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[ARM] 3551/1: S3C24XX: PM code failes to compile with CONFIG_DCACHE_WRITETHROUGH

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Patch from Ben Dooks

If CONFIG_CPU_DCACHE_WRITETHOUGH is set, then the
S3C24XX PM code fails to compile, as there is no
need to flush the D-cache, the flush function
arm920_flush_kern_cache_all() is not compiled.

Fix the code to not use this if the config is set.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2006-06-18 16:21:51 +01:00 committed by Russell King
parent e2e5810f41
commit 4833acb2e1
2 changed files with 6 additions and 0 deletions
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4
arch/arm/mach-s3c2410/pm.c
View File

@ -58,7 +58,11 @@ unsigned long s3c_pm_flags;
/* cache functions from arch/arm/mm/proc-arm920.S */
#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
extern void arm920_flush_kern_cache_all(void);
#else
static void arm920_flush_kern_cache_all(void) { }
#endif
#define PFX "s3c24xx-pm: "

2
arch/arm/mach-s3c2410/sleep.S
View File

@ -66,7 +66,9 @@ ENTRY(s3c2410_cpu_suspend)
@@ flush the caches to ensure everything is back out to
@@ SDRAM before the core powers down
#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
bl arm920_flush_kern_cache_all
#endif
@@ prepare cpu to sleep