Stephan Gerhold [Mon, 8 Sep 2025 11:31:23 +0000 (13:31 +0200)]
serial: msm: Cleanup register naming
Some of the register definitions are inconsistently named (likely copied
as-is from Qualcomm's Little Kernel/LK bootloader, which uses the
MSM_BOOT_UART naming scheme). Rename them to be in line with the other
register definitions and move them up to be next to the related register.
Stephan Gerhold [Mon, 8 Sep 2025 11:31:22 +0000 (13:31 +0200)]
Revert "serial: serial_msm: Delay initialization to let pins stabilize"
There have been issues with autoboot on DB410c for years, where autoboot
gets interrupted by spurious input on the UART console. Back in 2021, I've
tried to fix this by inserting a delay before UART initialization, but it
has turned out this is not working reliably either.
It looks like the root cause has always been the lack of bias-pull-up,
which was causing the RX line to be floating when UART is disconnected.
The delay does not seem to be needed anymore when applying bias-pull-up,
so drop it again in favor of the proper fix.
qcom_defconfig: Enable pinctrl driver for SDM630/660
Pin controller driver for SDM630/636/660 SoCs was added in b4420a0c9ed ("drivers: pinctrl: Add Qualcomm SDM630/660 TLMM driver"),
but not enabled in qcom_defconfig. Correct that omission.
regulator: qcom-rpmh-regulator: add support for pm6150l regulators
Add the pm6150l regulator data found on the Qualcomm SM6350 platform.
The tables are imported from the Linux driver. The SMPS regulators were
not added now.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
U-Boot and Linux pet the watchdog by default,
but it's helpful to also have the command to control the watchdog,
(CONFIG_CMD_WDT)
so it can be manually disabled by the user, for example, if the kernel
is expected to stall during debugging with kgdb.
serial: msm-geni: Update kconfig name for DEBUG_UART_MSM_GENI
The previous description "Qualcomm snapdragon" barely tells the user
anything, update the name so that it's clear which configs the user can
choose between, namely the older QUP driver, or the newer GENI driver.
Tom Rini [Fri, 3 Oct 2025 20:39:27 +0000 (14:39 -0600)]
phy: qcom: Rework Kconfig logic around MSM8916_USB_PHY
This PHY driver is required by USB_EHCI_MSM and not useful on its own.
Rather than have it be a prompted option, it should (and currently is)
select'd by USB_EHCI_MSM. Remove the prompt for this option and then
correct the dependency chain (it must select PHY).
Tom Rini [Fri, 11 Jul 2025 15:16:01 +0000 (09:16 -0600)]
mtd: nvmxip: Make use of LBAF for printing lbaint_t
When printing the contents of an lbaint_t variable we need to use LBAF
to print it in order to get the correct format type depending on 32 or
64bit-ness.
Tom Rini [Fri, 11 Jul 2025 15:15:57 +0000 (09:15 -0600)]
mtd: spi: sf_dataflash.c: Make use of 'z' for printing size_t
When printing the contents of an size_t variable we need to use z prefix
to the format character in order to get the correct format type
depending on 32 or 64bit-ness.
Tom Rini [Fri, 4 Jul 2025 21:45:56 +0000 (15:45 -0600)]
mtd: Correct dependency on SYS_FLASH_CHECKSUM
This feature requires that CFG_SYS_FLASH_BASE is defined and this in
turn is only done in the case of FLASH_CFI_DRIVER && !CFI_FLASH or in
other words, when DM_MTD is not enabled.
Tom Rini [Wed, 2 Jul 2025 01:06:09 +0000 (19:06 -0600)]
mtd: Add function prototype for mtd_read_oob_bf(...)
The function mtd_read_oob_bf is called by cmd/nand.c but does not have a
prototype in any header. Add this to include/linux/mtd/mtd.h as that is
the most logical place currently.
Fixes: 1fac57720719 ("nand: Add a watch command") Signed-off-by: Tom Rini <trini@konsulko.com>
Andrew Goodbody [Tue, 1 Jul 2025 16:12:44 +0000 (17:12 +0100)]
mtd: nand: Prevent dereference of NULL pointer
In nand_wait_ready there is a loop that includes a NULL check for
chip->dev_ready before it is dereferenced. Use a NULL check once the
loop is exited as well to cover the case where it exits due to a timeout
and it is therefore not known if chip->dev_ready is NULL or not.
This issue found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Andrew Goodbody [Thu, 26 Jun 2025 10:49:32 +0000 (11:49 +0100)]
cmd: mtd: Prevent use of uninitialised variable
ret maybe used uninitialised in some cases so instead
initialise it first to prevent this.
This issue was found by Smatch.
Fixes: 9671243e8d10 (cmd: mtd: Use the subcmd infrastructure to declare mtd sub-commands) Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org> Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Andrew Goodbody [Mon, 6 Oct 2025 15:09:25 +0000 (16:09 +0100)]
spi: spi-uclass: Use unwind goto
In _spi_get_bus_and_cs the check for stacked parallel support needing
multiple chip select support does a direct return on error. Instead it
should set the error code in ret and then use the unwind goto.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Tue, 12 Aug 2025 16:42:59 +0000 (17:42 +0100)]
spi: fspi: Logical or used instead of logical and
In erratum_err050568 the test for apllicability uses logical or to check
multiple chip IDs but this means the test will always evaluate to true
as at least 1 term will always be true. Logical and should have been
used so that the expression evaluates to true if all terms are true
which would mean that no chip ID of interest was in use.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Tue, 12 Aug 2025 13:31:16 +0000 (14:31 +0100)]
spi: ich: Do not use uninitialised value
In ich_spi_exec_op_swseq the variable with_address is only assigned a
value in the case of op->addr.nbytes being non-zero.
Initialise with_address to zero. so that it is always valid.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Thu, 3 Jul 2025 14:40:46 +0000 (15:40 +0100)]
clk: Return value calculated by ERR_PTR
In clk_set_default_get_by_id ret is passed to ERR_PTR but nothing is
done with the value that this calculates which is obviously not the
intention of the code. This is confirmed by the code around where this
function is called.
Instead return the value from ERR_PTR.
This issue found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org> Acked-by: Quentin Schulz <quentin.schulz@cherry.de>
Tom Rini [Tue, 28 Oct 2025 15:59:55 +0000 (09:59 -0600)]
Merge patch series "clk: versaclock: Fix two issues found by Smatch"
Andrew Goodbody <andrew.goodbody@linaro.org> says:
Should return value calculated by ERR_PTR as calling code attempts to
check for it.
Also do not dereference a pointer that could be an error pointer before
checking it with IS_ERR.
Andrew Goodbody [Thu, 31 Jul 2025 11:11:47 +0000 (12:11 +0100)]
mmc: owl_mmc: Do not dereference data before NULL check
In owl_mmc_prepare_data there is a NULL check for the pointer data but
it happens after data has already been dereferenced. Refactor the code
so that the NULL check happens before any code dereferences data.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Fri, 25 Jul 2025 12:04:26 +0000 (13:04 +0100)]
gpio: intel_gpio: Initialise or0 and or1
In intel_gpio_set_flags the two variables or0 and or1 may be used
uninitialised. Correct this by setting initial values in the
declaration.
Also there is no need to use '|=' when the initial value is 0 and there
is only one assignment performed to each variable so just use '='
instead.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Tue, 12 Aug 2025 11:34:39 +0000 (12:34 +0100)]
spi: cadence_qspi: Do not return unset error code
In spi_calibration if the low range fails to calibrate then the code
attempted to return the variable err but this has not been set in this
case. Instead just return -EIO.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Tue, 12 Aug 2025 11:34:38 +0000 (12:34 +0100)]
spi: cadence_qspi: Off by 1 in test for timeout
In cadence_qspi_apb_exec_flash_cmd the test for a timeout uses a
post-decrement on the variable retry which will result in a value of -1
after the loop exit, or it would if the variable were signed.
To fix this make retry a signed variable and test its value for being
equal to -1.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Andrew Goodbody [Wed, 23 Jul 2025 15:54:07 +0000 (16:54 +0100)]
clk: versaclock: return value calculated by ERR_PTR
In versaclock_get_name -ENOMEM is passed to ERR_PTR but nothing is
done with the value that this calculates which is obviously not the
intention of the code. This is confirmed by the code around where this
function is called.
Instead return the value from ERR_PTR.
This issue was found by Smatch.
Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
No big features this time, mostly a collection of patches that have been
lying around for a bit. There are some DT updates, for those SoCs that
do not use OF_UPSTREAM yet, hopefully that's the last time we need to do
this exercise. And that's offset by switching over two more SoCs to
OF_UPSTREAM. Two new boards get a defconfig, and some improvements for
the sun8i-emac Ethernet driver. Finally a patch that fixes occassional
DRAM size misdetection for new A523 boards.
There are a few outstanding patches that just wait for getting some
details confirmed, which I might send then later.
CI passed, and I tested this briefly on affected boards.
Andre Przywara [Fri, 24 Oct 2025 00:30:00 +0000 (01:30 +0100)]
sunxi: dts: arm: update devicetree files from Linux kernel tree
Sync the kernel devicetree source files for the Allwinner SoCs with
32-bit cores that do not use OF_UPSTREAM yet. The files were taken
from a v6.18-rc1 tree.
To maintain ABI compatibility with existing LTS kernels, one change
moving some IP blocks to the r_intc interrupt controller is excluded.
This effectively reverts Linux commits 994e5818392c and 9fdef3c3d8c2.
This commit also adds a new board devicetree for the A33 Vstar board,
plus one DT overlay for the OrangePi Zero interface board.
This update should not impact any existing U-Boot functionality.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Fri, 24 Oct 2025 00:08:38 +0000 (01:08 +0100)]
sunxi: dts: arm64: update devicetree files from Linux kernel tree
Sync the devicetree files from the official Linux kernel tree, v6.18-rc1.
This is covering Allwinner SoCs with 64-bit ARM cores.
The bulk is cosmetic changes: board model name changes, DT node renames,
whitespace fixes.
The actual changes are not dramatic: the CPU cores get their caches
described properly, some A64 video clocks get fixed, some A64 boards
describe the header pins for the WiFi module, the Pinephone adds an
alternative magnetometer used on some board revisions.
On the H5 side the microSD slots get marked as having no write-protect
detection, and the NanoPi Neo Plus2 board describes its regulators better.
The H6 boards switch from RSB to I2C for their PMIC connection.
As before, this omits the non-backwards compatible changes to the R_INTC
controller, to remain compatible with older kernels.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Sat, 25 Oct 2025 18:03:07 +0000 (19:03 +0100)]
sunxi: switch Allwinner A80 boards to OF_UPSTREAM
In contrast to some other Allwinner SoCs, there is no difference between
the DTs for the Allwinner A80 SoCs (sun9i) between the U-Boot and the
Linux kernel repository.
Remove the old copies of the A80 related .dts and .dtsi files, and switch
most of sun9i boards over to use OF_UPSTREAM.
There is the Sunchip CX-A99 (family of) board(s) for which we don't have
a DT in the kernel tree. Keep the .dts file in the legacy U-Boot DT
directory, and let the board's defconfig opt out of OF_UPSTREAM.
Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Andre Przywara [Sat, 25 Oct 2025 17:57:27 +0000 (18:57 +0100)]
sunxi: switch the Allwinner T113 SoC to OF_UPSTREAM
In contrast to some other Allwinner SoCs, there is no difference between
the DTs for the Allwinner T113-s3 SoC (sun20i) between the U-Boot and the
Linux kernel repository.
Remove the old copies of the T113-s3 related .dts and .dtsi files, and
switch the whole SoC (represented by just one board) over to use
OF_UPSTREAM.
Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
net: sun8i-emac: Add support for active-low leds with internal PHY
A device-tree property is already defined to indicate that the internal
PHY should be used with active-low leds, which corresponds to a
specific bit in the dedicated syscon register.
Add support for setting this bit when the property is present.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
James Hilliard [Fri, 11 Apr 2025 01:10:25 +0000 (19:10 -0600)]
Makefile: pass KEYDIR when set to sunxi-spl.bin mkimage
Currently we pass this for u-boot-spl.kwb targets, however when
building sunxi-spl.bin in the TOC0 format we may also need to
specify a KEYDIR, as such we should also pass this when set
to mkimage for the sunxi-spl.bin target.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Andre Przywara [Mon, 20 Oct 2025 14:26:22 +0000 (15:26 +0100)]
sunxi: a523: Re-use H6/H616 DRAM size detection method
The H6 and H616 DRAM initialisation code recently gained a joint and
improved size detection routine, which helped to avoid the occasional
DRAM size misdetection.
Use the same code for the A523 DRAM initialisation as well, which
suffers from the same misdetection at times.
Chen-Yu Tsai [Mon, 20 Oct 2025 16:19:30 +0000 (00:19 +0800)]
sunxi: a523: Add OrangePi 4A defconfig
The OrangePi 4A is a typical Raspberry Pi model B sized development
board from Xunlong designed around an Allwinner T527 SoC.
The board has the following features:
- Allwinner T527 SoC
- AXP717B + AXP323 PMICs
- Up to 4GB LPDDR4 DRAM
- micro SD slot
- optional eMMC module
- M.2 slot for PCIe 2.0 x1
- 16 MB SPI-NOR flash
- 4x USB 2.0 type-A ports (one can be used in gadget mode)
- 1x Gigabit ethernet w/ Motorcomm PHY (through yet to be supported GMAC200)
- 3.5mm audio jack via internal audio codec
- HDMI 2.0 output
- eDP, MIPI CSI (2-lane and 4-lane) and MIPI DSI (4-lane) connectors
- USB type-C port purely for power
- AP6256 (Broadcom BCM4345) WiFi 5.0 + BT 5.0
- unsoldered headers for ADC and an additional USB 2.0 host port
- 40-pin GPIO header
Add defconfig for it.
Signed-off-by: Chen-Yu Tsai <wens@kernel.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
* develop: virtio: Fix qemu example (true/false -> on/off)
* separate read and write command documentation
* usage: Add general rule for `$?`
* askenv: Reword and remove return value
* seama: Reword return value section
* usage: Use glob for all commands
* Fix typos and formatting
Tom Rini [Fri, 24 Oct 2025 16:02:59 +0000 (10:02 -0600)]
doc: seama: Reword return value section
With the addition of general text about how the return value is handled,
reference that while retaining the additional information about setting
$seama_image_size
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de> Signed-off-by: Tom Rini <trini@konsulko.com>
Tom Rini [Fri, 24 Oct 2025 16:02:58 +0000 (10:02 -0600)]
doc: askenv: Reword and remove return value
With the addition of general text about how the return value is handled,
remove the examples from the askenv documentation as they are all normal
expected results.
Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Tom Rini [Fri, 24 Oct 2025 16:02:57 +0000 (10:02 -0600)]
doc: usage: Add general rule for `$?`
For nearly all commands in U-Boot the '?' variable is handled the same
way with 0 meaning success, 1 meaning any failure. Explain this in the
general rules section of the cmdline documentation (with a link to a
counter example) and then remove the redundant wording from most
commands. We retain a section about the return value in a number of
places where we are doing something such as always returning a specific
value or we have useful additional information to go along with the
normal return codes.
Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Wolfgang Wallner [Fri, 24 Oct 2025 15:11:58 +0000 (17:11 +0200)]
doc: develop: Change formatting to make binman doc more readable
Change the formatting of binman.rst so that the compiled HTML output
becomes more readable. Changes include enumerations and the escaping of
arguments starting with a double dash (e.g. --debug).
Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Casey Connolly [Thu, 23 Oct 2025 14:26:46 +0000 (16:26 +0200)]
efi_loader: efi_console: support editable input fields
When editing eficonfig "optional data" (typically cmdline arguments)
it's useful to be able to edit the string rather than having to re-type
the entire thing. Implement support for editing buffers to make this a
whole lot nicer. Specifically, add support for moving the cursor with
the arrow keys and End key as well as deleting backwards with the delete
key.
doc: separate read and write command documentation
* Avoid two step navigation to get to the description of the write command.
* Add missing index entries
* Correct formatting of the examples.
* Describe configuration and return value.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Benjamin Hahn [Tue, 21 Oct 2025 14:34:17 +0000 (16:34 +0200)]
bootstd: make it possible to use tftp for netboot with standardboot
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 <sjg@chromium.org> Signed-off-by: Benjamin Hahn <B.Hahn@phytec.de>
Peng Fan [Fri, 17 Oct 2025 09:32:34 +0000 (17:32 +0800)]
firmware: scmi: Add i.MX95 SCMI CPU Protocol
This protocol allows an agent to start, stop a CPU or set reset vector.
It is used to manage auxiliary CPUs in an LM (e.g. additional cores in an
AP cluster).
Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
phy: ti: phy-j721e-wiz: Allow reinitialization when SERDES is pre-configured
Move the SERDES configuration check after clock and reset initialization
and change it from a hard failure to a skip of WIZ initialization. This
allows the driver to probe successfully when the SERDES has been
pre-configured by a previous boot stage (e.g., ROM or SPL).
This approach aligns with how the Linux kernel handles pre-configured
SERDES, where the driver gracefully skips reinitialization rather than
failing to probe.
Add Logical Machine Management(LMM) protocol which is intended for boot,
shutdown, and reset of other logical machines (LM). It is usually used to
allow one LM to manager another used as an offload or accelerator engine.
Following Linux Kernel, created a separate folder for holding vendor
protocol drivers.
Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
Peng Fan [Fri, 17 Oct 2025 09:32:32 +0000 (17:32 +0800)]
firmware: scmi: Support probe vendor ID 0x80 and 0x82
Preparing to add i.MX LMM and CPU protocol driver, support probe SCMI
vendor ID 0x80(i.MX SCMI LMM ID) and 0x82(i.MX SCMI CPU ID). And use
Kconfig option to support conditional compilation.
Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
Tom Rini [Tue, 21 Oct 2025 20:37:01 +0000 (14:37 -0600)]
env: fat, ubi: Fix gd->env_valid for the first write
As resolved and explained in detail in commit e589d5822cac ("env: spi:
Fix gd->env_valid for the first write") and archived discussion there is
a corner case where we don't do the right thing with redundant
environments. This same exact check was present in the mmc code and
resolved with commit 813a0df27a8a ("env: Invert gd->env_valid for
env_mmc_save") and in the discussion of that patch, I noted that both
fat and ubi (and at the time, sf) were doing the same thing. Take the
time now to correct fat and ubi environment.
Peng Fan [Fri, 17 Oct 2025 09:32:31 +0000 (17:32 +0800)]
firmware: scmi: Cleanup the SCMI MISC ID
SCMI_IMX_PROTOCOL_ID_MISC was never used, so drop it. And move
SCMI_PROTOCOL_ID_IMX_MISC out of enum scmi_std_protocol to
scmi_nxp_protocols.h, because it is i.MX specific and following Linux
Kernel style, use macro definition.
Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
Peng Fan [Fri, 17 Oct 2025 09:32:30 +0000 (17:32 +0800)]
firmware: scmi: Conditionally compile protocol support
Add conditional compilation for SCMI protocol support in scmi_get_protocol()
and scmi_add_protocol() based on corresponding Kconfig options. This ensures
that only the enabled protocols are compiled and accessed, and reducing binary
size.
Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Alice Guo <alice.guo@nxp.com>
Ilias Apalodimas [Wed, 22 Oct 2025 12:23:15 +0000 (15:23 +0300)]
makefile: Fix recursive makes
Since the Kbuild bump to 5.1 and specifically
commit af1a9935708a ("kbuild: make -r/-R effective in top Makefile for old Make versions")
the recursion rules have changed.
'make O=/output/dir/' as well as './test/py/test.py --bd sandbox --build'
is working fine but anything that recursively called the makefile was
failing e.g 'make tests', 'make qcheck' etc, which calls a bash script
that ends up calling the makefile again.
The reason is that the internal 'sub_make_done' variable of the makefile
was set after the first pass and the output dir was never evaluated
properly. Reset the variable value if we are executing any of these
tests.
Fixes: af1a9935708a ("kbuild: make -r/-R effective in top Makefile for old Make versions") Reported-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Test-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Tom Rini [Wed, 22 Oct 2025 20:17:16 +0000 (14:17 -0600)]
Merge patch series "boot: Support priority for global bootmeths"
Simon Glass <sjg@chromium.org> says:
At present global bootmeths always run first, before all other
bootmeths. Optimisations in the code take advantage of this, putting
them at the end, so they can be used once and then forgotten.
In some cases it is useful to run global bootmeths later in the boot.
For example, the EFI-bootmgr bootmeth may itself scan devices and the
network, so running it first can hold up the boot significantly for
boards not actually relying on EFI-bootmgr to boot.
This series introduces a new field in global bootmeths which indicates
the priority, using the same scheme as is used with bootdev hunters.
Thus it is possible to insert the EFI-bootmgr bootmeth just before the
hunter for network bootdevs is invoked.
Despite the simplicity of the concept and the relatively small series,
this is a fairly significant enhancement. It is also quite tricky to
implement, largely due to the way the original code was written, with
global bootmeths being a small, size-optimised add-on to the original
bootstd implementation.
For now we only allow each global bootmeth to run at most once, but this
implementation is written in a way that we could relax that if needed.
Then the bootmeth itself could decide whether to run at any particular
point in the bootflow iteration.
Simon Glass [Wed, 15 Oct 2025 15:44:14 +0000 (16:44 +0100)]
boot: Run the EFI bootmgr just before network devices
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.
Simon Glass [Wed, 15 Oct 2025 15:44:13 +0000 (16:44 +0100)]
boot: Run global bootmeths after all bootdevs are exhausted
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.
Simon Glass [Wed, 15 Oct 2025 15:44:12 +0000 (16:44 +0100)]
boot: Don't change the method count after global bootmeths
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.
Simon Glass [Wed, 15 Oct 2025 15:44:11 +0000 (16:44 +0100)]
boot: Implement a priority for global bootmeths
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.
projects / thirdparty / u-boot.git / log
