upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/arch/xtensa/lib/cache.c

60 lines
1.1 KiB

/*
* (C) Copyright 2008 - 2013 Tensilica Inc.
* (C) Copyright 2014 - 2016 Cadence Design Systems Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/cache.h>
/*
* We currently run always with caches enabled when running from memory.
* Xtensa version D or later will support changing cache behavior, so
* we could implement it if necessary.
*/
int dcache_status(void)
{
return 1;
}
void dcache_enable(void)
{
}
void dcache_disable(void)
{
}
void flush_cache(ulong start_addr, ulong size)
{
__flush_invalidate_dcache_range(start_addr, size);
__invalidate_icache_range(start_addr, size);
}
void flush_dcache_all(void)
{
__flush_dcache_all();
__invalidate_icache_all();
}
void flush_dcache_range(ulong start_addr, ulong end_addr)
{
__flush_invalidate_dcache_range(start_addr, end_addr - start_addr);
}
void invalidate_dcache_range(ulong start, ulong stop)
{
__invalidate_dcache_range(start, stop - start);
}
void invalidate_dcache_all(void)
{
__invalidate_dcache_all();
}
void invalidate_icache_all(void)
{
__invalidate_icache_all();
}