From: Yuri Tikhonov yur@emcraft.com
Some boards (e.g. lwmon5) need rather a frequent watch-dog kicking. Since the time it takes for the flush_cache() function to complete its job depends on the size of data being flushed, one may encounter watch-dog resets on such boards when, for example, download big files over ethernet.
Signed-off-by: Yuri Tikhonov yur@emcraft.com --- lib_ppc/cache.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/lib_ppc/cache.c b/lib_ppc/cache.c index 27e1a82..5bfb220 100644 --- a/lib_ppc/cache.c +++ b/lib_ppc/cache.c @@ -23,6 +23,7 @@
#include <common.h> #include <asm/cache.h> +#include <watchdog.h>
void flush_cache (ulong start_addr, ulong size) { @@ -35,6 +36,7 @@ void flush_cache (ulong start_addr, ulong size) addr < end_addr; addr += CFG_CACHELINE_SIZE) { asm ("dcbst 0,%0": :"r" (addr)); + WATCHDOG_RESET(); } asm ("sync"); /* Wait for all dcbst to complete on bus */
@@ -42,6 +44,7 @@ void flush_cache (ulong start_addr, ulong size) addr < end_addr; addr += CFG_CACHELINE_SIZE) { asm ("icbi 0,%0": :"r" (addr)); + WATCHDOG_RESET(); } } asm ("sync"); /* Always flush prefetch queue in any case */