The init infrastructure, found in `init.h`, is currently used by:
- `SYS_INIT`: to call functions before `main`
- `DEVICE_*`: to initialize devices
They are all sorted according to an initialization level + a priority.
`SYS_INIT` calls are really orthogonal to devices, however, the required
function signature requires a `const struct device *dev` as a first
argument. The only reason for that is because the same init machinery is
used by devices, so we have something like:
```c
struct init_entry {
int (*init)(const struct device *dev);
/* only set by DEVICE_*, otherwise NULL */
const struct device *dev;
}
```
As a result, we end up with such weird/ugly pattern:
```c
static int my_init(const struct device *dev)
{
/* always NULL! add ARG_UNUSED to avoid compiler warning */
ARG_UNUSED(dev);
...
}
```
This is really a result of poor internals isolation. This patch proposes
a to make init entries more flexible so that they can accept sytem
initialization calls like this:
```c
static int my_init(void)
{
...
}
```
This is achieved using a union:
```c
union init_function {
/* for SYS_INIT, used when init_entry.dev == NULL */
int (*sys)(void);
/* for DEVICE*, used when init_entry.dev != NULL */
int (*dev)(const struct device *dev);
};
struct init_entry {
/* stores init function (either for SYS_INIT or DEVICE*)
union init_function init_fn;
/* stores device pointer for DEVICE*, NULL for SYS_INIT. Allows
* to know which union entry to call.
*/
const struct device *dev;
}
```
This solution **does not increase ROM usage**, and allows to offer clean
public APIs for both SYS_INIT and DEVICE*. Note that however, init
machinery keeps a coupling with devices.
**NOTE**: This is a breaking change! All `SYS_INIT` functions will need
to be converted to the new signature. See the script offered in the
following commit.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
init: convert SYS_INIT functions to the new signature
Conversion scripted using scripts/utils/migrate_sys_init.py.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
manifest: update projects for SYS_INIT changes
Update modules with updated SYS_INIT calls:
- hal_ti
- lvgl
- sof
- TraceRecorderSource
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
tests: devicetree: devices: adjust test
Adjust test according to the recently introduced SYS_INIT
infrastructure.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
tests: kernel: threads: adjust SYS_INIT call
Adjust to the new signature: int (*init_fn)(void);
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Introduce DT nodes for NETC complex and enable its usage for
s32z270dc2_r52 boards. Using PSI0 as default networking interface and
Switch Port0 as it's the only port available on this board.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
Following updates previously done for other drivers, rename all
occurrences of S32 to NXP S32 to avoid ambiguity.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
Currently, memory from __rodata_region_end to __kernel_ram_start (or
_app_smem_start if config userspace) was uncovered by programable MPU
region. But to config static MPU region (nocache region is on ths
region), the programable MPU region need confg full patition.
Signed-off-by: Duong Vu Nam <duong.vunam@nxp.com>
Add a hidden Kconfig option to select the index of the target RTU
(Real-Time Unit) subsystem. This index can be used by peripheral
drivers, for example, to know the peripheral instance index since the
HAL is index-based.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
HAL for NXP S32 is updated to a newer version, hence some headers and
macro definitions must be updated accordingly.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
Introduce support for Pinctrl driver on NXP S32Z/E SoC's.
The NXP S32 pin controller is a singleton node responsible for
controlling the pin function selection and pin properties, based on the
pin node group approach. The pinmux configuration is encoded in a
32-bit value.
Each S32 SoC implementing Pinctrl must create a `pinctrl_soc.h` header
which define SoC-specific macros to initialize the pinctrl structure.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
This patch introduces support for NXP S32 devices, specifically for
S32Z27 from S32Z/E family.
NXP S32Z27 processors are composed of two Real-Time Units (RTU)
containing each four ARM Cortex-R52 cores with flexible split/lock
configuration, and dedicated internal SRAM.
Signed-off-by: Manuel Arguelles <manuel.arguelles@nxp.com>
