HWINFO drivers should be responsible for ensuring that
the data structure is a sequence of bytes. That is not
what the current sam0 and nordic drivers do. The drivers
read the data as u32_t and then memcpy the data to a
buffer. This ensures the data has the endianness of the
underlying MCU, which in this case is Cortex M0 which
is little endian.
This commit fixes the endianness so the data can be
interpreted as a "left to right sequence of bytes".
This commit updates the API doc to provide clarification
of the data structure.
Add to 2.3 release notes.
Fixes#23444, #24103
Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
Convert older DT_INST_ macro use in atmel sam0 drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
move hwinfo.h to drivers/hwinfo.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Change code from using now deprecated DT_<COMPAT>_<INSTANCE>_<PROP>
defines to using DT_INST_<INSTANCE>_<COMPAT>_<PROP>.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add driver support for Atmel SAM0 device ID, which is 16-bytes long.
The device ID can simply be read from memory at a known location, but
the location is only described in the data sheet, not in ASF.
For SAMD2x it's 0x0080A00C, 0x0080A040, 0x0080A044 & 0x0080A048.
For SAMD5x it's 0x008061FC, 0x00806010, 0x00806014 & 0x00806018.
This adds a new property to the device tree to define the device ID
registers for this SoC family.
Signed-off-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Kumar Gala