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/*
* Copyright 2021 NXP
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _FSL_MEMORY_H_
#define _FSL_MEMORY_H_
#include "fsl_common.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.memory"
#endif
/* The CM4 subsystem local TCM start address, refer to Reference Manual for detailed information */
#define FSL_MEM_M4_TCM_BEGIN 0x1FFE0000U
/* The CM4 subsystem local TCM end address, refer to Reference Manual for detailed information */
#define FSL_MEM_M4_TCM_END 0x2001FFFFU
#define FSL_MEM_M4_TCM_OFFSET 0x220000U
typedef enum _mem_direction
{
kMEMORY_Local2DMA = 0,
kMEMORY_DMA2Local,
} mem_direction_t;
/*******************************************************************************
* API
******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
/*!
* @brief Convert the memory map address.
*
* This function convert the address between system mapped address and native mapped address.
* There maybe offset between subsystem native address and system address for some memory,
* this funciton convert the address to different memory map.
* @param addr address need to be converted.
* @param direction convert direction.
* @return the converted address
*/
static inline uint32_t MEMORY_ConvertMemoryMapAddress(uint32_t addr, mem_direction_t direction)
{
uint32_t dest;
switch (direction)
{
case kMEMORY_Local2DMA:
{
if ((addr >= FSL_MEM_M4_TCM_BEGIN) && (addr <= FSL_MEM_M4_TCM_END))
{
dest = addr + FSL_MEM_M4_TCM_OFFSET;
}
else
{
dest = addr;
}
break;
}
case kMEMORY_DMA2Local:
{
if ((addr >= (FSL_MEM_M4_TCM_BEGIN + FSL_MEM_M4_TCM_OFFSET)) &&
(addr <= (FSL_MEM_M4_TCM_END + FSL_MEM_M4_TCM_OFFSET)))
{
dest = addr - FSL_MEM_M4_TCM_OFFSET;
}
else
{
dest = addr;
}
break;
}
default:
dest = addr;
break;
}
return dest;
}
#if defined(__cplusplus)
}
#endif /* __cplusplus */
#endif /* _FSL_MEMORY_H_ */
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