31 Aug, 2019
2 commits
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This patch adds the ethoc device configuration to the OpenRISC basic SMP
device tree config. This was tested with qemu.Signed-off-by: Stafford Horne
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This fixes several issues with the ethoc network device config.
Fisrt off, the compatible property used an obsolete compatibility
string; this caused the initialization to be skipped. Next, the
register map was not given enough space to allocate ring descriptors,
this caused module initialization to abort. Finally, we need to mark
this device as big-endian as needed by openrisc.This was tested by me in qemu, the setup is documented on the qemu wiki:
https://wiki.qemu.org/Documentation/Platforms/OpenRISC
Signed-off-by: Stafford Horne
15 Nov, 2017
1 commit
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Pull DeviceTree updates from Rob Herring:
"A bigger diffstat than usual with the kbuild changes and a tree wide
fix in the binding documentation.Summary:
- kbuild cleanups and improvements for dtbs
- Code clean-up of overlay code and fixing for some long standing
memory leak and race condition in applying overlays- Improvements to DT memory usage making sysfs/kobjects optional and
skipping unflattening of disabled nodes. This is part of kernel
tinification efforts.- Final piece of removing storing the full path for every DT node.
The prerequisite conversion of printk's to use device_node format
specifier happened in 4.14.- Sync with current upstream dtc. This brings additional checks to
dtb compiling.- Binding doc tree wide removal of leading 0s from examples
- RTC binding documentation adding missing devices and some
consolidation of duplicated bindings- Vendor prefix documentation for nutsboard, Silicon Storage
Technology, shimafuji, Tecon Microprocessor Technologies, DH
electronics GmbH, Opal Kelly, and Next Thing"* tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (55 commits)
dt-bindings: usb: add #phy-cells to usb-nop-xceiv
dt-bindings: Remove leading zeros from bindings notation
kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
MIPS: dts: remove bogus bcm96358nb4ser.dtb from dtb-y entry
kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile
.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore
.gitignore: sort normal pattern rules alphabetically
dt-bindings: add vendor prefix for Next Thing Co.
scripts/dtc: Update to upstream version v1.4.5-6-gc1e55a5513e9
of: dynamic: fix memory leak related to properties of __of_node_dup
of: overlay: make pr_err() string unique
of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove
of: overlay: remove unneeded check for NULL kbasename()
of: overlay: remove a dependency on device node full_name
of: overlay: simplify applying symbols from an overlay
of: overlay: avoid race condition between applying multiple overlays
of: overlay: loosen overly strict phandle clash check
of: overlay: expand check of whether overlay changeset can be removed
of: overlay: detect cases where device tree may become corrupt
of: overlay: minor restructuring
...
14 Nov, 2017
1 commit
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Pull OpenRISC updates from Stafford Horne:
"The OpenRISC work is a bit more interesting this time, adding SMP
support and a few general cleanups.Small Things:
- Move OpenRISC docs into Documentation and clean them up
- Document previously undocumented devicetree bindings
- Update the or1ksim dts to use stdout-path
OpenRISC SMP support details:
- First the "use shadow registers" and "define CPU_BIG_ENDIAN as
true" get the architecture ready for SMP.- The "add 1 and 2 byte cmpxchg support" and "use qspinlocks and
qrwlocks" add the SMP locking infrastructure as needed. Using the
qspinlocks and qrwlocks as suggested by Peter Z while reviewing the
original spinlocks implementation.- The "support for ompic" adds a new irqchip device which is used for
IPI communication to support SMP.- The "initial SMP support" adds smp.c and makes changes to all of
the necessary data-structures to be per-cpu.The remaining patches are bug fixes and debug helpers which I wanted
to keep separate from the "initial SMP support" in order to allow them
to be reviewed on their own. This includes:- add cacheflush support to fix icache aliasing
- fix initial preempt state for secondary cpu tasks
- sleep instead of spin on secondary wait
- support framepointers and STACKTRACE_SUPPORT
- enable LOCKDEP_SUPPORT and irqflags tracing
- timer sync: Add tick timer sync logic
- fix possible deadlock in timer sync, pointed out by mips guys
Note: the irqchip patch was reviewed with Marc and we agreed to push
it together with these patches"* tag 'for-linus' of git://github.com/openrisc/linux:
openrisc: fix possible deadlock scenario during timer sync
openrisc: pass endianness info to sparse
openrisc: add tick timer multi-core sync logic
openrisc: enable LOCKDEP_SUPPORT and irqflags tracing
openrisc: support framepointers and STACKTRACE_SUPPORT
openrisc: add simple_smp dts and defconfig for simulators
openrisc: add cacheflush support to fix icache aliasing
openrisc: sleep instead of spin on secondary wait
openrisc: fix initial preempt state for secondary cpu tasks
openrisc: initial SMP support
irqchip: add initial support for ompic
dt-bindings: add openrisc to vendor prefixes list
openrisc: use qspinlocks and qrwlocks
openrisc: add 1 and 2 byte cmpxchg support
openrisc: use shadow registers to save regs on exception
dt-bindings: openrisc: Add OpenRISC platform SoC
Documentation: openrisc: Updates to README
Documentation: Move OpenRISC docs out of arch/
MAINTAINERS: Add OpenRISC pic maintainer
openrisc: dts: or1ksim: Add stdout-path
09 Nov, 2017
1 commit
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We need to add "clean-files" in Makfiles to clean up DT blobs, but we
often miss to do so.Since there are no source files that end with .dtb or .dtb.S, so we
can clean-up those files from the top-level Makefile.Signed-off-by: Masahiro Yamada
Acked-by: Arnd Bergmann
Signed-off-by: Rob Herring
03 Nov, 2017
1 commit
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Simple enough to be compatible with simulation environments,
such as verilated systems, QEMU and other targets supporting OpenRISC
SMP. This also supports our base FPGA SoC's if the cpu frequency is
upped to 50Mhz.Signed-off-by: Stefan Kristiansson
[shorne@gmail.com: Added defconfig]
Signed-off-by: Stafford Horne
02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
30 Oct, 2017
1 commit
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During reviews of the OpenRISC SMP patch series it was suggested to add
stdout-path to the SMP dts file. Add stdout-path to our other dts files
to be a good example.Cc: Geert Uytterhoeven
Signed-off-by: Stafford Horne
04 Dec, 2012
1 commit
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The current rules have the .dtb files build in a different directory
from the .dts files. This patch changes openrisc to use the generic dtb
rule which builds .dtb files in the same directory as the source .dts.This requires renaming arch/openrisc/boot/Makefile to
arch/openrisc/boot/dts/Makefile, and updating arch/openrisc/Makefile to
call the new Makefile.Cc: Jonas Bonn
Cc: linux@lists.openrisc.net
Signed-off-by: Stephen Warren
Signed-off-by: Rob Herring
15 Jan, 2012
1 commit
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This hooks dtc into Kbuild's dependency system.
Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
lack of this feature recently caused me to have very confusing "git
bisect" results.For ARM, it's obvious what to add to $(targets). I'm not familiar enough
with other architectures to know what to add there. Powerpc appears to
already add various .dtb files into $(targets), but the other archs may
need something added to $(targets) to work.Signed-off-by: Stephen Warren
Acked-by: Shawn Guo
[mmarek: Dropped arch/c6x part to avoid merging commits from the middle
of the merge window]
Signed-off-by: Michal Marek
23 Jul, 2011
2 commits
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Signed-off-by: Jonas Bonn
Reviewed-by: Arnd Bergmann -
The OpenRISC architecture uses the device tree infrastructure for the
platform description. This is currently limited to having a device tree
built into the kernel, but work is underway within the OpenRISC project
to define how this device tree blob should be passed into the kernel from
an external resource.Patch contains a single example DTS file to go with the defconfig for
or1ksim.Signed-off-by: Jonas Bonn
Cc: devicetree-discuss@lists.ozlabs.org
Reviewed-by: Arnd Bergmann
