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https://github.com/u-boot/u-boot.git
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ec1c6cfb1c
For armv8 we are adding proper page permissions for the relocated U-Boot binary. Add a weak function that can be used across architectures to change the page permissions Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on AML-S905X-CC Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008 - 2013 Tensilica Inc.
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* (C) Copyright 2014 - 2016 Cadence Design Systems Inc.
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*/
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#include <cpu_func.h>
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#include <asm/cache.h>
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#include <linux/errno.h>
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/*
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* We currently run always with caches enabled when running from memory.
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* Xtensa version D or later will support changing cache behavior, so
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* we could implement it if necessary.
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*/
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int dcache_status(void)
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{
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return 1;
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}
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void dcache_enable(void)
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{
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}
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void dcache_disable(void)
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{
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}
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void flush_cache(ulong start_addr, ulong size)
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{
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__flush_invalidate_dcache_range(start_addr, size);
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__invalidate_icache_range(start_addr, size);
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}
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void flush_dcache_all(void)
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{
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__flush_dcache_all();
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__invalidate_icache_all();
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}
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void flush_dcache_range(ulong start_addr, ulong end_addr)
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{
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__flush_invalidate_dcache_range(start_addr, end_addr - start_addr);
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}
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void invalidate_dcache_range(ulong start, ulong stop)
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{
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__invalidate_dcache_range(start, stop - start);
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}
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void invalidate_dcache_all(void)
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{
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__invalidate_dcache_all();
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}
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void invalidate_icache_all(void)
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{
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__invalidate_icache_all();
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}
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int __weak pgprot_set_attrs(phys_addr_t addr, size_t size, enum pgprot_attrs perm)
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{
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return -ENOSYS;
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}
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