* arch/xtensa/src/esp32/esp32_spicache.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32_ESP32_SPICACHE_H
#define __ARCH_XTENSA_SRC_ESP32_ESP32_SPICACHE_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <nuttx/mtd/mtd.h>
#include "xtensa_attr.h"
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
* Public Function Prototypes
****************************************************************************/
* Name: spi_disable_cache
*
* Description:
* Disable cache for SPI FLASH on a CPU
*
* Input Parameters:
* - cpu: ID of CPU to disable cache
*
* Returned Value:
* None.
*
****************************************************************************/
void spi_disable_cache(int cpu);
* Name: spi_enable_cache
*
* Description:
* Enable cache for SPI FLASH on a CPU
*
* Input Parameters:
* - cpu: ID of CPU to enable cache
* - state: the cache reg state to be set
*
* Returned Value:
* None
*
****************************************************************************/
void spi_enable_cache(int cpu);
* Name: spi_flash_cache_enabled
*
* Description:
* Check at runtime if flash cache is enabled on both CPUs.
*
* Returned Value:
* True if both CPUs have flash cache enabled, false otherwise.
*
****************************************************************************/
bool spi_flash_cache_enabled(void);
#ifdef __cplusplus
}
#endif
#undef EXTERN
#endif
#endif