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>
The CMD_EFIDEBUG option enables debugging so it is reasonable to assume
that all effects should be made to decode the dreaded UUIDs favoured by
UEFI.
Update the table to show them all when CONFIG_CMD_EFIDEBUG is enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Once the ACPI tables have been set up, record their address so that it is
possible to list them with 'acpi list'.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add a bit more detail so it is clear that multiple devices are
supported, but only one per driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some files have an associated address. Show this with the 'qfw list'
command so that it is possible to dump the data.
Note that the reference to 'md' is for the md.rst file, not a
markdown file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
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>
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>
Rather than silently hanging, show an error first. This can happen when
there is something wrong with the video BIOS.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Use an assembler implementation as is done for i386, so that the results
are equivalent for i386 and x86_64.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This is useful information so show it with the bdinfo command.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add a comment for this function in the header.
Change the function (and the one after) to use __noreturn to keep
checkpatch happy.
Add docs to board_init_f_r() while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The ll_boot_init() check handles the EFI case so we don't need the rest
of the code. Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This is always zero in the source tree, so drop it.
While we are here, add a comment to _X86EMU_env since the symbol is
actually defined twice, which can cause confusion when building.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
Add documention for the x86 'mtrr' command.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Move MTRR-listing code into a common file so it can be used from SPL.
Update the 'mtrr' command to call it.
Use this in SPL just before adjusting the MTRRs, so we can see the state
set up by the board. Only show it when debug is enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add ms so it is easier to search for tables in memory.
Expand the command-line and print buffers so that we can deal with the
very long ChromeOS command lines. (typically 700 characters).
Enable BOOTSTD_FULL to get the full set of standard-boot options.
Replace the existing manual script with 'bootflow scan', since it can
find and boot the OS.
Finally, expand the malloc() space so we can read large kernels into a
bootflow.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Drop IDE and add NVME since this is more common now.
Add ms so it is easier to search for tables in memory.
Expand the command-line and print buffers so that we can deal with the
very long ChromeOS command lines. (typically 700 characters).
Enable BOOTSTD_FULL to get the full set up standard-boot options.
Finally, expand the malloc() space so we can read large kernels into a
bootflow.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
It is possible to boot x86-based ChromeOS machines by parsing a table and
locating the kernel and command line. Add a bootmeth for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Allow reading the command line from a zimage, so that it can be recorded
in the bootflow.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a direct interface to booting a zimage, so that bootstd can call it
without going through the command-line interface.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
Drop use of the distro boot script and use standard boot instead.
Moving to a text-based environment would be desirable also, but requires
additional work.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
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>
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>
It is useful to see the detailed setting of the serial port, e.g. to
allow setting up earlycon or console for Linux. Add this output to the
'bdinfo' command.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in 20230716033929.253357-2-sjg@chromium.org]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
On x86 boards Linux uses a block of binary data to provide information
about the command line, memory map, etc. Provide a way to store this in
the bootflow so it can be passed on to the OS.
No attempt is made to generalise the code, since other archs don't need
this information. The field is present always, though, to avoid needing
accessors or #ifdefs when building code on other archs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The "bootargs" environment variable is used to set the command-line
arguments to pass to the OS. Use this same mechanism with bootstd as well.
When the variable is updated, it is written to the current bootflow. When
the current bootflow is updated, the environment variable is updated too.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some operating systems have a command line which can be adjusted before
booting. Store this in the bootflow so it can be controlled within
U-Boot.
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>
It seems better to call this a 'bootdev' since this is name used in the
documentation. The older 'Bootdevice' name is no-longer used and may cause
confusion with the 'bootdevice' environment variable.
Update throughout to use bootdev.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Many tests don't actually use the devicetree at all so there is no point
in running the tests both with livetree and flat tree. Check for this and
skip the flat tree test in that case.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
To enforce anti-rollback to any older version, dtb must be
always update manually. This should be described in the
documentation.
This commit also adds the recommendation that secure system should not
enable the fdt command because lowest-supported-version
property in device tree can be changed by fdt command.
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
The main README file is the wrong place to document how different terminal
emulations can be used to access the U-Boot serial console. C-Kermit which
requires a configuration file or several commands to access the U-Boot
console may not be the preferred choice for newcomers. The provided wiki
link is invalid.
The man-pages for loadb and loads already show how to use the commands with
picocom.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
We recently fixed a few issues wrt to controller handling. Add a few
test cases to cover the new code.
- return EFI_DEVICE_ERROR the first time the protocol interface of
the controller is uninstalled, after all the children have been
disconnected. This should make the drivers reconnect
- add tests to verify controllers are reconnected when uninstalling a
protocol fails
- add tests to make sure EFI_NOT_FOUND is returned if a non existent
interface is being removed
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Up to now we did not check the return value of DisconnectController.
A previous patch is fixing that taking into account what happened during
the controller disconnect. But that check takes place before our code
is trying to figure out if the interface exists to begin with. In case a
driver is not allowed to unbind -- e.g returning EFI_DEVICE_ERROR, we
will end up returning that error instead of EFI_NOT_FOUND.
Add an extra check on the top of the function to make sure the protocol
interface exists before trying to disconnect any drivers
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
efi_uninstall_protocol() calls efi_disconnect_all_drivers() but never
checks the return value. Instead it tries to identify protocols that
are still open after closing the ones that were opened with
EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL, EFI_OPEN_PROTOCOL_GET_PROTOCOL
and EFI_OPEN_PROTOCOL_TEST_PROTOCOL.
Instead of doing that, check the return value early and exit if
disconnecting the drivers failed. Also reconnect all the drivers of
a handle if protocols are still found on the handle after disconnecting
controllers and closing the remaining protocols.
While at it fix a memory leak and properly free the opened protocol
information when closing a protocol.
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
efi_disconnect_controller() doesn't reconnect drivers in case of
failure. Reconnect the disconnected drivers properly
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
The boot variables automatically generated for removable medias
should be with short form of device path without device nodes.
This is a requirement for the case that a removable media is
plugged into a different port but is still able to work with the
existing boot variables.
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Correct the return code for out-of-memory and no boot option found
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Rename and move bootorder and bootoption apis from cmd to lib
for re-use between eficonfig and bootmgr
Fix 'unexpected indentation' when 'make htmldocs' after functions
are moved
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Flushing kernel image after decompression was taking 113 milliseconds
with U-boot 2022.10. With U-boot 2023.01 and 2023.04, flushing
the same amount of memory takes approx 1.5 seconds. With
U-boot 2023.07-rc6, it takes 6.5 seconds.
powerpc flush_cache() function used to call WATCHDOG_RESET() after
flushing every cacheline. At that time WATCHDOG_RESET() was light
so the operation was almost seamless.
But commit 29caf9305b ("cyclic: Use schedule() instead of
WATCHDOG_RESET()") replaced WATCHDOG_RESET() by schedule() and that
started to hurt with U-boot 2022.10.
And in U-boot 2023.07-rc6 that's even worse after
commit 26e8ebcd7c ("watchdog: mpc8xxx: Make it generic").
In the meantime commit 729c1fe656 ("powerpc: introduce
CONFIG_CACHE_FLUSH_WATCHDOG_THRESHOLD") gives us the opportinity to
only call schedule() every given chunk of data instead of every
cacheline. As explained in that commit there is no point in pinging
the watchdog after every cacheline flush, so lets define a sensible
default chunk size of 4k which matches to size of a page on most
powerpc platforms.
With that new default threshold, the culprit flushing performed after
kernel image decompression now takes 85 milliseconds on a powerpc 8xx.
Fixes: 29caf9305b ("cyclic: Use schedule() instead of WATCHDOG_RESET()")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Uncompressing a 1.7Mbytes FIT image on U-boot 2023.04 takes
approx 7s on a powerpc 8xx.
The same on U-boot 2023.07-rc6 takes approx 28s unless watchdog
is disabled.
During that decompression, LzmaDec_DecodeReal() calls schedule
1.6 million times, that is every 4µs in average.
In the past it used to be a call to WATCHDOG_RESET() which was
just calling hw_watchdog_reset().
But the combination of commit 29caf9305b ("cyclic: Use schedule()
instead of WATCHDOG_RESET()") and commit 26e8ebcd7c ("watchdog:
mpc8xxx: Make it generic") results in an heavier processing.
However, there is absolutely no point in calling schedule() that
often.
By moving and keeping only one call to schedule() in the main
loop the number of calls is reduced to 1.2 million which is still
too much. So add logic to only call schedule every 1024 times.
That leads to a call to schedule approx every 6ms which is still
far enough to entertain the watchdog which has a 1s timeout on
powerpc 8xx.
powerpc 8xx being one of the slowest targets we have today in
U-boot, and most other watchdogs having a timeout of one minutes
instead of one second like the 8xx, this fix should not have
negative impact on other targets.
Fixes: 29caf9305b ("cyclic: Use schedule() instead of WATCHDOG_RESET()")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
Instead of using the hard-coded value of 0x1f, use 'TASK_TAG'
macro instead to construct the ucd_req_ptr->header.dword_0
This is in sync with what the Linux UFS driver does, i.e.
set the byte0 equal to TASK_TAG (see [1]).
Setting it to a fixed value of 0x1f is wrong as we define
TASK_TAG as 0 inside u-boot ufs framework. So, instead we
should use the macro value directly.
[1]. https://github.com/torvalds/linux/blob/master/drivers/ufs/core/ufshcd.c#L2705
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
