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The usage of the label property for gpio-leds has been deprecated
a long time ago. In bcm2835-rpi.dtsi the ACT LED uses such a label
and derive it to almost every Raspberry Pi board. Since we cannot break
userspace interface this property must be kept. But we can move the
ACT LED into a separate dtsi and include them from the board files.
This change have two benefits:
- with both new refs it's now clear the LED part is included from a dtsi
- new boards do not include the deprecated stuff automatically
Reported-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20221110173105.6633-3-stefan.wahren@i2se.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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According to the commit log of the commit 3ac395a5b3f3 ("ARM: dts:
bcm283x: Use firmware PM driver for V3D"), the initial intent behind the
bcm2835-rpi-common DTSI was to share data between the RaspberryPies
based on the BCM2835, 36 and 37.
However, it was included by these SoCs' main DTSI. This is creating an
improper layering.
On top of that, bcm2835.dtsi is being included by bcm2711.dtsi, which
means that, even though the bcm2835-rpi-common DTSI wasn't actually
meant to contain data for the BCM2711, it actually leaks into the
BCM2711 DTSI.
In order to remove both issues, let's remove the include of
bcm2835-rpi-common.dtsi from bcm283{5-7}.dtsi and put them into the
bcm283{6,7}-rpi.dtsi.
BCM2835 has to be handled with special care due to the fact that
bcm2835.dtsi is being included by bcm2711.dtsi. Thus, we chose to
include bcm2835-rpi-common.dtsi directly into the board DTS. This will
be more error-prone, but given that it's a fairly old SoC by now, the
chance that we will get more BCM2835 boards is fairly low.
BCM2711 isn't modified since the content of bcm2835-rpi-common.dtsi was
only a power-domain for the v3d that was overridden anyway.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20221026-rpi-display-fw-clk-v1-1-5c29b7a3d8b0@cerno.tech
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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The convention to name not connected GPIOs with NC has never been
adapted. Also newer Raspberry Pi boards like RPi 4 never did. So fix
this inconsistency by removing all of the NC names.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Fix the node names for the GPIO LEDs to conform to the standard node
name led-..
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1622981777-5023-6-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
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There might be headless setups of the Compute Module without HDMI,
so better enable HDMI at board level. Btw this allows moving HDMI
base definition into upcoming bcm2835-common.dtsi.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
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Now with the varity of several RPi boards, the memory should be defined
at board level. This step gives us the chance to fix the memory size
of the RPi 1 B+, Zero (incl. W) and Compute Module 1.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Eric Anholt <eric@anholt.net>
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Starting with RPi 4 this is the first board, which doesn't use sdhost
as default SD interface. So the MMC interfaces should be defined finally at
board level. Since all boards using sdhci already does this, we can drop the
pinctrl part from bcm2835-rpi.dtsi.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Eric Anholt <eric@anholt.net>
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Raspberry pi board model B revison 2 have the hot plug detector gpio
active high (and not low as it was in the dts).
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Fixes: 49ac67e0c39c ("ARM: bcm2835: Add VC4 to the device tree.")
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
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All RPi 1 and 2 boards used the PWM (audio out) on pin 40 and 45.
So it was easy to define them in bcm2835-rpi.dtsi. Starting with RPi 3
this wont work anymore, because it uses pin 40 and 41. Furthermore the
Zero variants doesn't have audio out.
This patch fixes this pin conflict by moving the PWM node to the board-level.
Change summary:
RPi 3 B: PWM1 45 -> 41
Zero, Zero W: PWM disabled
all other: no functional change
Reported-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Currently most of the Raspberry Pi DTS have a mixture of magic
numbers and the proper GPIO polarity defines. So use the latter
one consistently.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
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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 <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>
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Until RPI 3 and Zero W the pl011 (uart0) was always on pin 14/15. So in
order to take care of them and other boards in the future,
we need to define UART pinmuxing on board level.
This work based on Eric Anholt's patch "ARM: bcm2385: Don't force pl011
onto pins 14/15." and Fabian Vogt's patch "ARM64: dts: bcm2837: assign
uart0 to BT and uart1 to pin headers".
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
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The idea is to give useful names to GPIO lines that an implementer
will be using from userspace, e.g. for maker type projects. These are
user-visible using tools/gpio/lsgpio.c
v2: Major rewrite by anholt: Flatten each GPIO line to a line in the
file for better diffing, prefix all expansion header pins with
"P<number>" or "P5HEADER_P<number>" and drop the mostly-unused
GPIO_GEN<smallnumber> names in favor of GPIO<socgpionumber>, fix
extra '[]' on a couple of lines, fix locations of SD_CARD_DETECT,
CAM_GPIO and STATUS_LED, fix HDMI_HPD polarities, rewrite A+ using
unreleased schematics.
v3: More changes by anholt: Drop P<number> / P5HEADER<number>
prefixes. I had been skeptical about adding them, and was
convinced to drop them by Gottfried (who probably has more
experience with GPIOs in educational contexts than the rest of
us). Also drop [] brackets for "is pinmuxed", which didn't seem
to clarify, and were ambiguous for things like the SPI_*-labeled
pins which may or may not actually be pinmuxed to SPI.
v4: Rename B+'s SDA0/SCL0 to match the other boards, despite the
naming on its schematic.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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As the alt3 group has no pins left drop it from &gpio.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
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In case dr_mode isn't passed via DT, the dwc2 defaults to OTG mode.
But all Raspberry Pi boards here are designed only for host mode.
So fix this issue by providing a dtsi file which set the dr_mode
to host.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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The hub and the ethernet in its port 1 are hardwired on the board.
Compared to the adapters that can be plugged into the USB ports, this
one has no serial EEPROM to store its MAC. Nevertheless, the Raspberry Pi
has the MAC address for this adapter in its ROM, accessible from its
firmware.
U-Boot can read out the address and set the local-mac-address property of the
node with "ethernet" alias. Let's add the node so that U-Boot can do its
business.
Model B rev2 and Model B+ entries were verified by me, the hierarchy and
pid/vid pair for the Version 2 was provided by Peter Chen. Original
Model B is a blind shot, though very likely correct.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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VC4 is the GPU (display and 3D) present on the 283x.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
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For Raspberry Pi 2, we want to use the same general pin assignment
bits, but need to use bcm2836.dtsi for the CPU instead.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This one has an extra P5 header (unpopulated) with I2S.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Eric Anholt <eric@anholt.net>
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