/*FUNCTION**********************************************************************
*
* Function Name : CLOCK_SYS_GetLpuartFreq
* Description : Gets the clock frequency for LPUART module.
* This function gets the clock frequency for LPUART moudle.
*
*END**************************************************************************/
uint32_t CLOCK_SYS_GetLpuartFreq(uint32_t instance)
{
clock_lpuart_src_t src;
uint32_t freq;
src = CLOCK_HAL_GetLpuartSrc(SIM, instance);
switch (src)
{
case kClockLpuartSrcPllFllSel:
freq = CLOCK_SYS_GetPllFllClockFreq();
break;
case kClockLpuartSrcOsc0erClk:
freq = CLOCK_SYS_GetOsc0ExternalRefClockFreq();
break;
case kClockLpuartSrcMcgIrClk:
freq = CLOCK_HAL_GetInternalRefClk(MCG);
break;
default:
freq = 0U;
break;
}
return freq;
}
/*FUNCTION*-------------------------------------------------------------------
*
* Function Name : usb_otg_soc_clock_config
* Returned Value : none
* Comments :
* This function sets the selection of the high frequency clock for various USB clock options
*
*END*----------------------------------------------------------------------*/
static usb_status usb_otg_soc_clock_config(uint8_t controller_id, usb_otg_clock_sel_t setting)
{
usb_status ret = USB_OK;
if (USB_CONTROLLER_KHCI_0 == controller_id)
{
uint32_t freq;
clock_usbfs_src_t src;
uint8_t instance = controller_id - USB_CONTROLLER_KHCI_0;
switch(setting)
{
case USB_OTG_EXTERNAL_CLKIN:
CLOCK_SYS_DisableUsbfsClock(instance);
ret = USBERR_BAD_STATUS;
break;
case USB_OTG_IRC_CLK48M:
CLOCK_SYS_DisableUsbfsClock(instance);
/* USB clock divider */
CLOCK_SYS_SetUsbfsDiv(instance, 0U, 0U);
/* PLL/FLL selected as CLK source */
CLOCK_SYS_SetUsbfsSrc(instance, kClockUsbfsSrcPllFllSel);
CLOCK_SYS_SetPllfllSel (kClockPllFllSelIrc48M);
/* USB Clock Gating */
CLOCK_SYS_EnableUsbfsClock(instance);
/* Enable IRC 48MHz for USB module */
USB_CLK_RECOVER_IRC_EN = 0x03;
break;
case USB_OTG_PLLFLL_CLK:
CLOCK_SYS_DisableUsbfsClock(instance);
/* PLL/FLL selected as CLK source */
CLOCK_SYS_SetPllfllSel (kClockPllFllSelPll);
CLOCK_SYS_SetUsbfsSrc(instance, kClockUsbfsSrcPllFllSel);
/* USB clock divider */
src = CLOCK_SYS_GetUsbfsSrc(instance);
switch(src)
{
case kClockUsbfsSrcExt:
ret = USBERR_BAD_STATUS;
break;
case kClockUsbfsSrcPllFllSel:
freq = CLOCK_SYS_GetPllFllClockFreq();
switch(freq)
{
case 120000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 4, 1);
break;
case 96000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 1, 0);
break;
case 72000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 2, 1);
break;
case 48000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 0, 0);
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
/* Confirm the USB souce frequency is 48MHz */
if (48000000U != CLOCK_SYS_GetUsbfsFreq(instance))
{
ret = USBERR_BAD_STATUS;
}
/* USB Clock Gating */
CLOCK_SYS_EnableUsbfsClock(instance);
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
}
else
{
ret = USBERR_BAD_STATUS;
}
return ret;
}
/*FUNCTION*-------------------------------------------------------------------
*
* Function Name : usb_dev_soc_init
* Returned Value : USB status
* Comments :
* This function performs BSP-specific I/O initialization related to USB
*
*END*----------------------------------------------------------------------*/
usb_status usb_dev_soc_init
(
uint8_t controller_id
)
{
usb_status ret = USB_OK;
MPU_CESR=0;
if (USB_CONTROLLER_KHCI_0 == controller_id)
{
#if !USBCFG_DEV_USE_IRC48M
uint32_t freq;
clock_usbfs_src_t src;
#endif
uint8_t instance = controller_id - USB_CONTROLLER_KHCI_0;
uint32_t base_address = soc_get_usb_base_address(controller_id);
#if USBCFG_DEV_USE_IRC48M
/* USB clock divider */
CLOCK_SYS_SetUsbfsDiv(instance, 0U, 0U);
/* PLL/FLL selected as CLK source */
CLOCK_SYS_SetUsbfsSrc(instance, kClockUsbfsSrcPllFllSel);
CLOCK_SYS_SetPllfllSel(kClockPllFllSelIrc48M);
/* USB Clock Gating */
CLOCK_SYS_EnableUsbfsClock(instance);
/* Enable IRC 48MHz for USB module */
usb_hal_khci_ungate_irc48m(base_address);
usb_hal_khci_enable_irc48m_recovery_block(base_address);
#else
/* PLL/FLL selected as CLK source */
CLOCK_SYS_SetPllfllSel(kClockPllFllSelPll);
CLOCK_SYS_SetUsbfsSrc(instance, kClockUsbfsSrcPllFllSel);
/* USB clock divider */
src = CLOCK_SYS_GetUsbfsSrc(instance);
switch(src)
{
case kClockUsbfsSrcExt:
ret = USBERR_BAD_STATUS;
break;
case kClockUsbfsSrcPllFllSel:
freq = CLOCK_SYS_GetPllFllClockFreq();
switch(freq)
{
case 120000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 4, 1);
break;
case 96000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 1, 0);
break;
case 72000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 2, 1);
break;
case 48000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 0, 0);
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
/* Confirm the USB souce frequency is 48MHz */
if(48000000U != CLOCK_SYS_GetUsbfsFreq(instance))
{
ret = USBERR_BAD_STATUS;
}
/* USB Clock Gating */
CLOCK_SYS_EnableUsbfsClock(instance);
#endif
/* Configure enable USB regulator for device */
SIM_HAL_SetUsbVoltRegulatorWriteCmd((SIM_Type*)(SIM_BASE), TRUE);
SIM_HAL_SetUsbVoltRegulatorCmd((SIM_Type*)(SIM_BASE), TRUE);
}
else
{
ret = USBERR_BAD_STATUS; //unknown controller
}
return ret;
}
/*FUNCTION*-------------------------------------------------------------------
*
* Function Name : usb_host_soc_init
* Returned Value : USB status
* Comments :
* This function performs BSP-specific I/O initialization related to USB
*
*END*----------------------------------------------------------------------*/
usb_status usb_host_soc_init
(
uint8_t controller_id
)
{
usb_status ret = 0;
if (USB_CONTROLLER_KHCI_0 == controller_id)
{
uint32_t freq;
clock_usbfs_src_t src;
uint8_t instance = controller_id - USB_CONTROLLER_KHCI_0;
uint32_t base_address = soc_get_usb_base_address(controller_id);
/* PLL/FLL selected as CLK source */
CLOCK_SYS_SetPllfllSel(kClockPllFllSelPll);
CLOCK_SYS_SetUsbfsSrc(instance, kClockUsbfsSrcPllFllSel);
/* USB clock divider */
src = CLOCK_SYS_GetUsbfsSrc(instance);
switch(src)
{
case kClockUsbfsSrcExt:
ret = USBERR_BAD_STATUS;
break;
case kClockUsbfsSrcPllFllSel:
freq = CLOCK_SYS_GetPllFllClockFreq();
switch(freq)
{
case 120000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 4, 1);
break;
case 96000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 1, 0);
break;
case 72000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 2, 1);
break;
case 48000000U:
CLOCK_SYS_SetUsbfsDiv(instance, 0, 0);
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
break;
default:
ret = USBERR_BAD_STATUS;
break;
}
/* Confirm the USB souce frequency is 48MHz */
if(48000000U != CLOCK_SYS_GetUsbfsFreq(instance))
{
ret = USBERR_BAD_STATUS;
}
/* USB Clock Gating */
CLOCK_SYS_EnableUsbfsClock(instance);
}
else
{
ret = USBERR_BAD_STATUS; //unknown controller
}
return ret;
}
