upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
reimplemented cns3xxx_pci_read_config() using pci_generic_config_read32(),
which preserved the property of only doing 32-bit reads.
It also replaced cns3xxx_pci_write_config() with pci_generic_config_write(),
so it changed writes from always being 32 bits to being the actual size,
which works just fine.
Due to:
- The documentation does not mention that only 32 bit access is allowed.
- Writes are already executed using the actual size
- Extensive testing shows that 8b, 16b and 32b reads work as intended
It makes perfectly sense to also swap 32 bit reading in favor of actual size.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Originally, cns3xxx used it's own functions for mapping, reading and writing registers.
Upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
removed the internal PCI config write function in favor of the generic one:
cns3xxx_pci_write_config() --> pci_generic_config_write()
cns3xxx_pci_write_config() expected aligned addresses, being produced by cns3xxx_pci_map_bus()
while the generic one pci_generic_config_write() actually expects the real address
as both the function and hardware are capable of byte-aligned writes.
This currently leads to pci_generic_config_write() writing
to the wrong registers on some ocasions.
First issue seen due to this:
- driver ath9k gets loaded
- The driver wants to write value 0xA8 to register PCI_LATENCY_TIMER, located at 0x0D
- cns3xxx_pci_map_bus() aligns the address to 0x0C
- pci_generic_config_write() effectively writes 0xA8 into register 0x0C (CACHE_LINE_SIZE)
This seems to cause some slight instability when certain PCI devices are used.
Another issue example caused by this this is the PCI bus numbering,
where the primary bus is higher than the secondary, which is impossible.
Before:
00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 255
Bus: primary=02, secondary=01, subordinate=ff, sec-latency=0
After fix:
00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 255
Bus: primary=00, secondary=01, subordinate=02, sec-latency=0
And very likely some more ..
Fix all by omitting the alignment being done in the mapping function.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
The following patch was integrated upstream:
* target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
This fixes tries to work around the following security problems:
* CVE-2018-3620 L1 Terminal Fault OS, SMM related aspects
* CVE-2018-3646 L1 Terminal Fault Virtualization related aspects
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Backport an upstream fix for a remotely exploitable TCP denial of service
flaw in Linux 4.9+.
The fixes are included in Linux 4.14.59 and later but did not yet end up in
version 4.9.118.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit fefe1da440)
Refreshed all patches.
Compile-tested on: ar71xx
Runtime-tested on: ar71xx
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
(backported from commit f7036a34ac)
* Refreshed patches.
* Removed patches:
- target/linux/ar71xx/patches-4.9/103-MIPS-ath79-fix-register-address-in-ath79_ddr_wb_flus.patch superseded by upstream
- target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch superseded by upstream
- target/linux/brcm63xx/patches-4.9/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch accepted upstream
- target/linux/brcm63xx/patches-4.9/001-4.15-08-bcm63xx_enet-correct-clock-usage.patch accepted upstream
- target/linux/brcm63xx/patches-4.9/001-4.15-09-bcm63xx_enet-do-not-write-to-random-DMA-channel-on-B.patch accepted upstream
- target/linux/generic/pending-4.9/900-gen_stats-fix-netlink-stats-padding.patch
* New backported patch to address ext4 breakage, introduced in 4.9.112:
- backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
Also add ARM64_SSBD symbol to ARM64 targets still running kernel 4.9
Thanks to Koen Vandeputte for pointing out the need to add the ARM64_SSBD symbol, and the ext4 patch.
Compile-tested on: ar71xx
Run-tested on: ar71xx
Signed-off-by: Stijn Segers <foss@volatilesystems.org>
This is a new & warm feature that allows nesting partiitons in DT and
mixing their types (e.g. static vs. dynamic). It's very useful for
boards that have most partitions static but some of them require extra
parsing (e.g. a "firmware" partition).
It's required to successfully backport support for new devices using
that new syntax in their DT files.
Since brcm63xx has a custom alternative patch the upstream one is being
reverted for it. The plan is to make brcm63xx use the upstream
implementation.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 2a598bbaa3)
Two tiny & trivial patches with no regression risk. One simplifies
bcm53xx downstream patch.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 6bcafea2c0)
Refreshed patches. The following patches were upstreamed and have been deleted:
* target/linux/ar71xx/patches-4.9/106-01-MIPS-ath79-fix-AR724X_PLL_REG_PCIE_CONFIG-offset.patch
* target/linux/generic/pending-4.9/180-net-phy-at803x-add-support-for-AT8032.patch
* target/linux/generic/pending-4.9/181-net-usb-add-lte-modem-wistron-neweb-d18q1.patch
* target/linux/generic/pending-4.9/182-net-qmi_wwan-add-BroadMobi-BM806U-2020-2033.patch
Signed-off-by: Stijn Segers <foss@volatilesystems.org>
Refreshed all patches
Added new ARM64 symbol: ARM64_ERRATUM_1024718
Compile-tested on: ar71xx
Runtime-tested on: ar71xx
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
These patches were finally accepted and are already present in the
Linus's tree. This should be good enough to make is "backport" material.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
In the commit bde5e7a632 ("kernel: backport mtd implementation for
"compatible" in "partitions" subnode") patches that got accepted into
l2-mtd.git were backported to the kernels 4.9 and 4.14. Unfortunately
there was a regression report, patches were dropped and never reached
4.16.
This commit replaces these pseudo-backports with the latest version
that includes regression fix and futher changes that were requested.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This replaces the current patches used to make the kernel headers
compatible with musl with the version which was accepted upstream. This
is included in upstream kernel 4.15.
This was compile tested with iproute2 build on all supported kernel
versions with musl and one one with glibc.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
nftables 0.8.1 generates some new commands which will not work without
this on big endian systems. This patch is included in Linux 4.11 and
later.
My rule matching a TCP port was not working:
nft add rule ip foo bar ct state new tcp dport 22 accept
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This backports upstream support for "compatible" DT property set for the
"partitions" subnode of flash node. It allows specifying how partitions
should be created/parsed. Right now only "fixed-partitions" is
supported.
It should eventually replace our downstream "linux,part-probe" solution.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
