mx5: Add workaround for ARM erratum ID 468414

[u-boot] / arch / arm / lib / cache-cp15.c

diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index e6c3eae6f9d2dad1b0bfe2f73d58922439870afa..939de10e039153d0fd1ef29cb962366d5357a355 100644 (file)
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -115,17 +115,17 @@ static void cache_disable(uint32_t cache_bit)
 {
        uint32_t reg;
 
+       reg = get_cr();
+       cp_delay();
+
        if (cache_bit == CR_C) {
                /* if cache isn;t enabled no need to disable */
-               reg = get_cr();
                if ((reg & CR_C) != CR_C)
                        return;
                /* if disabling data cache, disable mmu too */
                cache_bit |= CR_M;
                flush_dcache_all();
        }
-       reg = get_cr();
-       cp_delay();
        set_cr(reg & ~cache_bit);
 }
 #endif