Convert older DT_INST_ macro use in cc13xx_cc26xx drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert older DT_INST_ macro use in stellaris drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The documentation was not updated following a change to the way
DT_PROP_LEN works which was made in review. Fix it.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
We get the following error:
ValueError: max() arg is an empty sequence
if the compatiable section of the device tree is empty or doesn't exist.
Fix this by havingin max_len get a default value of 0.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This adds multi-processing support for Intel Apollo Lake ADSP.
Some of the start-up code is borrowed from ESP32.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds the per CPU address offset for intel_apl_adsp, so
the correct base address can be calculated under SMP.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The GCC 9.2 toolchain for intel_apl_adsp has builtin atomic
functions already so we can use that instead of the custom
one in arch. This allows the atomic function calls to be
inlined.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds a rather primitive driver for use with the Intra-DSP
Communication (IDC) on the DSP on certain Intel SoCs. The IDC
generates interrupts from one core to another by writing to
certain registers. This is also being utilized as
the scheduler IPI since it can interrupt other cores.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds the DTS binding for the CAVS Intra-DSP Communication (IDC)
driver for the DSP on Intel SoC.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds a sys init level which allows device and sys_init
to be done after SMP initialization, z_smp_init(), when all
cores are up and running.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Under multi-processing, only the first CPU#0 needs to go through
setting up the kernel structs and clearing out BSS (among others).
There is no need for other CPUs to do those tasks. Since each
Xtensa core starts using the same boot vector, CPUs other than #0
need to skip all the startup tasks by not calling to z_cstart().
So provide another entry point for those CPUs. Note that Xtensa
arch is highly configurable. So the implementation of the entry
point is up to each individual SoC config.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
EXCSAVE2 is used for level 2 exception save location.
Since we are using level 2 interrupts, use EXCSAVE7
instead as level 7 interrupts are not being used
by the SoC.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The DSP wall clock timer is a timer driven directly by
external oscillator and is external to the CPU core(s).
It provides a common and synchronized counter for all
CPU cores (which is useful for SMP), instead of
indepedently running local core timer (xtensa_timer).
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The DSP wall clock timer on some Intel SoC is a timer driven
directly by external oscillator and is external to the CPU
core(s). It is not as fast as the internal core clock, but
provides a common and synchronized counter for all CPU cores
(which is useful for SMP).
This uses the RISCV timer as base as it is using 64-bit
counter.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The CAVS interrupt controller has different base addresses for
each CPU. When running under SMP, the driver needs to look at
the correct address for the CPU the ISR is running so interrupts
can be dispatched correctly. This adds a function to calculate
the correct base address. Note that each supported SoC may have
different offsets so per SoC config will need to added. Support
for intel_s1000 is added as an example.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The dw_ictl interrupt controller is an interrupt aggregator
supporting multi-level interrupts. Therefore, it needs to be
initialized earlier than any downstream interrupt controllers
and devices.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The cavs_ictl interrupt controller is an interrupt aggregator
supporting multi-level interrupts. Therefore, it needs to be
initialized earlier than any downstream interrupt controllers
and devices.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Under SMP, the main BSS section only needs to be zero-ed on CPU #0.
Other CPUs should not zero out BSS, or else it may cause CPU #0 to
crash on invalid data.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Adding documentation to inform users that characters may be lost if
polling is used and a character arrives while the system is in standby
mode.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Sleep mode 1 is supposed to be a low-latency sleep mode where devices
are left in active mode. Thus we should only bring devices to low-power
when in sleep mode 2 in sys_pm_policy_low_power_devices().
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
It was observed that leaving the pin type configured for i2c for SDA
and SCL results in higher power consumption during standby. So we are
resetting the pin type when bringing the i2c into low power mode, and
setting it back to the correct type when exiting low power mode.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Add a dependency on the I2C resource in the TI Power module,
reconfigure the peripheral upon CPU exiting standby, and add
support for device PM.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Add a dependency on the UART resource in the TI Power module,
reconfigure the UART upon CPU exiting standby, and add support
for device PM.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Adding a dependency on the GPIO resource in the TI Power module, and
configuring the edge detection on pads as a wakeup source.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
When power management is enabled, SYS_PM_STATE_LOCK is necessary
in order to prevent the power policy from automatically entering
certain sleep states.
Signed-off-by: Vincent Wan <vincent.wan@linaro.org>
Add @stephanosio as a code-owner for the tests/arch/arm
test suites, so they get auto-assigned in reviews.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Remove a side effect in an assertion check of the
expected reason after spurious interrupt handling.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Kumar Gala