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2019-08-15ARM: dts: bcm283x: Enable HDMI at board levelStefan Wahren1-0/+2
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>
2019-08-12ARM: dts: bcm283x: Define memory at board levelStefan Wahren1-0/+5
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>
2019-08-12ARM: dts: bcm283x: Define MMC interfaces at board levelStefan Wahren1-0/+7
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>
2019-02-01ARM: dts: bcm2835: Fix labels for GPIO 0,1Stefan Wahren1-2/+2
According to the schematics for all RPis with a 40 pin header, the GPIOs 0 and 1 are labeled as ID_SD and ID_SC. In order to clarify that is a I2C bus, append the third letter. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2018-04-23ARM: dts: bcm283x: Fix PWM pin assignmentStefan Wahren1-0/+6
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>
2017-12-08ARM: dts: bcm283x: Use GPIO polarity defines consistentlyStefan Wahren1-2/+2
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>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
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>
2017-08-02ARM: bcm283x: Define UART pinmuxing on board levelStefan Wahren1-0/+6
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>
2016-11-16ARM: bcm2835: Fix names for the Raspberry Pi GPIO linesStefan Wahren1-1/+1
There are some differences between the schematics and the official firmware DTS [1]. So based on these additional information the following has been changed: * use consistent "CAM_GPIO1" for camera LED * use consistent "CAM_GPIO0" for camera shutdown * add "USB_LIMIT" for USB current limit (0=600mA, 1=1200mA) [1] - https://github.com/raspberrypi/firmware/blob/master/extra/dt-blob.dts Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2016-11-11ARM: bcm2835: Add names for the Raspberry Pi GPIO linesLinus Walleij1-0/+66
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>
2016-10-17ARM: dts: bcm283x: drop alt3 from &gpioGerd Hoffmann1-1/+1
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>
2016-08-24ARM: dts: bcm283x: Add dtsi for USB host modeStefan Wahren1-0/+1
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>
2016-05-31ARM: bcm2835: dt: Add the ethernet to the device treesLubomir Rintel1-0/+1
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>
2016-04-19ARM: bcm2835: Add VC4 to the device tree.Eric Anholt1-0/+4
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>
2015-12-31ARM: bcm2835: Move the CPU/peripheral include out of common RPi DT.Eric Anholt1-0/+1
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>
2015-05-14ARM: bcm2835: dt: Use pinctrl headerStefan Wahren1-2/+2
This patch converts all bcm2835 dts and dtsi files to use the pinctrl header file. Reviewed-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-20ARM: bcm2835: Add device tree for Raspberry Pi model B+Matthias Klein1-0/+30
The model B and B+ differ in the GPIO lines for ACT and PWR leds, and the I2S interface. Signed-off-by: Matthias Klein <matthias.klein@linux.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Lee Jones <lee@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>