This patch adds a call to flush_dcache_range() to bootcount_store() to
make sure, that the bootcounter data (including the patterns) is
written to memory. Without this, platforms with dcache enabled may not
have the bootcounter updated upon reset.
Signed-off-by: Stefan Roese <s...@denx.de>
Cc: Valentin Longchamp <valentin.longch...@keymile.com>
---
drivers/bootcount/bootcount_ram.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/bootcount/bootcount_ram.c
b/drivers/bootcount/bootcount_ram.c
index 5bdabcd..e0d2669 100644
--- a/drivers/bootcount/bootcount_ram.c
+++ b/drivers/bootcount/bootcount_ram.c
@@ -35,6 +35,9 @@ void bootcount_store(ulong a)
writel(patterns[i % NBR_OF_PATTERNS],
&save_addr[i + OFFS_PATTERN]);
+ /* Make sure the data is written to RAM */
+ flush_dcache_range((ulong)&save_addr[0],
+ (ulong)&save_addr[REPEAT_PATTERN + OFFS_PATTERN]);
}
ulong bootcount_load(void)
--
2.8.1
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