Commit graph

11 commits

Author SHA1 Message Date
Angelo Dureghello
ef09b537c5 m68k: m5441x: remove erroneous clock disable
Remove erroneous esdhc clock disable.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2022-03-07 14:51:12 +10:00
Angelo Dureghello
35a9f9363a m68k: m5441x: add flexcan support
Add flexcan support.

Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>

Made the flexcan resource inclusion conditional based on the enablement
of the flexcan driver. This commit is no longer dependant on the
presence of the updated driver in mainline.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2021-08-23 08:40:04 +10:00
Arnd Bergmann
007f84ede6 m68k: coldfire: remove private clk_get/clk_put
Only three SoCs remain that use the custom clk_get/clk_put.
Move these over to clkdev_lookup tables as well. As before,
treat the "sys.0" and "pll.0" clocks as system-wide clocks,
and all the other ones as device specific.

The "name" field in 'struct clock' is now unused, so rename
that as well as a cleanup and to reduce the object code size.
The DEFINE_CLK macro could be changed the same way, but it
is less churn to just leave those in place, that can be
done as a follow-up later if someone is interested.

Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-06-08 17:00:09 +02:00
Angelo Dureghello
91132078a3 m68k: coldfire/clk.c: move m5441x specific code
Moving specific m5441x clk-related code in more appropriate location,
since breaking compilation for other targets.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Link: https://lore.kernel.org/r/20200525102324.2723438-1-angelo.dureghello@timesys.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-05-28 11:22:16 +02:00
Angelo Dureghello
991f5c4dd2 m68k: mcf5441x: add support for esdhc mmc controller
Add support for sdhci-edshc mmc controller.

Signed-off-by: Angelo Dureghello <angelo.dureghello@timesys.com>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Link: https://lore.kernel.org/r/20200518191742.1251440-1-angelo.dureghello@timesys.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-05-28 11:22:15 +02:00
Angelo Dureghello
d7e9d01ac2 m68k: add ColdFire mcf5441x eDMA platform support
This patch adds support for ColdFire eDMA platform driver.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2019-02-25 11:04:05 +10:00
Angelo Dureghello
08fe92e205 m68k: coldfire: add dspi0 module support
This patch adds initial module base address and irq for dspi0.
It also defines the dspi0 clock to be used by the Freescale driver.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2017-11-07 13:27:32 +10:00
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
Alexandre Belloni
8a1943492b m68knommu: remove dead code
As CONFIG_RTC_DRV_M5441x doesn't exist because the driver never made it
upstream, there is no device to register. Remove code that is never
compiled and init_BSP() as it doesn't do anything.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2017-08-28 10:40:30 +10:00
Steven King
2d24b532f9 m68knommu: platform support for i2c devices on ColdFire SoC
These changes based on work by Steven King <sfking@fdwdc.com> to support
the i2c hardware modules on ColdFire SoC family devices.

This is the per SoC hardware support. Contains a common platform device
setup. Each of the SoC family members tends to have some minor local
setup required to initialize the module. But all ColdFire family members
use the same i2c hardware module.

This i2c hardware module is the same as used in the Freescale iMX ARM
based family of SoC devices. Steven's original patches were based on using
a new and different i2c-coldfire.c driver. But this is not neccessary as
we can use the existing Linux i2c-imx.c driver with no change required to
it. And this patch is now based on using the existing i2c-imx driver.

This patch only contains the ColdFire platform changes.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Tested-by: Angelo Dureghello <angelo@sysam.it>
2016-12-05 08:53:27 +10:00
Greg Ungerer
f86b9e0383 m68k: move coldfire platform code
Move the m68k ColdFire platform support code directory to be with the
existing m68k platforms. Although the ColdFire is not a platform as such,
we have always kept all its support together. No reason to change that
as this time.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-09-29 09:18:34 +10:00
Renamed from arch/m68k/platform/coldfire/m5441x.c (Browse further)