--- zzzz-none-000/linux-4.1.38/arch/mips/mm/dma-default.c	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/arch/mips/mm/dma-default.c	2020-11-25 10:06:48.000000000 +0000
@@ -72,6 +72,11 @@
 	return !plat_device_is_coherent(dev) &&
 	       (boot_cpu_type() == CPU_R10000 ||
 		boot_cpu_type() == CPU_R12000 ||
+#if defined(CONFIG_BCM_KF_MIPS_BCM963XX)
+		boot_cpu_type() == CPU_BMIPS3300 ||
+		boot_cpu_type() == CPU_BMIPS4350 ||
+		boot_cpu_type() == CPU_BMIPS4380 ||
+#endif
 		boot_cpu_type() == CPU_BMIPS5000);
 }