--- /dev/null
+--- a/arch/mips/ath79/dev-wmac.c
++++ b/arch/mips/ath79/dev-wmac.c
+@@ -270,6 +270,16 @@ bool __init ar93xx_wmac_read_mac_address
+ return ret;
+ }
+
++void __init ath79_wmac_disable_2ghz(void)
++{
++ ath79_wmac_data.disable_2ghz = true;
++}
++
++void __init ath79_wmac_disable_5ghz(void)
++{
++ ath79_wmac_data.disable_5ghz = true;
++}
++
+ void __init ath79_register_wmac(u8 *cal_data, u8 *mac_addr)
+ {
+ if (soc_is_ar913x())
+--- a/arch/mips/ath79/dev-wmac.h
++++ b/arch/mips/ath79/dev-wmac.h
+@@ -13,6 +13,9 @@
+ #define _ATH79_DEV_WMAC_H
+
+ void ath79_register_wmac(u8 *cal_data, u8 *mac_addr);
++void ath79_wmac_disable_2ghz(void);
++void ath79_wmac_disable_5ghz(void);
++
+ bool ar93xx_wmac_read_mac_address(u8 *dest);
+
+ #endif /* _ATH79_DEV_WMAC_H */