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Drop the driver-specific field_get() and field_prep() macros, in favor
of the globally available variants from <linux/bitfield.h>.
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Prepare for the advent of globally available common field_get() and
field_prep() macros by undefining the symbols before defining local
variants. This prevents redefinition warnings from the C preprocessor
when introducing the common macros later.
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
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Restyle all Kconfigs for the rest of "drivers":
Menu entries : no space left
Menu attributes: 1 TAB
Help text : 1 TAB + 2 spaces
Replace '---help---' by 'help'
Signed-off-by: Johan Jonker <[email protected]>
[trini: Add missing indentation on a few more multi-paragraph help texts]
Signed-off-by: Tom Rini <[email protected]>
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dev_read_addr does not return a void* but fdt_addr_t.
Replace invalid usage of dev_read_addr by dev_read_addr_ptr.
v2:
- Replace dev_read_addr by dev_read_addr_ptr
- Change error to EINVAL
Signed-off-by: Francois Berder <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Reviewed-by: Hal Feng <[email protected]>
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Use dev_remap_addr() to replace devfdt_remap_addr which supports both live
device tree and flat DT backends, avoiding direct dependency on
devfdt_* helpers.
No functional changes.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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devfdt_get_addr() returns FDT_ADDR_T_NONE(-1UL) when fail, using
"!priv->regs" to check return value is wrong.
Replace devfdt_read_addr() with dev_read_addr_ptr() when retrieving the
register base address.
dev_read_addr_ptr() supports both live device tree and flat DT backends,
avoiding direct dependency on devfdt_* helpers.
Also use "void __iomem *" to replace "phys_addr_t" to avoid type
casting.
No functional changes.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Replace devfdt_read_addr_size_index() with dev_read_addr_size_index() when
retrieving the register base address.
dev_read_addr_size_index() supports both live device tree and flat DT
backends, avoiding direct dependency on devfdt_* helpers.
No functional changes.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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The OcteonTX watchdog driver currently matches arm,sbsa-gwdt.
On systems with multiple watchdog devices this can be ambiguous since
arm,sbsa-gwdt is a generic SBSA binding.
Replace the SBSA match with SoC-specific Marvell compatibles
marvell,cn10624-wdt and marvell,cn9670-wdt.
These compatibles align with the upstream Linux device tree binding:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/watchdog/marvell,cn10624-wdt.yaml
Reviewed-by: Aaro Koskinen <[email protected]>
Signed-off-by: Juuso Rinta <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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The WOR register is 32 bits, so any tick count exceeding U32_MAX is
truncated by writel(). A large requested timeout can wrap to a small
value causing the watchdog to fire sooner than requested.
Clamp the calculated value to U32_MAX prior to writing the register so
over-large requests will be set to the maximum timeout value.
Found by code review.
Signed-off-by: Juuso Rinta <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Rockchip SoCs typically reset with all (or most) clocks ungated. Because
of this, U-Boot clock drivers for Rockchip typically do not implement
the optional clk-uclass enable/disable ops.
Normal driver model behavior is to return -ENOSYS when an uclass ops
is not implemented.
Ignore -ENOSYS to allow the designware watchdog driver to be probed on
platforms that do not implement the clk-uclass enable/disable ops, e.g.
Rockchip RK3308.
Signed-off-by: Jonas Karlman <[email protected]>
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As exposed by "make randconfig", we have an issue with the dependencies
for WDT_MAX6370. It needs to select both GPIO and DM_GPIO not just
DM_GPIO.
Signed-off-by: Tom Rini <[email protected]>
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Update the orion_wdt.c to support armada-xp and similar SoCs. The WDT
block used in armada-xp is fairly close to the armada-380 with just a
few differences that can be handled based on the compatible property.
Signed-off-by: Chris Packham <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Replace hardcoded WDOG_BASE_ADDR with driver model based dynamic address
lookup from device tree, allowing reset_cpu() to dynamically locate
watchdog devices from device tree.
This change also enables CONFIG_WDT for relevant boards and ensures the
watchdog nodes are available for driver model usage.
- Remove hardcoded WDOG_BASE_ADDR from hw_watchdog_* functions
- Reimplement reset_cpu() using UCLASS_WDT device iteration
- Add ulp_wdt_expire_now() callback for standard WDT interface
- Pass wdog register pointer to hw_watchdog_set_timeout()
- Enable CONFIG_WDT for boards using ULP watchdog
- Remove wdog3 status = "disabled" overrides from U-Boot device tree
overlays, as the watchdog device needs to be accessible for driver
model based reset functionality.
Signed-off-by: Alice Guo <[email protected]>
Acked-by: Francesco Dolcini <[email protected]> # Toradex boards
Reviewed-by: Peng Fan <[email protected]>
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After discussion with the devicetree maintainers we agreed to not extend
lists with the generic compatible "apple,wdt" anymore [1]. Use
"apple,t8103-wdt" as base compatible as it is the SoC driver and
bindings were originally written for.
The t602x (M2 Pro/Max/Ultra) devicetrees submitted in [2] use this
compatible as fallback instead of "apple,wdt".
Link: https://lore.kernel.org/asahi/[email protected]/ [1]
Link: https://lore.kernel.org/asahi/[email protected]/ [2]
Signed-off-by: Janne Grunau <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Acked-by: Mark Kettenis <[email protected]>
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Add support of Renesas R-Car Gen5 window watchdog timer. Timeout
configuration is derived from CONFIG_WATCHDOG_TIMEOUT_MSECS, which
is more accurate than the 1-second granularity 'timeout' passed to
.start callback.
Reviewed-by: Stefan Roese <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
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The U_BOOT_DRIVER macro creates a list of drivers used at link time, and
all entries here must be unique. This in turn means that all entries in
the code should also be unique in order to not lead to build failures
later with unexpected build combinations. Typically, the problem we have
here is when a driver is obviously based on another driver and didn't
update this particular field and so while the name field reflects
something unique the linker entry itself is not. In a few places this
provides a more suitable string name as well, however.
Reviewed-by: Marek Vasut <[email protected]>
Reviewed-by: Svyatoslav Ryhel <[email protected]> # Tegra
Reviewed-by: Peter Robinson <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Prevent the Qualcomm watchdog from autostarting and ensure it's stopped
when the driver probed. In some cases the watchdog is left running by
a previous bootloader stage. Disable autostart so it isn't left running
when we boot into the OS, this behaviour can be changed by enabling
autostart in the board defconfig.
Reviewed-by: Stefan Roese <[email protected]>
Reviewed-by: Sumit Garg <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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Prepare v2026.04-rc4
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After years of developing the ADI ADSP platform, Timesys was purchased
by another company and is no longer contracted to maintain the platform.
Signed-off-by: Philip Molloy <[email protected]>
Reviewed-by: Greg Malysa <[email protected]>
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Julien Stephan <[email protected]> says:
This series adds basic support for Mediatek soc MT8195:
- clock driver
- watchdog
- add a new macro helper to define gate clock. Other driver can be
cleaned later to use the new macro
Other driver will be added later.
It will also serve as basis for board support such as MT8395_EVK based
on MT8195.
Link: https://lore.kernel.org/r/[email protected]
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This adds basic support for MediaTek MT8195 SoC.
Add watchdog support by adding upstream compatible string.
Signed-off-by: Julien Stephan <[email protected]>
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Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and
drop the unnecessary inclusion of asm/global_data.h.
Headers should be included directly by the files that need them,
rather than indirectly via global_data.h.
Reviewed-by: Patrice Chotard <[email protected]> #STMicroelectronics boards and STM32MP1 ram test driver
Tested-by: Anshul Dalal <[email protected]> #TI boards
Acked-by: Yao Zi <[email protected]> #TH1520
Signed-off-by: Peng Fan <[email protected]>
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Added a check to ensure the requested timeout does not exceed the
hardware's maximum supported value. This prevents register overflow
and ensures watchdog reliability.
So, added a check in qcom_wdt_start() to ensure the requested timeout
does not exceed the hardware-supported maximum value. If the requested
value exceeds the maximum value, then the timeout is clamped
at maximum value.
The timeout is first converted to watchdog ticks and then compared
against QCOM_WDT_MAX_TIMEOUT. This helps prevent misconfiguration
and potential watchdog misbehavior due to overflow.
QCOM_WDT_MAX_TIMEOUT is set to 0xFFFFF, as Qualcomm SoCs typically
use 20 bits to store bark/bite timeout values.
This work builds upon the previous submission:
https://lore.kernel.org/u-boot/[email protected]/
Signed-off-by: Gopinath Sekar <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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Julien Stephan <[email protected]> says:
The MediaTek MT8188 is a ARM64-based SoC with a dual-core Cortex-A78
cluster and a six-core Cortex-A55 cluster. It includes UART, SPI,
USB3.0 dual role, SD and MMC cards, UFS, PWM, I2C, I2S, S/PDIF, and
several LPDDR3 and LPDDR4 options.
This series adds basic support for MT8188.
Link: https://lore.kernel.org/r/[email protected]
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This adds basic support for MediaTek MT8188 SoC.
Add watchdog support by adding upstream compatible string.
Add tphy support by adding "mediatek,generic-tphy-v2" compatible string
in arch/arm/dts/mt8188-u-boot.dtsi
Signed-off-by: Julien Masson <[email protected]>
Signed-off-by: Julien Stephan <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Reviewed-by: Macpaul Lin <[email protected]>
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Calculate a timeout value that is close to the requested value.
Signed-off-by: Stanley Chu <[email protected]>
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Provide support for Tegra watchdog functionality. The WATCHDOG index 0 in
conjunction with TIMER 5 is used inline with existing Linux kernel driver.
Signed-off-by: Lukasz Majewski <[email protected]>
Reviewed-by: Svyatoslav Ryhel <[email protected]>
Signed-off-by: Svyatoslav Ryhel <[email protected]>
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The WDT_DAVINCI driver is not safe to compile on 64bit platforms such as
allyesconfig on a 64bit host. Tighten the dependencies here to the
platforms which could use it today.
Signed-off-by: Tom Rini <[email protected]>
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A few watchdog drivers cannot build without access to some platform
specific header files. Express those requirements in Kconfig as well.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Enable watchdog as early as possible after clock initialization
which is set at 10 seconds.
Signed-off-by: Alif Zakuan Yuslaimi <[email protected]>
Reviewed-by: Tien Fong Chee <[email protected]>
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On STM32MP reference boards, the watchdog is started by a previous
boot stage (e.g. bootrom or secure OS), so the config flag
WATCHDOG_AUTOSTART is not required.
It's preferable to rely on the DT properties "u-boot,autostart" or
"u-boot,noautostart", if needed.
For backward compatibility on defconfigs that are based on SPL,
thus cannot rely on a previous boot stage for starting the
watchdog, enable WATCHDOG_AUTOSTART in their respective defconfig.
The change in stm32mp15_dhsom.config is propagated to:
- configs/stm32mp15_dhcom_basic.config
- configs/stm32mp15_dhcor_basic.config
and then to:
- stm32mp15_dhcom_basic_defconfig
- stm32mp15_dhcom_drc02_basic_defconfig
- stm32mp15_dhcom_pdk2_basic_defconfig
- stm32mp15_dhcom_picoitx_basic_defconfig
- stm32mp15_dhcor_avenger96_basic_defconfig
- stm32mp15_dhcor_basic_defconfig
- stm32mp15_dhcor_drc_compact_basic_defconfig
- stm32mp15_dhcor_testbench_basic_defconfig
Signed-off-by: Patrice Chotard <[email protected]>
Signed-off-by: Antonio Borneo <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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Add a mean to check the IWDG status based on the peripheral version.
This is done by either checking the status bit ONF either by updating
the reload register with the same value and check if the reload succeed.
Signed-off-by: Clément Le Goffic <[email protected]>
Signed-off-by: Antonio Borneo <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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The optional SMCWD_GET_TIMELEFT command can be used to detect if
the watchdog has already been started.
See the implementation in OP-TEE secure OS [1].
At probe time, check if the watchdog is already started and then
call wdt_set_force_autostart(). This will keep U-Boot pinging the
watchdog even when the property 'u-boot,noautostart' is present.
Link: https://github.com/OP-TEE/optee_os/commit/a7f2d4bd8632 [1]
Signed-off-by: Antonio Borneo <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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The watchdog could have been already started by a previous boot
stage (e.g. bootrom or secure OS). U-Boot has to start and kick
the watchdog even when CONFIG_WATCHDOG_AUTOSTART is not enabled
or when the DT property u-boot,noautostart is present.
Add the helper wdt_set_force_autostart() that can be called by the
driver's probe() when it detects that the watchdog has already
been started and is running.
Co-developed-by: Patrice Chotard <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
Signed-off-by: Antonio Borneo <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-snapdragon
CI: https://source.denx.de/u-boot/custodians/u-boot-snapdragon/-/pipelines/27056
- Fix unused access in ufetch
- Add missing clock for SM8650
- Port the Linux SPMI GPIO driver and port over SM8550 (other platforms
should follow)
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On some Qualcomm platforms, such as Dragonwing boards, the WDT_EN
register is write-only. Reading it back after enabling the watchdog
can return invalid data or cause unexpected behavior.
In particular, the check:
if (readl(wdt_addr(wdt, WDT_EN)) != 1)
may fail even though the watchdog is correctly enabled and running.
This leads to misleading error messages and unnecessary failures.
Removing the read check ensures compatibility and avoids false
negatives on platforms where WDT_EN is not readable.
This work builds upon this previous submission:
https://lore.kernel.org/u-boot/[email protected]/
Signed-off-by: Balaji Selvanathan <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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With the removal of the last i.MX31 platform we can remove the rest of
the underlying architecture code as well.
Fixes: f247354708ec ("arm: Remove mx31pdk board")
Signed-off-by: Tom Rini <[email protected]>
Acked-by: Peng Fan <[email protected]>
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This patch enhances the Qualcomm watchdog driver by introducing
support for dynamic timeout configuration. Specifically:
- Calculates and sets the bark and bite timeout values based on
the clock rate and the requested timeout in milliseconds.
- Adds retrieval of the watchdog clock rate during probe using
the common clock framework.
- Adds a default timeout value for ARCH_SNAPDRAGON
in WATCHDOG_TIMEOUT_MSECS.
These changes improve the configurability and accuracy of the
watchdog timer on Qualcomm platforms.
This work builds upon the previous submission:
https://lore.kernel.org/all/[email protected]/
Signed-off-by: Balaji Selvanathan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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Some Qualcomm device vendors decide to turn the watchdog on in the
bootloader, resulting in the device being reset if it isn't petted every
~30 seconds. Introduce a driver to keep the watchdog happy and prevent this
annoying behaviour.
Signed-off-by: Paul Sajna <[email protected]>
Co-authored-by: Paul Sajna <[email protected]>
Tested-by: Paul Sajna <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Acked-by: Sumit Garg <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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https://source.denx.de/u-boot/custodians/u-boot-at91 into next
First set of u-boot-at91 features for the 2025.10 cycle:
This feature set includes the addition of new sam9x7 SoC and a new board
named sam9x7-curiosity. There is also new support for sam9x60 compatible
at91 watchdog.
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SAM9X60 has a slightly different watchdog implementation:
- Timer value moved into a new register WLR
- Some MR register fields have their position changed
This patch add SAM9X60 support, also adds a compatible
for SAMA5D4 which is the same as existing SAM9260.
Signed-off-by: Zixun LI <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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"wdt" is a better name for watchdog rather than generic "priv".
Signed-off-by: Zixun LI <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Use the name "mr" since we are referring to timer mode register.
Signed-off-by: Zixun LI <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Add support of Renesas R-Car Gen4 watchdog timer. Timeouts up to
8184.0s are supported (CKS1 register is not involved). The watchdog
uses the clock of type CLK_TYPE_GEN4_MDSEL.
The timeout is set in
dts/upstream/src/arm64/renesas/r8a779f0-spider-cpu.dtsi section &rwdt.
This driver is based on upstream linux commit:
e70140ba0d2b("Get rid of 'remove_new' relic from platform driver struct")
Signed-off-by: Shmuel Leib Melamud <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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The Allwinner A523 SoC moved the watchdog into a separate MMIO frame,
and also shifted the registers a bit: the control, config, and mode
register are located four bytes earlier.
Add the new compatible string, and connect it to the new struct
describing the new register layout.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Caleb Connolly <[email protected]> says:
In Simon's series reworking autoprobe, a discussion came up about
DM_FLAG_PROBE_AFTER_BIND, specifically that it wasn't very clear where
this flag should be used.
This series implements my suggestions made there to clarify the use of
this flag, and fixup the two driver which erroneously apply it to their
driver struct (this does nothing).
Link: https://lore.kernel.org/u-boot/[email protected]/
Link: https://lore.kernel.org/r/[email protected]
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Some drivers set DM_FLAG_PROBE_AFTER_BIND, this does nothing since it's
only every applied on a per-device basis.
Remove the flags.
Signed-off-by: Caleb Connolly <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Michal Simek <[email protected]>
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Co-developed-by: Greg Malysa <[email protected]>
Signed-off-by: Greg Malysa <[email protected]>
Co-developed-by: Ian Roberts <[email protected]>
Signed-off-by: Ian Roberts <[email protected]>
Signed-off-by: Vasileios Bimpikas <[email protected]>
Signed-off-by: Utsav Agarwal <[email protected]>
Signed-off-by: Arturs Artamonovs <[email protected]>
Signed-off-by: Oliver Gaskell <[email protected]>
Signed-off-by: Nathan Barrett-Morrison <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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- rti: support SPL (or re-start) (Alexander)
- rti: drop hack manipulating WDT clock rate (Alexander)
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