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076cd49ad1
Commit 2f3427c added noop cache functions implementation for arm926ejs
to fix compilation of drivers depending on these functions (DaVinci
EMAC in particular).
Unfortunately, the bug was introduced: noop implementation calls
dcache_disable which calls flush_dcache_all which in turn calls
dcache_disable thus creating an infinite loop.
This patch removes noop implementation for flush_dcache_all, we already
have default one in arch/arm/lib/cache.c and it should be used instead.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Tested-by: Matthias Weisser <weisserm@arcor.de>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
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* (C) Copyright 2011
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* Ilya Yanok, EmCraft Systems
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <linux/types.h>
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#include <common.h>
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#ifndef CONFIG_SYS_DCACHE_OFF
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static inline void dcache_noop(void)
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{
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if (dcache_status()) {
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puts("WARNING: cache operations are not implemented!\n"
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"WARNING: disabling D-Cache now, you can re-enable it"
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"later with 'dcache on' command\n");
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dcache_disable();
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}
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}
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void invalidate_dcache_all(void)
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{
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dcache_noop();
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}
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void invalidate_dcache_range(unsigned long start, unsigned long stop)
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{
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dcache_noop();
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}
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void flush_dcache_range(unsigned long start, unsigned long stop)
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{
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dcache_noop();
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}
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#else /* #ifndef CONFIG_SYS_DCACHE_OFF */
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void invalidate_dcache_all(void)
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{
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}
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void flush_dcache_all(void)
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{
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}
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void invalidate_dcache_range(unsigned long start, unsigned long stop)
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{
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}
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void flush_dcache_range(unsigned long start, unsigned long stop)
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{
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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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}
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#endif /* #ifndef CONFIG_SYS_DCACHE_OFF */
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