 +02:00
Jeff Kletsky
b3770eaca3 mtd: base-files: Unify dual-firmware devices (Linksys)
Consistently handle boot-count reset and upgrade across
ipq40xx, ipq806x, kirkwood, mvebu

Dual-firmware devices often utilize a specific MTD partition
to record the number of times the boot loader has initiated boot.

Most of these devices are NAND, typically with a 2k erase size.
When this code was ported to the ipq40xx platform, the device in hand
used NOR for this partition, with a 16-byte "record" size. As the
implementation of `mtd resetbc` is by-platform, the hard-coded nature
of this change prevented proper operation of a NAND-based device.

* Unified the "NOR" variant with the rest of the Linksys variants

* Added logging to indicate success and failure

* Provided a meaningful return value for scripting

* "Protected" the use of `mtd resetbc` in start-up scripts so that
   failure does not end the boot sequence

* Moved Linksys-specific actions into common `/etc/init.d/bootcount`

For upgrade, these devices need to determine which partition to flash,
as well as set certain U-Boot envirnment variables to change the next
boot to the newly flashed version.

* Moved upgrade-related environment changes out of bootcount

* Combined multiple flashes of environment into single one

* Current-partition detection now handles absence of `boot_part`

Runtime-tested: Linksys EA8300

Signed-off-by: Jeff Kletsky <git-commits@allycomm.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[checkpatch.pl fixes, traded split strings for 80+ chars per line]
2019-05-18 13:43:51 +02:00
Josef Schlehofer
eb7eed416b mvebu: add kmod-i2c-mux-pca954x for Turris Omnia
The driver is for the I2C mux.
Schematic available at https://doc.turris.cz/doc/_media/rtrom01-schema.pdf

Signed-off-by: Josef Schlehofer <josef.schlehofer@nic.cz>
Tested-by: Rosen Penev <rosenp@gmail.com>
2019-05-15 13:34:23 +02:00
Tomasz Maciej Nowak
de3387654b mvebu: add images for additional ESPRESSObin boards
This commit adds support for different iterations of ESPRESSObin.
The added variants are:

ESPRESSObin with soldered eMMC,

ESPRESSObin V7, compared to V5 some passive elements changed and ethernet
ports labels positions have been reversed,

ESPRESSObin V7 with soldered eMMC.

Please refer to:
584d7c5 ("mvebu: new subtarget cortex A53")
for instruction how to boot OpenWrt image placed on SD card. It is
advised for owners of V5 and previous with bootloader based on U-Boot
2015.01, to upgrade the latest version available at:
http://espressobin.net/tech-spec.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
ee96fa15b1 mvebu: use device-tree board detection
Convert whole target to Device Tree based board detection instead of
identifying devices by dts file name. With this we can drop mvebu.sh
translation script and rely on common method for model detection.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
a39d2a8053 mvebu: align device names to vendor_device format
Add vendors in device names and also rename few device names, for easier
identyfying potential firmware to flash. The vendor and device string is
mainly derived from model/compatipble string in dts from particular
device, but since not all devices are well described, some of the renames
follow marketing names.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
30b5554411 mvebu: image: don't create unnecessarily shell variables
Use make syntax to pass the U-Boot image location and boot with root
partitions size, instead of relying on shell functions and variables.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
9509a6df0b mvebu: image: improve readability of device recipes
Drop overly complex amount of defines wich are referenced in the same
devices pool and move image recipes to common define, since devices not
using them overwrite it.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
fb005d688e mvebu: image: introduce BOOT_SCRIPT variable
All of U-Boot scripts repeat the same pattern with only Device Tree blob
name changing for respective device. Therefore create generic scripts
which will be altered on demad by image build process, and create
BOOT_SCRIPT variable which can be added to device recipe and will allow
referencing the same script by many device recipes. This will allow to
slim down the ammount of files in buildroot tree and avoid needlessly
incrementing amount of boot scripts if new devices will be added.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
ef384c68e7 mvebu: image: stack repeated variables
All of arm64 devices have part of variables repeatedly defined. Stack
them to common define, and reference it in each device recipe.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Tomasz Maciej Nowak
f0c2bac252 mvebu: remove unnecessary code building dtbs
Even if dts is not included in upstream Makefile, it is built anyway by
recipe specified in include/image.mk. Also remove Build/dtb, it's not
used since 3f72f3a ("mvebu: clearfog: include DTB for all variants in
image").

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-05-11 23:11:04 +02:00
Hauke Mehrtens
46af22de16 kernel: Remove CONFIG_COMPAT
This removes support for executing old 32 bit applications on 64 bit ARM
and MIPS kernels.
On OpenWrt we normally compile all the user space applications on our
own and do not support third party binary only modules especial not 32
bit applications on 64 bit CPUs.

This reduces the attack surface on such systems and should also save
some memory.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-05-11 17:15:41 +02:00
Hauke Mehrtens
32eb66881c kernel: Activate CONFIG_ARM64_SW_TTBR0_PAN
This activates "Emulate Privileged Access Never using TTBR0_EL1
switching" on ARM64.

This should prevent the kernel from reading code from user space in
kernel context.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-05-11 17:15:41 +02:00
Klaus Kudielka
0a11c87e46 mvebu: fix board_name condition in 79_move_config
The correct board_name for the Turris Omnia is armada-385-turris-omnia.

Fixes: 4e8345ff68 ("mvebu: base-files: autodetect upgrade device")
Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com>
2019-05-11 16:37:11 +02:00
Koen Vandeputte
da5bd73d70 kernel: bump 4.14 to 4.14.112
Refreshed all patches.

New symbol:
- CONFIG_LDISC_AUTOLOAD

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-04-22 21:15:17 +02:00
Tomasz Maciej Nowak
2e5a0b81ec mvebu: sysupgrade: sdcard: keep user added partitons
Currently sysupgrade overwrites whole disk and destroys partitions added
by user. Sync the sysupgrade code with the one present in x86 target to
remedy this behaviour.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-04-06 16:31:10 +02:00
Tomasz Maciej Nowak
4e8345ff68 mvebu: base-files: autodetect upgrade device
Since some boards could be also booted from other mediums than SD card,
lets make the upgrade block device autodetected.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-04-06 16:31:10 +02:00
Tomasz Maciej Nowak
727c3df5bb mvebu: shrink amount of packages and reorganize them
Since most of devices using SD card image to boot, use ext4 as boot
files system we can drop fat fs related packages. Also move packages
which are added repeatedly across subtargets to their default packages,
with droping the ones that are enabled in target kernel configugation.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-04-06 16:31:10 +02:00
Tomasz Maciej Nowak
55b4ff7f73 mvebu: use ext4 for clearfog image bootfs
This will allow to drop additional packages and shrink image size.

Cc: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-04-06 16:31:10 +02:00
Tomasz Maciej Nowak
910eb994eb mvebu: make bootfs size for sdcard image configurable
Let's take this oportunity to implement boot-part and rootfs-part feature
flags.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-04-06 16:31:10 +02:00
Koen Vandeputte
af6c86dbe5 kernel: bump 4.14 to 4.14.108
Refreshed all patches.

Altered patches:
- 950-0033-i2c-bcm2835-Add-debug-support.patch

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-03-27 10:48:59 +01:00
Hauke Mehrtens
63ed513779 mvebu: Add dependency to kmod-i2c-mux-pca954x for armada-macchiatobin
This driver is needed for the I2C mux on the board.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
2019-03-26 15:12:01 +01:00
Hauke Mehrtens
3d945f5706 mvebu: Refresh kernel configuration
This refreshes the current kernel configuration to remove unneeded
options, add some automatically added ones and reorders them. The normal
build did this automatically, so the builds already used this
configuration.

CONFIG_HW_RANDOM_OMAP is explicitly activated for the cortexa72
subtarget because it has an inside-secure,safexcel-eip76 IP core.

This was done with this command on the cortexa9 subtarget:
	make kernel_oldconfig
and this one on the other subtargets:
	make kernel_oldconfig CONFIG_TARGET=subtarget

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-03-26 15:11:39 +01:00
Hauke Mehrtens
ae9d3a25c2 mvebu: Fix typo in MACCHIATOBin detection
The name in the device tree file is written with two C.

Signed-off-by: Hauke Mehrtens <hauke.mehrtens@intel.com>
2019-03-25 22:50:28 +01:00
Koen Vandeputte
a8cfef6c45 kernel: bump 4.14 to 4.14.106
Refreshed all patches.

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-03-18 10:02:51 +01:00
Koen Vandeputte
1cfbf95393 kernel: bump 4.14 to 4.14.104
Refreshed all patches.

Altered patches:
- 332-arc-add-OWRTDTB-section.patch

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-03-05 13:19:43 +01:00
Koen Vandeputte
89bf16ad50 kernel: bump 4.14 to 4.14.98
Refreshed all patches.

Remove upstreamed:
- 100-arm-cns3xxx-fix-writing-to-wrong-PCI-registers-after.patch

Altered patches:
- 721-phy_packets.patch

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-02-08 17:27:47 +01:00
Tomasz Maciej Nowak
7d188fb4db mvebu: backport upstream fixes for armada 37xx
Upstream patches for processor frequency scaling, which fix possible
system hard lockups.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-01-27 00:16:14 +01:00
Tomasz Maciej Nowak
9b1102416f mvebu: espressobin: correct spi node in dts
Drop customizations in:
508-arm64-dts-armada-3720-espressobin-wire-up-spi-flash.patch
and move them to separate patch, with broader explanation.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-01-27 00:16:14 +01:00
Tomasz Maciej Nowak
b004835908 mvebu: sort armada 37xx upstream patches chronologically
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-01-27 00:16:14 +01:00
Tomasz Maciej Nowak
9f6c4ba25c mvebu: move HARDEN_BRANCH_PREDICTOR to common config
This symbol is enabled in all subtargets, move it to common kernel
config.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
Acked-by: Rosen Penev <rosenp@gmail.com>
2019-01-27 00:16:14 +01:00
Tomasz Maciej Nowak
650df59e8a mvebu: remove default profile
When using Image Builder and building image for Cortex A53 or
A72 subtargets, it'll fail with following message:

Collected errors:
 * opkg_install_cmd: Cannot install package mwlwifi-firmware-88w8864.
 * opkg_install_cmd: Cannot install package mwlwifi-firmware-88w8964.
make[2]: *** [Makefile:153: package_install] Error 255
make[1]: *** [Makefile:114: _call_image] Error 2

This is beacuse both packages are available only for Cortex A9 subtarget
and are included in PACKAGES array in default profile. Instead patching
this, let's remove profiles completely, since all necessary packages are
specified in DEVICE_PACKAGES array for each device.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-01-26 10:45:34 +01:00
Koen Vandeputte
e14dc93073 kernel: bump 4.14 to 4.14.81
Refreshed all patches.

Removed upstreamed patches:
- 081-spi-bcm-qspi-switch-back-to-reading-flash-using-smal.patch

Altered patches:
- 0054-cpufreq-dt-Handle-OPP-voltage-adjust-events

Compile-tested on: cns3xxx, imx6, ipq806x, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-11-14 16:27:43 +01:00
Koen Vandeputte
ca88f4153f kernel: bump 4.14 to 4.14.77
Refreshed all patches.

Altered patches:
- 666-Add-support-for-MAP-E-FMRs-mesh-mode.patch

New symbol for arm targets:
- HARDEN_BRANCH_PREDICTOR

Compile-tested on: ar71xx, cns3xxx, imx6
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-10-19 10:01:57 +02:00
Mathias Kresin
80c61c161a treewide: use wpad-basic for not small flash targets
Add out of the box support for 802.11r and 802.11w to all targets not
suffering from small flash.

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

Mathias did all the heavy lifting on this, but I'm the one who should
get shouted at for committing.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-10-16 15:07:41 +01:00
Koen Vandeputte
7bfe757bc4 kernel: bump 4.14 to 4.14.73
Refreshed all patches.

Removed upstreamed:
- 192-Revert-ubifs-xattr-Don-t-operate-on-deleted-inodes.patch

Compile-tested on: cns3xxx, imx6, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-10-02 13:44:36 +02:00
John Crispin
61b5b4971e mac80211: make ath10k-ct the default ath10k
We select ath10k-ct by default, but it is still possible to build
the upstream version.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <john@phrozen.org>
2018-09-26 16:39:44 +02:00
Koen Vandeputte
0dbdb476f3 kernel: bump 4.14 to 4.14.71
Refreshed all patches.

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-09-21 13:23:16 +02:00
Koen Vandeputte
0cda4af005 kernel: bump 4.14 to 4.14.70
Refreshed all patches.

Added new patch:
- 192-Revert-ubifs-xattr-Don-t-operate-on-deleted-inodes.patch

This fixes a bug introduced in upstream 4.14.68 which caused targets using
ubifs to produce file-system errors on boot, rendering them useless.

Compile-tested on: cns3xxx, imx6, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-09-17 15:47:44 +02:00
Rosen Penev
6a2ee91267 mvebu: Replace RTC initialization patch with upstreamed version
While we're at it, rename the patches to their proper git format-patch
name.

Tested on a Turris Omnia.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2018-09-10 09:11:31 +02:00
Paul Wassi
e348ccc4e6 treewide: fix some cosmetic glitches in dts files
- fix single spaces hidden by a tab
- replace indentation with spaces by tabs
- make empty lines empty
- drop trailing whitespace
- drop unnecessary blank lines

Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Paul Wassi <p.wassi@gmx.at>
2018-08-27 19:31:17 +02:00
Koen Vandeputte
f960490fc8 kernel: bump 4.14 to 4.14.60
Refreshed all patches

Removed upstreamed patches:
- 500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch

Compile-tested on: cns3xxx, imx6, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-08-03 16:10:38 +02:00
Stijn Tintel
77e3e706ce kernel: add missing ARM64_SSBD symbol
In 4.14.57, a new symbol for Spectre v4 mitigation was introduced for
ARM64. Add this symbol to all ARM64 targets using kernel 4.14.

This mitigates CVE-2018-3639 on ARM64.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2018-07-31 12:22:11 +03:00
Kevin Darbyshire-Bryant
094d49cddf kernel: bump 4.14 to 4.14.51
The sender domain has a DMARC Reject/Quarantine policy which disallows
sending mailing list messages using the original "From" header.

To mitigate this problem, the original message has been wrapped
automatically by the mailing list software.
Refresh patches.

Remove patch that can be reverse applied:
mvebu/patches-4.14/530-ATA-ahci_mvebu-enable-stop_engine-override.patch
mvebu/patches-4.14/531-ATA-ahci_mvebu-pmp-stop-errata-226.patch

Update patch that no longer applied:
ipq806x/patches-4.14/0035-clk-mux-Split-out-register-accessors-for-reuse.patch

Compiled-tested-for: lantiq, ramips
Run-tested-on: lantiq BT hh5a, ramips MIR3g

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Tested-by: Michael Yartys <michael.yartys@protonmail.com>
Tested-by: Rosen Penev <rosenp@gmail.com>
2018-06-26 08:57:21 +02:00
Hannu Nyman
414ce80c07 mvebu: enable CONFIG_HW_RANDOM
Enable the Hardware Random Number Generator Core infrastructure
in kernel.

Needed for hardware random number generator drivers like chaoskey

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
2018-06-18 20:29:38 +02:00
Jeremiah McConnell
e820455198 mvebu: backport ahci_mvebu errata patchset
Marvell ahci hardware requires a workaround to prevent eSATA failures
on hotplug/reset when used with multi-bay external enclosures.

Errata Ref#226 - SATA Disk HOT swap issue when connected through Port
Multiplier in FIS-based Switching mode.

These patches backport the workaround from 4.17.

Signed-off-by: Jeremiah McConnell <miah@miah.com>
2018-06-18 20:28:20 +02:00
Tomasz Maciej Nowak
f5bce268b0 mvebu: replace espressobin spi patch with upstream one
For easier future kernel bumps replace spi patch with upstream version
slightly modified. The modification removes partition definitions which
has been diffrent for some U-Boot versions.
Also this removes unnecessary i2c definition which was in the old patch.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2018-06-18 07:10:20 +02:00
Tomasz Maciej Nowak
772258044b mvebu: reduce speed to gen1 for espressobin pcie
Since the beginning there's been an issue with initializing the Atheros
based MiniPCIe wireless cards. Here's an example of kerenel log:

 OF: PCI: host bridge /soc/pcie@d0070000 ranges:
 OF: PCI:   MEM 0xe8000000..0xe8ffffff -> 0xe8000000
 OF: PCI:    IO 0xe9000000..0xe900ffff -> 0xe9000000
 advk-pcie d0070000.pcie: link up
 advk-pcie d0070000.pcie: PCI host bridge to bus 0000:00
 pci_bus 0000:00: root bus resource [bus 00-ff]
 pci_bus 0000:00: root bus resource [mem0xe8000000-0xe8ffffff]
 pci_bus 0000:00: root bus resource [io  0x0000-0xffff](bus address[0xe9000000-0xe900ffff])
 pci 0000:00:00.0: BAR 0: assigned [mem0xe8000000-0xe801ffff 64bit]
 pci 0000:00:00.0: BAR 6: assigned [mem0xe8020000-0xe802ffff pref]
 [...]
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x3c
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x44
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x4
 ath9k 0000:00:00.0: enabling device (0000 -> 0002)
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x3c
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0xc
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x4
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x40
 ath9k 0000:00:00.0: request_irq failed
 advk-pcie d0070000.pcie: Posted PIO Response Status: CA,0xe00 @ 0x4
 ath9k: probe of 0000:00:00.0 failed with error -22

The same happens for ath5k cards, while ath10k card didn't appear at
all (not detected):

 OF: PCI: host bridge /soc/pcie@d0070000 ranges:
 OF: PCI:   MEM 0xe8000000..0xe8ffffff -> 0xe8000000
 OF: PCI:    IO 0xe9000000..0xe900ffff -> 0xe9000000
 advk-pcie d0070000.pcie: link never came up
 advk-pcie d0070000.pcie: PCI host bridge to bus 0000:00
 pci_bus 0000:00: root bus resource [bus 00-ff]
 pci_bus 0000:00: root bus resource [mem0xe8000000-0xe8ffffff]
 pci_bus 0000:00: root bus resource [io  0x0000-0xffff](bus address[0xe9000000-0xe900ffff])
 advk-pcie d0070000.pcie: config read/write timed out

Following the issue on esppressobin.net forum [1] the workaround seems
to be limiting the speed of PCIe bridge to 1st generation. This fixed
the initialisation of all tested Atheros wireless cards.

The change shouldn't affect the performance for wireless cards,
it could reduce the performance of storage controller cards but since
OpenWrt focuses on wireless connectivity, fixing compatibility with
wireless cards should be a priority.

For the record, the iwlwifi and mt76 cards were not affected by this
issue.

1. http://espressobin.net/forums/topic/which-pcie-wlan-cards-are-supported

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2018-06-18 07:10:20 +02:00