Commit graph

60802 commits

Author SHA1 Message Date
Neil Armstrong
3dcdf85efd power: domain: meson-gx-pwrc: add G12A support
Add Amlogic G12A support for the gx-pwrc driver, aligned on the
Linux v5.2 driver.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2019-10-18 10:46:08 +02:00
Daniel Drake
4ae9747804 board: amlogic: document alternative libretech-cc installation methods
As already documented in this README, several binaries must be
glued together in order to boot the device.

Extend the documentation to cover the prebuilt binaries
(saving you the hassle of installing ancient cross-compilers),
and also mention the open source replacements for the encryption
tool (which is especially useful if you want to avoid requiring
32-bit x86 binaries in your build system).

Signed-off-by: Daniel Drake <drake@endlessm.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-10-18 10:46:08 +02:00
Atish Patra
70d64a4c76 RISC-V: Align boot image header with Linux
The released Linux boot image header in v5.3 is different from the
one present in U-Boot. Align the header with the new version. The
changes in Linux are backward compatible. Previous U-Boot releases
with older header will continue to work as well. As v5.3 kernel is
the first one to support image header, there is no compatibility
issue between new U-Boot (with this patch) and older kernel.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2019-10-18 09:04:19 +08:00
Sagar Shrikant Kadam
b332a89799 configs: fu540: enable gpio driver
Enable the DM based GPIO driver for FU540-C000 SoC.

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-18 09:04:08 +08:00
Sagar Shrikant Kadam
d26b40450b gpio: sifive: add support for DM based gpio driver for FU540-SoC
This patch adds a DM based driver model for gpio controller present in
FU540-C000 SoC on HiFive Unleashed A00 board. This SoC has one GPIO
bank and 16 GPIO lines in total, out of which GPIO0 to GPIO9 and
GPIO15 are routed to the J1 header on the board.

This implementation is ported from linux based gpio driver submitted
for review by Wesley W. Terpstra <wesley@sifive.com> and/or Atish Patra
<atish.patra@wdc.com> (many thanks !!). The linux driver can be referred
here [1]

[1]: https://lkml.org/lkml/2018/10/9/1103

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-18 09:04:01 +08:00
Heinrich Schuchardt
5cc349bb09 efi_loader: enable CONFIG_CMD_NVEDIT_EFI on QEMU
To reduce the default image size CONFIG_CMD_NVEDIT_EFI was disabled by
default. Re-enable it on the QEMU platforms supporting the UEFI sub-system.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:56 +02:00
AKASHI Takahiro
867400677c efi_loader: disk: install FILE_SYSTEM_PROTOCOL only if available
In the current implementation, EFI_SIMPLEFILE_SYSTEM_PROTOCOL is always
installed to all the partitions even if some of them may house no file
system.

With this patch, that protocol will be installed only if any file system
exists.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:56 +02:00
AKASHI Takahiro
b7cd95627b fs: add fs_get_type() for current filesystem type
This function is a variant of fs_get_type_name() and returns a filesystem
type with which the current device is associated.
We don't want to export fs_type variable directly because we have to take
care of it consistently within fs.c.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:56 +02:00
AKASHI Takahiro
185aed7855 fs: clean up around fs_type
fs_ls(), fs_mkdir() and fs_unlink() sets fs_type to FS_TYPE_ANY
explicitly, but it is redundant as they call fs_close().
So just remove those lines.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:56 +02:00
Heinrich Schuchardt
e4bad9f9f0 fs: update fs_close() description
Provide a more detailed description of fs_close().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:55 +02:00
AKASHI Takahiro
64f49eb7d0 fs: export fs_close()
fs_close() closes the connection to a file system which opened with
either fs_set_blk_dev() or fs_set_dev_with_part(). Many file system
functions implicitly call fs_close(), e.g. fs_closedir(), fs_exist(),
fs_ln(), fs_ls(), fs_mkdir(), fs_read(), fs_size(), fs_write()
and fs_unlink().
So just export it.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:55 +02:00
AKASHI Takahiro
08c51fff30 efi_loader: device_path: check against file path length
device_path strcuture has 2 bytes of "length" field, and so
file path length should not exceed this limit, 65535.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-10-17 19:19:55 +02:00
Tom Rini
a2fce50455 Merge tag 'for-v2020.01' of https://gitlab.denx.de/u-boot/custodians/u-boot-ubi
ubi enhancements for 2020.01
- provide a way for skipping crc checks ported from linux, and add an
  U-Boot command to set this flag on already installed systems.
- fix redundand environment management
2019-10-17 07:26:16 -04:00
Tom Rini
c83b1bb923 binman enhancements:
- Dropping some test Elf files and building them from source instead
 - Refactoring of x86 16-bit entries
 - Support for SPL symbols within sections
 - Handle the 'notes' sections and hidden symbols in recent binutils
 - Improved error reporting with a tool fails
 
 libfdt and documentation fixes
 vboot required-key test
 driver model power-domain controls
 patman Message-Id enhancement
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Merge tag 'dm-pull-15oct19' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm

binman enhancements:
- Dropping some test Elf files and building them from source instead
- Refactoring of x86 16-bit entries
- Support for SPL symbols within sections
- Handle the 'notes' sections and hidden symbols in recent binutils
- Improved error reporting with a tool fails

libfdt and documentation fixes
vboot required-key test
driver model power-domain controls
patman Message-Id enhancement
2019-10-16 18:10:31 -04:00
Tom Rini
d2a93a8863 Merge branch '2019-10-15-master-imports'
- Split travis jobs again so we don't have failures due to excessive
  build times.
- Android image updates
- cscope bugfix, update ARM maintainers entry, drop H2200 platform.
2019-10-16 18:10:01 -04:00
Tom Rini
568356d8d6 travis: Split and rename xilinx ARM in to two jobs
Split the ARMv7 and AArch64 platforms into separate jobs, to avoid them
taking too long to build overall.  Also rename them from "Xilinx" to
"Zynq*" to reflect slightly better what is being built and to pull in a
few more board matches.

Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-10-16 18:09:55 -04:00
Tom Rini
95b2215434 travis: Split sun8i in to two jobs
Split the 32bit and 64bit platforms into separate jobs, to avoid them
taking too long to build overall.

Cc: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-10-16 18:09:26 -04:00
Tom Rini
984c0051a5 travis: Split i.MX jobs a bit more
- Split "tqc" and "technexion" out into their own jobs and exclude
  them from the catch-all jobs
- Clarify the job labels a little more.

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2019-10-16 18:09:26 -04:00
Tom Rini
2ada73ea1a MAINTAINERS: Update ARM entry
Fully take over the ARM maintainers entry.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
2019-10-16 18:09:26 -04:00
Andy Shevchenko
e15a951da4 Makefile: Skip symbolic links to files for cscope
cscope complains that it can't find files that appears to be symbolic links

cscope: cannot find file tools/binman/test/u_boot_binman_syms_bad.c
cscope: cannot find file tools/version.h

`find -L` tests properties, but name, and cscope can't cope with symbolic
links (a lot of bugs in upstream were simple closed as kinda invalid).

To work around the problem, exclude symbolic links from the cscope.files.
Note, it's done in two pass to speed up the process (`-exec realpath ...`
approach is not portable and introduces a 3x delay).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-10-16 18:09:26 -04:00
Heinrich Schuchardt
cb578f0a87 arm: remove the H2200 board
U-Boot cannot be built for h2200_defconfig with CONFIG_DM=y.

The maintainer Lukasz Dalek suggested to remove the board.
https://lists.denx.de/pipermail/u-boot/2019-August/380685.html

Cc: Lukasz Dalek <luk0104@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
[trini: As this is the last non-toradex PXA board, update travis too]
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-10-16 18:09:08 -04:00
Philippe Reynes
6116234174 ubi: env: fix redundand management
We check (with a #if defined()) the config ENV_UBI_VOLUME_REDUND
to know if there is a redundant env. But this config is a string
and is always defined with env is in ubi, so we always consider
that a redundand env is used.

To fix this issue, I've added a hidden flag ENV_UBI_IS_VOLUME_REDUND
that is true when ENV_UBI_VOLUME_REDUND is not "". Then, I check
this flag in the code, instead of the string ENV_UBI_VOLUME_REDUND.

hs: fixed typo s/condider/consider

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2019-10-16 05:53:37 +02:00
Stefan Roese
e6661cf767 ubi: Add "skipcheck" command to set/clear this bit in the UBI volume hdr
U-Boot now supports the "skip_check" flag to optionally skip the CRC
check at open time. Currently its only possible to set this bit upon
UBI volume creation. But it might be very useful to also set this bit
on already installed systems (e.g. field upgrade) to make also use of
the boot-time decrease on those systems.

This patch now adds a new "ubi" command "ubi skipcheck" to set or clear
this bit in the UBI volume header:

=> ubi skipcheck rootfs0 on
Setting skip_check on volume rootfs0

BTW: This saves approx. 10 seconds Linux bootup time on a MT7688 based
target with 128MiB of SPI NAND.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Quentin Schulz <quentin.schulz@bootlin.com>
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Andreas Dannenberg <dannenberg@ti.com>
2019-10-16 05:42:36 +02:00
Stefan Roese
524acec47c ubi: Print skip_check in ubi_dump_vol_info()
It might be interesting, if "skip_check" is set or not, so lets print
this flag in ubi_dump_vol_info() as well.

hs: fix typo in commit message

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Quentin Schulz <quentin.schulz@bootlin.com>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
2019-10-16 05:42:27 +02:00
Quentin Schulz
386f20cade ubi: provide a way to skip CRC checks
Some users of static UBI volumes implement their own integrity check,
thus making the volume CRC check done at open time useless. For
instance, this is the case when one use the ubiblock + dm-verity +
squashfs combination, where dm-verity already checks integrity of the
block device but this time at the block granularity instead of verifying
the whole volume.

Skipping this test drastically improves the boot-time.

Adapted to U-Boot by Stefan Roese.

Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Quentin Schulz <quentin.schulz@bootlin.com>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
2019-10-16 05:42:27 +02:00
AKASHI Takahiro
d11ef4d54c sandbox: fix build error due to missing struct udevice definition
Without this patch, compiling may potentially fail.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Patrick Delaunay
2a43dbdf96 dm: Tidy up dump output when there are many devices
At present the 'Index' column of 'dm tree' assumes there is
two digits, this patch increase it to 3 digits.

It also aligns output of 'dm uclass', assuming the same 3 digits index.

The boards with CONFIG_PINCTRL_FULL activated have one pinconfig
by pin configuration, so they can have more than 100 devices
pinconfig (for example with stm32mp157c-ev1 board we have
106 pinconfig node).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Patrick Delaunay
e878b53a79 dm: pinctrl: introduce PINCONF_RECURSIVE option
In the Linux pinctrl binding, the pin configuration nodes don't need to
be direct children of the pin controller device (may be grandchildren for
example). This behavior is managed with the pinconfig u-class which
recursively bind all the sub-node of the pin controller.

But for some binding (when pin configuration is only children of pin
controller) that is not necessary. U-Boot can save memory and reduce
the number of pinconf instance when this feature is deactivated
(for arch stm32mp for example for SPL).

This patch allows to control this feature with a new option
CONFIG_PINCONF_RECURSIVE when it is possible for each individual
pin controller device.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Fixed CONFIG_IF_ENABLED() condition, added __maybe_unused:
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Anatolij Gustschin
52edfed65d dm: core: device: switch off power domain after device removal
The power domain associated with a device is enabled when probing,
but currently the domain remains enabled when the device is removed.
Some boards started to disable power domains for selected devices
via custom board_quiesce_devices(), but it doesn't work in many
cases, i. e. because devices still can be accessed later in
.remove() callback on behalf of dm_remove_devices_flags().

Utilize the DM core to power off the device power domain, but add a
device flag to be able to selectively let the power domain enabled
after device removal. This might be required for devices that must
remain enabled when booting OS, i. e. serial console for debug
output, etc.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Lokesh Vutla
0cf795a802 power: domain: Introduce dev_power_domain_off
Add dev_power_domain_off() api to disable all the power-domains
corresponding to a device

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Lokesh Vutla
af17b0dad5 remoteproc: k3_arm64: Enable DM_FLAG_DEFAULT_PD_CTRL_OFF
Enable DM_FLAG_DEFAULT_PD_CTRL_OFF for arm64 remote core so that
pd can be enabled after loading the image.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Lokesh Vutla
af94ad418d dm: core: Allow for not controlling the power-domain by DM framework
In some remoteproc cases, enabling the power domain of the core will
start running the core. In such cases image should be loaded before
enabling the power domain. But the current DM framework enables the
power-domain by default during probe. This is causing the remotecore
to start and crash as there is no valid image loaded.

In order to avoid this introduce a DM flag that doesn't allow for
enabling/disabling the power-domain by DM framework.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Jean-Jacques Hiblot
d8efa2ce2a dm: device: Fix typo in the non-DEVRES version of devm_kmalloc_array()
When DEVRES is not set, devm_kmalloc_array() is spelled
devm_kmaloc_array() (with one 'l' only).
Fixing it so that the name is the same with and without DEVRES.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:03 -06:00
Douglas Anderson
833e4192cd patman: Use the Change-Id, version, and prefix in the Message-Id
As per the centithread on ksummit-discuss [1], there are folks who
feel that if a Change-Id is present in a developer's local commit that
said Change-Id could be interesting to include in upstream posts.
Specifically if two commits are posted with the same Change-Id there's
a reasonable chance that they are either the same commit or a newer
version of the same commit.  Specifically this is because that's how
gerrit has trained people to work.

There is much angst about Change-Id in upstream Linux, but one thing
that seems safe and non-controversial is to include the Change-Id as
part of the string of crud that makes up a Message-Id.

Let's give that a try.

In theory (if there is enough adoption) this could help a tool more
reliably find various versions of a commit.  This actually might work
pretty well for U-Boot where (I believe) quite a number of developers
use patman, so there could be critical mass (assuming that enough of
these people also use a git hook that adds Change-Id to their
commits).  I was able to find this git hook by searching for "gerrit
change id git hook" in my favorite search engine.

In theory one could imagine something like this could be integrated
into other tools, possibly even git-send-email.  Getting it into
patman seems like a sane first step, though.

NOTE: this patch is being posted using a patman containing this patch,
so you should be able to see the Message-Id of this patch and see that
it contains my local Change-Id, which ends in 2b9 if you want to
check.

[1] https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2019-August/006739.html

Signed-off-by: Douglas Anderson <dianders@chromium.org>
2019-10-15 08:40:03 -06:00
Philippe Reynes
ed7ea058a9 cmd: aes: use map_sysmem when accessing memory
The aes command used to segfault when accessing memory in sandbox.
The pointer accesses should be mapped.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-15 08:40:03 -06:00
Philippe Reynes
5fff9b3bc9 sandbox64: enable command aes
This commit add the support of command aes.
Then, it may be used on pytest.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-15 08:40:03 -06:00
Philippe Reynes
8d69439550 sandbox: enable command aes
This commit enable the command aes on sandbox.
Then, it may be used on pytest.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-15 08:40:03 -06:00
Giulio Benetti
4ab6a45ec7 libfdt: fix typo on comment
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
2019-10-15 08:40:03 -06:00
Daniele Alessandrelli
0772a1f497 rsa: Return immediately if required-key verification fails
Currently, if image verification with a required key fails, rsa_verify()
code tries to find another key to verify the FIT image. This however, is
not the intended behavior as the documentation says that required keys
"must be verified for the image / configuration to be considered valid".

This patch fixes the issue by making rsa_verify() return immediately if
the verification of a required key fails.

Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@gmail.com>
2019-10-15 08:40:03 -06:00
Philippe Reynes
ce5172cf65 pytest: vboot: add a test for required key
This commit add a test in the vboot test to check that
when a required key is asked, only FIT signed with this
key is used/accepted by u-boot.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-15 08:40:02 -06:00
Michael Trimarchi
36a90eda84 dm: pinctrl: Skip not associated gpio phandle and rise a warning message
Skip not associated gpio phandle let register the other gpios on a group.
We need anyway to send out a warning to the user to fix their uboot-board.dtsi.
Thhe handle id can be found inside the decompiled dtb

dtc -I dtb -O dts -o devicetree.dts spl/u-boot-spl.dtb

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00
Peng Fan
f0cc4eae9a core: device: use dev_power_domain_on
When multiple power domains attached to a device, need power on
them all, so use dev_power_domain_on to do that.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-10-15 08:40:02 -06:00
Peng Fan
9c1e982218 power: domain: add dev_power_domain_on
Add this new API to power on multiple domains attached
to a device.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Changed to static inline and added a condition into C file:
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00
Thomas Fitzsimmons
640abba507 dm: spi: Do not assume first SPI bus
When CONFIG_OF_PRIOR_STAGE is enabled, this workaround was needed
before device_bind_common assigned request numbers sequentially in the
absence of aliases.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00
Thomas Fitzsimmons
7f3289bf6d dm: device: Request next sequence number
For CONFIG_OF_PRIOR_STAGE, in the absence of a device tree alias for a
given device, use the next request number for that type of device.
This allows aliases to be used when they're available, while still
allowing unaliased devices to be probed.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00
Kayla Theil
d8206ff198 tpm2: Don't assume active low reset value
The reset function sets the pin to 0 then 1 but if the pin is marked
ACTIVE_LOW in the DT it gets inverted and leaves the TPM in reset.
Let the gpio driver take care of the reset polarity.

Signed-off-by: Kayla Theil <kayla.theil@mixed-mode.de>
2019-10-15 08:40:02 -06:00
Matthias Brugger
7a3f15e718 dm: Fix default address cells return value
Default address cells value on the livetree access function
returns the wrong value. Fix this so that the value returned
corresponds to the device tree specification.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15 08:40:02 -06:00
Matthias Brugger
8076fc298e libfdt: Allow #size-cells of 0
The commit "libfdt: fdt_address_cells() and fdt_size_cells()" introduced
a bug as it consolidated code between the helpers for getting
be 0, and is frequently found so in practice for /cpus.  IEEE1275 only
requires implementations to handle 1..4 for #address-cells, although one
could make a case for #address-cells == #size-cells == 0 being used to
represent a bridge with a single port.

While we're there, it's not totally obvious that the existing implicit
cast of a u32 to int will give the correct results according to strict C,
although it does work in practice.  Straighten that up to cast only after
we've made our range checks.

This is based on upstream commit:
b8d6eca ("libfdt: Allow #size-cells of 0")
but misses the test cases,as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15 08:40:02 -06:00
Matthias Brugger
0ba41ce1b7 libfdt: return correct value if #size-cells property is not present
According to the device tree specification, the default value for
was not present.

This patch also makes fdt_address_cells() and fdt_size_cells() conform
to the behaviour documented in libfdt.h. The defaults are only returned
if fdt_getprop() returns -FDT_ERR_NOTFOUND, otherwise the actual error
is returned.

This is based on upstream commit:
aa7254d ("libfdt: return correct value if #size-cells property is not present")
but misses the test case part, as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-10-15 08:40:02 -06:00
Matthias Brugger
ce2dae3a44 libfdt: fdt_address_cells() and fdt_size_cells()
Add internal fdt_cells() to avoid copy and paste. Fix typo in
fdt_size_cells() documentation comment.

This is based in upstream commit:
c12b2b0 ("libfdt: fdt_address_cells() and fdt_size_cells()")
but misses the test cases, as we don't implement them in U-Boot.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-15 08:40:02 -06:00