armv7: Use isb/dsb directly in start.S
Toolchains which do not directly support using "isb" and "dsb" directly
are no longer functionally supported in U-Boot. Furthermore, clang has
for a long time warned about using the alternate form that we were.
Update the code.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index 7d7aac0..69e281b 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -134,8 +134,8 @@
*/
#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
mcr p15, 0, r0, c7, c5, 0 @ invalidate icache
- mcr p15, 0, r0, c7, c10, 4 @ DSB
- mcr p15, 0, r0, c7, c5, 4 @ ISB
+ dsb
+ isb
#endif
bx lr
@@ -188,8 +188,8 @@
mcr p15, 0, r0, c8, c7, 0 @ invalidate TLBs
mcr p15, 0, r0, c7, c5, 0 @ invalidate icache
mcr p15, 0, r0, c7, c5, 6 @ invalidate BP array
- mcr p15, 0, r0, c7, c10, 4 @ DSB
- mcr p15, 0, r0, c7, c5, 4 @ ISB
+ dsb
+ isb
/*
* disable MMU stuff and caches