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feat(usb/device): Add USB device support to ESP32-P4 v3

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This commit is contained in:
Tomas Rezucha
2025-11-03 17:27:33 +08:00
committed by BOT
parent d06f5bf78a
commit 4e21392215
2 changed files with 16 additions and 140 deletions
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components/usb/usb_phy.c
+16 -1
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@@ -145,7 +145,22 @@ esp_err_t usb_phy_otg_set_mode(usb_phy_handle_t handle, usb_otg_mode_t mode)
// USB-DWC2.0 <-> UTMI PHY
// USB-DWC1.1 <-> FSLS PHY
if (handle->target == USB_PHY_TARGET_UTMI) {
return ESP_OK; // No need to configure anything for UTMI PHY
// ESP32-P4 v3 changed connection between USB-OTG peripheral and UTMI PHY.
// On v3 the 15k pulldown resistors on D+/D- are no longer controlled by USB-OTG,
// but must be controlled directly by this software driver.
#if CONFIG_IDF_TARGET_ESP32P4 && !CONFIG_ESP32P4_SELECTS_REV_LESS_V3
#include "soc/lp_system_struct.h"
if (mode == USB_OTG_MODE_HOST) {
// Host must connect 15k pulldown resistors on D+ / D-
LP_SYS.hp_usb_otghs_phy_ctrl.hp_utmiotg_dppulldown = 1;
LP_SYS.hp_usb_otghs_phy_ctrl.hp_utmiotg_dmpulldown = 1;
} else {
// Device must not connect any pulldown resistors on D+ / D-
LP_SYS.hp_usb_otghs_phy_ctrl.hp_utmiotg_dppulldown = 0;
LP_SYS.hp_usb_otghs_phy_ctrl.hp_utmiotg_dmpulldown = 0;
}
#endif // !CONFIG_ESP32P4_SELECTS_REV_LESS_V3
return ESP_OK;
}
const usb_otg_signal_conn_t *otg_sig = usb_dwc_info.controllers[otg11_index].otg_signals;