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/*
* Copyright (c) 2024, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbd_core.h"
#include "fsl_common.h"
/*! @brief USB controller ID */
typedef enum _usb_controller_index {
kUSB_ControllerKhci0 = 0U, /*!< KHCI 0U */
kUSB_ControllerKhci1 = 1U, /*!< KHCI 1U, Currently, there are no platforms which have two KHCI IPs, this is reserved
to be used in the future. */
kUSB_ControllerEhci0 = 2U, /*!< EHCI 0U */
kUSB_ControllerEhci1 = 3U, /*!< EHCI 1U */
} usb_controller_index_t;
#define USB_DEVICE_CONFIG_EHCI 1
/* USB PHY condfiguration */
#define BOARD_USB_PHY_D_CAL (0x04U)
#define BOARD_USB_PHY_TXCAL45DP (0x07U)
#define BOARD_USB_PHY_TXCAL45DM (0x07U)
#define BOARD_XTAL0_CLK_HZ 24000000U /*!< Board xtal0 frequency in Hz */
#if ((defined FSL_FEATURE_SOC_USBPHY_COUNT) && (FSL_FEATURE_SOC_USBPHY_COUNT > 0U))
#include "usb_phy.h"
#endif
#if (defined(USB_DEVICE_CONFIG_EHCI) && (USB_DEVICE_CONFIG_EHCI > 0U))
void USB1_HS_IRQHandler(void)
{
extern void USBD_IRQHandler(uint8_t busid);
USBD_IRQHandler(0);
}
#endif
void USB_ClockInit(void)
{
#if defined(USB_DEVICE_CONFIG_EHCI) && (USB_DEVICE_CONFIG_EHCI > 0U)
usb_phy_config_struct_t phyConfig = {
BOARD_USB_PHY_D_CAL,
BOARD_USB_PHY_TXCAL45DP,
BOARD_USB_PHY_TXCAL45DM,
};
#endif
#if defined(USB_DEVICE_CONFIG_EHCI) && (USB_DEVICE_CONFIG_EHCI > 0U)
SPC0->ACTIVE_VDELAY = 0x0500;
/* Change the power DCDC to 1.8v (By deafult, DCDC is 1.8V), CORELDO to 1.1v (By deafult, CORELDO is 1.0V) */
SPC0->ACTIVE_CFG &= ~SPC_ACTIVE_CFG_CORELDO_VDD_DS_MASK;
SPC0->ACTIVE_CFG |= SPC_ACTIVE_CFG_DCDC_VDD_LVL(0x3) | SPC_ACTIVE_CFG_CORELDO_VDD_LVL(0x3) |
SPC_ACTIVE_CFG_SYSLDO_VDD_DS_MASK | SPC_ACTIVE_CFG_DCDC_VDD_DS(0x2u);
/* Wait until it is done */
while (SPC0->SC & SPC_SC_BUSY_MASK)
;
if (0u == (SCG0->LDOCSR & SCG_LDOCSR_LDOEN_MASK)) {
SCG0->TRIM_LOCK = 0x5a5a0001U;
SCG0->LDOCSR |= SCG_LDOCSR_LDOEN_MASK;
/* wait LDO ready */
while (0U == (SCG0->LDOCSR & SCG_LDOCSR_VOUT_OK_MASK))
;
}
SYSCON->AHBCLKCTRLSET[2] |= SYSCON_AHBCLKCTRL2_USB_HS_MASK | SYSCON_AHBCLKCTRL2_USB_HS_PHY_MASK;
SCG0->SOSCCFG &= ~(SCG_SOSCCFG_RANGE_MASK | SCG_SOSCCFG_EREFS_MASK);
/* xtal = 20 ~ 30MHz */
SCG0->SOSCCFG = (1U << SCG_SOSCCFG_RANGE_SHIFT) | (1U << SCG_SOSCCFG_EREFS_SHIFT);
SCG0->SOSCCSR |= SCG_SOSCCSR_SOSCEN_MASK;
while (1) {
if (SCG0->SOSCCSR & SCG_SOSCCSR_SOSCVLD_MASK) {
break;
}
}
SYSCON->CLOCK_CTRL |= SYSCON_CLOCK_CTRL_CLKIN_ENA_MASK | SYSCON_CLOCK_CTRL_CLKIN_ENA_FM_USBH_LPT_MASK;
CLOCK_EnableClock(kCLOCK_UsbHs);
CLOCK_EnableClock(kCLOCK_UsbHsPhy);
CLOCK_EnableUsbhsPhyPllClock(kCLOCK_Usbphy480M, 24000000U);
CLOCK_EnableUsbhsClock();
USB_EhciPhyInit(kUSB_ControllerEhci0, BOARD_XTAL0_CLK_HZ, &phyConfig);
#endif
#if defined(USB_DEVICE_CONFIG_KHCI) && (USB_DEVICE_CONFIG_KHCI > 0U)
CLOCK_AttachClk(kCLK_48M_to_USB0);
CLOCK_EnableClock(kCLOCK_Usb0Ram);
CLOCK_EnableClock(kCLOCK_Usb0Fs);
CLOCK_EnableUsbfsClock();
#endif
}
void usb_dc_low_level_init(uint8_t busid)
{
USB_ClockInit();
/* Install isr, set priority, and enable IRQ. */
NVIC_SetPriority((IRQn_Type)USB1_HS_IRQn, 3);
EnableIRQ((IRQn_Type)USB1_HS_IRQn);
}
void usb_dc_low_level_deinit(uint8_t busid)
{
DisableIRQ((IRQn_Type)USB1_HS_IRQn);
}
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