arm: socfpga: is1: Adding handoff for SDRAM ctrlcfg.extratime1
Adding new handoff for SDRAM ctrcfg.extratime1 which is
required for stable LPDDR2 operation. Since the board is
using DDR3, the handoff is set to default value 0.
Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
arm: socfpga: socrates: Adding handoff for SDRAM ctrlcfg.extratime1
Adding new handoff for SDRAM ctrcfg.extratime1 which is
required for stable LPDDR2 operation. Since the board is
using DDR3, the handoff is set to default value 0.
Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
arm: socfpga: mcvevk: Adding handoff for SDRAM ctrlcfg.extratime1
Adding new handoff for SDRAM ctrcfg.extratime1 which is
required for stable LPDDR2 operation. Since the board is
using DDR3, the handoff is set to default value 0.
Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
arm: socfpga: Adding handoff for SDRAM ctrlcfg.extratime1
Adding new handoff for SDRAM ctrcfg.extratime1 which is
required for stable LPDDR2 operation. Since the board is
using DDR3, the handoff is set to default value 0.
Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
ddr: altera: Configuring SDRAM extra cycles timing parameters
To enable configuration of sdr.ctrlcfg.extratime1 register which enable
extra clocks for read to write command timing. This is critical to
ensure successful LPDDR2 interface
Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Tom Rini [Thu, 20 Oct 2016 15:26:40 +0000 (11:26 -0400)]
travis-ci: Add test.py for various qemu platforms
- Add a PPA for a more recent qemu (required for PowerPC to work)
- Add tests to run test.py for various QEMU platforms. This relies on
swarren's uboot-test-hooks repository to provide the abstractions.
Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@konsulko.com>
Tom Rini [Thu, 20 Oct 2016 15:24:52 +0000 (11:24 -0400)]
travis-ci: Drop 'TEST_CMD'
We don't need to use TEST_CMD in order to run tests. We need a BUILDMAN
and TOOLCHAIN variable to avoid having to duplicate logic or write some
wrapper function. But this makes the tests harder as we add more
complex examples.
Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Heiko Schocher <hs@denx.de>
Tom Rini [Thu, 20 Oct 2016 15:08:26 +0000 (11:08 -0400)]
travis-ci: Update toolchain and buildman usage
- Drop the 'cache' line, travis-ci says to not cache apt packages (and
does not).
- Get the Ubuntu provided toolchain for ARM and PowerPC.
- Add more toolchain options that buildman can fetch.
Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Heiko Schocher <hs@denx.de>
Tom Rini [Thu, 20 Oct 2016 15:05:57 +0000 (11:05 -0400)]
travis-ci: Do not make buildman warnings fatal
We currently will always see a number of warnings due to device tree
issues. These (and other warnings) should not make the build be marked
as failure so catch exit status 129 specifically and return 0 in that
case.
Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Heiko Schocher <hs@denx.de>
Masahiro Yamada [Wed, 19 Oct 2016 05:39:54 +0000 (14:39 +0900)]
tools: moveconfig: support wildcards in --defconfigs file
Supporting shell-style wildcards for the --defconfigs option will be
useful to run the moveconfig tool against a specific platform. For
example, "uniphier*" in the file passed by --defconfigs option will
be expanded to defconfig files that start with "uniphier". This is
easier than listing out all defconfig files you are interested in.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Masahiro Yamada [Mon, 17 Oct 2016 11:43:01 +0000 (20:43 +0900)]
Fix codying style broken by recent libfdt sync
Commit b02e4044ff8e ("libfdt: Bring in upstream stringlist
functions") broke codying style in some places especially
by inserting an extra whitespace before fdt_stringlist_count().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
Nicolae Rosia [Thu, 13 Oct 2016 10:47:53 +0000 (13:47 +0300)]
power: twl6030: fix code refactoring
Commit a85362fb3e1fc7833723accddbbae431091d06b8 refactored the code
but the register read ended up in the wrong if branch.
Currently, the else branch checks a variable which is always 0.
Signed-off-by: Nicolae Rosia <nicolae_rosia@mentor.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Stefan Brüns [Sun, 9 Oct 2016 18:15:27 +0000 (20:15 +0200)]
ext4: Fix handling of direntlen in unlink_filename
The direntlen checks were quite bogus, i.e. the loop termination used
"len + offset == blocksize" (exact match only), and checked for a
direntlen less than 0. The latter can never happen as the len is
unsigned, this has been reported by Coverity, CID 153384.
Use the same code as in search_dir for directory traversal. This code
has the correct checks for direntlen >= sizeof(struct dirent), and
offset < blocksize.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reported-by: Coverity (CID: 153383, 153384) Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Simon Glass [Tue, 18 Oct 2016 02:12:51 +0000 (20:12 -0600)]
Convert CONFIG_VIDEO_SW_CURSOR to Kconfig
This converts the following to Kconfig:
CONFIG_VIDEO_SW_CURSOR
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Re-convert, find all the cases where this is off] Signed-off-by: Tom Rini <trini@konsulko.com>
Simon Glass [Tue, 18 Oct 2016 02:12:35 +0000 (20:12 -0600)]
Convert SILENT_CONSOLE options to Kconfig
Move these option to Kconfig and tidy up existing uses.
The Power PC boards don't have a suitable common element: the common header
files don't appear to line up with the Kconfig files as far as I can tell.
This results in a lot of defconfig changes.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>
[trini: Re-migrate, update common/console.c logic] Signed-off-by: Tom Rini <trini@konsulko.com>
Simon Glass [Tue, 18 Oct 2016 02:12:34 +0000 (20:12 -0600)]
Remove some merge markers
These two files have patch merge markers in them, within comments or
strings. Remove then, so that a search for merge markers does not show up
matches in these files.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
Stephen Warren [Mon, 17 Oct 2016 23:25:52 +0000 (17:25 -0600)]
test/py: ensure a log section exists for skipped tests
In pytest 3, runtestprotocol() may not call pytest_runtest_setup() if
the test is skipped. That call is required to create a section for the
test in the log file. If this is skipped, the call to log.end_section()
at the tail of pytest_runtest_protocol() will throw an exception. This
patch ensures that a log section always exists, both to avoid the
exception and to ensure that a consistently structured log file is
always created.
Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reported-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Stephen Warren <swarren@nvidia.com> Tested-by: Tom Rini <trini@konsulko.com>
Maxime Ripard [Mon, 17 Oct 2016 20:50:18 +0000 (22:50 +0200)]
libfdt: Sync overlay with upstream
Now that the overlay code has been merge upstream, update our copy to
what's been merged, since a significant number of issues have been fixed
during the merge process.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Simon Glass <sjg@chromium.org>
Tom Rini [Wed, 19 Oct 2016 11:48:16 +0000 (07:48 -0400)]
Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot
Patch queue for efi - 2016-10-19
Highlights this time around:
- Add run time service (power control) support for PSCI (fixed in v3)
- Add efi gop pointer exposure
- SMBIOS support for EFI (on ARM)
- efi pool memory unmap support (needed for 4.8)
- initial x86 efi payload support (fixed up in v2)
- various bug fixes
Signed-off-by: Tom Rini <trini@konsulko.com>
Conflicts:
include/tables_csum.h
Alexander Graf [Tue, 18 Oct 2016 13:49:40 +0000 (15:49 +0200)]
efi_loader: Revert device_handle to disk after net boot
When you boot an efi payload from network, then exit that payload
and load another payload from disk afterwords, the disk payload will
currently see the network device as its boot path.
This breaks grub2 for example which tries to find its modules based
on the path it was loaded from.
This patch fixes that issue by always reverting to disk paths if we're
not in the network boot. That way the data structures after a network
boot look the same as before.
Simon Glass [Sun, 25 Sep 2016 21:27:35 +0000 (15:27 -0600)]
x86: efi: Add EFI loader support for x86
Add the required pieces to support the EFI loader on x86.
Since U-Boot only builds for 32-bit on x86, only a 32-bit EFI application
is supported. If a 64-bit kernel must be booted, U-Boot supports this
directly using FIT (see doc/uImage.FIT/kernel.its). U-Boot can act as a
payload for both 32-bit and 64-bit EFI.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Simon Glass [Sun, 25 Sep 2016 21:27:32 +0000 (15:27 -0600)]
efi: Fix missing EFIAPI specifiers
These are missing in some functions. Add them to keep things consistent.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 18 Aug 2016 23:23:31 +0000 (01:23 +0200)]
smbios: Provide serial number
If the system has a valid "serial#" environment variable set (which boards that
can find it out programatically set automatically), use that as input for the
serial number and UUID fields in the SMBIOS tables.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Thu, 18 Aug 2016 23:23:30 +0000 (01:23 +0200)]
efi_loader: Fix efi_install_configuration_table
So far we were only installing the FDT table and didn't have space
to store any other. Hence nobody realized that our efi table allocation
was broken in that it didn't set the indicator for the number of tables
plus one.
This patch fixes it, allowing code to allocate new efi tables.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Thu, 18 Aug 2016 23:23:28 +0000 (01:23 +0200)]
smbios: Generate type 4 on non-x86 systems
The type 4 table generation code is very x86 centric today. Refactor things
out into the device model cpu class to allow the tables to get generated for
other architectures as well.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Alexander Graf [Thu, 18 Aug 2016 23:23:27 +0000 (01:23 +0200)]
cpu: Add get_vendor callback
The CPU udevice already has a few callbacks to retreive information
about the currently running CPUs. This patch adds a new get_vendor()
call that returns the vendor of the main CPUs.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Alexander Graf [Thu, 18 Aug 2016 23:23:26 +0000 (01:23 +0200)]
cpu: Add DMTF id and family fields
For SMBIOS tables we need to know the CPU family as well as CPU IDs. This
patches allocates some space for them in the cpu device and populates it
on x86.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Alexander Graf [Thu, 18 Aug 2016 23:23:25 +0000 (01:23 +0200)]
smbios: Allow compilation on 64bit systems
The SMBIOS generation code passes pointers as u32. That causes the compiler
to warn on casts to pointers. This patch moves all address pointers to
uintptr_t instead.
Technically u32 would be enough for the current SMBIOS2 style tables, but
we may want to extend the code to SMBIOS3 in the future which is 64bit
address capable.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
We want to be able to add configuration table entries from our own code as
well as from EFI payload code. Export the boot service function internally
too, so that we can reuse it.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Tue, 16 Aug 2016 19:08:49 +0000 (21:08 +0200)]
efi_loader: Add generic PSCI RTS
Now that we have generic PSCI reset and shutdown support in place, we can
advertise those as EFI Run Time Services, allowing efi applications and
OSs to reset and shut down systems.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Tue, 16 Aug 2016 19:08:48 +0000 (21:08 +0200)]
arm: Provide common PSCI based reset handler
Most armv8 systems have PSCI support enabled in EL3, either through
ARM Trusted Firmware or other firmware.
On these systems, we do not need to implement system reset manually,
but can instead rely on higher level firmware to deal with it.
The exclude list seems excessive right now, but NXP is working on
providing an in-tree PSCI implementation, so that all NXP systems
can eventually use PSCI as well.
Signed-off-by: Alexander Graf <agraf@suse.de>
[agraf: fix meson] Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Tue, 16 Aug 2016 19:08:47 +0000 (21:08 +0200)]
arm: Add PSCI shutdown function
Using PSCI you can not only reset the system, you can also shut it down!
This patch exposes a function to do exactly that to whatever code wants
to make use of it.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Tue, 16 Aug 2016 19:08:46 +0000 (21:08 +0200)]
arm: Disable HVC PSCI calls by default
All systems that are running on armv8 are running bare metal with firmware
that implements PSCI running in EL3. That means we don't really need to expose
the hypercall variants of them.
This patch leaves the code in, but makes the code explicit enough to have the
compiler optimize it out. With this we don't need to worry about hvc vs smc
calling convention when calling psci helper functions.
Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Alexander Graf [Tue, 16 Aug 2016 19:08:45 +0000 (21:08 +0200)]
efi_loader: Allow boards to implement get_time and reset_system
EFI allows an OS to leverage firmware drivers while the OS is running. In the
generic code we so far had to stub those implementations out, because we would
need board specific knowledge about MMIO setups for it.
However, boards can easily implement those themselves. This patch provides the
framework so that a board can implement its own versions of get_time and
reset_system which would actually do something useful.
While at it we also introduce a simple way for code to reserve MMIO pointers
as runtime available.
Stefan Brüns [Sat, 1 Oct 2016 21:32:29 +0000 (23:32 +0200)]
efi_loader: Do not leak memory when unlinking a mapping
As soon as a mapping is unlinked from the list, there are no further
references to it, so it should be freed. If it not unlinked,
update the start address and length.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Stefan Brüns [Sat, 1 Oct 2016 21:32:27 +0000 (23:32 +0200)]
efi_loader: Readd freed pages to memory pool
Currently each allocation creates a new mapping. Readding the mapping
as free memory (EFI_CONVENTIONAL_MEMORY) potentially allows to hand out
an existing mapping, thus limiting the number of mapping descriptors in
the memory map.
Mitigates a problem with current (4.8rc7) linux kernels when doing an
efi_get_memory map, resulting in an infinite loop. Space for the memory
map is reserved with allocate_pool (implicitly creating a new mapping) and
filled. If there is insufficient slack space (8 entries) in the map, the
space is freed and a new round is started, with space for one more entry.
As each round increases requirement and allocation by exactly one, there
is never enough slack space. (At least 32 entries are allocated, so as
long as there are less than 24 entries, there is enough slack).
Earlier kernels reserved no slack, and did less allocations, so this
problem was not visible.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Stefan Brüns [Sun, 9 Oct 2016 20:17:26 +0000 (22:17 +0200)]
efi_loader: Track size of pool allocations to allow freeing
We need a functional free_pool implementation, as otherwise each
allocate_pool causes growth of the memory descriptor table.
Different to free_pages, free_pool does not provide the size for the
to be freed allocation, thus we have to track the size ourselves.
As the only EFI requirement for pool allocation is an alignment of
8 bytes, we can keep allocating a range using the page allocator,
reserve the first 8 bytes for our bookkeeping and hand out the
remainder to the caller. This saves us from having to use any
independent data structures for tracking.
To simplify the conversion between pool allocations and the corresponding
page allocation, we create an auxiliary struct efi_pool_allocation.
Given the allocation size free_pool size can handoff freeing the page
range, which was indirectly allocated by a call to allocate_pool,
to free_pages.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Stefan Brüns [Sun, 9 Oct 2016 20:17:18 +0000 (22:17 +0200)]
efi_loader: Move efi_allocate_pool implementation to efi_memory.c
We currently handle efi_allocate_pool() in our boot time service
file. In the following patch, pool allocation will receive additional
internal semantics that we should preserve inside efi_memory.c instead.
As foundation for those changes, split the function into an externally
facing efi_allocate_pool_ext() for use by payloads and an internal helper
efi_allocate_pool() in efi_memory.c that handles the actual allocation.
While at it, change the magic 0xfff / 12 constants to the more obvious
EFI_PAGE_MASK/SHIFT defines.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
efi_status_t efi_allocate_pages(int type, int memory_type,
unsigned long pages,
uint64_t *memory);
The problem: efi_allocate_pages does this internally:
*memory = addr;
This fix in efi_allocate_pool uses a transitional uintptr_t cast to
ensure the correct outcome, irrespective of the system's native word
size.
This was observed when bootefi'ing the EFI instance of FreeBSD's first
stage bootstrap (boot1.efi) on a 32-bit ARM platform (Qemu VExpress +
Cortex-a9).
Signed-off-by: Robin Randhawa <robin.randhawa@arm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Stefan Brüns [Sun, 9 Oct 2016 20:17:07 +0000 (22:17 +0200)]
efi_loader: Fix memory map size check to avoid out-of-bounds access
The current efi_get_memory_map() function overwrites the map_size
property before reading its value. That way the sanity check whether our
memory map fits into the given array always succeeds, potentially
overwriting arbitrary payload memory.
This patch moves the property update write after its sanity check, so
that the check actually verifies the correct value.
So far this has not triggered any known bugs, but we're better off safe
than sorry.
If the buffer is to small, the returned memory_map_size indicates the
required size to the caller.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Masahiro Yamada [Mon, 17 Oct 2016 13:18:01 +0000 (22:18 +0900)]
clk: uniphier: rework UniPhier clk driver
The initial design of the UniPhier clk driver for U-Boot was not
very nice. Here is a re-work to sync it with Linux's clk and reset
drivers, maximizing the code reuse from Linux's clk data.
Masahiro Yamada [Sun, 9 Oct 2016 14:52:57 +0000 (23:52 +0900)]
pinctrl: uniphier: fix unused-const-variable warnings for GCC 6.x
Marek reports warnings in UniPhier pinctrl drivers when compiled by
GCC 6.x, like:
drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c:58:18: warning:
'usb3_muxvals' defined but not used [-Wunused-const-variable=]
static const int usb3_muxvals[] = {0, 0};
^~~~~~~~~~~~
My intention here is to compile minimum set of pin data for SPL to
save memory footprint, but GCC these days is clever enough to notice
unused data arrays.
We can fix it by sprinkling around __maybe_unused on those arrays,
but I did not do that because they are counterparts of the pinctrl
drivers in Linux. All the pin data were just copy-pasted from Linux
and are kept in sync for maintainability.
I chose a bit tricky way to fix the issue; calculate ARRAY_SIZE of
*_pins and *_muxvals and set their sum to an unused struct member.
This trick will satisfy GCC because the data arrays are used anyway,
but such data arrays will be dropped from the final binary because
the pointers to them are not used.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reported-by: Marek Vasut <marex@denx.de>
watchdog: Fix Watchdog Reset while in U-Boot Prompt
Hardware: CM-FX6 Module from Compulab
This patch fixes unwanted watchdog resets while the user enters
a command at the U-Boot prompt.
As found on the CM-FX6 board from Compulab, when having enabled the
watchdog, a missing WATCHDOG_RESET call in common/console.c causes
this and alike boards to reset when the watchdog's timeout has
elapsed while waiting at the U-Boot prompt.
Despite the user could press several keys within the watchdog
timeout limit, the while loop in cli_readline.c, line 261, does only
call WATCHDOG_RESET if first == 1, which gets set to 0 in the 1st
loop iteration. This leads to a watchdog timeout no matter if the
user presses keys or not.
Although, this affects other boards as well as it touches
common/console.c, the macro WATCHDOG_RESET expands to {} if watchdog
support isn't configured. Hence, there's no harm caused and no need to
surround it by #ifdef in this case.
* Symptom:
U-Boot resets after watchdog times out when in commandline prompt
and watchdog is enabled.
* Reasoning:
When U-Boot shows the commandline prompt, the following function
call stack is executed while waiting for a keypress:
common/console.c:
(with CONFIG_CONSOLE_MUX is set)
- in console_tstc line 181:
If dev->tstc(dev) returns 0, the global tstcdev variable doesn't get
set. This is the case if no character is in the serial buffer.
- in fgetc(int file), line 297:
Program flow keeps looping because tstcdev does not get set.
Therefore WATCHDOG_RESET is not called, as mx_serial_tstc from
drivers/serial/serial_mxc.c does not call it.
* Solution:
Add WATCHDOG_RESET into the loop of console_tstc.
Note: Macro expands to {} if not configured, so no #ifdef is needed.
* Comment:
Signed-off-by: Christian Storm <christian.storm@tngtech.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Andreas J. Reichel <Andreas.Reichel@tngtech.com> Acked-by: Simon Glass <sjg@chromium.org>
projects / u-boot / log