Index: target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c
===================================================================
--- target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c	(revision 27158)
+++ target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb4xx.c	(working copy)
@@ -342,3 +342,16 @@
 
 MIPS_MACHINE(AR71XX_MACH_RB_493, "493", "MikroTik RouterBOARD 493/AH",
 	     rb493_setup);
+
+static void __init rb493g_setup(void)
+{
+
+    rb450_generic_setup(1);
+    spi_register_board_info(rb4xx_microsd_info,
+                ARRAY_SIZE(rb4xx_microsd_info));
+
+    ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+}
+
+MIPS_MACHINE(AR71XX_MACH_RB_493G, "493G", "MikroTik RouterBOARD 493G/AH",
+         rb493g_setup);
Index: target/linux/ar71xx/files/arch/mips/ar71xx/machtype.h
===================================================================
--- target/linux/ar71xx/files/arch/mips/ar71xx/machtype.h	(revision 27158)
+++ target/linux/ar71xx/files/arch/mips/ar71xx/machtype.h	(working copy)
@@ -33,6 +33,7 @@
 	AR71XX_MACH_RB_450,	/* MikroTik RouterBOARD 450 */
 	AR71XX_MACH_RB_450G,	/* MikroTik RouterBOARD 450G */
 	AR71XX_MACH_RB_493,	/* Mikrotik RouterBOARD 493/493AH */
+   AR71XX_MACH_RB_493G, /* Mikrotik RouterBOARD 493G/493GAH */
 	AR71XX_MACH_RB_750,	/* MikroTik RouterBOARD 750 */
 	AR71XX_MACH_PB42,	/* Atheros PB42 */
 	AR71XX_MACH_PB44,	/* Atheros PB44 */