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Disable ULPI clock during sleep on stm32f7 when using internal phy

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Alex Voinea 2024-01-10 10:27:21 +01:00
parent ae364b1460
commit 3bf6826451
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GPG Key ID: 37EDFD565CB33BAD
1 changed files with 8 additions and 1 deletions
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9
src/portable/synopsys/dwc2/dwc2_stm32.h
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@ -149,7 +149,7 @@ static inline void dwc2_phy_init(dwc2_regs_t* dwc2, uint8_t hs_phy_type) {
// https://community.st.com/t5/stm32cubemx-mcus/why-stm32h743-usb-fs-doesn-t-work-if-freertos-tickless-idle/m-p/349480#M18867 // https://community.st.com/t5/stm32cubemx-mcus/why-stm32h743-usb-fs-doesn-t-work-if-freertos-tickless-idle/m-p/349480#M18867
// H7 running on full-speed phy need to disable ULPI clock in sleep mode. // H7 running on full-speed phy need to disable ULPI clock in sleep mode.
// Otherwise, USB won't work when mcu executing WFI/WFE instruction i.e tick-less RTOS. // Otherwise, USB won't work when mcu executing WFI/WFE instruction i.e tick-less RTOS.
// Note: there may be other family that is affected by this, but only H7 is tested so far // Note: there may be other family that is affected by this, but only H7 and F7 is tested so far
#if defined(USB_OTG_FS_PERIPH_BASE) && defined(RCC_AHB1LPENR_USB2OTGFSULPILPEN) #if defined(USB_OTG_FS_PERIPH_BASE) && defined(RCC_AHB1LPENR_USB2OTGFSULPILPEN)
if ( USB_OTG_FS_PERIPH_BASE == (uint32_t) dwc2 ) { if ( USB_OTG_FS_PERIPH_BASE == (uint32_t) dwc2 ) {
RCC->AHB1LPENR &= ~RCC_AHB1LPENR_USB2OTGFSULPILPEN; RCC->AHB1LPENR &= ~RCC_AHB1LPENR_USB2OTGFSULPILPEN;
@ -161,6 +161,13 @@ static inline void dwc2_phy_init(dwc2_regs_t* dwc2, uint8_t hs_phy_type) {
RCC->AHB1LPENR &= ~RCC_AHB1LPENR_USB1OTGHSULPILPEN; RCC->AHB1LPENR &= ~RCC_AHB1LPENR_USB1OTGHSULPILPEN;
} }
#endif #endif
#if defined(USB_OTG_HS_PERIPH_BASE) && defined(RCC_AHB1LPENR_OTGHSULPILPEN)
if ( USB_OTG_HS_PERIPH_BASE == (uint32_t) dwc2 ) {
RCC->AHB1LPENR &= ~RCC_AHB1LPENR_OTGHSULPILPEN;
}
#endif
} else { } else {
#if CFG_TUSB_MCU != OPT_MCU_STM32U5 #if CFG_TUSB_MCU != OPT_MCU_STM32U5
// Disable FS PHY, TODO on U5A5 (dwc2 4.11a) 16th bit is 'Host CDP behavior enable' // Disable FS PHY, TODO on U5A5 (dwc2 4.11a) 16th bit is 'Host CDP behavior enable'