diff --git a/src/arch/arm/armv7/cache.c b/src/arch/arm/armv7/cache.c
index acd1f9aefa..4ee2687d38 100644
--- a/src/arch/arm/armv7/cache.c
+++ b/src/arch/arm/armv7/cache.c
@@ -194,17 +194,20 @@ void dcache_invalidate_all(void)
 	dcache_foreach(OP_DCISW);
 }
 
-static unsigned int line_bytes(void)
+unsigned int dcache_line_bytes(void)
 {
 	uint32_t ccsidr;
-	unsigned int size;
+	static unsigned int line_bytes = 0;
+
+	if (line_bytes)
+		return line_bytes;
 
 	ccsidr = read_ccsidr();
 	/* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */
-	size = 1 << ((ccsidr & 0x7) + 2);	/* words per line */
-	size *= sizeof(unsigned int);		/* bytes per line */
+	line_bytes = 1 << ((ccsidr & 0x7) + 2);	/* words per line */
+	line_bytes *= sizeof(unsigned int);	/* bytes per line */
 
-	return size;
+	return line_bytes;
 }
 
 /*
@@ -217,7 +220,7 @@ static void dcache_op_mva(void const *addr, size_t len, enum dcache_op op)
 {
 	unsigned long line, linesize;
 
-	linesize = line_bytes();
+	linesize = dcache_line_bytes();
 	line = (uint32_t)addr & ~(linesize - 1);
 
 	dsb();
diff --git a/src/arch/arm/include/armv7/arch/cache.h b/src/arch/arm/include/armv7/arch/cache.h
index db745b842e..69d319566d 100644
--- a/src/arch/arm/include/armv7/arch/cache.h
+++ b/src/arch/arm/include/armv7/arch/cache.h
@@ -305,6 +305,9 @@ void dcache_clean_all(void);
 /* dcache invalidate all (on current level given by CCSELR) */
 void dcache_invalidate_all(void);
 
+/* returns number of bytes per cache line */
+unsigned int dcache_line_bytes(void);
+
 /* dcache and MMU disable */
 void dcache_mmu_disable(void);