Commit graph

78052 commits

Author SHA1 Message Date
Ovidiu Panait
4fef0a7b7e microblaze: exception: move privileged instruction exception out of v5 ifdef
The privileged instruction exception seems to have been introduced in
microblaze v7.00 along with MMU support, so having it wrapped in
MICROBLAZE_v5 ifdefs seems incorrect. Move it out of the ifdef, since all
recent microblaze versions support it.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Link: https://lore.kernel.org/r/20220213080925.1548411-1-ovidiu.panait@windriver.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2022-02-15 13:11:43 +01:00
Michal Simek
753a29522c xilinx: Remove GPIO_EXTRA_HEADER selection
Platform specific headers are empty that's why there is no need to include
them. That's why remove them for Zynq/ZynqMP and Versal.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/625b1be0b813e2b9a5323c0529f9c567bfe13e75.1643960446.git.michal.simek@xilinx.com
2022-02-15 13:06:13 +01:00
Michal Simek
25a5fa1c4c video: Add missing dependency for DM_GPIO
Seps driver also requires DM_GPIO to be enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/da8c25c19e5c723ed16a2a6b8494dfb967328567.1643960212.git.michal.simek@xilinx.com
2022-02-15 13:05:34 +01:00
Michal Simek
f6f5451d46 scsi: ceva: Enable PHY and reset support
Add phy and reset support for ceva sata IP. Phy and reset are optional
properties that's why detect if description is available. If not just
continue with operation.
This code was tested on Xilinx Kria SOM kv260-revA with sata connector
populated.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/eb3adf649be866aab19fc70ecc0fc8921545b1ac.1644226590.git.michal.simek@xilinx.com
2022-02-15 13:04:28 +01:00
Michal Simek
462f76bc00 phy: zynqmp: Add support for sata and DP phy initialization
DP is untested but just c&p from Linux driver. Sata is tested on kv260-revA
board which has SATA connector populated.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/d231610160e76a2ad1b4a163e0e8db0ddc4733e2.1644226590.git.michal.simek@xilinx.com
2022-02-15 13:04:28 +01:00
Michal Simek
fac46bc446 arm64: zynqmp: Add command for disabling loading other overlays
Add command "zynqmp pmufw node close" to disable permission to load
additional pmufw config overlays. This command will make sure that any
other sw will ask for changing permission.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/cfa5cc7909eb8deb23eb0f11c26954cbaddeb861.1642163135.git.michal.simek@xilinx.com
2022-02-15 13:04:03 +01:00
Michal Simek
c750c6dbb2 xilinx: firmware: Introduce zynqmp_pmufw_node() for loading PMU fragments
Introduce zynqmp_pmufw_node() for loading PMU configuration fragment for
enabling IPs. Firmware driver has small overlay where NODE id is added and
config fragment is sent to PMUFW. There is a need to build PMUFW with
fragment support.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/636e8150bd4e2b1f988d59795772c685ceeec083.1642163135.git.michal.simek@xilinx.com
2022-02-15 13:03:54 +01:00
Michal Simek
e0283cbdfd power: zynqmp: Add power domain driver for ZynqMP
Driver should be enabled by CONFIG_POWER_DOMAIN=y and
CONFIG_ZYNQMP_POWER_DOMAIN=y. Power domain driver doesn't have own DT node
but it uses zynqmp firmware DT node that's why there is a need to bind
driver when firmware node is found.

Driver itself is simple. It is sending pmufw config object overlay for
enabling access to device which is done in ...domain_request().
In ...domain_on() capabilities are passed and node is requested.
This should be bare minimum of required to get power domain driver working.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Link: https://lore.kernel.org/r/f4b9433b91c0b18c375b061c7a4e29d428f70547.1644226055.git.michal.simek@xilinx.com
2022-02-15 13:01:42 +01:00
Luca Ceresoli
2f9dd4bfc7 tools/zynqmp_pm_cfg_obj_convert.py: fix build with Vivado 2021.x
This tool fails with a pm_cfg_obj.c file generated by Vitis 2021.2. This is
because that version of Vitis added the PM_CONFIG_OBJECT_TYPE_BASE that was
not previously generated, thus the script does not implement it.

Reported-by: Neal Frager <nealf@xilinx.com>
[report: https://lists.buildroot.org/pipermail/buildroot/2022-February/636639.html]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Link: https://lore.kernel.org/r/20220212125121.3398547-1-luca@lucaceresoli.net
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2022-02-15 12:41:00 +01:00
Tom Rini
ab8903a24d configs: Resync with savedefconfig
Rsync all defconfig files using moveconfig.py

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-02-14 22:21:29 +00:00
Tom Rini
8a4ef8786f Prepare v2022.04-rc2
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-02-14 17:03:08 -05:00
Tom Rini
139e049732 Merge branch '2022-02-14-assorted-fixes'
- Fix for pstore already being in the DT, "setlocalversion" script
  bugfix and pdu001 platform bugfix
2022-02-14 14:18:45 -05:00
Felix Brack
9f0deae6d5 arm: pdu001: Fix dt to work with the current am33xx dtsi files
The changes introduced with commit 6337d53fdf ("arm: dts: sync am33xx
with Linux 5.9-rc7") prevent the PDU001 from operating correctly.
This patch fixes the configuration of the pin multiplexer and uart3.

Signed-off-by: Felix Brack <fb@ltec.ch>
2022-02-14 13:04:39 -05:00
Nikita Maslov
609177140b scripts: setlocalversion: remove quotes around localversion from config
After replacing of include/config/auto.conf sourcing with
extraction of CONFIG_LOCALVERSION, resulting version string
contains quotes around localversion part which are always
present in auto.conf (even if localversion is empty).

This patch fixes this script to remove quotes.

Signed-off-by: Nikita Maslov <wkernelteam@gmail.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-14 13:04:39 -05:00
Detlev Casanova
ac52cba63f pstore: Support already existing reserved-memory node
The pstore command tries to create a reserved-memory node but fails if
it is already present with:

    Add 'reserved-memory' node failed: FDT_ERR_EXISTS

This patch creates the node only if it does not exist and adapts the reg
values sizes depending on already present #address-cells and #size-cells
values.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
2022-02-14 13:03:49 -05:00
Tom Rini
162c22bfbc Pull request for efi-2022-04-rc2-4
Documentation:
 
 * mkeficapsule man-page
 
 UEFI changes:
 
 * add support for signing images to mkeficapsule
 * add support for user define capsule GUID
 * adjust unit tests for capsules
 * fix UEFI image signature validation in case of multiple signatures
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Merge tag 'efi-2022-04-rc2-4' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-04-rc2-4

Documentation:

* mkeficapsule man-page

UEFI changes:

* add support for signing images to mkeficapsule
* add support for user define capsule GUID
* adjust unit tests for capsules
* fix UEFI image signature validation in case of multiple signatures
2022-02-11 15:11:52 -05:00
Ilias Apalodimas
72b509b701 test/py: efi_secboot: adjust secure boot tests to code changes
The previous patch is changing U-Boot's behavior wrt certificate based
binary authentication.  Specifically an image who's digest of a
certificate is found in dbx is now rejected.  Fix the test accordingly
and add another one testing signatures in reverse order

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
Ilias Apalodimas
54cebe8a3a efi_loader: fix dual signed image certification
The EFI spec allows for images to carry multiple signatures. Currently
we don't adhere to the verification process for such images.

The spec says:
"Multiple signatures are allowed to exist in the binary's certificate
table (as per PE/COFF Section "Attribute Certificate Table"). Only one
hash or signature is required to be present in db in order to pass
validation, so long as neither the SHA-256 hash of the binary nor any
present signature is reflected in dbx."

With our current implementation signing the image with two certificates
and inserting both of them in db and one of them dbx doesn't always reject
the image.  The rejection depends on the order that the image was signed
and the order the certificates are read (and checked) in db.

While at it move the sha256 hash verification outside the signature
checking loop, since it only needs to run once per image and get simplify
the logic for authenticating an unsigned imahe using sha256 hashes.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
e012550cd7 test/py: efi_capsule: check the results in case of CAPSULE_AUTHENTICATE
Before the capsule authentication is supported, this test script works
correctly, but with the feature enabled, most tests will fail due to
unsigned capsules.
So check the results depending on CAPSULE_AUTHENTICATE or not.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
e9b74979b4 test/py: efi_capsule: add a test for "--guid" option
This test scenario tests a new feature of mkeficapsule, "--guid" option,
which allows us to specify FMP driver's guid explicitly at the command
line.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
460c94a2c7 test/py: efi_capsule: align with the syntax change of mkeficapsule
Since the syntax of mkeficapsule was changed in the previous commit,
we need to modify command line arguments in a pytest script.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
d9612f4426 tools: mkeficapsule: allow for specifying GUID explicitly
The existing options, "--fit" and "--raw," are only used to put a proper
GUID in a capsule header, where GUID identifies a particular FMP (Firmware
Management Protocol) driver which then would handle the firmware binary in
a capsule. In fact, mkeficapsule does the exact same job in creating
a capsule file whatever the firmware binary type is.

To prepare for the future extension, the command syntax will be a bit
modified to allow users to specify arbitrary GUID for their own FMP driver.
OLD:
   [--fit <image> | --raw <image>] <capsule file>
NEW:
   [--fit | --raw | --guid <guid-string>] <image> <capsule file>

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
bad58cb308 test/py: efi_capsule: add image authentication test
Add a couple of test cases against capsule image authentication
for capsule-on-disk, where only a signed capsule file with the verified
signature will be applied to the system.

Due to the difficulty of embedding a public key (esl file) in U-Boot
binary during pytest setup time, all the keys/certificates are pre-created.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
a62eb06f7c doc: update UEFI document for usage of mkeficapsule
Now we can use mkeficapsule command instead of EDK-II's script
to create a signed capsule file. So update the instruction for
capsule authentication.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
118a0ecd6d tools: mkeficapsule: add man page
Add a man page for mkeficapsule command.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
16abff246b tools: mkeficapsule: add firmware image signing
With this enhancement, mkeficapsule will be able to sign a capsule
file when it is created. A signature added will be used later
in the verification at FMP's SetImage() call.

To do that, we need specify additional command parameters:
  -monotonic-cout <count> : monotonic count
  -private-key <private key file> : private key file
  -certificate <certificate file> : certificate file
Only when all of those parameters are given, a signature will be added
to a capsule file.

Users are expected to maintain and increment the monotonic count at
every time of the update for each firmware image.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
9af16cc8f1 tools: build mkeficapsule with tools-only_defconfig
Add CONFIG_TOOLS_MKEFICAPSULE. Then we want to always build mkeficapsule
if tools-only_defconfig is used.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 20:07:55 +01:00
AKASHI Takahiro
9ebfc6ba5b CI: enforce packages upgrade for Msys2 on Windows
We need to install libgnutls-devel package to build the host tool,
mkeficapsule, and as of now, there seems to be a depencency conflict
in the current msys2 installer;

   :: installing libp11-kit (0.24.1-1) breaks dependency \
	'libp11-kit=0.23.22' required by p11-kit

To resolve this conflict, however, the initial "pacman -Syyuu" in
'tools_only_windows' job is not enough. Another "pacman -Su" will
enforce all the out-of-date packages being upgraded.
(Probably the first "-Syyuu" can be changed to "-Syu".)

See the installation steps in
  https://www.msys2.org/

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-02-11 20:07:55 +01:00
Tom Rini
dd1c255cbc Merge branch '2022-02-11-assorted-updates-and-fixes'
A partial list:
- fw_env updates, a new testcase for mkimage -o ..., nop-phy reset-gpios
  support, DFU updates, kaslr-seed support in extlinux.conf, modern
  "partitions" support in mtd device tree
2022-02-11 12:02:31 -05:00
Heinrich Schuchardt
73cde90c8b test: test field truncation in snprint()
The output size for snprint() should not only be respected for whole fields
but also with fields. Add more tests.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-11 11:29:23 -05:00
Adam Ford
3970c82a60 phy: nop-phy: Enable reset-gpios support
Some usb-nop-xceiv devices use a gpio take them out
of reset.  Add a reset function to put them into that
state.  This is similar to how Linux handles the
usb-nop-xceiv driver.

Signed-off-by: Adam Ford <aford173@gmail.com>
2022-02-11 11:29:23 -05:00
Rafał Miłecki
07c79dd5fd fw_env: simplify logic & code paths in the fw_env_open()
Environment variables can be stored in two formats:
1. Single entry with header containing CRC32
2. Two entries with extra flags field in each entry header

For that reason fw_env_open() has two main code paths and there are
pointers for CRC32/flags/data.

Previous implementation was a bit hard to follow:
1. It was checking for used format twice (in reversed order each time)
2. It was setting "environment" global struct fields to some temporary
   values that required extra comments explaining it

This change simplifies that code:
1. It introduces two clear code paths
2. It sets "environment" global struct fields values only once it really
   knows them

To be fair there are *two* crc32() calls now and an extra pointer
variable but that should be cheap enough and worth it.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2022-02-11 11:29:23 -05:00
Rafał Miłecki
f178f7c955 fw_env: make flash_io() take buffer as an argument
It's usually easier to understand code & follow it if all arguments are
passed explicitly. Many coding styles also discourage using global
variables.

Behaviour of flash_io() was a bit unintuitive as it was writing to a
buffer referenced in a global struct. That required developers to
remember how it works and sometimes required hacking "environment"
global struct variable to read data into a proper buffer.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2022-02-11 11:29:23 -05:00
Simon Glass
aafb31fc95 acpi: Move acpi_write_tables() to a generic header
This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-11 11:29:23 -05:00
Masami Hiramatsu
e9b0fd839b cmd/dfu: Enable 'dfu list' command without DFU_OVER_USB
Since dfu is not only used for USB, and some platform only
supports DFU_OVER_TFTP or EFI capsule update, dfu_alt_info
is defined on such platforms too.

For such platform, 'dfu list' command is useful to check
how the current dfu_alt_info setting is parsed.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-02-11 11:29:23 -05:00
Masami Hiramatsu
c25a838c9c doc: usage: DFU: Fix dfu_alt_info document
Fix some typo and wrong information about dfu_alt_info.
- Add the parameter format, decimal only or hexadecimal.
- Use same parameter name for the same kind of parameters.
  (e.g. dev -> dev_id)

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-02-11 11:29:23 -05:00
Masami Hiramatsu
53b406369e DFU: Check the number of arguments and argument string strictly
When parsing the dfu_alt_info, check the number of arguments
and argument string strictly. If there is any garbage data
(which is not able to be parsed correctly) in dfu_alt_info,
that means something wrong and user may make a typo or mis-
understanding about the syntax. Since the dfu_alt_info is
used for updating the firmware, this mistake may lead to
brick the hardware.
Thus it should be checked strictly for making sure there
is no mistake.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-02-11 11:29:23 -05:00
Masami Hiramatsu
8db74c153b DFU: Accept redundant spaces and tabs in dfu_alt_info
If dfu_alt_info has repeated spaces or tab (for indentation or
readability), the dfu fails to parse it. For example, if
dfu_alt_info="mtd nor1=image raw  100000 200000" (double spaces
after "raw"), the image entity start address is '0' and the size
'0x100000'. This is because the repeated space is not skipped.

Use space and tab as a separater and apply skip_spaces() to
skip redundant spaces and tabs.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-02-11 11:29:23 -05:00
Masami Hiramatsu
d8ae90a8d4 DFU: Do not copy the entity name over the buffer size
Use strlcpy() instead of strcpy() to prevent copying the
entity name over the name buffer size.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-02-11 11:29:23 -05:00
Jan Kiszka
32a711dbdb mkimage: Improve documentation of algo-name parameter
Addresses the feedback provided on 5902a397d0 ("mkimage: Allow to
specify the signature algorithm on the command line") which raced with
the merge.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 11:29:10 -05:00
qthedev
42db373806 Replace echo -n's used in environment processing with touch
echo -n does not give the intended effect when invoked in macOS through
/bin/sh, which is the shell make uses by default, see
"https://stackoverflow.com/questions/11675070/makefile-echo-n-not-working"
for a detailed explanation. In this case, it resulted in "-n" being
written to env.txt and env.in even though they should be empty, which
caused compilation to fail with "Your board uses a text-file
environment, so must not define CONFIG_EXTRA_ENV_SETTINGS".

This patch prevents the error by replacing echo -n's with touch, as they
are used to create empty files in these cases.
2022-02-11 11:28:47 -05:00
Heinrich Schuchardt
63de067a1b cmd: wrong printf() code in do_test_stackprot_fail()
strlen() returns size_t. So we should use %zu to print it.
This avoids incorrect output on 32bit systems.

Fixes: 2fc62f2991 ("stackprot: Make our test a bit more complex")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-11 10:52:37 -05:00
Jan Kiszka
7ace56ae03 test/py: Add test case for mkimage -o argument
Stress the '-o algo_name' argument of mkimage by expanding the vboot
test.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Update scripts/pylint.base]
2022-02-11 10:52:24 -05:00
Pali Rohár
eebcdb34d0 malloc_simple: Remove usage of unsupported %zx format string
Replace %zx by %lx and cast size_t to ulong.

U-Boot currently prints garbage debug output:
size=x, ptr=18, limit=18: 4002a000

With this change it prints correct debug data:
size=18, ptr=18, limit=2000: 4002a000

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 09:00:47 -05:00
Matthias Schiffer
36fee2f762 common: fdt_support: add support for "partitions" subnode to fdt_fixup_mtdparts()
Listing MTD partitions directly in the flash mode has been deprecated
for a while for kernel Device Trees. Look for a node "partitions" in the
found flash nodes and use it instead of the flash node itself for the
partition list when it exists, so Device Trees following the current
best practices can be fixed up.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-02-11 09:00:47 -05:00
Peter Cai
80d4c02b93 button: adc: set state to pressed when the voltage is closest to nominal
In the Linux implementation of adc-keys
(drivers/input/keyboard/adc-keys.c), `press-threshold-microvolt` is not
really interpreted as a threshold, but rather as the "nominal voltage"
of the button. When the voltage read from the ADC is closest to a
button's `press-threshold-microvolt`, the button is considered pressed.

This patch reconciles the behavior of button-adc with Linux's adc-keys
such that device trees can be synchronized with minimal modifications.

Signed-off-by: Peter Cai <peter@typeblog.net>
2022-02-11 09:00:47 -05:00
Zhang Ning
0290146943 cmd: pxe_utils: sysboot: add kaslr-seed generation support
this will add kaslrseed keyword to sysboot lable,
when it set, it will request to genarate random number
from hwrng as kaslr-seed.

with this patch exlinux.conf label looks like

label l0
        menu testing
        linux /boot/vmlinuz-5.15.16-arm
        initrd /boot/initramfs-5.15.16-arm.img
        fdtdir /boot/dtbs/5.15.16-arm/
        kaslrseed
        append root=UUID=92ae1e50-eeeb-4c5b-8939-7e1cd6cfb059 ro

Tested on Khadas VIM with kernel 5.16.0-rc5-arm64, Debian 11.

Signed-off-by: Zhang Ning <zhangn1985@qq.com>
2022-02-11 09:00:47 -05:00
Tom Rini
86752b2814 Merge https://source.denx.de/u-boot/custodians/u-boot-usb 2022-02-11 07:22:30 -05:00
Marek Vasut
1f54025d70 usb: gadget: ci: Avoid null pointer dereference
The ci_req->hw_buf can be NULL, test whether it is and if so,
avoid accessing it. Else, the system may crash.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Peter Chen <peter.chen@nxp.com>
Cc: Li Jun <jun.li@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
2022-02-11 01:30:43 +01:00
Thomas Watson
96991e652f console: usb: kbd: Limit poll frequency to improve performance
Using the XHCI driver, the function `usb_kbd_poll_for_event` takes
30-40ms to run. The exact time is dependent on the polling interval the
keyboard requests in its descriptor, and likely cannot be significantly
reduced without major rework to the XHCI driver.

The U-Boot EFI console service sets a timer to poll the keyboard every 5
microseconds, and this timer is checked every time a block is read off
disk. The net effect is that, on my system, loading a ~40MiB kernel and
initrd takes about 62 seconds with a slower keyboard and 53 seconds
with a faster one, with the vast majority of the time spent polling the
keyboard.

To solve this problem, this patch adds a 20ms delay between consecutive
calls to `usb_kbd_poll_for_event`. This is sufficient to reduce the
total loading time to under half a second for both keyboards, and does
not impact the perceived keystroke latency.

Signed-off-by: Thomas Watson <twatson52@icloud.com>
2022-02-11 00:03:48 +01:00