csky: Support icache flush without specific instructions
Some CPUs don't support icache specific instructions to flush icache
lines in broadcast way. We use cpu control registers to flush local
icache and use IPI to notify other cores.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 1c723cb..111474b 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -231,6 +231,10 @@
bool "CPU has FPU coprocessor"
depends on CPU_CK807 || CPU_CK810 || CPU_CK860
+config CPU_HAS_ICACHE_INS
+ bool "CPU has Icache invalidate instructions"
+ depends on CPU_HAS_CACHEV2
+
config CPU_HAS_TEE
bool "CPU has Trusted Execution Environment"
depends on CPU_CK810
