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The BootROM in Rockchip SoCs will enter maskrom mode when boot firmware
cannot be found in nand/spi/mmc storage.
In maskrom mode the USB OTG port can accept one of two custom commands.
Initially a 0x471 command to load TPL into SRAM. After TPL has been
executed and it has returned back-to-BROM, a 0x472 command to load SPL
into start of DRAM.
Add two binman images that can be used to RAM boot from maskrom mode:
- u-boot-rockchip-usb471.bin that contains TPL to init DRAM.
- u-boot-rockchip-usb472.bin that contains SPL and the normal FIT
payload with i.e. U-Boot proper, TF-A and FDT.
A config fragment rockchip-ramboot.config can be used to enable building
of these two binman images, e.g.:
make generic-rk3588_defconfig rockchip-ramboot.config
These binman images can be used with the proprietary rkbin boot_merger
tool to create a special loader image that can be used with tools such
as rkdeveloptool or rockusb tools to RAM boot from maskrom, e.g.:
Create loader image:
$ ../rkbin/tools/boot_merger ./RK3588MINIALL.ini
Boot from maskrom:
$ rkdeveloptool db u-boot-rockchip-rk3588-loader.bin
or
$ rockusb download-boot u-boot-rockchip-rk3588-loader.bin
Another option that does not require use of proprietary tools is using
open source tools such as rkflashtool or rkusbboot that can load the
binman images directly without any need to first create a special loader
image to RAM boot from maskrom, e.g.:
$ rkflashtool l < u-boot-rockchip-usb471.bin
$ rkflashtool L < u-boot-rockchip-usb472.bin
or
$ rkusbboot u-boot-rockchip-usb471.bin u-boot-rockchip-usb472.bin
Signed-off-by: Jonas Karlman <[email protected]>
Tested-by: Arnaud Patard <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
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The Linux kernel can discover SMBIOS tables through two primary methods:
1. Via EFI tables, when using EFI boot;
2. Via the 'smbios3-entrypoint' property in the /chosen node of the
device tree.
When U-Boot boots a Linux kernel using a non-EFI command ("bootm",
"bootz", or "booti"), the kernel relies on the device tree to detect
the hardware. If SMBIOS tables are available in U-Boot, they should
be passed to the kernel via this device tree property.
This patch modifies boot_fdt_prepare(), to inject the SMBIOSv3 table
address into the device tree if there is a table generated by U-boot.
The "board_fdt_chosen_smbios" is weak in order to leave the possibilty
for specific boards to select custom SMBIOS addresses.
The changes in this patch are added in the context of supporting this
device tree property in linux kernel:
https://lkml.org/lkml/2025/10/24/1393
Device tree schema was updated to include the "smbios3-entrypoint" node
in pull request: https://github.com/devicetree-org/dt-schema/pull/177
Signed-off-by: Adriana Nicolae <[email protected]>
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Partitions can be become unusable due to power cuts or failed updates.
Use the bootmeth RAUC if partitions for at least one slot exist. The
bootmeth can then select the working slot.
Signed-off-by: Leonard Anderweit <[email protected]>
Tested-by: Martin Schwan <[email protected]>
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Only check if the root partition exists when scanning for the slots
partitions and not if the filesystem can be accessed. It is not needed
to access the filesystem of the root partition as it might not be
supported by u-boot or be encrypted.
Signed-off-by: Leonard Anderweit <[email protected]>
Tested-by: Martin Schwan <[email protected]>
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Fix two memory allocation bugs in label_boot_extension():
1. When label->fdtdir is not set, overlay_dir was used without any
memory allocation.
2. When label->fdtdir is set, the allocation size was incorrect,
using 'len' (just the fdtdir length) instead of 'dir_len' (which
includes the trailing slash and null terminator).
Resolve both issues by moving the memory allocation and string
formatting outside the conditional block, resulting in clearer code
flow and correct sizing in all cases.
Closes: https://lists.denx.de/pipermail/u-boot/2025-November/602892.html
Addresses-Coverity-ID: 638558 Memory - illegal accesses (UNINIT)
Fixes: 935109cd9e97 ("boot: pxe_utils: Add extension board devicetree overlay support")
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Tested-by: Surkov Kirill <[email protected]>
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Size of array buf was incorrect due to sizeof returning the
size of an integer (typically 32 bits) instead of a u64 type
(64 bits). Hence, buf array was shorter than expected.
Signed-off-by: Francois Berder <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-dfu
u-boot-dfu-20251107:
CI: https://source.denx.de/u-boot/custodians/u-boot-dfu/-/pipelines/28223
Android:
* Add bootargs environment to kernel commandline
DFU:
* Support DFU over PCIe in SPL
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Signed-off-by: Quentin Schulz <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
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SPL_FIT_FULL_CHECK currently shares its description and help text with
FIT_FULL_CHECK which is quite confusing, so let's specify this applies
to SPL.
Fixes: 6f3c2d8aa5e6 ("image: Add an option to do a full check of the FIT")
Signed-off-by: Quentin Schulz <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
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When previously using script based bootflows, the U-Boot
environment variable bootargs was used to customize the kernel
commandline at boot time.
In order to get the same behaviour, concatenate the bootflow
commandline with the contents the bootargs environment variable.
Signed-off-by: Nicolas Belin (TI.com) <[email protected]>
Signed-off-by: Guillaume La Roque (TI.com) <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mattijs Korpershoek <[email protected]>
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Anshul Dalal <[email protected]> says:
Hi all,
We currently make use of CMD_BOOTI and CMD_BOOTZ in the SPL boot flow in
falcon mode, this isn't correct since all CMD_* configs are only meant
for U-Boot proper and not the SPL.
Therefore this patch set adds new LIB_BOOT[IMZ] configs that allow for
more granular selection of their respective compilation targets.
Additionally, this also allows us to more easily disable support for
raw images from secure falcon mode (SPL_OS_BOOT_SECURE) by doing the
following:
config LIB_SPL_BOOTI
...
depends on SPL_OS_BOOT && !SPL_OS_BOOT_SECURE
...
Link: https://lore.kernel.org/r/[email protected]
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Using CMD_* configs from spl doesn't make logical sense. Therefore
this patch replaces the checks for CMD_BOOTx with newly added library
symbols LIB_BOOT[IMZ] and SPL_LIB_BOOT[IMZ] which are enabled by their
respective CMD_* or SPL_* counterparts.
On platforms with non-secure falcon mode, SPL_BOOTZ is enabled by
default for 32-bit ARM systems and SPL_BOOTI is enabled by default for
64-bit ARM and RISCV.
The respective C files (image.c/zimage.c) are compiled based on library
symbols $(PHASE_)LIB_BOOTx instead which are in turn selected by both
CMD_BOOTx and SPL_BOOTx as required.
Signed-off-by: Anshul Dalal <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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to boot flows"
Kory Maincent (TI.com) <[email protected]> says:
This series converts the extension board framework to use UCLASS as
requested by Simon Glass, then adds extension support to pxe_utils
and bootmeth_efi (not tested) to enable extension boards devicetree load
in the standard boot process.
I can't test the imx8 extension scan enabled by the
imx8mm-cl-iot-gate_defconfig as I don't have this board.
I also can't test the efi bootmeth change as I don't have such board.
Link: https://lore.kernel.org/r/20251030-feature_sysboot_extension_board-v5-0-cfb77672fc68@bootlin.com
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Add support for scanning and applying extension board devicetree
overlays during EFI boot. After loading the main board devicetree,
the system now scans for available extension boards and applies their
overlays automatically.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Simplify the return path in distro_efi_try_bootflow_files() to prepare
for adding extension board support in a subsequent commit.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add support for scanning and applying extension board devicetree
overlays during PXE boot. After loading the main board devicetree,
the system now scans for available extension boards and applies their
overlays automatically.
This enables dynamic hardware configuration for systems with extension
boards during boot scenarios which are using pxe_utils.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The extension_overlay_cmd environment variable approach is specific to
the U-Boot extension_board command, while other boot flows (pxe_utils,
bootstd) handle overlay loading differently.
Move the extension_overlay_cmd execution out of the core extension
framework to the command level. This decouples the framework from
command-specific behavior and prepares for future extension support
in other boot flows.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Remove the legacy extension board implementation now that all boards
have been converted to use the new UCLASS-based framework. This
eliminates lines of legacy code while preserving functionality
through the modern driver model approach.
Update the bootstd tests, due to the removal of extension hunter.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
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Introduce UCLASS-based extension board support to enable more
standardized and automatic loading of extension board device tree
overlays in preparation for integration with bootstd and pxe_utils.
Several #if CONFIG_IS_ENABLED are used in cmd/extension_board.c to ease the
development but don't worry they are removed later in the series.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Relocate extension board support from cmd/ to boot/ directory in
preparation for converting the extension framework to use UCLASS.
Also improve code style by applying reverse xmas tree ordering.
Signed-off-by: Kory Maincent (TI.com) <[email protected]>
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Fix a typo in image-fit.c.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Wolfgang Wallner <[email protected]>
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Fix typos in boot/Kconfig.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Wolfgang Wallner <[email protected]>
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Add the option to load the bootscript with the tftp command (static IP)
instead of the dhcp command (dynamic IP). For this a new function
tftpb_run similar to dhcp_run, is needed. The selection of which command
to use can be done with the ip_dyn environment variable, which can be
set to yes or no. The ip_dyn variable was chosen as it is already in use
on the imx platforms.
Also edit the bootstd doc.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Benjamin Hahn <[email protected]>
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At present the EFI bootmgr scans all devices in the system before
deciding which one to boot. Ideally it would use the bootstd iterator
for this, but in the meantime, give it a lower priority, so it runs
just before the network devices.
Note that if there are no hunted network devices hunted, then it will
run at the end, after all bootdevs are exhausted. In other words, it
will always run.
Signed-off-by: Simon Glass <[email protected]>
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When there are no more bootdevs we should still go through the global
bootmeths, since some may not have yet been used, if their priority has
not yet come up.
Add a final check for this at the end of the iterator.
Update the documentation to match the new behaviour of global bootmeths.
Signed-off-by: Simon Glass <[email protected]>
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At present before scanning global bootmeths, the iterator sets the
method count to the index of the first global bootmeth. Now that we
support scanning the global bootmeths multiple times, we must leave this
count alone.
Check against have_global and first_glob_method instead.
Signed-off-by: Simon Glass <[email protected]>
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Allow bootmeths to select when they want to run, using the bootdev
priority. Provide a new bootmeth_glob_allowed() function which checks if
a bootmeth is ready to use.
Fix a comment in bootflow_system() which is a test for global bootmeths.
Signed-off-by: Simon Glass <[email protected]>
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Use the methods_done flags to make sure that each global bootmeth is
only used once. For now this has no effect, since they are all processed
at the start.
Signed-off-by: Simon Glass <[email protected]>
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Add the logic to scan through the global bootmeths for every new
bootdev, in preparation for allowing global bootmeths to select where in
the hunter ordering they go.
Use a new bootmeth_glob_allowed() function to check if a bootmeth is
allowed, ensuring that each can run at most once.
For now this has no actual effect, since the global bootmeths are
unconditionally processed at the start, with iter->methods_done being
updated to include all of them. Therefore when scanning again, no
unprocessed global bootmeths will be found.
Signed-off-by: Simon Glass <[email protected]>
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Add a bitfield which tracks when bootmeths have been used. This will be
needed when global bootmeths can be used later in the iteration.
Fix a missing bootflow_free() while here.
Signed-off-by: Simon Glass <[email protected]>
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The current 'doing_global' refers to being in the state of processing
global bootmeths. Since global bootmeths are currently used once at the
start, it becomes false once the last global bootmeth has been used.
In preparation for allowing bootmeths to run at other points in the
bootstd interation, add a new 'have_global' flag which tracks whether
there are any global bootmeths in the method_order[] list. It is set up
when iteration starts. Unlike doing_global which resets back to false
after the global bootmeths have been handled, once have_global is set to
true, it remains true for the entire iteration process. This provides a
quick check as to whether global-bootmeth processing is needed.
Signed-off-by: Simon Glass <[email protected]>
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For now we only support dropping non-global bootmeths from the
iteration. Update first_glob_method in that case and add a few checks
that things are correct.
Signed-off-by: Simon Glass <[email protected]>
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At present, normally when one bootmeth fails on a partition, we move on
and try the next bootmeth. However, this was not the case for the final
partition due to a bug. Rework the logic so that all partitions are
treated the same.
Signed-off-by: Simon Glass <[email protected]>
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We will want to use this same logic in another place within iter_inc(),
so split it out into its own function.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Add a few comments about global bootmeths and first_glob_method
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Reviewed-by: Sam Protsenko <[email protected]>
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Today, only a few platforms enable SPL_LOAD_FIT_FULL, and all enable
SPL_LOAD_FIT. As can be seen in usage, the FULL symbol is a superset of
the first symbol, not an alternative. Update Kconfig entries based on
this and simplify the only code which checks for either being set.
Signed-off-by: Tom Rini <[email protected]>
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If there is no more active slot found in find_active_slot(), like when
all slots in BOOT_ORDER have a count of 0, the counters are reset to their
default value CONFIG_BOOTMETH_RAUC_DEFAULT_TRIES. The BOOT_ORDER is _not_
changed, which is logically correct (especially for the case when there is
only one (active) slot set, e.g. BOOT_ORDER only contains 'B', probably due
to RAUC option prevent-late-fallback being set). Resetting the counters of
inactive slots also does not harm here, and is fine as a generic solution.
But the log_info statement in this scenario
INFO: Resetting boot order and all slot tries
is incorrect. Change this to
INFO: Resetting all slot tries to 3
with the 3 being inserted by CONFIG_BOOTMETH_RAUC_DEFAULT_TRIES.
Signed-off-by: Andreas Pretzsch <[email protected]>
Reviewed-by: Martin Schwan <[email protected]>
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Only PowerPC and LS1021A platforms can make use of RAMBOOT_PBL. Add the
dependencies to the symbol.
Signed-off-by: Tom Rini <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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We have a large number of library symbols that should not be prompted
for by the user really but rather selected by the platform (or SoC) as
needed. To start with however, make these depend on !COMPILE_TEST.
Signed-off-by: Tom Rini <[email protected]>
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Merge the outstanding changes from the 'next' branch to master.
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This reverts commit 9fe2e4b46458f9c4ec6b8115ebf18b4b26fe6127.
Commit 9fe2e4b46458 ("fdt: Make sure there is no stale initrd left")
introduces a regression in case when U-Boot transfers control to an EFI
app which acts as a subsequent bootloading program. Such an app might
try to set "linux,initrd-start" and "linux,initrd-end" fdt properties,
but by that time those properties are already removed by the code added
in the mentioned commit.
Particularly, the issue was observed on the E850-96 board where GBL EFI
app [1] can't run Android successfully anymore. More specifically, the
kernel can't see the ramdisk and panics with next messages:
/dev/root: Can't open blockdev
VFS: Cannot open root device "" or unknown-block(0,0): error -6
Please append a correct "root=" boot option; ...
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
fdt_initrd() function (where initrd dts properties are removed) is
called two times:
1. First it's called by EFI boot manager (e.g. as a part of U-Boot
Standard Boot mechanism) when it's installing FDT:
fdt_initrd
image_setup_libfdt
efi_install_fdt
efi_bootmgr_run
efi_mgr_boot
It's already enough for EFI app to malfunction. But then it's also
called second time:
2. From the EFI app, via EFI DT fixup protocol:
fdt_initrd
image_setup_libfdt
efi_dt_fixup
struct efi_dt_fixup_protocol efi_dt_fixup_prot = {
.fixup = efi_dt_fixup
};
See [2] for specific GBL code which sets those fdt properties and then
runs DT fixup protocol callback.
This issue was discussed [3], but no action was taken since then. Revert
this patch for now, until a proper solution can be found.
[1] https://source.android.com/docs/core/architecture/bootloader/generic-bootloader/gbl-dev
[2] https://android.googlesource.com/platform/bootable/libbootloader/+/refs/heads/gbl-mainline/gbl/libgbl/src/android_boot/mod.rs#208
[3] https://lists.denx.de/pipermail/u-boot/2025-July/593879.html
Fixes: 9fe2e4b46458 ("fdt: Make sure there is no stale initrd left")
Signed-off-by: Sam Protsenko <[email protected]>
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The android boot header is page aligned but the current code made the
assumption that the header was always smaller than the current header
format.
When the page_size is defined as 2048, as this is the case with the
cuttlefish target, the current code sets the end of the header in the
middle of it as the v3 and v4 headers are respectively 2112 and 2128
bytes long.
Fix that by aligning to page_size
Fixes: 1115027d2f75 ("android: boot: update android_image_get_data to support v3, v4")
Signed-off-by: Guillaume Ranquet <[email protected]>
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The ARM64 kernel Image size with LOCKDEP enabled is now around 80 MiB, which
makes it unbootable due to "Image too large: increase CONFIG_SYS_BOOTM_LEN".
Increase the image size limit to 128 MiB to future proof the limit.
Signed-off-by: Marek Vasut <[email protected]>
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At this time there are still major Linux distributions which by default
boot using LEGACY_IMAGE_FORMAT type scripts. Add this option to
DISTRO_DEFAULTS to ensure these platforms can still boot.
Fixes: d780965927d4 ("Drop the special am335x_boneblack_vboot target")
Reported-by: Sascha Silbe <[email protected]>
Tested-By: Sascha Silbe <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Since the bootmeth "rauc" is not a global boot method, do not select the
corresponding BOOTMETH_GLOBAL option.
Signed-off-by: Martin Schwan <[email protected]>
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unsupported layout"
Martin Schwan <[email protected]> says:
This series fixes a segfault, that would occur at the end of scanning a
device, which does not contain the required partition layout scheme for
a RAUC system.
With this series, a "bootflow scan" should now correctly scan the
specified devices with boot method "rauc" without crashing on invalid
partition schemes.
Link: https://lore.kernel.org/r/[email protected]
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The private data struct can be freed when loading the boot script, as we
don't need the slot information anymore at this point.
Signed-off-by: Martin Schwan <[email protected]>
Tested-by: Wadim Egorov <[email protected]>
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Move freeing a distro_rauc_priv struct to a new, separate function for
better reuse.
Signed-off-by: Martin Schwan <[email protected]>
Tested-by: Wadim Egorov <[email protected]>
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Don't null bootflow->bootmeth_priv, as the private struct is freed later
on by the bootflow.
Signed-off-by: Martin Schwan <[email protected]>
Tested-by: Wadim Egorov <[email protected]>
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Fix a segfault when cleaning up the slots from the private struct. This
fault was generated by accessing a member of a null pointer.
Signed-off-by: Martin Schwan <[email protected]>
Tested-by: Wadim Egorov <[email protected]>
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