Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 3946739..dbdbfe5 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -221,13 +221,26 @@
 	else
 		return 0;
 
-	/*
-	 * According to config2 it would be 5-ways, but that is contradicted
-	 * by all documentation.
-	 */
-	if (current_cpu_type() == CPU_JZRISC &&
-				mips_machtype == MACH_INGENIC_JZ4770)
-		c->scache.ways = 4;
+	if (current_cpu_type() == CPU_XBURST) {
+		switch (mips_machtype) {
+		/*
+		 * According to config2 it would be 5-ways, but that is
+		 * contradicted by all documentation.
+		 */
+		case MACH_INGENIC_JZ4770:
+			c->scache.ways = 4;
+			break;
+
+		/*
+		 * According to config2 it would be 5-ways and 512-sets,
+		 * but that is contradicted by all documentation.
+		 */
+		case MACH_INGENIC_X1000:
+			c->scache.sets = 256;
+			c->scache.ways = 4;
+			break;
+		}
+	}
 
 	c->scache.waysize = c->scache.sets * c->scache.linesz;
 	c->scache.waybit = __ffs(c->scache.waysize);