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The stm32mp157 images successfully boot only once. Subsequent boot attempts fail to reach U-Boot. The root cause turns out to be in U-Boot corruption during the first boot. The stm32mp1 U-Boot stores its environment at the end of GPT partition named 'ssbl' since v2020.10-rc2. However Buildroot genimage template for stm32mp157 boards creates 'ssbl' partition w/o extra space for U-Boot primary and redundant environments. This patch explicitly specifies 'ssbl' partition size that should be enough for both u-boot.stm32 image (~1M) and both environments (16K). Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com> Tested-by: Pierre-Jean Texier <texier.pj2@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches