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Re-implement RTC for Silicon Labs targets 

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.
pull/7009/head
Steven Cooreman 2018-03-26 22:32:55 +02:00 committed by Bartek Szatkowski
parent f55becef9a
commit 4b3bde1082
2 changed files with 22 additions and 8 deletions
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14
targets/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c
View File

@ -125,6 +125,20 @@ void lp_ticker_free()
CMU_ClockEnable(cmuClock_RTC, false);
rtc_inited = false;
}
RTC_FreezeEnable(false);
}
void rtc_set_comp0_value(uint64_t value, bool enable)
{
rtc_enable_comp0(false);
/* Set callback */
RTC_FreezeEnable(true);
extended_comp0 = (uint32_t) (value >> RTC_BITS);
RTC_CompareSet(0, (uint32_t) (value & RTC_MAX_VALUE));
RTC_FreezeEnable(false);
rtc_enable_comp0(enable);
}
void lp_ticker_set_interrupt(timestamp_t timestamp)

16
targets/targets.json
View File

@ -2919,7 +2919,7 @@
"EFM32GG_STK3700": {
"inherits": ["EFM32GG990F1024"],
"progen": {"target": "efm32gg-stk"},
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH", "ITM"],
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH", "ITM"],
"forced_reset_timeout": 2,
"config": {
"hf_clock_src": {
@ -2972,7 +2972,7 @@
},
"EFM32LG_STK3600": {
"inherits": ["EFM32LG990F256"],
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"forced_reset_timeout": 2,
"device_name": "EFM32LG990F256",
"config": {
@ -3027,7 +3027,7 @@
"EFM32WG_STK3800": {
"inherits": ["EFM32WG990F256"],
"progen": {"target": "efm32wg-stk"},
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"device_has": ["ANALOGIN", "ANALOGOUT", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"forced_reset_timeout": 2,
"config": {
"hf_clock_src": {
@ -3188,7 +3188,7 @@
},
"EFM32PG_STK3401": {
"inherits": ["EFM32PG1B100F256GM32"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"forced_reset_timeout": 2,
"config": {
"hf_clock_src": {
@ -3251,7 +3251,7 @@
},
"EFR32MG1_BRD4150": {
"inherits": ["EFR32MG1P132F256GM48"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"forced_reset_timeout": 2,
"config": {
"hf_clock_src": {
@ -3294,7 +3294,7 @@
},
"TB_SENSE_1": {
"inherits": ["EFR32MG1P233F256GM48"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "FLASH"],
"forced_reset_timeout": 5,
"config": {
"hf_clock_src": {
@ -3342,7 +3342,7 @@
},
"EFM32PG12_STK3402": {
"inherits": ["EFM32PG12B500F1024GL125"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "TRNG", "FLASH"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "TRNG", "FLASH"],
"forced_reset_timeout": 2,
"config": {
"hf_clock_src": {
@ -3396,7 +3396,7 @@
"TB_SENSE_12": {
"inherits": ["EFR32MG12P332F1024GL125"],
"device_name": "EFR32MG12P332F1024GL125",
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "TRNG", "FLASH"],
"device_has": ["ANALOGIN", "I2C", "I2CSLAVE", "I2C_ASYNCH", "INTERRUPTIN", "LPTICKER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPISLAVE", "SPI_ASYNCH", "STDIO_MESSAGES", "USTICKER", "TRNG", "FLASH"],
"forced_reset_timeout": 5,
"config": {
"hf_clock_src": {