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>
This commit is contained in:
Stefano Babic 2018-02-22 12:30:41 +01:00
parent 474ecd2c84
commit 1947c2d2a0
1 changed files with 3 additions and 0 deletions

View File

@ -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)