Commit Graph

24 Commits

Author SHA1 Message Date
Rob Herring
abe60a3a7a ARM: dts: Kill off skeleton{64}.dtsi
Remove the usage of skeleton.dtsi in the remaining dts files. It was
deprecated since commit 9c0da3cc61 ("ARM: dts: explicitly mark
skeleton.dtsi as deprecated"). This will make adding a unit-address to
memory nodes easier.

The main tricky part to removing skeleton.dtsi is we could end up with
no /memory node at all when a bootloader depends on one being present. I
hacked up dtc to check for this condition.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-01-30 17:30:31 +01:00
Rob Herring
2f967f9e9f ARM: dts: ste: Fix SPI controller node names
SPI controller nodes should be named 'spi' rather than 'ssp'. Fixing the
name enables dtc SPI bus checks.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-20 14:59:56 -07:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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 <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Masahiro Yamada
2ef7d5f342 ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"
The compatible string "simple-bus" is well defined in ePAPR, while
I see no documentation for the "arm,amba-bus" arnywhere in ePAPR or
Documentation/devicetree/.

DT is also used by other projects than Linux kernel.  It is not a
good idea to rely on such an unofficial binding.

This commit
  - replaces "arm,amba-bus" with "simple-bus"
  - drops "arm,amba-bus" where it is used along with "simple-bus"

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 17:40:34 -08:00
Javier Martinez Canillas
125fd67753 ARM: u300: remove regulator-compatible usage
The regulator-compatible property from the regulator DT binding was
deprecated and the correct approach is to use the node's name.

This patch has no functional changes since the values of the node's
name and the regulator-compatible match for all the regulators.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-11-17 14:53:12 +01:00
Ulf Hansson
2071f852bf ARM: u300: Convert to the common mmc DT bindings for highspeed mode
The mmci host driver supports the common mmc DT parser, which enables
us to use the use common names instead.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-12 12:52:41 +02:00
Linus Walleij
dfc9832ca3 ARM: u300: switch SSP/SPI clock name to "SSPCLK"
As noted in recent discussions the name of the core clock for
the PL022 derived SPI blocks is erroneously named in the
U300 device tree. The kernel doesn't currently use the name,
but may do so soon so let use rename all these clocks in
accordance with the name given in the PL022 TRM (ARM DDI 0194G).

Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-26 13:36:01 +01:00
Lee Jones
8ddd0f6fa6 ARM: u300: Remove '0x's from U300 DTS file
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
2013-11-26 21:00:21 +01:00
Linus Walleij
7fca1f20c0 ARM: u300: switch to using syscon regmap for board
This switches the code using a local remapping of the
system controller to enable the U300 board to be
self-powered over to making the U300-specific syscon
compatible with the MFD generic syscon driver, selecting
the generic syscon driver, and augmenting the board
power code to pick the regmap and manipulate the syscon
from the regmap side of things.

Cc: Dong Aisheng <dong.aisheng@linaro.org>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:39 +02:00
Linus Walleij
85fb28bed8 ARM: u300: convert MMC/SD clock to device tree
This converts the last of the U300 clocks to being probed from
the device tree.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:37 +02:00
Linus Walleij
bba5f2cc2f ARM: u300: move the gated system controller clocks to DT
This moves the slow, fast, AHB bridge and "rest" clocks on
the U300 system controller over to registration from the
device tree.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:37 +02:00
Linus Walleij
14c2607144 clk: move the U300 fixed and fixed-factor to DT
This converts the fixed and fixed-factor clocks in the U300
platform to register themselves from the device tree.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:36 +02:00
Linus Walleij
cf0ce095c9 ARM: u300: add syscon node
This adds a device tree node for the U300 system controller
and remaps this dynamically instead of using hard-coded
virtual addresses. The board power set-up code is altered
to fetch a reference to the syscon using ampersand <&syscon>
notation. This way of passing a pointer to the syscon will
also be used by the clocks.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:35 +02:00
Linus Walleij
d134636f37 ARM: u300: add FSMC flash into the device tree
This registers the U300 FSMC flash controller from the
device tree, and defines the three partitions. Skip the
BBT scan as in the current platform data.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:29 +02:00
Linus Walleij
20d4af6830 ARM: u300: probe the U300 dummy-spichip from device tree
This probes the U300 dummy-spichip from the device tree
and adds the apropriate node to the tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:29 +02:00
Linus Walleij
cf4af8670b ARM: u300: add SPI PL022 to the device tree
This registers the PL022 PrimeCell from the U300 device
tree. We make a new copy of the platform data for the
device tree boot path, as the old platform data is in an
older file which will be going away.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:28 +02:00
Linus Walleij
39738cc96b ARM: u300: add the COH 901 318 DMAC to device tree
This adds the COH 901 318 DMA controller to the U300
device tree. All devices now converted to device tree
so far will start to find their DMA channels.

Note that the U300 is not yet using the device tree
to obtain DMA channels, but this is a first step.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:28 +02:00
Linus Walleij
efb9bc2ea0 ARM: u300: augment device tree with DMA channels
This adds DMA channel assignments to the MMC/SD-controller
and the two UARTs already in the U300 device tree, as we
have now defined a way to obtain DMA channels from the
device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:27 +02:00
Linus Walleij
ba078d1bd4 ARM: u300: enable MMC/SD card from device tree
This adds support for the U300 MMC/SD card slot from the device
tree boot. No other changes needed.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:26 +02:00
Linus Walleij
ecf5b39a8b ARM: u300: support regulators in the device tree
Now that we have enabled board power and the AB3100 regulators,
put the regulator data into the device tree and enable it so
we can start to tie regulators to devices. To begin with we're
only supplying the power to the board itself.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:26 +02:00
Linus Walleij
ae87bb8ef7 ARM: u300: add RTC to device tree
This adds the COH 901 331 RTC to the U300 device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:25 +02:00
Linus Walleij
63a62ec09d ARM: u300: add the COH 901 327 watchdog to device tree
This adds the COH 901 327 watchdog to the U300 device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-31 11:25:53 +02:00
Linus Walleij
c023b8b295 ARM: u300: register I2C bus drivers from device tree
This adds the two I2C busses to the device tree so these
probe properly.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-31 11:25:52 +02:00
Linus Walleij
978577ea21 ARM: u300: basic device tree support
This register the most basic peripherals and makes the
U300 boot to prompt from a device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-31 11:25:51 +02:00