When flush the d$ with set/way instruction, it need calculate the way's
offset = log2(Associativity); but in current uboot's code, it use below
formula to calculate the offset: log2(Associativity * 2 - 1), so finally
it cannot flush data cache properly.
Signed-off-by: Leo Yan <l...@marvell.com>
---
arch/arm/cpu/armv8/cache.S | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S
index 546a83e..256d2e2 100644
--- a/arch/arm/cpu/armv8/cache.S
+++ b/arch/arm/cpu/armv8/cache.S
@@ -30,9 +30,7 @@ ENTRY(__asm_flush_dcache_level)
add x2, x2, #4 /* x2 <- log2(cache line size) */
mov x3, #0x3ff
and x3, x3, x6, lsr #3 /* x3 <- max number of #ways */
- add w4, w3, w3
- sub w4, w4, 1 /* round up log2(#ways + 1) */
- clz w5, w4 /* bit position of #ways */
+ clz w5, w3 /* bit position of #ways */
mov x4, #0x7fff
and x4, x4, x6, lsr #13 /* x4 <- max number of #sets */
/* x1 <- cache level << 1 */
--
1.7.9.5
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
