boot: pxe_utils: Add extension board devicetree overlay support
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) <kory.maincent@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org>
boot: extension: Move overlay apply custom logic to command level
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) <kory.maincent@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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.
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) <kory.maincent@bootlin.com> Reviewed-by: Simon Glass <sjg@chromium.org>
boot: Move extension board support from cmd/ to boot/
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.
board: compulab: Exclude compulab extension board detection from XPL builds
Disable compulab extension board detection functionality in XPL (eXtended
Program Loader) images to reduce size and complexity in the early boot
stage.
The CAPE_EEPROM_BUS_NUM configuration option was incorrectly depending
on CMD_EXTENSION, which represents the extension board command. However,
the cape scan functionality can be built and used independently of the
command interface through the SUPPORT_EXTENSION_SCAN option.
Change the dependency from CMD_EXTENSION to SUPPORT_EXTENSION_SCAN to
properly reflect that the I2C bus configuration is needed for the cape
scan function itself, not specifically for the command.
NXP manufacturing tools expect the device to have the NXP 0x1fc9 vendor
ID instead of 0x0525. This is the value already used by other i.MX8 and
i.MX9 boards.
Eberhard Stoll [Tue, 7 Oct 2025 08:16:09 +0000 (10:16 +0200)]
imx: kontron-sl-mx8mm: Force default environment for serial loader boot
Enable CONFIG_ENV_IS_NOWHERE and force default environment when SoC
boots from serial loader. In this case the U-Boot environment cannot
be stored to flash with the 'saveenv' command.
This makes serial loader boot completely independent from any
environment stored in flash.
imx: kontron-sl-mx8mm: Use eMMC boot part for environment if booting from eMMC
Depending on the MMC boot device, select the proper location for the
environment.
* SD card and eMMC main partition: use offsets from CONFIG_ENV_OFFSET
and CONFIG_ENV_OFFSET_REDUND.
* eMMC boot partition: use offset -2*ENV_SIZE and -ENV_SIZE from the
end of the partition.
imx: kontron-sl-mx8mm: Remove deprecation warning for old modules
The module version this warning is referring to never really existed
except for in-house development and there is a conflict with the
I2C address used for detecting it and the I2C EEPROM of the latest
OSM-S module. Remove the check.
imx: kontron-sl-mx8mm: Enable SDP support for loading via USB
Enable everything that is required to load via USB. The SPL needs
SDP support so it can load the U-Boot proper image via USB after
it has been loaded via serial loader mode of the i.MX.
This way we can use the uuu tool for loading SPL and U-Boot
proper like this:
The limit of 0x27000 (156 KiB) was valid at times the DDR firmware
required a fixed amount of 96 KiB of space. Now that we use binman
to include the DDR firmware it only needs around 57 KiB of space and
there is more room for the SPL.
Increase the max SPL size to 196 KiB so there is still 60 KiB for DDR
firmware. This allows us to enable USB and SDP support in SPL.
Michal Simek [Wed, 1 Oct 2025 06:20:07 +0000 (08:20 +0200)]
usb: onboard-hub: Make i2c-bus optional
DT binding doesn't mandate i2c-bus as required property because hub itself
doesn't need to have i2c connected.
It can be in standalone mode that only power regulator and reset should be
handled.
Or hub should be configured via spi interface.
Signed-off-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
Tom Rini [Fri, 3 Oct 2025 21:20:58 +0000 (15:20 -0600)]
Merge patch series "Drop ATAGS for B&R boards"
Wolfgang Wallner <wolfgang.wallner@br-automation.com> says:
There was recently a discussion on which boards need ATAGS support.
The B&R boards which have this support enabled actualyl don't need it.
This patch series drops the settings from the relevant defconfigs.
Tom Rini [Mon, 15 Sep 2025 19:05:48 +0000 (13:05 -0600)]
cmd: spl: Remove ATAG support from this command
While we continue to have some systems which support extremely legacy
OS booting methods, we do not have use cases for supporting this in
Falcon mode anymore. Remove this support and references from the
documentation.
Co-developed-by: Anshul Dalal <anshuld@ti.com> Signed-off-by: Tom Rini <trini@konsulko.com>
Marek Vasut [Mon, 22 Sep 2025 12:29:22 +0000 (14:29 +0200)]
linux/kernel.h: Update upper_NN_bits() and lower_NN_bits() macros
Synchronize upper_NN_bits() and lower_NN_bits() macros with Linux 6.16
commit 118d777c4cb4 ("wordpart.h: Add REPEAT_BYTE_U32()"). This fixes the
lower_32_bits() macros and assures it works with 64bit systems correctly.
This also adds 16bit variants of these macros, which will be used by the
Airoha PHY driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Tom Rini <trini@konsulko.com>
arm: armv8: remove redundant definition of mmu_status
mmu_status is used in io memcpy functions to prevent accesses to non
8-byte aligned addresses when the mmu is disabled. Though there is a
redundant definition enabled when icaches is turned off by setting
SYS_ICACHE_OFF.
This patch removes the redundant definition, allowing mmu_status to
properly report the status regardless of config settings. This shouldn't
be a problem since access to non 8-byte aligned data can be done
irrespective of icache state.
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:
Martin Schwan [Wed, 1 Oct 2025 07:44:37 +0000 (09:44 +0200)]
doc: pytest: Fix inline code and other formatting
Mainly fix inline code and some other formatting mistakes. Inline code
uses double backticks `` in reStructuredText instead of single backticks
as in Markdown.
Also fix some smaller formatting issues, such as excess colons before
literal blocks.
Javier Tia [Tue, 30 Sep 2025 12:53:28 +0000 (06:53 -0600)]
doc: Update coding style to recommend b4 for patch submission
Replace references to patman with b4 as the recommended tool for
preparing and sending patches. b4 is widely adopted in the Linux kernel
community and U-Boot ships with configuration to simplify its use with
the project mailing list.
The updated guidelines describe how to prepare series with b4, handle
cover letters and recipient lists, run style checks, and send patches
safely. Instructions also highlight how to collect and apply review tags
before resending.
This change documents the preferred workflow for contributors and
ensures consistency with common practices across related upstream
communities.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org> Signed-off-by: Javier Tia <javier.tia@linaro.org>
Michal Simek [Mon, 22 Sep 2025 16:03:39 +0000 (18:03 +0200)]
env: spi: Fix gd->env_valid for the first write
When both SPI environment locations are invalid (gd->env_valid ==
ENV_INVALID), the first call to saveenv writes to the primary location and
sets the active flag. However, the logic for updating gd->env_valid
incorrectly sets it to ENV_REDUND, which does not match the actual location
written. This causes the first two writes to target the same location, and
alternation only begins after the second write.
Update the logic to alternate gd->env_valid based on whether the last write
was to the primary or redundant location, ensuring the first write sets
ENV_VALID and subsequent writes alternate as expected. This aligns
env_valid with the actual storage location and fixes the alternation
sequence from the first write.
With this change, the "Valid environment" printout correctly reflects the
active location after each save, and the alternation between primary and
redundant locations works as intended from the start.
Signed-off-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Marek Vasut <marek.vasut@mailbox.org> Acked-by: E Shattow <e@freeshell.de>
Andrew Goodbody [Wed, 1 Oct 2025 09:28:37 +0000 (10:28 +0100)]
b4-config: Improve b4 config for correct operation
The recent change to .b4-config resulted in some expected recipients not
being added to the address lists. Rework the commands so that all
expected recipients are added while maintaining the ordering from the
first change.
Fixes: 26efc940c86 ("b4-config: configure `b4` for U-Boot") Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
This pull request brings a set of updates across SoCFPGA platforms
covering Agilex5, Agilex7, N5X, and Stratix10. The changes include:
* Agilex5 enhancements:
- USB3.1 enablement and DWC3 host driver support
- System Manager register configuration for USB3
- Watchdog timeout increase and SDMMC clock API integration
- dcache handling improvements in SMC mailbox path
- Enable SPL_SYS_DCACHE_OFF in defconfig
* Clock driver improvements:
- Introduce dt-bindings header for Agilex clocks
- Add enable/disable API and EMAC clock selection fixes
- Replace manual shifts with FIELD_GET usage
* Device tree changes:
- Agilex5: disable cache allocation for reads
- Stratix10: add NAND IP node
- Enable driver model watchdog
- Enable USB3.1 node for Agilex5
* Config cleanups:
- Simplify Agilex7 VAB defconfig
- Remove obsolete SYS_BOOTM_LEN from N5X VAB config
- Enable CRC32 support for SoCFPGA
- Increase USB hub debounce timeout
Overall this set improves reliability of DDR and cache flows,
adds missing USB and MMC features for Agilex5, and refines clock
and configuration handling across platforms.
This patch set has been tested on Agilex 5 devkit, and Agilex devkit.
Tom Rini [Tue, 30 Sep 2025 22:01:05 +0000 (16:01 -0600)]
Merge tag 'u-boot-amlogic-next-20250930' of https://source.denx.de/u-boot/custodians/u-boot-amlogic into next
- set reversed bit when using internal phy on GXL SoCs
- support gpio toggle command for amlogic gpio
- fix saradc
- remove unreachable in meson clk driver
- Stop premature exit from for loop in meson pwm driver
- fix JetHub D1 eth mac fallback generation
Andrew Goodbody [Fri, 8 Aug 2025 09:34:43 +0000 (10:34 +0100)]
pwm: meson: Stop premature exit from for loop
In meson_pwm_probe the for loop attempts to get the name of a clock but
the following if..else statements only perform useful work if -ENODATA
is returned from clk_get_by_name. If clk_get_by_name simply succeeds
then this results in a premature exit from the for loop and the
following code can never be reached. Make the else clause only apply for
an error return from clk_get_by_name.
Andrew Goodbody [Tue, 22 Jul 2025 14:06:14 +0000 (15:06 +0100)]
adc: meson-saradc: uint cannot be less than zero
timeout is declared as a uint but then tested for being less than zero
which must always fail. Change the while loop for a pre-decrement on
timeout and test timeout for being zero.
Neil Armstrong [Fri, 2 May 2025 06:51:45 +0000 (08:51 +0200)]
net: mdio: mux-meson-gxl: set reversed bit when using internal phy
This bit is necessary to receive packets from the internal PHY.
Without this bit set, no activity occurs on the interface.
Normally u-boot sets this bit, but if u-boot is compiled without
net support, the interface will be up but without any activity.
The vendor SDK sets this bit along with the PHY_ID bits.
Ported from the Linux change at [1] from Da Xu merged in
commit [2].
[1] https://lore.kernel.org/all/20250425192009.1439508-1-da@libre.computer/
[2] b23285e93bef ("net: mdio: mux-meson-gxl: set reversed bit when using internal phy")
board: mpfs_icicle: fix pointer assignment in board_fdt_blob_setup()
Correct the assignment in board_fdt_blob_setup() to use *fdtp instead of
fdtp, ensuring the caller receives the correct FDT address. This
resolves an issue where the device tree pointer was not properly set due
to assigning to the local parameter rather than the dereferenced
pointer.
Restore support for environment storage in EXT4 filesystem on eMMC boot.
The previous cleanup incorrectly removed this fallback option which is
needed for boards that store their environment in an EXT4 partition.
This configuration is OS-specific rather than board-dependent and should
remain as it is configurable via menuconfig. Even if it is not described
in ST defconfigs people may have enabled it in their defconfig.
Tim Harvey [Mon, 29 Sep 2025 19:21:49 +0000 (12:21 -0700)]
net: lwip: ensure alignment of packet buffers
Network packet buffers should be aligned to PKTALIGN. Add a compiler
attribute to ensure this.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
[jf: use __aligned(x) from <linux/compiler_attributes.h>] Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
net: lwip: dhcp: set ntpserverip environment variable
Once the DHCP exchange is complete, if we have an IP address for an NTP
server, set the ntpserverip environment variable accordingly. Although
not necessary to make the sntp command use that server (since it is
known internally to the lwIP stack), this makes the behavior in line
with the legacy NET stack. This is also consistent with exporting the
DNS servers etc.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> Suggested-by: Michal Simek <michal.simek@amd.com>
net: lwip: dhcp: make NTP servers usable by the sntp command
When both CMD_DHCP and CMD_SNTP are enabled, one would expect the NTP
servers received by DHCP to be used by the sntp command by default. Fix
dhcp_loop() so that it is indeed the case.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org> Reported-by: Michal Simek <michal.simek@amd.com>
net: lwip: enable debug traces for SNTP when CONFIG_LWIP_DEBUG is set
Now that SNTP is supported, enable SNTP debug traces when LWIP_DEBUG is
enabled. In particular, this allows to see which NTP servers are
received during DHCP.
Andrew Goodbody [Mon, 29 Sep 2025 09:11:57 +0000 (10:11 +0100)]
usb: dwc3: Remove redundant test
In dwc3_ep0_complete_data there is a test for 'r' being null and the
code will return at that point if so. After that point 'r' is guaranteed
to not be null and testing for that is redundant. Remove the test for
'r' being non-null.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org> Reviewed-by: Marek Vasut <marek.vasut@mailbox.org> Link: https://lore.kernel.org/r/20250929-dwc3_ep0-v1-1-1d5c58933bde@linaro.org Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Chance Yang [Tue, 26 Aug 2025 03:36:17 +0000 (11:36 +0800)]
fastboot: Fix has-slot command always returning yes for fb_nand
The issue was a mismatch in return value conventions between functions:
- getvar_get_part_info() expects >= 0 for success
- fb_nand_lookup() returns 0 on success, 1 on failure (from
mtdparts_init and find_dev_and_part)
When partition didn't exist, fb_nand_lookup returned 1, but
fastboot_nand_get_part_info passed it directly to getvar_get_part_info,
which treated 1 >= 0 as success, causing has-slot to always return yes.
Fix by converting positive return values to -ENOENT in
fastboot_nand_get_part_info to match the expected error convention.
arch: arm: socfpga: Configure USB3 System Manager registers
For successful reset staggering pulse operation, reset pulse
override bit is set. Port overcurrent bit 1, which in reality
reflects PIPE power present signal is set to avoid giving
false information of Vbus status to HPS controller.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
configs: Increase USB Hub debounce timeout in Agilex5
Some legacy USB mass storage devices during connection were
observed to have debounce issues. Hence, increasing the default
USB Hub debounce timeout value to handle this issue for devices
connected to Agilex5 boards.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
drivers: clk: agilex: Support for enable/disable API
Update Agilex clock driver to support enabling or disabling
the peripheral clocks via clock driver model APIs.
The caller will pass the clock ID to this driver and the driver
will then proceed to manipulate the desired bit in the Agilex clock
manager peripheral PLL register based on the given clock ID.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Boon Khai Ng [Thu, 14 Aug 2025 03:17:40 +0000 (11:17 +0800)]
cache: Check dcache availability before calling cache functions
When the data cache (dcache) is disabled, calling related
status functions can lead to compilation errors due to
undefined references.
Adding a !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) check before
invoking dcache_status() (used in common/memsize.c:get_ram_size())
and mmu_status() (from arch/arm/include/asm/io.h).
Without this check, builds with dcache disabled will fail to compile.
Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Boon Khai Ng [Thu, 14 Aug 2025 03:17:39 +0000 (11:17 +0800)]
arch: arm: mach-socfpga: smc: Add dcache flushing and invalidation in smc_send_mailbox()
Adding the dcache flushing and invalidation in the smc_send_mailbox()
At the same time replace the use of u64 with uintptr_t to ensure
compatibility across different architectures and correct the
pointer arithmetic for buffer end address calculation.
Signed-off-by: Mahesh Rao <mahesh.rao@altera.com> Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
arm: socfpga: mailbox: Remove CONFIG_CADENCE_QSPI guard from QSPI mailbox API declarations
The QSPI mailbox API function declarations (mbox_qspi_close and
mbox_qspi_open) in mailbox_s10.h were guarded by CONFIG_CADENCE_QSPI
preprocessor conditional. This prevented their prototypes from being
visible to code that may use the stub implementations when
CONFIG_CADENCE_QSPI is disabled.
Remove the CONFIG_CADENCE_QSPI preprocessor conditional so these functions
are always declared, regardless of the configuration. This avoids potential
build or linkage errors when stubs are used.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
arm: socfpga: Define Use FPGA switch handoff section size for Agilex5
Agilex5 FPGA switch section in the handoff data is larger by 32 bytes
than the default value as these extra sections contains I3C0 and I3C1
register offsets and values with 4 bytes each.
This requires 4 more times of reading the FPGA switch section of the
handoff data to fully populate the handoff data table in the memory
during runtime.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
drivers: ddr: altera: Correct DDR calibration status check
Bit 3 of the seq2core register is no longer set to indicate
calibration completion. Instead, added polling of the seq2core
register until it reads 0b00000111, signaling that the Nios
processor has started the calibration process.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Compatibility check of IOSSM mailbox with U-Boot is performed
by verifying the mailbox specification version. If check fails,
appropriate error message is displayed.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
configs: socfpga: Remove SYS_BOOTM_LEN from N5X VAB config
Remove the current CONFIG_SYS_BOOTM_LEN in N5X VAB defconfig.
Previously, the size was set to 32MB, but due to larger kernel image,
64MB size is required. This 64MB configuration has been set as
default in the Kconfig.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
To ensure unintentional bugs occurring because of config changes
in master defconfig and its VAB variants, VAB defconfig files now
include the master defconfig and enable config values specific to
VAB functionality only.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
arm: dts: socfpga: Enable driver model for watchdog timer
All SoCFPGA platforms are switching to CONFIG_WDT (driver
model for watchdog timer drivers) from CONFIG_HW_WATCHDOG. Status
of watchdog is enabled to assist with this switching.
Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
projects / thirdparty / u-boot.git / log
