u-boot/arch/riscv/cpu/ax25/cpu.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Andes Technology Corporation
* Rick Chen, Andes Technology Corporation <rick@andestech.com>
*/
/* CPU specific code */
#include <common.h>
#include <cpu_func.h>
#include <irq_func.h>
#include <asm/cache.h>
/*
* cleanup_before_linux() is called just before we call linux
* it prepares the processor for linux
*
* we disable interrupt and caches.
*/
int cleanup_before_linux(void)
{
disable_interrupts();
/* turn off I/D-cache */
cache_flush();
icache_disable();
dcache_disable();
return 0;
}