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* pstore/doc: fix layoutJuergen Borleis2019-03-181-8/+8
| | | | | | | Emphasise keywords and paths. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* pstore: pass ramoops configuration to kernel via device treePhilipp Zabel2019-03-181-4/+6
| | | | | | | | | Instead of setting ramoops module parameters on the kernel command line, add a /reserved-memory/ramoops node to the device tree via of_fixup. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Documentation-added-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* pstore: add console supportPhilipp Zabel2019-03-181-0/+4
| | | | | | | | Add support for writing console messages to pstore. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Documentation-added-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* pstore/ram: Clarify resource reservation labelsKees Cook2019-03-181-25/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When ramoops reserved a memory region in the kernel, it had an unhelpful label of "persistent ram". When reading iomem, it would be repeated many times, did not hint that it was ramoops in particular, and didn't clarify very much about what each was used for: 0x4fdd4000 - 0x4fdf3fff (size 0x00020000) persistent ram 0x4fdf4000 - 0x4fe13fff (size 0x00020000) persistent ram ... 0x4ff74000 - 0x4ff93fff (size 0x00020000) persistent ram 0x4ff94000 - 0x4ffb3fff (size 0x00020000) persistent ram 0x4ffb4000 - 0x4ffd3fff (size 0x00020000) persistent ram Instead, this adds meaningful labels for how the various regions are being used: 0x4fdd4000 - 0x4fdf3fff (size 0x00020000) ramoops:dump(0/12) 0x4fdf4000 - 0x4fe13fff (size 0x00020000) ramoops:dump(1/12) ... 0x4ff74000 - 0x4ff93fff (size 0x00020000) ramoops:console 0x4ff94000 - 0x4ffb3fff (size 0x00020000) ramoops:ftrace 0x4ffb4000 - 0x4ffd3fff (size 0x00020000) ramoops:pmsg Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> [p.zabel@pengutronix.de: ported to Barebox from Linux commit 1227daa43bce] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/rpi'Sascha Hauer2019-03-071-0/+10
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| * ARM: rpi: save bootargs from VC FDT to vc.bootargsTomaz Solc2019-03-041-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When booting a Raspberry Pi, it is useful to extract bootargs from the device tree that was created by the VideoCore firmware. These bootargs contain for example settings for the framebuffer that the kernel needs to properly set the video output. This commit extracts the bootargs in the board initialization code and saves them to the vc.bootargs global variable. For example, a bootloader environment can then add the contents of this variable to linux.bootargs.vc, which then gets included into the final bootargs for the kernel using CONFIG_FLEXIBLE_BOOTARGS. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * ARM: rpi: save fdt that was passed from VideoCoreTomaz Solc2019-03-041-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Raspberry Pi, VideoCore firmware creates a device tree that contains information about peripherals that were initialized by VideoCore based on settings in config.txt. Normally this device tree is passed to the Linux kernel via a pointer in the r2 register. A bootloader needs to pass this device tree to the kernel, or some peripherals will not work correctly. Since the VideoCore device tree is not compatible with barebox, we can't just pass it to barebox_arm_entry() as the internal barebox device tree. This commit makes the prebootloader code copy the device tree from VideoCore into a scrap RAM area just above the area reserved for the bootloader. Board initialization code in the bootloader proper then copies it into a file /vc.dtb. The bootloader environment is then free to pass this file to the kernel at boot (e.g. via bootm -o). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/efi'Sascha Hauer2019-03-071-1/+34
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| * | Documentation: efi: provide (U)EFI watchdog documentationOleksij Rempel2019-02-181-1/+34
| |/ | | | | | | | | Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: imx8mq-evk: fix firmware pathChristian Hemp2019-02-271-1/+1
| | | | | | | | | | | | | | | | | | Since commit: "da985aac8 firmware: drop the imx subdir" the firmware is not longer placed in imx subdir. So the subdir can be removed from the documentation. Signed-off-by: Christian Hemp <christian.hemp@posteo.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: add retry handling to algorithm descriptionEnrico Jorns2019-02-181-0/+5
| | | | | | | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: add details about bootchooser.reset_attempts handlingEnrico Jorns2019-02-181-5/+7
| | | | | | | | | | | | | | | | For understanding and correctly using the algorith it is useful to know when the values are evaluated. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: be more explicit about when the bootchooser terminatesEnrico Jorns2019-02-181-0/+3
| | | | | | | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: note how to actually start the bootchooserEnrico Jorns2019-02-181-0/+11
| | | | | | | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: be more explicit about attempts reset on successful bootEnrico Jorns2019-02-181-9/+32
| | | | | | | | | | | | | | | | | | From the current description of how the bootchooser algorithm works it is not that easy to figure out how to actually use it in a full (redundancy) boot chain. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: be more explicit what bootchooser.state_prefix is forEnrico Jorns2019-02-181-2/+3
| | | | | | | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: explicitly note configuration vs. storage backendEnrico Jorns2019-02-181-0/+5
| | | | | | | | | | | | | | It is quite confusing for some users sometimes where to set what. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: bootchooser: fix typos etc.Enrico Jorns2019-02-181-5/+5
|/ | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/rpi'Sascha Hauer2019-02-131-1/+0
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| * doc: bcm283x: remove miniuart overlay instructionRouven Czerwinski2019-02-051-1/+0
| | | | | | | | | | | | | | | | Since we now use the miniuart on the raspberry pi 3, the miniuart overlay is no longer needed. Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2019-02-133-4/+5
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| * | state: Documentation: fix typoUlrich Ölmann2019-02-071-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Documentation: i.MX: Kindle 4/5: fix sphinx warningsRoland Hieber2019-01-211-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sphinx warns: Documentation/boards/imx/amazon-kindle-4-5.rst:39: WARNING: Enumerated list ends without a blank line; unexpected unindent. Documentation/boards/imx/amazon-kindle-4-5.rst:42: WARNING: Enumerated list ends without a blank line; unexpected unindent. Documentation/boards/imx/amazon-kindle-4-5.rst:45: WARNING: Enumerated list ends without a blank line; unexpected unindent. Solve this by fixing the list enumeration and adding blank lines. Signed-off-by: Roland Hieber <rhi@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Documentation: state: fix closing brace without opening braceRoland Hieber2019-01-211-1/+0
| |/ | | | | | | | | | | | | | | | | Also fix the resulting sphinx warning: Documentation/user/state.rst:650: WARNING: Explicit markup ends without a blank line; unexpected unindent. Signed-off-by: Roland Hieber <rhi@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: i.MX: Add support for ZII i.MX8MQ based devicesAndrey Smirnov2019-02-113-0/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the following ZII i.MX8MQ based boards: - ZII i.MX8MQ RMB3 - ZII i.MX8MQ Zest Most of the basic peripherals are supported by this patch. More advanced features such as PCIe, display support, etc, are planned to be added later. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: i.MX: Increase :maxdepth: for board documentationAndrey Smirnov2019-02-111-1/+1
| | | | | | | | | | | | | | | | A number of board documentation file have subsections. Increase :maxdepth:, so we'd get proper TOC and numbering. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | firmware: drop the imx subdirLucas Stach2019-02-011-2/+2
| | | | | | | | | | | | | | | | | | | | We don't intend to ship any files in this directory, so there is no risk of the directory getting too crowded over time. Drop the subdir as this makes it easier for a outer build system to drop all the needed firmwares into the correct directory. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: imx8mq-evk: add instructions for HDMITX firmwareLucas Stach2019-02-011-2/+12
| | | | | | | | | | Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: imx8mq-evk: point to current version of the firmwareLucas Stach2019-02-011-4/+4
|/ | | | | | | | There were some updates to the i.MX8MQ DDR training firmware, so better point to the current version. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/risc-V'Sascha Hauer2019-01-151-0/+91
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| * Documentation: add RISC-V docsAntony Pavlov2019-01-071-0/+91
| | | | | | | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/net'Sascha Hauer2019-01-151-2/+2
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| * | net: Allow hostnames for global.net.serverSascha Hauer2019-01-041-2/+2
| |/ | | | | | | | | | | | | Additional to IPv4 addresses add support for global.net.server being a hostname. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2019-01-1517-38/+376
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| * | doc: at91sam9263-ek: add notesSam Ravnborg2019-01-081-0/+122
| | | | | | | | | | | | | | | | | | | | | Add notes from working on bootstrap support Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | doc: add additional at91 boardsSam Ravnborg2019-01-086-0/+48
| | | | | | | | | | | | | | | | | | | | | Simple files that makes it simple to add further documentation later Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | doc: add at91 documentationSam Ravnborg2019-01-0810-0/+137
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add at91 specific documentation. Add files for the Atmel evaluations kits. This is mostly placeholders with some trivial information, but we now have files to add more information. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Documentation: i.MX: improve wording, add markup and missing articlesRoland Hieber2018-12-171-45/+57
| | | | | | | | | | | | | | | Signed-off-by: Roland Hieber <rhi@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Documentation: i.MX: Document how to use GPTAndrey Smirnov2018-12-101-0/+19
| |/ | | | | | | | | | | | | | | Document a way to avoid clashes between i.MX boot info/Barebox and GPT's Partition Entry Array. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / Documentation: imx8mq-evk: Pass the full path for file namesFabio Estevam2019-01-031-2/+2
|/ | | | | | | | Passing the full path of the referenced files make the text clearer. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* documentation: document eMMC boot{0,1}-partitions bindingAhmad Fatoum2018-12-061-0/+18
| | | | | | | | The described binding was implemented in commit 6e9a87b39 ("mci: Allow to partition eMMC boot partitions"). Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* usbgadget: autostart: add DFU supportLadislav Michl2018-10-291-0/+2
| | | | | | | | | | | Use global variable dfu_function to autostart DFU. As similar code is used to start multifunction gadget using command, move common code to common/usbgadget.c and consolidate it. It turned out that '-s' option of usbgadget command does nothing, so remove its help text and make it function as '-a'. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: USB gadget: document usbgadget.fastboot_bbu variableLadislav Michl2018-10-291-0/+2
| | | | | Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mxs'Sascha Hauer2018-09-111-44/+53
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| * Documentation: MXS: general update and improvementsRoland Hieber2018-08-141-44/+53
| | | | | | | | | | | | | | | | | | | | Go more into detail about the relationship of the prepare stage and the bootloader image, and about the generated images. Also don't use mxs-usb-loader anymore since it has been removed. Fixes: 3ca576cc4a4236a2556ab17 "scripts: imx/mxs remove mxs-usb-loader" Signed-off-by: Roland Hieber <r.hieber@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: i.MX: update Kindle 4/5 board documentationRoland Hieber2018-09-071-40/+41
| | | | | | | | | | | | | | | | | | | | | | - complete the instructions to get into USB bootloader mode - put hardware info to the top, and split into sections - add info about the new defconfig - remove build size hints, which have been applied to the defconfig - transform literal blocks into code blocks Signed-off-by: Roland Hieber <rohieb@rohieb.name> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Revert "i.MX: Add provisions to boot from IRAM"Andrey Smirnov2018-08-311-27/+0
|/ | | | | | | | | | | | | | | | | | | After being introduced 3 years ago this feature ended up being "obsoleted by events" and project it was supposed to be a part of winded down. Revert this feature due to: a) Lack of users b) Existence of better way to make barebox load via SRAM as intermediary step that does not require two separate images to be built (.imx-sram-img) This reverts commit 903c9477a08c5655161779ef4144886928ecc7d1. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/state'Sascha Hauer2018-08-131-43/+43
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| * Documentation: state: add unit name to state variable in DTUlrich Ölmann2018-07-131-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Starting with DT compiler version 1.4.6 (included since v2018.07.0) one gets warnings <node>: node has a reg or ranges property, but no unit name if the first address field of a reg-property is not taken as the unit name for its parent node. Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * Documentation: state: fix typosUlrich Ölmann2018-07-131-31/+31
| | | | | | | | | | Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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