Hi Caleb, On Mon, 3 Jun 2024 at 18:19, Caleb Connolly <caleb.conno...@linaro.org> wrote: > > Hook up support for capsule updates loaded from disk on Qualcomm > platforms. > > Most Qualcomm devices have an A/B partition layout, with most partitions > duplicated. The metadata on which slot is active is stored in the GPT > headers in the vendor-specific attribute bits of each partition.
It's good to see capsule updates support coming up for Qualcomm platforms. AFAICS, with this series we only update U-Boot on the current active partition. IOW, real A/B support is still not supported. Do you think it is possible for U-Boot to update metadata in GPT headers and for proprietary bootloaders to pick up the U-Boot from the updated partition? -Sumit > > Add support for reading this attributes via the disk_partition struct > and using them to determine which boot partition U-Boot is flashed to > and generate the appropriate DFU string. > > This logic is gated behind a check to ensure that U-Boot is actually > being chainloaded and not run via some other mechanism. > > SCSI support for most Qualcomm platforms is not yet enabled upstream, > but will follow in future patches. > > This series enables capsule updates on the RB2, however [1] is required > for it to work properly (as otherwise MMC won't be available). > > [1]: > https://lore.kernel.org/u-boot/20240527-b4-clk-stub-v2-0-29013855e...@linaro.org/ > > To: Tom Rini <tr...@konsulko.com> > To: Simon Glass <s...@chromium.org> > To: Lukasz Majewski <lu...@denx.de> > To: Mattijs Korpershoek <mkorpersh...@baylibre.com> > To: Caleb Connolly <caleb.conno...@linaro.org> > To: Neil Armstrong <neil.armstr...@linaro.org> > To: Sumit Garg <sumit.g...@linaro.org> > Cc: Ilias Apalodimas <ilias.apalodi...@linaro.org> > Cc: u-boot@lists.denx.de > Cc: u-boot-q...@groups.io > > Changes in v3: > - Address comments in scsi dfu support > - enable CONFIG_DFU_SCSI for qcom > - Link to v2: > https://lore.kernel.org/r/20240527-b4-qcom-capsule-updates-v2-0-47583d7ad...@linaro.org > > Changes in v2: > - Add qcom capsule update support patches > - Link to v1: > https://lore.kernel.org/r/20240409-b4-dfu-scsi-v1-0-3e1441a60...@linaro.org > > --- > Caleb Connolly (8): > dfu: add scsi backend > disk: expose partition type flags > mmc: msm_sdhci: work around a bug when writing > mach-snapdragon: implement capsule update support > qcom_defconfig: savedefconfig > mach-snapdragon: use SYSRESET_PSCI > mach-snapdragon: bump up heap size > qcom_defconfig: enable capsule update support > > arch/arm/Kconfig | 2 + > arch/arm/mach-snapdragon/Kconfig | 3 + > arch/arm/mach-snapdragon/Makefile | 1 + > arch/arm/mach-snapdragon/board.c | 8 +- > arch/arm/mach-snapdragon/capsule_update.c | 147 ++++++++++ > arch/arm/mach-snapdragon/qcom-priv.h | 6 + > configs/qcom_defconfig | 19 +- > disk/part_efi.c | 1 + > doc/usage/dfu.rst | 32 +++ > drivers/dfu/Kconfig | 7 + > drivers/dfu/Makefile | 1 + > drivers/dfu/dfu.c | 5 +- > drivers/dfu/dfu_scsi.c | 435 > ++++++++++++++++++++++++++++++ > drivers/mmc/msm_sdhci.c | 7 + > include/configs/qcom.h | 5 + > include/dfu.h | 26 ++ > include/part.h | 1 + > 17 files changed, 695 insertions(+), 11 deletions(-) > --- > change-id: 20240523-b4-qcom-capsule-updates-ea2e4f8f0ff0 > base-commit: 5d8881a0801241d68701e8644d495f1d535506f0 > > // Caleb (they/them) >
