summaryrefslogtreecommitdiff
path: root/include
AgeCommit message (Collapse)Author
2025-04-12ARM: tegra: replace per-device config headers with generic TegraSvyatoslav Ryhel
Most device headers contain SoC specific part and common Tegra post part. Add a generic header which can be used by any Tegra device of one of the supported SoC generations (T20, T30, T114, T124 or T210) without need in device specific configuration. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-12ARM: tegra: convert CFG_TEGRA_BOARD_STRING into Kconfig optionSvyatoslav Ryhel
Convert CFG_TEGRA_BOARD_STRING into Kconfig option and move it into device board Kconfig. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-12ARM: tegra: board: set CFG_SYS_NS16550_COM1 according to TEGRA_ENABLE_UARTSvyatoslav Ryhel
Link CFG_SYS_NS16550_COM1 value to chosen CONFIG_TEGRA_ENABLE_UART Tegra wide. Remove all CFG_SYS_NS16550_COM1 from device headers. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-12board: motorola: add Atrix 4G MB860 and Droid X2 MB870 supportSvyatoslav Ryhel
The Motorola Atrix 4G (MB860) and Droid X2 (MB870) both featured a dual-core NVIDIA Tegra 2 AP20H processor clocked at 1GHz, coupled with 1GB of DDR2 RAM. Storage consisted of 16GB of internal flash memory, expandable via microSD. The display was a 4.0-inch TFT LCD with a resolution of 960x540 pixels (qHD). The devices originally ran on Android up to 2.3 (Gingerbread). Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-12power: regulator: add regulator support for CPCAP PMICSvyatoslav Ryhel
The driver provides regulator set/get voltage and enable/disable functions for CPCAP PMIC. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-12power: pmic: add the basic CPCAP PMIC supportSvyatoslav Ryhel
The CPCAP is a Motorola/ST-Ericsson creation, a multifunctional IC whose main purpose was power control. It was used in a wide variety of Motorola products, both Tegra and OMAP based. The most notable devices using this PMIC are the Motorola Droid 4, Atrix 4G, and Droid X2. Signed-off-by: Svyatoslav Ryhel <[email protected]>
2025-04-11Merge tag 'qcom-for-2025.07' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-snapdragon Qualcomm changes for v2025.07: CI: https://source.denx.de/u-boot/custodians/u-boot-snapdragon/-/pipelines/25653 There's been a surprising amount of activity lately on the Qualcomm side with the two oldest boards getting some fresh attention and a lot of cleanup and polish going on across the board. * SDM660 gets USB phy fixes and a pinctrl driver * The recently added SA8775P/QCS9100 SoC gets a pinctrl driver * The Qualcomm pinctrl driver now handles reserved pins correctly, fixing crashes on some boards when running "gpio status -a" * OF_UPSTREAM_BUILD_VENDOR is enabled in qcom_defconfig * SDM845 and SC7280 get missing clocks added (since we're now stricter about those). This gets USB working more reliably in more cases. * DM_USB_GADGET is enabled for all boards using DWC3 and fasbtoot is enabled too * A bug in the livetree fixup code is fixed (making USB work on a lot more platforms) * Button label lookup is made case insensitive* bootretry becomes more dynamic, allowing it to be hijacked to make a "persistent" boot menu that allows dropping to U-Boot shell later on * A new qcom-phone.config fragment is added along with a phone-specific default environment and phone-specific debugging/bringup docs. These make U-Boot more usable on devices without a serial port or keyboard. * The db820c gets fixed up and updated documentation * The db410c also gets some love and modernisation as well as a new reviewer. * A new driver is added for the USB VBUS regulator found on various Qualcomm PMICs * The Qualcomm SPMI driver gets some fixes and cleanup for SPMI v5 and v7 support.
2025-04-11Merge tag 'u-boot-imx-master-20250411' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-imx CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/25652 - Add i.MX8MP LDB support. - Various phycore-imx93 environment improvements. - Add support for Toradex SMARC iMX8MP.
2025-04-11Merge tag 'efi-2025-07-rc1' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-efi Pull request efi-2025-07-rc1 CI: * https://source.denx.de/u-boot/custodians/u-boot-efi/-/pipelines/25648 Documentation: * Update authenticated capsules documentation UEFI: * Add support for loading FIT images including initrd - efi_loader: efi_load_initrd: provide a memory mapped initrd - efi_loader: binary_run: register an initrd - bootm: add support for initrd in do_bootm_efi * efi_selftest: remove un-needed NULL checks * efi: Fix efiboot for payloads loaded from memory * Print extra information from the bootmgr * Move public cert for capsules to .rodata * Set EFI capsule dfu_alt_info env explicitly * Make FDT extra space configurable * Install the ACPI table from the bloblist * Handle GD_FLG_SKIP_RELOC * Handle malloc() errors Others: * acpi: select CONFIG_BLOBLIST * smbios: select CONFIG_BLOBLIST * xilinx: dfu: Fill directly update_info.dfu_string * cmd: fwu: Dump custom fields from mdata structure * board: remove capsule update support in set_dfu_alt_info()
2025-04-11Merge tag 'mmc-2025-04-11' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-mmc CI: https://source.denx.de/u-boot/custodians/u-boot-mmc/-/pipelines/25640 - Support Sandisk and Micron eMMC BOOT/RPMB hardware partition resizing - Optimize eMMC erasing time - Simplify poll CD logic - Fix possible Synchronous Abort for sdhci - Kconfig dependencies fix - Minor code update, return fail if mmc_complete_init, avoid uniniting twice
2025-04-11board: dragonboard410c: Use BOOTSTD instead of DISTRO_DEFAULTSStephan Gerhold
Reduce the environment size by using standard boot instead of distro boot. It uses faster bootdevs first by default (eMMC -> SD -> USB -> Network), so set "boot_targets" to keep the current ordering (USB -> SD -> eMMC -> Network). Perhaps this should be changed for consistency, but for now this keeps the behavior similar to before. Signed-off-by: Stephan Gerhold <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Reviewed-by: Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Caleb Connolly <[email protected]>
2025-04-11board: toradex: add Toradex SMARC iMX8MPVitor Soares
Add support for the Toradex SMARC iMX8MP. Link: https://www.toradex.com/computer-on-modules/smarc-arm-family/nxp-imx-8m-plus Link: https://www.toradex.com/products/carrier-board/smarc-development-board-kit Signed-off-by: Vitor Soares <[email protected]>
2025-04-11efi_loader: Move public cert for capsules to .rodataIlias Apalodimas
commit ddf67daac39d ("efi_capsule: Move signature from DTB to .rodata") was reverted in commit 47a25e81d35c ("Revert "efi_capsule: Move signature from DTB to .rodata"") because that's what U-Boot was usually doing -- using the DT to store configuration and data. Some of the discussions can be found here [0]. (Ab)using the device tree to store random data isn't ideal though. On top of that with new features introduced over the years, keeping the certificates in the DT has proven to be problematic. One of the reasons is that platforms might send U-Boot a DTB from the previous stage loader using a transfer list which won't contain the signatures since other loaders are not aware of internal U-Boot ABIs. On top of that QEMU creates the DTB on the fly, so adding the capsule certificate there does not work and requires users to dump it and re-create it injecting the public keys. Now that we have proper memory permissions for arm64, move the certificate to .rodata and read it from there. [0] https://lore.kernel.org/u-boot/CAPnjgZ2uM=n8Qo-a=DUkx5VW5Bzp5Xy8=Wgmrw8ESqUBK00YJQ@mail.gmail.com/ Signed-off-by: Ilias Apalodimas <[email protected]> Tested-by: Jonathan Humphreys <[email protected]> # on TI sk-am62p-lp Tested-by: Neil Armstrong <[email protected]> # on AML-A311D-CC Tested-by: Raymond Mao <[email protected]>
2025-04-11efi_loader: binary_run: register an initrdAdriano Cordova
Add support to install an initrd when running an EFI binary with efi_binary_run Signed-off-by: Adriano Cordova <[email protected]> Acked-by: Ilias Apalodimas <[email protected]>
2025-04-11efi_loader: efi_load_initrd: provide a memory mapped initrdAdriano Cordova
U-Boot can pass an initrd to subsequent boot stages via the EFI_LOAD_FILE2_PROTOCOL. The current implementation only supports this functionality via the efi boot manager: the initrd is taken from the load options of the BootCurrent variable. This commit adds support for registering a memory mapped initrd, e.g. loaded from a FIT image. For now this new method takes precedence over loading the initrd from the BootCurrent variable (if both are present) because the BootCurrent variable is not cleared on exiting the boot manager. Signed-off-by: Adriano Cordova <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2025-04-11mmc: mmc_boot: Support Sandisk and Micron eMMC BOOT/RPMB hardware partition ↵Luke Wang
resizing Current mmc bootpart-resize command only support Samsung eMMC BOOT/RPMB hardware partition resizing. Add Sandisk and Micron eMMC BOOT/RPMB hardware partition resizing support. The commands and parameters for resizing partitions are different for each manufacturer. Select the corresponding function according to CID. Signed-off-by: Luke Wang <[email protected]> Reviewed-by: Marek Vasut <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2025-04-11mmc: Simplify poll CD logic in case cyclic framework is enabledMarek Vasut
Simplify 90cc07fd786d ("mmc: Poll CD in case cyclic framework is enabled") according to suggestions by Rasmus. The struct cyclic_info is zero-size in case CONFIG_CYCLIC is not enabled and does not add any size to struct mmc, so it can unconditionally be part of that structure. This allows clean up of all the other conditionals in mmc.c which can now be unconditionally present, as they also add no extra space. Suggested-by: Rasmus Villemoes <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2025-04-10drivers: scsi: Add 'erase' supportVaradarajan Narayanan
UFS devices uses the block and scsi frameworks. Enable UFS erase support by adding erase support to SCSI. Signed-off-by: Varadarajan Narayanan <[email protected]>
2025-04-10power-domain: Add refcountingMiquel Raynal
It is very surprising that such an uclass, specifically designed to handle resources that may be shared by different devices, is not keeping the count of the number of times a power domain has been enabled/disabled to avoid shutting it down unexpectedly or disabling it several times. Doing this causes troubles on eg. i.MX8MP because disabling power domains can be done in recursive loops were the same power domain disabled up to 4 times in a row. PGCs seem to have tight FSM internal timings to respect and it is easy to produce a race condition that puts the power domains in an unstable state, leading to ADB400 errors and later crashes in Linux. CI tests using power domains are slightly updated to make sure the count of on/off calls is even and the results match what we *now* expect. As we do not want to break existing users while stile getting interesting error codes, the implementation is split between: - a low-level helper reporting error codes if the requested transition could not be operated, - a higher-level helper ignoring the "non error" codes, like EALREADY and EBUSY. Signed-off-by: Miquel Raynal <[email protected]>
2025-04-10dm: core: Add a helper to retrieve devices through graph endpointsMiquel Raynal
There are already several helpers to find a udevice based on its position in a device tree, like getting a child or a node pointed by a phandle, but there was no support for graph endpoints, which are very common in display pipelines. Add a new helper, named uclass_get_device_by_endpoint() which enters the child graph reprensentation, looks for a specific port, then follows the remote endpoint, and finally retrieves the first parent of the given uclass_id. This is a very handy and straightforward way to get a bridge or a panel handle. Reviewed-by: Simon Glass <[email protected]> Signed-off-by: Miquel Raynal <[email protected]>
2025-04-08Merge patch series "acpi: simplify updating ACPI table header checksum"Tom Rini
Heinrich Schuchardt <[email protected]> says: Introduce a new function to update ACPI table headers. This allows to simplify the existing code. Link: https://lore.kernel.org/r/[email protected]
2025-04-08acpi: new function acpi_update_checksum()Heinrich Schuchardt
Introduce a new function to update ACPI table headers. This allows to simplify the existing code. Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Matthias Brugger <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2025-04-08Merge branch 'next'Tom Rini
Note that this undoes the changes of commit cf6d4535cc4c ("x86: emulation: Disable bloblist for now") as that was intended only for the release due to time.
2025-04-07Revert "Merge patch series "pxe: Precursor series for supporting read_all() ↵Tom Rini
in extlinux / PXE"" This reverts commit 8bc3542384e3a1219e5ffb62b79d16dddc1b1fb9, reversing changes made to 698edd63eca090a2e299cd3facf90a0b97bed677. There are still problems with this series to work out. Link: https://lore.kernel.org/u-boot/CAFLszTjw_MJbK9tpzVYi3XKGazcv55auBAdgVzcAVUta7dRqcg@mail.gmail.com/ Signed-off-by: Tom Rini <[email protected]>
2025-04-04Fix EFI boot file name definition for 64-bit x86Jeremy Compostella
This change aligns the preprocessor directive with the standard configuration flag used for detecting 64-bit x86 architecture. Signed-off-by: Jeremy Compostella <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2025-04-04Merge patch series "cmd: fuse: Introduce fuse writebuff sub-system and clean up"Tom Rini
Harsha Vardhan V M <[email protected]> says: This patch series introduces the fuse writebuff sub-system command and makes improvements to the existing fuse implementation by removing the custom string functions. The patches are required to be applied in sequence. The series consists of the following changes: Patch 1 removes custom string functions and replaces them with standard string functions. Patch 2 introduces fuse.rst documentation for fuse commands. Patch 3 introduces the fuse writebuff sub-system command, allowing to write a structured buffer in memory to fuses, and implementing the necessary function calls. Patch 4 enables the fuse sub-system in the K3 platform. Patch 5 updates the fuse.rst documentation to include details about the new fuse writebuff command. These changes aim to improve the fuse sub-system by the removal of custom string functions and the addition of the fuse writebuff command improves fuse programming workflows by allowing to write a structured buffer in memory to efuses. Link: https://lore.kernel.org/r/[email protected]
2025-04-04cmd: fuse: Add fuse writebuff sub-system commandHarsha Vardhan V M
Add CMD_FUSE_WRITEBUFF config option to add and enable fuse writebuff sub-system command. Add fuse_writebuff function to be invoked on writebuff command. Signed-off-by: Harsha Vardhan V M <[email protected]> Reviewed-by: Tom Rini <[email protected]>
2025-04-03Merge patch series "membuff: Add tests and update to support a flag for ↵Tom Rini
empty/full" Simon Glass <[email protected]> says: The membuff implementation curently has no tests. It also assumes that head and tail can never correspond unless the buffer is empty. This series provides a compile-time flag to support a 'full' flag. It also adds some tests of the main routines. The data structure is also renamed to membuf which fits better with U-Boot. There may be some cases in the code which could be optimised a little, but the implementation is functional. Link: https://lore.kernel.org/r/[email protected]
2025-04-03membuf: Minor code-style improvementsSimon Glass
Show the start in end in the comment. Comment a missing variable in membuf_readline() and fix its line length. Signed-off-by: Simon Glass <[email protected]>
2025-04-03membuf: Include stdboolSimon Glass
This uses a bool type so include the required header. Signed-off-by: Simon Glass <[email protected]>
2025-04-03membuf: Rename structSimon Glass
Rename the struct to match the function prefix and filenames. Signed-off-by: Simon Glass <[email protected]>
2025-04-03membuff: Rename the files to membufSimon Glass
Rename the C and header files to use the membuf basename, to match the functions. Add a MAINTAINERS entry while we are here. Signed-off-by: Simon Glass <[email protected]>
2025-04-03membuff: Rename functions to have membuf_ prefixSimon Glass
The double 'f' is not necessary and is a bit annoying as elsewhere in U-Boot we use 'buf'. Rename all the functions before it is used more widely. Signed-off-by: Simon Glass <[email protected]>
2025-04-03boot: Handle running out of labelsSimon Glass
If only a single label is provided in the list, bootdev_next_label() does not operate correctly and reads beyond the end of the pointer list. Fix this by adding a new check. Also add a note to convert this array to an alist Signed-off-by: Simon Glass <[email protected]>
2025-04-03boot: Consider non-bootable partitionsSimon Glass
Any 'bootable' flag in a DOS partition causes boostd to only scan bootable partitions for that media. This can mean that extlinux.conf files on the root disk are missed. Put this logic behind a flag and update the documentation. For now, the flag is enabled, to preserve the existing behaviour of bootstd which is to ignore non-bootable partitions so long as there is at least one bootable partition on the disk. Future work may provide a command (or some other mechanism) to control this. Signed-off-by: Simon Glass <[email protected]>
2025-04-03acpi: Mark struct acpi_rsdp as packedSimon Glass
At present the size of this struct is too large on 64-bit machines. Annotate it with __packed to fix this. Signed-off-by: Simon Glass <[email protected]>
2025-04-03sandbox: Correct a typo in mapmemSimon Glass
This should say 'cast', not 'case', so fix it. Signed-off-by: Simon Glass <[email protected]>
2025-04-02Merge patch series "fs: exfat: Add exfat port based on exfat-fuse"Tom Rini
Marek Vasut <[email protected]> says: Import exfat-fuse libexfat, add U-Boot filesystem layer porting glue code and wire exfat support into generic filesystem support code. This adds exfat support to U-Boot. Fill in generic filesystem interface for mkdir and rm commands. Make filesystem tests test the generic interface as well as exfat, to make sure this code does not fall apart. Link: https://github.com/relan/exfat/commits/0b41c6d3560d ("CI: bump FreeBSD to 13.1.") Link: https://lore.kernel.org/r/[email protected]
2025-04-02fs: exfat: Add U-Boot porting layerMarek Vasut
Add U-Boot adjustments to the libexfat code and integrate the result into U-Boot filesystem layer. This provides full read-write exfat support for U-Boot available via generic filesystem interface. FS_DIRENT_NAME_LEN is increased to 1024 in case exfat is enabled, because EXFAT can use UTF16 names, which do not fit into current FS_DIRENT_NAME_LEN. To avoid affecting every configuration, increase FS_DIRENT_NAME_LEN only in case EXFAT is enabled. Example usage via sandbox, assuming disk.img with one exfat partition: Drive info: $ ./u-boot -Tc 'host bind 0 ../disk.img ; host info 0' dev blocks blksz label path 0 262144 512 0 ../disk.img List files: $ ./u-boot -Tc 'host bind 0 ../disk.img ; ls host 0:1 /api' 475 Kconfig 230 Makefile 1873 README ... 10 file(s), 0 dir(s) Load and checksum a file: $ ./u-boot -Tc 'host bind 0 ../disk.img ; load host 0:1 $loadaddr .config ; \ crc32 $loadaddr $filesize' 56724 bytes read in 1 ms (54.1 MiB/s) crc32 for 00000000 ... 0000dd93 ==> b2e847c9 $ crc32 .config b2e847c9 Load .config file to RAM, store the file into FS as /newconfig, load the /newconfig into RAM and checksum the file: $ ./u-boot -Tc 'host bind 0 ../disk.img ; load host 0:1 $loadaddr .config ; \ save host 0:1 $loadaddr /newconfig $filesize ; \ load host 0:1 0x10000 /newconfig ; \ crc32 0x10000 $filesize' 56724 bytes read in 1 ms (54.1 MiB/s) 56724 bytes written in 0 ms 56724 bytes read in 0 ms crc32 for 00010000 ... 0001dd93 ==> b2e847c9 Remove file 3.txt and create new directory /newdir: $ ./u-boot -Tc 'host bind 0 ../disk.img ; ls host 0:1 / ; \ rm host 0:1 3.txt ; mkdir host 0:1 /newdir ; \ ls host 0:1 /' ... 0 1.txt 0 2.txt 0 3.txt 0 4.txt 0 5.txt 7 file(s), 4 dir(s) ... 0 1.txt 0 2.txt newdir/ 0 4.txt 0 5.txt 6 file(s), 5 dir(s) Acked-by: Tom Rini <[email protected]> Signed-off-by: Marek Vasut <[email protected]>
2025-04-02fs: Add generic fs_devread() implementationMarek Vasut
Add generic implementation of write into a block device to be used by filesystem implementations. This is a pair function for already existing fs_devread(). Signed-off-by: Marek Vasut <[email protected]>
2025-04-02linux: Add generic struct stat {}Marek Vasut
Add generic implementation of struct stat {} imported from Linux 6.13.y commit 27560b371ab8 ("fs: pack struct kstat better"). This can be used by filesystem code imported from elsewhere. Now struct stat {} becomes available on all supported architectures. Signed-off-by: Marek Vasut <[email protected]>
2025-04-01Merge patch series "airoha: Add initial support AN7581"Tom Rini
Christian Marangi <[email protected]> says: This little series adds initial support for Airoha AN7581 SoC. With the help of some backport patch, this use OF_UPSTREAM directly. Posting this to have the targer and the very basic driver. Ethernet, SNAND and eMMC support is already ready downstream and will be posted shortly after this gets approved. Having the first driver ready permits to separately push dedicate series for SNAND, eMMC and Ethrnet as they all depends on basic support of clock and reset and nothing else. Link: https://lore.kernel.org/r/[email protected]
2025-04-01airoha: Add initial support for Airoha AN7581 SoCChristian Marangi
Add initial support for Airoha AN7581 SoC. This adds the initial Kconfig and Makefile entry for the SoC, an U-Boot specific DTSI and initial config for it. Also add the initial code for CPU and RAM initialization. Signed-off-by: Christian Marangi <[email protected]>
2025-03-31net: remove commented out lineJerome Forissier
Commit 1d5d292b7941 ("net: split net into net{,-common,-legacy,-lwip}") inadvertendly left a commented out declaration for do_wget() in net-common.h. Remove it. Signed-off-by: Jerome Forissier <[email protected]> Reviewed-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]>
2025-03-30config: falcon: move CFG_SYS_SPI_* to KconfigAnshul Dalal
CFG_SYS_SPI_* are used in falcon boot to specify the offsets and size of the respective payloads. This patch moves them to Kconfig keeping the values consistent for each of the affected boards. Reviewed-by: Tom Rini <[email protected]> Reviewed-by: Fabio Estevam <[email protected]> Signed-off-by: Anshul Dalal <[email protected]>
2025-03-30Merge patch series "Clarify DM_FLAG_PROBE_AFTER_BIND behaviour"Tom Rini
Caleb Connolly <[email protected]> says: In Simon's series reworking autoprobe, a discussion came up about DM_FLAG_PROBE_AFTER_BIND, specifically that it wasn't very clear where this flag should be used. This series implements my suggestions made there to clarify the use of this flag, and fixup the two driver which erroneously apply it to their driver struct (this does nothing). Link: https://lore.kernel.org/u-boot/[email protected]/ Link: https://lore.kernel.org/r/[email protected]
2025-03-30dm: clarify DM_FLAG_PROBE_AFTER_BIND behaviourCaleb Connolly
The DM_FLAG_PROBE_AFTER_BIND flag only makes sense on a per-device basis, however recently added documentation as well as some confused drivers imply that it might be added to a driver definition, this does nothing. Clarify the new documentation and expand on the comment by the definition to point people in the right direction. Signed-off-by: Caleb Connolly <[email protected]> Reviewed-by: Simon Glass <[email protected]> Acked-by: Michal Simek <[email protected]>
2025-03-26Merge branch 'staging' of ↵Tom Rini
https://source.denx.de/u-boot/custodians/u-boot-tegra into next - More Tegra video improvements
2025-03-26blkmap: pass information on ISO image to the OSSughosh Ganu
The EFI HTTP boot puts the ISO installer image at some location in memory. Information about this image has to be passed on to the OS kernel, which is done by adding a persistent memory(pmem) node to the devicetree(DT) that is passed to the OS. The OS kernel then gets information about the presence of this ISO image and proceeds with the installation. In U-Boot, this ISO image gets mounted as a memory mapped blkmap device slice, with the 'preserve' attribute. Add a helper function which iterates through all such slices, and invokes a callback. The callback adds the pmem node to the DT and removes the corresponding memory region from the EFI memory map. Invoke this helper function as part of the DT fixup which happens before booting the OS. Signed-off-by: Sughosh Ganu <[email protected]> Reviewed-by: Tobias Waldekranz <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]>
2025-03-26blkmap: add an attribute to preserve the mem mappingSughosh Ganu
Some blkmap memory mapped devices might have to be relevant even after U-Boot passes control to the next image as part of the platform boot. An example of such a mapping would be an OS installer ISO image, information for which has to be provided to the OS kernel. Use the 'preserve' attribute for such mappings. The code for adding a pmem node to the device-tree then checks if this attribute is set, and adds a node only for mappings which have this attribute. Signed-off-by: Sughosh Ganu <[email protected]> Reviewed-by: Tobias Waldekranz <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]>