/** @file
|
*
|
* Copyright 2020 NXP
|
*
|
* SPDX-License-Identifier: BSD-2-Clause-Patent
|
*
|
**/
|
|
#ifndef NXP_PLATFORM_PPI_H__
|
#define NXP_PLATFORM_PPI_H__
|
|
#include <Uefi.h>
|
|
typedef enum _NXP_IP_CLOCK {
|
NXP_CORE_CLOCK,
|
NXP_I2C_CLOCK,
|
NXP_SYSTEM_CLOCK,
|
NXP_UART_CLOCK
|
} NXP_IP_CLOCK;
|
|
/**
|
Get the clocks supplied by Platform(Board) to NXP Layerscape SOC IPs
|
|
@param[in] ClockType Variable of Type NXP_IP_CLOCK. Indicates which IP clock
|
is to be retrieved.
|
@param[in] ... 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.
|
**/
|
typedef
|
UINT64
|
(EFIAPI * NXP_PLATFORM_GET_CLOCK)(
|
IN NXP_IP_CLOCK ClockType,
|
...
|
);
|
|
typedef struct {
|
NXP_PLATFORM_GET_CLOCK PlatformGetClock;
|
} NXP_PLATFORM_GET_CLOCK_PPI;
|
|
extern NXP_PLATFORM_GET_CLOCK_PPI gPlatformGetClockPpi;
|
|
#endif // NXP_PLATFORM_PPI_H__
|