Index: sys/arm/allwinner/aw_machdep.c
===================================================================
--- sys/arm/allwinner/aw_machdep.c
+++ sys/arm/allwinner/aw_machdep.c
@@ -147,18 +147,6 @@
 	return (0);
 }
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-	return (0);
-}
-
 static void
 allwinner_cpu_reset(platform_t plat)
 {
Index: sys/arm/altera/socfpga/socfpga_machdep.c
===================================================================
--- sys/arm/altera/socfpga/socfpga_machdep.c
+++ sys/arm/altera/socfpga/socfpga_machdep.c
@@ -100,17 +100,3 @@
 
 	return (0);
 }
-
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
Index: sys/arm/amlogic/aml8726/aml8726_machdep.c
===================================================================
--- sys/arm/amlogic/aml8726/aml8726_machdep.c
+++ sys/arm/amlogic/aml8726/aml8726_machdep.c
@@ -166,20 +166,6 @@
 	return (0);
 }
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 struct fdt_fixup_entry fdt_fixup_table[] = {
 	{ NULL, NULL }
 };
Index: sys/arm/annapurna/alpine/alpine_machdep.c
===================================================================
--- sys/arm/annapurna/alpine/alpine_machdep.c
+++ sys/arm/annapurna/alpine/alpine_machdep.c
@@ -131,17 +131,3 @@
 	devmap_add_entry(al_devmap_pa, al_devmap_size);
 	return (0);
 }
-
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
Index: sys/arm/arm/busdma_machdep-v6.c
===================================================================
--- sys/arm/arm/busdma_machdep-v6.c
+++ sys/arm/arm/busdma_machdep-v6.c
@@ -507,8 +507,8 @@
 	newtag->flags = flags;
 	newtag->ref_count = 1; /* Count ourself */
 	newtag->map_count = 0;
-	newtag->ranges = bus_dma_get_range();
-	newtag->_nranges = bus_dma_get_range_nb();
+	newtag->ranges = NULL;
+	newtag->_nranges = 0;
 	if (lockfunc != NULL) {
 		newtag->lockfunc = lockfunc;
 		newtag->lockfuncarg = lockfuncarg;
Index: sys/arm/broadcom/bcm2835/bcm2835_machdep.c
===================================================================
--- sys/arm/broadcom/bcm2835/bcm2835_machdep.c
+++ sys/arm/broadcom/bcm2835/bcm2835_machdep.c
@@ -113,19 +113,7 @@
 }
 #endif
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
 
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
 
 static void
 bcm2835_cpu_reset(platform_t plat)
Index: sys/arm/freescale/imx/imx_machdep.c
===================================================================
--- sys/arm/freescale/imx/imx_machdep.c
+++ sys/arm/freescale/imx/imx_machdep.c
@@ -54,20 +54,6 @@
 SYSCTL_STRING(_hw_imx, OID_AUTO, last_reset_reason, CTLFLAG_RD, 
     "unknown", 0, "Last reset reason");
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 /*
  * This code which manipulates the watchdog hardware is here to implement
  * cpu_reset() because the watchdog is the only way for software to reset the
Index: sys/arm/freescale/vybrid/vf_machdep.c
===================================================================
--- sys/arm/freescale/vybrid/vf_machdep.c
+++ sys/arm/freescale/vybrid/vf_machdep.c
@@ -78,17 +78,3 @@
 
 	return (0);
 }
-
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
Index: sys/arm/include/bus_dma.h
===================================================================
--- sys/arm/include/bus_dma.h
+++ sys/arm/include/bus_dma.h
@@ -91,8 +91,10 @@
 #define	ARM32_BUFTYPE_UIO		3
 #define	ARM32_BUFTYPE_RAW		4
 
+#if __ARM_ARCH < 6
 struct arm32_dma_range	*bus_dma_get_range(void);
 int	bus_dma_get_range_nb(void);
+#endif
 
 #endif /* _ARM32_BUS_DMA_PRIVATE */
 
Index: sys/arm/mv/mv_machdep.c
===================================================================
--- sys/arm/mv/mv_machdep.c
+++ sys/arm/mv/mv_machdep.c
@@ -432,6 +432,7 @@
 	return (0);
 }
 
+#if __ARM_ARCH < 6
 struct arm32_dma_range *
 bus_dma_get_range(void)
 {
@@ -445,6 +446,7 @@
 
 	return (0);
 }
+#endif
 
 #if defined(CPU_MV_PJ4B)
 #ifdef DDB
Index: sys/arm/nvidia/tegra124/tegra124_machdep.c
===================================================================
--- sys/arm/nvidia/tegra124/tegra124_machdep.c
+++ sys/arm/nvidia/tegra124/tegra124_machdep.c
@@ -66,20 +66,6 @@
 	{ NULL, NULL }
 };
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 static vm_offset_t
 tegra124_lastaddr(platform_t plat)
 {
Index: sys/arm/qemu/virt_machdep.c
===================================================================
--- sys/arm/qemu/virt_machdep.c
+++ sys/arm/qemu/virt_machdep.c
@@ -45,20 +45,6 @@
 
 #include "platform_if.h"
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 static vm_offset_t
 virt_lastaddr(platform_t plat)
 {
Index: sys/arm/rockchip/rk30xx_machdep.c
===================================================================
--- sys/arm/rockchip/rk30xx_machdep.c
+++ sys/arm/rockchip/rk30xx_machdep.c
@@ -92,20 +92,6 @@
 	return (0);
 }
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 void
 cpu_reset()
 {
Index: sys/arm/samsung/exynos/exynos5_machdep.c
===================================================================
--- sys/arm/samsung/exynos/exynos5_machdep.c
+++ sys/arm/samsung/exynos/exynos5_machdep.c
@@ -83,17 +83,3 @@
 
 	return (0);
 }
-
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
Index: sys/arm/ti/ti_machdep.c
===================================================================
--- sys/arm/ti/ti_machdep.c
+++ sys/arm/ti/ti_machdep.c
@@ -96,20 +96,6 @@
 }
 #endif
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 static void
 ti_plat_cpu_reset(platform_t plat)
 {
Index: sys/arm/versatile/versatile_machdep.c
===================================================================
--- sys/arm/versatile/versatile_machdep.c
+++ sys/arm/versatile/versatile_machdep.c
@@ -102,20 +102,6 @@
 	return (0);
 }
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 void
 cpu_reset()
 {
Index: sys/arm/xilinx/zy7_machdep.c
===================================================================
--- sys/arm/xilinx/zy7_machdep.c
+++ sys/arm/xilinx/zy7_machdep.c
@@ -120,20 +120,6 @@
 };
 #endif
 
-struct arm32_dma_range *
-bus_dma_get_range(void)
-{
-
-	return (NULL);
-}
-
-int
-bus_dma_get_range_nb(void)
-{
-
-	return (0);
-}
-
 void
 cpu_reset()
 {