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| author | Yuri Tikhonov <yur@emcraft.com> | 2008-04-29 13:32:45 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-04-29 14:48:50 +0200 |
| commit | 138105efe1d2b1a40a3a97b4c1f85c2111bea2d8 (patch) | |
| tree | 4e2459d4bb355cc9d997bd7b7bba6c75a0c3a0d8 | |
| parent | 18ec19e4aa1a045dfbf2c7c2e33963488e92d757 (diff) | |
| download | u-boot-imx-138105efe1d2b1a40a3a97b4c1f85c2111bea2d8.zip u-boot-imx-138105efe1d2b1a40a3a97b4c1f85c2111bea2d8.tar.gz u-boot-imx-138105efe1d2b1a40a3a97b4c1f85c2111bea2d8.tar.bz2 | |
ppc flush_cache: add watch-dog triggering into the loops.
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>
| -rw-r--r-- | 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 */ |