mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
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* Copyright (C) 2009, Wind River Systems Inc
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* Implemented by fredrik.markstrom@gmail.com and ivarholmqvist@gmail.com
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*/
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#include <common.h>
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#include <asm/cache.h>
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DECLARE_GLOBAL_DATA_PTR;
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static void __flush_dcache(unsigned long start, unsigned long end)
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{
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unsigned long addr;
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start &= ~(gd->arch.dcache_line_size - 1);
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end += (gd->arch.dcache_line_size - 1);
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end &= ~(gd->arch.dcache_line_size - 1);
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for (addr = start; addr < end; addr += gd->arch.dcache_line_size) {
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__asm__ __volatile__ (" flushda 0(%0)\n"
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: /* Outputs */
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: /* Inputs */ "r"(addr)
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/* : No clobber */);
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}
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}
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static void __flush_dcache_all(unsigned long start, unsigned long end)
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{
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unsigned long addr;
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start &= ~(gd->arch.dcache_line_size - 1);
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end += (gd->arch.dcache_line_size - 1);
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end &= ~(gd->arch.dcache_line_size - 1);
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if (end > start + gd->arch.dcache_size)
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end = start + gd->arch.dcache_size;
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for (addr = start; addr < end; addr += gd->arch.dcache_line_size) {
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__asm__ __volatile__ (" flushd 0(%0)\n"
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: /* Outputs */
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: /* Inputs */ "r"(addr)
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/* : No clobber */);
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}
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}
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static void __invalidate_dcache(unsigned long start, unsigned long end)
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{
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unsigned long addr;
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start &= ~(gd->arch.dcache_line_size - 1);
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end += (gd->arch.dcache_line_size - 1);
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end &= ~(gd->arch.dcache_line_size - 1);
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for (addr = start; addr < end; addr += gd->arch.dcache_line_size) {
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__asm__ __volatile__ (" initda 0(%0)\n"
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: /* Outputs */
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: /* Inputs */ "r"(addr)
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/* : No clobber */);
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}
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}
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static void __flush_icache(unsigned long start, unsigned long end)
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{
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unsigned long addr;
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start &= ~(gd->arch.icache_line_size - 1);
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end += (gd->arch.icache_line_size - 1);
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end &= ~(gd->arch.icache_line_size - 1);
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if (end > start + gd->arch.icache_size)
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end = start + gd->arch.icache_size;
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for (addr = start; addr < end; addr += gd->arch.icache_line_size) {
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__asm__ __volatile__ (" flushi %0\n"
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: /* Outputs */
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: /* Inputs */ "r"(addr)
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/* : No clobber */);
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}
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__asm__ __volatile(" flushp\n");
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}
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void flush_dcache_all(void)
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{
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__flush_dcache_all(0, gd->arch.dcache_size);
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__flush_icache(0, gd->arch.icache_size);
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}
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void flush_dcache_range(unsigned long start, unsigned long end)
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{
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if (gd->arch.has_initda)
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__flush_dcache(start, end);
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else
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__flush_dcache_all(start, end);
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}
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void flush_cache(unsigned long start, unsigned long size)
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{
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if (gd->arch.has_initda)
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__flush_dcache(start, start + size);
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else
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__flush_dcache_all(start, start + size);
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__flush_icache(start, start + size);
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}
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void invalidate_dcache_range(unsigned long start, unsigned long end)
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{
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if (gd->arch.has_initda)
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__invalidate_dcache(start, end);
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else
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__flush_dcache_all(start, end);
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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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flush_dcache_all();
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}
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void dcache_disable(void)
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{
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flush_dcache_all();
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}
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