|
@@ -0,0 +1,80 @@
|
|
|
+/** @Soc.c
|
|
|
+ SoC specific Library containg functions to initialize various SoC components
|
|
|
+
|
|
|
+ Copyright 2018-2020 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
|
|
|
+ )
|
|
|
+{
|
|
|
+ LX2160A_DEVICE_CONFIG *Dcfg;
|
|
|
+ UINT32 RcwSr;
|
|
|
+ UINT64 ReturnValue;
|
|
|
+
|
|
|
+ ReturnValue = 0;
|
|
|
+ Dcfg = (LX2160A_DEVICE_CONFIG *)LX2160A_DCFG_ADDRESS;
|
|
|
+
|
|
|
+ switch (ClockType) {
|
|
|
+ case NXP_UART_CLOCK:
|
|
|
+ RcwSr = DcfgRead32 ((UINTN)&Dcfg->RcwSr[0]);
|
|
|
+ ReturnValue = (BaseClock * SYS_PLL_RAT (RcwSr)) >> 3;
|
|
|
+ break;
|
|
|
+ case NXP_I2C_CLOCK:
|
|
|
+ RcwSr = DcfgRead32 ((UINTN)&Dcfg->RcwSr[0]);
|
|
|
+ ReturnValue = (BaseClock * SYS_PLL_RAT (RcwSr)) >> 4;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ return ReturnValue;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Function to initialize SoC specific constructs
|
|
|
+ **/
|
|
|
+VOID
|
|
|
+SocInit (
|
|
|
+ VOID
|
|
|
+ )
|
|
|
+{
|
|
|
+ ChassisInit ();
|
|
|
+
|
|
|
+ return;
|
|
|
+}
|