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| author | Stefano Babic <sbabic@denx.de> | 2018-02-22 12:30:41 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2018-07-23 09:55:20 +0200 |
| commit | 1947c2d2a08fb07330d15fc30416969afbe61bbc (patch) | |
| tree | 7f0b74ce98fe5f461208e0a1d314d14d8cab8304 /drivers/bootcount | |
| parent | 474ecd2c84d97314b8145fbe3a57887f41b2edb3 (diff) | |
bootcount: flush after storing the bootcounter
If the bootcounter address is in a cached memory,
a flush of dcache must occur after updateing the bootcounter.
Issue found on i.MX6 where bootcounter is put into the internal
(cached) IRAM.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers/bootcount')
| -rw-r--r-- | drivers/bootcount/bootcount.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bootcount/bootcount.c b/drivers/bootcount/bootcount.c index e00d81c934..a3162c97ed 100644 --- a/drivers/bootcount/bootcount.c +++ b/drivers/bootcount/bootcount.c @@ -18,6 +18,9 @@ __weak void bootcount_store(ulong a) raw_bootcount_store(reg, a); raw_bootcount_store(reg + 4, BOOTCOUNT_MAGIC); #endif /* defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD */ + flush_dcache_range(CONFIG_SYS_BOOTCOUNT_ADDR, + CONFIG_SYS_BOOTCOUNT_ADDR + + CONFIG_SYS_CACHELINE_SIZE); } __weak ulong bootcount_load(void) |