Commit graph

24689 commits

Author SHA1 Message Date
Marcel Ziswiler
559c5389c2 verdin-imx8mm: verdin-imx8mp: update env memory layout (again)
Update the distro config env memory layout for the Verdin iMX8M Mini and
Verdin iMX8M Plus again:

- loadaddr=0x48200000 allows for 128MB area for uncompressing (ie FIT
  images, kernel_comp_addr_r, kernel_comp_size)
- fdt_addr_r = loadaddr + 128MB - allows for 128MB kernel
- scriptaddr = fdt_addr_r + 512KB - allows for 512KB fdt
- ramdisk_addr_r = scriptaddr + 512KB - allows for 512KB script

Memory layout taken from commit fd5c7173ad
("imx8m{m,n}_venice: update env memory layout").

Note that for our regular BSP Layers and Reference Images for Yocto
Project an updated distro boot script is required (see
meta-toradex-bsp-common/recipes-bsp/u-boot/u-boot-distro-boot).

Note that this corrects a pre-maturely applied version 2 of the same
patch set.

Fixes: bbe0089d29 ("verdin-imx8mm: verdin-imx8mp: update env memory layout")
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-10-24 11:34:33 +02:00
Manoj Sai
864ac2cf38 board: imx8mp: Add Engicam i.Core MX8M Plus EDIMM2.2 Starter Kit
i.Core MX8M Plus is an EDIMM SoM based on NXP i.MX8M Plus from Engicam.

i.Core MX8M Plus needs to mount on top of this Evaluation board for
creating complete i.Core MX8M Plus EDIMM2.2 Starter Kit.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
2022-10-24 11:34:33 +02:00
Marek Vasut
39236acb0d ARM: imx6: dh-imx6: Use sf update instead of sf erase and write
With sf update fixed to support unaligned start offset, use plain
sf update to update the bootloader in SPI NOR. This also helps
avoid the case where not enough SPI NOR has been erased and the
bootloader has been written to unerased area, and thus corrupted.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2022-10-21 11:54:13 +02:00
Marcel Ziswiler
7fe2408b82 apalis/colibri_imx6/-imx6ull/_imx7: update env memory layout
Update the distro config env memory layout for the Apalis iMX6,
Colibri iMX6, Colibri iMX6ULL and Colibri iMX7:

- loadaddr=0x84200000 (resp. 0x14200000 on them i.MX 6) allows for 64MB
  area for uncompressing (ie FIT images)
- fdt_addr_r = loadaddr + 64MB : allows for 64MB kernel
- scriptaddr = fdt_addr_r + 512KB : allows for 512KB fdt
- pxefile_addr_r = scriptaddr + 512KB : allows for 512KB script
- ramdisk_addr_r = pxefile_addr_r + 512KB : allows for 1MB extlinux.conf

Memory layout analogous to 64-bit one from commit fd5c7173ad
("imx8m{m,n}_venice: update env memory layout") but left pxefile_addr_r
updated according to doc/develop/distro.rst.

This fixes a potential issue caused by the compressed kernel being
relocated on top of the ramdisk causing its corruption.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2022-10-21 11:54:13 +02:00
Ariel D'Alessandro
187da7226c nitrogen6x: Remove extra quotes in fdtfile
After commit 395110284b ("nitrogen6x: Populate FDTFILE at build-time
for all platforms") iMX.6Q Sabrelite fails to boot due to a bad fdtfile
string:

  Retrieving file: /dtbs/5.18.0-0.deb11.4-armmp/"imx6q-sabrelite".dtb
  ** File not found /dtbs/5.18.0-0.deb11.4-armmp/"imx6q-sabrelite".dtb **

CONFIG_DEFAULT_DEVICE_TREE option is string typed, so __stringify() is
adding extra quotes. Remove this.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Acked-by: Troy Kisky <troy.kisky@boundarydevices.com>
2022-10-21 11:54:13 +02:00
Marcel Ziswiler
16d6457d84 verdin-imx8mm: verdin-imx8mp: drop obsolete net/phy configs
Drop obsolete networking/PHY related configuration defines.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-10-21 11:54:13 +02:00
Soeren Moch
8d2cbb096c board: tbs2910: Add serial rx buffer in defconfig
... to avoid loosing characters when pasting text into the serial console.
This allows to remove the workaround to disable the vidconsole output
when no HDMI device is detected. This workaround only was there to speed-up
serial console processing.

Signed-off-by: Soeren Moch <smoch@web.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-10-21 11:54:13 +02:00
Marek Vasut
5302576e93 ARM: dts: imx8mm: Swap i.MX8M Mini Menlo board UARTs back
The first production revision of the MX8M Mini Menlo board implements
a hardware change which swaps console UART and another UART connector.
Implement the swap, which maps the console UART back to the way Verdin
console is mapped.

Signed-off-by: Marek Vasut <marex@denx.de>
2022-10-20 17:35:52 +02:00
Frieder Schrempf
27effdd16b imx: kontron-sl-mx8mm: Migrate to use CONFIG_EXTRA_ENV_TEXT
Move the environment from the board header to a separate text file
and also drop those variables that are already set in env_default.h
from the Kconfig options.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-10-20 17:35:51 +02:00
Frieder Schrempf
7dd6af85bc imx: imx6ul: kontron-sl-mx6ul: Migrate to use CONFIG_EXTRA_ENV_TEXT
Move the environment from the board header to a separate text file
and also drop those variables that are already set in env_default.h
from the Kconfig options or are not needed anymore.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
2022-10-20 17:35:51 +02:00
Andrew Davis
b9add6413d dma: Transfer dma_ops should use DMA address types
DMA operations should function on DMA addresses, not virtual addresses.
Although these are usually the same in U-Boot, it is more correct
to be explicit with our types here.

Signed-off-by: Andrew Davis <afd@ti.com>
2022-10-18 13:40:40 -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
Ilias Apalodimas
70089c13a7 efi_loader: remove efi_delete_handle on loadfile2
Loadfile2 code is installing two protocols on it's own handle
and uses efi_delete_handle() to clean it up on failure(s). However
commit 05c4c9e21a ("efi_loader: define internal implementations of
install/uninstallmultiple") prepares the ground for us to clean up
efi_delete_handle() used in favor of Install/UninstallMultipleProtocol.

While at it clean up the non needed void casts to (void *) on the
protolcol installation.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-16 12:23:22 +02:00
Paul Barker
c98f6fed93 spi: Implement spi_set_speed
This function is already defined in spi.h but no implementation of it
currently exists in the tree. The implementation is based on the static
function spi_set_speed_mode(). The function prototype is modified so
that an success or error condition can be returned to the caller.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-10-16 12:23:22 +02:00
Pali Rohár
767ecc5f9f Nokia RX-51: Remove CONFIG_UBI_SIZE
CONFIG_UBI_SIZE option is not used, so remove it.

Signed-off-by: Pali Rohár <pali@kernel.org>
2022-10-12 11:11:58 -04:00
Ignacio Zamora
34803205eb Fix typo in CONFIG_USBNET_DEVADDR
Fix typo that was caused by the same feature being split in to 2 different
configuration options. Replace CONFIG_USBNET_DEVADDR with
CONFIG_USBNET_DEV_ADDR

Signed-off-by: Ignacio Zamora <nachopitt@gmail.com>
2022-10-12 11:11:19 -04:00
Steven Lawrance
7c5eeb8309 image-pre-load: Move macros/definitions to image.h
Putting these definitions in a header will allow signatures to be
validated independently of bootm.

Signed-off-by: Steven Lawrance <steven.lawrance@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-10-11 15:40:48 -04:00
Tom Rini
300077cf8c Xilinx changes for v2023.01-rc1 (round 3)
fpga:
 - Create new uclass
 - Get rid of FPGA_DEBUG and use logging infrastructure
 
 zynq:
 - Enable early EEPROM decoding
 - Some DT updates
 
 zynqmp:
 - Use OCM_BANK_0 to check config loading permission
 - Change config object loading in SPL
 - Some DT updates
 
 net:
 - emaclite: Enable driver for RISC-V
 
 xilinx:
 - Fix static checker warnings
 - Fix GCC12 warning
 
 sdhci:
 - Read PD id from DT
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Merge tag 'xilinx-for-v2023.01-rc1-v3' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2023.01-rc1 (round 3)

fpga:
- Create new uclass
- Get rid of FPGA_DEBUG and use logging infrastructure

zynq:
- Enable early EEPROM decoding
- Some DT updates

zynqmp:
- Use OCM_BANK_0 to check config loading permission
- Change config object loading in SPL
- Some DT updates

net:
- emaclite: Enable driver for RISC-V

xilinx:
- Fix static checker warnings
- Fix GCC12 warning

sdhci:
- Read PD id from DT
2022-10-11 09:57:08 -04:00
Tom Rini
c4c32e3596 Merge https://source.denx.de/u-boot/custodians/u-boot-usb 2022-10-10 15:38:14 -04:00
Patrice Chotard
84e561407a phy: Add generic_{setup,shutdown}_phy() helpers
In drivers usb/host/{ehci,ohci}-generic.c, {ehci,ohci}_setup_phy() and
{ehci,ohci}_shutdown_phy() shares 95% of common code.
Factorize this code in new generic_{setup,shudown}_phy() functions.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
2022-10-10 18:08:18 +02:00
Heinrich Schuchardt
ef1857641b efi_loader: internal CloseProtocol
Allow avoiding using EFI_CALL() when closing a protocol by providing an
internal function.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-10-10 16:34:25 +02:00
Heinrich Schuchardt
4d9668befc efi_loader: don't export efi_remove_all_protocols
This function is only used inside efi_boottime.c and is not safe to use
outside of this context.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-10-10 16:34:25 +02:00
Tom Rini
73e741b8ee Merge tag 'u-boot-nand-20221009' of https://source.denx.de/u-boot/custodians/u-boot-nand-flash into next
- mtd: Update the function name to 'rfree'
 - Support NAND ONFI EDO mode for imx8mn architecture
 - dm: clk: add missing stub when CONFIG_CLK is deactivated
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Merge tag 'u-boot-nand-20221009' of https://source.denx.de/u-boot/custodians/u-boot-nand-flash

- mtd: Update the function name to 'rfree'
- Support NAND ONFI EDO mode for imx8mn architecture
- dm: clk: add missing stub when CONFIG_CLK is deactivated
2022-10-10 08:17:08 -04:00
Fabio Estevam
7676811867 mtd: Update the function name to 'rfree'
Since commit 8d38a8459b ("mtd: Rename free() to rfree()")
the function has been renamed to rfree(), so update the description
inside the mtd_oob_region structure as well.

Fixes: 8d38a8459b ("mtd: Rename free() to rfree()")
Reported-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-10-09 10:42:26 +02:00
Michael Trimarchi
90cce0582d mtd: mxs_nand: Support EDO mode for imx8mn architecture
Add support for imx8mn architecture in order to run the NAND
in fast edo mode.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-10-09 10:42:26 +02:00
Dario Binacchi
c9dc8e7124 dm: clk: add missing stub when CONFIG_CLK is deactivated
Add missing stub for functions [devm_]clk_...() when CONFIG_CLK is
deactivated.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-10-09 10:42:20 +02:00
Tom Rini
11ef7f07ce Pull request for efi-2023-01-rc1
UEFI:
 
 * Provide driver binding protocol to registered events for block devices
 * Code simplification and refactoring
 * Fix pylint errors in test_efi_secboot
 
 Other:
 
 * Improve checks for register ranges
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Merge tag 'efi-2023-01-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2023-01-rc1

UEFI:

* Provide driver binding protocol to registered events for block devices
* Code simplification and refactoring
* Fix pylint errors in test_efi_secboot

Other:

* Improve checks for register ranges
2022-10-07 11:51:05 -04:00
Jim Liu
9ca71c9c19 arm: nuvoton: Add support for Nuvoton NPCM845 BMC
Add basic support for the Nuvoton NPCM845 EVB (Arbel).

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
2022-10-06 21:05:17 -04:00
Ovidiu Panait
d63fc99435 common/board_f: introduce arch_setup_dest_addr()
In order to move ppc-specific code out of setup_dest_addr(), provide an
arch-specific variant arch_setup_dest_addr(), that can be used by
architecture code to fix up the initial reloc address.

It is called at the end of setup_dest_addr() initcall and the default
implementation is a nop stub.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
2022-10-06 21:05:17 -04:00
Ilias Apalodimas
05c4c9e21a efi_loader: define internal implementations of install/uninstallmultiple
A following patch is cleaning up the core EFI code trying to remove
sequences of efi_create_handle, efi_add_protocol.

Although this works fine there's a problem with the latter since it is
usually combined with efi_delete_handle() which blindly removes all
protocols on a handle and deletes the handle.  We should try to adhere to
the EFI spec which only deletes a handle if the last instance of a protocol
has been removed.  Another problem is that efi_delete_handle() never checks
for opened protocols,  but the EFI spec defines that the caller is
responsible for ensuring that there are no references to a protocol
interface that is going to be removed.

So let's fix this by replacing all callsites of
efi_create_handle(), efi_add_protocol() , efi_delete_handle() with
Install/UninstallMultipleProtocol.

In order to do that redefine functions that can be used by the U-Boot
proper internally and add '_ext' variants that will be used from the
EFI API

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-10-06 22:54:58 +02:00
Heinrich Schuchardt
f05911a126 efi_driver: move event registration to driver
Move the registration of events for the addition and removal of block
devices to the block device driver. Here we can add a reference to the
EFI Driver Binding protocol as context.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06 22:54:58 +02:00
Heinrich Schuchardt
8f8fe1d458 efi_driver: add init function to EFI block driver
For handling added and removed block devices we need to register events
which has to be done when the driver is installed.

This patch only creates an empty init function that will be filled with
code later on. The function needs to be called before any EFI block devices
are used. Move the efi_driver_init() call to early init.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06 22:54:58 +02:00
Heinrich Schuchardt
ec4f675f9e efi_driver: provide driver binding protocol to bind function
DisconnectController() is based on the open protocol information created
when the driver opens a protocol with BY_CHILD_CONTROLLER or BY_DRIVER.

To create an open protocol information it is required to supply the handle
of the driver as agent handle. This information is available as field
DriverBindingHandle in the driver binding protocol.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06 22:54:57 +02:00
Heinrich Schuchardt
df31fedd39 doc: documentation of EFI driver binding protocol
* Convert code comments in include/efi_driver.h to Sphinx style.
* Add include/efi_driver.h to the HTML documentation.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-10-06 22:54:57 +02:00
Heinrich Schuchardt
43a5891c66 efi_driver: fix error handling
If creating the block device fails,

* delete all created objects and references
* close the protocol interface on the controller

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06 22:54:57 +02:00
Heinrich Schuchardt
16b27b67c5 efi_loader: function to unlink udevice and handle
When deleting a device or a handle we must remove the link between the two
to avoid dangling references.

Provide function efi_unlink_dev() for this purpose.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06 22:54:57 +02:00
Paul Barker
39434a9b25 efi: Add string conversion helper
Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-10-06 22:54:57 +02:00
Holger Brunck
88383fd864 board/km: remove kirkwood boards
These boards are out of maintenance and can be removed.

Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-10-06 10:13:38 +02:00
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
5e96925ba5 dm: core: Complete phandle implementation using the other FDT
We need to be able to look up phandles in any FDT, not just the control
FDT. Use the 'other' FDT to test this, with a helper function which gets
this as an oftree that can then we used as needed.

Add a few more tests and some comments at the top of the file, to explain
what is going on.

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