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drivers: usb: Add STM32N6 USB support

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Enable clock and power for the OTG HS peripheral
of the STM32N6x serie

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>
This commit is contained in:
IBEN EL HADJ MESSAOUD Marwa 2025-01-30 16:47:03 +01:00 • committed by Benjamin Cabé
commit 2b56eb6393
1 changed files with 15 additions and 1 deletions
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16
drivers/usb/device/usb_dc_stm32.c
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@ -67,9 +67,11 @@ LOG_MODULE_REGISTER(usb_dc_stm32);
static const struct stm32_pclken pclken[] = STM32_DT_INST_CLOCKS(0); static const struct stm32_pclken pclken[] = STM32_DT_INST_CLOCKS(0);
#if !DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
PINCTRL_DT_INST_DEFINE(0); PINCTRL_DT_INST_DEFINE(0);
static const struct pinctrl_dev_config *usb_pcfg = static const struct pinctrl_dev_config *usb_pcfg =
PINCTRL_DT_INST_DEV_CONFIG_GET(0); PINCTRL_DT_INST_DEV_CONFIG_GET(0);
#endif
#define USB_OTG_HS_EMB_PHYC (DT_HAS_COMPAT_STATUS_OKAY(st_stm32_usbphyc) && \ #define USB_OTG_HS_EMB_PHYC (DT_HAS_COMPAT_STATUS_OKAY(st_stm32_usbphyc) && \
DT_HAS_COMPAT_STATUS_OKAY(st_stm32_otghs)) DT_HAS_COMPAT_STATUS_OKAY(st_stm32_otghs))
@ -339,6 +341,14 @@ static int usb_dc_stm32_phy_specific_clock_enable(const struct device *const clk
* with LL_PWR_EnableVDDUSB function (higher case) * with LL_PWR_EnableVDDUSB function (higher case)
*/ */
LL_PWR_EnableVDDUSB(); LL_PWR_EnableVDDUSB();
#elif DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
/* Enable Vdd USB voltage monitoring */
LL_PWR_EnableVddUSBMonitoring();
while (__HAL_PWR_GET_FLAG(PWR_FLAG_USB33RDY)) {
/* Wait for VDD33USB ready */
}
/* Enable VDDUSB */
LL_PWR_EnableVddUSB();
#endif #endif
if (DT_INST_NUM_CLOCKS(0) > 1) { if (DT_INST_NUM_CLOCKS(0) > 1) {
@ -417,13 +427,15 @@ static int usb_dc_stm32_clock_enable(void)
/* Both OTG HS and USBPHY sleep clock MUST be disabled here at the same time */ /* Both OTG HS and USBPHY sleep clock MUST be disabled here at the same time */
LL_AHB2_GRP1_DisableClockStopSleep(LL_AHB2_GRP1_PERIPH_OTG_HS || LL_AHB2_GRP1_DisableClockStopSleep(LL_AHB2_GRP1_PERIPH_OTG_HS ||
LL_AHB2_GRP1_PERIPH_USBPHY); LL_AHB2_GRP1_PERIPH_USBPHY);
#else #elif !DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
LL_AHB1_GRP1_DisableClockLowPower(LL_AHB1_GRP1_PERIPH_OTGHSULPI); LL_AHB1_GRP1_DisableClockLowPower(LL_AHB1_GRP1_PERIPH_OTGHSULPI);
#endif #endif
#if USB_OTG_HS_EMB_PHYC #if USB_OTG_HS_EMB_PHYC
#if !DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_OTGPHYC); LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_OTGPHYC);
#endif #endif
#endif
#endif /* USB_OTG_HS_ULPI_PHY */ #endif /* USB_OTG_HS_ULPI_PHY */
return 0; return 0;
@ -511,12 +523,14 @@ static int usb_dc_stm32_init(void)
} }
#endif #endif
#if !DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_otghs)
LOG_DBG("Pinctrl signals configuration"); LOG_DBG("Pinctrl signals configuration");
ret = pinctrl_apply_state(usb_pcfg, PINCTRL_STATE_DEFAULT); ret = pinctrl_apply_state(usb_pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) { if (ret < 0) {
LOG_ERR("USB pinctrl setup failed (%d)", ret); LOG_ERR("USB pinctrl setup failed (%d)", ret);
return ret; return ret;
} }
#endif
LOG_DBG("HAL_PCD_Init"); LOG_DBG("HAL_PCD_Init");
status = HAL_PCD_Init(&usb_dc_stm32_state.pcd); status = HAL_PCD_Init(&usb_dc_stm32_state.pcd);