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* Merge branch 'for-next/zynqmp'Sascha Hauer2021-07-181-0/+40
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| * Documentation: zynqmp: add some documentationMichael Tretter2021-06-251-0/+40
| | | | | | | | | | | | | | | | | | Add at least some information how Barebox can be used on the ZynqMP and what is required to create a bootable image. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Link: https://lore.barebox.org/20210624150054.1205422-8-m.tretter@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/usb-gadget'Sascha Hauer2021-07-182-23/+16
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| * | usbgadget: add support for USB mass storage gadgetAhmad Fatoum2021-06-251-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver is based on the f_mass_storage drivers in Linux v5.11 and U-Boot v2021.01. Unlike the U-Boot version, it runs asynchronously without blocking the bootloader from doing other tasks, like exporting other USB gadgets at the same time or enabling shell access. With pollers and workqueues, enabling this would need a large rework of the code to be completely callback based, whenever the original Linux code sleeps waiting for events. With the new bthread support, we can actually sleep and handover control to other bthreads until there is actual work to do. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210622082617.18011-9-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | Documentation: devel: background-execution: update bthread docsAhmad Fatoum2021-06-251-23/+11
| |/ | | | | | | | | | | | | | | | | | | | | Using bthreads throughout means we'll need finer grained locking across the code base, which is too big a commitment for now. Previous commit limited bthread_reschedule to only happen in command context, like how it is for workqueues. Adjust the docs appropriately. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210622082617.18011-7-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/rockchip'Sascha Hauer2021-07-181-0/+39
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| * | ARM: Rockchip: Add rk3568 evb board supportSascha Hauer2021-06-281-0/+39
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for the rk3568 evb board. Tested features so far are: - 1st stage booting - Network - SD card - eMMC The dts files are based on the ones posted on the mailing lists, they should be rebased on the upstream files once they show up in barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20210615141641.31577-11-s.hauer@pengutronix.de Link: https://lore.barebox.org/20210621092802.27275-11-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/riscv'Sascha Hauer2021-07-181-0/+37
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| * | RISC-V: StarFive: add board support for BeagleV StarlightAhmad Fatoum2021-06-241-0/+37
| |/ | | | | | | | | | | | | | | | | With the different drivers now in place, we have everything to start a barebox image. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210619045055.779-30-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: Add documentation for device tree overlaysSascha Hauer2021-06-281-0/+43
| | | | | | | | | | | | | | | | Document the recently gained device tree overlay features. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20210624085223.14616-18-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | doc: devicetree: Refer to internal device tree also as live treeSascha Hauer2021-06-281-1/+1
|/ | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20210624085223.14616-17-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: devel: porting: update after clk_hw syncAhmad Fatoum2021-06-211-1/+0
| | | | | | | | | | Clock code sync with Linux got way more straight forward, now that barebox knows about struct clk_hw. Remove the suggestion to replace clk_hw with clk when porting. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210621064646.19094-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/testing'Sascha Hauer2021-06-165-22/+103
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| * test: add emulate.pl, a runner for barebox on emulated targetsAhmad Fatoum2021-06-091-0/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This script is a wrapper around tuxmake, qemu and labgrid-pytest. It parses the same YAML files, labgrid-pytest uses and instructs tuxmake to build and collect the needed images. By default, it will start an interactive emulator session, but with --test, it can also run labgrid-pytest instead. The script has some knowledge of QEMU options to make common tasks like passing images straight-forward. Script is written with both manual use and CI in mind. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210604084704.17410-12-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * Documentation: boards: RISC-V: update TinyEMU supportAhmad Fatoum2021-06-093-10/+24
| | | | | | | | | | | | | | | | | | | | | | Adding the tinyemu files as separate files and including them has the nice benefit that temu users can just use these files directly instead of copy pasting. While at it, update the section as input, as support was added meanwhile. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210604084704.17410-7-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * MIPS: qemu-malta: generate swapped image as part of multi-image buildAhmad Fatoum2021-06-091-12/+4
| | | | | | | | | | | | | | | | | | | | | | | | Having to manually swap the words in the MIPS Malta image for QEMU little endian emulation is annoying. Have the multi-image build for Malta generate a second .swapped image that can be readily used if needed. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210604084704.17410-5-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/imx'Sascha Hauer2021-06-161-0/+10
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| * | ARM: protonic: add initial support for the Protonic PRT8MM family of boardsDavid Jander2021-05-311-0/+10
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | This board is a low-cost 7" touchscreen virtual terminal for agricultural applications. There is no upstream Linux DT yet, so we add a minimal DT for use with the bootloader in this patch. Signed-off-by: David Jander <david@protonic.nl> [lst: fixed and cleaned up for upstream] Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Link: https://lore.barebox.org/20210528133041.1109923-2-l.stach@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / Documentation: RISC-V: erizo: fix header levelAntony Pavlov2021-06-151-1/+1
|/ | | | | | | | | The "Running on DE0-Nano FPGA board" is a "Erizo" subsection not independent section. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Link: https://lore.barebox.org/20210614142753.86477-1-antonynpavlov@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: Update env sources documentationTrent Piepho2021-05-251-6/+10
| | | | | | | | | | | Add CONFIG_DEFAULT_ENVIRONMENT_PATH to the list in the proper place. Update the board env to follow the new pattern for naming and note that, unlike the other directories, one must add code to get this directory in the environment. Link: https://lore.barebox.org/20210519060134.2976676-1-tpiepho@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: kvx: Fix broken linkJules Maselbas2021-05-031-1/+1
| | | | | | | | The link to toolchain releases was missing a part Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu> Link: https://lore.barebox.org/20210417211419.26883-1-jmaselbas@kalray.eu Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: user: watchdog: sync with current stateAhmad Fatoum2021-05-031-4/+32
| | | | | | | | | Since most of the documentation was written, the watchdog framework has gained three more device parameters. Document them. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210426113408.24903-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/virtio'Sascha Hauer2021-04-152-3/+3
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| * Documentation: virtio: Fix virtio referenceAhmad Fatoum2021-04-132-2/+2
| | | | | | | | | | | | | | | | Sphinx complains, probably, because _virtio is used for footnote in the same document. Rename it to fix the reference. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * input: add virtio input driverAhmad Fatoum2021-04-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | We already support Linux event codes, because they are used in the device tree bindings for e.g. gpio-keys. Virtio input devices report events using the same codes, so a driver just has to shovel the codes from virtqueue into the input layer. Do so. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2021-04-153-156/+71
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| * | Documentation: Add qemu instructions for OpenRISCStafford Horne2021-04-131-0/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | Most developers have qemu and rather not download and install the or1ksim. Also, this adds details on how to get a openrisc toolchain. Signed-off-by: Stafford Horne <shorne@gmail.com> Link: https://lore.pengutronix.de/20210304210747.3679483-1-shorne@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | doc: fix note about disassembling PBLAhmad Fatoum2021-03-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | The described ``make`` incantations no longer work. Refer to the current names of the files instead. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | x86: drop legacy (PC BIOS) boot in favor of EFIAhmad Fatoum2021-03-251-153/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | | | The 16-bit port has experienced bitrot and failed to compile with more recent linkers for at least a year. Fixing the linker error is insufficient to restore a barebox that can boot to shell. This continued breakage likely means that there are no users interested in updating. As new x86 projects should be using MACH_EFI_GENERIC anyway, retire support for 16-bit legacy boot (MACH_X86_GENERIC). Acked-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: add barebox porter's guideAhmad Fatoum2021-04-133-0/+512
| | | | | | | | | | | | | | | | Make new porters' life easier by having a central place for porting advice and add some initial content there. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: reference reboot-mode DocumentationAhmad Fatoum2021-04-131-0/+1
| | | | | | | | | | | | | | No ToC is referencing the page. Fix this. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: reboot-mode: fix headingsAhmad Fatoum2021-04-131-4/+5
| | | | | | | | | | | | | | | | What was supposed to be subheadings of the Disambiguation headings weren't by mistake. Bump up the other headings to restore the balance. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: fix sucessfuly -> successfully typoVivien Didelot2021-04-131-1/+1
| | | | | | | | | | | | | | | | system-reset.rst was embedded a classic sucess -> success typo. Fix it. Signed-off-by: Vivien Didelot <vdidelot@pbsc.com> Link: https://lore.pengutronix.de/20210406150120.4194149-1-vivien.didelot@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: dlink-dir-320: update device linksAntony Pavlov2021-04-011-2/+2
| | | | | | | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Documentation: dlink-dir-320: update image file nameAntony Pavlov2021-04-011-2/+2
|/ | | | | | | | The commit 102676feb218ab59 ("MIPS: port all mach* to multiimage") changed D-Link DIR-320 image name so update it in documentation. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* RISC-V: add Qemu virt supportRouven Czerwinski2021-03-231-0/+59
| | | | | | | | | | | | | | | | The generic dt board added in a previous commit can be booted on RISC-V qemu -M virt. Add defconfigs for both 32- and 64-bit machines. We could in theory drop the mach directory altogether like it's done on arm64, but for now it's left in as it provides <mach/debug_ll.h>. It's expected that we can drop it in future in favor of generic earlycon support (which also wouldn't require manual adjustment of the shared entry point like with debug_ll). Signed-off-by: Rouven Czerwinski <r.czerwinksi@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* RISC-V: erizo: migrate to PBLAhmad Fatoum2021-03-231-5/+8
| | | | | | | | | | We now have everything in place to migrate erizo to PBL. As currently, this is the only board, we can drop all non-PBL support in the same go. Cc: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/virtio'Sascha Hauer2021-03-231-13/+17
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| * virtio: support virtio-based device drivers over PCIAhmad Fatoum2021-03-041-13/+17
| | | | | | | | | | | | | | | | | | This driver provides support for virtio based paravirtual device drivers over PCI. This is useful with Qemu for boards that barebox has PCI support for, e.g. MIPS Malta. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2021-03-231-2/+33
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| * | ARM: stm32mp: add support for STM32MP157-EV1 boardAhmad Fatoum2021-03-171-2/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The STM32MP157A-EV1 and STM32MP157C-EV1 Evaluation boards are the full-feature demonstration and development platforms for STMicroelectronics Arm®-based dual Cortex®-A7 32 bits and Cortex®-M4 32 bits MPUs in the STM32MP1 Series. Add support for running barebox as SSBL on either of them. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | | Merge branch 'for-next/bthreads'Sascha Hauer2021-03-231-4/+33
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| * | | common: introduce bthreads, co-operative barebox threadsAhmad Fatoum2021-03-221-4/+33
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the new setjmp/longjmp/initjmp support, we have all the architecture support in place to have suspendable green threads in barebox. These are expected to replace pollers and workqueues. For now we still have a differentiation between the main and secondary threads. The main thread is allowed I/O access unconditionally. If it's in a delay loop, a secondary thread running needs to be wary of not entering the same driver and doing hardware manipulation. We already have slices as mechanism to guard against this, but they aren't used as widely as needed. Preferably, in the end, threads will automatically yield until they can claim a resource (i.e. lock a mutex). Until we are there, take the same care when using bthreads as with pollers. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | | Merge branch 'for-next/arm-qemu-virt64'Sascha Hauer2021-03-231-1/+2
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| * | | ARM64: qemu-virt64: migrate to generic DT imageAhmad Fatoum2021-03-171-1/+2
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current qemu-virt64 barebox support doesn't look much like what's offered on physical boards. It's not relocatable, lacks PBL and doesn't use device tree. As qemu-system-aarch64 -M virt -kernel already supplies an external device tree, we could just replace all existing support with BOARD_ARM_GENERIC_DT, which builds a barebox image that reuses an externally passed device tree. The 32-bit ARM VIRT support has some board code for host name setting and overlay applying to handle environment and state on flash. We could do without that, given the new virtio-blk support, but the code is already there, so reuse it and drop all current virt64-specific board code. As the barebox ELF image resulting from the build can no longer be directly booted as before and only with -kernel, not -bios, rename the Kconfig symbol, so existing users can notice this during build. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / / Documentation: mips: fixup qemu-system-mipsel cmdlineAntony Pavlov2021-03-221-1/+1
|/ / | | | | | | | | | | | | | | Fix spelling mistake introduced in the commit 2ab6d2a76994 ("MIPS: qemu-malta_defconfig: enable VGA output"). Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/arch-remove'Sascha Hauer2021-03-011-1/+0
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| * | nios2: Remove architectureSascha Hauer2021-02-241-1/+0
| |/ | | | | | | | | | | | | | | barebox nios2 support was merged in 2011. It hasn't seen very much active development since then and appears to have no active users. Remove the architecture. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / Documentation: devicetree: include firmware in toctreeThorsten Scherer2021-02-241-0/+1
|/ | | | | | | | Fix Sphinx consistency warning. Fixes: fcdcb8177 ("documentation: devicetree: migrate remaining binding to reST") Signed-off-by: Thorsten Scherer <tsc@scherer.tk> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/virtio'Sascha Hauer2021-02-222-0/+83
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