arc/cache: Flush & invalidate all caches right before enabling IOC

[u-boot] / arch / arc / lib / cache.c

diff --git a/arch/arc/lib/cache.c b/arch/arc/lib/cache.c
index d1fb66153771a607a56afde1bc67bbe95dab743d..b6ec83112cd8aa5264d9572c9ef97fbf0f9462ce 100644 (file)
--- a/arch/arc/lib/cache.c
+++ b/arch/arc/lib/cache.c
@@ -209,6 +209,9 @@ void cache_init(void)
        read_decode_cache_bcr_arcv2();
 
        if (ioc_exists) {
+               flush_dcache_all();
+               invalidate_dcache_all();
+
                /* IO coherency base - 0x8z */
                write_aux_reg(ARC_AUX_IO_COH_AP0_BASE, 0x80000);
                /* IO coherency aperture size - 512Mb: 0x8z-0xAz */
@@ -417,13 +420,10 @@ void flush_cache(unsigned long start, unsigned long size)
 
 void invalidate_dcache_all(void)
 {
-#ifdef CONFIG_ISA_ARCV2
-       if (!ioc_exists)
-#endif
-               __dc_entire_op(OP_INV);
+       __dc_entire_op(OP_INV);
 
 #ifdef CONFIG_ISA_ARCV2
-       if (slc_exists && !ioc_exists)
+       if (slc_exists)
                __slc_entire_op(OP_INV);
 #endif
 }