/** @Soc.c
|
SoC specific Library containg functions to initialize various SoC components
|
|
Copyright 2017-2020 NXP
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
#include <Base.h>
|
#include <Library/ChassisLib.h>
|
#include <Library/DebugLib.h>
|
#include <Library/SocLib.h>
|
#include <Soc.h>
|
|
/**
|
Return the input clock frequency to an IP Module.
|
This function reads the RCW bits and calculates the PLL multiplier/divider
|
values to be applied to various IP modules.
|
If a module is disabled or doesn't exist on platform, then return zero.
|
|
@param[in] BaseClock Base clock to which PLL multiplier/divider values is
|
to be applied.
|
@param[in] ClockType Variable of Type NXP_IP_CLOCK. Indicates which IP clock
|
is to be retrieved.
|
@param[in] Args Variable argument list which is parsed based on
|
ClockType. e.g. if the ClockType is NXP_I2C_CLOCK, then
|
the second argument will be interpreted as controller
|
number. e.g. if there are four i2c controllers in SOC,
|
then this value can be 0, 1, 2, 3
|
e.g. if ClockType is NXP_CORE_CLOCK, then second
|
argument is interpreted as cluster number and third
|
argument is interpreted as core number (within the
|
cluster)
|
|
@return Actual Clock Frequency. Return value 0 should be
|
interpreted as clock not being provided to IP.
|
**/
|
UINT64
|
SocGetClock (
|
IN UINT64 BaseClock,
|
IN NXP_IP_CLOCK ClockType,
|
IN VA_LIST Args
|
)
|
{
|
LS1043A_DEVICE_CONFIG *Dcfg;
|
UINT32 RcwSr;
|
UINT64 ReturnValue;
|
|
ReturnValue = 0;
|
Dcfg = (LS1043A_DEVICE_CONFIG *)LS1043A_DCFG_ADDRESS;
|
|
switch (ClockType) {
|
case NXP_UART_CLOCK:
|
case NXP_I2C_CLOCK:
|
RcwSr = DcfgRead32 ((UINTN)&Dcfg->RcwSr[0]);
|
ReturnValue = BaseClock * SYS_PLL_RAT (RcwSr);
|
break;
|
default:
|
break;
|
}
|
|
return ReturnValue;
|
}
|
|
/**
|
Function to get SoC's System Version Register(SVR)
|
**/
|
UINT32
|
SocGetSvr (
|
VOID
|
)
|
{
|
LS1043A_DEVICE_CONFIG *DeviceConfig;
|
|
DeviceConfig = (LS1043A_DEVICE_CONFIG *)LS1043A_DCFG_ADDRESS;
|
return DcfgRead32 ((UINTN)&DeviceConfig->Svr);
|
}
|
|
/**
|
Function to initialize SoC specific constructs
|
**/
|
VOID
|
SocInit (
|
VOID
|
)
|
{
|
ChassisInit ();
|
|
return;
|
}
|