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At present a device can read its ofdata before its parent has done the
same. This can cause problems in the case where the parent has a 'ranges'
property, thus affecting the operation of dev_read_addr(), for example.
We already probe parent devices before children so it does not seem to be
a large step to do the same with ofdata.
Make the change and update the documentation in this area.
Signed-off-by: Simon Glass <[email protected]>
Tested-by: Ley Foon Tan <[email protected]>
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%s/UCLASS_ETHERNET/UCLASS_ETH/g
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The way the PCI nodes are written today causes a number of warnings if
we stop disabling some of the warnings we pass to DTC. As these
warnings aren't disabled in current Linux Kernel builds, we should aim
to not disable them here either, so rewrite these slightly. Update the
driver model doc as well.
Cc: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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doc/README.drivers.eth seems like a good source for understanding
U-Boot's network subsystem, but is only talking about legacy network
drivers. This is particularly sad as proper documentation would help in
porting drivers over to the driver model.
Rewrite the document to describe network drivers in the new driver model
world. Most driver callbacks/methods are almost identical in their
semantic, but recv() differs in some important details.
Also keep some parts of the original text at the end, to help
understanding old drivers. Add some hints on how to port drivers over.
This also uses the opportunity to reformat the document in reST, on the
way moving it into doc/driver-model and adding it into the structure
there.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
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sandbox conversion to SDL2
TPM TEE driver
Various minor sandbox video enhancements
New driver model core utility functions
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The patch fixes some errors.
Signed-off-by: Dario Binacchi <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Following the recommendation of adding '#define DEBUG' at the top
of drivers/core/lists.c does not cause the debug messages to be
shown. Change it to '#define LOG_DEBUG' instead, which actually
makes it work as per doc/README.log.
While at it, provide the full path to lists.c to in order to make
the instructions clearer.
Signed-off-by: Fabio Estevam <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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We don't want to include dt-structs.h in header files, so add a note about
that.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Add a note about the driver name in the of-platdata documentation since
the naming must follow the compatible string.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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We need distinguish the following two situations in various SPI APIs:
- given chip select num is invalid
- given chip select num is valid, but no device is attached
Currently -ENODEV is returned for both cases.
For the first case, it's more reasonable to return -EINVAL instead of
-ENODEV for invalid chip select numbers.
Signed-off-by: Bin Meng <[email protected]>
Tested-by: Jagan Teki <[email protected]> # SoPine
Reviewed-by: Jagan Teki <[email protected]>
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If an SPI controller driver does not implement ops->cs_info, that
probably means any chip select number could be valid, hence let's
return 0 for spi_cs_info().
Signed-off-by: Bin Meng <[email protected]>
Tested-by: Jagan Teki <[email protected]> # SoPine
Reviewed-by: Jagan Teki <[email protected]>
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Make it a little easier to find the documentation.
Signed-off-by: Ralph Siemsen <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Fix these spelling errors the header file and documentation.
Fix a small typo in the PCI documentation.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Sandbox pci works using emulation drivers which are currently children of
the pci device:
pci-controller {
pci@1f,0 {
compatible = "pci-generic";
reg = <0xf800 0 0 0 0>;
emul@1f,0 {
compatible = "sandbox,swap-case";
};
};
};
In this case the emulation device is attached to pci device on address
f800 (device 1f, function 0) and provides the swap-case functionality.
However this is not ideal, since every device on a PCI bus has a child
device. This is only really the case for sandbox, but we want to avoid
special-case code for sandbox.
Worse, child devices cannot be probed before their parents. This forces
us to use 'find' rather than 'get' to obtain the emulator device. In fact
the emulator devices are never probed. There is code in
sandbox_pci_emul_post_probe() which tries to track when emulators are
active, but at present this does not work.
A better approach seems to be to add a separate node elsewhere in the
device tree, an 'emulation parent'. This could be given a bogus address
(such as -1) to hide the emulators away from the 'pci' command, but it
seems better to keep it at the root node to avoid such hacks.
Then we can use a phandle to point from the device to the correct
emulator, and only on sandbox. The code to find an emulator does not
interfere with normal pci operation.
Add a new UCLASS_PCI_EMUL_PARENT uclass which allows finding an emulator
given a bus, and finding a bus given an emulator. Update the existing
device trees and the code for finding an emulator.
This brings PCI emulators more into line with I2C.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
[bmeng: fix 3 typos in the commit message;
encode bus number in the labels of swap_case_emul nodes;
mention commit 4345998ae9df in sandbox_pci_get_emul()]
Signed-off-by: Bin Meng <[email protected]>
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Sometimes devices don't appear and it can be confusing. Add a few notes to
help with this situation.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
[bmeng: fix 2 issues in the doc and include the doc in the index.rst]
Signed-off-by: Bin Meng <[email protected]>
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For many sub-systems we already require the driver model to be used. Yet
there is still a handful of boards that do not have CONFIG_DM enabled.
We should make CONFIG_DM compulsory with release v2020.01
Conversion dates for CONFIG_DM_SPL and CONFIG_DM_TPL are yet to be defined.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The of-plat.rst file till this change has been using
This is at best misleading as SPL_OF_PLATDATA is always defined when we
want to use this SPL tinification feature (also in U-Boot proper).
As a result the OF_PLATDATA SPL specific code is also compiled in when
U-Boot proper is build.
Signed-off-by: Lukasz Majewski <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Update SPI drivers, driver model conversion status for
v2019.10 release.
Signed-off-by: Jagan Teki <[email protected]>
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The driver model has been supported for network drivers since 2015. It is
time to convert the remaining boards. Set July 2020 as a timeline.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Convert plain text documentation to reStructuredText format and add
it to Sphinx TOC tree. No essential content change.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Add index.rst for driver model. More docs will be added later.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Add documentation for the pre-reloc property in SPL and TPL device-tree:
- u-boot,dm-pre-proper
- u-boot,dm-pre-reloc
- u-boot,dm-spl
- u-boot,dm-tpl
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Now, we have few driver are fully converted into dm and few
are partially converted.
So, update the migration status accordingly.
Signed-off-by: Jagan Teki <[email protected]>
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In previously label which will be expanded to the node's full path was
used, and now replacing label with most commonly used DT phandle. The
codes were changed accordingly to the use of DT phandle and supporting
multiple instances.
Signed-off-by: Tien Fong Chee <[email protected]>
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Now that all boards using TI QSPI have moved to DM and DT, drop non DM
code completely.
Signed-off-by: Vignesh Raghavendra <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
[jagan: update MIGRATION.txt, rebase config_whitelist.txt]
Signed-off-by: Jagan Teki <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Improve some things in the documentation of OF_PLATDATA that I found
while porting socfgpa_gen5 to it.
Signed-off-by: Simon Goldschmidt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Switching private data manual allocation to driver model auto allocation
so users no longer need to deallocate themself because this would be
deallocated by driver model when the device is no longer required.
Signed-off-by: Tien Fong Chee <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add a migration plan for video which is an important subsystem in U-Boot.
Signed-off-by: Simon Glass <[email protected]>
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Add a migration plan for PCI which is an important subsystem in U-Boot.
Signed-off-by: Simon Glass <[email protected]>
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- v2019.04 for no dm conversion drivers
- v2019.07 for partially converted drivers.
Note: there were many updates on this deadline, so better
not update this again.
Signed-off-by: Jagan Teki <[email protected]>
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The function part_init() will only be built when we have both
CONFIG_PARTITIONS and CONFIG_HAVE_BLOCK_DEVICE set. Protect the call to
this function with both of these tests now.
Cc: Simon Glass <[email protected]>
Cc: Philipp Tomsich <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: York Sun <[email protected]>
Cc: Prabhakar Kushwaha <[email protected]>
Cc: Mingkai Hu <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Marek Behún <[email protected]>
Cc: Vanessa Maegima <[email protected]>
Cc: Eugen Hristev <[email protected]>
Cc: Adam Ford <[email protected]>
Cc: Jagan Teki <[email protected]>
Cc: Tom Warren <[email protected]>
Cc: Stephen Warren <[email protected]>
Cc: Vitaly Andrianov <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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- Various MTD fixes from Boris
- Zap various unused / legacy paths.
- pxa3xx NAND update from Miquel
Signed-off-by: Tom Rini <[email protected]>
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The biggest part of migration to using CONFIG_BLK is that we need to
have the various subsystems migrated first, so reword the plan here to
reference the new deadlines.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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As the core of the subsystem has been converted along with some of the
drivers, formalize a deadline for migration.
Cc: Akshay Bhat <[email protected]>
Cc: Andreas Geisreiter <[email protected]>
Cc: Bin Meng <[email protected]>
Cc: Christian Gmeiner <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: Jason Liu <[email protected]>
Cc: Ken Lin <[email protected]>
Cc: Ludwig Zenz <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Max Krummenacher <[email protected]>
Cc: Nikita Kiryanov <[email protected]>
Cc: Otavio Salvador <[email protected]>
Cc: Peng Fan <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Cc: Soeren Moch <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Tim Harvey <[email protected]>
Cc: Troy Kisky <[email protected]>
Cc: Tuomas Tynkkynen <[email protected]>
Cc: York Sun <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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As much of the USB system has been migrated to DM now, formalize a
deadline for migration.
Reviewed-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Given that at this point the MMC subsystem itself has been migrated
along with a number of subsystem drivers, formalize a deadline for
migration.
Reviewed-by: Simon Glass <[email protected]>
Cc: Jaehoon Chung <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Goldschmidt <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
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spi_init used in some areas in tree, but the respective
drivers will remove in future patches.
So remove the same instances.
Signed-off-by: Jagan Teki <[email protected]>
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Add some description about pre-relocation driver binding, including
usage of DM_FLAG_PRE_RELOC flag and caveats.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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