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| author | Stefan Roese <sr@denx.de> | 2016-04-06 11:02:22 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-04-11 20:48:25 -0400 |
| commit | 20adda4cf8980a9df1d966bd7bec918ac3e4e5d6 (patch) | |
| tree | 056c13df1fc936ef62b39c1fab6dc3ca77404b48 /drivers/bootcount | |
| parent | d9b2678e0a5e5781b37487ccb943ddcbf0623bb0 (diff) | |
| download | u-boot-imx-20adda4cf8980a9df1d966bd7bec918ac3e4e5d6.zip u-boot-imx-20adda4cf8980a9df1d966bd7bec918ac3e4e5d6.tar.gz u-boot-imx-20adda4cf8980a9df1d966bd7bec918ac3e4e5d6.tar.bz2 | |
bootcounter_ram: Flush dcache after data is written into SDRAM
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 <sr@denx.de>
Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Diffstat (limited to 'drivers/bootcount')
| -rw-r--r-- | drivers/bootcount/bootcount_ram.c | 3 |
1 files changed, 3 insertions, 0 deletions
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) |