Part of the new HAL requires float_t type definition. For that it includes
math.h header file which unfortunately brings a lot of math functions in.
One of them, 'log' conflicts with FreeBSD log function defined in systm.h
Provided hack is really just a crude work around this issue. Never thought
that Motorola 68881 would help me even in 21st century.
This patch updates STM32 H7 HAL source files. The files are taken from two
STM projects from their github.com repositories:
(i)
https://github.com/STMicroelectronics/stm32h7xx_hal_driver.git
The project files are still available under BSD-3 license
and the version/commit used is:
d5fc8d05fc16fa2a2a2f948cf6c6ab39e78358e1
which represents post Release v1.11.1 development tree.
(ii)
https://github.com/STMicroelectronics/cmsis_device_h7.git
The project files were re-licensed from previous BSD-3 to Apache 2.0
license. Fortunately the project does not contain NOTICE file so no need
to do anything special when used in RTEMS.
The project version/commit imported is:
6d5ef249bec5177e0e2a0880ed62df2132874d99
which is code-wise Release v1.10.3 exactly.
The flash configuration is something very board specific. So move the
file to a board specific location. Beneath that, not all controllers and
configurations need the flash config right at the address 0 of the
flash. For example on the i.MXRT11xx, the config has an offset for some
flash types.
The imx-gpio driver used in i.MX and i.MXRT BSPs generates a name based
on a fixed string. The original code only used one digit for the
controller. With the 13 GPIO controllers of the i.MXRT1166, that isn't
enough any more. This patch extends the name to two digits which should
be enough for the next controller generations.
CAVEAT: license change from BSD to Apache2 license!
Explanation:
The imported files come from CMSIS v5 project available on:
https://github.com/ARM-software/CMSIS_5/tree/develop
The files imported are located inside the CMSIS/Core/Include
project sub-directory.
The project does not provide any NOTICE file in its root directory nor
in the directory of the imported files.
The NOTICE file and its usage in the Apache 2 license was/is
so far the only issue mentioned in discussion of RTEMS developers/users
when considering inclusion of the code under Apache 2 license
into the RTEMS project.
Since the CMSIS v5 project is free from this legal hinder, we may freely
use it and update files to the latest version.
Technical: the patch replaces code from 2015 with the latest version
which brings quite a lot of bug fixes and most importantly opens
possibilities to support MCUs based on new ARM cores.
This adds support for the STM32H750B-DK discovery kit. This kit includes
a built-in STLINKv3 debugger which provides a USB serial bridge for
USART3. USART1 is routed to the Arduino header and USART2 is routed to
the STMOD connector. This BSP reuses what would otherwise be duplicated
files from the stm32h747i-disco BSP. Note that system_stm32h7xx.c has
been imported from the STM repository with two minor changes wrapped
with #if __rtems__. This hardware has been tested with hello and ticker.
Add <rtems/termiosdevice.h> which does not depend on <rtems/libio.h> to
provide rtems_termios_device_context and rtems_termios_device_handler.
For polled serial device drivers, this removes a header file dependency
to the full file system support.
On most i.MX* the upper bits in SW_PAD_CTL are reserved. On some chips,
like the i.MXRT1166, they are a domain write protection. Setting them to
1 can have unexpected side effects.
The device tree uses these bits for some flags. Make sure that they are
not accidentally written to some value.
The different variants of the i.MXRT have some minimal differences in
the fsl_flexspi_nor_config.h. Make sure that the header supports the
different chips.
The defines for the different clock frequencies in the
fsl_clock_config.h do not represent the clock frequencies that have been
set up in the registers. Remove them to avoid someone trusting in
correct values.
The mcux_sdk has a different interface for getting the clock for
IMXRT11xx than for getting it in IMXRT10xx. Adapt simple drivers to
support that interface.
Christian Mauderer
Sebastian Huber
Karel Gardas
Kinsey Moore
Joel Sherrill