fsl_memory.h

/*
 * 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
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_ */