diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
index 7193849f35..dce20584d2 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
@@ -212,3 +212,26 @@ static void __init rb450_setup(void)
 }
 
 MIPS_MACHINE(MACH_AR71XX_RB_450, "MikroTik RouterBOARD 450", rb450_setup);
+
+static void __init rb493_setup(void)
+{
+	rb4xx_add_device_spi();
+
+#if 0
+	ar71xx_add_device_mdio(0x3fffff00);
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000000);
+	ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0x00000001);
+#endif
+
+	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
+					rb4xx_leds_gpio);
+
+	ar71xx_add_device_gpio_buttons(-1, RB4XX_BUTTONS_POLL_INTERVAL,
+					ARRAY_SIZE(rb4xx_gpio_buttons),
+					rb4xx_gpio_buttons);
+
+	platform_device_register(&rb4xx_nand_device);
+}
+
+MIPS_MACHINE(MACH_AR71XX_RB_493, "MikroTik RouterBOARD 493/AH", rb493_setup);
+
diff --git a/target/linux/ar71xx/patches-2.6.26/001-ar71xx_core.patch b/target/linux/ar71xx/patches-2.6.26/001-ar71xx_core.patch
index 229387c1ab..cd537eb0ca 100644
--- a/target/linux/ar71xx/patches-2.6.26/001-ar71xx_core.patch
+++ b/target/linux/ar71xx/patches-2.6.26/001-ar71xx_core.patch
@@ -16,7 +16,7 @@
  
 --- a/include/asm-mips/bootinfo.h
 +++ b/include/asm-mips/bootinfo.h
-@@ -79,6 +79,15 @@
+@@ -79,6 +79,16 @@
  #define  MACH_LASAT_200		1	/* Masquerade PRO/SP200 */
  
  /*
@@ -24,9 +24,10 @@
 + */
 +#define MACH_AR71XX_GENERIC	0
 +#define MACH_AR71XX_WP543	1	/* Compex WP543 */
-+#define MACH_AR71XX_RB_411	2	/* MikroTik RouterBOARD 411 */
++#define MACH_AR71XX_RB_411	2	/* MikroTik RouterBOARD 411/411A/411AH */
 +#define MACH_AR71XX_RB_433	3	/* MikroTik RouterBOARD 433/433AH */
 +#define MACH_AR71XX_RB_450	4	/* MikroTik RouterBOARD 450 */
++#define MACH_AR71XX_RB_493	5	/* Mikrotik RouterBOARD 493/493AH */
 +
 +/*
   * Valid machtype for group NEC EMMA2RH
diff --git a/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch b/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch
index 1f1480c879..8ff96e306a 100644
--- a/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch
+++ b/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch
@@ -16,7 +16,7 @@
  
 --- a/include/asm-mips/bootinfo.h
 +++ b/include/asm-mips/bootinfo.h
-@@ -57,6 +57,15 @@
+@@ -57,6 +57,16 @@
  #define	MACH_MIKROTIK_RB532	0	/* Mikrotik RouterBoard 532 	*/
  #define MACH_MIKROTIK_RB532A	1	/* Mikrotik RouterBoard 532A 	*/
  
@@ -25,9 +25,10 @@
 + */
 +#define MACH_AR71XX_GENERIC	0
 +#define MACH_AR71XX_WP543	1	/* Compex WP543 */
-+#define MACH_AR71XX_RB_411	2	/* MikroTik RouterBOARD 411 */
++#define MACH_AR71XX_RB_411	2	/* MikroTik RouterBOARD 411/411A/411AH */
 +#define MACH_AR71XX_RB_433	3	/* MikroTik RouterBOARD 433/433AH */
 +#define MACH_AR71XX_RB_450	4	/* MikroTik RouterBOARD 450 */
++#define MACH_AR71XX_RB_493	5	/* Mikrotik RouterBOARD 493/493AH */
 +
  #define CL_SIZE			COMMAND_LINE_SIZE