Simon Glass [Tue, 18 Jul 2023 13:23:59 +0000 (07:23 -0600)]
binman: Provide a way to specify the fdt-list directly
Sometimes multiple boards are built with binman and it is useful to
specify a different FDT list for each. At present this is not possible
without providing multiple values of the of-list entryarg (which is not
supported in the U-Boot build system).
Allow a fit,fdt-list-val string-list property to be used instead.
Marek Vasut [Tue, 18 Jul 2023 13:23:58 +0000 (07:23 -0600)]
binman: Convert mkimage to Entry_section
This is needed to handle mkimage with inner section located itself in a
section.
Signed-off-by: Marek Vasut <marex@denx.de>
Use BuildSectionData() instead of ObtainContents(), add tests and a few
other minor fixes: Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass [Tue, 18 Jul 2023 13:23:55 +0000 (07:23 -0600)]
stm32mp15: Avoid writing symbols in SPL
These boards use SPL in a mkimage entry and apparently access the symbol
containing the image position of U-Boot, but put U-Boot in another
image. This means that binman is unable to fill in the symbol correctly
in the SPL binary.
This doesn't matter at present since mkimage doesn't support symbol
writing. But with the upcoming conversion to a section, it will. So add
a property to disable symbol writing.
tools: Fix package discovery in pyproject.toml of u_boot_pylib.
When building from source, setuptools would complain about not finding
package via its auto-discovery mechanism. Manually specify how to
locate the files, relative to the package's directory.
* tools/u_boot_pylib/pyproject.toml: New tool.setuptools.packages.find
section.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
The loads and saves commands crash on the sandbox due to illegal memory
access.
For command line arguments the sandbox uses a virtual address space which
does not equal the addresses of the memory allocated with memmap(). Add the
missing address translations for the loads and saves commands.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Sergei Antonov [Mon, 12 Jun 2023 21:19:04 +0000 (00:19 +0300)]
sandbox: fix a compilation error
With sandbox and sandbox64 configurations:
In file included from .../u-boot/include/test/test.h:156,
from .../u-boot/include/test/lib.h:9,
from .../u-boot/test/lib/test_crc8.c:8:
.../u-boot/arch/sandbox/include/asm/test.h: In function ‘sandbox_sdl_set_bpp’:
.../u-boot/arch/sandbox/include/asm/test.h:323:17: error: ‘ENOSYS’ undeclared (first use in this function)
323 | return -ENOSYS;
| ^~~~~~
Per Tom Rini's suggestion:
move that function prototype over to arch/sandbox/include/asm/sdl.h
and make test/dm/video.c include <asm/sdl.h>
Cc: Simon Glass <sjg@chromium.org> Suggested-by: Tom Rini <trini@konsulko.com> Signed-off-by: Sergei Antonov <saproj@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
John Keeping [Thu, 1 Jun 2023 14:11:19 +0000 (15:11 +0100)]
core: read: fix dev_read_addr_size()
The behaviour of dev_read_addr_size() is surprising as it does not
handle #address-cells and #size-cells but instead hardcodes the values
based on sizeof(fdt_addr_t).
This is different from dev_read_addr_size_index() and
dev_read_addr_size_name() both of which do read the cell sizes from the
device tree.
Since dev_read_addr_size() is only used by a single driver and this
driver is broken when CONFIG_FDT_64BIT does not match the address size
in the device tree, fix the function to behave like all of the other
similarly named functions. Drop the property name argument as the only
caller passes "reg" and this is the expected property name matching the
other similarly named functions.
Signed-off-by: John Keeping <john@metanate.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> # chromebook_jerry Tested-by: Simon Glass <sjg@chromium.org> # chromebook_bob
Eugen Hristev [Thu, 4 May 2023 12:22:21 +0000 (15:22 +0300)]
dm: core: of_access: fix return value in of_property_match_string
of_property_match_string calls of_find_property to search for the
string property.
If the device node does not exist, of_find_property returns NULL, and
of_property_match_string returns -EINVAL, which is correct.
However, if the device node exists, but the property is not found,
of_find_property still returns NULL, but it will place -FDT_ERR_NOTFOUND
in the *lenp variable.
of_property_match_string does not use the lenp parameter, thus this error
case is being lost, and treated as if the node is NULL, and returns
-EINVAL, which is incorrect.
The callers of of_property_match_string treat the error differently if
the return value is -EINVAL or -ENOENT, e.g. in dwc3 driver:
ret = generic_phy_get_by_name(dev, "usb3-phy", &phy);
if (!ret) {
ret = generic_phy_init(&phy);
if (ret)
return ret;
} else if (ret != -ENOENT && ret != -ENODATA) {
debug("could not get phy (err %d)\n", ret);
return ret;
} else {
phy.dev = NULL;
}
So the caller drivers will just consider the property missing if -ENOENT
is returned, versus the case of -EINVAL, which means something else.
To fix this situation, changed the code to call the of_find_property
with the right third argument to catch this error code and treat it
accordingly.
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Tom Rini [Thu, 20 Jul 2023 14:19:04 +0000 (10:19 -0400)]
Merge tag 'efi-2023-10-rc1-2' of https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request efi-2023-10-rc1-2
UEFI:
* test: avoid function name 'setup' in capsule tests to not treat it as
a fixture
* ensure that device paths for USB block devices are unique
* enable having multiple EFI_LOADER block devices
* use InstallMultipleProtocolInterfaces() in TCG protocol implementation to
increase UEFI compliance
are seen. This is due to creating non-unique device paths. To uniquely
identify devices we must provide path nodes for all devices on the path
from the root device.
Add support for generating device path nodes for all uclasses.
Reported-by: Suniel Mahesh <sunil@amarulasolutions.com> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
efi_loader: fix dp_fill() for BLKMAP, HOST, VIRTIO
Do not assume that the preceding device path contains a single VenHW node.
Instead use the return value of dp_fill() which provides the address of the
next node.
Fixes: 23ad52fff4da ("efi_loader: device_path: support Sandbox's "host" devices") Fixes: 19ecced71cfb ("efi_loader: device path for virtio block devices") Fixes: 272ec6b45304 ("efi_loader: device_path: support blkmap devices") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Masahisa Kojima [Mon, 3 Jul 2023 06:08:45 +0000 (15:08 +0900)]
efi_driver: fix duplicate efiblk#0 issue
The devnum value of the blk_desc structure starts from 0,
current efi_bl_create_block_device() function creates
two "efiblk#0" devices for the cases that blk_find_max_devnum()
returns -ENODEV and blk_find_max_devnum() returns 0(one device
found in this case).
This commit uses blk_next_free_devnum() instead of blk_find_max_devnum().
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Ilias Apalodimas [Mon, 19 Jun 2023 11:14:03 +0000 (14:14 +0300)]
efi_loader: make efi_remove_protocol() static
A previous patch is removing the last consumer of efi_remove_protocol().
Switch that to static and treat it as an internal API in order to force
users install and remove protocols with the appropriate EFI functions.
It's worth noting that we still have files using efi_add_protocol(). We
should convert all these to efi_install_multiple_protocol_interfaces()
and treat efi_add_protocol() in a similar manner
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Ilias Apalodimas [Mon, 19 Jun 2023 11:14:02 +0000 (14:14 +0300)]
efi_loader: use efi_install_multiple_protocol_interfaces()
The TCG2 protocol currently adds and removes protocols with
efi_(add/remove)_protocol().
Removing protocols with efi_remove_protocol() might prove
problematic since it doesn't call DisconnectController() when
uninstalling the protocol and does not comply with the UEFI specification.
It's also beneficial for readability to have protocol installations and
removals in pairs -- IOW when efi_install_multiple_protocol_interfaces()
is called, efi_uninstall_multiple_protocol_interfaces() should be used to
remove it. So let's swap the efi_add_protocol() as well.
Tom Rini [Tue, 18 Jul 2023 13:55:32 +0000 (09:55 -0400)]
Merge branch '2023-07-17-assorted-updates'
- Merge in some Kconfig dependencies fixes, typo fixes, erofs update,
shell portability fix, an env save fix, better mbr+gpt support, and
some android A/B enhancements.
Set MMC clock when reverting to safe bus mode and speed
in case current MMC mode fails. Otherwise, trying out
the other modes may fail as well.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
[hp: fallback to legacy_speed] Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
Hai Pham [Mon, 19 Jun 2023 22:38:25 +0000 (00:38 +0200)]
mmc: renesas-sdhi: Send stop when MMC tuning command fails
When tuning command (CMD21) fails with command error, call
mmc_send_stop_transmission() to send stop command (CMD12).
Reviewed-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Add dev_dbg() message in case tuning abort fails
Move tuning opcode check from mmc_abort_tuning()] Reviewed-by: Peng Fan <peng.fan@nxp.com>
Hai Pham [Mon, 19 Jun 2023 22:38:24 +0000 (00:38 +0200)]
mmc: Introduce mmc_send_stop_transmission()
If a tuning command times out, the card could still be processing it,
which will cause problems for recovery. The eMMC specification section
6.6 Data transfer mode (cont’d) claims that CMD12 can be used to stop
CMD21:
"
The relationship between the various data transfer modes is summarized (see Figure 27):
- All data read commands can be aborted any time by the stop command (CMD12).
The data transfer will terminate and the Device will return to the Transfer State.
The read commands are: ... send tuning block (CMD21) ....
"
Add a function that does that.
Based on Linux commit [1] and [2].
[1] e711f0309109 ("mmc: mmc: Introduce mmc_abort_tuning()")
[2] 21adc2e45f4e ("mmc: Improve function name when aborting a tuning
cmd")
Reviewed-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Update commit message, quote relevant part of the specification.
Rename to mmc_send_stop_transmission().
Remove tuning opcode check, this is controller driver specific.
Deduplicate part of mmc_read_blocks() using this function.] Reviewed-by: Peng Fan <peng.fan@nxp.com>
Marek Vasut [Mon, 19 Jun 2023 22:38:23 +0000 (00:38 +0200)]
mmc: Fix MMC_CMD_STOP_TRANSMISSION response type and add comment
For MMC/eMMC, the MMC_CMD_STOP_TRANSMISSION response is R1 for read
transfers and R1b for write transfers per JEDEC Standard No. 84-B51
Page 126 . The response is R1b unconditionally per Physical Layer
Simplified Specification Version 9.00.
Correct the response type and add a comment about it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Peng Fan <peng.fan@nxp.com>
When CONFIG_SYS_REDUNDAND_ENVIRONMENT is enabled, by default env is
getting saved to redundant environment irrespective of primary env is
present or not.
It means even if primary and redundant environment are not present, by
default, env is getting stored to redundant environment. Even if primary
env is present, it is choosing to store in redudndant env.
Ideally it should look for primary env and choose to store in primary env
if it is present. If both primary and redundant env are not present then
it should save in to primary env area.
Fix the issue by making env_valid = ENV_INVALID when both the
environments are not present.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Some devices keep 2 copies of the bootloader_message in the misc
partition and write each in sequence when updating. This ensures that
there is always one valid copy of the bootloader_message. Teach u-boot
to optionally try a backup bootloader_message from a specified offset if
the primary one fails its CRC check.
Forces the DOS partition type driver to be used when verifying the MBR.
This is particularly useful when using a hybrid MBR & GPT layout as
otherwise MBR verification would mostly likely fail since the GPT
partitions will be returned, even if the MBR is actually valid.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Adds a test suite to ensure that part_get_info_by_type works correctly
by creating a hybrid GPT/MBR partition table and reading both.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
[trini: Add this on the other sandbox configs] Signedd-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
disk: part: Add API to get partitions with specific driver
Adds part_driver_get_type() API which can be used to force a specific
driver to be used when getting partition information instead of relying
on auto detection.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
d94d9844bc ("dm: part: Update test to use mmc2") attempted to make the
test use mmc2, but the change was incomplete in that it didn't also
change the strings that reference a specific partition. Fix these so
that the test passes again
tests: Fix exception when cleaning up skipped test
If test_cat and test_xxd cannot create the required file, the test will
be skipped, but this would result in an exception being raised in the
finally block because the file didn't exist to be cleaned up. This
caused the test to be marked as failed instead of skipped.
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Joshua Watt [Fri, 23 Jun 2023 22:05:48 +0000 (17:05 -0500)]
android_ab: Add option to skip decrementing tries
It is is sometimes desired to be able to skip decrementing the number of
tries remaining in an Android A/B boot, and instead just check which
slot will be tried later. This can commonly be be the case for platforms
that want to A/B u-boot itself, but are required to boot from a FAT MBR
partition. In these cases, u-boot must do an early check that the MBR
points to the correct A/B boot partition, and if not rewrite the MBR to
point to the correct one and reboot. Decrementing the try count in this
case is not desired because it means that each u-boot might constantly
ping-pong overwriting the MBR and rebooting until all the retries are
used up.
Jonas Karlman [Tue, 11 Jul 2023 22:37:30 +0000 (22:37 +0000)]
disk: Use BOOT_DEFAULTS instead of DISTRO_DEFAULTS
Set default y based on common BOOT_DEFAULTS instead of DISTRO_DEFAULTS.
No change is intended, affected options is already implied for DISTRO
and BOOTSTD due to BOOT_DEFAULTS imply DOS_PARTITION (USB_STORAGE),
EFI_PARTITION and ISO_PARTITION.
Fixes: a0c739c184ca ("boot: Create a common BOOT_DEFAULTS for distro and bootstd") Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Simon Glass <sjg@chromium.org>
Marek Vasut [Tue, 11 Jul 2023 12:15:53 +0000 (14:15 +0200)]
Makefile: Add missing quotes around sort --field-separator
Busybox sort does not handle --field-separator== , replace this
with --field-separator='=' for maximum compatibility.
Fixes: cc5a490cf465 ("Makefile: Sort u-boot-initial-env output") Reported-by: Milan P. Stanić <mps@arvanta.net> Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Simon Glass [Sun, 16 Jul 2023 03:39:17 +0000 (21:39 -0600)]
efi: Use the installed ACPI tables
U-Boot sets up the ACPI tables during startup. Rather than creating a
new set, install the existing ones. Create a memory-map record to cover
the tables.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:13 +0000 (21:39 -0600)]
x86: Make sure that the LPC is active before SDRAM init
Some boards need to access GPIOs to determine which SDRAM is fitted to the
board, for example chromebook_link. Probe this device (if it exists) to
make sure that this works as expected.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:08 +0000 (21:39 -0600)]
x86: Enable useful options for qemu-86_64
This build can be used to boot standard distro builds, since these are
mostly 64-bit these days. Enable some more options, so that all possible
EFI UUIDs are decoded, we get a proper printf() in SPL, can search
memory for tables, support the full set of standard-boot features, have
full logging and can boot from CDROM media.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:04 +0000 (21:39 -0600)]
x86: Enable display for QEMU 64-bit
Enable the various options needed for display to work on the qemu-x86_64
board. This includes expanding the available malloc() memory in SPL,
since the PCI bus must be enumerated in order to find the video device.
It also includes enabling a bloblist, so that the video parameters can be
passed. This is placed at address 10000 but is not needed after U-Boot
proper reads the information there.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:02 +0000 (21:39 -0600)]
pci: Adjust video BIOS debugging to be SPL-friendly
A hex value is expected for the VGA mode. Add a 0x prefix, since the #
construct is not supported in SPL. We don't want to add it, due to
code-size constraints.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:01 +0000 (21:39 -0600)]
x86: Init video in SPL if enabled
When video is required in SPL, set this up ready for use. Ignore any
problems since it may be that video is not actually available and we
still want to continue on to U-Boot proper in that case.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:39:00 +0000 (21:39 -0600)]
x86: Ensure SPL banner is only shown once
Print the banner in SPL init only if the spl_board_init() function isn't
enabled. The spl_board_init() function is in the same file, but is called
later, by board_init_r().
This avoids printing two banners, which causes tests to fail.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:58 +0000 (21:38 -0600)]
x86: Allow video-BIOS code to be built for SPL
With qemu-x86_64 we need to run the video BIOS while in 32-bit mode, i.e.
SPL. Add a Kconfig option for this, adjust the Makefile rules and use
CONFIG_IS_ENABLED() where needed.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:57 +0000 (21:38 -0600)]
pci: Tidy up logging and reporting for video BIOS
When running the ROM the code is not very helpful when something goes
wrong. Add a little more debugging and some logging of return values to
improve this.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:55 +0000 (21:38 -0600)]
pci: Support autoconfig in SPL
Allow PCI autoconfig to be handled in SPL, so that we can set it up
correctly for boards which need to do this before U-Boot proper. This
includes qemu-x64_64 which needs to set up the video device while in
32-bit mode.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:53 +0000 (21:38 -0600)]
bdinfo: Show the malloc base with the bdinfo command
It is useful to see the base of the malloc region. This is visible when
debugging but not in normal usage.
Add it to the global data so that it can be shown.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Nikhil M Jain <n-jain1@ti.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Nikhil M Jain <n-jain1@ti.com>
Simon Glass [Sun, 16 Jul 2023 03:38:52 +0000 (21:38 -0600)]
x86: Improve the trampoline in 64-bit mode
At present this leaves the stack at the pre-relocation value. This is not
ideal since we want to have U-Boot running entirely from the top of
memory.
In addition, the new global_data pointer is not actually used, since
the global_data pointer itself is relocated, then the pre-relocation value
is changed, so the effective value (after relocation) does not update.
Adjust the implementation to follow the 32-bit code more closely, with a
trampoline function which is passed the new stack and global_data pointer.
This ensures that the correct values come through even when relocating.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:47 +0000 (21:38 -0600)]
part: Allow setting the partition-table type
Some devices have multiple partition types available on the same media.
It is sometimes useful to see these to check that everything is working
correctly.
Provide a way to manually set the partition-table type, avoiding the
auto-detection process.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:46 +0000 (21:38 -0600)]
bdinfo: Show the RAM top and approximate stack pointer
These are useful pieces of information when debugging. The RAM top shows
where U-Boot started allocating memory from, before it relocated. The
stack pointer can be checked to ensure it is in the correct region.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Nikhil M Jain <n-jain1@ti.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Nikhil M Jain <n-jain1@ti.com>
Simon Glass [Sun, 16 Jul 2023 03:38:45 +0000 (21:38 -0600)]
acpi: Add a comment to set the acpi tables
Sometimes a previous bootloader has written ACPI tables. It is useful to
be able to find and list these. Add an 'acpi set' command to set the
address for these tables.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Sun, 16 Jul 2023 03:38:38 +0000 (21:38 -0600)]
bios_emulator: Add Kconfig and adjust Makefile for SPL
The Kconfig for this is currently inside a particular board. Move it into
the correct place and allow use in SPL, so that video can be used there
if needed.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Wed, 12 Jul 2023 15:04:42 +0000 (09:04 -0600)]
bootstd: Support automatically setting Linux parameters
Some Linux parameters can be set automatically by U-Boot, if it knows the
device being used. For example, since U-Boot knows the serial console
being used, it can add parameters for earlycon and console.
Add support for this.
Note that this is an experimental feature and we will see how useful it
turns out to be. It is very handy for ChromeOS, since otherwise it is very
difficult to manually determine the UART address or port number,
particularly in a script.
Provide an example of how this is used with ChromeOS.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Wed, 12 Jul 2023 15:04:40 +0000 (09:04 -0600)]
x86: qemu: Create a little more room for U-Boot
We want to enable some of the more interesting bootstd features. Move SPL
up to create some room for the larger U-Boot binary. Also disable
microcode since this is not needed
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Wed, 12 Jul 2023 15:04:39 +0000 (09:04 -0600)]
bootstd: Add support for updating elements of the cmdline
Add a bootflow command to update the command line more easily. This allows
changing a particular parameter rather than editing a very long strings.
It is also easier to handle with scripting.
The new 'bootflow cmdline' command allows getting and setting single
parameters.
Fix up the example output while we are here, since there are a few new
items.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Simon Glass [Wed, 12 Jul 2023 15:04:38 +0000 (09:04 -0600)]
bootstd: Add a function to update a command line
The Linux command line consists of a number of words with optional values.
At present U-Boot allows this to be changed using the bootargs environment
variable.
But this is quite painful, since the command line can be very long.
Add a function which can adjust a single field in the command line, so
that it is easier to make changes before booting.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
projects / u-boot.git / log