unleashed-firmware/targets/f7/furi_hal/furi_hal_clock.c
あく e0797131ec
FuriHal: add flash ops stats, workaround bug in SHCI_C2_SetSystemClock (#3657)
* FuriHal: add flash ops stats, workaround bug in SHCI_C2_SetSystemClock
* hal: flash: added FLASH_OP_DEBUG to enable latency measurement

Co-authored-by: hedger <hedger@nanode.su>
Co-authored-by: hedger <hedger@users.noreply.github.com>
2024-05-20 19:17:01 +01:00

282 lines
8.4 KiB
C

#include <furi_hal_clock.h>
#include <furi_hal_resources.h>
#include <furi.h>
#include <stm32wbxx_ll_pwr.h>
#include <stm32wbxx_ll_rcc.h>
#include <stm32wbxx_ll_hsem.h>
#include <stm32wbxx_ll_utils.h>
#include <stm32wbxx_ll_cortex.h>
#include <hsem_map.h>
#include <interface/patterns/ble_thread/shci/shci.h>
#define TAG "FuriHalClock"
#define CPU_CLOCK_EARLY_HZ 4000000
#define CPU_CLOCK_HSI16_HZ 16000000
#define CPU_CLOCK_HSE_HZ 32000000
#define CPU_CLOCK_PLL_HZ 64000000
#define TICK_INT_PRIORITY 15U
#define HS_CLOCK_IS_READY() (LL_RCC_HSE_IsReady() && LL_RCC_HSI_IsReady())
#define LS_CLOCK_IS_READY() (LL_RCC_LSE_IsReady() && LL_RCC_LSI1_IsReady())
void furi_hal_clock_init_early(void) {
LL_SetSystemCoreClock(CPU_CLOCK_EARLY_HZ);
LL_Init1msTick(SystemCoreClock);
}
void furi_hal_clock_deinit_early(void) {
}
void furi_hal_clock_init(void) {
/* HSE and HSI configuration and activation */
LL_RCC_HSE_SetCapacitorTuning(0x26);
LL_RCC_HSE_Enable();
LL_RCC_HSI_Enable();
while(!HS_CLOCK_IS_READY())
;
/* Select HSI as system clock source after Wake Up from Stop mode
* Must be set before enabling CSS */
LL_RCC_SetClkAfterWakeFromStop(LL_RCC_STOP_WAKEUPCLOCK_HSI);
LL_RCC_HSE_EnableCSS();
/* LSE and LSI1 configuration and activation */
LL_PWR_EnableBkUpAccess();
LL_RCC_LSE_SetDriveCapability(LL_RCC_LSEDRIVE_HIGH);
LL_RCC_LSE_Enable();
LL_RCC_LSI1_Enable();
while(!LS_CLOCK_IS_READY())
;
LL_EXTI_EnableIT_0_31(
LL_EXTI_LINE_18); /* Why? Because that's why. See RM0434, Table 61. CPU1 vector table. */
LL_EXTI_EnableRisingTrig_0_31(LL_EXTI_LINE_18);
LL_RCC_EnableIT_LSECSS();
/* ES0394, extended case of 2.2.2 */
if(!LL_RCC_IsActiveFlag_BORRST()) {
LL_RCC_LSE_EnableCSS();
}
/* Main PLL configuration and activation */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 8, LL_RCC_PLLR_DIV_2);
LL_RCC_PLL_Enable();
LL_RCC_PLL_EnableDomain_SYS();
while(LL_RCC_PLL_IsReady() != 1)
;
LL_RCC_PLLSAI1_ConfigDomain_48M(
LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 6, LL_RCC_PLLSAI1Q_DIV_2);
LL_RCC_PLLSAI1_ConfigDomain_ADC(
LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 6, LL_RCC_PLLSAI1R_DIV_2);
LL_RCC_PLLSAI1_Enable();
LL_RCC_PLLSAI1_EnableDomain_48M();
LL_RCC_PLLSAI1_EnableDomain_ADC();
while(LL_RCC_PLLSAI1_IsReady() != 1)
;
/* Sysclk activation on the main PLL */
/* Set CPU1 prescaler */
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
/* Set CPU2 prescaler, from this point we are not allowed to touch it. */
LL_C2_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_2);
/* Prepare Flash memory for work on 64MHz system clock */
LL_FLASH_SetLatency(LL_FLASH_LATENCY_3);
while(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_3)
;
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
;
/* Set AHB SHARED prescaler*/
LL_RCC_SetAHB4Prescaler(LL_RCC_SYSCLK_DIV_1);
/* Set APB1 prescaler*/
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
/* Set APB2 prescaler*/
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
/* Disable MSI */
LL_RCC_MSI_Disable();
while(LL_RCC_MSI_IsReady() != 0)
;
/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
LL_SetSystemCoreClock(CPU_CLOCK_PLL_HZ);
/* Update the time base */
LL_Init1msTick(SystemCoreClock);
LL_SYSTICK_EnableIT();
NVIC_SetPriority(
SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), TICK_INT_PRIORITY, 0));
NVIC_EnableIRQ(SysTick_IRQn);
LL_RCC_SetCLK48ClockSource(LL_RCC_CLK48_CLKSOURCE_PLLSAI1);
LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSI);
LL_RCC_SetSMPSPrescaler(LL_RCC_SMPS_DIV_1);
LL_RCC_SetRFWKPClockSource(LL_RCC_RFWKP_CLKSOURCE_LSE);
LL_RCC_SetADCClockSource(LL_RCC_ADC_CLKSOURCE_SYSCLK);
FURI_LOG_I(TAG, "Init OK");
}
void furi_hal_clock_switch_hse2hsi(void) {
LL_RCC_HSI_Enable();
while(!LL_RCC_HSI_IsReady())
;
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
furi_check(LL_RCC_GetSMPSClockSelection() == LL_RCC_SMPS_CLKSOURCE_HSI);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI)
;
LL_FLASH_SetLatency(LL_FLASH_LATENCY_0);
while(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_0)
;
}
void furi_hal_clock_switch_hsi2hse(void) {
#ifdef FURI_HAL_CLOCK_TRACK_STARTUP
uint32_t clock_start_time = DWT->CYCCNT;
#endif
LL_RCC_HSE_Enable();
while(!LL_RCC_HSE_IsReady())
;
LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
while(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_1)
;
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSE);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSE)
;
#ifdef FURI_HAL_CLOCK_TRACK_STARTUP
uint32_t total = DWT->CYCCNT - clock_start_time;
if(total > (20 * 0x148)) {
furi_crash("Slow HSE/PLL startup");
}
#endif
}
bool furi_hal_clock_switch_hse2pll(void) {
furi_check(LL_RCC_GetSysClkSource() == LL_RCC_SYS_CLKSOURCE_STATUS_HSE);
LL_RCC_PLL_Enable();
LL_RCC_PLLSAI1_Enable();
while(!LL_RCC_PLL_IsReady())
;
while(!LL_RCC_PLLSAI1_IsReady())
;
// This API returns garbage if stack version < 1.20.0
SHCI_C2_SetSystemClock(SET_SYSTEM_CLOCK_HSE_TO_PLL);
// So we'll check results by asking hardware directly
if(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) {
return false;
}
LL_SetSystemCoreClock(CPU_CLOCK_PLL_HZ);
SysTick->LOAD = (uint32_t)((SystemCoreClock / 1000) - 1UL);
return true;
}
bool furi_hal_clock_switch_pll2hse(void) {
furi_check(LL_RCC_GetSysClkSource() == LL_RCC_SYS_CLKSOURCE_STATUS_PLL);
LL_RCC_HSE_Enable();
while(!LL_RCC_HSE_IsReady())
;
// This API returns garbage if stack version < 1.20.0
SHCI_C2_SetSystemClock(SET_SYSTEM_CLOCK_PLL_ON_TO_HSE);
// So we'll check results by asking hardware directly
if(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSE) {
return false;
}
LL_SetSystemCoreClock(CPU_CLOCK_HSE_HZ);
SysTick->LOAD = (uint32_t)((SystemCoreClock / 1000) - 1UL);
return true;
}
void furi_hal_clock_suspend_tick(void) {
CLEAR_BIT(SysTick->CTRL, SysTick_CTRL_ENABLE_Msk);
}
void furi_hal_clock_resume_tick(void) {
SET_BIT(SysTick->CTRL, SysTick_CTRL_ENABLE_Msk);
}
void furi_hal_clock_mco_enable(FuriHalClockMcoSourceId source, FuriHalClockMcoDivisorId div) {
if(source == FuriHalClockMcoLse) {
LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_LSE, div);
} else if(source == FuriHalClockMcoSysclk) {
LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_SYSCLK, div);
} else {
LL_RCC_MSI_Enable();
while(LL_RCC_MSI_IsReady() != 1)
;
switch(source) {
case FuriHalClockMcoMsi100k:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_0);
break;
case FuriHalClockMcoMsi200k:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_1);
break;
case FuriHalClockMcoMsi400k:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_2);
break;
case FuriHalClockMcoMsi800k:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_3);
break;
case FuriHalClockMcoMsi1m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_4);
break;
case FuriHalClockMcoMsi2m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_5);
break;
case FuriHalClockMcoMsi4m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_6);
break;
case FuriHalClockMcoMsi8m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_7);
break;
case FuriHalClockMcoMsi16m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_8);
break;
case FuriHalClockMcoMsi24m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_9);
break;
case FuriHalClockMcoMsi32m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_10);
break;
case FuriHalClockMcoMsi48m:
LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_11);
break;
default:
break;
}
LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_MSI, div);
}
}
void furi_hal_clock_mco_disable(void) {
LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_NOCLOCK, FuriHalClockMcoDiv1);
LL_RCC_MSI_Disable();
while(LL_RCC_MSI_IsReady() != 0)
;
}