platform/kernel/u-boot.git
3 years agoMerge branch '2021-03-12-assorted-improvements' into next
Tom Rini [Mon, 15 Mar 2021 12:41:14 +0000 (08:41 -0400)]
Merge branch '2021-03-12-assorted-improvements' into next

- More log enhancements
- A few warning fixes in some cases
- Secure Channel Protocol 03 (SCP03) support for TEEs

3 years agotest: py: add initial coverage for scp03 cmd
Igor Opaniuk [Sun, 14 Feb 2021 15:27:28 +0000 (16:27 +0100)]
test: py: add initial coverage for scp03 cmd

Add initial test coverage for SCP03 command.

Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: imply SCP03 and CMD_SCP03
Igor Opaniuk [Sun, 14 Feb 2021 15:27:27 +0000 (16:27 +0100)]
sandbox: imply SCP03 and CMD_SCP03

Enable by default SCP_03/CMD_SCP03 for sandbox target.

Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agodoc: describe the scp03 command
Jorge Ramirez-Ortiz [Sun, 14 Feb 2021 15:27:26 +0000 (16:27 +0100)]
doc: describe the scp03 command

The Secure Channel Protocol 03 command sends control requests
(enable/provision) to the TEE implementing the protocol between the
processor and the secure element.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agodrivers: tee: sandbox: SCP03 control emulator
Jorge Ramirez-Ortiz [Sun, 14 Feb 2021 15:27:25 +0000 (16:27 +0100)]
drivers: tee: sandbox: SCP03 control emulator

Adds support for a working SCP03 emulation. Input parameters are
validated however the commands (enable, provision) executed by the TEE
are assumed to always succeed.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agocmd: SCP03: enable and provision command
Jorge Ramirez-Ortiz [Sun, 14 Feb 2021 15:27:24 +0000 (16:27 +0100)]
cmd: SCP03: enable and provision command

Enable and provision the SCP03 keys on a TEE controlled secured elemt
from the U-Boot shell.

Executing this command will generate and program new SCP03 encryption
keys on the secure element NVM.

Depending on the TEE implementation, the keys would then be stored in
some persistent storage or better derived from some platform secret
(so they can't be lost).

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Igor Opaniuk <igor.opaniuk@foundries.io>
3 years agocommon: SCP03 control (enable and provision of keys)
Jorge Ramirez-Ortiz [Sun, 14 Feb 2021 15:27:23 +0000 (16:27 +0100)]
common: SCP03 control (enable and provision of keys)

This Trusted Application allows enabling SCP03 as well as provisioning
the keys on TEE controlled secure element (ie, NXP SE050).

All the information flowing on buses (ie I2C) between the processor
and the secure element must be encrypted. Secure elements are
pre-provisioned with a set of keys known to the user so that the
secure channel protocol (encryption) can be enforced on the first
boot. This situation is however unsafe since the keys are publically
available.

For example, in the case of the NXP SE050, these keys would be
available in the OP-TEE source tree [2] and of course in the
documentation corresponding to the part.

To address that, users are required to rotate/provision those keys
(ie, generate new keys and write them in the secure element's
persistent memory).

For information on SCP03, check the Global Platform HomePage and
google for that term [1]
[1] globalplatform.org
[2] https://github.com/OP-TEE/optee_os/
    check:
    core/drivers/crypto/se050/adaptors/utils/scp_config.c

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agodoc: sandbox: Update instructions on quitting
Simon Glass [Sun, 7 Feb 2021 21:27:07 +0000 (14:27 -0700)]
doc: sandbox: Update instructions on quitting

The 'reset' command now resets sandbox but does not quit it. Fix the
instructions.

Fixes: 329dccc0675 ("sandbox: implement reset")
Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: acpi: Fix warnings on 32-bit build
Simon Glass [Sun, 7 Feb 2021 21:27:05 +0000 (14:27 -0700)]
test: acpi: Fix warnings on 32-bit build

Some format strings use the wrong type. Fix them.

Example warnings:

In file included from test/dm/acpi.c:22:
test/dm/acpi.c: In function ‘dm_test_acpi_cmd_list’:
test/dm/acpi.c:362:21: warning: format ‘%lx’ expects argument of type
  ‘long unsigned int’, but argument 4 has type ‘unsigned int’ [-Wformat=]
  ut_assert_nextline("RSDP %08lx %06lx (v02 U-BOOT)", addr,
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       sizeof(struct acpi_rsdp));
       ~~~~~~~~~~~~~~~~~~~~~~~~
include/test/ut.h:282:33: note: in definition of macro ‘ut_assert_nextline’
  if (ut_check_console_line(uts, fmt, ##args)) {   \
                                 ^~~

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotpm: Correct warning on 32-bit build
Simon Glass [Sun, 7 Feb 2021 21:27:04 +0000 (14:27 -0700)]
tpm: Correct warning on 32-bit build

Fix the warning:

drivers/tpm/tpm2_tis_sandbox.c: In function ‘sandbox_tpm2_xfer’:
drivers/tpm/tpm2_tis_sandbox.c:288:48: warning: format ‘%ld’ expects
argument of type ‘long int’, but argument 2 has type ‘size_t’
{aka ‘unsigned int’} [-Wformat=]
   printf("TPM2: Unmatching length, received: %ld, expected: %d\n",
                                              ~~^
                                              %d
          send_size, length);
          ~~~~~~~~~

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 years agotpm: Don't select LOG
Simon Glass [Thu, 21 Jan 2021 03:10:56 +0000 (20:10 -0700)]
tpm: Don't select LOG

We don't need to enable logging to run this command since the output will
still appear. Drop the 'select'.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agolog: Add return-checking macros for 0 being success
Simon Glass [Thu, 21 Jan 2021 03:10:54 +0000 (20:10 -0700)]
log: Add return-checking macros for 0 being success

The existing log_ret() and log_msg_ret() macros consider an error to be
less than zero. But some function may return a positive number to indicate
a different kind of failure. Add macros to check for that also.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agolog: Handle line continuation
Simon Glass [Thu, 21 Jan 2021 03:10:53 +0000 (20:10 -0700)]
log: Handle line continuation

When multiple log() calls are used which don't end in newline, the
log prefix is prepended multiple times in the same line. This makes the
output look strange.

Fix this by detecting when the previous log record did not end in newline.
In that case, setting a flag.

Drop the unused BUFFSIZE in the test while we are here.

As an example implementation, update log_console to check the flag and
produce the expected output.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agolog: Set up a flag byte for log records
Simon Glass [Thu, 21 Jan 2021 03:10:52 +0000 (20:10 -0700)]
log: Set up a flag byte for log records

At present only a single flag (force_debug) is used in log records. Before
adding more, convert this into a bitfield, so more can be added without
using more space.

To avoid expanding the log_record struct itself (which some drivers may
wish to store in memory) reduce the line-number field to 16 bits. This
provides for up to 64K lines which should be enough for anyone.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agoMerge branch '2021-03-12-test-improvements' into next
Tom Rini [Fri, 12 Mar 2021 20:57:20 +0000 (15:57 -0500)]
Merge branch '2021-03-12-test-improvements' into next

- Assorted improvements to the pytest framework

3 years agodoc: Explain briefly how to write new tests
Simon Glass [Mon, 8 Mar 2021 00:35:17 +0000 (17:35 -0700)]
doc: Explain briefly how to write new tests

Add a second on writing tests, covering when to use Python and C, where
to put the tests, etc. Add a link to the existing Python test
documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: sandbox: Move sandbox test docs into doc/develop
Simon Glass [Mon, 8 Mar 2021 00:35:16 +0000 (17:35 -0700)]
test: sandbox: Move sandbox test docs into doc/develop

At present some of the documentation about running sandbox tests is in the
sandbox docs. It makes more sense to put it in with the other testing
docs, with a link there from sandbox. Update the documentation
accordingly.

Also add a paragraph explaining why sandbox exists and the test philosophy
that it uses.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agospl: test: Add a test for spl_load_simple_fit()
Simon Glass [Mon, 8 Mar 2021 00:35:15 +0000 (17:35 -0700)]
spl: test: Add a test for spl_load_simple_fit()

As an example of an SPL test, add a new test for loading a FIT within
SPL. This runs on sandbox_spl. For this to work, the text base is adjusted
so that there is plenty of space available.

While we are here, document struct spl_load_info properly, since this is
currently ambiguous.

This test only verifies the logic path. It does not actually check that
the image is loaded correctly. It is not possible for sandbox's SPL to
actually run u-boot.img since it currently includes u-boot.bin rather than
u-boot. Further work could expand the test in that direction.

The need for this was noted at:

   http://patchwork.ozlabs.org/project/uboot/patch/20201216000944.2832585-3-mr.nuke.me@gmail.com/

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agospl: Convert spl_fit to work with sandbox
Simon Glass [Mon, 8 Mar 2021 00:35:14 +0000 (17:35 -0700)]
spl: Convert spl_fit to work with sandbox

At present this casts addresses to pointers so cannot work with sandbox.
Update the code to use map_sysmem() instead.

As part of this change, the existing load_ptr is renamed to src_ptr since
it is not a pointer to load_addr. It is confusing to use a similar name
for something that is not actually related. For the alignment code,
ALIGN() is used instead of open-coded alignment. Add a comment to the line
that casts away a const.

Use a (new) load_ptr variable to access memory at address load_addr.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: Update os_find_u_boot() to find the .img file
Simon Glass [Mon, 8 Mar 2021 00:35:13 +0000 (17:35 -0700)]
sandbox: Update os_find_u_boot() to find the .img file

At present this function can only locate the u-boot ELF file. For SPL it
is handy to be able to locate u-boot.img since this is what would normally
be loaded by SPL.

Add another argument to allow this to be selected.

While we are here, update the function to load SPL when running in TPL,
since that is the next stage.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Allow SPL to run any available test
Simon Glass [Mon, 8 Mar 2021 00:35:12 +0000 (17:35 -0700)]
test: Allow SPL to run any available test

At present SPL only runs driver model tests. Update it to run all
available tests, i.e. in any test suite.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Rename all linker lists to have a ut_ prefix
Simon Glass [Mon, 8 Mar 2021 00:35:11 +0000 (17:35 -0700)]
test: Rename all linker lists to have a ut_ prefix

At present each test suite has its own portion of the linker_list section
of the image, but other lists are interspersed. This makes it hard to
enumerate all the available tests without knowing the suites that each one
is in.

Place all tests together in a single contiguous list by giving them
common prefix not used elsewhere in U-Boot. This makes it possible to find
the start and end of all tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Add a macros for finding tests in linker_lists
Simon Glass [Mon, 8 Mar 2021 00:35:10 +0000 (17:35 -0700)]
test: Add a macros for finding tests in linker_lists

At present we use the linker list directly. This is not very friendly, so
add a helpful macro instead. This will also allow us to change the naming
later without updating this code.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: log: Rename log main test file to log_ut.c
Simon Glass [Mon, 8 Mar 2021 00:35:09 +0000 (17:35 -0700)]
test: log: Rename log main test file to log_ut.c

The current name is the same as the main test runner file. Rename it to
avoid confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 years agotest: Move restoring of driver model state to ut_run_list()
Simon Glass [Mon, 8 Mar 2021 00:35:08 +0000 (17:35 -0700)]
test: Move restoring of driver model state to ut_run_list()

Add this functionality to ut_run_list() so it can be removed from
dm_test_run().

At this point all tests are run through ut_run_list().

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move the devicetree check into ut_run_list()
Simon Glass [Mon, 8 Mar 2021 00:35:07 +0000 (17:35 -0700)]
test: Move the devicetree check into ut_run_list()

Add a check to ut_run_list() as to whether a list has driver model tests.
Move the logic for the test devicetree into that function, in an effort
to eventually remove all logic from dm_test_run().

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Use return values in dm_test_run()
Simon Glass [Mon, 8 Mar 2021 00:35:06 +0000 (17:35 -0700)]
test: Use return values in dm_test_run()

Update this function to use the return value of ut_run_list() to check for
success/failure, so that they are in sync. Also return a command success
code so that the caller gets what it expects.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Run driver-model tests using ut_run_list()
Simon Glass [Mon, 8 Mar 2021 00:35:05 +0000 (17:35 -0700)]
test: Run driver-model tests using ut_run_list()

Use this function instead of implementing it separately for driver model.

Make ut_run_tests() private since it is only used in test-main.c

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Use a local variable for test state
Simon Glass [Mon, 8 Mar 2021 00:35:04 +0000 (17:35 -0700)]
test: Use a local variable for test state

At present we use a global test state for all driver-model tests. Make use
of a local struct like we do with the other tests.

To make this work, add functions to get and set this state. When a test
starts, the state is set (so it can be used in the test). When a test
finishes, the state is unset, so it cannot be used by mistake.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Add ut_run_test_live_flat() to run tests twice
Simon Glass [Mon, 8 Mar 2021 00:35:03 +0000 (17:35 -0700)]
test: Add ut_run_test_live_flat() to run tests twice

Driver model tests are generally run twice, once with livetree enable and
again with it disabled. Add a function to handle this and call it from the
driver model test runner.

Make ut_run_test() private since it is not used outside test-main.c now.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Drop dm_do_test()
Simon Glass [Mon, 8 Mar 2021 00:35:02 +0000 (17:35 -0700)]
test: Drop dm_do_test()

In an effort to make use of a common test runner, use ut_run_test()
directly to run driver model tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Use ut_run_test() to run driver model tests
Simon Glass [Mon, 8 Mar 2021 00:35:01 +0000 (17:35 -0700)]
test: Use ut_run_test() to run driver model tests

Instead of having a separate function for running driver model tests, use
the common one. Make the pre/post-run functions private since we don't
need these outside of test-main.c

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move test running into a separate function
Simon Glass [Mon, 8 Mar 2021 00:35:00 +0000 (17:35 -0700)]
test: Move test running into a separate function

Add a function to handle the preparation for running a test and the
post-test clean-up.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move dm_test_destroy() into test-main.c
Simon Glass [Mon, 8 Mar 2021 00:34:59 +0000 (17:34 -0700)]
test: Move dm_test_destroy() into test-main.c

Move this function into the common test runner and rename it to
dm_test_post_run() so that its purpose is clear.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move dm_test_init() into test-main.c
Simon Glass [Mon, 8 Mar 2021 00:34:58 +0000 (17:34 -0700)]
test: Move dm_test_init() into test-main.c

Move this function into test-main so that all the init is in one place.
Rename it so that its purpose is clearer.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Drop struct dm_test_state
Simon Glass [Mon, 8 Mar 2021 00:34:57 +0000 (17:34 -0700)]
test: Drop struct dm_test_state

Driver model is a core part of U-Boot. We don't really need to have a
separate test structure for the driver model tests and it makes it harder
to write a test if you have to think about which type of test it is.

Subsume the fields from struct dm_test_state into struct unit_test_state
and delete the former.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Handle driver model reinit in test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:56 +0000 (17:34 -0700)]
test: Handle driver model reinit in test_pre_run()

For driver model tests we want to reinit the data structures so that
everything is in a known state before the test runs. This avoids one test
changing something that breaks a subsequent tests.

Move the call for this into test_pre_run().

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move delay skipping to test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:55 +0000 (17:34 -0700)]
test: Move delay skipping to test_pre_run()

This allows delays to be skipped in sandbox tests. Move it to the
common pre-init function.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move console silencing to test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:54 +0000 (17:34 -0700)]
test: Move console silencing to test_pre_run()

We already have a function for silencing the console during tests. Use
this from test_pre_run() and drop this code from the driver model tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Drop mallinfo() work-around
Simon Glass [Mon, 8 Mar 2021 00:34:53 +0000 (17:34 -0700)]
test: Drop mallinfo() work-around

This is not needed now. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move dm_scan_plat() to test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:52 +0000 (17:34 -0700)]
test: Move dm_scan_plat() to test_pre_run()

Move this step over to the pre-run function.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move do_autoprobe() to test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:51 +0000 (17:34 -0700)]
test: Move do_autoprobe() to test_pre_run()

Move this step over to the pre-run function.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Move dm_extended_scan() to test_pre_run()
Simon Glass [Mon, 8 Mar 2021 00:34:50 +0000 (17:34 -0700)]
test: Move dm_extended_scan() to test_pre_run()

Move this step over to the pre-run function.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Call test_pre/post_run() from driver model tests
Simon Glass [Mon, 8 Mar 2021 00:34:49 +0000 (17:34 -0700)]
test: Call test_pre/post_run() from driver model tests

Ultimately we want to get rid of the special driver model test init and
use test_pre_run() and test_post_run() for all tests. As a first step,
use those function to handle console recording.

For now we need a special case for setting uts->start, but that wil go
away once all init is in one place.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Create pre/post-run functions
Simon Glass [Mon, 8 Mar 2021 00:34:48 +0000 (17:34 -0700)]
test: Create pre/post-run functions

Split out the test preparation into a separation function before
expanding it. Add a post-run function as well, currently empty.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Add an overall test runner
Simon Glass [Mon, 8 Mar 2021 00:34:47 +0000 (17:34 -0700)]
test: Add an overall test runner

Add a new test runner that will eventually be able to run any test. For
now, have it run the 'command' unit tests, so that the functionality in
cmd_ut_category() moves into it.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Rename test-main.c to test-dm.c
Simon Glass [Mon, 8 Mar 2021 00:34:46 +0000 (17:34 -0700)]
test: Rename test-main.c to test-dm.c

This is the main test function for driver model but not for other tests.
Rename the file and the function so this is clear.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Mark all driver model tests with a flag
Simon Glass [Mon, 8 Mar 2021 00:34:45 +0000 (17:34 -0700)]
test: Mark all driver model tests with a flag

Add a flag for driver model tests, so we can do special processing for
them.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Correct setexpr test prefix
Simon Glass [Mon, 8 Mar 2021 00:34:44 +0000 (17:34 -0700)]
test: Correct setexpr test prefix

This prefix should be for setexpr, not mem. This means that trying to
select just these tests to run does not work. Fix it.

For some reason this provokes an assertion failure due to memory not
being freed. Move the env_set() in setexpr_test_str() to before the
malloc() heap size size is recorded and disable the rest in
setexpr_test_str_oper().

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agodoc: Document how sandbox_spl_tests are run
Simon Glass [Mon, 8 Mar 2021 00:34:43 +0000 (17:34 -0700)]
doc: Document how sandbox_spl_tests are run

Add a few notes about the sandbox_spl tests, since they are special.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
3 years agodoc: Explain how to run tests without pytest
Simon Glass [Mon, 8 Mar 2021 00:34:42 +0000 (17:34 -0700)]
doc: Explain how to run tests without pytest

Add details about how to run a sandbox test directly, without using
pytest. This is more convenient for rapid development, since it is faster
and allows easier use of a debugger. Also mention sandbox_flattree as an
example of the different sandbox builds available.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotest: Re-enable test_ofplatdata
Simon Glass [Mon, 8 Mar 2021 00:34:41 +0000 (17:34 -0700)]
test: Re-enable test_ofplatdata

This was inadvertently disabled after a recent change. Re-enable it.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: Drop the 'starting...' message
Simon Glass [Mon, 8 Mar 2021 00:34:40 +0000 (17:34 -0700)]
sandbox: Drop the 'starting...' message

This message is annoying since it is only useful for testing. Drop it and
update the test to cope.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agodoc: Document make tcheck
Simon Glass [Mon, 8 Mar 2021 00:34:39 +0000 (17:34 -0700)]
doc: Document make tcheck

Add a comment about this option in the documentation. Also mention the
script that runs these combinations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 years agodoc: Tidy up testing section
Simon Glass [Mon, 8 Mar 2021 00:34:38 +0000 (17:34 -0700)]
doc: Tidy up testing section

Tweak this so the output looks a little better.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 years agodm: core: Fix allocation of empty of-platdata
Simon Glass [Mon, 8 Mar 2021 00:34:37 +0000 (17:34 -0700)]
dm: core: Fix allocation of empty of-platdata

With of-platdata we always have a dtv struct that holds the platform data
provided by the driver_info record. However, this struct can be empty if
there are no actual devicetree properties provided.

The upshot of empty platform data is that it will end up as a zero-size
member in the BSS section, which is fine. But if the driver specifies
plat_auto then it expects the correct amount of space to be allocated.

At present this does not happen, since device_bind() assumes that the
platform-data size will always be >0. As a result we end up not
allocating the space and just use the BSS region, overwriting whatever
other contents are present.

Fix this by removing the condition that platform data be non-empty, always
allocating space if requested.

This fixes a strange bug that has been lurking since of-platdata was
implemented. It has likely never been noticed since devices normally have
at least some devicetree properties, BSS is seldom used on SPL, the dtv
structs are normally at the end of bss and the overwriting only happens
if a driver changes its platform data.

It was discovered using sandbox_spl, which exercises more features than
a normal board might, and the critical global_data variable 'gd' happened
to be at the end of BSS.

Fixes: 9fa28190091 ("dm: core: Expand platdata for of-platdata devices")
Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agoMerge tag 'next-2021-03-04' of https://gitlab.denx.de/u-boot/custodians/u-boot-video...
Tom Rini [Thu, 4 Mar 2021 19:36:40 +0000 (14:36 -0500)]
Merge tag 'next-2021-03-04' of https://gitlab.denx.de/u-boot/custodians/u-boot-video into next

 - convert sunxi_display to DM_VIDEO

3 years agoMerge branch '2021-03-03-gpio-improvements' into next
Tom Rini [Thu, 4 Mar 2021 18:12:51 +0000 (13:12 -0500)]
Merge branch '2021-03-03-gpio-improvements' into next

- GPIO uclass improvements

3 years agogpio: Add a way to read 3-way strapping pins
Simon Glass [Fri, 5 Feb 2021 04:22:09 +0000 (21:22 -0700)]
gpio: Add a way to read 3-way strapping pins

Using the internal vs. external pull resistors it is possible to get
27 different combinations from 3 strapping pins. Add an implementation
of this.

This involves updating the sandbox GPIO driver to model external and
(weaker) internal pull resistors. The get_value() method now takes account
of what is driving a pin:

   sandbox: GPIOD_EXT_DRIVEN - in which case GPIO_EXT_HIGH provides the
          value
   outside source - in which case GPIO_EXT_PULL_UP/DOWN indicates the
          external state and we work the final state using those flags and
          the internal GPIOD_PULL_UP/DOWN flags

Of course the outside source does not really exist in sandbox. We are just
modelling it for test purpose.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agogpio: Define the log category in the uclass
Simon Glass [Fri, 5 Feb 2021 04:22:08 +0000 (21:22 -0700)]
gpio: Define the log category in the uclass

This uses log_debug(), etc. but does not define the category. Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agogpio: sandbox: Track whether a GPIO is driven
Simon Glass [Fri, 5 Feb 2021 04:22:07 +0000 (21:22 -0700)]
gpio: sandbox: Track whether a GPIO is driven

Add a new flag to keep track of whether sandbox is driving the pin, or
whether it is expecting an input signal. If it is driving, then the value
of the pin is the value being driven (0 or 1). If not driving, then we
consider the value 0, since we don't currently handle things like pull-ups
yet.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: x86: Drop the deprecated methods in intel_gpio
Simon Glass [Fri, 5 Feb 2021 04:22:06 +0000 (21:22 -0700)]
gpio: x86: Drop the deprecated methods in intel_gpio

We don't need to implement direction_input() and direction_output()
anymore. Drop them and use update_flags() instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agogpio: Use an 'ops' variable everywhere
Simon Glass [Fri, 5 Feb 2021 04:22:05 +0000 (21:22 -0700)]
gpio: Use an 'ops' variable everywhere

Update this driver to use the common method of putting the driver
operations in an 'ops' variable install of calling gpio_get_ops()
repeatedly. Make it const since operations do not change.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: Replace direction_input() and direction_output()
Simon Glass [Fri, 5 Feb 2021 04:22:04 +0000 (21:22 -0700)]
gpio: Replace direction_input() and direction_output()

The new update_flags() method is more flexible since it allows the
driver to see the full flags all at once. Use that in preference to these
two functions. Add comments to that effect.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agodm: gpio: Add a way to update flags
Simon Glass [Fri, 5 Feb 2021 04:22:03 +0000 (21:22 -0700)]
dm: gpio: Add a way to update flags

It is convenient to be able to adjust some of the flags for a GPIO while
leaving others alone. Add a function for this.

Update dm_gpio_set_dir_flags() to make use of this.

Also update dm_gpio_set_value() to use this also, since this allows the
open-drain / open-source features to be implemented directly in the
driver, rather than using the uclass workaround.

Update the sandbox tests accordingly. This involves a lot of changes to
dm_test_gpio_opendrain_opensource() since we no-longer have the direciion
being reported differently depending on the open drain/open source flags.

Also update the STM32 drivers to let the uclass handle the active low/high
logic.

Drop the GPIOD_FLAGS_OUTPUT() macro which is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: sandbox: Make sandbox_gpio_set_flags() set all flags
Simon Glass [Fri, 5 Feb 2021 04:22:02 +0000 (21:22 -0700)]
gpio: sandbox: Make sandbox_gpio_set_flags() set all flags

Allow this function to see all flags, including the internal sandbox ones.
This allows the tests to fully control the behaviour of the driver.

To make this work, move the setting of GPIOD_EXT_HIGH -to where the flags
are updated via driver model, rather than the sandbox 'back door'.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: sandbox: Fully separate pin value from output value
Simon Glass [Fri, 5 Feb 2021 04:22:01 +0000 (21:22 -0700)]
gpio: sandbox: Fully separate pin value from output value

At present we have the concept of a pin's external value. This is what
is used when getting the value of a pin. But we still set the
GPIOD_IS_OUT_ACTIVE flag when changing the value. This is not actually
correct, since if the pin changes from output to input, the external
value need not change. Adjust the logic for this difference.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: sandbox: Use a separate flag for the value
Simon Glass [Fri, 5 Feb 2021 04:22:00 +0000 (21:22 -0700)]
gpio: sandbox: Use a separate flag for the value

At present with the sandbox GPIO driver it is not possible to change the
value of GPIOD_IS_OUT_ACTIVE unless the GPIO is an output. This makes it
hard to test changing the flags since we need to be aware of the internal
workings of the driver.

The feature is designed to aid testing.

Split this feature out into a separate sandbox-specific flag, so that the
flags can change unimpeded. This will make it easier to allow updating the
flags in a future patch.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agogpio: sandbox: Rename GPIO dir_flags to flags
Simon Glass [Fri, 5 Feb 2021 04:21:59 +0000 (21:21 -0700)]
gpio: sandbox: Rename GPIO dir_flags to flags

Adjust the terminology in this driver to reflect that fact that all flags
are handled, not just direction flags.

Create a new access function to get the full GPIO state, not just the
direction flags. Drop the static invalid_dir_flags since we can rely on a
segfault if something is wrong.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: Rename dm_gpio_get_dir_flags() to dm_gpio_get_flags()
Simon Glass [Fri, 5 Feb 2021 04:21:57 +0000 (21:21 -0700)]
gpio: Rename dm_gpio_get_dir_flags() to dm_gpio_get_flags()

This function can be used to get any flags, not just direction flags.
Rename it to avoid confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
3 years agodm: gpio: Rename get_dir_flags() method to get_flags()
Simon Glass [Fri, 5 Feb 2021 04:21:56 +0000 (21:21 -0700)]
dm: gpio: Rename get_dir_flags() method to get_flags()

It is more useful to be able to read all the flags, not just the direction
ones. In fact this is what the STM32 driver does. Update the method name
to reflect this.

Tweak the docs a little and use 'flagsp' as the return argument, as is
common in driver model, to indicate it returns a value.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
3 years agodm: gpio: Rename set_dir_flags() method to update_flags()
Simon Glass [Fri, 5 Feb 2021 04:21:55 +0000 (21:21 -0700)]
dm: gpio: Rename set_dir_flags() method to update_flags()

The current method is a misnomer since it is also used (e.g. by stm32) to
update pull settings and open source/open drain.

Rename it and expand the documentation to cover a few more details.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agogpio: Disable functions not used with of-platdata
Simon Glass [Fri, 5 Feb 2021 04:21:54 +0000 (21:21 -0700)]
gpio: Disable functions not used with of-platdata

These functions use devicetree and cannot work with of-platdata, which has
no runtime devicetree.

If they are used, the current linker error is confusing, since it talks
about missing functions in the bowels of driver model.

Avoid compiling these functions at all with of-platdata, so that a
straightforward link error points to the problem.

Series-changes; 3
- Fix 'wprl' typo

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agoMerge branch '2021-03-03-assorted-improvements' into next
Tom Rini [Wed, 3 Mar 2021 19:05:43 +0000 (14:05 -0500)]
Merge branch '2021-03-03-assorted-improvements' into next

- Clean up reset_cpu()
- Assorted arm cp15 cleanups
- Assorted cleanups throughout the tree from Simon
- TPM1 / TPM2 cleanups

3 years agovideo: sunxi_display: Convert to DM_VIDEO
Jagan Teki [Mon, 22 Feb 2021 00:12:34 +0000 (00:12 +0000)]
video: sunxi_display: Convert to DM_VIDEO

DM_VIDEO migration deadline is already expired, but around
80 Allwinner boards are still using video in a legacy way:

===================== WARNING ======================
This board does not use CONFIG_DM_VIDEO Please update
the board to use CONFIG_DM_VIDEO before the v2019.07 release.
Failure to update by the deadline may result in board removal.
See doc/driver-model/migration.rst for more info.
====================================================

Convert the legacy video driver over to the DM_VIDEO framework. This is
a minimal conversion: it doesn't use the DT for finding its resources,
nor does it use DM clocks or DM devices for the outputs (LCD, HDMI, CVBS).

Tested in Bananapi M1+ Plus 1920x1200 HDMI out. (Jagan)

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[Andre: rebase and smaller fixes]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 years agotpm: Allow disabling platform hierarchy with TPM2
Simon Glass [Sat, 6 Feb 2021 21:23:42 +0000 (14:23 -0700)]
tpm: Allow disabling platform hierarchy with TPM2

With TPM2 we don't actually lock the TPM once verified boot is finished.
Instead we disable the platform hierarchy which serves the same purpose.
Add an implementation of this so we can safely boot into the kernel.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add TPM2 support for write_lock
Simon Glass [Sat, 6 Feb 2021 21:23:41 +0000 (14:23 -0700)]
tpm: Add TPM2 support for write_lock

Implement this API function for TPM2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add TPM2 support for read/write values
Simon Glass [Sat, 6 Feb 2021 21:23:40 +0000 (14:23 -0700)]
tpm: Add TPM2 support for read/write values

Implement this API function for TPM2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add an implementation of define_space
Simon Glass [Sat, 6 Feb 2021 21:23:39 +0000 (14:23 -0700)]
tpm: Add an implementation of define_space

Add support for this so that the TPM can be set up for use with
Chromium OS verified boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Reduce duplication in a few functions
Simon Glass [Sat, 6 Feb 2021 21:23:38 +0000 (14:23 -0700)]
tpm: Reduce duplication in a few functions

Update tpm2_clear() and tpm2_pcr_extend() so that the command size
is not repeated twice. Add a small comment to the latter.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add a basic API implementation for TPMv2
Simon Glass [Sat, 6 Feb 2021 21:23:37 +0000 (14:23 -0700)]
tpm: Add a basic API implementation for TPMv2

Add support for TPMv2 versions of API functions. So far this is not
complete as the standard is quite large, but it implements everything
currently available for TPMv2 in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Switch TPMv1 over to use the new API
Simon Glass [Sat, 6 Feb 2021 21:23:36 +0000 (14:23 -0700)]
tpm: Switch TPMv1 over to use the new API

Take over the plain 'tpm_...' functions for use by the new TPM API. Rename
all the TPMv1 functions so they are called from the API.

Update the TPMv1 functions so that they are called from the API. Change
existing users to use the tpm1_ prefix so they don't need to go through
the API, which might introduce uncertainty.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add an API that can support v1.2 and v2
Simon Glass [Sat, 6 Feb 2021 21:23:35 +0000 (14:23 -0700)]
tpm: Add an API that can support v1.2 and v2

There are two different TPM standards. U-Boot supports both but each has
its own set of functions. We really need a single TPM API that can call
one or the other. This is not always possible as there are some
differences between the two standards, but it is mostly possible.

Add an API to handle this. So far it is not plumbed into the build and
only supports TPMv1.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Add debugging of request in tpm_sendrecv_command()
Simon Glass [Sat, 6 Feb 2021 21:23:34 +0000 (14:23 -0700)]
tpm: Add debugging of request in tpm_sendrecv_command()

The response is shown but not the request. Update the code to show both
if debugging is enabled.

Use a 'uint' type for size so it matches the register-word size on both
32- and 64-bit machines.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agotpm: Use logging in the uclass
Simon Glass [Sat, 6 Feb 2021 21:23:33 +0000 (14:23 -0700)]
tpm: Use logging in the uclass

Update this to use log_debug() instead of the old debug().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agotpm: Don't include cr50 in TPL/SPL
Simon Glass [Sat, 6 Feb 2021 21:23:32 +0000 (14:23 -0700)]
tpm: Don't include cr50 in TPL/SPL

At present the security chip is not used in these U-Boot phases. Update
the Makefile to exclude it.

Fix a few logging statements while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
3 years agobootm: Fix duplicate debugging in bootm_process_cmdline()
Simon Glass [Sat, 6 Feb 2021 16:57:35 +0000 (09:57 -0700)]
bootm: Fix duplicate debugging in bootm_process_cmdline()

These two returns use the same string so are not distinguishable with
LOG_ERROR_RETURN. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: Write out bloblist when exiting
Simon Glass [Sat, 6 Feb 2021 16:57:34 +0000 (09:57 -0700)]
sandbox: Write out bloblist when exiting

Sandbox provides a way to write out its emulated memory on exit. This
makes it possible to pass a bloblist from one phase (e.g. SPL) to the
next.

However the bloblist is not closed off, so the checksum is generally
invalid. Fix this by finishing up the bloblist before writing the memory
file.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: Avoid using malloc() for system state
Simon Glass [Sat, 6 Feb 2021 16:57:33 +0000 (09:57 -0700)]
sandbox: Avoid using malloc() for system state

This state is not accessible to the running U-Boot but at present it is
allocated in the emulated SDRAM. This doesn't seem very useful. Adjust
it to allocate from the OS instead.

The RAM buffer is currently not freed, but should be, so add that into
state_uninit(). Update the comment for os_free() to indicate that NULL is
a valid parameter value.

Note that the strdup() in spl_board_load_image() is changed as well, since
strdup() allocates memory in the RAM buffer.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agosandbox: Add os_realloc()
Simon Glass [Sat, 6 Feb 2021 16:57:32 +0000 (09:57 -0700)]
sandbox: Add os_realloc()

We provide os_malloc() and os_free() but not os_realloc(). Add this,
following the usual semantics. Also update os_malloc() to behave correctly
when passed a zero size.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
3 years agos5p4418_nanopi2: Drop dead code
Simon Glass [Sat, 6 Feb 2021 16:57:31 +0000 (09:57 -0700)]
s5p4418_nanopi2: Drop dead code

This code is still using the old command typedef. It was not noticed since
this file is not currently built. It is using a non-existent option in the
Makefile.

Drop this file since it is not needed for correct operation.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agodoc: Add a note about producing 'md.b' output using hexdump
Simon Glass [Sat, 6 Feb 2021 16:57:30 +0000 (09:57 -0700)]
doc: Add a note about producing 'md.b' output using hexdump

Comparing a hex dump on the U-Boot command line with the contents of a
file on the host system is fairly easy and convenient to do manually if
it is small. But the format used hexdump by default differs from that
shown by U-Boot. Add a note about how to make them the same.

(For large dumps, writing the data to the network with tftpput, or to a
USB stick with ext4save is easiest.)

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agodoc: describe the md command
Simon Glass [Sat, 6 Feb 2021 16:57:29 +0000 (09:57 -0700)]
doc: describe the md command

Provide a man-page for the md command.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agobinman: Indicate how to make binman verbose
Simon Glass [Sat, 6 Feb 2021 16:57:28 +0000 (09:57 -0700)]
binman: Indicate how to make binman verbose

Add notes about how to make binman produce verbose logging when building.

Add a comment on how to do this.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agospl: Drop duplicate 'Jumping to U-Boot' message
Simon Glass [Sat, 6 Feb 2021 16:57:27 +0000 (09:57 -0700)]
spl: Drop duplicate 'Jumping to U-Boot' message

This is printed twice but we only need one message, since there is very
little processing in between them. Drop the second one, since all branches
of the switch() already have output. Update the U-Boot message to include
the phase being jumped to.

Signed-off-by: Simon Glass <sjg@chromium.org>
3 years agoarm: remove set_dacr/get_dacr functions
Patrick Delaunay [Fri, 5 Feb 2021 12:53:39 +0000 (13:53 +0100)]
arm: remove set_dacr/get_dacr functions

Remove the unused function set_dacr/get_dacr

Serie-cc: Ard Biesheuvel <ardb@kernel.org>
Serie-cc: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agoarm: cp15: remove weak function arm_init_domains
Patrick Delaunay [Fri, 5 Feb 2021 12:53:38 +0000 (13:53 +0100)]
arm: cp15: remove weak function arm_init_domains

Remove the unused weak function arm_init_domains used to change the
DACR value.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agoarm: omap2: remove arm_init_domains
Patrick Delaunay [Fri, 5 Feb 2021 12:53:37 +0000 (13:53 +0100)]
arm: omap2: remove arm_init_domains

Remove the arm_init_domains and the DACR update, as it is now done
in ARMv7 CP15 level.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agoarm: cp15: update DACR value to activate access control
Patrick Delaunay [Fri, 5 Feb 2021 12:53:36 +0000 (13:53 +0100)]
arm: cp15: update DACR value to activate access control

Update the initial value of Domain Access Control Register (DACR)
and set by default the access permission to client (DACR_Dn_CLIENT = 1U)
for each of the 16 domains and no more to all-supervisor
(DACR_Dn_MANAGER = 3U).

This patch allows to activate the domain checking in MMU against the
permission bits in the translation tables and avoids prefetching issue
on ARMv7 [1].

Today it was already done for OMAP2 architecture
./arch/arm/mach-omap2/omap-cache.c::arm_init_domains
introduced by commit de63ac278cba ("ARM: mmu: Set domain permissions
to client access") which fixes lot of speculative prefetch aborts seen
on OMAP5 secure devices.

[1] https://developer.arm.com/documentation/ddi0406/b/System-Level-Architecture/Virtual-Memory-System-Architecture--VMSA-/Memory-access-control/The-Execute-Never--XN--attribute-and-instruction-prefetching

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reported-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
3 years agoarm: cosmetic: align TTB_SECT define value
Patrick Delaunay [Fri, 5 Feb 2021 12:53:35 +0000 (13:53 +0100)]
arm: cosmetic: align TTB_SECT define value

Align TTB_SECT define value with previous value.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>