| Age | Commit message (Collapse) | Author |
|---|
|
Since commit c2fd0ca1a822
("watchdog: Integrate watchdog triggering into the cyclic framework")
GD_FLG_WDT_READY has become write-only. This patch now removes this
flag completely.
The vacant spot in gd_flags is filled with the newly introduced
GD_FLG_CYCLIC_RUNNING flag.
Suggested-by: Rasmus Villemoes <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>
|
|
Correct GD_FLG_CYCLIC_RUNNING documentation to match Sphinx style.
Fixes: d7de5ef62935 ("cyclic: use a flag in gd->flags for recursion protection")
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
|
|
Currently, we must call cyclic_init() at some point before
cyclic_register() becomes possible. That turns out to be somewhat
awkward, especially with SPL, and has resulted in a watchdog callback
not being registered, thus causing the board to prematurely reset.
We already rely on gd->cyclic reliably being set to NULL by the asm
code that clears all of gd. Now that the cyclic list is a hlist, and
thus an empty list is represented by a NULL head pointer, and struct
cyclic_drv has no other members, we can just as well drop a level of
indirection and put the hlist_head directly in struct
global_data. This doesn't increase the size of struct global_data,
gets rid of an early malloc(), and generates slightly smaller code.
But primarily, this avoids having to call cyclic_init() early; the cyclic
infrastructure is simply ready to register callbacks as soon as we
enter C code.
We can still end up with schedule() being called from asm very early,
so we still need to check that gd itself has been properly initialized
[*], but once it has, gd->cyclic_list is perfectly fine to access, and
will just be an empty list.
As for cyclic_uninit(), it was never really the opposite of
cyclic_init() since it didn't free the struct cyclic_drv nor set
gd->cyclic to NULL. Rename it to cyclic_unregister_all() and use that
in test/, and also insert a call at the end of the board_init_f
sequence so that gd->cyclic_list is a fresh empty list before we enter
board_init_r().
A small piece of ugliness is that I had to add a cast in
cyclic_get_list() to silence a "discards 'volatile' qualifier"
warning, but that is completely equivalent to the existing handling of
the uclass_root_s list_head member.
[*] I'm not really sure where we guarantee that the register used for
gd contains 0 until it gets explicitly initialized, but that must be
the case, otherwise testing gd for being NULL would not make much sense.
Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Tested-by: Tim Harvey <[email protected]> # imx8mm-venice-*
|
|
As a preparation for future patches, use a flag in gd->flags rather
than a separate member in (the singleton) struct cyclic_drv to keep
track of whether we're already inside cyclic_run().
Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Tested-by: Stefan Roese <[email protected]>
Tested-by: Tim Harvey <[email protected]> # imx8mm-venice-*
|
|
Now that all the old code is gone, rename this option. Driver model
migration is now complete.
Signed-off-by: Simon Glass <[email protected]>
|
|
These rely on the old LCD implementation which is to be removed. Drop it
all.
Signed-off-by: Simon Glass <[email protected]>
|
|
If the device tree changes during a test and we cannot restore it, mark
it as such so that future tests which need the live tree are skipped.
Signed-off-by: Simon Glass <[email protected]>
|
|
Signed-off-by: Tom Rini <[email protected]>
|
|
This allows to test if a pin's label if displayed using gpio_get_status()
when this pin is configured in alternate function.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
|
|
Add the basic infrastructure to periodically execute code, e.g. all
100ms. Examples for such functions might be LED blinking etc. The
functions that are hooked into this cyclic list should be small timewise
as otherwise the execution of the other code that relies on a high
frequent polling (e.g. UART rx char ready check) might be delayed too
much. This patch also adds the Kconfig option
CONFIG_CYCLIC_MAX_CPU_TIME_US, which configures the max allowed time
for such a cyclic function. If it's execution time exceeds this time,
this cyclic function will get removed from the cyclic list.
How is this cyclic functionality executed?
The following patch integrates the main function responsible for
calling all registered cyclic functions cyclic_run() into the
common WATCHDOG_RESET macro. This guarantees that cyclic_run() is
executed very often, which is necessary for the cyclic functions to
get scheduled and executed at their configured periods.
This cyclic infrastructure will be used by a board specific function on
the NIC23 MIPS Octeon board, which needs to check periodically, if a
PCIe FLR has occurred.
Signed-off-by: Stefan Roese <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
I do not have any non-serial output devices, so a
print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL)
does nothing for me.
However, I was manually inspected the pre-console buffer using md.b,
and I noticed that the early part of it was repeated. The reason is
that the first call of print_pre_console_buffer(), from
console_init_f(), ends up invoking puts() with the contents of the
buffer at that point, and puts() at that point ends up in the else
branch of
if (gd->flags & GD_FLG_DEVINIT) {
/* Send to the standard output */
fputs(stdout, s);
} else {
/* Send directly to the handler */
pre_console_puts(s);
serial_puts(s);
}
so indeed the contents is added again.
That can be somewhat confusing (both when reading the buffer manually,
but also if it did actually come out on some device). So disable all
use of the pre-console buffer while print_pre_console_buffer() is
emitting it.
Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
The bi_enetaddr field in struct bd_info is write-only; nothing ever
reads back the value.
Moreover, the value we write is more or less random, and certainly not
something one can rely on: If the board has a writable environment and
the mac address has been stored there, we fetch that value. But if the
board doesn't, this code runs before initr_net() -> eth_initialize(),
and thus before the code in eth-uclass which fetches MAC addresses
from eeprom, fuses or whatnot and populates the (run-time) environment
with those values.
Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
|
|
https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request for efi-2022-07-rc1
Documentation:
* Describe how enable DM_SERIAL for a board
UEFI
* Preparatory patches for better integration of DM and UEFI
* Use sysreset after capsule updates instead of do_reset
* Allow to disable persisting non-volatile variables
|
|
With dm-tag feature, any U-Boot subsystem is allowed to associate
arbitrary number of data with a particular udevice. This can been
see as expanding "struct udevice" without modifying the definition.
As a first user, UEFI subsystem makes use of tags to associate
an efi_disk object with a block device.
Signed-off-by: AKASHI Takahiro <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
Add support for the upstream gpio-line-names property already described
in the common GPIO binding document[1]. The ability to search for a line
name allows boards to lift the implementation of common GPIO behaviours
away from specific line indexes on a GPIO controller.
[1] https://github.com/devicetree-org/dt-schema/blob/3c35bfee83c2e38e2ae7af5f83eb89ca94a521e8/dtschema/schemas/gpio/gpio.yaml#L17
Signed-off-by: Andrew Jeffery <[email protected]>
|
|
Drop the Kconfigs which are not used and all references to them. In
particular, this drops CONFIG_VIDEO to avoid confusion and allow us to
eventually rename CONFIG_DM_VIDEO to CONFIG_VIDEO.
Also drop the prototype for video_get_info_str() which is no-longer used.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Jason Liu <[email protected]>
|
|
Add a way to create and dispatch events without needing to allocate
memory. Also add a way to 'spy' on events, thus allowing 'hooks' to be
created.
Use a linker list for static events, which we can use to replace functions
like arch_cpu_init_f(). Allow an EVENT_DEBUG option which makes it
easier to see what is going on at runtime, but uses more code space.
Dynamic events allow the creation of a spy at runtime. This is not always
necessary, but can be enabled with EVENT_DYNAMIC if needed.
A 'test' event is the only option for now.
Signed-off-by: Simon Glass <[email protected]>
|
|
Remove some code, primarily CPM2 related, that is now unused since the
removal of MPC8540/60ADS.
Fixes 3913191c8a6b ("powerpc: mpc8540ads: mpc8560ads: Drop support for MPC8540/60ADS")
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
Allow this to be used on any arch. Also convert to using macros so that
we can check the CONFIG option in C code.
Signed-off-by: Simon Glass <[email protected]>
|
|
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <[email protected]>
|
|
Keep track of where the devicetree came from, so we can report this later.
Signed-off-by: Simon Glass <[email protected]>
|
|
Refactor the code to drop the #ifdefs for this feature.
Signed-off-by: Simon Glass <[email protected]>
|
|
The generic GPIO flags binding is shared across many drivers, some of
which need their own xlate function. Factor out the flag translation
code from gpio_xlate_offs_flags so it does not need to be duplicated.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
https://source.denx.de/u-boot/custodians/u-boot-dm into next
Various of-platdata improvements, including CONFIG_OF_REAL
|
|
Prepare v2021.10-rc5
|
|
Add support for accessing GPIOs using of-plata. This uses the same
mechanism as for clocks, but allows use of the xlate() method so that
the driver can interpret the parameters.
Update the condition for GPIO_HOG so that it is not built into SPL,
since it needs SPL_OF_REAL which is not enabled in sandbox_spl.
Signed-off-by: Simon Glass <[email protected]>
|
|
This was unfortunately applied despite much discussion about it beiong
the wrong way to implement this feature.
Revert it before too many other things are built on top of it.
This reverts commit ddf67daac39de76d2697d587148f4c2cb768f492.
Signed-off-by: Simon Glass <[email protected]>
|
|
A board can have and make use of more than one watchdog device, say
one built into the SOC and an external gpio-petted one. Having
wdt-uclass only handle the first is both a little arbitrary and
unexpected.
So change initr_watchdog() so we visit (probe) all DM watchdog
devices, and call the init_watchdog_dev helper for each.
Similarly let watchdog_reset() loop over the whole uclass - each
having their own ratelimiting metadata, and a separate "is this device
running" flag.
This gets rid of the watchdog_dev member of struct global_data. We
do, however, still need the GD_FLG_WDT_READY set in
initr_watchdog(). This is because watchdog_reset() can get called
before DM is ready, and I don't think we can call uclass_get() that
early.
The current code just returns 0 if "getting" the first device fails -
that can of course happen because there are no devices, but it could
also happen if its ->probe call failed. In keeping with that, continue
with the handling of the remaining devices even if one fails to
probe. This is also why we cannot use uclass_probe_all().
If desired, it's possible to later add a per-device "u-boot,autostart"
boolean property, so that one can do CONFIG_WATCHDOG_AUTOSTART
per-device.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Signed-off-by: Rasmus Villemoes <[email protected]>
|
|
First, we convert CONFIG_SYS_I2C_LEGACY to Kconfig. Next, as you cannot
have SYS_I2C_LEGACY and DM_I2C at the same time, introduce
CONFIG_SPL_SYS_I2C_LEGACY so that we can enable the legacy option only
in SPL. Finally, for some PowerPC cases we also need
CONFIG_TPL_SYS_I2C_LEGACY support. Convert all of the existing users to
one or more symbols.
Signed-off-by: Tom Rini <[email protected]>
|
|
It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and
CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less
than a year away.
Also we want to have a CONFIG_I2C for U-Boot proper just like we have
CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules.
Rename this symbol so it is clear it is going away.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
The capsule signature is now part of our DTB. This is problematic when a
user is allowed to change/fixup that DTB from U-Boots command line since he
can overwrite the signature as well.
So Instead of adding the key on the DTB, embed it in the u-boot binary it
self as part of it's .rodata. This assumes that the U-Boot binary we load
is authenticated by a previous boot stage loader.
Reviewed-by: Masami Hiramatsu <[email protected]>
Tested-by: Masami Hiramatsu <[email protected]>
Tested-by: Sughosh Ganu <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
|
|
The layout and contents of struct global_data depends on a lot of
CONFIG_* preprocessor macros, not all of which are entirely converted
to Kconfig - not to mention weird games played here and there. This
can result in one translation unit using one definition of struct
global_data while the actual layout is another.
That can be very hard to debug. But we already have a mechanism that
can help catch such bugs at build time, namely the asm-offsets
machinery which is necessary anyway to provide assembly code with the
necessary constants. So make sure that every C translation unit that
include global_data.h actually sees the same size of struct
global_data as that which was seen by the asm-offsets.c TU.
It is likely that this patch will break the build of some boards. For
example, without the patch from Matt Merhar
(https://lists.denx.de/pipermail/u-boot/2021-May/450135.html) or some
other fix, this breaks P2041RDB_defconfig:
CC arch/powerpc/lib/traps.o
AS arch/powerpc/cpu/mpc85xx/start.o
In file included from include/asm-generic/global_data.h:26,
from ./arch/powerpc/include/asm/global_data.h:109,
from include/init.h:21,
from arch/powerpc/lib/traps.c:7:
include/linux/build_bug.h:99:41: error: static assertion failed: "sizeof(struct global_data) == GD_SIZE"
99 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:98:34: note: in expansion of macro ‘__static_assert’
98 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/asm-generic/global_data.h:470:1: note: in expansion of macro ‘static_assert’
470 | static_assert(sizeof(struct global_data) == GD_SIZE);
| ^~~~~~~~~~~~~
make[1]: *** [scripts/Makefile.build:266: arch/powerpc/lib/traps.o] Error 1
make: *** [Makefile:1753: arch/powerpc/lib] Error 2
make: *** Waiting for unfinished jobs....
Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
If the console output buffer is exhausted, characters are silently dropped
from the end. Detect this condition and report an error when reading back
the characters.
Signed-off-by: Simon Glass <[email protected]>
|
|
This reverts commit d64b9cdcd475eb7f07b49741ded87e24dae4a5fc.
As pointed by [1] and [2], the reverted patch made every DT 'reg'
property translatable. What the patch was trying to fix was fixed in a
different way from previously submitted patches which instead of
correcting the generic address translation function fixed the issue with
appropriate platform code.
[1] https://patchwork.ozlabs.org/project/uboot/patch/[email protected]/
[2] https://lore.kernel.org/linux-clk/[email protected]/T/
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
|
|
This function is not used. Drop it.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
|
|
At present the device priv/data data allocated by dtoc is stored in the
data section along with other variables. On some platforms it is better
to allocate space for it separately, e.g. if SPL is running from read-only
memory.
Create a new space with the same size as that allocated by dtoc, ready for
use.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
|
|
At present when driver model needs to change a device it simply updates
the struct udevice structure. But with of-platdata-inst most of the fields
are not modified at runtime. In fact, typically only the flags need to
change.
For systems running SPL from read-only memory it is convenient to separate
out the runtime information, so that the devices don't need to be copied
before being used.
Create a new udevice_rt table, similar to the existing driver_rt. For now
it just holds the flags, although they are not used in this patch.
Add a new Kconfig for the driver_rt data, since this is not needed when
of-platdata-inst is used.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
|
|
When multiple log() calls are used which don't end in newline, the
log prefix is prepended multiple times in the same line. This makes the
output look strange.
Fix this by detecting when the previous log record did not end in newline.
In that case, setting a flag.
Drop the unused BUFFSIZE in the test while we are here.
As an example implementation, update log_console to check the flag and
produce the expected output.
Signed-off-by: Simon Glass <[email protected]>
|
|
Using the internal vs. external pull resistors it is possible to get
27 different combinations from 3 strapping pins. Add an implementation
of this.
This involves updating the sandbox GPIO driver to model external and
(weaker) internal pull resistors. The get_value() method now takes account
of what is driving a pin:
sandbox: GPIOD_EXT_DRIVEN - in which case GPIO_EXT_HIGH provides the
value
outside source - in which case GPIO_EXT_PULL_UP/DOWN indicates the
external state and we work the final state using those flags and
the internal GPIOD_PULL_UP/DOWN flags
Of course the outside source does not really exist in sandbox. We are just
modelling it for test purpose.
Signed-off-by: Simon Glass <[email protected]>
|
|
The new update_flags() method is more flexible since it allows the
driver to see the full flags all at once. Use that in preference to these
two functions. Add comments to that effect.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
|
|
It is convenient to be able to adjust some of the flags for a GPIO while
leaving others alone. Add a function for this.
Update dm_gpio_set_dir_flags() to make use of this.
Also update dm_gpio_set_value() to use this also, since this allows the
open-drain / open-source features to be implemented directly in the
driver, rather than using the uclass workaround.
Update the sandbox tests accordingly. This involves a lot of changes to
dm_test_gpio_opendrain_opensource() since we no-longer have the direciion
being reported differently depending on the open drain/open source flags.
Also update the STM32 drivers to let the uclass handle the active low/high
logic.
Drop the GPIOD_FLAGS_OUTPUT() macro which is no-longer used.
Signed-off-by: Simon Glass <[email protected]>
Tested-by: Kory Maincent <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Tested-by: Patrick Delaunay <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Tested-by: Patrick Delaunay <[email protected]>
|
|
This function can be used to get any flags, not just direction flags.
Rename it to avoid confusion.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
|
|
It is more useful to be able to read all the flags, not just the direction
ones. In fact this is what the STM32 driver does. Update the method name
to reflect this.
Tweak the docs a little and use 'flagsp' as the return argument, as is
common in driver model, to indicate it returns a value.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
|
|
The current method is a misnomer since it is also used (e.g. by stm32) to
update pull settings and open source/open drain.
Rename it and expand the documentation to cover a few more details.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Pratyush Yadav <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
|
|
At present the version string is obtained from PLAIN_VERSION. Some boards
may want to configure this using the device tree, since the build system
can more easily insert things there after U-Boot itself is built. Add this
option to the code.
Also in some cases the version needs to be generated programmatically,
such as when it is stored elsewhere in the ROM and must be read first.
To handle this, keep a pointer around so that it can be updated later.
This works by storing the last string in the context, since it is easier
than passing out a little-used extra parameter.
Provide a function to update the version string.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
|
|
It's possible to have ram_top above 4 GiB in a 32-bit system, hence
we need to declare ram_top as `phys_addr_t`.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
Add the Linux magic to the EFI file header to allow running our test
programs with GRUB's linux command. Now we can dump the fixed-up device
tree with our dtbdump.efi tool.
Signed-off-by: Heinrich Schuchardt <[email protected]>
|
|
'make htmldocs' creates a warning:
./include/asm-generic/global_data.h:443:
warning: Function parameter or member 'uclass_root_s'
not described in 'global_data'
Correct the member descriptions.
Cc: Simon Glass <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
|
|
spl_handoff should only be enabled when CONFIG_HANDOFF is set. Drop the
nested ifdefs and check for CONFIG_HANDOFF instead.
Signed-off-by: Ovidiu Panait <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
The __of_translate_address routine translates an address from the
device tree into a CPU physical address. A note in the description of
the routine explains that the crossing of any level with
since inherited from IBM. This does not happen for Texas Instruments, or
at least for the beaglebone device tree. Without this patch, in fact,
the translation into physical addresses of the registers contained in the
am33xx-clocks.dtsi nodes would not be possible. They all have a parent
with #size-cells = <0>.
The CONFIG_OF_TRANSLATE_ZERO_SIZE_CELLS symbol makes translation
possible even in the case of crossing levels with #size-cells = <0>.
The patch acts conservatively on address translation, except for
removing a check within the of_translate_one function in the
drivers/core/of_addr.c file:
+
ranges = of_get_property(parent, rprop, &rlen);
- if (ranges == NULL && !of_empty_ranges_quirk(parent)) {
- debug("no ranges; cannot translate\n");
- return 1;
- }
if (ranges == NULL || rlen == 0) {
offset = of_read_number(addr, na);
memset(addr, 0, pna * 4);
debug("empty ranges; 1:1 translation\n");
There are two reasons:
1 The function of_empty_ranges_quirk always returns false, invalidating
the following if statement in case of null ranges. Therefore one of
the two checks is useless.
2 The implementation of the of_translate_one function found in the
common/fdt_support.c file has removed this check while keeping the one
about the 1:1 translation.
The patch adds a test and modifies a check for the correctness of an
address in the case of enabling translation also for zero size cells.
The added test checks translations of addresses generated by nodes of
a device tree similar to those you can find in the files am33xx.dtsi
and am33xx-clocks.dtsi for which the patch was created.
The patch was also tested on a beaglebone black board. The addresses
generated for the registers of the loaded drivers are those specified
by the AM335x reference manual.
Signed-off-by: Dario Binacchi <[email protected]>
Tested-by: Dario Binacchi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
