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* Merge branch 'for-next/rpi4'Sascha Hauer2022-06-291-0/+10
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| * ARM: rpi: add Raspberry Pi 3 64-bit build supportAhmad Fatoum2022-06-171-0/+6
| | | | | | | | | | | | | | | | | | | | | | Have the subarch select the needed symbols to display a 32-bit/64-bit menu and hide the boards that aren't capable of 64-bit when CONFIG_64BIT=y. Building for 64-bit throws some warning about mismatched type sizes, so fix those as well. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220609055922.667016-14-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * ARM: rpi: add generic Raspberry Pi imageAhmad Fatoum2022-06-171-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new image that can be booted on all supported boards. This work by including DTs for all enabled boards in config and then consulting the mailbox interface at runtime to deduce which DT to pass to barebox proper. An alternative would have been to use the existing barebox-dt-2nd.img with a VideoCore-supplied device tree, but that has the drawback of requiring barebox to observe the same bindings as the kernel that's booted later. This approach makes migration straight-forward, because no difference in VideoCore configuration is required. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220609055922.667016-8-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/rockchip'Sascha Hauer2022-06-291-0/+7
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| * | arm: rockchip: add support for the radxa rock3 boardMichael Riesch2022-06-081-0/+7
| |/ | | | | | | | | | | | | | | | | Add basic support for the Radxa ROCK3 Model A board (featuring the Rockchip RK3568 SoC). Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Link: https://lore.barebox.org/20220531162624.245664-4-michael.riesch@wolfvision.net Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / ARM: clps711x: Switch to devicetree usageAlexander Shiyan2022-06-102-0/+9
|/ | | | | | | | | | This is a complex patch that switches the ARM CLPS711X architecture to work with the device tree. Includes changes to board initialization and any architecture drivers used. Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20220524060411.7754-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2022-05-191-0/+8
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| * arm: boards: Add support for MYIR MYD-AM335X Development BoardAlexander Shiyan2022-04-291-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | The MYD-AM335X Development Board designed by MYIR is a high-performance ARM Evaluation Module (EVM) using the MYC-AM335X CPU module as the core controller board. It is based on up to 1GHz Texas Instruments (TI) Sitara AM335x family of ARM Cortex-A8 Microprocessors (MPUs) that deliver high DMIPs at a low cost while also delivering optional 3D graphics acceleration and key peripherals. Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20220426070440.12471-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: CCMX51: Add support for 16-bit memory module variantsAlexander Shiyan2022-04-201-4/+6
| | | | | | | | | | | | | | | | | | Modules can have memory chips with a bus width of 16 bits. Let's separate the binaries for initializing different types. Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20220419072123.28590-3-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: webasto-marvel: share the run-time setup with the ccbv2 variantJuergen Borleis2022-03-281-0/+2
|/ | | | | | Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Link: https://lore.barebox.org/20220321140856.59479-3-jbe@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: stm32: add support for PHYTEC phyCORE stm32mp1Steffen Trumtrar2022-03-081-0/+2
| | | | | | | | | | | | Import DT[1] and add the boilerplate to have barebox generate a SSBL for the board. [1]: git://git.phytec.de/tf-a-stm32mp Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220302160242.2997946-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: stm32mp: add board support for STM32MP135F-DKAhmad Fatoum2022-03-081-0/+1
| | | | | | | | | | | | | | We already have the needed drivers in place to support the upcoming STM32MP131. Linux already has a basic DT for the DK board. Add a barebox board that leverages it. To try it out modify the existing FIP with: fiptool update --nt-fw build/images/barebox-stm32mp-generic-bl33.img \ --hw-config build/arch/arm/dts/stm32mp135f-dk.dtb \ mmcblk0p3 Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220221103625.3728055-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: stm32mp: build extra barebox-stm32mp-generic-bl33.imgAhmad Fatoum2022-02-231-0/+5
| | | | | | | | | | | | | barebox-dt-2nd.img expects being loaded at an offset, so the stack can grow down from entry point. The STM32MP TF-A default is to not have an offset. Avoid this issue by having a stm32mp specific entry point that sets up a 64 byte stack after end of barebox. As it's stm32mp-specific anyway, we can skip the early FDT parsing and ask the SDRAM controller about RAM size. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220220124736.3052502-8-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: stm32mp: change stm32image extension to .stm32Ahmad Fatoum2022-02-231-4/+7
| | | | | | | | | | | | | | The .img extension for stm32mp1 images is unfortunate. The format is deprecated and its header makes it not directly executable and thus not suitable as-is for use in a FIP image where the BL33 is run from offset 0. To make existence of the STM32 header evident, rename the extension from .img to .stm32. As it's still supported by TF-A, have symlinks, so user build script can use the old names for now. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220220124736.3052502-5-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: stm32mp: simplify with build_stm32mp_image macroAhmad Fatoum2022-02-231-29/+20
| | | | | | | | | Reduce duplication by adding a common macro to get the four lines of boilerplate down to a single line. No functional change. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220220124736.3052502-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: imx: add support for TQMa6UL SoM on MBa6ulxlRouven Czerwinski2022-02-161-0/+2
| | | | | | | | | | | Add support for a TQMA6UL2L SoM on top of a MBa6ulxl baseboard. The imxcfg header is for the LGA variant, the downstream U-Boot has an ifdef for another "standard" variant, however this is not included here since I don't have hardware to test. Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Link: https://lore.barebox.org/20220211100224.2395887-1-r.czerwinski@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ARM: Rockchip: Add rk3568 BananaPi R2 Pro board supportFrank Wunderlich2022-02-111-0/+7
| | | | | | | | | | | | | | | | | | This adds support for the BananaPi R2 Pro board. It is basicly a copy of rk3568 evb board but with slightly modified DTS. Added GPIO-Leds to dts and modified the hw-detection a bit. Tested features so far are: - 1st stage booting - Network - SD card and Emmc - usb (1.1 and 3 work, usb2 not working) - power LED (green) Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Link: https://lore.barebox.org/20220211091354.11573-1-linux@fw-web.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* images: add SPDX-License-IdentifiersAhmad Fatoum2022-01-0521-1/+30
| | | | | | | | | They have no explicit license and thus have the project's license: GPL-2.0-only. Record this. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-5-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for .gitignoreAhmad Fatoum2022-01-051-0/+2
| | | | | | | | | Makes the files not appear when searching for files that lack SPDX-License-Identifier. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for Kbuild/KconfigAhmad Fatoum2022-01-051-0/+1
| | | | | | | | | | | | | | | To verify only Kconfig/Makefile is touched: git show --numstat --format=oneline HEAD | grep -v 'Kconfig\|Makefile' will print only arch/powerpc/Kbuild. To verify nothing unexpected is added: git show -U0 | grep '^-[^-]\|^+[^+]' | sort -u Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/rockchip'Sascha Hauer2021-12-151-0/+7
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| * arm: rockchip: add support for the quartz64 boardMichael Riesch2021-11-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | The Pine64 Quartz64 board features the Rockchip RK3566, a reduced but largely identical version of the RK3568. Two models (A and B) of the Quartz64 board are envisaged, where this patch targets the already available model A. Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | arm: boards: Add support for PRTT1x STM32MP151 based boardsDavid Jander2021-11-221-0/+9
|/ | | | | | | | | | | | | | - PRTT1A is a very simple 10Base-T1L Ethernet to 0-10V output converter module. - PRTT1S is a CO2- and RH measurement module with 10Base-T1L and PoDL power sink. - PRTT1C is a "white box switch" device, meant to control the other members of the PRTT1L family of devices, connected via 10Base-T1L and PoDL power. Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20211118134125.408959-1-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/zynqmp'Sascha Hauer2021-10-071-0/+4
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| * arm: zynqmp: add support for xilinx zcu106 boardMichael Riesch2021-10-041-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Add support for the Xilinx Zynq UltraScale+ MPSoC ZCU106 evaluation board. The changes are derived from the ZCU104 board support by applying s/104/106/g (more or less). Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> Link: https://lore.barebox.org/20210913121350.9307-2-michael.riesch@wolfvision.net Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/riscv'Sascha Hauer2021-10-071-0/+4
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| * | RISC-V: add LiteX SoC and linux-on-litex-vexriscv supportAntony Pavlov2021-10-071-0/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | LiteX is a Migen-based System on Chip, supporting softcore VexRiscv CPU, a 32-bits Linux Capable RISC-V CPU. See https://github.com/enjoy-digital/litex and https://github.com/litex-hub/linux-on-litex-vexriscv for details. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Acked-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210817101104.114945-8-antonynpavlov@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/protonic'Sascha Hauer2021-10-071-0/+2
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| * | ARM: boards: protonic-imx6: Add support for jozacp boardRobin van der Gracht2021-10-041-0/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | The jozacp is an industrial imx6ull based board with ethernet, wifi and zigbee. Note: this patch includes WIP version of the devicetree: arch/arm/dts/imx6ull-jozacp.dtsi. This devicetree will be reworked, mainlined to the kernel and at the end replaced with the kernel mainline version. Signed-off-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20210825125430.26901-5-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/imx'Sascha Hauer2021-10-071-0/+6
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| * | ARM: i.MX8MN: add i.MX8MN-EVK supportAhmad Fatoum2021-10-051-0/+6
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With driver support in place, we can now build and run barebox in the i.MX8MN. Following tested working: - Setting up DDR4 SDRAM - Booting from SD-Card - Booting from eMMC - Updating barebox in SD-Card/eMMC boot partition - USB Fastboot, ACM gadgets - UART - Early I2C with bd71837 - Ethernet - Loading and communicating with TF-A The resulting image supports both DDR4 and LPDDR4. They use different PMICs, so probing the i2c addresses of them indicates what DRAM type to setup. I have only tested this on a DDR4 EVK, but the LPDDR4 code is equivalent to what's already used in barebox with i.MX8M Mini and Plus, so it should work(tm). Notably missing: - boot from USB SDP doesn't work. early debug_ll doesn't indicate that barebox PBL was actually entered. This can follow later though. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20211001100949.6891-9-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / ARM: AT91: migrate sama5d3-xplained to DTAhmad Fatoum2021-10-011-0/+9
|/ | | | | | | | | | | | | | | | | | | | We have one other DT-enabled SAMA5D3 board already: microchip-ksz8477-evb, which is basically a sama5d3 xplained in different form factor and with a switch. Mimic what we do there to get rid of the sama5d3 board code. Unlike the microchip-ksz9477-evb, the barebox support for this board includes NAND, which is not yet up to date with respect to DT: - SMC for NAND configuration has no DT driver. Instead the board driver create this device - We don't support the newer NAND DT bindings (EBI). The device trees fix this up, so barebox sees the old bindings with the upstream partition layout. In future, this could be fixed. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210922065000.20970-6-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/rockchip'Sascha Hauer2021-07-181-0/+10
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| * ARM: Rockchip: Add rk3568 evb board supportSascha Hauer2021-06-281-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | RISC-V: StarFive: add board support for BeagleV StarlightAhmad Fatoum2021-06-241-0/+4
|/ | | | | | | | | 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>
* Merge branch 'for-next/testing'Sascha Hauer2021-06-163-2/+16
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| * MIPS: qemu-malta: generate swapped image as part of multi-image buildAhmad Fatoum2021-06-093-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * kbuild: add install targetAhmad Fatoum2021-06-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | For CI, it would be useful to have the barebox build install the artifacts into a directory. Add an install target that does this. Example usage: make install INSTALL_PATH=install/ Unlike Linux, we don't set INSTALL_PATH to a default value, because most barebox-enabled boards don't have barebox in a file system. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210604084704.17410-2-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/imx'Sascha Hauer2021-06-161-2/+11
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| * | ARM: protonic: add initial support for the Protonic PRT8MM family of boardsDavid Jander2021-05-311-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | ARM: i.MX: sabresd: Add support for i.MX6QP board variantSascha Hauer2021-05-261-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SabreSD comes with different SoC variants. This patch adds support for the i.MX6QP based board. the DCD data has been taken from U-Boot 2021.04 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20210415140313.29161-1-s.hauer@pengutronix.de Link: https://lore.barebox.org/20210526064249.25378-1-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | ARM: webasto-ccbv2: Add variant with 512MB RAMHolger Assmann2021-05-251-1/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add variant for 512MB RAM board. Two firmware files will be generated - one for 256MB and 512MB respectively; the choice for shipment has to be done and depends on the underlying hardware. Signed-off-by: Holger Assmann <h.assmann@pengutronix.de> v4 ARM: webasto-ccbv2: Add variant with 512MB RAM Link: https://lore.barebox.org/20210521144313.14990-1-h.assmann@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / ARM: SoCFPGA: add Terasic DE10-Nano board supportGwenhael Goavec-Merou2021-06-021-0/+8
|/ | | | | | | | | | | | | The Terasic DE10-Nano board is based on CycloneV SoCFPGA (5CSEBA6) with What has been tested to work: - SD card - Gigabit network - FPGA (FPPx16 & FPPx32) Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com> Link: https://lore.barebox.org/20210531194019.951-1-gwenj@trabucayre.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/riscv'Sascha Hauer2021-05-171-0/+5
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| * RISC-V: sifive: add HiFive board supportAhmad Fatoum2021-05-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the recently added SiFive support, we now have enough functionality to boot a HiFive board to shell: qemu-system-riscv64 -M sifive_u serial_stdio \ -kernel./images/barebox-hifive-unleashed.img Some more drivers need to be ported for this to be useful: - sifive,spi0 needed for talking to SD-Card - clocksource The riscv-timer seems to be 10x too fast Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210427202309.32077-12-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: at91: sama5d3: add multiimage support for the microchip-ksz9477-evbOleksij Rempel2021-05-171-0/+5
|/ | | | | | | | | Rework the lowlevel init code to make it multiimage capable. With this patch we can build first and second stage in one run. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.barebox.org/20210423142829.29468-7-o.rempel@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2021-04-151-0/+5
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| * ARM: AT91: Add skov-arm9cpu board supportSam Ravnborg2021-04-141-0/+5
| | | | | | | | | | | | | | | | This adds support for an older SKOV board, the arm9cpu. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: i.MX: Kamstrup mx7 concentrator board supportLars Pedersen2021-04-141-0/+5
| | | | | | | | | | | | | | | | | | This adds support for Kamstrup mx7 concentrator board Signed-off-by: Lars Pedersen <lapeddk@gmail.com> Reviewed-by: Bruno Thomsen <bruno.thomsen@gmail.com> Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | ARM: i.MX: Add support for Skov i.MX6 boardsJuergen Borleis2021-04-131-0/+2
|/ | | | | | | | | | | | | | | | | | The Skov platform potentially consists of many variants of CPUs (i.MX6S/DL and i.MX6D/Q), NAND memories (size differs from 256 MiB to 8 GiB) and populated SDRAM (256 MiB up to 2 GiB). All these variants share one PCB. Some bootstrap resistors are provided which decode the variant and which allow for it's detection at runtime. This information is needed to choose the bootspec entry with the matching devicetree to boot the system. Based upon this mechanism usage of a single Barebox image and Linux root filesystem for all known board variants is made possible. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Søren Andersen <san@skov.dk> Signed-off-by: Sam Ravnborg <srn@skov.dk>
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 16:09:42 +0000