diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index fdeffc8..df5094d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -546,6 +546,15 @@
 	help
 	  If you want this kernel to run on SGI O2 workstation, say Y here.
 
+config SIBYTE_BIGSUR
+	bool "Support for Sibyte BigSur"
+	select BOOT_ELF32
+	select DMA_COHERENT
+	select SIBYTE_BCM1x80
+	select SWAP_IO_SPACE
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+
 config SIBYTE_SWARM
 	bool "Support for Sibyte BCM91250A-SWARM"
 	select BOOT_ELF32
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 92e1615..0269202 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -671,6 +671,7 @@
 # Sibyte BCM91125C (CRhone) board
 # Sibyte BCM91125E (Rhone) board
 # Sibyte SWARM board
+# Sibyte BCM91x80 (BigSur) board
 #
 libs-$(CONFIG_SIBYTE_CARMEL)	+= arch/mips/sibyte/swarm/
 load-$(CONFIG_SIBYTE_CARMEL)	:= 0xffffffff80100000
@@ -684,6 +685,8 @@
 load-$(CONFIG_SIBYTE_SENTOSA)	:= 0xffffffff80100000
 libs-$(CONFIG_SIBYTE_SWARM)	+= arch/mips/sibyte/swarm/
 load-$(CONFIG_SIBYTE_SWARM)	:= 0xffffffff80100000
+libs-$(CONFIG_SIBYTE_BIGSUR)	+= arch/mips/sibyte/swarm/
+load-$(CONFIG_SIBYTE_BIGSUR)	:= 0xffffffff80100000
 
 #
 # SNI RM200 PCI
diff --git a/include/asm-mips/sibyte/bigsur.h b/include/asm-mips/sibyte/bigsur.h
new file mode 100644
index 0000000..ebefe79
--- /dev/null
+++ b/include/asm-mips/sibyte/bigsur.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2000,2001,2002,2003,2004 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+#ifndef __ASM_SIBYTE_BIGSUR_H
+#define __ASM_SIBYTE_BIGSUR_H
+
+#include <asm/sibyte/sb1250.h>
+#include <asm/sibyte/bcm1480_int.h>
+
+#ifdef CONFIG_SIBYTE_BIGSUR
+#define SIBYTE_BOARD_NAME "BCM91x80A/B (BigSur)"
+#define SIBYTE_HAVE_PCMCIA 1
+#define SIBYTE_HAVE_IDE    1
+#endif
+
+/* Generic bus chip selects */
+#define LEDS_CS         3
+#define LEDS_PHYS       0x100a0000
+
+#ifdef SIBYTE_HAVE_IDE
+#define IDE_CS          4
+#define IDE_PHYS        0x100b0000
+#define K_GPIO_GB_IDE   4
+#define K_INT_GB_IDE    (K_INT_GPIO_0 + K_GPIO_GB_IDE)
+#endif
+
+#ifdef SIBYTE_HAVE_PCMCIA
+#define PCMCIA_CS       6
+#define PCMCIA_PHYS     0x11000000
+#define K_GPIO_PC_READY 9
+#define K_INT_PC_READY  (K_INT_GPIO_0 + K_GPIO_PC_READY)
+#endif
+
+#endif /* __ASM_SIBYTE_BIGSUR_H */
+
diff --git a/include/asm-mips/sibyte/board.h b/include/asm-mips/sibyte/board.h
index 3d94093..900edcb 100644
--- a/include/asm-mips/sibyte/board.h
+++ b/include/asm-mips/sibyte/board.h
@@ -35,6 +35,10 @@
 #include <asm/sibyte/carmel.h>
 #endif
 
+#ifdef CONFIG_SIBYTE_BIGSUR
+#include <asm/sibyte/bigsur.h>
+#endif
+
 #ifdef __ASSEMBLY__
 
 #ifdef LEDS_PHYS