diff -urN linux-2.6.24.7/arch/mips/Kconfig linux-2.6.24.7.new/arch/mips/Kconfig
--- linux-2.6.24.7/arch/mips/Kconfig	2008-05-07 01:22:34.000000000 +0200
+++ linux-2.6.24.7.new/arch/mips/Kconfig	2008-07-15 15:29:51.000000000 +0200
@@ -687,6 +687,23 @@
 	  This enables support for the Wind River MIPS32 4KC PPMC evaluation
 	  board, which is based on GT64120 bridge chip.
 
+config MIKROTIK_RB500
+	bool "Support for RB5xx boards"
+	select HW_HAS_PCI
+       select CEVT_R4K
+       select CSRC_R4K
+	select IRQ_CPU
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SWAP_IO_SPACE
+	select DMA_NONCOHERENT
+	select GENERIC_GPIO
+	help
+	  Support the Mikrotik(tm) Routerboard 500 series,
+	  such as the RB532.
+
+
 endchoice
 
 source "arch/mips/au1000/Kconfig"
@@ -967,6 +982,7 @@
 	default "4" if MACH_DECSTATION
 	default "7" if SGI_IP27 || SNI_RM
 	default "4" if PMC_MSP4200_EVAL
+	default "4" if MIKROTIK_RB500
 	default "5"
 
 config HAVE_STD_PC_SERIAL_PORT
diff -urN linux-2.6.24.7/arch/mips/Makefile linux-2.6.24.7.new/arch/mips/Makefile
--- linux-2.6.24.7/arch/mips/Makefile	2008-07-15 15:27:55.000000000 +0200
+++ linux-2.6.24.7.new/arch/mips/Makefile	2008-07-15 15:30:21.000000000 +0200
@@ -297,6 +297,13 @@
 cflags-$(CONFIG_LEMOTE_FULONG) += -Iinclude/asm-mips/mach-lemote
 
 #
+# Routerboard 532 board
+#
+core-$(CONFIG_MIKROTIK_RB500)  += arch/mips/rb500/
+cflags-$(CONFIG_MIKROTIK_RB500)        += -Iinclude/asm-mips/rc32434
+load-$(CONFIG_MIKROTIK_RB500)  += 0xffffffff80101000
+
+#
 # For all MIPS, Inc. eval boards
 #
 core-$(CONFIG_MIPS_BOARDS_GEN)	+= arch/mips/mips-boards/generic/
diff -urN linux-2.6.24.7/arch/mips/pci/Makefile linux-2.6.24.7.new/arch/mips/pci/Makefile
--- linux-2.6.24.7/arch/mips/pci/Makefile	2008-05-07 01:22:34.000000000 +0200
+++ linux-2.6.24.7.new/arch/mips/pci/Makefile	2008-07-15 15:30:46.000000000 +0200
@@ -48,3 +48,4 @@
 obj-$(CONFIG_VICTOR_MPC30X)	+= fixup-mpc30x.o
 obj-$(CONFIG_ZAO_CAPCELLA)	+= fixup-capcella.o
 obj-$(CONFIG_WR_PPMC)		+= fixup-wrppmc.o
+obj-$(CONFIG_MIKROTIK_RB500)	+= pci-rc32434.o ops-rc32434.o fixup-rb500.o
diff -urN linux-2.6.24.7/drivers/pci/Makefile linux-2.6.24.7.new/drivers/pci/Makefile
--- linux-2.6.24.7/drivers/pci/Makefile	2008-05-07 01:22:34.000000000 +0200
+++ linux-2.6.24.7.new/drivers/pci/Makefile	2008-07-15 15:31:20.000000000 +0200
@@ -35,6 +35,7 @@
 obj-$(CONFIG_PPC64) += setup-bus.o
 obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
 obj-$(CONFIG_X86_VISWS) += setup-irq.o
+obj-$(CONFIG_MIKROTIK_RB500) += setup-irq.o
 
 #
 # ACPI Related PCI FW Functions
diff -urN linux-2.6.24.7/include/asm-mips/bootinfo.h linux-2.6.24.7.new/include/asm-mips/bootinfo.h
--- linux-2.6.24.7/include/asm-mips/bootinfo.h	2008-05-07 01:22:34.000000000 +0200
+++ linux-2.6.24.7.new/include/asm-mips/bootinfo.h	2008-07-15 15:32:06.000000000 +0200
@@ -198,6 +198,14 @@
 #define MACH_GROUP_BRCM		23	/* Broadcom			*/
 #define  MACH_BCM47XX		1	/* Broadcom BCM47XX		*/
 
+
+/*
+ * Valid machtype for group Mikrotik
+ */
+#define MACH_GROUP_MIKROTIK    29      /* Mikrotik Boards                       */
+#define  MACH_MIKROTIK_RB532   0       /* Mikrotik RouterBoard 532 */
+#define  MACH_MIKROTIK_RB532A  1       /* Mikrotik RouterBoard 532A */
+
 #define CL_SIZE			COMMAND_LINE_SIZE
 
 const char *get_system_type(void);
diff -urN linux-2.6.24.7/include/asm-mips/cpu.h linux-2.6.24.7.new/include/asm-mips/cpu.h
--- linux-2.6.24.7/include/asm-mips/cpu.h	2008-05-07 01:22:34.000000000 +0200
+++ linux-2.6.24.7.new/include/asm-mips/cpu.h	2008-07-15 15:32:22.000000000 +0200
@@ -196,7 +196,7 @@
 	 */
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_74K, CPU_AU1000,
 	CPU_AU1100, CPU_AU1200, CPU_AU1500, CPU_AU1550, CPU_PR4450,
-	CPU_BCM3302, CPU_BCM4710,
+	CPU_BCM3302, CPU_BCM4710, CPU_RC32300,
 
 	/*
 	 * MIPS64 class processors