--- a/arch/mips/ath79/machtypes.h
+++ b/arch/mips/ath79/machtypes.h
@@ -76,6 +76,7 @@ enum ath79_mach_type {
 	ATH79_MACH_RB_450,		/* MikroTik RouterBOARD 450 */
 	ATH79_MACH_RB_493,		/* Mikrotik RouterBOARD 493/493AH */
 	ATH79_MACH_RB_493G,		/* Mikrotik RouterBOARD 493G */
+	ATH79_MACH_RB_711GR100,		/* Mikrotik RouterBOARD 911/912 boards */
 	ATH79_MACH_RB_750,		/* MikroTik RouterBOARD 750 */
 	ATH79_MACH_RB_750G_R3,		/* MikroTik RouterBOARD 750GL */
 	ATH79_MACH_RB_751,		/* MikroTik RouterBOARD 751 */
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -391,6 +391,16 @@ config ATH79_MACH_RB750
 	select ATH79_ROUTERBOOT
 	select RLE_DECOMPRESS
 
+config ATH79_MACH_RB91X
+	bool "MikroTik RouterBOARD 91X support"
+	select SOC_AR934X
+	select ATH79_DEV_ETH
+	select ATH79_DEV_SPI
+	select ATH79_DEV_WMAC
+	select ATH79_DEV_USB
+	select ATH79_ROUTERBOOT
+	select RLE_DECOMPRESS
+
 config ATH79_MACH_RB95X
        bool "MikroTik RouterBOARD 95X support"
        select SOC_AR934X
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_ATH79_MACH_PB44)		+= mach-p
 obj-$(CONFIG_ATH79_MACH_PB92)		+= mach-pb92.o
 obj-$(CONFIG_ATH79_MACH_RB4XX)		+= mach-rb4xx.o
 obj-$(CONFIG_ATH79_MACH_RB750)		+= mach-rb750.o
+obj-$(CONFIG_ATH79_MACH_RB91X)		+= mach-rb91x.o
 obj-$(CONFIG_ATH79_MACH_RB95X)		+= mach-rb95x.o
 obj-$(CONFIG_ATH79_MACH_RB2011)		+= mach-rb2011.o
 obj-$(CONFIG_ATH79_MACH_RW2458N)	+= mach-rw2458n.o