Summary
The naming standard at https://cwiki.apache.org/confluence/display/NUTTX/Naming+FAQ requires that all MCU-private files begin with the name of the architecture, not up_.
This PR addresses only these name changes for the up_*.h files. There are only three, but almost 1680 files that include them:
up_arch.h
up_internal.h
up_vfork.h
The only change to the files is from including up_arch.h to arm_arch.h (for example).
The entire job required to be compatible with that Naming Convention will also require changing the naming of the up_() functions that are used only within arch/arm and board/arm.
Impact
There should be not impact of this change (other that one step toward more consistent naming).
Testing
stm32f4discovery:netnsh
* Simplify EINTR/ECANCEL error handling
1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx
* Unify the void cast usage
1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
Master
* Revert "Merged in yanqil-br/feature-multi_chan_pwm (pull request #973)"
This reverts commit aef0e0b538.
* arch/arm/src/{stm32/stm32f7/stm32h7/stm32l4}/stm32_pwm.c: configure multi-channel duty only if channel specified. This allows you to update duty cycle for a single channel
* nucleo-f303re/configs: add basic NSH configuration
* nucleo-f303re/configs/pwm: enable console on UART2 and set entry point to nsh_main
Approved-by: Gregory Nutt <gnutt@nuttx.org>
