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STM32WL port: clock management updated, PWR_PUCRx/PWR_PDCRx conf/init added. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@14454 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
vrepetenko 2021-05-31 18:47:38 +00:00
parent e4c81b1f7c
commit d7f811f4dd
3 changed files with 112 additions and 24 deletions
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13
demos/STM32/RT-STM32WL55JC-NUCLEO64/cfg/mcuconf.h
View File

@ -39,8 +39,15 @@
#define STM32_NO_INIT FALSE
#define STM32_CLOCK_DYNAMIC FALSE
#define STM32_VOS STM32_VOS_RANGE1
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_PWR_CR2 (PWR_CR2_PLS_LVL0 | PWR_CR2_PVDE)
#define STM32_PWR_PUCRA (0U)
#define STM32_PWR_PDCRA (0U)
#define STM32_PWR_PUCRB (0U)
#define STM32_PWR_PDCRB (0U)
#define STM32_PWR_PUCRC (0U)
#define STM32_PWR_PDCRC (0U)
#define STM32_PWR_PUCRH (0U)
#define STM32_PWR_PDCRH (0U)
#define STM32_HSI16_ENABLED TRUE
#define STM32_LSI_ENABLED TRUE
#define STM32_LSIPRE STM32_LSIPRE_NODIV
@ -65,7 +72,7 @@
#define STM32_MCOSEL STM32_MCOSEL_NOCLOCK
#define STM32_MCOPRE STM32_MCOPRE_DIV1
#define STM32_LSCOSEL STM32_LSCOSEL_NOCLOCK
#define STM32_PWR_CR2 (PWR_CR2_PLS_LVL0 | PWR_CR2_PVDE)
/*
* Peripherals clock sources.

55
os/hal/ports/STM32/STM32WLxx/hal_lld.c
View File

@ -43,6 +43,14 @@
*/
#define STM32_RCC_CR_RESET 0x00000061U
/**
* @brief PWR CR bits safe for fast switch.
*/
#define STM32_PWR_CR1_SAFE_ONLY_MASK (PWR_CR1_LPR | \
PWR_CR1_FPDS | \
PWR_CR1_SUBGHZSPINSSSEL | \
PWR_CR1_LPMS_Msk)
/**
* @brief MSI range array size.
*/
@ -65,8 +73,6 @@ uint32_t SystemCoreClock = STM32_HCLK;
const halclkcfg_t hal_clkcfg_reset = {
.pwr_cr1 = PWR_CR1_VOS_0,
.pwr_cr2 = 0U,
.pwr_cr3 = PWR_CR3_EWRFBUSY,
.pwr_cr4 = 0U,
.rcc_cr = RCC_CR_MSIRANGE_6 | RCC_CR_MSION,
.rcc_cfgr = RCC_CFGR_PPRE2F | RCC_CFGR_PPRE1F | RCC_CFGR_HPREF,
.rcc_extcfgr = 0U,
@ -80,8 +86,6 @@ const halclkcfg_t hal_clkcfg_reset = {
const halclkcfg_t hal_clkcfg_default = {
.pwr_cr1 = STM32_VOS | PWR_CR1_DBP,
.pwr_cr2 = STM32_PWR_CR2,
.pwr_cr3 = STM32_PWR_CR3,
.pwr_cr4 = STM32_PWR_CR4,
.rcc_cr = RCC_CR_MSIRANGE_6 | RCC_CR_MSION
#if STM32_HSI16_ENABLED
| RCC_CR_HSIKERON | RCC_CR_HSION
@ -463,23 +467,21 @@ static bool hal_lld_clock_check_tree(const halclkcfg_t *ccp) {
return false;
}
/**
* @brief Switches to a different clock configuration.
* @brief Configures full clock settings.
*
* @param[in] ccp pointer to clock a @p halclkcfg_t structure
* @return The clock switch result.
* @return The clock configuration result.
* @retval false if the clock switch succeeded
* @retval true if the clock switch failed
*
* @notapi
*/
bool hal_lld_clock_raw_switch(const halclkcfg_t *ccp) {
bool hal_lld_clock_raw_config(const halclkcfg_t *ccp) {
/* Restoring default PWR settings related clocks and sleep modes.*/
PWR->CR1 = PWR_CR1_VOS_0;
PWR->CR2 = 0U;
PWR->CR3 = PWR_CR3_EWRFBUSY;
PWR->CR4 = 0U;
/* Waiting for all regulator status bits to be cleared, this means that
power levels are stable.*/
@ -533,20 +535,16 @@ bool hal_lld_clock_raw_switch(const halclkcfg_t *ccp) {
/* Final PWR modes.*/
PWR->CR1 = ccp->pwr_cr1;
PWR->CR2 = ccp->pwr_cr2;
PWR->CR3 = ccp->pwr_cr3;
PWR->CR4 = ccp->pwr_cr4;
/* Waiting for the correct regulator state.*/
if ((ccp->pwr_cr1 & PWR_CR1_LPR) == 0U) {
/* Main mode selected.*/
while ((PWR->SR2 & PWR_SR2_REGLPF) != 0U) {
/* Waiting for the regulator to be in main mode.*/
}
}
else {
/* Low power mode selected.*/
while ((PWR->SR2 & PWR_SR2_REGLPF) == 0U) {
/* Waiting for the regulator to be in low power mode.*/
}
@ -554,9 +552,7 @@ bool hal_lld_clock_raw_switch(const halclkcfg_t *ccp) {
/* Switching to the final clock source.*/
RCC->CFGR = (RCC->CFGR & ~RCC_CFGR_SW_Msk) | (ccp->rcc_cfgr & RCC_CFGR_SW_Msk);
/* Apply RCC EXTCFGR.*/
RCC->EXTCFGR = ccp->rcc_extcfgr;
while ((RCC->CFGR & RCC_CFGR_SWS) != ((ccp->rcc_cfgr & RCC_CFGR_SW_Msk) << RCC_CFGR_SWS_Pos)) {
/* Waiting for clock switch.*/
}
@ -568,6 +564,7 @@ bool hal_lld_clock_raw_switch(const halclkcfg_t *ccp) {
return false;
}
#endif /* defined(HAL_LLD_USE_CLOCK_MANAGEMENT) */
/*===========================================================================*/
@ -620,13 +617,25 @@ void stm32_clock_init(void) {
/* RTC clock enable.*/
#if HAL_USE_RTC
rccEnableAPB1R1(RCC_APB1ENR1_RTCAPBEN, false)
rccEnableAPB1R1(RCC_APB1ENR1_RTCAPBEN, false);
#endif
#if defined(HAL_LLD_USE_CLOCK_MANAGEMENT)
/* Backup domain made accessible.*/
PWR->CR1 |= PWR_CR1_DBP;
/* Static PWR initializations.*/
PWR->CR3 = STM32_PWR_CR3;
PWR->CR4 = STM32_PWR_CR4;
PWR->PUCRA = STM32_PWR_PUCRA;
PWR->PDCRA = STM32_PWR_PDCRA;
PWR->PUCRB = STM32_PWR_PUCRB;
PWR->PDCRB = STM32_PWR_PDCRB;
PWR->PUCRC = STM32_PWR_PUCRC;
PWR->PDCRC = STM32_PWR_PDCRC;
PWR->PUCRH = STM32_PWR_PUCRH;
PWR->PDCRH = STM32_PWR_PDCRH;
/* Backup domain reset.*/
bd_reset();
@ -635,7 +644,7 @@ void stm32_clock_init(void) {
lsi_init();
/* Selecting the default clock/power/flash configuration.*/
if (hal_lld_clock_raw_switch(&hal_clkcfg_default)) {
if (hal_lld_clock_raw_config(&hal_clkcfg_default)) {
osalSysHalt("clkswc");
}
@ -656,6 +665,14 @@ void stm32_clock_init(void) {
PWR->CR2 = STM32_PWR_CR2;
PWR->CR3 = STM32_PWR_CR3;
PWR->CR4 = STM32_PWR_CR4;
PWR->PUCRA = STM32_PWR_PUCRA;
PWR->PDCRA = STM32_PWR_PDCRA;
PWR->PUCRB = STM32_PWR_PUCRB;
PWR->PDCRB = STM32_PWR_PDCRB;
PWR->PUCRC = STM32_PWR_PUCRC;
PWR->PDCRC = STM32_PWR_PDCRC;
PWR->PUCRH = STM32_PWR_PUCRH;
PWR->PDCRH = STM32_PWR_PDCRH;
/* MSI clock reset.*/
msi_reset();
@ -724,7 +741,7 @@ bool hal_lld_clock_switch_mode(const halclkcfg_t *ccp) {
return true;
}
if (hal_lld_clock_raw_switch(ccp)) {
if (hal_lld_clock_raw_config(ccp)) {
return true;
}

68
os/hal/ports/STM32/STM32WLxx/hal_lld.h
View File

@ -389,6 +389,62 @@
#define STM32_PWR_CR4 (0U)
#endif
/**
* @brief PWR PUCRA register initialization value.
*/
#if !defined(STM32_PWR_PUCRA) || defined(__DOXYGEN__)
#define STM32_PWR_PUCRA (0U)
#endif
/**
* @brief PWR PDCRA register initialization value.
*/
#if !defined(STM32_PWR_PDCRA) || defined(__DOXYGEN__)
#define STM32_PWR_PDCRA (0U)
#endif
/**
* @brief PWR PUCRB register initialization value.
*/
#if !defined(STM32_PWR_PUCRB) || defined(__DOXYGEN__)
#define STM32_PWR_PUCRB (0U)
#endif
/**
* @brief PWR PDCRB register initialization value.
*/
#if !defined(STM32_PWR_PDCRB) || defined(__DOXYGEN__)
#define STM32_PWR_PDCRB (0U)
#endif
/**
* @brief PWR PUCRC register initialization value.
*/
#if !defined(STM32_PWR_PUCRC) || defined(__DOXYGEN__)
#define STM32_PWR_PUCRC (0U)
#endif
/**
* @brief PWR PDCRC register initialization value.
*/
#if !defined(STM32_PWR_PDCRC) || defined(__DOXYGEN__)
#define STM32_PWR_PDCRC (0U)
#endif
/**
* @brief PWR PUCRD register initialization value.
*/
#if !defined(STM32_PWR_PUCRH) || defined(__DOXYGEN__)
#define STM32_PWR_PUCRH (0U)
#endif
/**
* @brief PWR PDCRD register initialization value.
*/
#if !defined(STM32_PWR_PDCRH) || defined(__DOXYGEN__)
#define STM32_PWR_PDCRH (0U)
#endif
/**
* @brief Enables or disables the HSI16 clock source.
*/
@ -1504,14 +1560,22 @@ typedef uint32_t halfreq_t;
typedef struct {
uint32_t pwr_cr1;
uint32_t pwr_cr2;
uint32_t pwr_cr3;
uint32_t pwr_cr4;
uint32_t rcc_cr;
uint32_t rcc_cfgr;
uint32_t rcc_extcfgr;
uint32_t rcc_pllcfgr;
uint32_t flash_acr;
} halclkcfg_t;
/**
* @brief Type of a clock switch-only structure.
*/
typedef struct {
uint32_t pwr_cr1;
uint32_t rcc_cfgr;
uint32_t rcc_extcfgr;
uint32_t flash_acr;
} halclkswc_t;
#endif /* defined(HAL_LLD_USE_CLOCK_MANAGEMENT) */
/*===========================================================================*/