Commit graph

746 commits

Author SHA1 Message Date
Simon Glass
c0f19fedaa dm: core: Correct ordering of uclasses IDs
A few of these are out of order. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23 18:11:39 -05:00
Tom Rini
ecca44805d net: ethoc: Remove non-DM_ETH code
As DM_ETH is required for all network drivers, it's now safe to
remove the non-DM_ETH support code.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-07 16:04:17 -05:00
Tom Rini
d5596cbc6e arm: lpc32xx: Remove unused hsuart driver
This driver is not enabled in any config currently, remove it.

Cc: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-05 16:07:13 -05:00
Simon Glass
9bd1aa8af2 dm: sandbox: Create a new HOST uclass
Sandbox supports block devices which can access files on the host machine.
At present there is no uclass for this. The devices are attached to the
root devic. The block-device type is therefore set to UCLASS_ROOT which
is confusing.

Block devices should be attached to a 'media' device instead, something
which handles access to the actual media and provides the block driver
for the block device.

Create a new uclass to handle this. It supports two operations, to attach
and detach a file on the host machine.

For now this is not fully plumbed in.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-11-07 16:24:30 -07:00
Sughosh Ganu
2eaedc9516 FWU: Add FWU metadata structure and driver for accessing metadata
In the FWU Multi Bank Update feature, the information about the
updatable images is stored as part of the metadata, which is stored on
a dedicated partition. Add the metadata structure, and a driver model
uclass which provides functions to access the metadata. These are
generic API's, and implementations can be added based on parameters
like how the metadata partition is accessed and what type of storage
device houses the metadata.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2022-10-31 14:47:32 -04:00
Michal Suchanek
f21954750a dm: core: Do not stop uclass iteration on error
When probing a device fails NULL pointer is returned, and following
devices in uclass list cannot be iterated. Skip to next device on error
instead.

With that the only condition under which these simple iteration
functions return error is when the dm is not initialized at uclass_get
time. This is not all that interesting, change return type to void.

Fixes: 6494d708bf ("dm: Add base driver model support")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-29 07:36:33 -06:00
Michal Suchanek
aa5511e77b dm: core: Add note about device_probe idempotence
device_probe returns early when the device is already activated.
Add a note to the documentation that it can be used on already activated
devices.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
2022-10-29 07:36:33 -06:00
Michal Suchanek
73f8fbc532 dm: core: Document return value of device bind functions
These functions use device_bind_with_driver_data internally, copy the
return value description.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
2022-10-29 07:36:33 -06:00
Michal Suchanek
58ddb937e1 dm: core: Switch uclass_*_device_err to use uclass_*_device_check
Clarify documentation, fix a few more cases that could be broken by the
change.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
2022-10-29 07:36:33 -06:00
Roger Quadros
2c120375e9 dm: memory: Introduce new uclass
Introduce UCLASS_MEMORY for future Memory Controller
device drivers.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-26 15:21:11 -04:00
Simon Glass
e7a18f7511 dm: core: Update docs about oftree_from_fdt()
Update this function's comment and also the livetree documentation, so it
is clear when to use the function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-17 21:17:13 -06:00
Michal Suchanek
e44d7e73fe dm: core: Switch uclass_*_device_err to use uclass_*_device_check
The _err variant iterators use the simple iterators without suffix as
basis.

However, there is no user that uclass_next_device_err for iteration,
many users of uclass_first_device_err use it to get the first and
(assumed) only device of an uclass, and a couple that use
uclass_next_device_err to get the device following a known device in the
uclass list.

While there are some truly singleton device classes in which more than
one device cannot exist these are quite rare, and most classes can have
multiple devices even if it is not the case on the SoC's EVB.

In a later patch the simple iterators will be updated to not stop on
error and return next device instead. With this in many cases the code
that expects the first device or an error if it fails to probe may get
the next device instead. Use the _check iterators as the basis of _err
iterators to preserve the old behavior.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-17 21:17:12 -06:00
Michal Suchanek
801f71194c dm: core: Switch uclass_foreach_dev_probe to use simple iterator
The return value is not used for anythig, and in a later patch the
behavior of the _err iterator will change in an incompatible way.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Update pvblock_probe() to avoid using internal var:
Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-17 21:17:12 -06:00
Alexander Dahl
1323d08bdf dm: fpga: Introduce new uclass
For future DM based FPGA drivers and for now to have a meaningful
logging class for old FPGA drivers.

Suggested-by: Michal Simek <michal.simek@amd.com>
Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Dahl <post@lespocky.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20220930120430.42307-2-post@lespocky.de
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-10-05 08:43:53 +02:00
Simon Glass
db1ef1e12b dm: core: Support copying properties with ofnode
Add a function to copy properties from one node to another.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
0b58eaa89c dm: core: Allow copying ofnode property data when writing
At present ofnode_write_prop() is inconsistent between livetree and
flattree, in that livetree requires the caller to ensure the property
value is stable (e.g. in rodata or allocated) but flattree does not, since
it makes a copy.

This makes the API call a bit painful to use, since the caller must do
different things depending on OF_LIVE.

Add a new 'copy' argument which tells the function to make a copy if
needed. Add some tests to cover this behaviour.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
988f146855 dm: core: Update comments for default-FDT ofnode functions
Some ofnode functions can only operate on the default device tree, i.e.
U-Boot's control FDT. Add comments to that effect. Fix up the reference to
device tree bindings while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
92291652b5 dm: core: Add the ofnode multi-tree implementation
Add the logic to redirect requests for the device tree through a function
which can look up the tree ID. This works by using the top bits of
ofnode.of_offset to encode a tree.

It is assumed that there will only be a few device trees used at runtime,
typically the control FDT (always tree ID 0) and possibly a separate FDT
to be passed the OS.

The maximum number of device trees supported at runtime is 8, with this
implementation. That would use bits 30:28 of the node-offset value,
meaning that the positive offset range is limited to bits 27:0, versus
30:1 with this feature disabled. That still allows a device tree of up
to 256MB, which should be enough for most FITs. Larger ones can be
supported by using external data with the FIT, or by enabling OF_LIVE.

Update the documentation a little and fix up the comment for
ofnode_valid().

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
41b65d68ec dm: core: Add definitions for multiple ofnode trees
At present, unless OF_LIVE is enabled, ofnode only supports access to one
device tree, the control FDT. This is because only the node offset is
encoded in ofnode, with the tree being implicit.

This makes ofnode (without OF_LIVE) unsuitable for device tree fixups, as
implemented by ft_board_setup() and other such functions.

To solve this, we can use the top bits of the node offset to hold a tree
ID.

Add the definitions for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
b7bd94f1a8 dm: core: Split ofnode_path_root() into two functions
This function turns out to be a little confusing since it looks up a path
and also registers the tree. Split it into two, one that gets the root
node and one that looks up a path, so the purpose is clear.

Registering the tree will happen in a function to be added in a later
patch, called oftree_from_fdt().

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
2187cb7e4a dm: core: Allow obtaining a node offset in the same tree
In some cases we want to obtain an ofnode in the same tree as a different
ofnode, such as when looking up a subnode. At present this is trivial,
since there is only one tree. When there are multiple trees, this
implementation will change.

Also move the ofnode_to_offset() function up higher in the header file,
since we will need to provide a different implementation with multiple
trees.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
928d267aee dm: core: Add a way to look up a phandle in an oftree
When we have multiple trees, the ofnode logic needs to be told which one
to use. Create a new function which takes an oftree argument, along with
a helper to obtain the FDT pointer from an oftree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
085d59411c dm: core: Add ofnode functions to obtain an oftree
At present dm_test_ofnode_root() does this manually. Add some inline
functions to handle it, so this code can be centralised.

Add oftree functions to produce a null tree and to check whether a tree
is valid or not.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
a3f50d0386 dm: core: Add an ofnode function to obtain the flat tree
The flat device tree is assumed to be the control FDT but this is not
always the case. Update the ofnode implementation to obtain the node via
an function call so we can eventually add support for selecting different
trees.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
ee88ba71ac dm: core: Provide a way to reset the device tree
At present there is only one device tree used by the ofnode functions,
except for some esoteric use of live tree. In preparation for supporting
more than one, add a way to reset the list of device trees.

For now this does nothing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:43 -04:00
Simon Glass
66d0d0c188 dm: core: Expand integer-reading tests
The current tests do not cover all the behaviour. Add some more.

Tidy up a few inconsistencies between livetree and flattree which come to
light with these tests. Also drop the -ENODATA error since it is never
actually returned.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 22:43:42 -04:00
Simon Glass
8909066199 dm: core: Drop ofnode_is_available()
This function is also available as ofnode_is_enabled(), so use that
instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:31 -04:00
Simon Glass
52ad21aa2c dm: core: Add a macro to iterate through properties
Add a 'for_each' macro like we have for nodes.

Fix the comment for struct ofprop while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:15 -04:00
Simon Glass
f46ec93ed5 dm: core: Avoid creating a name property when unflattening
The current implementation creates a 'name' value for every node. This
is not needed for the latest device tree format, which includes a name in
the node header.

Adjust the code to point the name at the node header instead.

Also simplify ofnode_get_name(), now that we can rely on it to set the
name correctly. Update the comment to make it clear what name the root
node has.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:14 -04:00
Simon Glass
9243224687 dm: core: Rename ofnode_get_property_by_prop()
The current name is quite unwieldy. Change it to use an ofprop_ prefix
and shorten it. Fix the return-value comment while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:14 -04:00
Simon Glass
4b1f571465 dm: core: Rename ofnode_get_first/next_property()
Drop the 'get' in these names since it does not fit with the rest of
the API.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:14 -04:00
Simon Glass
1701359f75 dm: core: Reduce code size with dev_of_offset()
Update the function to mark it with the const attribute. Also avoid
calling it multiple times in the devfdt_get_addr_index() function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:11:14 -04:00
Simon Glass
9830698765 dm: core: Drop the const from ofnode
Now that we support writing to ofnodes, the const is not accurate. Drop
it to avoid undesirable casting.

Also drop the ofnode_to_npw() which is now the same as ofnode_to_np().

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:58 -04:00
Simon Glass
ffe9039249 dm: core: Allow adding ofnode subnodes
Add this feature to the ofnode interface, supporting both livetree and
flattree. If the node exists it is returned, along with a -EEXIST error.
Update the functions it calls to handle this too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:58 -04:00
Simon Glass
5ecba3ba40 dm: core: Document the livetree structures properly
Clarify the data structure so it is easier for people to understand,
particularly the corner cases.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:58 -04:00
Simon Glass
829d51246f dm: core: Pass a root node to of_find_node_by_phandle()
This function currently assumes that the control FDT is used. Update it
to allow a root node to be passed, so it can work with any tree.

Also add a comment to ofnode_get_by_phandle() so that its purpose is
clear.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:07:58 -04:00
Stefan Herbrechtsmeier
b471bdc47b dm: core: Add functions to read 8/16-bit integers
Add functions to read 8/16-bit integers like the existing functions for
32/64-bit to simplify read of 8/16-bit integers from device tree
properties.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-09-14 15:23:03 -04:00
Simon Glass
55f7990bfe dm: core: Add support for writing u32 with ofnode
Add a new function to write an integer to an ofnode (live tree or
flat tree).

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:24 -04:00
Simon Glass
39e42be12b dm: core: Allow writing to a flat tree with ofnode
In generally it is not permitted to implement an ofnode function only for
flat tree or live tree. Both must be supported. Also the code for
live tree access should be in of_access.c rather than ofnode.c which is
really just for holding the API-conversion code.

Update ofnode_write_prop() accordingly and fix the test so it can work
with flat tree too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:24 -04:00
Simon Glass
be0789a8ee dm: core: Swap parameters of ofnode_write_prop()
It is normal for the length to come after the value in libfdt. Follow this
same convention with ofnode.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:24 -04:00
Simon Glass
331048471d dm: core: Introduce support for multiple trees
At present ofnode only works with a single device tree, for the most part.
This is the control FDT used by U-Boot.

When booting an OS we may obtain a different device tree and want to
modify it. Add some initial support for this into the ofnode API.

Note that we don't permit aliases in this other device tree, since the
of_access implementation maintains a list of aliases collected at
start-up. Also, we don't need aliases to do fixups in the other FDT. So
make sure that flat tree and live tree processing are consistent in this
area.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:23 -04:00
Simon Glass
72b338aa2c dm: core: Add a note about how livetree updates work
The unflattening algorithm results in a single block of memory being
allocated for the whole tree. When writing new properties, these are
allocated new memory outside that block. When the block is freed, the
allocated properties remain.

Document how this works and the potential memory leak, as well as
mentioning that updating the livetree is actually supported now.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:23 -04:00
Simon Glass
5063ced278 dm: core: Split out the declaration of ofnode
This is used by a lot of files, but ofnode.h needs to include a lot of
header files. This can create dependency cycles, particularly with
global_data.h which must include various declarations.

Split the core delcarations into a separate file to fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:14:23 -04:00
Pali Rohár
a1de1035b2 pinctrl: Add third argument label for pinctrl_gpio_request() function
This change allows to use pinctrl_gpio_request() function as a direct
pointer for dm_gpio_ops's .request callback.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-07-28 15:17:45 +02:00
Pali Rohár
92c4a95ec7 pinctrl: Add new function pinctrl_generic_set_state_prefix()
This new function pinctrl_generic_set_state_prefix() behaves like
pinctrl_generic_set_state() but it takes third string argument which is
used as the prefix for each device tree string property.

This is needed for Marvell pinctrl drivers, becase Linux device tree files
have pinmux properties prefixed by "marvell," string.

This change allows to use generic U-Boot pinctrl functions for Armada 38x
pinctrl driver without need to copy+paste of the majority U-Boot pinctrl
code.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-07-28 08:41:44 +02:00
Tom Rini
9ff4ce8abc nman external-symbol improvements
Driver model memory-usage reporting
 patman test-reporting improvements
 Add bloblist design goals
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Merge tag 'dm-pull-28jun22' of https://source.denx.de/u-boot/custodians/u-boot-dm into next

nman external-symbol improvements
Driver model memory-usage reporting
patman test-reporting improvements
Add bloblist design goals
2022-07-08 14:39:07 -04:00
Tom Rini
a457ebd786 arm: Remove PXA architecture support
With the last platform for this architecture removed, remove the rest of
the architecture support as well.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-07-07 09:29:08 -04:00
Simon Glass
2cb4ddb91e dm: core: Add a command to show driver model statistics
This command shows the memory used by driver model along with various
hints as to what it might be if some 'core' tags were moved to use the
tag list instead of a core (i.e. always-there) pointer.

This may help with future work to reduce memory usage.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:52 +01:00
Simon Glass
0dfda34ca5 dm: core: Add a way to collect memory usage
Add a function for collecting the amount of memory used by driver model,
including devices, uclasses and attached data and tags.

This information can provide insights into how to reduce the memory
required by driver model. Future work may look at execution speed also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:52 +01:00
Simon Glass
930a3ddade dm: core: Support accessing core tags
At present tag numbers are only allocated for non-core data, meaning that
the 'core' data, like priv and plat, are accessed through dedicated
functions.

For debugging and consistency it is convenient to use tags for this 'core'
data too. Add support for this, with new tag numbers and functions to
access the pointer and size for each.

Update one of the test drivers so that the uclass-private data can be
tested here.

There is some code duplication with functions like device_alloc_priv() but
this is not addressed for now. At some point, some rationalisation may
help to reduce code size, but more thought it needed on that.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:52 +01:00
Simon Glass
53c20bebb2 dm: core: Switch the testbus driver to use a new struct
At present this driver uses 'priv' struct to hold 'plat' data, which is
confusing. The contents of the strct don't matter, since only dtoc is
using it. Create a new struct with the correct name.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:52 +01:00
Simon Glass
1452870404 dm: core: Rename dm_dump_all()
This is not a good name anymore as it does not dump everything. Rename it
to dm_dump_tree() to avoid confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-06-28 03:09:52 +01:00
Sean Anderson
8b52f237f0 dm: core: Provide fallbacks for ofnode_conf_read_...
Because fdt_get_config_str et al. were moved/renamed to
ofnode_conf_read_str, they now depend on CONFIG_DM as well as
CONFIG_OF_CONTROL. Add some fallback implementations, preventing a
linker error when CONFIG_SPL_OF_CONTROL and CONFIG_SPL_ENV_IS_IN_MMC are
enabled and CONFIG_SPL_DM is disabled.

Fixes: 7de8bd03c3 ("treewide: fdt: Move fdt_get_config_... to ofnode_conf_read...")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-06-28 03:09:51 +01:00
Andrew Scull
3f807c6b81 fuzzing_engine: Add fuzzing engine uclass
This new class of device will provide fuzzing inputs from a fuzzing
engine.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-23 12:58:18 -04:00
Tom Rini
3135ba642f arm: pxa: Remove CONFIG_CPU_PXA25X
There are no platforms that set this, remove the code.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:12 -04:00
Marek Vasut
9cc32bfa49 dm: core: Add DM_FLAG_PROBE_AFTER_BIND flag
Introduce DM_FLAG_PROBE_AFTER_BIND flag, which can be set by driver or
uclass in .bind(), to indicate such driver instance should be probe()d
once binding of all devices is complete.

This is useful in case the driver determines that hardware initialization
is mandatory on boot, and such initialization happens only in probe().
This also solves the inability to call device_probe() from .bind().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-04-28 09:26:43 -04:00
Tom Rini
8cfac237b9 Merge branch '2022-04-25-initial-implementation-of-stdboot'
To quote the author:
The bootflow feature provide a built-in way for U-Boot to automatically
boot an Operating System without custom scripting and other customisation.
This is called 'standard boot' since it provides a standard way for
U-Boot to boot a distro, without scripting.

It introduces the following concepts:

   - bootdev - a device which can hold a distro
   - bootmeth - a method to scan a bootdev to find bootflows (owned by
                U-Boot)
   - bootflow - a description of how to boot (owned by the distro)

This series provides an implementation of these, enabled to scan for
bootflows from MMC, USB and Ethernet. It supports the existing distro
boot as well as the EFI loader flow (bootefi/bootmgr). It works
similiarly to the existing script-based approach, but is native to
U-Boot.

With this we can boot on a Raspberry Pi 3 with just one command:

   bootflow scan -lb

which means to scan, listing (-l) each bootflow and trying to boot each
one (-b). The final patch shows this.

With a standard way to identify boot devices, booting become easier. It
also should be possible to support U-Boot scripts, for backwards
compatibility only.

...

The design is described in these two documents:

https://drive.google.com/file/d/1ggW0KJpUOR__vBkj3l61L2dav4ZkNC12/view?usp=sharing

https://drive.google.com/file/d/1kTrflO9vvGlKp-ZH_jlgb9TY3WYG6FF9/view?usp=sharing
2022-04-25 16:02:27 -04:00
Simon Glass
a950d31abe bootstd: Add the bootmeth uclass and helpers
A bootmeth is a method of locating an operating system. For now, just
add the uclass itself. Drivers for particular bootmeths are added later.

If no bootmeths devices are included in the devicetree, create them
automatically. This avoids the need for boilerplate in the devicetree
files.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00
Simon Glass
201417d700 bootstd: Add the bootdev uclass
A 'bootdev' is a device which can be used to boot an operating system.
It is a child of the media device (e.g. MMC) which handles reading files
from that device, such as a bootflow file.

Add a uclass for bootdev and the various helpers needed to make it
work. Also add a binding file, empty for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00
Simon Glass
ef5e3891f5 bootstd: Add the bootstd uclass and core implementation
The 'bootstd' device provides the central information about U-Boot
standard boot.

Add a uclass for bootstd and the various helpers needed to make it
work. Also add a binding file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:04 -04:00
Simon Glass
4e0710a2d0 dm: core: Allow finding a uclass device by partial name
In some cases two devices are related and the only way to tell is to
check that the names partially patch. Add a way to check this without
needing to create a new string for the comparison.

Fix the comment for device_find_child_by_namelen() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-25 10:00:03 -04:00
Simon Glass
6aa4fe3912 dm: core: Rename and fix uclass_get_by_name_len()
It seems that namelen is more common in U-Boot. Rename this function to
fit in better. Also fix a bug where it breaks the operation of
uclass_get_by_name() and add a test.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reported-by: Tim Harvey <tharvey@gateworks.com>
2022-04-25 10:00:03 -04:00
AKASHI Takahiro
43855fdb2c dm: disk: add UCLASS_PARTITION
NOTE: probably we have to update config dependencies,
in particular, SPL/TPL_PRINTF?

With this new function, UCLASS_PARTITION devices will be created as
child nodes of UCLASS_BLK device.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-04-23 22:05:41 +02:00
Simon Glass
cdd73e7215 dm: core: Deal with a wrinkle with linker lists
When every member of a linker list is aligned by the compiler, we can no
longer rely on the sizeof of the struct to determine the number of
entries.

For example, if the struct size is 0x90 but every entry is aligned to 0xa0
by the compiler, the linker list entries takes more space in memory and
the calculation of the number of entries is incorrect. For example, we may
see 0x12 entries when there are only 0x11.

This is a real problem. There may be a general solution, although I cannot
currently think of one. So far it only bites with OF_PLATDATA_RT which
creates a pointer to each entry of the 'struct udevice' linker_list. This
does not happen without that option, so it only affects SPL.

Work around it by manually calculating the aligned size of struct udevice,
then using that for the n_ent calculation.

Note: the alignment fix to linker list was here:

   0b2fa98aa5 linker_lists: Fix alignment issue

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-18 17:53:56 -04:00
Simon Glass
092d5c2a83 dm: core: Allow devres to be disabled in SPL
At present if devres is enabled in U-Boot proper it is enabled in SPL.
We don't normally want it there, so disable it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Angus Ainslie <angus@akkea.ca>
2022-04-18 17:53:56 -04:00
Tom Rini
7f418ea598 Merge branch 'next' of https://source.denx.de/u-boot/custodians/u-boot-net
- DM9000 DM support
- tftp server bug fix
- mdio ofnode support functions
- Various phy fixes and improvements.

[trini: Fixup merge conflicts in drivers/net/phy/ethernet_id.c
drivers/net/phy/phy.c include/phy.h]
2022-04-15 08:10:32 -04:00
Marek Behún
ffb0f6f488 treewide: Rename PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA
Rename constant PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA to make
it compatible with Linux' naming.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
2022-04-10 08:44:13 +03:00
Marek Behún
123ca114e0 net: introduce helpers to get PHY interface mode from a device/ofnode
Add helpers ofnode_read_phy_mode() and dev_read_phy_mode() to parse the
"phy-mode" / "phy-connection-type" property. Add corresponding UT test.

Use them treewide.

This allows us to inline the phy_get_interface_by_name() into
ofnode_read_phy_mode(), since the former is not used anymore.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-04-10 08:44:12 +03:00
Marek Behún
f3dd213e15 net: introduce helpers to get PHY ofnode from MAC
Add helpers ofnode_get_phy_node() and dev_get_phy_node() and use it in
net/mdio-uclass.c function dm_eth_connect_phy_handle(). Also add
corresponding UT test.

This is useful because other part's of U-Boot may want to get PHY ofnode
without connecting a PHY.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-10 08:44:12 +03:00
AKASHI Takahiro
6b7a6210fd dm: add tag support
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 <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-09 21:06:31 +02:00
Simon Glass
e86b6f7100 dm: core: Tidy up comments in uclass headers
Improve some of the comments in these files, which don't follow the
correct style.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
bb36b9a7d6 dm: core: Add a required struct declaration
This file uses struct driver, so declare it at the top in case the
header-inclusion order is not as expected.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Heinrich Schuchardt
d23f290840 dm: fix function documentation in include/dm/ofnode.h
We use Sphinx style comments to describe functions.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2022-04-06 09:21:49 -04:00
Tom Rini
297e6eb8dc Xilinx changes for v2022.07-rc1
microblaze:
 - Add support for reserved memory
 
 xilinx:
 - Update FRU code with MAC reading
 
 zynqmp:
 - Remove double AMS setting
 - DT updates (mostly for SOMs)
 - Add support for zcu106 rev 1.0
 
 zynq:
 - Update nand binding
 
 nand:
 - Aligned zynq_nand to upstream DT binding
 
 net:
 - Add support for ethernet-phy-id
 
 mmc:
 - Workaround CD in zynq_sdhci driver also for ZynqMP
 - Add support for dynamic/run-time SD config for SOMs
 
 gpio:
 - Add driver for slg7xl45106
 
 firmware:
 - Add support for dynamic SD config
 
 power-domain:
 - Update zynqmp driver with the latest firmware
 
 video:
 - Add skeleton driver for DP and DPDMA
 
 i2c:
 - Fix i2c to work with QEMU
 
 pinctrl:
 - Add driver for zynqmp pinctrl driver
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Merge tag 'xilinx-for-v2022.07-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze into next

Xilinx changes for v2022.07-rc1

microblaze:
- Add support for reserved memory

xilinx:
- Update FRU code with MAC reading

zynqmp:
- Remove double AMS setting
- DT updates (mostly for SOMs)
- Add support for zcu106 rev 1.0

zynq:
- Update nand binding

nand:
- Aligned zynq_nand to upstream DT binding

net:
- Add support for ethernet-phy-id

mmc:
- Workaround CD in zynq_sdhci driver also for ZynqMP
- Add support for dynamic/run-time SD config for SOMs

gpio:
- Add driver for slg7xl45106

firmware:
- Add support for dynamic SD config

power-domain:
- Update zynqmp driver with the latest firmware

video:
- Add skeleton driver for DP and DPDMA

i2c:
- Fix i2c to work with QEMU

pinctrl:
- Add driver for zynqmp pinctrl driver
2022-03-16 12:52:02 -04:00
Ashok Reddy Soma
e19b8dda92 pinctrl: Increase length of pinmux status buffer
Xilinx ZynqMP SOC can set 6 parameters for its pins. pinmux status
command will print the status of these parameters for each pin. But
current print buffer length is only 40 characters long, increase it
to 80 to print all the parameters.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/3a6be84c8354f38754a9838670cc0319e84f29e8.1645626183.git.michal.simek@xilinx.com
2022-03-14 15:23:26 +01:00
Simon Glass
5b896ed585 event: Add events for device probe/remove
Generate events when devices are probed or removed, allowing hooks
to be added for these situations.

This is controlled by the DM_EVENT config option.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-10 08:28:36 -05:00
Michal Simek
db681d4929 net: phy: Add new read ethernet phy id function
Add new function to get ethernet phy id from compatible property
of the mdio phy node.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Link: https://lore.kernel.org/r/16019efb3820a50330935fdaae191cec1f101b5c.1645627539.git.michal.simek@xilinx.com
2022-03-09 12:43:16 +01:00
Ashok Reddy Soma
4173a42685 dm: pinctrl: Use explicit values for enums
Based on discussion at
https://lore.kernel.org/r/20200318125003.GA2727094@kroah.com we got
recommendation to use explicit values for all enums.

So, add explicit values to all pinctrl related enums for readability.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/dcdb20e7252ea7465e9f984d815e9624c30e9558.1645624969.git.michal.simek@xilinx.com
2022-03-07 08:49:42 +01:00
Sughosh Ganu
82ee8bfe51 dm: Use parenthesis for the device_get_ops macro argument
Use parenthesis for the device_get_ops macro argument. This prevents
errors when using an expression for the parameter.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-09 12:26:12 -07:00
Simon Glass
2d7c738296 acpi: Collect tables in the acpi_item list
At present this list is used to collect items within the DSDT and SSDT
tables. It is useful for it to collect the whole tables as well, so there
is a list of what was created and which write created each one.

Refactor the code accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
eacb6d0ba2 x86: Move DSDT table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.

Disable this table for sandbox since we don't actually compile real ASL
code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
a53d38f80a x86: Move FACS table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
94ba15a3f1 x86: Move base tables to a writer function
Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
cc1f8c3988 x86: acpi: Split out context creation from base tables
At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
6afa63a5a6 acpi: Add a linker list for ACPI tables
At present we call lots of functions to generate the required ACPI tables.
It would be better to standardise these functions and allow them to be
automatically collected and used when needed.

Add a linker list to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
fb746fdec6 acpi: Add a table start
It is useful to record the start of an ACPI table so that offsets from
that point can be easily calculated.

Add this to the context and set it before calling the writer method.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Heinrich Schuchardt
185f812c41 doc: replace @return by Return:
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 <heinrich.schuchardt@canonical.com>
2022-01-19 18:11:34 +01:00
Patrick Delaunay
5ebb52702e doc: add include/dm/fdtaddr.h to the HTML documentation
Correct Sphinx style comments in include/dm/fdtaddr.h
and add the devfdt API to the HTML documentation;
these functions are NOT compatible with live tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
be74f71a67 doc: add include/dm/of*.h to the HTML documentation
Correct Sphinx style comments in include/dm/ofnode.h
and add the device tree node API to the HTML documentation;
the ofnode functions are compatible with Live tree or with flat
device tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
6de6a615f8 doc: add include/dm/read.h to the HTML documentation
Correct Sphinx style comments in include/dm/read.h
and add the device read from device tree API to the HTML
documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
494bc8e6f0 doc: add include/dm/devres.h to the HTML documentation
Correct Sphinx style comments in include/dm/devres.h
and add the driver model device resource API, devres_*(),
to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
9fb1c77ef6 doc: add include/dm/device.h to the HTML documentation
Correct Sphinx style comments in include/dm/device.h
and add the driver model device API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
ca4ca43e2f doc: add include/dm/platdata.h to the HTML documentation
Correct Sphinx style comments in include/dm/platdata.h
and add the associated API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
cbb14ac92c doc: add include/dm/lists.h to the HTML documentation
Correct Sphinx style comments in include/dm/lists.h
and add the list API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
0cdd7ded88 doc: add include/dm/root.h to the HTML documentation
Correct Sphinx style comments in include/dm/devres.h
and add the associated driver model API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Patrick Delaunay
797b2a2ed4 doc: add include/dm/uclass.h to the HTML documentation
Correct Sphinx style comments in include/dm/uclass.h
and add the driver model UCLASS API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-15 10:57:21 +01:00
Simon Glass
6476c4d981 dm: core: Allow getting some basic stats
Add a function that returns some basic stats about driver model. For now
we only have two.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-23 10:24:40 -05:00
Tom Rini
4afab30cae Prepare v2022.01-rc4
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Merge tag 'v2022.01-rc4' into next

Prepare v2022.01-rc4
2021-12-20 17:12:04 -05:00
AKASHI Takahiro
3cfc042d43 dm: fix an 'undefined' error in some macros
Due to a non-existing parameter name in macro's, use of those macro's will
cause a compiler error of "undefined reference".
Unfortunately, dm test doesn't fail because a wrong name ("&dev", hence it
is accidentally a valid name in the context of a caller site) is passed on.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Fixes: f262d4ca4b ("dm: core: Add a way to read platdata for all
	child devices")
Fixes: 903e83ee84 ("dm: core: Add a way to iterate through children,
	probing each")
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-12-18 12:05:19 +01:00
Simon Glass
42b7f4212a efi: Add uclass for devices provided by UEFI firmware
UCLASS_EFI_LOADER is used for devices created by applications and
drivers loaded by U-Boots UEFI implementation.

This patch provides a new uclass (UCLASS_EFI_MEDIA) to be used for devices
that provided by a UEFI firmware calling U-Boot as an EFI application.

If the two uclasses can be unified, is left to future redesign.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-12-09 11:43:25 -08:00