Re-implemented both us_ticker and lp_ticker to match the new API and specifications.
Details:
* On EFM32GG, EFM32WG, EFM32LG, EFM32HG, EFM32ZG: Use the RTC peripheral to back lp_ticker, and a TIMER to back us_ticker.
* On EFM32PG, EFR32MG, EFM32PG12, EFR32MG12: Use the RTCC peripheral to back lp_ticker (dual-purpose, also used to back RTC), and a TIMER to back us_ticker.
mbed RTC specifications now dictate that the RTC needs to retain and keep on counting through reset. On Silicon Labs parts, this means the RTC API can not be backed by the Silicon Labs RTC peripheral, since that doesn't provide retention functionality.
Therefore:
* On EFM32GG, EFM32WG, EFM32LG: mbed RTC API is now backed by BURTC.
* On EFM32PG, EFR32MG, EFM32PG12, EFR32MG12: mbed RTC API is now backed by RTCC.
* On EFM32ZG, EFM32HG: mbed RTC API is sadly no longer supported, since these chips don't have retained memory.
# Conflicts:
# targets/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c
# targets/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
# targets/targets.json
This commit fixes#5840. Fix verified by running mbed_hal-lp_ticker test suite with preloaded RTC counter such that it wrapped in the middle of the suite.
Also removes explicit sleep blocking from the us_ticker implementation, since sleep blocking for us tickers is done at mbed HAL level now. This was causing one of the lp_ticker tests to fail.
* Using PinName as bitfield doesn't work without warnings, since NC
needs all 32 bits to be represented.
* lp_ticker should not be freed when interrupt is disabled, since this
will kill the timebase.
* Update i2c driver to tackle multiple I2C object instances on different pins
* Update pinmap to enable the extra peripherals of EFx32xG12 over EFx32xG1
As asked by @0xc0170 in PR #3934, we won't be using device_has for indicating RF/Crypto features any longer. RF config options moved to the SL_RAIL lib.json, crypto config options will come with mbedTLS integration.
* Off by one error in the linker scripts reserved one word too little for the vector table
* Re-apply uvisor changes to emlib. To allow uvisor to run, we should make accesses to the romtable through uvisor's secure read gateway
* Copypasta in target name (EFM32PG12, not EFR32PG12)
* Copypasta in the pin definitions (thanks @akselsm)
* Forgot to update PortName for extra ports on MG/PG12
Moving the per-board clock configuration (which oscillators are available on the board, their frequencies, and which ones to use) as config options to the target database. This way, they're more easily overridable when third parties start creating boards with EFM32 MCUs
First wave of squashing header files in order to get to a more sensible folder tree.
* Moved header files with 100% similarity to common folder
* Created a CommonPinNames.h header containing the base pin names P[A-F][0-15] and NC
Steven Cooreman
Cruz Monrreal
Jimmy Brisson
Aksel Skauge Mellbye
Sam Grove
Bartek Szatkowski
Steven Cooreman