When running, if the devicetree failed to come from the expected source,
show a warning, e.g:
U-Boot ...
DRAM: 128 MiB
Core: 42 devices, 11 uclasses, devicetree: separate
Warning: Unexpected devicetree source (not from a prior stage)
Warning: U-Boot may not function properly
Flash: 64 MiB
...
These warnings should only appear if the board config has been changed, or
the prior stage is broken.
Signed-off-by: Simon Glass <sjg@chromium.org>
U-Boot always needs some sort of a device tree in the build. Some boards
never actually use this, at least in production systems, since a prior
firmware stage sets one up and passes it to U-Boot. At present the only
mechanism to do that is with custom function (OF_BOARD), but future work
will include a standard way of doing this ('standard passage').
It can be confusing to see a device tree emitted from the U-Boot build in
this situation. Add an option to drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Boards which define OF_HAS_PRIOR_STAGE must define OF_BOARD at present,
since a custom function is the only way to obtain the devicetree at
runtime.
Add a build error when this requirement is not met, to avoid accepting
any patches which break this requirement.
Add an allowlist for boards which use it, currently none. This allowlist
can be updated for local development, if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: change of_whitelist to of_allowlist]
Signed-off-by: Tom Rini <trini@konsulko.com>
Use this new Kconfig instead of OF_BOARD, so we know for sure which boards
obtain their devicetree from a prior stage. Leave sandbox alone since it
does not. Also don't touch xilinx_versal_virt since it does not have a
specific TARGET Kconfig.
This option implies OF_BOARD for now, but with future work standard
passage may be used instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Add rpi_4_32b and rpi_arm64 to the list of boards converted]
Signed-off-by: Tom Rini <trini@konsulko.com>
When U-Boot is started from another firmware program, not just a prior
phase of U-Boot, special behaviour is typically used. In particular, the
device tree may come from that prior stage.
At present this is sort-of indicated by OF_BOARD, although the
correlation is not 1:1, since that option simply means that the board has
a custom mechanism for obtaining the device tree. For example, sandbox
defines OF_BOARD. Also the board_fdt_blob_setup() function can in fact
make use of the devicetree in U-Boot if it wishes, as used by
dragonboard410c until very recently.
Add an explicit Kconfig for this situation. Update the OF_BOARD option to
more-accurately reflect what it is doing, e.g. for sandbox.
Drop the docs in the README as it is out of date.
Signed-off-by: Simon Glass <sjg@chromium.org>
It can be confusing to figure out where the devicetree came from. It seems
important enough to warrant a message during boot. Add information about
the number of devices and uclasses too since it is helpful to have some
idea what is going on with driver model.
Report the devicetree source in bdinfo too.
This looks something like this, with > marking the new line.
U-Boot 2021.10-00190 (Oct 30 2021 - 09:01:29 -0600)
DRAM: 128 MiB
> Core: 42 devices, 11 uclasses, devicetree: passage
Flash: 64 MiB
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this override function is called even when OF_BOARD is not
enabled. This makes it impossible to disable this feature and in fact
makes the OF_BOARD option useless.
Reinstate its intended purpose, so that it is possible to switch between
the appended devicetree and one provided by the board's custom function.
A follower patch adds warnings for this scenario, but for now we don't
have a Kconfig that definitively tells us that OF_BOARD should be used.
Signed-off-by: Simon Glass <sjg@chromium.org>
This function should only be called when OF_CONTROL is enabled. It
fails in fdtdec_prepare_fdt() anyway, since gd->fdt_blob stays as NULL
if OF_CONTROL is not enabled.
Drop this useless check.
Signed-off-by: Simon Glass <sjg@chromium.org>
This logic is a bit convoluted for one function. Move the mulit-FIT part
into its own function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
At present one must hack the Makefile to see what is going on with these
files. Also it doesn't quite work correctly.
Fix this by using an environment variable for debugging. Update the docs
also.
Signed-off-by: Simon Glass <sjg@chromium.org>
This was added as a hack to work around not having an in-tree devicetree.
Now that this is fixed it is not needed.
Drop it.
Signed-off-by: Simon Glass <sjg@chromium.org>
This should not be a separate option from OF_SEPARATE. It is a run-time
option to override the devicetree, even if present.
Move the option out of the choice.
Disable BINMAN_FDT for a few boards which don't actually use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an empty version of this file, so that we can at least build this
board when devicetrees are required.
Signed-off-by: Simon Glass <sjg@chromium.org>
This uses QEMU virt which creates its own devicetree.
Add an empty version of this file, so that we can at least build this
board when devicetrees are required.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an empty devicetree file for these boards. It seems to be possible to
obtain a real one from another bootloader called 'bolt' but I will leave
this to the maintainer.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an empty file to prevent build errors when building with
CONFIG_OF_SEPARATE enabled.
Unfortunately there are no build instructions in the U-Boot tree to enable
a real file to be created.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an empty version of this file, so that we can at least build this
board when devicetrees are required.
The real devicetree is created by the Xen project on-the-fly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sync these file, obtained from Linux v5.15.
Add a note for the maintainer, and SPDX lines where they are missing.
The added lines are:
SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
Note, this matches the text in those files, but is not the same as the
GPL-2.0 of some files.
[1] https://releases.linaro.org/android/reference-lcr/juno/7.1-17.05/
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Sync these files, obtained from Linux v5.15.
This adds a devicetree file for rpi_4 which was not there before.
Testing shows no change so far as I can see:
- boots to U-Boot prompt on rpi0, rpi2
- boots to distro on rpi3
- boots to distro on rpi4
I am assuming that syncing with Linux is safe, but the maintainer should
know for sure.
Signed-off-by: Simon Glass <sjg@chromium.org>
This uses QEMU virt which creates its own devicetree.
Copy the existing empty version of this file, so splitting the existing
qemu-virt into two, since anyone actually trying to use this will need a
different devicetree for 32- and 64-bit machines.
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canaonical.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This uses QEMU virt which creates its own devicetree.
Add an empty version of this file, so that we can at least build this
board when devicetrees are required.
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canaonical.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This uses QEMU virt which creates its own devicetree.
Add an empty version of this file, so that we can at least build this
board when devicetrees are required.
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canaonical.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
QEMU currently generates a devicetree for use with U-Boot. Explain how to
obtain it.
Also explain how to merge it to produce a devicetree with the U-Boot
features included.
Signed-off-by: Simon Glass <sjg@chromium.org>
Without this option QEMU appears to hang. Add it to avoid confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
doc/usage/index.rst in branch origin/next includes usage/environment twice.
Remove the duplicate entry.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The global data pointer is not used in this driver, remove it's
declaration.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Use more appropriate resource_size() function when working with data in
struct resource.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Function mvebu_pcie_setup_wins() sets up all other BARs, so move setup of
BAR[0] to this function to have common code at one place.
In the past, commit 193a1e9f19 ("pci: pci_mvebu: set BAR0 after memory
space is set") moved setup of BAR[0] to another location, due to ath10k
not working in kernel, but the reason why was unknown, but it seems to
work now, and we think the issue then was cause by the PCIe Root Port
presenting itself as a Memory Controller and therefore U-Boot's code
have overwritten the BAR. Since the driver now ignores any write
operations to PCIe Root Port BARs, this should not be an issue anymore.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Commit "fw_setenv: lock the flash only if it was locked before"
checks for Locked status with uninitialized erase data.
Address by moving the test for MEMISLOCKED.
Fixes: 8a726b852502 ("fw_setenv: lock the flash only if it was locked before")
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Testing on Armada XP with an EEPROM using register address with size
of 2 has shown, that the register address bytes are sent to the I2C
EEPROM in the incorrect order. This patch swabs the address bytes so
that the correct address is transferred to the I2C device.
BTW: This worked without any issues before migrating Armada XP to
DM I2C.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Pali Rohár <pali@kernel.org>
Cc: Marek Behún <marek.behun@nic.cz>
Tested-by: Marek Behún <marek.behun@nic.cz>
There is no point to hide/disable fatal errors via debug() macro.
Print fatal errors loudly.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Include file debug_uart.h already contains documentation how to use it.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
There is no maintainer entry for serial_mvebu_a3700.c. Add entry with Pali
and Stefan as maintainers.
Signed-off-by: Pali Rohár <pali@kernel.org>
Acked-by: Stefan Roese <sr@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
There is no maintainer entry for pci-aardvark.c. Add entry for
pci-aardvark.c and pci_mvebu.c with Pali and Stefan as maintainers.
Signed-off-by: Pali Rohár <pali@kernel.org>
Acked-by: Stefan Roese <sr@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
This is a backport from Marvell U-Boot:
https://github.com/MarvellEmbeddedProcessors/u-boot-marvell
commit 381d029e7a ("fix: serdes: a38x, a39x: Improve USB3 electrical
configuration")
Improves electrical USB3 receiver jitter tolerance test:
- De-Emphasize force, in functional mode the transmitter should always
have 3.5db de-emphasize, so we are forcing it.
- After forcing De-Emphasize, choose 3.5db (After forcing, default is
6dB so need to change it to 3.5dB).
- Align90 set to 0x58 - this is the sample point in the receiver, after
the clock is recovered this sampler samples at the chosen value, usually
it is supposed to be 0x60(which is the center of the eye), but sometimes
after adding jitter and ISI the center of the eye can move slightly and
the sample point is not necessarily the exact center, and after
optimization (searching the middle of the eye manually) it was seen that
the center of the eye is actually 0x58 and not 0x60.
- FFE Res and FFE Cap set to 0xE & 0xF respectively: improves this
settings is adequate according to how the USB3 spec defines the
interconnect, thus improves USB3 jitter tolerance settings.
- Change the resolution of the DFE to 0x3 which is 6mV(highest
resolution) , this avoids the DFE to saturate and cease to work.
- HPF set to 0x3 which is 5Khz high pass filter, the function of the HPF
is to filter the low frequency patterns(below 5Khz) to make sure that
the signal is not a noise, the setting before was 0x1(205Khz), and the
change came since the USB3 CP0 pattern, that is used in the USB3 jitter
tolerance testing, is similar to PRBS15, which has 2^15=32768bits which
is 32768*200ps (200ps is one Unit interval in USB3(5Gbps)) = 6.5us,
which is in frequency terms: 152Khz. since the PRBS15 is a random
pattern and can theoretically have once in a while a pattern that will
be at frequency of 152Khz, hence the previous setting (205khz HPF) can
possibly filter this pattern which can cause to an error in the
receiver, thus this change to avoid such scenarios.
Signed-off-by: Stefan Eichenberger <eichest@gmail.com>
Signed-off-by: René Straub <rene.straub@netmodule.com>
Reviewed-by: Stefan Roese <sr@denx.de>
