add all source code from linksys/broadcom which is free, to cvs for better maintainence inside

openwrt. this gives us the ability to better support different hardware models, without changing
any external tar-balls. only et.o and wl.o is missing and is fetched from my webserver.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@379 3c298f89-4303-0410-b956-a3cf2f4a3e73

25 files changed, 5124 insertions, 0 deletions

diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/Makefile b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/Makefile
new file mode 100644
index 000000000..eae8eba49
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/Makefile
@@ -0,0 +1,23 @@
+#
+# Makefile for Broadcom BCM947XX boards
+#
+# Copyright 2004, Broadcom Corporation
+# All Rights Reserved.
+# 
+# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+#
+# $Id$
+#
+
+O_TARGET	:= bcm947xx.o
+
+export-objs	:= nvram_linux.o setup.o
+obj-y		:= prom.o setup.o time.o sbmips.o sbpci.o pcibios.o perfcntr.o gpio.o
+obj-y		+= sflash.o nvram.o nvram_linux.o
+
+vpath %.c $(SRCBASE)/shared $(SRCBASE)/shared/nvram
+
+include $(TOPDIR)/Rules.make
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
new file mode 100644
index 000000000..400465326
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
@@ -0,0 +1,100 @@
+#
+# Makefile for Broadcom BCM947XX boards
+#
+# Copyright 2001-2003, Broadcom Corporation
+# All Rights Reserved.
+# 
+# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+#
+# $Id$
+#
+# Copyright 2004  Manuel Novoa III <mjn3@codepoet.org>
+#   Modified to support bzip'd kernels.
+#   Of course, it would be better to integrate bunzip capability into CFE.
+#
+
+# Link at 3 MB offset in RAM
+#TEXT_START	?= 0x80300000
+TEXT_START	?= 0x80001000
+BZ_MEM_TOP	:= 0x81000000
+BZ_TEXT_START	:= BZ_MEM_TOP-0x4000
+BZ_STACK_TOP	:= BZ_TEXT_START-4
+
+OBJCOPY		:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+
+SRCBASE		:= $(TOPDIR)/../..
+VPATH		:= $(SRCBASE)/shared
+ASFLAGS		+= -D__ASSEMBLY__ -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR)
+ASFLAGS		+= -DBZ_MEM_TOP=$(BZ_MEM_TOP)
+ASFLAGS		+= -DBZ_TEXT_START=$(BZ_TEXT_START)
+ASFLAGS		+= -DBZ_STACK_TOP=$(BZ_STACK_TOP)
+CFLAGS		+= -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR)
+CFLAGS		+= -DBZ_MEM_TOP=$(BZ_MEM_TOP)
+CFLAGS		+= -DBZ_TEXT_START=$(BZ_TEXT_START)
+CFLAGS		+= -DBZ_STACK_TOP=$(BZ_STACK_TOP)
+ifdef CONFIG_MCOUNT
+CFLAGS		:= $(subst -pg,,$(CFLAGS))
+endif
+CFLAGS		+= -ffunction-sections $(call check_gcc, -fvtable-gc, )
+SEDFLAGS	:= s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/BZ_MEM_TOP/$(BZ_MEM_TOP)/;s/TEXT_START/$(TEXT_START)/
+
+SYSTEM		?= $(TOPDIR)/vmlinux
+OBJECTS		:= head.o data.o
+
+all: bzImage vmlinuz
+
+# Don't build dependencies, this may die if $(CC) isn't gcc
+dep:
+
+# Create a gzipped version named vmlinuz for compatibility
+vmlinuz: piggy
+	gzip -c9 $< > $@
+
+# Our bzImage is a gzip'd binary that decompresses and runs
+#   the appended bzip'd kernel.
+bzImage: bzLoaderImage.gz piggz
+	cat bzLoaderImage.gz piggz > $@
+
+bzLoaderImage.gz: bzLoaderImage
+	gzip -nc9 $< > $@
+
+bzLoaderImage: bzLoader
+	$(OBJCOPY) $< $@
+
+bzLoader: vmlinux.lds $(OBJECTS)
+	$(LD) -static --gc-sections -no-warn-mismatch -T vmlinux.lds -o $@ $(OBJECTS)
+
+vmlinux.lds: vmlinux.lds.in Makefile
+	@sed "$(SEDFLAGS)" < $< > $@
+
+piggz: piggy
+	bzip2 -c9 $< > $@
+
+piggy: $(SYSTEM)
+	$(OBJCOPY) $< $@
+
+data.o: data.lds data.image
+	$(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary data.image -b elf32-tradlittlemips
+
+data.lds:
+	@echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
+
+data.image: decompress_bunzip2.image
+	$(OBJCOPY) $< $@
+
+decompress_bunzip2.image: decompress_bunzip2.lds decompress_bunzip2.o
+	$(LD) -static --gc-sections -no-warn-mismatch -T decompress_bunzip2.lds -o $@ decompress_bunzip2.o
+
+decompress_bunzip2.lds: decompress_bunzip2.lds.in Makefile
+	@sed "$(SEDFLAGS)" < $< > $@
+
+mrproper: clean
+
+clean:
+	rm -f vmlinux vmlinuz piggz piggy *.lds *.o \
+		bzLoader bzLoaderImage bzLoaderImage.gz bzImage \
+		data.lds data.image \
+		decompress_bunzip2.lds decompress_bunzip2.image
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/README.mjn3 b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/README.mjn3
new file mode 100644
index 000000000..0e93e55f9
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/README.mjn3
@@ -0,0 +1,20 @@
+
+FIRST... See the dedication in the decompress_bunzip2.c file as it applies
+here too.  Donations to hospice in Toni's memory would be appreciated.
+
+As far as the code goes... the bzImage is just a bzip'd kernel image with
+a small gzip'd decompressor/loader stuck on front.  CFE ungzip's the loader
+app which then relocates the bunzip decompressor into higher memory and
+bunzip's the compressed kernel directly from flash.  Then the instruction
+cache is flushed (to remove traces of the loader) and the kernel is executed.
+
+Of course, a better approach would be to add bunzip decompression to CFE.
+
+Notes...
+  1) Instruction cache size and linesize are hardcoded (see the #warning).
+  2) Currently assumes at least 16M or ram.
+  3) Thanks to Mike Baker   mbm at alt dot org  for bouncing ideas back
+     and forth as well as diagnosing the last (icache) bug.
+
+Manuel Novoa III   <mjn3@codepoet.org>        May 30, 2004
+
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/data.lds b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/data.lds
new file mode 100644
index 000000000..ec48b2dfd
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/data.lds
@@ -0,0 +1 @@
+SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.c
new file mode 100644
index 000000000..9a120796f
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.c
@@ -0,0 +1,758 @@
+/* vi: set sw=4 ts=4: */
+/*	Small bzip2 deflate implementation, by Rob Landley (rob@landley.net).
+
+	Based on bzip2 decompression code by Julian R Seward (jseward@acm.org),
+	which also acknowledges contributions by Mike Burrows, David Wheeler,
+	Peter Fenwick, Alistair Moffat, Radford Neal, Ian H. Witten,
+	Robert Sedgewick, and Jon L. Bentley.
+
+	This code is licensed under the LGPLv2:
+		LGPL (http://www.gnu.org/copyleft/lgpl.html
+*/
+
+/*
+	Size and speed optimizations by Manuel Novoa III  (mjn3@codepoet.org).
+
+	More efficient reading of huffman codes, a streamlined read_bunzip()
+	function, and various other tweaks.  In (limited) tests, approximately
+	20% faster than bzcat on x86 and about 10% faster on arm.
+
+	Note that about 2/3 of the time is spent in read_unzip() reversing
+	the Burrows-Wheeler transformation.  Much of that time is delay
+	resulting from cache misses.
+
+	I would ask that anyone benefiting from this work, especially those
+	using it in commercial products, consider making a donation to my local
+	non-profit hospice organization in the name of the woman I loved, who
+	passed away Feb. 12, 2003.
+
+		In memory of Toni W. Hagan
+
+		Hospice of Acadiana, Inc.
+		2600 Johnston St., Suite 200
+		Lafayette, LA 70503-3240
+
+		Phone (337) 232-1234 or 1-800-738-2226
+		Fax   (337) 232-1297
+
+		http://www.hospiceacadiana.com/
+
+	Manuel
+ */
+
+/* May 21, 2004        Manuel Novoa III
+ * Modified to load a bzip'd kernel on the linksys wrt54g.
+ *
+ * May 30, 2004
+ * Further size reduction via inlining and disabling len check code.
+ */
+
+/**********************************************************************/
+
+/* Note... the LED code is specific to the v2.0 (and GS?) unit. */
+#undef  ENABLE_LEDS
+/* #define ENABLE_LEDS  1 */
+
+/* Do we want to bother with checking the bzip'd data for errors? */
+#undef  ENABLE_BUNZIP_CHECKING
+/* #define ENABLE_BUNZIP_CHECKING  1 */
+
+/**********************************************************************/
+/* #include <bcm4710.h> */
+#define BCM4710_FLASH		0x1fc00000	/* Flash */
+
+#define KSEG0                   0x80000000
+#define KSEG1                   0xa0000000
+
+#define KSEG1ADDR(a)            ((((unsigned)(a)) & 0x1fffffffU) | KSEG1)
+
+/* The following cache code was taken from the file bcm4710_cache.h
+ * which was necessarily GPL as it was used to build the linksys
+ * kernel for the wrt54g. */
+
+#warning icache [l]size hardcoded
+
+#define icache_size				8192
+#define ic_lsize				  16
+
+#define Index_Invalidate_I		0x00
+
+#define cache_unroll(base,op)	\
+	__asm__ __volatile__(		\
+		".set noreorder;\n"		\
+		".set mips3;\n"			\
+		"cache %1, (%0);\n"		\
+		".set mips0;\n"			\
+		".set reorder\n"		\
+		:						\
+		: "r" (base),			\
+		  "i" (op));
+
+static __inline__ void blast_icache(void)
+{
+	unsigned long start = KSEG0;
+	unsigned long end = (start + icache_size);
+
+	while(start < end) {
+		cache_unroll(start,Index_Invalidate_I);
+		start += ic_lsize;
+	}
+}
+
+/**********************************************************************/
+#ifndef INT_MAX
+#define INT_MAX (((1 << 30)-1)*2 + 1)
+#endif
+/**********************************************************************/
+#ifdef ENABLE_BUNZIP_CHECKING
+
+#define REBOOT		do {} while (1)
+
+#else
+
+#define REBOOT		((void) 0)
+
+#endif
+/**********************************************************************/
+#ifdef ENABLE_LEDS
+
+#define LED_POWER_ON		0x02 /* OFF == flashing */
+#define LED_DMZ_OFF			0x80
+#define LED_WLAN_OFF		0x01
+
+#define LED_CODE_0			(LED_POWER_ON | LED_DMZ_OFF | LED_WLAN_OFF)
+#define LED_CODE_1			(LED_POWER_ON | LED_DMZ_OFF)
+#define LED_CODE_2			(LED_POWER_ON               | LED_WLAN_OFF)
+#define LED_CODE_3			(LED_POWER_ON)
+
+#define SET_LED_ERROR(X) \
+	do { \
+	*(volatile u8*)(KSEG1ADDR(0x18000064))=(X & ~LED_POWER_ON); \
+	*(volatile u8*)(KSEG1ADDR(0x18000068))=0; /* Disable changes */ \
+	REBOOT; \
+	} while (0)
+
+#define SET_LED(X)	*(volatile u8*)(KSEG1ADDR(0x18000064))=X;
+
+
+typedef unsigned char u8;
+
+#else
+
+#define SET_LED_ERROR(X)		REBOOT
+#define SET_LED(X)				((void)0)
+
+#endif
+
+/**********************************************************************/
+
+/* Constants for huffman coding */
+#define MAX_GROUPS			6
+#define GROUP_SIZE   		50		/* 64 would have been more efficient */
+#define MAX_HUFCODE_BITS 	20		/* Longest huffman code allowed */
+#define MAX_SYMBOLS 		258		/* 256 literals + RUNA + RUNB */
+#define SYMBOL_RUNA			0
+#define SYMBOL_RUNB			1
+
+/* Status return values */
+#define RETVAL_OK						0
+#define RETVAL_LAST_BLOCK				(-1)
+#define RETVAL_NOT_BZIP_DATA			(-2)
+#define RETVAL_UNEXPECTED_INPUT_EOF		(-3)
+#define RETVAL_UNEXPECTED_OUTPUT_EOF	(-4)
+#define RETVAL_DATA_ERROR				(-5)
+#define RETVAL_OUT_OF_MEMORY			(-6)
+#define RETVAL_OBSOLETE_INPUT			(-7)
+
+/* Other housekeeping constants */
+#define IOBUF_SIZE			4096
+
+/* This is what we know about each huffman coding group */
+struct group_data {
+	/* We have an extra slot at the end of limit[] for a sentinal value. */
+	int limit[MAX_HUFCODE_BITS+1],base[MAX_HUFCODE_BITS],permute[MAX_SYMBOLS];
+	int minLen, maxLen;
+};
+
+/* Structure holding all the housekeeping data, including IO buffers and
+   memory that persists between calls to bunzip */
+typedef struct {
+	/* State for interrupting output loop */
+	int writeCopies,writePos,writeRunCountdown,writeCount,writeCurrent;
+	/* I/O tracking data (file handles, buffers, positions, etc.) */
+#if defined(ENABLE_BUNZIP_CHECKING)
+	int /*in_fd,out_fd,*/ inbufCount,inbufPos /*,outbufPos*/;
+#else
+	int /*in_fd,out_fd,inbufCount,*/ inbufPos /*,outbufPos*/;
+#endif
+	unsigned char *inbuf /*,*outbuf*/;
+	unsigned int inbufBitCount, inbufBits;
+	/* The CRC values stored in the block header and calculated from the data */
+#ifdef ENABLE_BUNZIP_CHECKING
+	unsigned int crc32Table[256],headerCRC, totalCRC, writeCRC;
+	/* Intermediate buffer and its size (in bytes) */
+	unsigned int *dbuf, dbufSize;
+#else
+	unsigned int *dbuf;
+#endif
+	/* These things are a bit too big to go on the stack */
+	unsigned char selectors[32768];			/* nSelectors=15 bits */
+	struct group_data groups[MAX_GROUPS];	/* huffman coding tables */
+} bunzip_data;
+
+static int get_next_block(bunzip_data *bd);
+
+/**********************************************************************/
+/* Undo burrows-wheeler transform on intermediate buffer to produce output.
+   If start_bunzip was initialized with out_fd=-1, then up to len bytes of
+   data are written to outbuf.  Return value is number of bytes written or
+   error (all errors are negative numbers).  If out_fd!=-1, outbuf and len
+   are ignored, data is written to out_fd and return is RETVAL_OK or error.
+*/
+
+static __inline__ int read_bunzip(bunzip_data *bd, char *outbuf, int len)
+{
+	const unsigned int *dbuf;
+	int pos,current,previous,gotcount;
+#ifdef ENABLE_LEDS
+	int led_state = LED_CODE_2;
+#endif
+
+	/* If last read was short due to end of file, return last block now */
+	if(bd->writeCount<0) return bd->writeCount;
+
+	gotcount = 0;
+	dbuf=bd->dbuf;
+	pos=bd->writePos;
+	current=bd->writeCurrent;
+
+	/* We will always have pending decoded data to write into the output
+	   buffer unless this is the very first call (in which case we haven't
+	   huffman-decoded a block into the intermediate buffer yet). */
+
+	if (bd->writeCopies) {
+		/* Inside the loop, writeCopies means extra copies (beyond 1) */
+		--bd->writeCopies;
+		/* Loop outputting bytes */
+		for(;;) {
+#if 0		/* Might want to enable this if passing a limiting size. */
+/* #ifdef ENABLE_BUNZIP_CHECKING */
+			/* If the output buffer is full, snapshot state and return */
+			if(gotcount >= len) {
+				bd->writePos=pos;
+				bd->writeCurrent=current;
+				bd->writeCopies++;
+				return len;
+			}
+#endif
+			/* Write next byte into output buffer, updating CRC */
+			outbuf[gotcount++] = current;
+#ifdef ENABLE_BUNZIP_CHECKING
+			bd->writeCRC=(((bd->writeCRC)<<8)
+						  ^bd->crc32Table[((bd->writeCRC)>>24)^current]);
+#endif
+			/* Loop now if we're outputting multiple copies of this byte */
+			if (bd->writeCopies) {
+				--bd->writeCopies;
+				continue;
+			}
+decode_next_byte:
+			if (!bd->writeCount--) break;
+			/* Follow sequence vector to undo Burrows-Wheeler transform */
+			previous=current;
+			pos=dbuf[pos];
+			current=pos&0xff;
+			pos>>=8;
+			/* After 3 consecutive copies of the same byte, the 4th is a repeat
+			   count.  We count down from 4 instead
+			 * of counting up because testing for non-zero is faster */
+			if(--bd->writeRunCountdown) {
+				if(current!=previous) bd->writeRunCountdown=4;
+			} else {
+				/* We have a repeated run, this byte indicates the count */
+				bd->writeCopies=current;
+				current=previous;
+				bd->writeRunCountdown=5;
+				/* Sometimes there are just 3 bytes (run length 0) */
+				if(!bd->writeCopies) goto decode_next_byte;
+				/* Subtract the 1 copy we'd output anyway to get extras */
+				--bd->writeCopies;
+			}
+		}
+#ifdef ENABLE_BUNZIP_CHECKING
+		/* Decompression of this block completed successfully */
+		bd->writeCRC=~bd->writeCRC;
+		bd->totalCRC=((bd->totalCRC<<1) | (bd->totalCRC>>31)) ^ bd->writeCRC;
+		/* If this block had a CRC error, force file level CRC error. */
+		if(bd->writeCRC!=bd->headerCRC) {
+			bd->totalCRC=bd->headerCRC+1;
+			return RETVAL_LAST_BLOCK;
+		}
+#endif
+	}
+
+#ifdef ENABLE_LEDS
+	if (led_state == LED_CODE_2) {
+		led_state = LED_CODE_1;
+	} else {
+		led_state = LED_CODE_2;
+	}
+	SET_LED(led_state);
+#endif
+
+	/* Refill the intermediate buffer by huffman-decoding next block of input */
+	/* (previous is just a convenient unused temp variable here) */
+	previous=get_next_block(bd);
+#ifdef ENABLE_BUNZIP_CHECKING
+	if(previous) {
+		bd->writeCount=previous;
+		return (previous!=RETVAL_LAST_BLOCK) ? previous : gotcount;
+	}
+	bd->writeCRC=0xffffffffUL;
+#else
+	if (previous) return gotcount;
+#endif
+	pos=bd->writePos;
+	current=bd->writeCurrent;
+	goto decode_next_byte;
+}
+
+/**********************************************************************/
+/* WARNING!!! Must be the first function!!! */
+
+void load_and_run(unsigned long ra)
+{
+	int dbuf[900000];	/* Maximum requred */
+	bunzip_data bd;
+
+	unsigned int i;
+#ifdef ENABLE_BUNZIP_CHECKING
+	unsigned int j, c;
+	int r;
+#endif
+	char *p;
+
+#ifdef ENABLE_LEDS
+	*(volatile u8*)(KSEG1ADDR(0x18000068))=0x83; /* Allow all bits to change */
+	SET_LED(LED_CODE_0);
+#endif
+
+/* 	memset(&bd,0,sizeof(bunzip_data)); */
+	p = (char *) &bd;
+	for (i = 0 ; i < sizeof(bunzip_data) ; i++) {
+		p[i] = 0;
+	}
+
+	/* Find start of flash and adjust for pmon partition. */
+	p = ((char *) KSEG1ADDR(BCM4710_FLASH)) + 0x10000;
+
+	SET_LED(LED_CODE_1);
+	/* Find the start of the bzip'd data. */
+	while ((p[0]!='B') || (p[1]!='Z') || (p[2]!='h') /*|| (p[3]!='9')*/) ++p;
+	SET_LED(LED_CODE_2);
+
+	/* Setup input buffer */
+	bd.inbuf=p+4;		/* Skip the "BZh9" header. */
+#ifdef ENABLE_BUNZIP_CHECKING
+	bd.inbufCount=INT_MAX;
+	/* Init the CRC32 table (big endian) */
+	for(i=0;i<256;i++) {
+		c=i<<24;
+		for(j=8;j;j--)
+			c=c&0x80000000 ? (c<<1)^0x04c11db7 : (c<<1);
+		bd.crc32Table[i]=c;
+	}
+
+	bd.dbufSize=900000;
+#endif
+	bd.dbuf=dbuf;
+
+	/* Actually do the bunzip */
+#ifdef ENABLE_BUNZIP_CHECKING
+	r = read_bunzip(&bd, ((char *) LOADADDR), INT_MAX);
+	if (r > 0) {
+		if (bd.headerCRC==bd.totalCRC) {
+			SET_LED(LED_CODE_3);
+			{
+				int code = LED_WLAN_OFF;
+				int i, j;
+				for (j=0 ; j < 4 ; j++) {
+					for (i=0; i<(1<<27) ; i++) {}
+					SET_LED(code);
+					code ^= LED_WLAN_OFF;
+				}
+			}
+			blast_icache();
+			/* Jump to load address */
+			((void (*)(void)) LOADADDR)();
+		} else {
+			SET_LED_ERROR(LED_CODE_3);
+		}
+	} else {
+		SET_LED_ERROR(LED_CODE_2);
+	}
+#else
+	read_bunzip(&bd, ((char *) LOADADDR), INT_MAX);
+	blast_icache();
+	/* Jump to load address */
+	((void (*)(void)) LOADADDR)();
+#endif
+}
+
+/**********************************************************************/
+/* Return the next nnn bits of input.  All reads from the compressed input
+   are done through this function.  All reads are big endian */
+static unsigned int get_bits(bunzip_data *bd, char bits_wanted)
+{
+	unsigned int bits=0;
+
+	/* If we need to get more data from the byte buffer, do so.  (Loop getting
+	   one byte at a time to enforce endianness and avoid unaligned access.) */
+	while (bd->inbufBitCount<bits_wanted) {
+		/* If we need to read more data from file into byte buffer, do so */
+#ifdef ENABLE_BUNZIP_CHECKING
+		if(bd->inbufPos==bd->inbufCount) {
+			SET_LED_ERROR(LED_CODE_0);
+		}
+#endif
+		/* Avoid 32-bit overflow (dump bit buffer to top of output) */
+		if(bd->inbufBitCount>=24) {
+			bits=bd->inbufBits&((1<<bd->inbufBitCount)-1);
+			bits_wanted-=bd->inbufBitCount;
+			bits<<=bits_wanted;
+			bd->inbufBitCount=0;
+		}
+		/* Grab next 8 bits of input from buffer. */
+		bd->inbufBits=(bd->inbufBits<<8)|bd->inbuf[bd->inbufPos++];
+		bd->inbufBitCount+=8;
+	}
+	/* Calculate result */
+	bd->inbufBitCount-=bits_wanted;
+	bits|=(bd->inbufBits>>bd->inbufBitCount)&((1<<bits_wanted)-1);
+
+	return bits;
+}
+
+/* Unpacks the next block and sets up for the inverse burrows-wheeler step. */
+
+static int get_next_block(bunzip_data *bd)
+{
+	struct group_data *hufGroup;
+#ifdef ENABLE_BUNZIP_CHECKING
+	int dbufCount,nextSym,dbufSize,groupCount,*base,*limit,selector,
+		i,j,k,t,runPos,symCount,symTotal,nSelectors,byteCount[256];
+#else
+	int dbufCount,nextSym,/*dbufSize,*/groupCount,*base,*limit,selector,
+		i,j,k,t,runPos,symCount,symTotal,nSelectors,byteCount[256];
+#endif
+	unsigned char uc, symToByte[256], mtfSymbol[256], *selectors;
+	unsigned int *dbuf,origPtr;
+
+	dbuf=bd->dbuf;
+#ifdef ENABLE_BUNZIP_CHECKING
+	dbufSize=bd->dbufSize;
+#endif
+	selectors=bd->selectors;
+	/* Read in header signature and CRC, then validate signature.
+	   (last block signature means CRC is for whole file, return now) */
+	i = get_bits(bd,24);
+	j = get_bits(bd,24);
+#ifdef ENABLE_BUNZIP_CHECKING
+	bd->headerCRC=get_bits(bd,32);
+	if ((i == 0x177245) && (j == 0x385090)) return RETVAL_LAST_BLOCK;
+	if ((i != 0x314159) || (j != 0x265359)) return RETVAL_NOT_BZIP_DATA;
+	/* We can add support for blockRandomised if anybody complains.  There was
+	   some code for this in busybox 1.0.0-pre3, but nobody ever noticed that
+	   it didn't actually work. */
+	if(get_bits(bd,1)) return RETVAL_OBSOLETE_INPUT;
+	if((origPtr=get_bits(bd,24)) > dbufSize) return RETVAL_DATA_ERROR;
+#else
+	get_bits(bd,32);
+	if ((i == 0x177245) && (j == 0x385090)) return RETVAL_LAST_BLOCK;
+	get_bits(bd,1);
+	origPtr=get_bits(bd,24);
+#endif
+	/* mapping table: if some byte values are never used (encoding things
+	   like ascii text), the compression code removes the gaps to have fewer
+	   symbols to deal with, and writes a sparse bitfield indicating which
+	   values were present.  We make a translation table to convert the symbols
+	   back to the corresponding bytes. */
+	t=get_bits(bd, 16);
+	symTotal=0;
+	for (i=0;i<16;i++) {
+		if(t&(1<<(15-i))) {
+			k=get_bits(bd,16);
+			for(j=0;j<16;j++)
+				if(k&(1<<(15-j))) symToByte[symTotal++]=(16*i)+j;
+		}
+	}
+	/* How many different huffman coding groups does this block use? */
+	groupCount=get_bits(bd,3);
+#ifdef ENABLE_BUNZIP_CHECKING
+	if (groupCount<2 || groupCount>MAX_GROUPS) return RETVAL_DATA_ERROR;
+#endif
+	/* nSelectors: Every GROUP_SIZE many symbols we select a new huffman coding
+	   group.  Read in the group selector list, which is stored as MTF encoded
+	   bit runs.  (MTF=Move To Front, as each value is used it's moved to the
+	   start of the list.) */
+#ifdef ENABLE_BUNZIP_CHECKING
+	if(!(nSelectors=get_bits(bd, 15))) return RETVAL_DATA_ERROR;
+#else
+	nSelectors=get_bits(bd, 15);
+#endif
+	for(i=0; i<groupCount; i++) mtfSymbol[i] = i;
+	for(i=0; i<nSelectors; i++) {
+		/* Get next value */
+#ifdef ENABLE_BUNZIP_CHECKING
+		for(j=0;get_bits(bd,1);j++) if (j>=groupCount) return RETVAL_DATA_ERROR;
+#else
+		for(j=0;get_bits(bd,1);j++) ;
+#endif
+		/* Decode MTF to get the next selector */
+		uc = mtfSymbol[j];
+		for(;j;j--) mtfSymbol[j] = mtfSymbol[j-1];
+		mtfSymbol[0]=selectors[i]=uc;
+	}
+	/* Read the huffman coding tables for each group, which code for symTotal
+	   literal symbols, plus two run symbols (RUNA, RUNB) */
+	symCount=symTotal+2;
+	for (j=0; j<groupCount; j++) {
+		unsigned char length[MAX_SYMBOLS],temp[MAX_HUFCODE_BITS+1];
+		int	minLen,	maxLen, pp;
+		/* Read huffman code lengths for each symbol.  They're stored in
+		   a way similar to mtf; record a starting value for the first symbol,
+		   and an offset from the previous value for everys symbol after that.
+		   (Subtracting 1 before the loop and then adding it back at the end is
+		   an optimization that makes the test inside the loop simpler: symbol
+		   length 0 becomes negative, so an unsigned inequality catches it.) */
+		t=get_bits(bd, 5)-1;
+		for (i = 0; i < symCount; i++) {
+			for(;;) {
+#ifdef ENABLE_BUNZIP_CHECKING
+				if (((unsigned)t) > (MAX_HUFCODE_BITS-1))
+					return RETVAL_DATA_ERROR;
+#endif
+				/* If first bit is 0, stop.  Else second bit indicates whether
+				   to increment or decrement the value.  Optimization: grab 2
+				   bits and unget the second if the first was 0. */
+				k = get_bits(bd,2);
+				if (k < 2) {
+					bd->inbufBitCount++;
+					break;
+				}
+				/* Add one if second bit 1, else subtract 1.  Avoids if/else */
+				t+=(((k+1)&2)-1);
+			}
+			/* Correct for the initial -1, to get the final symbol length */
+			length[i]=t+1;
+		}
+		/* Find largest and smallest lengths in this group */
+		minLen=maxLen=length[0];
+		for(i = 1; i < symCount; i++) {
+			if(length[i] > maxLen) maxLen = length[i];
+			else if(length[i] < minLen) minLen = length[i];
+		}
+		/* Calculate permute[], base[], and limit[] tables from length[].
+		 *
+		 * permute[] is the lookup table for converting huffman coded symbols
+		 * into decoded symbols.  base[] is the amount to subtract from the
+		 * value of a huffman symbol of a given length when using permute[].
+		 *
+		 * limit[] indicates the largest numerical value a symbol with a given
+		 * number of bits can have.  This is how the huffman codes can vary in
+		 * length: each code with a value>limit[length] needs another bit.
+		 */
+		hufGroup=bd->groups+j;
+		hufGroup->minLen = minLen;
+		hufGroup->maxLen = maxLen;
+		/* Note that minLen can't be smaller than 1, so we adjust the base
+		   and limit array pointers so we're not always wasting the first
+		   entry.  We do this again when using them (during symbol decoding).*/
+		base=hufGroup->base-1;
+		limit=hufGroup->limit-1;
+		/* Calculate permute[].  Concurently, initialize temp[] and limit[]. */
+		pp=0;
+		for(i=minLen;i<=maxLen;i++) {
+			temp[i]=limit[i]=0;
+			for(t=0;t<symCount;t++) 
+				if(length[t]==i) hufGroup->permute[pp++] = t;
+		}
+		/* Count symbols coded for at each bit length */
+		for (i=0;i<symCount;i++) temp[length[i]]++;
+		/* Calculate limit[] (the largest symbol-coding value at each bit
+		 * length, which is (previous limit<<1)+symbols at this level), and
+		 * base[] (number of symbols to ignore at each bit length, which is
+		 * limit minus the cumulative count of symbols coded for already). */
+		pp=t=0;
+		for (i=minLen; i<maxLen; i++) {
+			pp+=temp[i];
+			/* We read the largest possible symbol size and then unget bits
+			   after determining how many we need, and those extra bits could
+			   be set to anything.  (They're noise from future symbols.)  At
+			   each level we're really only interested in the first few bits,
+			   so here we set all the trailing to-be-ignored bits to 1 so they
+			   don't affect the value>limit[length] comparison. */
+			limit[i]= (pp << (maxLen - i)) - 1;
+			pp<<=1;
+			base[i+1]=pp-(t+=temp[i]);
+		}
+		limit[maxLen+1] = INT_MAX; /* Sentinal value for reading next sym. */
+		limit[maxLen]=pp+temp[maxLen]-1;
+		base[minLen]=0;
+	}
+	/* We've finished reading and digesting the block header.  Now read this
+	   block's huffman coded symbols from the file and undo the huffman coding
+	   and run length encoding, saving the result into dbuf[dbufCount++]=uc */
+
+	/* Initialize symbol occurrence counters and symbol Move To Front table */
+	for(i=0;i<256;i++) {
+		byteCount[i] = 0;
+		mtfSymbol[i]=(unsigned char)i;
+	}
+	/* Loop through compressed symbols. */
+	runPos=dbufCount=symCount=selector=0;
+	for(;;) {
+		/* Determine which huffman coding group to use. */
+		if(!(symCount--)) {
+			symCount=GROUP_SIZE-1;
+#ifdef ENABLE_BUNZIP_CHECKING
+			if(selector>=nSelectors) return RETVAL_DATA_ERROR;
+#endif
+			hufGroup=bd->groups+selectors[selector++];
+			base=hufGroup->base-1;
+			limit=hufGroup->limit-1;
+		}
+		/* Read next huffman-coded symbol. */
+		/* Note: It is far cheaper to read maxLen bits and back up than it is
+		   to read minLen bits and then an additional bit at a time, testing
+		   as we go.  Because there is a trailing last block (with file CRC),
+		   there is no danger of the overread causing an unexpected EOF for a
+		   valid compressed file.  As a further optimization, we do the read
+		   inline (falling back to a call to get_bits if the buffer runs
+		   dry).  The following (up to got_huff_bits:) is equivalent to
+		   j=get_bits(bd,hufGroup->maxLen);
+		 */
+		while (bd->inbufBitCount<hufGroup->maxLen) {
+#ifdef ENABLE_BUNZIP_CHECKING
+			if(bd->inbufPos==bd->inbufCount) {
+				j = get_bits(bd,hufGroup->maxLen);
+				goto got_huff_bits;
+			}
+#endif
+			bd->inbufBits=(bd->inbufBits<<8)|bd->inbuf[bd->inbufPos++];
+			bd->inbufBitCount+=8;
+		};
+		bd->inbufBitCount-=hufGroup->maxLen;
+		j = (bd->inbufBits>>bd->inbufBitCount)&((1<<hufGroup->maxLen)-1);
+got_huff_bits:
+		/* Figure how how many bits are in next symbol and unget extras */
+		i=hufGroup->minLen;
+		while(j>limit[i]) ++i;
+		bd->inbufBitCount += (hufGroup->maxLen - i);
+		/* Huffman decode value to get nextSym (with bounds checking) */
+#ifdef ENABLE_BUNZIP_CHECKING
+		if ((i > hufGroup->maxLen)
+			|| (((unsigned)(j=(j>>(hufGroup->maxLen-i))-base[i]))
+				>= MAX_SYMBOLS))
+			return RETVAL_DATA_ERROR;
+#else
+		j=(j>>(hufGroup->maxLen-i))-base[i];
+#endif
+		nextSym = hufGroup->permute[j];
+		/* We have now decoded the symbol, which indicates either a new literal
+		   byte, or a repeated run of the most recent literal byte.  First,
+		   check if nextSym indicates a repeated run, and if so loop collecting
+		   how many times to repeat the last literal. */
+		if (((unsigned)nextSym) <= SYMBOL_RUNB) { /* RUNA or RUNB */
+			/* If this is the start of a new run, zero out counter */
+			if(!runPos) {
+				runPos = 1;
+				t = 0;
+			}
+			/* Neat trick that saves 1 symbol: instead of or-ing 0 or 1 at
+			   each bit position, add 1 or 2 instead.  For example,
+			   1011 is 1<<0 + 1<<1 + 2<<2.  1010 is 2<<0 + 2<<1 + 1<<2.
+			   You can make any bit pattern that way using 1 less symbol than
+			   the basic or 0/1 method (except all bits 0, which would use no
+			   symbols, but a run of length 0 doesn't mean anything in this
+			   context).  Thus space is saved. */
+			t += (runPos << nextSym); /* +runPos if RUNA; +2*runPos if RUNB */
+			runPos <<= 1;
+			continue;
+		}
+		/* When we hit the first non-run symbol after a run, we now know
+		   how many times to repeat the last literal, so append that many
+		   copies to our buffer of decoded symbols (dbuf) now.  (The last
+		   literal used is the one at the head of the mtfSymbol array.) */
+		if(runPos) {
+			runPos=0;
+#ifdef ENABLE_BUNZIP_CHECKING
+			if(dbufCount+t>=dbufSize) return RETVAL_DATA_ERROR;
+#endif
+
+			uc = symToByte[mtfSymbol[0]];
+			byteCount[uc] += t;
+			while(t--) dbuf[dbufCount++]=uc;
+		}
+		/* Is this the terminating symbol? */
+		if(nextSym>symTotal) break;
+		/* At this point, nextSym indicates a new literal character.  Subtract
+		   one to get the position in the MTF array at which this literal is
+		   currently to be found.  (Note that the result can't be -1 or 0,
+		   because 0 and 1 are RUNA and RUNB.  But another instance of the
+		   first symbol in the mtf array, position 0, would have been handled
+		   as part of a run above.  Therefore 1 unused mtf position minus
+		   2 non-literal nextSym values equals -1.) */
+#ifdef ENABLE_BUNZIP_CHECKING
+		if(dbufCount>=dbufSize) return RETVAL_DATA_ERROR;
+#endif
+		i = nextSym - 1;
+		uc = mtfSymbol[i];
+		/* Adjust the MTF array.  Since we typically expect to move only a
+		 * small number of symbols, and are bound by 256 in any case, using
+		 * memmove here would typically be bigger and slower due to function
+		 * call overhead and other assorted setup costs. */
+		do {
+			mtfSymbol[i] = mtfSymbol[i-1];
+		} while (--i);
+		mtfSymbol[0] = uc;
+		uc=symToByte[uc];
+		/* We have our literal byte.  Save it into dbuf. */
+		byteCount[uc]++;
+		dbuf[dbufCount++] = (unsigned int)uc;
+	}
+	/* At this point, we've read all the huffman-coded symbols (and repeated
+       runs) for this block from the input stream, and decoded them into the
+	   intermediate buffer.  There are dbufCount many decoded bytes in dbuf[].
+	   Now undo the Burrows-Wheeler transform on dbuf.
+	   See http://dogma.net/markn/articles/bwt/bwt.htm
+	 */
+	/* Turn byteCount into cumulative occurrence counts of 0 to n-1. */
+	j=0;
+	for(i=0;i<256;i++) {
+		k=j+byteCount[i];
+		byteCount[i] = j;
+		j=k;
+	}
+	/* Figure out what order dbuf would be in if we sorted it. */
+	for (i=0;i<dbufCount;i++) {
+		uc=(unsigned char)(dbuf[i] & 0xff);
+		dbuf[byteCount[uc]] |= (i << 8);
+		byteCount[uc]++;
+	}
+	/* Decode first byte by hand to initialize "previous" byte.  Note that it
+	   doesn't get output, and if the first three characters are identical
+	   it doesn't qualify as a run (hence writeRunCountdown=5). */
+	if(dbufCount) {
+#ifdef ENABLE_BUNZIP_CHECKING
+		if(origPtr>=dbufCount) return RETVAL_DATA_ERROR;
+#endif
+		bd->writePos=dbuf[origPtr];
+	    bd->writeCurrent=(unsigned char)(bd->writePos&0xff);
+		bd->writePos>>=8;
+		bd->writeRunCountdown=5;
+	}
+	bd->writeCount=dbufCount;
+
+	return RETVAL_OK;
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds
new file mode 100644
index 000000000..6a91b49c2
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds
@@ -0,0 +1,17 @@
+OUTPUT_ARCH(mips)
+ENTRY(load_and_run)
+SECTIONS {
+	. = 0x81000000-0x4000;
+	.text : {
+		*(.text)
+		*(.rodata)
+	}
+
+	.data : {
+		*(.data)
+	}
+
+	.bss : {
+		*(.bss)
+	}
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds.in b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds.in
new file mode 100644
index 000000000..95cf83ebd
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/decompress_bunzip2.lds.in
@@ -0,0 +1,17 @@
+OUTPUT_ARCH(mips)
+ENTRY(load_and_run)
+SECTIONS {
+	. = BZ_TEXT_START;
+	.text : {
+		*(.text)
+		*(.rodata)
+	}
+
+	.data : {
+		*(.data)
+	}
+
+	.bss : {
+		*(.bss)
+	}
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/head.S b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/head.S
new file mode 100644
index 000000000..c3ecdc47f
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/head.S
@@ -0,0 +1,26 @@
+/* Copyright 2004   Manuel Novoa III (mjn3@codepoet.org) */
+/* Licensed under the linux kernel's version of the GPL. */
+
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+	.text
+	LEAF(startup)
+	.set noreorder
+
+	li	t1, BZ_TEXT_START
+	add	a0, t1, 0
+	la      a1, code_start
+	la	a2, code_stop
+$L1:
+	lw	t0, 0(a1)
+	sw	t0, 0(a0)
+	add	a1, 4
+	add	a0, 4
+	blt	a1, a2, $L1
+
+	add	sp, t1, -4
+	jal	t1
+	
+	.set reorder
+	END(startup)
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds
new file mode 100644
index 000000000..9d95adbfa
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds
@@ -0,0 +1,17 @@
+OUTPUT_ARCH(mips)
+ENTRY(startup)
+SECTIONS {
+	. = 0x80001000;
+	.text : {
+		*(.text)
+		*(.rodata)
+	}
+
+	.data : {
+		*(.data)
+	}
+
+	.bss : {
+		*(.bss)
+	}
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds.in b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds.in
new file mode 100644
index 000000000..20f2ea98e
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/vmlinux.lds.in
@@ -0,0 +1,17 @@
+OUTPUT_ARCH(mips)
+ENTRY(startup)
+SECTIONS {
+	. = TEXT_START;
+	.text : {
+		*(.text)
+		*(.rodata)
+	}
+
+	.data : {
+		*(.data)
+	}
+
+	.bss : {
+		*(.bss)
+	}
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/gpio.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/gpio.c
new file mode 100644
index 000000000..d20b76333
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/gpio.c
@@ -0,0 +1,158 @@
+/*
+ * GPIO char driver
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <asm/uaccess.h>
+
+#include <typedefs.h>
+#include <bcmutils.h>
+#include <sbutils.h>
+#include <bcmdevs.h>
+
+static void *gpio_sbh;
+static int gpio_major;
+static devfs_handle_t gpio_dir;
+static struct {
+	char *name;
+	devfs_handle_t handle;
+} gpio_file[] = {
+	{ "in", NULL },
+	{ "out", NULL },
+	{ "outen", NULL },
+	{ "control", NULL }
+};
+
+static int
+gpio_open(struct inode *inode, struct file * file)
+{
+	if (MINOR(inode->i_rdev) > ARRAYSIZE(gpio_file))
+		return -ENODEV;
+
+	MOD_INC_USE_COUNT;
+	return 0;
+}
+
+static int
+gpio_release(struct inode *inode, struct file * file)
+{
+	MOD_DEC_USE_COUNT;
+	return 0;
+}
+
+static ssize_t
+gpio_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+	u32 val;
+
+	switch (MINOR(file->f_dentry->d_inode->i_rdev)) {
+	case 0:
+		val = sb_gpioin(gpio_sbh);
+		break;
+	case 1:
+		val = sb_gpioout(gpio_sbh, 0, 0);
+		break;
+	case 2:
+		val = sb_gpioouten(gpio_sbh, 0, 0);
+		break;
+	case 3:
+		val = sb_gpiocontrol(gpio_sbh, 0, 0);
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	if (put_user(val, (u32 *) buf))
+		return -EFAULT;
+
+	return sizeof(val);
+}
+
+static ssize_t
+gpio_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	u32 val;
+
+	if (get_user(val, (u32 *) buf))
+		return -EFAULT;
+
+	switch (MINOR(file->f_dentry->d_inode->i_rdev)) {
+	case 0:
+		return -EACCES;
+	case 1:
+		sb_gpioout(gpio_sbh, ~0, val);
+		break;
+	case 2:
+		sb_gpioouten(gpio_sbh, ~0, val);
+		break;
+	case 3:
+		sb_gpiocontrol(gpio_sbh, ~0, val);
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	return sizeof(val);
+}
+
+static struct file_operations gpio_fops = {
+	owner:		THIS_MODULE,
+	open:		gpio_open,
+	release:	gpio_release,
+	read:		gpio_read,
+	write:		gpio_write,
+};
+
+static int __init
+gpio_init(void)
+{
+	int i;
+
+	if (!(gpio_sbh = sb_kattach()))
+		return -ENODEV;
+
+	sb_gpiosetcore(gpio_sbh);
+
+	if ((gpio_major = devfs_register_chrdev(0, "gpio", &gpio_fops)) < 0)
+		return gpio_major;
+
+	gpio_dir = devfs_mk_dir(NULL, "gpio", NULL);
+
+	for (i = 0; i < ARRAYSIZE(gpio_file); i++) {
+		gpio_file[i].handle = devfs_register(gpio_dir,
+						     gpio_file[i].name,
+						     DEVFS_FL_DEFAULT, gpio_major, i,
+						     S_IFCHR | S_IRUGO | S_IWUGO,
+						     &gpio_fops, NULL);
+	}
+
+	return 0;
+}
+
+static void __exit
+gpio_exit(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAYSIZE(gpio_file); i++)
+		devfs_unregister(gpio_file[i].handle);
+	devfs_unregister(gpio_dir);
+	devfs_unregister_chrdev(gpio_major, "gpio");
+	sb_detach(gpio_sbh);
+}
+
+module_init(gpio_init);
+module_exit(gpio_exit);
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram.c
new file mode 100644
index 000000000..af12ced3f
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram.c
@@ -0,0 +1,317 @@
+/*
+ * NVRAM variable manipulation (common)
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <typedefs.h>
+#include <osl.h>
+#include <bcmendian.h>
+#include <bcmnvram.h>
+#include <bcmutils.h>
+#include <sbsdram.h>
+
+extern struct nvram_tuple * _nvram_realloc(struct nvram_tuple *t, const char *name, const char *value);
+extern void _nvram_free(struct nvram_tuple *t);
+extern int _nvram_read(void *buf);
+
+char * _nvram_get(const char *name);
+int _nvram_set(const char *name, const char *value);
+int _nvram_unset(const char *name);
+int _nvram_getall(char *buf, int count);
+int _nvram_commit(struct nvram_header *header);
+int _nvram_init(void);
+void _nvram_exit(void);
+
+static struct nvram_tuple * nvram_hash[257];
+static struct nvram_tuple * nvram_dead;
+
+/* Free all tuples. Should be locked. */
+static void
+nvram_free(void)
+{
+	uint i;
+	struct nvram_tuple *t, *next;
+
+	/* Free hash table */
+	for (i = 0; i < ARRAYSIZE(nvram_hash); i++) {
+		for (t = nvram_hash[i]; t; t = next) {
+			next = t->next;
+			_nvram_free(t);
+		}
+		nvram_hash[i] = NULL;
+	}
+
+	/* Free dead table */
+	for (t = nvram_dead; t; t = next) {
+		next = t->next;
+		_nvram_free(t);
+	}
+	nvram_dead = NULL;
+
+	/* Indicate to per-port code that all tuples have been freed */
+	_nvram_free(NULL);
+}
+
+/* String hash */
+static INLINE uint
+hash(const char *s)
+{
+	uint hash = 0;
+
+	while (*s)
+		hash = 31 * hash + *s++;
+
+	return hash;
+}
+
+/* (Re)initialize the hash table. Should be locked. */
+static int
+nvram_rehash(struct nvram_header *header)
+{
+	char buf[] = "0xXXXXXXXX", *name, *value, *end, *eq;
+
+	/* (Re)initialize hash table */
+	nvram_free();
+
+	/* Parse and set "name=value\0 ... \0\0" */
+	name = (char *) &header[1];
+	end = (char *) header + NVRAM_SPACE - 2;
+	end[0] = end[1] = '\0';
+	for (; *name; name = value + strlen(value) + 1) {
+		if (!(eq = strchr(name, '=')))
+			break;
+		*eq = '\0';
+		value = eq + 1;
+		_nvram_set(name, value);
+		*eq = '=';
+	}
+
+	/* Set special SDRAM parameters */
+	if (!_nvram_get("sdram_init")) {
+		sprintf(buf, "0x%04X", (uint16)(header->crc_ver_init >> 16));
+		_nvram_set("sdram_init", buf);
+	}
+	if (!_nvram_get("sdram_config")) {
+		sprintf(buf, "0x%04X", (uint16)(header->config_refresh & 0xffff));
+		_nvram_set("sdram_config", buf);
+	}
+	if (!_nvram_get("sdram_refresh")) {
+		sprintf(buf, "0x%04X", (uint16)((header->config_refresh >> 16) & 0xffff));
+		_nvram_set("sdram_refresh", buf);
+	}
+	if (!_nvram_get("sdram_ncdl")) {
+		sprintf(buf, "0x%08X", header->config_ncdl);
+		_nvram_set("sdram_ncdl", buf);
+	}
+
+	return 0;
+}
+
+/* Get the value of an NVRAM variable. Should be locked. */
+char *
+_nvram_get(const char *name)
+{
+	uint i;
+	struct nvram_tuple *t;
+	char *value;
+
+	if (!name)
+		return NULL;
+
+	/* Hash the name */
+	i = hash(name) % ARRAYSIZE(nvram_hash);
+
+	/* Find the associated tuple in the hash table */
+	for (t = nvram_hash[i]; t && strcmp(t->name, name); t = t->next);
+
+	value = t ? t->value : NULL;
+
+	return value;
+}
+
+/* Get the value of an NVRAM variable. Should be locked. */
+int
+_nvram_set(const char *name, const char *value)
+{
+	uint i;
+	struct nvram_tuple *t, *u, **prev;
+
+	/* Hash the name */
+	i = hash(name) % ARRAYSIZE(nvram_hash);
+
+	/* Find the associated tuple in the hash table */
+	for (prev = &nvram_hash[i], t = *prev; t && strcmp(t->name, name); prev = &t->next, t = *prev);
+
+	/* (Re)allocate tuple */
+	if (!(u = _nvram_realloc(t, name, value)))
+		return -12; /* -ENOMEM */
+
+	/* Value reallocated */
+	if (t && t == u)
+		return 0;
+
+	/* Move old tuple to the dead table */
+	if (t) {
+		*prev = t->next;
+		t->next = nvram_dead;
+		nvram_dead = t;
+	}
+
+	/* Add new tuple to the hash table */
+	u->next = nvram_hash[i];
+	nvram_hash[i] = u;
+
+	return 0;
+}
+
+/* Unset the value of an NVRAM variable. Should be locked. */
+int
+_nvram_unset(const char *name)
+{
+	uint i;
+	struct nvram_tuple *t, **prev;
+
+	if (!name)
+		return 0;
+
+	/* Hash the name */
+	i = hash(name) % ARRAYSIZE(nvram_hash);
+
+	/* Find the associated tuple in the hash table */
+	for (prev = &nvram_hash[i], t = *prev; t && strcmp(t->name, name); prev = &t->next, t = *prev);
+
+	/* Move it to the dead table */
+	if (t) {
+		*prev = t->next;
+		t->next = nvram_dead;
+		nvram_dead = t;
+	}
+
+	return 0;
+}
+
+/* Get all NVRAM variables. Should be locked. */
+int
+_nvram_getall(char *buf, int count)
+{
+	uint i;
+	struct nvram_tuple *t;
+	int len = 0;
+
+	bzero(buf, count);
+
+	/* Write name=value\0 ... \0\0 */
+	for (i = 0; i < ARRAYSIZE(nvram_hash); i++) {
+		for (t = nvram_hash[i]; t; t = t->next) {
+			if ((count - len) > (strlen(t->name) + 1 + strlen(t->value) + 1))
+				len += sprintf(buf + len, "%s=%s", t->name, t->value) + 1;
+			else
+				break;
+		}
+	}
+
+	return 0;
+}
+
+/* Regenerate NVRAM. Should be locked. */
+int
+_nvram_commit(struct nvram_header *header)
+{
+	char *init, *config, *refresh, *ncdl;
+	char *ptr, *end;
+	int i;
+	struct nvram_tuple *t;
+	struct nvram_header tmp;
+	uint8 crc;
+
+	/* Regenerate header */
+	header->magic = NVRAM_MAGIC;
+	header->crc_ver_init = (NVRAM_VERSION << 8);
+	if (!(init = _nvram_get("sdram_init")) ||
+	    !(config = _nvram_get("sdram_config")) ||
+	    !(refresh = _nvram_get("sdram_refresh")) ||
+	    !(ncdl = _nvram_get("sdram_ncdl"))) {
+		header->crc_ver_init |= SDRAM_INIT << 16;
+		header->config_refresh = SDRAM_CONFIG;
+		header->config_refresh |= SDRAM_REFRESH << 16;
+		header->config_ncdl = 0;
+	} else {
+		header->crc_ver_init |= (bcm_strtoul(init, NULL, 0) & 0xffff) << 16;
+		header->config_refresh = bcm_strtoul(config, NULL, 0) & 0xffff;
+		header->config_refresh |= (bcm_strtoul(refresh, NULL, 0) & 0xffff) << 16;
+		header->config_ncdl = bcm_strtoul(ncdl, NULL, 0);
+	}
+
+	/* Clear data area */
+	ptr = (char *) header + sizeof(struct nvram_header);
+	bzero(ptr, NVRAM_SPACE - sizeof(struct nvram_header));
+
+	/* Leave space for a double NUL at the end */
+	end = (char *) header + NVRAM_SPACE - 2;
+
+	/* Write out all tuples */
+	for (i = 0; i < ARRAYSIZE(nvram_hash); i++) {
+		for (t = nvram_hash[i]; t; t = t->next) {
+			if ((ptr + strlen(t->name) + 1 + strlen(t->value) + 1) > end)
+				break;
+			ptr += sprintf(ptr, "%s=%s", t->name, t->value) + 1;
+		}
+	}
+
+	/* End with a double NUL */
+	ptr += 2;
+
+	/* Set new length */
+	header->len = ROUNDUP(ptr - (char *) header, 4);
+
+	/* Little-endian CRC8 over the last 11 bytes of the header */
+	tmp.crc_ver_init = htol32(header->crc_ver_init);
+	tmp.config_refresh = htol32(header->config_refresh);
+	tmp.config_ncdl = htol32(header->config_ncdl);
+	crc = crc8((char *) &tmp + 9, sizeof(struct nvram_header) - 9, CRC8_INIT_VALUE);
+
+	/* Continue CRC8 over data bytes */
+	crc = crc8((char *) &header[1], header->len - sizeof(struct nvram_header), crc);
+
+	/* Set new CRC8 */
+	header->crc_ver_init |= crc;
+
+	/* Reinitialize hash table */
+	return nvram_rehash(header);
+}
+
+/* Initialize hash table. Should be locked. */
+int
+_nvram_init(void)
+{
+	struct nvram_header *header;
+	int ret;
+
+	if (!(header = (struct nvram_header *) MALLOC(NVRAM_SPACE))) {
+		printf("nvram_init: out of memory\n");
+		return -12; /* -ENOMEM */
+	}
+
+	if ((ret = _nvram_read(header)) == 0 &&
+	    header->magic == NVRAM_MAGIC)
+		nvram_rehash(header);
+
+	MFREE(header, NVRAM_SPACE);
+	return ret;
+}
+
+/* Free hash table. Should be locked. */
+void
+_nvram_exit(void)
+{
+	nvram_free();
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram_linux.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram_linux.c
new file mode 100644
index 000000000..bbbc1eb73
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/nvram_linux.c
@@ -0,0 +1,638 @@
+/*
+ * NVRAM variable manipulation (Linux kernel half)
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/bootmem.h>
+#include <linux/wrapper.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/mtd/mtd.h>
+#include <asm/addrspace.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#include <typedefs.h>
+#include <bcmendian.h>
+#include <bcmnvram.h>
+#include <bcmutils.h>
+#include <sbconfig.h>
+#include <sbchipc.h>
+#include <sbutils.h>
+#include <sbmips.h>
+#include <sflash.h>
+
+/* In BSS to minimize text size and page aligned so it can be mmap()-ed */
+static char nvram_buf[NVRAM_SPACE] __attribute__((aligned(PAGE_SIZE)));
+
+#ifdef MODULE
+
+#define early_nvram_get(name) nvram_get(name)
+
+#else /* !MODULE */
+
+/* Global SB handle */
+extern void *bcm947xx_sbh;
+extern spinlock_t bcm947xx_sbh_lock;
+
+/* Convenience */
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+#define KB * 1024
+#define MB * 1024 * 1024
+
+/* Probe for NVRAM header */
+static void __init
+early_nvram_init(void)
+{
+	struct nvram_header *header;
+	chipcregs_t *cc;
+	struct sflash *info = NULL;
+	int i;
+	uint32 base, off, lim;
+
+	if ((cc = sb_setcore(sbh, SB_CC, 0)) != NULL) {
+		base = CC_FLASH_BASE;
+		switch (readl(&cc->capabilities) & CAP_FLASH_MASK) {
+		case PFLASH:
+			lim = CC_FLASH_MAX;
+			break;
+
+		case SFLASH_ST:
+		case SFLASH_AT:
+			if ((info = sflash_init(cc)) == NULL)
+				return;
+			lim = info->size;
+			break;
+
+		case FLASH_NONE:
+		default:
+			return;
+		}
+	} else {
+		/* extif assumed, Stop at 4 MB */
+		base = FLASH_BASE;
+		lim = FLASH_MAX;
+	}
+
+	off = FLASH_MIN;
+	while (off <= lim) {
+		/* Windowed flash access */
+		header = (struct nvram_header *) KSEG1ADDR(base + off - NVRAM_SPACE);
+		if (header->magic == NVRAM_MAGIC) {
+			u32 *src = (u32 *) header;
+			u32 *dst = (u32 *) nvram_buf;
+			for (i = 0; i < sizeof(struct nvram_header); i += 4)
+				*dst++ = *src++;
+			for (; i < header->len && i < NVRAM_SPACE; i += 4)
+				*dst++ = ltoh32(*src++);
+			return;
+		}
+
+		/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
+		if (off == 1 KB)
+			break;
+		else if (off == 4 KB)
+			off = 1 KB;
+		else if (off == lim)
+			off = 4 KB;
+		else
+			off <<= 1;
+	}
+}
+
+/* Early (before mm or mtd) read-only access to NVRAM */
+static char * __init
+early_nvram_get(const char *name)
+{
+	char *var, *value, *end, *eq;
+
+	if (!name)
+		return NULL;
+
+	if (!nvram_buf[0])
+		early_nvram_init();
+
+	/* Look for name=value and return value */
+	var = &nvram_buf[sizeof(struct nvram_header)];
+	end = nvram_buf + sizeof(nvram_buf) - 2;
+	end[0] = end[1] = '\0';
+	for (; *var; var = value + strlen(value) + 1) {
+		if (!(eq = strchr(var, '=')))
+			break;
+		value = eq + 1;
+		if ((eq - var) == strlen(name) && strncmp(var, name, (eq - var)) == 0)
+			return value;
+	}
+
+	return NULL;
+}
+
+#endif /* !MODULE */
+
+extern char * _nvram_get(const char *name);
+extern int _nvram_set(const char *name, const char *value);
+extern int _nvram_unset(const char *name);
+extern int _nvram_getall(char *buf, int count);
+extern int _nvram_commit(struct nvram_header *header);
+extern int _nvram_init(void);
+extern void _nvram_exit(void);
+
+/* Globals */
+static spinlock_t nvram_lock = SPIN_LOCK_UNLOCKED;
+static struct semaphore nvram_sem;
+static unsigned long nvram_offset = 0;
+static int nvram_major = -1;
+static devfs_handle_t nvram_handle = NULL;
+static struct mtd_info *nvram_mtd = NULL;
+
+int
+_nvram_read(char *buf)
+{
+	struct nvram_header *header = (struct nvram_header *) buf;
+	size_t len;
+
+	if (!nvram_mtd ||
+	    MTD_READ(nvram_mtd, nvram_mtd->size - NVRAM_SPACE, NVRAM_SPACE, &len, buf) ||
+	    len != NVRAM_SPACE ||
+	    header->magic != NVRAM_MAGIC) {
+		/* Maybe we can recover some data from early initialization */
+		memcpy(buf, nvram_buf, NVRAM_SPACE);
+	}
+
+	return 0;
+}
+
+struct nvram_tuple *
+_nvram_realloc(struct nvram_tuple *t, const char *name, const char *value)
+{
+	if ((nvram_offset + strlen(value) + 1) > NVRAM_SPACE)
+		return NULL;
+
+	if (!t) {
+		if (!(t = kmalloc(sizeof(struct nvram_tuple) + strlen(name) + 1, GFP_ATOMIC)))
+			return NULL;
+
+		/* Copy name */
+		t->name = (char *) &t[1];
+		strcpy(t->name, name);
+
+		t->value = NULL;
+	}
+
+	/* Copy value */
+	if (!t->value || strcmp(t->value, value)) {
+		t->value = &nvram_buf[nvram_offset];
+		strcpy(t->value, value);
+		nvram_offset += strlen(value) + 1;
+	}
+
+	return t;
+}
+
+void
+_nvram_free(struct nvram_tuple *t)
+{
+	if (!t)
+		nvram_offset = 0;
+	else
+		kfree(t);
+}
+
+int
+nvram_set(const char *name, const char *value)
+{
+	unsigned long flags;
+	int ret;
+	struct nvram_header *header;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+	if ((ret = _nvram_set(name, value))) {
+		/* Consolidate space and try again */
+		if ((header = kmalloc(NVRAM_SPACE, GFP_ATOMIC))) {
+			if (_nvram_commit(header) == 0)
+				ret = _nvram_set(name, value);
+			kfree(header);
+		}
+	}
+	spin_unlock_irqrestore(&nvram_lock, flags);
+
+	return ret;
+}
+
+char *
+real_nvram_get(const char *name)
+{
+	unsigned long flags;
+	char *value;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+	value = _nvram_get(name);
+	spin_unlock_irqrestore(&nvram_lock, flags);
+
+	return value;
+}
+
+char *
+nvram_get(const char *name)
+{
+	if (nvram_major >= 0)
+		return real_nvram_get(name);
+	else
+		return early_nvram_get(name);
+}
+
+int
+nvram_unset(const char *name)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+	ret = _nvram_unset(name);
+	spin_unlock_irqrestore(&nvram_lock, flags);
+
+	return ret;
+}
+
+static void
+erase_callback(struct erase_info *done)
+{
+	wait_queue_head_t *wait_q = (wait_queue_head_t *) done->priv;
+	wake_up(wait_q);
+}
+
+int
+nvram_commit(void)
+{
+	char *buf;
+	size_t erasesize, len;
+	unsigned int i;
+	int ret;
+	struct nvram_header *header;
+	unsigned long flags;
+	u_int32_t offset;
+	DECLARE_WAITQUEUE(wait, current);
+	wait_queue_head_t wait_q;
+	struct erase_info erase;
+
+	printk("nvram_commit(): init\n");
+
+	if (!nvram_mtd) {
+		printk("nvram_commit: NVRAM not found\n");
+		return -ENODEV;
+	}
+
+	if (in_interrupt()) {
+		printk("nvram_commit: not committing in interrupt\n");
+		return -EINVAL;
+	}
+
+	/* Backup sector blocks to be erased */
+	erasesize = ROUNDUP(NVRAM_SPACE, nvram_mtd->erasesize);
+	if (!(buf = kmalloc(erasesize, GFP_KERNEL))) {
+		printk("nvram_commit: out of memory\n");
+		return -ENOMEM;
+	}
+
+	down(&nvram_sem);
+#if 0
+	offset = nvram_mtd->size - erasesize;
+	i = erasesize - NVRAM_SPACE;
+	ret = MTD_READ(nvram_mtd, offset, i, &len, buf);
+	if (ret || len != i) {
+		printk("nvram_commit: read error\n");
+		ret = -EIO;
+		goto done;
+#endif
+	if ((i = erasesize - NVRAM_SPACE) > 0) {
+		offset = nvram_mtd->size - erasesize;
+		len = 0;
+		ret = MTD_READ(nvram_mtd, offset, i, &len, buf);
+		if (ret || len != i) {
+			printk("nvram_commit: read error ret = %d, len = %d/%d\n", ret, len, i);
+			ret = -EIO;
+			goto done;
+		}
+		header = (struct nvram_header *)(buf + i);
+	} else {
+		offset = nvram_mtd->size - NVRAM_SPACE;
+		header = (struct nvram_header *)buf;
+	}
+
+	/* Regenerate NVRAM */
+	spin_lock_irqsave(&nvram_lock, flags);
+	ret = _nvram_commit(header);
+	spin_unlock_irqrestore(&nvram_lock, flags);
+	if (ret)
+		goto done;
+
+	/* Erase sector blocks */
+	init_waitqueue_head(&wait_q);
+	for (; offset < nvram_mtd->size - NVRAM_SPACE + header->len; offset += nvram_mtd->erasesize) {
+		erase.mtd = nvram_mtd;
+		erase.addr = offset;
+		erase.len = nvram_mtd->erasesize;
+		erase.callback = erase_callback;
+		erase.priv = (u_long) &wait_q;
+
+		set_current_state(TASK_INTERRUPTIBLE);
+		add_wait_queue(&wait_q, &wait);
+
+		/* Unlock sector blocks */
+		if (nvram_mtd->unlock)
+			nvram_mtd->unlock(nvram_mtd, offset, nvram_mtd->erasesize);
+
+		if ((ret = MTD_ERASE(nvram_mtd, &erase))) {
+			set_current_state(TASK_RUNNING);
+			remove_wait_queue(&wait_q, &wait);
+			printk("nvram_commit: erase error\n");
+			goto done;
+		}
+
+		/* Wait for erase to finish */
+		schedule();
+		remove_wait_queue(&wait_q, &wait);
+	}
+
+	/* Write partition up to end of data area */
+	offset = nvram_mtd->size - erasesize;
+	i = erasesize - NVRAM_SPACE + header->len;
+	ret = MTD_WRITE(nvram_mtd, offset, i, &len, buf);
+	if (ret || len != i) {
+		printk("nvram_commit: write error\n");
+		ret = -EIO;
+		goto done;
+	}
+	/*
+	 * Reading a few bytes back here will put the device
+	 * back to the correct mode on certain flashes */
+
+	offset = nvram_mtd->size - erasesize;
+	ret = MTD_READ(nvram_mtd, offset, 4, &len, buf);
+
+ done:
+	up(&nvram_sem);
+	kfree(buf);
+	printk("nvram_commit(): end\n");
+	return ret;
+}
+
+int
+nvram_getall(char *buf, int count)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+	ret = _nvram_getall(buf, count);
+	spin_unlock_irqrestore(&nvram_lock, flags);
+
+	return ret;
+}
+
+EXPORT_SYMBOL(nvram_get);
+EXPORT_SYMBOL(nvram_getall);
+EXPORT_SYMBOL(nvram_set);
+EXPORT_SYMBOL(nvram_unset);
+EXPORT_SYMBOL(nvram_commit);
+
+/* User mode interface below */
+
+static ssize_t
+dev_nvram_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+	char tmp[100], *name = tmp, *value;
+	ssize_t ret;
+	unsigned long off;
+
+	if (count > sizeof(tmp)) {
+		if (!(name = kmalloc(count, GFP_KERNEL)))
+			return -ENOMEM;
+	}
+
+	if (copy_from_user(name, buf, count)) {
+		ret = -EFAULT;
+		goto done;
+	}
+
+	if (*name == '\0') {
+		/* Get all variables */
+		ret = nvram_getall(name, count);
+		if (ret == 0) {
+			if (copy_to_user(buf, name, count)) {
+				ret = -EFAULT;
+				goto done;
+			}
+			ret = count;
+		}
+	} else {
+		if (!(value = nvram_get(name))) {
+			ret = 0;
+			goto done;
+		}
+
+		/* Provide the offset into mmap() space */
+		off = (unsigned long) value - (unsigned long) nvram_buf;
+
+		if (put_user(off, (unsigned long *) buf)) {
+			ret = -EFAULT;
+			goto done;
+		}
+
+		ret = sizeof(unsigned long);
+	}
+
+	flush_cache_all();	
+ 
+done:
+	if (name != tmp)
+		kfree(name);
+
+	return ret;
+}
+
+static ssize_t
+dev_nvram_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+	char tmp[100], *name = tmp, *value;
+	ssize_t ret;
+
+	if (count > sizeof(tmp)) {
+		if (!(name = kmalloc(count, GFP_KERNEL)))
+			return -ENOMEM;
+	}
+
+	if (copy_from_user(name, buf, count)) {
+		ret = -EFAULT;
+		goto done;
+	}
+
+	value = name;
+	name = strsep(&value, "=");
+	if (value)
+		ret = nvram_set(name, value) ? : count;
+	else
+		ret = nvram_unset(name) ? : count;
+
+ done:
+	if (name != tmp)
+		kfree(name);
+
+	return ret;
+}	
+
+static int
+dev_nvram_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	if (cmd != NVRAM_MAGIC)
+		return -EINVAL;
+	return nvram_commit();
+}
+
+static int
+dev_nvram_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	unsigned long offset = virt_to_phys(nvram_buf);
+
+	if (remap_page_range(vma->vm_start, offset, vma->vm_end-vma->vm_start,
+			     vma->vm_page_prot))
+		return -EAGAIN;
+
+	return 0;
+}
+
+static int
+dev_nvram_open(struct inode *inode, struct file * file)
+{
+	MOD_INC_USE_COUNT;
+	return 0;
+}
+
+static int
+dev_nvram_release(struct inode *inode, struct file * file)
+{
+	MOD_DEC_USE_COUNT;
+	return 0;
+}
+
+static struct file_operations dev_nvram_fops = {
+	owner:		THIS_MODULE,
+	open:		dev_nvram_open,
+	release:	dev_nvram_release,
+	read:		dev_nvram_read,
+	write:		dev_nvram_write,
+	ioctl:		dev_nvram_ioctl,
+	mmap:		dev_nvram_mmap,
+};
+
+static void
+dev_nvram_exit(void)
+{
+	int order = 0;
+	struct page *page, *end;
+
+	if (nvram_handle)
+		devfs_unregister(nvram_handle);
+
+	if (nvram_major >= 0)
+		devfs_unregister_chrdev(nvram_major, "nvram");
+
+	if (nvram_mtd)
+		put_mtd_device(nvram_mtd);
+
+	while ((PAGE_SIZE << order) < NVRAM_SPACE)
+		order++;
+	end = virt_to_page(nvram_buf + (PAGE_SIZE << order) - 1);
+	for (page = virt_to_page(nvram_buf); page <= end; page++)
+		mem_map_unreserve(page);
+
+	_nvram_exit();
+}
+
+static int __init
+dev_nvram_init(void)
+{
+	int order = 0, ret = 0;
+	struct page *page, *end;
+	unsigned int i;
+
+	/* Allocate and reserve memory to mmap() */
+	while ((PAGE_SIZE << order) < NVRAM_SPACE)
+		order++;
+	end = virt_to_page(nvram_buf + (PAGE_SIZE << order) - 1);
+	for (page = virt_to_page(nvram_buf); page <= end; page++)
+		mem_map_reserve(page);
+
+#ifdef CONFIG_MTD
+	/* Find associated MTD device */
+	for (i = 0; i < MAX_MTD_DEVICES; i++) {
+		nvram_mtd = get_mtd_device(NULL, i);
+		if (nvram_mtd) {
+			if (!strcmp(nvram_mtd->name, "nvram") &&
+			    nvram_mtd->size >= NVRAM_SPACE)
+				break;
+			put_mtd_device(nvram_mtd);
+		}
+	}
+	if (i >= MAX_MTD_DEVICES)
+		nvram_mtd = NULL;
+#endif
+
+	/* Initialize hash table lock */
+	spin_lock_init(&nvram_lock);
+
+	/* Initialize commit semaphore */
+	init_MUTEX(&nvram_sem);
+
+	/* Register char device */
+	if ((nvram_major = devfs_register_chrdev(0, "nvram", &dev_nvram_fops)) < 0) {
+		ret = nvram_major;
+		goto err;
+	}
+
+	/* Initialize hash table */
+	_nvram_init();
+
+	/* Create /dev/nvram handle */
+	nvram_handle = devfs_register(NULL, "nvram", DEVFS_FL_NONE, nvram_major, 0,
+				      S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP, &dev_nvram_fops, NULL);
+
+	/* Set the SDRAM NCDL value into NVRAM if not already done */
+	if (getintvar(NULL, "sdram_ncdl") == 0) {
+		unsigned int ncdl;
+		char buf[] = "0x00000000";
+
+		if ((ncdl = sb_memc_get_ncdl(sbh))) {
+			sprintf(buf, "0x%08x", ncdl);
+			nvram_set("sdram_ncdl", buf);
+			nvram_commit();
+		}
+	}
+
+	return 0;
+
+ err:
+	dev_nvram_exit();
+	return ret;
+}
+
+module_init(dev_nvram_init);
+module_exit(dev_nvram_exit);
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/pcibios.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/pcibios.c
new file mode 100644
index 000000000..4077a79f3
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/pcibios.c
@@ -0,0 +1,352 @@
+/*
+ * Low-Level PCI and SB support for BCM47xx (Linux support code)
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$ 
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/paccess.h>
+
+#include <typedefs.h>
+#include <bcmutils.h>
+#include <sbconfig.h>
+#include <sbpci.h>
+#include <pcicfg.h>
+#include <sbutils.h>
+#include <bcmdevs.h>
+#include <bcmnvram.h>
+
+/* Global SB handle */
+extern void *bcm947xx_sbh;
+extern spinlock_t bcm947xx_sbh_lock;
+
+/* Convenience */
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+
+static int
+sbpci_read_config_byte(struct pci_dev *dev, int where, u8 *value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_read_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, value, sizeof(*value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int
+sbpci_read_config_word(struct pci_dev *dev, int where, u16 *value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_read_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, value, sizeof(*value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int
+sbpci_read_config_dword(struct pci_dev *dev, int where, u32 *value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_read_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, value, sizeof(*value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int
+sbpci_write_config_byte(struct pci_dev *dev, int where, u8 value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_write_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, &value, sizeof(value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int
+sbpci_write_config_word(struct pci_dev *dev, int where, u16 value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_write_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, &value, sizeof(value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int
+sbpci_write_config_dword(struct pci_dev *dev, int where, u32 value)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	ret = sbpci_write_config(sbh, dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn), where, &value, sizeof(value));
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops pcibios_ops = {
+	sbpci_read_config_byte,
+	sbpci_read_config_word,
+	sbpci_read_config_dword,
+	sbpci_write_config_byte,
+	sbpci_write_config_word,
+	sbpci_write_config_dword
+};
+
+
+void __init
+pcibios_init(void)
+{
+	ulong flags;
+
+	if (!(sbh = sb_kattach()))
+		panic("sb_kattach failed");
+	spin_lock_init(&sbh_lock);
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	sbpci_init(sbh);
+	spin_unlock_irqrestore(&sbh_lock, flags);
+
+	set_io_port_base((unsigned long) ioremap_nocache(SB_PCI_MEM, 0x04000000));
+
+	/* Scan the SB bus */
+	pci_scan_bus(0, &pcibios_ops, NULL);
+
+}
+
+char * __init
+pcibios_setup(char *str)
+{
+	if (!strncmp(str, "ban=", 4)) {
+		sbpci_ban(simple_strtoul(str + 4, NULL, 0));
+		return NULL;
+	}
+
+	return (str);
+}
+
+static u32 pci_iobase = 0x100;
+static u32 pci_membase = SB_PCI_DMA;
+
+void __init
+pcibios_fixup_bus(struct pci_bus *b)
+{
+	struct list_head *ln;
+	struct pci_dev *d;
+	struct resource *res;
+	int pos, size;
+	u32 *base;
+	u8 irq;
+
+       	printk("PCI: Fixing up bus %d\n", b->number);
+
+	/* Fix up SB */
+	if (b->number == 0) {
+		for (ln=b->devices.next; ln != &b->devices; ln=ln->next) {
+			d = pci_dev_b(ln);
+			/* Fix up interrupt lines */
+			pci_read_config_byte(d, PCI_INTERRUPT_LINE, &irq);
+			d->irq = irq + 2;
+			pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+		}
+	}
+
+	/* Fix up external PCI */
+	else {
+		for (ln=b->devices.next; ln != &b->devices; ln=ln->next) {
+			d = pci_dev_b(ln);
+			/* Fix up resource bases */
+			for (pos = 0; pos < 6; pos++) {
+				res = &d->resource[pos];
+				base = (res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase;
+				if (res->end) {
+					size = res->end - res->start + 1;
+ 					if (*base & (size - 1))
+ 						*base = (*base + size) & ~(size - 1);
+ 					res->start = *base;
+ 					res->end = res->start + size - 1;
+ 					*base += size;
+					pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
+				}
+				/* Fix up PCI bridge BAR0 only */
+				if (b->number == 1 && PCI_SLOT(d->devfn) == 0)
+					break;
+			}
+			/* Fix up interrupt lines */
+			if (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))
+				d->irq = (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))->irq;
+			pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+		}
+	}
+}
+
+unsigned int
+pcibios_assign_all_busses(void)
+{
+	return 1;
+}
+
+void
+pcibios_align_resource(void *data, struct resource *res,
+		       unsigned long size, unsigned long align)
+{
+}
+
+int
+pcibios_enable_resources(struct pci_dev *dev)
+{
+	u16 cmd, old_cmd;
+	int idx;
+	struct resource *r;
+
+	/* External PCI only */
+	if (dev->bus->number == 0)
+		return 0;
+
+	pci_read_config_word(dev, PCI_COMMAND, &cmd);
+	old_cmd = cmd;
+	for(idx=0; idx<6; idx++) {
+		r = &dev->resource[idx];
+		if (r->flags & IORESOURCE_IO)
+			cmd |= PCI_COMMAND_IO;
+		if (r->flags & IORESOURCE_MEM)
+			cmd |= PCI_COMMAND_MEMORY;
+	}
+	if (dev->resource[PCI_ROM_RESOURCE].start)
+		cmd |= PCI_COMMAND_MEMORY;
+	if (cmd != old_cmd) {
+		printk("PCI: Enabling device %s (%04x -> %04x)\n", dev->slot_name, old_cmd, cmd);
+		pci_write_config_word(dev, PCI_COMMAND, cmd);
+	}
+	return 0;
+}
+
+int
+pcibios_enable_device(struct pci_dev *dev, int mask)
+{
+	ulong flags;
+	uint coreidx;
+
+	/* External PCI device enable */
+	if (dev->bus->number != 0)
+		return pcibios_enable_resources(dev);
+
+	/* These cores come out of reset enabled */
+	if (dev->device == SB_MIPS ||
+	    dev->device == SB_MIPS33 ||
+	    dev->device == SB_EXTIF ||
+	    dev->device == SB_CC)
+		return 0;
+
+	spin_lock_irqsave(&sbh_lock, flags);
+	coreidx = sb_coreidx(sbh);
+	if (!sb_setcoreidx(sbh, PCI_SLOT(dev->devfn)))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	/* 
+	 * The USB core requires a special bit to be set during core
+	 * reset to enable host (OHCI) mode. Resetting the SB core in
+	 * pcibios_enable_device() is a hack for compatibility with
+	 * vanilla usb-ohci so that it does not have to know about
+	 * SB. A driver that wants to use the USB core in device mode
+	 * should know about SB and should reset the bit back to 0
+	 * after calling pcibios_enable_device().
+	 */
+	if (sb_coreid(sbh) == SB_USB) {
+		sb_core_disable(sbh, sb_coreflags(sbh, 0, 0));
+		sb_core_reset(sbh, 1 << 29);
+	} else
+		sb_core_reset(sbh, 0);
+
+	sb_setcoreidx(sbh, coreidx);
+	spin_unlock_irqrestore(&sbh_lock, flags);
+	
+	return 0;
+}
+
+void
+pcibios_update_resource(struct pci_dev *dev, struct resource *root,
+			struct resource *res, int resource)
+{
+	unsigned long where, size;
+	u32 reg;
+
+	/* External PCI only */
+	if (dev->bus->number == 0)
+		return;
+
+	where = PCI_BASE_ADDRESS_0 + (resource * 4);
+	size = res->end - res->start;
+	pci_read_config_dword(dev, where, &reg);
+	reg = (reg & size) | (((u32)(res->start - root->start)) & ~size);
+	pci_write_config_dword(dev, where, reg);
+}
+
+static void __init
+quirk_sbpci_bridge(struct pci_dev *dev)
+{
+	if (dev->bus->number != 1 || PCI_SLOT(dev->devfn) != 0)
+		return;
+
+	printk("PCI: Fixing up bridge\n");
+
+	/* Enable PCI bridge bus mastering and memory space */
+	pci_set_master(dev);
+	pcibios_enable_resources(dev);
+
+	/* Enable PCI bridge BAR1 prefetch and burst */
+	pci_write_config_dword(dev, PCI_BAR1_CONTROL, 3);
+}	
+
+/*
+ *  If we set up a device for bus mastering, we need to check the latency
+ *  timer as certain crappy BIOSes forget to set it properly.
+ */
+unsigned int pcibios_max_latency = 255;
+
+void pcibios_set_master(struct pci_dev *dev)
+{
+	u8 lat;
+	pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
+	if (lat < 16)
+		lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
+	else if (lat > pcibios_max_latency)
+		lat = pcibios_max_latency;
+	else
+		return;
+	printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", dev->slot_name, lat);
+	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
+}
+
+struct pci_fixup pcibios_fixups[] = {
+	{ PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, quirk_sbpci_bridge },
+	{ 0 }
+};
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/perfcntr.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/perfcntr.c
new file mode 100644
index 000000000..aa0608e6e
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/perfcntr.c
@@ -0,0 +1,67 @@
+/*
+ * Broadcom BCM47xx Performance Counter /proc/cpuinfo support
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <asm/mipsregs.h>
+
+/* 
+ * BCM4710 performance counter register select values
+ * No even-odd control-counter mapping, just counters
+ */
+#define PERF_DCACHE_HIT		0
+#define PERF_DCACHE_MISS	1
+#define PERF_ICACHE_HIT		2
+#define PERF_ICACHE_MISS	3
+#define PERF_ICOUNT		4
+
+/* 
+ * Move from Coprocessor 0 Register 25 Select n
+ * data <- CPR[0,25,n] 
+ * GPR[1] <- data
+ */
+#define read_bcm4710_perf_cntr(n)				\
+({ int __res;							\
+        __asm__ __volatile__(					\
+	".set\tnoreorder\n\t"                                   \
+	".set\tnoat\n\t"                                        \
+	".word\t"STR(0x4001c800|(n))"\n\t"			\
+	"move\t%0,$1\n\t"                                       \
+	".set\tat\n\t"                                          \
+	".set\treorder"                                         \
+	:"=r" (__res));                                         \
+	__res;})
+
+asmlinkage unsigned int read_perf_cntr(unsigned int counter)
+{
+	switch (counter) {
+	case PERF_DCACHE_HIT:	return read_bcm4710_perf_cntr(PERF_DCACHE_HIT);
+	case PERF_DCACHE_MISS:	return read_bcm4710_perf_cntr(PERF_DCACHE_MISS);
+	case PERF_ICACHE_HIT:	return read_bcm4710_perf_cntr(PERF_ICACHE_HIT);
+	case PERF_ICACHE_MISS:	return read_bcm4710_perf_cntr(PERF_ICACHE_MISS);
+	case PERF_ICOUNT:	return read_bcm4710_perf_cntr(PERF_ICOUNT);
+	}
+	return 0;
+}
+
+asmlinkage void write_perf_cntr(unsigned int counter, unsigned int val)
+{
+}
+
+asmlinkage unsigned int read_perf_cntl(unsigned int counter)
+{
+	return 0;
+}
+
+asmlinkage void write_perf_cntl(unsigned int counter, unsigned int val)
+{
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/prom.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/prom.c
new file mode 100644
index 000000000..e41f44b9e
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/prom.c
@@ -0,0 +1,41 @@
+/*
+ * Early initialization code for BCM94710 boards
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/bootinfo.h>
+
+void __init
+prom_init(int argc, const char **argv)
+{
+	unsigned long mem;
+
+        mips_machgroup = MACH_GROUP_BRCM;
+        mips_machtype = MACH_BCM947XX;
+
+	/* Figure out memory size by finding aliases */
+	for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
+		if (*(unsigned long *)((unsigned long)(prom_init) + mem) == 
+		    *(unsigned long *)(prom_init))
+			break;
+	}
+	add_memory_region(0, mem, BOOT_MEM_RAM);
+}
+
+void __init
+prom_free_prom_memory(void)
+{
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbmips.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbmips.c
new file mode 100644
index 000000000..6daaeb78c
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbmips.c
@@ -0,0 +1,951 @@
+/*
+ * BCM47XX Sonics SiliconBackplane MIPS core routines
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <typedefs.h>
+#include <osl.h>
+#include <sbutils.h>
+#include <bcmdevs.h>
+#include <bcmnvram.h>
+#include <bcmutils.h>
+#include <hndmips.h>
+#include <sbconfig.h>
+#include <sbextif.h>
+#include <sbchipc.h>
+#include <sbmemc.h>
+
+/*
+ * Memory segments (32bit kernel mode addresses)
+ */
+#undef KUSEG
+#undef KSEG0
+#undef KSEG1
+#undef KSEG2
+#undef KSEG3
+#define KUSEG		0x00000000
+#define KSEG0		0x80000000
+#define KSEG1		0xa0000000
+#define KSEG2		0xc0000000
+#define KSEG3		0xe0000000
+
+/*
+ * Map an address to a certain kernel segment
+ */
+#undef KSEG0ADDR
+#undef KSEG1ADDR
+#undef KSEG2ADDR
+#undef KSEG3ADDR
+#define KSEG0ADDR(a)		(((a) & 0x1fffffff) | KSEG0)
+#define KSEG1ADDR(a)		(((a) & 0x1fffffff) | KSEG1)
+#define KSEG2ADDR(a)		(((a) & 0x1fffffff) | KSEG2)
+#define KSEG3ADDR(a)		(((a) & 0x1fffffff) | KSEG3)
+
+/*
+ * The following macros are especially useful for __asm__
+ * inline assembler.
+ */
+#ifndef __STR
+#define __STR(x) #x
+#endif
+#ifndef STR
+#define STR(x) __STR(x)
+#endif
+
+/*  *********************************************************************
+    *  CP0 Registers 
+    ********************************************************************* */
+
+#define C0_INX		0		/* CP0: TLB Index */
+#define C0_RAND		1		/* CP0: TLB Random */
+#define C0_TLBLO0	2		/* CP0: TLB EntryLo0 */
+#define C0_TLBLO	C0_TLBLO0	/* CP0: TLB EntryLo0 */
+#define C0_TLBLO1	3		/* CP0: TLB EntryLo1 */
+#define C0_CTEXT	4		/* CP0: Context */
+#define C0_PGMASK	5		/* CP0: TLB PageMask */
+#define C0_WIRED	6		/* CP0: TLB Wired */
+#define C0_BADVADDR	8		/* CP0: Bad Virtual Address */
+#define C0_COUNT 	9		/* CP0: Count */
+#define C0_TLBHI	10		/* CP0: TLB EntryHi */
+#define C0_COMPARE	11		/* CP0: Compare */
+#define C0_SR		12		/* CP0: Processor Status */
+#define C0_STATUS	C0_SR		/* CP0: Processor Status */
+#define C0_CAUSE	13		/* CP0: Exception Cause */
+#define C0_EPC		14		/* CP0: Exception PC */
+#define C0_PRID		15		/* CP0: Processor Revision Indentifier */
+#define C0_CONFIG	16		/* CP0: Config */
+#define C0_LLADDR	17		/* CP0: LLAddr */
+#define C0_WATCHLO	18		/* CP0: WatchpointLo */
+#define C0_WATCHHI	19		/* CP0: WatchpointHi */
+#define C0_XCTEXT	20		/* CP0: XContext */
+#define C0_DIAGNOSTIC	22		/* CP0: Diagnostic */
+#define C0_BROADCOM	C0_DIAGNOSTIC	/* CP0: Broadcom Register */
+#define C0_ECC		26		/* CP0: ECC */
+#define C0_CACHEERR	27		/* CP0: CacheErr */
+#define C0_TAGLO	28		/* CP0: TagLo */
+#define C0_TAGHI	29		/* CP0: TagHi */
+#define C0_ERREPC	30		/* CP0: ErrorEPC */
+
+/*
+ * Macros to access the system control coprocessor
+ */
+
+#define MFC0(source, sel)					\
+({								\
+	int __res;						\
+	__asm__ __volatile__(					\
+	".set\tnoreorder\n\t"					\
+	".set\tnoat\n\t"					\
+	".word\t"STR(0x40010000 | ((source)<<11) | (sel))"\n\t"	\
+	"move\t%0,$1\n\t"					\
+	".set\tat\n\t"						\
+	".set\treorder"						\
+	:"=r" (__res)						\
+	:							\
+	:"$1");							\
+	__res;							\
+})
+
+#define MTC0(source, sel, value)				\
+do {								\
+	__asm__ __volatile__(					\
+	".set\tnoreorder\n\t"					\
+	".set\tnoat\n\t"					\
+	"move\t$1,%z0\n\t"					\
+	".word\t"STR(0x40810000 | ((source)<<11) | (sel))"\n\t"	\
+	".set\tat\n\t"						\
+	".set\treorder"						\
+	:							\
+	:"Jr" (value)						\
+	:"$1");							\
+} while (0)
+
+/*
+ * R4x00 interrupt enable / cause bits
+ */
+#undef IE_SW0
+#undef IE_SW1
+#undef IE_IRQ0
+#undef IE_IRQ1
+#undef IE_IRQ2
+#undef IE_IRQ3
+#undef IE_IRQ4
+#undef IE_IRQ5
+#define IE_SW0		(1<< 8)
+#define IE_SW1		(1<< 9)
+#define IE_IRQ0		(1<<10)
+#define IE_IRQ1		(1<<11)
+#define IE_IRQ2		(1<<12)
+#define IE_IRQ3		(1<<13)
+#define IE_IRQ4		(1<<14)
+#define IE_IRQ5		(1<<15)
+
+/*
+ * Bitfields in the R4xx0 cp0 status register
+ */
+#define ST0_IE			0x00000001
+#define ST0_EXL			0x00000002
+#define ST0_ERL			0x00000004
+#define ST0_KSU			0x00000018
+#  define KSU_USER		0x00000010
+#  define KSU_SUPERVISOR	0x00000008
+#  define KSU_KERNEL		0x00000000
+#define ST0_UX			0x00000020
+#define ST0_SX			0x00000040
+#define ST0_KX 			0x00000080
+#define ST0_DE			0x00010000
+#define ST0_CE			0x00020000
+
+/*
+ * Status register bits available in all MIPS CPUs.
+ */
+#define ST0_IM			0x0000ff00
+#define ST0_CH			0x00040000
+#define ST0_SR			0x00100000
+#define ST0_TS			0x00200000
+#define ST0_BEV			0x00400000
+#define ST0_RE			0x02000000
+#define ST0_FR			0x04000000
+#define ST0_CU			0xf0000000
+#define ST0_CU0			0x10000000
+#define ST0_CU1			0x20000000
+#define ST0_CU2			0x40000000
+#define ST0_CU3			0x80000000
+#define ST0_XX			0x80000000	/* MIPS IV naming */
+
+/*
+ * Cache Operations
+ */
+
+#ifndef Fill_I
+#define Fill_I			0x14
+#endif
+
+#define cache_unroll(base,op)			\
+	__asm__ __volatile__("			\
+		.set noreorder;			\
+		.set mips3;			\
+		cache %1, (%0);			\
+		.set mips0;			\
+		.set reorder"			\
+		:				\
+		: "r" (base),			\
+		  "i" (op));
+
+/* 
+ * These are the UART port assignments, expressed as offsets from the base
+ * register.  These assignments should hold for any serial port based on
+ * a 8250, 16450, or 16550(A).
+ */
+
+#define UART_MCR	4	/* Out: Modem Control Register */
+#define UART_MSR	6	/* In:  Modem Status Register */
+#define UART_MCR_LOOP	0x10	/* Enable loopback test mode */
+
+/* 
+ * Returns TRUE if an external UART exists at the given base
+ * register.
+ */
+static bool
+serial_exists(uint8 *regs)
+{
+	uint8 save_mcr, status1;
+
+	save_mcr = R_REG(&regs[UART_MCR]);
+	W_REG(&regs[UART_MCR], UART_MCR_LOOP | 0x0a);
+	status1 = R_REG(&regs[UART_MSR]) & 0xf0;
+	W_REG(&regs[UART_MCR], save_mcr);
+
+	return (status1 == 0x90);
+}
+
+/* 
+ * Initializes UART access. The callback function will be called once
+ * per found UART.
+*/
+void
+sb_serial_init(void *sbh, void (*add)(void *regs, uint irq, uint baud_base, uint reg_shift))
+{
+	void *regs;
+	ulong base;
+	uint irq;
+	int i, n;
+
+	if ((regs = sb_setcore(sbh, SB_EXTIF, 0))) {
+		extifregs_t *eir = (extifregs_t *) regs;
+		sbconfig_t *sb;
+
+		/* Determine external UART register base */
+		sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF);
+		base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1)));
+
+		/* Determine IRQ */
+		irq = sb_irq(sbh);
+
+		/* Disable GPIO interrupt initially */
+		W_REG(&eir->gpiointpolarity, 0);
+		W_REG(&eir->gpiointmask, 0);
+
+		/* Search for external UARTs */
+		n = 2;
+		for (i = 0; i < 2; i++) {
+			regs = (void *) REG_MAP(base + (i * 8), 8);
+			if (serial_exists(regs)) {
+				/* Set GPIO 1 to be the external UART IRQ */
+				W_REG(&eir->gpiointmask, 2);
+				if (add)
+					add(regs, irq, 13500000, 0);
+			}
+		}
+
+		/* Add internal UART if enabled */
+		if (R_REG(&eir->corecontrol) & CC_UE)
+			if (add)
+				add((void *) &eir->uartdata, irq, sb_clock(sbh), 2);
+	} else if ((regs = sb_setcore(sbh, SB_CC, 0))) {
+		chipcregs_t *cc = (chipcregs_t *) regs;
+		uint32 rev, cap, pll, baud_base, div;
+
+		/* Determine core revision and capabilities */
+		rev = sb_corerev(sbh);
+		cap = R_REG(&cc->capabilities);
+		pll = cap & CAP_PLL_MASK;
+
+		/* Determine IRQ */
+		irq = sb_irq(sbh);
+
+		if (pll == PLL_TYPE1) {
+			/* PLL clock */
+			baud_base = sb_clock_rate(pll,
+						  R_REG(&cc->clockcontrol_n),
+						  R_REG(&cc->clockcontrol_m2));
+			div = 1;
+		} else if (rev >= 3) {
+			/* Internal backplane clock */
+			baud_base = sb_clock_rate(pll,
+						  R_REG(&cc->clockcontrol_n),
+						  R_REG(&cc->clockcontrol_sb));
+			div = 2;	/* Minimum divisor */
+			W_REG(&cc->clkdiv, ((R_REG(&cc->clkdiv) & ~CLKD_UART) | div));
+		} else {
+			/* Fixed internal backplane clock */
+			baud_base = 88000000;
+			div = 48;
+		}
+
+		/* Clock source depends on strapping if UartClkOverride is unset */
+		if ((rev > 0) && ((R_REG(&cc->corecontrol) & CC_UARTCLKO) == 0)) {
+			if ((cap & CAP_UCLKSEL) == CAP_UINTCLK) {
+				/* Internal divided backplane clock */
+				baud_base /= div;
+			} else {
+				/* Assume external clock of 1.8432 MHz */
+				baud_base = 1843200;
+			}
+		}
+
+		/* Add internal UARTs */
+		n = cap & CAP_UARTS_MASK;
+		for (i = 0; i < n; i++) {
+			/* Register offset changed after revision 0 */
+			if (rev)
+				regs = (void *)((ulong) &cc->uart0data + (i * 256));
+			else
+				regs = (void *)((ulong) &cc->uart0data + (i * 8));
+
+			if (add)
+				add(regs, irq, baud_base, 0);
+		}
+	}
+}
+
+/* Returns the SB interrupt flag of the current core. */
+uint32
+sb_flag(void *sbh)
+{
+	void *regs;
+	sbconfig_t *sb;
+
+	regs = sb_coreregs(sbh);
+	sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+	return (R_REG(&sb->sbtpsflag) & SBTPS_NUM0_MASK);
+}
+
+static const uint32 sbips_int_mask[] = {
+	0,
+	SBIPS_INT1_MASK,
+	SBIPS_INT2_MASK,
+	SBIPS_INT3_MASK,
+	SBIPS_INT4_MASK
+};
+
+static const uint32 sbips_int_shift[] = {
+	0,
+	0,
+	SBIPS_INT2_SHIFT,
+	SBIPS_INT3_SHIFT,
+	SBIPS_INT4_SHIFT
+};
+
+/* 
+ * Returns the MIPS IRQ assignment of the current core. If unassigned,
+ * 0 is returned.
+ */
+uint
+sb_irq(void *sbh)
+{
+	uint idx;
+	void *regs;
+	sbconfig_t *sb;
+	uint32 flag, sbipsflag;
+	uint irq = 0;
+
+	flag = sb_flag(sbh);
+
+	idx = sb_coreidx(sbh);
+
+	if ((regs = sb_setcore(sbh, SB_MIPS, 0)) ||
+	    (regs = sb_setcore(sbh, SB_MIPS33, 0))) {
+		sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+		/* sbipsflag specifies which core is routed to interrupts 1 to 4 */
+		sbipsflag = R_REG(&sb->sbipsflag);
+		for (irq = 1; irq <= 4; irq++) {
+			if (((sbipsflag & sbips_int_mask[irq]) >> sbips_int_shift[irq]) == flag)
+				break;
+		}
+		if (irq == 5)
+			irq = 0;
+	}
+
+	sb_setcoreidx(sbh, idx);
+
+	return irq;
+}
+
+/* Clears the specified MIPS IRQ. */
+static void
+sb_clearirq(void *sbh, uint irq)
+{
+	void *regs;
+	sbconfig_t *sb;
+
+	if (!(regs = sb_setcore(sbh, SB_MIPS, 0)) &&
+	    !(regs = sb_setcore(sbh, SB_MIPS33, 0)))
+		ASSERT(regs);
+	sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+	if (irq == 0)
+		W_REG(&sb->sbintvec, 0);
+	else
+		OR_REG(&sb->sbipsflag, sbips_int_mask[irq]);
+}
+
+/* 
+ * Assigns the specified MIPS IRQ to the specified core. Shared MIPS
+ * IRQ 0 may be assigned more than once.
+ */
+static void
+sb_setirq(void *sbh, uint irq, uint coreid, uint coreunit)
+{
+	void *regs;
+	sbconfig_t *sb;
+	uint32 flag;
+
+	regs = sb_setcore(sbh, coreid, coreunit);
+	ASSERT(regs);
+	flag = sb_flag(sbh);
+
+	if (!(regs = sb_setcore(sbh, SB_MIPS, 0)) &&
+	    !(regs = sb_setcore(sbh, SB_MIPS33, 0)))
+		ASSERT(regs);
+	sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+	if (irq == 0)
+		OR_REG(&sb->sbintvec, 1 << flag);
+	else {
+		flag <<= sbips_int_shift[irq];
+		ASSERT(!(flag & ~sbips_int_mask[irq]));
+		flag |= R_REG(&sb->sbipsflag) & ~sbips_int_mask[irq];
+		W_REG(&sb->sbipsflag, flag);
+	}
+}	
+
+/* 
+ * Initializes clocks and interrupts. SB and NVRAM access must be
+ * initialized prior to calling.
+ */
+void
+sb_mips_init(void *sbh)
+{
+	ulong hz, ns, tmp;
+	extifregs_t *eir;
+	chipcregs_t *cc;
+	char *value;
+	uint irq;
+
+	/* Figure out current SB clock speed */
+	if ((hz = sb_clock(sbh)) == 0)
+		hz = 100000000;
+	ns = 1000000000 / hz;
+
+	/* Setup external interface timing */
+	if ((eir = sb_setcore(sbh, SB_EXTIF, 0))) {
+		/* Initialize extif so we can get to the LEDs and external UART */
+		W_REG(&eir->prog_config, CF_EN);
+
+		/* Set timing for the flash */
+		tmp = CEIL(10, ns) << FW_W3_SHIFT;	/* W3 = 10nS */
+		tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */
+		tmp = tmp | CEIL(120, ns);		/* W0 = 120nS */
+		W_REG(&eir->prog_waitcount, tmp);	/* 0x01020a0c for a 100Mhz clock */
+
+		/* Set programmable interface timing for external uart */
+		tmp = CEIL(10, ns) << FW_W3_SHIFT;	/* W3 = 10nS */
+		tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */
+		tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */
+		tmp = tmp | CEIL(120, ns);		/* W0 = 120nS */
+		W_REG(&eir->prog_waitcount, tmp);	/* 0x01020a0c for a 100Mhz clock */
+	} else if ((cc = sb_setcore(sbh, SB_CC, 0))) {
+		/* Set timing for the flash */
+		tmp = CEIL(10, ns) << FW_W3_SHIFT;	/* W3 = 10nS */
+		tmp |= CEIL(10, ns) << FW_W1_SHIFT;	/* W1 = 10nS */
+		tmp |= CEIL(120, ns);			/* W0 = 120nS */
+		W_REG(&cc->flash_waitcount, tmp);
+
+		W_REG(&cc->pcmcia_memwait, tmp);
+	}
+
+	/* Chip specific initialization */
+	switch (sb_chip(sbh)) {
+	case BCM4710_DEVICE_ID:
+		/* Clear interrupt map */
+		for (irq = 0; irq <= 4; irq++)
+			sb_clearirq(sbh, irq);
+		sb_setirq(sbh, 0, SB_CODEC, 0);
+		sb_setirq(sbh, 0, SB_EXTIF, 0);
+		sb_setirq(sbh, 2, SB_ENET, 1);
+		sb_setirq(sbh, 3, SB_ILINE20, 0);
+		sb_setirq(sbh, 4, SB_PCI, 0);
+		ASSERT(eir);
+		value = nvram_get("et0phyaddr");
+		if (value && !strcmp(value, "31")) {
+			/* Enable internal UART */
+			W_REG(&eir->corecontrol, CC_UE);
+			/* Give USB its own interrupt */
+			sb_setirq(sbh, 1, SB_USB, 0);
+		} else {
+			/* Disable internal UART */
+			W_REG(&eir->corecontrol, 0);
+			/* Give Ethernet its own interrupt */
+			sb_setirq(sbh, 1, SB_ENET, 0);
+			sb_setirq(sbh, 0, SB_USB, 0);
+		}
+		break;
+	case BCM4310_DEVICE_ID:
+		MTC0(C0_BROADCOM, 0, MFC0(C0_BROADCOM, 0) & ~(1 << 22));
+		break;
+	}
+}
+
+uint32
+sb_mips_clock(void *sbh)
+{
+	extifregs_t *eir;
+	chipcregs_t *cc;
+	uint32 n, m;
+	uint idx;
+	uint32 pll_type, rate = 0;
+
+	/* get index of the current core */
+	idx = sb_coreidx(sbh);
+	pll_type = PLL_TYPE1;
+
+	/* switch to extif or chipc core */
+	if ((eir = (extifregs_t *) sb_setcore(sbh, SB_EXTIF, 0))) {
+		n = R_REG(&eir->clockcontrol_n);
+		m = R_REG(&eir->clockcontrol_sb);
+	} else if ((cc = (chipcregs_t *) sb_setcore(sbh, SB_CC, 0))) {
+		pll_type = R_REG(&cc->capabilities) & CAP_PLL_MASK;
+		n = R_REG(&cc->clockcontrol_n);
+		if ((pll_type == PLL_TYPE2) || (pll_type == PLL_TYPE4))
+			m = R_REG(&cc->clockcontrol_mips);
+		else if (pll_type == PLL_TYPE3) {
+			rate = 200000000;
+			goto out;
+		} else
+			m = R_REG(&cc->clockcontrol_sb);
+	} else
+		goto out;
+
+	/* calculate rate */
+	rate = sb_clock_rate(pll_type, n, m);
+
+out:
+	/* switch back to previous core */
+	sb_setcoreidx(sbh, idx);
+
+	return rate;
+}
+
+static void
+icache_probe(int *size, int *lsize)
+{
+	uint32 config1;
+	uint sets, ways;
+
+	config1 = MFC0(C0_CONFIG, 1);
+
+	/* Instruction Cache Size = Associativity * Line Size * Sets Per Way */
+	if ((*lsize = ((config1 >> 19) & 7)))
+		*lsize = 2 << *lsize;
+	sets = 64 << ((config1 >> 22) & 7);
+	ways = 1 + ((config1 >> 16) & 7);
+	*size = *lsize * sets * ways;
+}
+
+#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4)
+
+static void
+handler(void)
+{
+	/* Step 11 */
+	__asm__ (
+		".set\tmips32\n\t"
+		"ssnop\n\t"
+		"ssnop\n\t"
+	/* Disable interrupts */
+	/*	MTC0(C0_STATUS, 0, MFC0(C0_STATUS, 0) & ~(ALLINTS | STO_IE)); */
+		"mfc0 $15, $12\n\t"
+		"and $15, $15, -31746\n\t"
+		"mtc0 $15, $12\n\t"
+		"eret\n\t"
+		"nop\n\t"
+		"nop\n\t"
+		".set\tmips0"
+	);
+}
+
+/* The following MUST come right after handler() */
+static void
+afterhandler(void)
+{
+}
+
+/*
+ * Set the MIPS, backplane and PCI clocks as closely as possible.
+ */
+bool
+sb_mips_setclock(void *sbh, uint32 mipsclock, uint32 sbclock, uint32 pciclock)
+{
+	extifregs_t *eir = NULL;
+	chipcregs_t *cc = NULL;
+	mipsregs_t *mipsr = NULL;
+	volatile uint32 *clockcontrol_n, *clockcontrol_sb, *clockcontrol_pci;
+	uint32 orig_n, orig_sb, orig_pci, orig_m2, orig_mips, orig_ratio_parm, new_ratio;
+	uint32 pll_type, sync_mode;
+	uint idx, i;
+	typedef struct {
+		uint32 mipsclock;
+		uint16 n;
+		uint32 sb;
+		uint32 pci33;
+		uint32 pci25;
+	} n3m_table_t;
+	static n3m_table_t type1_table[] = {
+		{  96000000, 0x0303, 0x04020011, 0x11030011, 0x11050011 }, /*  96.000 32.000 24.000 */
+		{ 100000000, 0x0009, 0x04020011, 0x11030011, 0x11050011 }, /* 100.000 33.333 25.000 */
+		{ 104000000, 0x0802, 0x04020011, 0x11050009, 0x11090009 }, /* 104.000 31.200 24.960 */
+		{ 108000000, 0x0403, 0x04020011, 0x11050009, 0x02000802 }, /* 108.000 32.400 24.923 */
+		{ 112000000, 0x0205, 0x04020011, 0x11030021, 0x02000403 }, /* 112.000 32.000 24.889 */
+		{ 115200000, 0x0303, 0x04020009, 0x11030011, 0x11050011 }, /* 115.200 32.000 24.000 */
+		{ 120000000, 0x0011, 0x04020011, 0x11050011, 0x11090011 }, /* 120.000 30.000 24.000 */
+		{ 124800000, 0x0802, 0x04020009, 0x11050009, 0x11090009 }, /* 124.800 31.200 24.960 */
+		{ 128000000, 0x0305, 0x04020011, 0x11050011, 0x02000305 }, /* 128.000 32.000 24.000 */
+		{ 132000000, 0x0603, 0x04020011, 0x11050011, 0x02000305 }, /* 132.000 33.000 24.750 */
+		{ 136000000, 0x0c02, 0x04020011, 0x11090009, 0x02000603 }, /* 136.000 32.640 24.727 */
+		{ 140000000, 0x0021, 0x04020011, 0x11050021, 0x02000c02 }, /* 140.000 30.000 24.706 */
+		{ 144000000, 0x0405, 0x04020011, 0x01020202, 0x11090021 }, /* 144.000 30.857 24.686 */
+		{ 150857142, 0x0605, 0x04020021, 0x02000305, 0x02000605 }, /* 150.857 33.000 24.000 */
+		{ 152000000, 0x0e02, 0x04020011, 0x11050021, 0x02000e02 }, /* 152.000 32.571 24.000 */
+		{ 156000000, 0x0802, 0x04020005, 0x11050009, 0x11090009 }, /* 156.000 31.200 24.960 */
+		{ 160000000, 0x0309, 0x04020011, 0x11090011, 0x02000309 }, /* 160.000 32.000 24.000 */
+		{ 163200000, 0x0c02, 0x04020009, 0x11090009, 0x02000603 }, /* 163.200 32.640 24.727 */
+		{ 168000000, 0x0205, 0x04020005, 0x11030021, 0x02000403 }, /* 168.000 32.000 24.889 */
+		{ 176000000, 0x0602, 0x04020003, 0x11050005, 0x02000602 }, /* 176.000 33.000 24.000 */
+	};
+	typedef struct {
+		uint32 mipsclock;
+		uint32 sbclock;
+		uint16 n;
+		uint32 sb;
+		uint32 pci33;
+		uint32 m2;
+		uint32 m3;
+		uint32 ratio;
+		uint32 ratio_parm;
+	} n4m_table_t;
+
+	static n4m_table_t type2_table[] = {
+		{ 180000000,  80000000, 0x0403, 0x01010000, 0x01020300, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 180000000,  90000000, 0x0403, 0x01000100, 0x01020300, 0x01000100, 0x05000100, 0x21, 0x0aaa0555 },
+		{ 200000000, 100000000, 0x0303, 0x01000000, 0x01000600, 0x01000000, 0x05000000, 0x21, 0x0aaa0555 },
+		{ 211200000, 105600000, 0x0902, 0x01000200, 0x01030400, 0x01000200, 0x05000200, 0x21, 0x0aaa0555 },
+		{ 220800000, 110400000, 0x1500, 0x01000200, 0x01030400, 0x01000200, 0x05000200, 0x21, 0x0aaa0555 },
+		{ 230400000, 115200000, 0x0604, 0x01000200, 0x01020600, 0x01000200, 0x05000200, 0x21, 0x0aaa0555 },
+		{ 234000000, 104000000, 0x0b01, 0x01010000, 0x01010700, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 240000000, 120000000,	0x0803,	0x01000200, 0x01020600,	0x01000200, 0x05000200, 0x21, 0x0aaa0555 },
+		{ 252000000, 126000000,	0x0504,	0x01000100, 0x01020500,	0x01000100, 0x05000100, 0x21, 0x0aaa0555 },
+		{ 264000000, 132000000, 0x0903, 0x01000200, 0x01020700, 0x01000200, 0x05000200, 0x21, 0x0aaa0555 },
+		{ 270000000, 120000000, 0x0703, 0x01010000, 0x01030400, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 276000000, 122666666, 0x1500, 0x01010000, 0x01030400, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 280000000, 140000000, 0x0503, 0x01000000, 0x01010600, 0x01000000, 0x05000000, 0x21, 0x0aaa0555 },
+		{ 288000000, 128000000, 0x0604, 0x01010000, 0x01030400, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 288000000, 144000000, 0x0404, 0x01000000, 0x01010600, 0x01000000, 0x05000000, 0x21, 0x0aaa0555 },
+		{ 300000000, 133333333, 0x0803, 0x01010000, 0x01020600, 0x01020600, 0x05000100, 0x94, 0x012a0115 },
+		{ 300000000, 150000000, 0x0803, 0x01000100, 0x01020600, 0x01000100, 0x05000100, 0x21, 0x0aaa0555 }
+	};
+
+	static n4m_table_t type4_table[] = {
+		{ 192000000,  96000000, 0x0702,	0x04020011, 0x11030011, 0x04020011, 0x04020003, 0x21, 0x0aaa0555 },
+		{ 200000000, 100000000, 0x0009,	0x04020011, 0x11030011, 0x04020011, 0x04020003, 0x21, 0x0aaa0555 },
+		{ 216000000, 108000000, 0x0111, 0x11020005, 0x01030303, 0x11020005, 0x04000005, 0x21, 0x0aaa0555 },
+		{ 228000000, 101333333, 0x0e02, 0x11030003, 0x11210005, 0x11030305, 0x04000005, 0x94, 0x012a00a9 },
+		{ 228000000, 114000000, 0x0e02, 0x11020005, 0x11210005, 0x11020005, 0x04000005, 0x21, 0x0aaa0555 },
+		{ 240000000, 120000000,	0x0109,	0x11030002, 0x01050203,	0x11030002, 0x04000003, 0x21, 0x0aaa0555 },
+		{ 252000000, 126000000,	0x0203,	0x04000005, 0x11050005,	0x04000005, 0x04000002, 0x21, 0x0aaa0555 },
+		{ 264000000, 132000000, 0x0602, 0x04000005, 0x11050005, 0x04000005, 0x04000002, 0x21, 0x0aaa0555 },
+		{ 272000000, 116571428, 0x0c02, 0x04000021, 0x02000909, 0x02000221, 0x04000003, 0x73, 0x254a14a9 },
+		{ 280000000, 120000000, 0x0209, 0x04000021, 0x01030303, 0x02000221, 0x04000003, 0x73, 0x254a14a9 },
+		{ 288000000, 123428571, 0x0111, 0x04000021, 0x01030303, 0x02000221, 0x04000003, 0x73, 0x254a14a9 },
+		{ 300000000, 120000000, 0x0009, 0x04000009, 0x01030203, 0x02000902, 0x04000002, 0x52, 0x02520129 }
+	};
+	uint icache_size, ic_lsize;
+	ulong start, end, dst;
+	bool ret = FALSE;
+
+	/* get index of the current core */
+	idx = sb_coreidx(sbh);
+
+	/* switch to extif or chipc core */
+	if ((eir = (extifregs_t *) sb_setcore(sbh, SB_EXTIF, 0))) {
+		pll_type = PLL_TYPE1;
+		clockcontrol_n = &eir->clockcontrol_n;
+		clockcontrol_sb = &eir->clockcontrol_sb;
+		clockcontrol_pci = &eir->clockcontrol_pci;
+	} else if ((cc = (chipcregs_t *) sb_setcore(sbh, SB_CC, 0))) {
+		pll_type = R_REG(&cc->capabilities) & CAP_PLL_MASK;
+		clockcontrol_n = &cc->clockcontrol_n;
+		clockcontrol_sb = &cc->clockcontrol_sb;
+		clockcontrol_pci = &cc->clockcontrol_pci;
+	} else
+		goto done;
+
+	/* Store the current clock register values */
+	orig_n = R_REG(clockcontrol_n);
+	orig_sb = R_REG(clockcontrol_sb);
+	orig_pci = R_REG(clockcontrol_pci);
+
+	if (pll_type == PLL_TYPE1) {
+		/* Keep the current PCI clock if not specified */
+		if (pciclock == 0) {
+			pciclock = sb_clock_rate(pll_type, R_REG(clockcontrol_n), R_REG(clockcontrol_pci));
+			pciclock = (pciclock <= 25000000) ? 25000000 : 33000000;
+		}
+
+		/* Search for the closest MIPS clock less than or equal to a preferred value */
+		for (i = 0; i < ARRAYSIZE(type1_table); i++) {
+			ASSERT(type1_table[i].mipsclock ==
+			       sb_clock_rate(pll_type, type1_table[i].n, type1_table[i].sb));
+			if (type1_table[i].mipsclock > mipsclock)
+				break;
+		}
+		if (i == 0) {
+			ret = FALSE;
+			goto done;
+		} else {
+			ret = TRUE;
+			i--;
+		}
+		ASSERT(type1_table[i].mipsclock <= mipsclock);
+
+		/* No PLL change */
+		if ((orig_n == type1_table[i].n) &&
+		    (orig_sb == type1_table[i].sb) &&
+		    (orig_pci == type1_table[i].pci33))
+			goto done;
+
+		/* Set the PLL controls */
+		W_REG(clockcontrol_n, type1_table[i].n);
+		W_REG(clockcontrol_sb, type1_table[i].sb);
+		if (pciclock == 25000000)
+			W_REG(clockcontrol_pci, type1_table[i].pci25);
+		else
+			W_REG(clockcontrol_pci, type1_table[i].pci33);
+
+		/* Reset */
+		sb_watchdog(sbh, 1);
+		while (1);
+	} else if ((pll_type == PLL_TYPE2) || (pll_type == PLL_TYPE4)) {
+		n4m_table_t *table = (pll_type == PLL_TYPE2) ? type2_table : type4_table;
+		uint tabsz = (pll_type == PLL_TYPE2) ? ARRAYSIZE(type2_table) : ARRAYSIZE(type4_table);
+
+		ASSERT(cc);
+
+		/* Store the current clock register values */
+		orig_m2 = R_REG(&cc->clockcontrol_m2);
+		orig_mips = R_REG(&cc->clockcontrol_mips);
+		orig_ratio_parm = 0;
+
+		/* Look up current ratio */
+		for (i = 0; i < tabsz; i++) {
+			if ((orig_n == table[i].n) &&
+			    (orig_sb == table[i].sb) &&
+			    (orig_pci == table[i].pci33) &&
+			    (orig_m2 == table[i].m2) &&
+			    (orig_mips == table[i].m3)) {
+				orig_ratio_parm = table[i].ratio_parm;
+				break;
+			}
+		}
+
+		/* Search for the closest MIPS clock greater or equal to a preferred value */
+		for (i = 0; i < tabsz; i++) {
+			ASSERT(table[i].mipsclock ==
+			       sb_clock_rate(pll_type, table[i].n, table[i].m3));
+			if ((mipsclock <= table[i].mipsclock) &&
+			    ((sbclock == 0) || (sbclock <= table[i].sbclock)))
+				break;
+		}
+		if (i == tabsz) {
+			ret = FALSE;
+			goto done;
+		} else {
+			ret = TRUE;
+		}
+
+		/* No PLL change */
+		if ((orig_n == table[i].n) &&
+		    (orig_sb == table[i].sb) &&
+		    (orig_pci == table[i].pci33) &&
+		    (orig_m2 == table[i].m2) &&
+		    (orig_mips == table[i].m3))
+			goto done;
+
+		/* Set the PLL controls */
+		W_REG(clockcontrol_n, table[i].n);
+		W_REG(clockcontrol_sb, table[i].sb);
+		W_REG(clockcontrol_pci, table[i].pci33);
+		W_REG(&cc->clockcontrol_m2, table[i].m2);
+		W_REG(&cc->clockcontrol_mips, table[i].m3);
+
+		/* No ratio change */
+		if (orig_ratio_parm == table[i].ratio_parm)
+			goto end_fill;
+
+		new_ratio = table[i].ratio_parm;
+
+		icache_probe(&icache_size, &ic_lsize);
+
+		/* Preload the code into the cache */
+		start = ((ulong) &&start_fill) & ~(ic_lsize - 1);
+		end = ((ulong) &&end_fill + (ic_lsize - 1)) & ~(ic_lsize - 1);
+		while (start < end) {
+			cache_unroll(start, Fill_I);
+			start += ic_lsize;
+		}
+
+		/* Copy the handler */
+		start = (ulong) &handler;
+		end = (ulong) &afterhandler;
+		dst = KSEG1ADDR(0x180);
+		for (i = 0; i < (end - start); i += 4)
+			*((ulong *)(dst + i)) = *((ulong *)(start + i));
+		
+		/* Preload handler into the cache one line at a time */
+		for (i = 0; i < (end - start); i += 4)
+			cache_unroll(dst + i, Fill_I);
+
+		/* Clear BEV bit */
+		MTC0(C0_STATUS, 0, MFC0(C0_STATUS, 0) & ~ST0_BEV);
+
+		/* Enable interrupts */
+		MTC0(C0_STATUS, 0, MFC0(C0_STATUS, 0) | (ALLINTS | ST0_IE));
+
+		/* Enable MIPS timer interrupt */
+		if (!(mipsr = sb_setcore(sbh, SB_MIPS, 0)) &&
+		    !(mipsr = sb_setcore(sbh, SB_MIPS33, 0)))
+			ASSERT(mipsr);
+		W_REG(&mipsr->intmask, 1);
+
+	start_fill:
+		/* step 1, set clock ratios */
+		MTC0(C0_BROADCOM, 3, new_ratio);
+		MTC0(C0_BROADCOM, 1, 8);
+
+		/* step 2: program timer intr */
+		W_REG(&mipsr->timer, 100);
+		(void) R_REG(&mipsr->timer);
+
+		/* step 3, switch to async */
+		sync_mode = MFC0(C0_BROADCOM, 4);
+		MTC0(C0_BROADCOM, 4, 1 << 22);
+
+		/* step 4, set cfg active */
+		MTC0(C0_BROADCOM, 2, 0x9);
+
+
+		/* steps 5 & 6 */ 
+		__asm__ __volatile__ (
+			".set\tmips3\n\t"
+			"wait\n\t"
+			".set\tmips0"
+		);
+
+		/* step 7, clear cfg_active */
+		MTC0(C0_BROADCOM, 2, 0);
+		
+		/* Additional Step: set back to orig sync mode */
+		MTC0(C0_BROADCOM, 4, sync_mode);
+
+		/* step 8, fake soft reset */
+		MTC0(C0_BROADCOM, 5, MFC0(C0_BROADCOM, 5) | 4);
+
+	end_fill:
+		/* step 9 set watchdog timer */
+		sb_watchdog(sbh, 20);
+		(void) R_REG(&cc->chipid);
+
+		/* step 11 */
+		__asm__ __volatile__ (
+			".set\tmips3\n\t"
+			"sync\n\t"
+			"wait\n\t"
+			".set\tmips0"
+		);
+		while (1);
+	}
+
+done:
+	/* switch back to previous core */
+	sb_setcoreidx(sbh, idx);
+
+	return ret;
+}
+
+
+/* returns the ncdl value to be programmed into sdram_ncdl for calibration */
+uint32
+sb_memc_get_ncdl(void *sbh)
+{
+	sbmemcregs_t *memc;
+	uint32 ret = 0;
+	uint32 config, rd, wr, misc, dqsg, cd, sm, sd;
+	uint idx, rev;
+
+	idx = sb_coreidx(sbh);
+
+	memc = (sbmemcregs_t *)sb_setcore(sbh, SB_MEMC, 0);
+	if (memc == 0)
+		goto out;
+
+	rev = sb_corerev(sbh);
+
+	config = R_REG(&memc->config);
+	wr = R_REG(&memc->wrncdlcor);
+	rd = R_REG(&memc->rdncdlcor);
+	misc = R_REG(&memc->miscdlyctl);
+	dqsg = R_REG(&memc->dqsgatencdl);
+
+	rd &= MEMC_RDNCDLCOR_RD_MASK;
+	wr &= MEMC_WRNCDLCOR_WR_MASK; 
+	dqsg &= MEMC_DQSGATENCDL_G_MASK;
+
+	if (config & MEMC_CONFIG_DDR) {
+		ret = (wr << 16) | (rd << 8) | dqsg;
+	} else {
+		if (rev > 0)
+			cd = rd;
+		else
+			cd = (rd == MEMC_CD_THRESHOLD) ? rd : (wr + MEMC_CD_THRESHOLD);
+		sm = (misc & MEMC_MISC_SM_MASK) >> MEMC_MISC_SM_SHIFT;
+		sd = (misc & MEMC_MISC_SD_MASK) >> MEMC_MISC_SD_SHIFT;
+		ret = (sm << 16) | (sd << 8) | cd;
+	}
+
+out:
+	/* switch back to previous core */
+	sb_setcoreidx(sbh, idx);
+
+	return ret;
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c
new file mode 100644
index 000000000..b3469134e
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c
@@ -0,0 +1,563 @@
+/*
+ * Low-Level PCI and SB support for BCM47xx
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <typedefs.h>
+#include <pcicfg.h>
+#include <bcmdevs.h>
+#include <sbconfig.h>
+#include <sbpci.h>
+#include <osl.h>
+#include <bcmendian.h>
+#include <bcmutils.h>
+#include <sbutils.h>
+#include <bcmnvram.h>
+#include <hndmips.h>
+
+/* Can free sbpci_init() memory after boot */
+#ifndef linux
+#define __init
+#endif
+
+/* Emulated configuration space */
+static pci_config_regs sb_config_regs[SB_MAXCORES];
+
+/* Banned cores */
+static uint16 pci_ban[32] = { 0 };
+static uint pci_banned = 0;
+
+/* CardBus mode */
+static bool cardbus = FALSE;
+
+/* Disable PCI host core */
+static bool pci_disabled = FALSE;
+
+/*
+ * Functions for accessing external PCI configuration space
+ */
+
+/* Assume one-hot slot wiring */
+#define PCI_SLOT_MAX 16
+
+static uint32
+config_cmd(void *sbh, uint bus, uint dev, uint func, uint off)
+{
+	uint coreidx;
+	sbpciregs_t *regs;
+	uint32 addr = 0;
+
+	/* CardBusMode supports only one device */
+	if (cardbus && dev > 1)
+		return 0;
+
+	coreidx = sb_coreidx(sbh);
+	regs = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0);
+
+	/* Type 0 transaction */
+	if (bus == 1) {
+		/* Skip unwired slots */
+		if (dev < PCI_SLOT_MAX) {
+			/* Slide the PCI window to the appropriate slot */
+			W_REG(&regs->sbtopci1, SBTOPCI_CFG0 | ((1 << (dev + 16)) & SBTOPCI1_MASK));
+			addr = SB_PCI_CFG | ((1 << (dev + 16)) & ~SBTOPCI1_MASK) |
+				(func << 8) | (off & ~3);
+		}
+	}
+
+	/* Type 1 transaction */
+	else {
+		W_REG(&regs->sbtopci1, SBTOPCI_CFG1);
+		addr = SB_PCI_CFG | (bus << 16) | (dev << 11) | (func << 8) | (off & ~3);
+	}
+
+	sb_setcoreidx(sbh, coreidx);
+
+	return addr;
+}
+
+static int
+extpci_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	uint32 addr, *reg = NULL, val;
+	int ret = 0;
+
+	if (pci_disabled ||
+	    !(addr = config_cmd(sbh, bus, dev, func, off)) ||
+	    !(reg = (uint32 *) REG_MAP(addr, len)) ||
+	    BUSPROBE(val, reg))
+		val = 0xffffffff;
+
+	val >>= 8 * (off & 3);
+	if (len == 4)
+		*((uint32 *) buf) = val;
+	else if (len == 2)
+		*((uint16 *) buf) = (uint16) val;
+	else if (len == 1)
+		*((uint8 *) buf) = (uint8) val;
+	else
+		ret = -1;
+
+	if (reg)
+		REG_UNMAP(reg);
+
+	return ret;
+}
+
+static int
+extpci_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	uint32 addr, *reg = NULL, val;
+	int ret = 0;
+
+	if (pci_disabled ||
+	    !(addr = config_cmd(sbh, bus, dev, func, off)) ||
+	    !(reg = (uint32 *) REG_MAP(addr, len)) ||
+	    BUSPROBE(val, reg))
+		goto done;
+
+	if (len == 4)
+		val = *((uint32 *) buf);
+	else if (len == 2) {
+		val &= ~(0xffff << (8 * (off & 3)));
+		val |= *((uint16 *) buf) << (8 * (off & 3));
+	} else if (len == 1) {
+		val &= ~(0xff << (8 * (off & 3)));
+		val |= *((uint8 *) buf) << (8 * (off & 3));
+	} else
+		ret = -1;
+
+	W_REG(reg, val);
+
+ done:
+	if (reg)
+		REG_UNMAP(reg);
+
+	return ret;
+}
+
+/*
+ * Functions for accessing translated SB configuration space
+ */
+
+static int
+sb_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	pci_config_regs *cfg;
+
+	if (dev >= SB_MAXCORES || (off + len) > sizeof(pci_config_regs))
+		return -1;
+	cfg = &sb_config_regs[dev];
+
+	ASSERT(ISALIGNED(off, len));
+	ASSERT(ISALIGNED(buf, len));
+
+	if (len == 4)
+		*((uint32 *) buf) = ltoh32(*((uint32 *)((ulong) cfg + off)));
+	else if (len == 2)
+		*((uint16 *) buf) = ltoh16(*((uint16 *)((ulong) cfg + off)));
+	else if (len == 1)
+		*((uint8 *) buf) = *((uint8 *)((ulong) cfg + off));
+	else
+		return -1;
+
+	return 0;
+}
+
+static int
+sb_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	uint coreidx, n;
+	void *regs;
+	sbconfig_t *sb;
+	pci_config_regs *cfg;
+
+	if (dev >= SB_MAXCORES || (off + len) > sizeof(pci_config_regs))
+		return -1;
+	cfg = &sb_config_regs[dev];
+
+	ASSERT(ISALIGNED(off, len));
+	ASSERT(ISALIGNED(buf, len));
+
+	/* Emulate BAR sizing */
+	if (off >= OFFSETOF(pci_config_regs, base[0]) && off <= OFFSETOF(pci_config_regs, base[3]) &&
+	    len == 4 && *((uint32 *) buf) == ~0) {
+		coreidx = sb_coreidx(sbh);
+		if ((regs = sb_setcoreidx(sbh, dev))) {
+			sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+			/* Highest numbered address match register */
+			n = (R_REG(&sb->sbidlow) & SBIDL_AR_MASK) >> SBIDL_AR_SHIFT;
+			if (off == OFFSETOF(pci_config_regs, base[0]))
+				cfg->base[0] = ~(sb_size(R_REG(&sb->sbadmatch0)) - 1);
+			else if (off == OFFSETOF(pci_config_regs, base[1]) && n >= 1)
+				cfg->base[1] = ~(sb_size(R_REG(&sb->sbadmatch1)) - 1);
+			else if (off == OFFSETOF(pci_config_regs, base[2]) && n >= 2)
+				cfg->base[2] = ~(sb_size(R_REG(&sb->sbadmatch2)) - 1);
+			else if (off == OFFSETOF(pci_config_regs, base[3]) && n >= 3)
+				cfg->base[3] = ~(sb_size(R_REG(&sb->sbadmatch3)) - 1);
+		}
+		sb_setcoreidx(sbh, coreidx);
+		return 0;
+	}
+
+	if (len == 4)
+		*((uint32 *)((ulong) cfg + off)) = htol32(*((uint32 *) buf));
+	else if (len == 2)
+		*((uint16 *)((ulong) cfg + off)) = htol16(*((uint16 *) buf));
+	else if (len == 1)
+		*((uint8 *)((ulong) cfg + off)) = *((uint8 *) buf);
+	else
+		return -1;
+
+	return 0;
+}
+
+int
+sbpci_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	if (bus == 0)
+		return sb_read_config(sbh, bus, dev, func, off, buf, len);
+	else
+		return extpci_read_config(sbh, bus, dev, func, off, buf, len);
+}
+
+int
+sbpci_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
+{
+	if (bus == 0)
+		return sb_write_config(sbh, bus, dev, func, off, buf, len);
+	else
+		return extpci_write_config(sbh, bus, dev, func, off, buf, len);
+}
+
+void
+sbpci_ban(uint16 core)
+{
+	if (pci_banned < ARRAYSIZE(pci_ban))
+		pci_ban[pci_banned++] = core;
+}
+//#define CT4712_WR         1   /* Workaround for 4712 */
+
+int __init
+sbpci_init(void *sbh)
+{
+	uint chip, chiprev, chippkg, coreidx, host, i;
+	uint32 boardflags;
+	sbpciregs_t *pci;
+	sbconfig_t *sb;
+	pci_config_regs *cfg;
+	void *regs;
+	char varname[8];
+	int CT4712_WR;
+	uint wlidx = 0;
+	uint16 vendor, core;
+	uint8 class, subclass, progif;
+	uint32 val;
+	uint32 sbips_int_mask[] = { 0, SBIPS_INT1_MASK, SBIPS_INT2_MASK, SBIPS_INT3_MASK, SBIPS_INT4_MASK };
+	uint32 sbips_int_shift[] = { 0, 0, SBIPS_INT2_SHIFT, SBIPS_INT3_SHIFT, SBIPS_INT4_SHIFT };
+
+	chip = sb_chip(sbh);
+	chiprev = sb_chiprev(sbh);
+	chippkg = sb_chippkg(sbh);
+	coreidx = sb_coreidx(sbh);
+
+	if (!(pci = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0)))
+		return -1;
+	sb_core_reset(sbh, 0);
+
+	/* In some board, */ 
+	if(nvram_match("boardtype", "bcm94710dev"))
+		CT4712_WR = 0;
+	else
+		CT4712_WR = 1;
+
+	boardflags = (uint32) getintvar(NULL, "boardflags");
+
+	if ((chip == BCM4310_DEVICE_ID) && (chiprev == 0))
+		pci_disabled = TRUE;
+
+	/*
+	 * The 200-pin BCM4712 package does not bond out PCI. Even when
+	 * PCI is bonded out, some boards may leave the pins
+	 * floating.
+	 */
+	if (((chip == BCM4712_DEVICE_ID) && (chippkg == BCM4712SMALL_PKG_ID)) ||
+	    (boardflags & BFL_NOPCI) || CT4712_WR)
+		pci_disabled = TRUE;
+
+	/*
+	 * If the PCI core should not be touched (disabled, not bonded
+	 * out, or pins floating), do not even attempt to access core
+	 * registers. Otherwise, try to determine if it is in host
+	 * mode.
+	 */
+	if (pci_disabled)
+		host = 0;
+	else
+		host = !BUSPROBE(val, &pci->control);
+
+	if (!host) {
+		/* Disable PCI interrupts in client mode */
+		sb = (sbconfig_t *)((ulong) pci + SBCONFIGOFF);
+		W_REG(&sb->sbintvec, 0);
+
+		/* Disable the PCI bridge in client mode */
+		sbpci_ban(SB_PCI);
+		printf("PCI: Disabled\n");
+	} else {
+		/* Reset the external PCI bus and enable the clock */
+		W_REG(&pci->control, 0x5);		/* enable the tristate drivers */
+		W_REG(&pci->control, 0xd);		/* enable the PCI clock */
+		OSL_DELAY(150);				/* delay > 100 us */
+		W_REG(&pci->control, 0xf);		/* deassert PCI reset */
+		W_REG(&pci->arbcontrol, PCI_INT_ARB);	/* use internal arbiter */
+		OSL_DELAY(1);				/* delay 1 us */
+
+		/* Enable CardBusMode */
+		cardbus = nvram_match("cardbus", "1");
+		if (cardbus) {
+			printf("PCI: Enabling CardBus\n");
+			/* GPIO 1 resets the CardBus device on bcm94710ap */
+			sb_gpioout(sbh, 1, 1);
+			sb_gpioouten(sbh, 1, 1);
+			W_REG(&pci->sprom[0], R_REG(&pci->sprom[0]) | 0x400);
+		}
+
+		/* 64 MB I/O access window */
+		W_REG(&pci->sbtopci0, SBTOPCI_IO);
+		/* 64 MB configuration access window */
+		W_REG(&pci->sbtopci1, SBTOPCI_CFG0);
+		/* 1 GB memory access window */
+		W_REG(&pci->sbtopci2, SBTOPCI_MEM | SB_PCI_DMA);
+
+		/* Enable PCI bridge BAR0 prefetch and burst */
+		val = 6;
+		sbpci_write_config(sbh, 1, 0, 0, PCI_CFG_CMD, &val, sizeof(val));
+
+		/* Enable PCI interrupts */
+		W_REG(&pci->intmask, PCI_INTA);
+	}
+
+	/* Scan the SB bus */
+	bzero(sb_config_regs, sizeof(sb_config_regs));
+	for (cfg = sb_config_regs; cfg < &sb_config_regs[SB_MAXCORES]; cfg++) {
+		cfg->vendor = 0xffff;
+		if (!(regs = sb_setcoreidx(sbh, cfg - sb_config_regs)))
+			continue;
+		sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+
+		/* Read ID register and parse vendor and core */
+		val = R_REG(&sb->sbidhigh);
+		vendor = (val & SBIDH_VC_MASK) >> SBIDH_VC_SHIFT;
+		core = (val & SBIDH_CC_MASK) >> SBIDH_CC_SHIFT;
+		progif = 0;
+
+		/* Check if this core is banned */
+		for (i = 0; i < pci_banned; i++)
+			if (core == pci_ban[i])
+				break;
+		if (i < pci_banned)
+			continue;
+
+		/* Known vendor translations */
+		switch (vendor) {
+		case SB_VEND_BCM:
+			vendor = VENDOR_BROADCOM;
+			break;
+		}
+
+		/* Determine class based on known core codes */
+		switch (core) {
+		case SB_ILINE20:
+			class = PCI_CLASS_NET;
+			subclass = PCI_NET_ETHER;
+			core = BCM47XX_ILINE_ID;
+			break;
+		case SB_ILINE100:
+			class = PCI_CLASS_NET;
+			subclass = PCI_NET_ETHER;
+			core = BCM4610_ILINE_ID;
+			break;
+		case SB_ENET:
+			class = PCI_CLASS_NET;
+			subclass = PCI_NET_ETHER;
+			core = BCM47XX_ENET_ID;
+			break;
+		case SB_SDRAM:
+		case SB_MEMC:
+			class = PCI_CLASS_MEMORY;
+			subclass = PCI_MEMORY_RAM;
+			break;
+		case SB_PCI:
+			class = PCI_CLASS_BRIDGE;
+			subclass = PCI_BRIDGE_PCI;
+			break;
+		case SB_MIPS:
+		case SB_MIPS33:
+			class = PCI_CLASS_CPU;
+			subclass = PCI_CPU_MIPS;
+			break;
+		case SB_CODEC:
+			class = PCI_CLASS_COMM;
+			subclass = PCI_COMM_MODEM;
+			core = BCM47XX_V90_ID;
+			break;
+		case SB_USB:
+			class = PCI_CLASS_SERIAL;
+			subclass = PCI_SERIAL_USB;
+			progif = 0x10; /* OHCI */
+			core = BCM47XX_USB_ID;
+			break;
+		case SB_USB11H:
+			class = PCI_CLASS_SERIAL;
+			subclass = PCI_SERIAL_USB;
+			progif = 0x10; /* OHCI */
+			core = BCM47XX_USBH_ID;
+			break;
+		case SB_USB11D:
+			class = PCI_CLASS_SERIAL;
+			subclass = PCI_SERIAL_USB;
+			core = BCM47XX_USBD_ID;
+			break;
+		case SB_IPSEC:
+			class = PCI_CLASS_CRYPT;
+			subclass = PCI_CRYPT_NETWORK;
+			core = BCM47XX_IPSEC_ID;
+			break;
+		case SB_EXTIF:
+		case SB_CC:
+			class = PCI_CLASS_MEMORY;
+			subclass = PCI_MEMORY_FLASH;
+			break;
+		case SB_D11:
+			class = PCI_CLASS_NET;
+			subclass = PCI_NET_OTHER;
+			/* Let an nvram variable override this */
+			sprintf(varname, "wl%did", wlidx);
+			wlidx++;
+			if ((core = getintvar(NULL, varname)) == 0) {
+				if (chip == BCM4712_DEVICE_ID) {
+					if (chippkg == BCM4712SMALL_PKG_ID)
+						core = BCM4306_D11G_ID;
+					else
+						core = BCM4306_D11DUAL_ID;
+				} else {
+					/* 4310 */
+					core = BCM4310_D11B_ID;
+				}
+			}
+			break;
+
+		default:
+			class = subclass = progif = 0xff;
+			break;
+		}
+
+		/* Supported translations */
+		cfg->vendor = htol16(vendor);
+		cfg->device = htol16(core);
+		cfg->rev_id = chiprev;
+		cfg->prog_if = progif;
+		cfg->sub_class = subclass;
+		cfg->base_class = class;
+		cfg->base[0] = htol32(sb_base(R_REG(&sb->sbadmatch0)));
+		cfg->base[1] = htol32(sb_base(R_REG(&sb->sbadmatch1)));
+		cfg->base[2] = htol32(sb_base(R_REG(&sb->sbadmatch2)));
+		cfg->base[3] = htol32(sb_base(R_REG(&sb->sbadmatch3)));
+		cfg->base[4] = 0;
+		cfg->base[5] = 0;
+		if (class == PCI_CLASS_BRIDGE && subclass == PCI_BRIDGE_PCI)
+			cfg->header_type = PCI_HEADER_BRIDGE;
+		else
+			cfg->header_type = PCI_HEADER_NORMAL;
+		/* Save core interrupt flag */
+		cfg->int_pin = R_REG(&sb->sbtpsflag) & SBTPS_NUM0_MASK;
+		/* Default to MIPS shared interrupt 0 */
+		cfg->int_line = 0;
+		/* MIPS sbipsflag maps core interrupt flags to interrupts 1 through 4 */
+		if ((regs = sb_setcore(sbh, SB_MIPS, 0)) ||
+		    (regs = sb_setcore(sbh, SB_MIPS33, 0))) {
+			sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
+			val = R_REG(&sb->sbipsflag);
+			for (cfg->int_line = 1; cfg->int_line <= 4; cfg->int_line++) {
+				if (((val & sbips_int_mask[cfg->int_line]) >> sbips_int_shift[cfg->int_line]) == cfg->int_pin)
+					break;
+			}
+			if (cfg->int_line > 4)
+				cfg->int_line = 0;
+		}
+		/* Emulated core */
+		*((uint32 *) &cfg->sprom_control) = 0xffffffff;
+	}
+
+	sb_setcoreidx(sbh, coreidx);
+	return 0;
+}
+
+void
+sbpci_check(void *sbh)
+{
+	uint coreidx;
+	sbpciregs_t *pci;
+	uint32 sbtopci1;
+	uint32 buf[64], *ptr, i;
+	ulong pa;
+	volatile uint j;
+
+	coreidx = sb_coreidx(sbh);
+	pci = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0);
+
+	/* Clear the test array */
+	pa = (ulong) DMA_MAP(NULL, buf, sizeof(buf), DMA_RX, NULL);
+	ptr = (uint32 *) OSL_UNCACHED(&buf[0]);
+	memset(ptr, 0, sizeof(buf));
+
+	/* Point PCI window 1 to memory */
+	sbtopci1 = R_REG(&pci->sbtopci1);
+	W_REG(&pci->sbtopci1, SBTOPCI_MEM | (pa & SBTOPCI1_MASK));
+
+	/* Fill the test array via PCI window 1 */
+	ptr = (uint32 *) REG_MAP(SB_PCI_CFG + (pa & ~SBTOPCI1_MASK), sizeof(buf));
+	for (i = 0; i < ARRAYSIZE(buf); i++) {
+		for (j = 0; j < 2; j++);
+		W_REG(&ptr[i], i);
+	}
+	REG_UNMAP(ptr);
+
+	/* Restore PCI window 1 */
+	W_REG(&pci->sbtopci1, sbtopci1);
+
+	/* Check the test array */
+	DMA_UNMAP(NULL, pa, sizeof(buf), DMA_RX, NULL);
+	ptr = (uint32 *) OSL_UNCACHED(&buf[0]);
+	for (i = 0; i < ARRAYSIZE(buf); i++) {
+		if (ptr[i] != i)
+			break;
+	}
+
+	/* Change the clock if the test fails */
+	if (i < ARRAYSIZE(buf)) {
+		uint32 req, cur;
+
+		cur = sb_clock(sbh);
+		printf("PCI: Test failed at %d MHz\n", (cur + 500000) / 1000000);
+		for (req = 104000000; req < 176000000; req += 4000000) {
+			printf("PCI: Resetting to %d MHz\n", (req + 500000) / 1000000);
+			/* This will only reset if the clocks are valid and have changed */
+			sb_mips_setclock(sbh, req, 0, 0);
+		}
+		/* Should not reach here */
+		ASSERT(0);
+	}
+
+	sb_setcoreidx(sbh, coreidx);
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
new file mode 100644
index 000000000..e1b0050a4
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
@@ -0,0 +1,251 @@
+/*
+ * Generic setup routines for Broadcom MIPS boards
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/serialP.h>
+#include <linux/ide.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/reboot.h>
+
+#ifdef CONFIG_MTD_PARTITIONS
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#endif
+
+#include <typedefs.h>
+#include <bcmutils.h>
+#include <bcmnvram.h>
+#include <sbmips.h>
+#include <sbutils.h>
+#include <trxhdr.h>
+
+extern void bcm947xx_time_init(void);
+extern void bcm947xx_timer_setup(struct irqaction *irq);
+
+#ifdef CONFIG_REMOTE_DEBUG
+extern void set_debug_traps(void);
+extern void rs_kgdb_hook(struct serial_state *);
+extern void breakpoint(void);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+extern struct ide_ops std_ide_ops;
+#endif
+
+/* Global SB handle */
+void *bcm947xx_sbh = NULL;
+spinlock_t bcm947xx_sbh_lock = SPIN_LOCK_UNLOCKED;
+EXPORT_SYMBOL(bcm947xx_sbh);
+EXPORT_SYMBOL(bcm947xx_sbh_lock);
+
+/* Convenience */
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+
+/* Kernel command line */
+char arcs_cmdline[CL_SIZE] __initdata = CONFIG_CMDLINE;
+
+void
+bcm947xx_machine_restart(char *command)
+{
+	printk("Please stand by while rebooting the system...\n");
+
+	/* Set the watchdog timer to reset immediately */
+	__cli();
+	sb_watchdog(sbh, 1);
+	while (1);
+}
+
+void
+bcm947xx_machine_halt(void)
+{
+	printk("System halted\n");
+
+	/* Disable interrupts and watchdog and spin forever */
+	__cli();
+	sb_watchdog(sbh, 0);
+	while (1);
+}
+
+#ifdef CONFIG_SERIAL
+
+static struct serial_struct rs = {
+	line: 0,
+	flags: ASYNC_BOOT_AUTOCONF,
+	io_type: SERIAL_IO_MEM,
+};
+
+static void __init
+serial_add(void *regs, uint irq, uint baud_base, uint reg_shift)
+{
+	rs.iomem_base = regs;
+	rs.irq = irq + 2;
+	rs.baud_base = baud_base / 16;
+	rs.iomem_reg_shift = reg_shift;
+
+	early_serial_setup(&rs);
+
+	rs.line++;
+}
+
+static void __init
+serial_setup(void *sbh)
+{
+	sb_serial_init(sbh, serial_add);
+
+#ifdef CONFIG_REMOTE_DEBUG
+	/* Use the last port for kernel debugging */
+	if (rs.iomem_base)
+		rs_kgdb_hook(&rs);
+#endif
+}
+
+#endif /* CONFIG_SERIAL */
+
+void __init
+brcm_setup(void)
+{
+	char *value;
+
+	/* Get global SB handle */
+	sbh = sb_kattach();
+
+	/* Initialize clocks and interrupts */
+	sb_mips_init(sbh);
+
+#ifdef CONFIG_SERIAL
+	/* Initialize UARTs */
+	serial_setup(sbh);
+#endif
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+	ide_ops = &std_ide_ops;
+#endif
+
+	/* Override default command line arguments */
+	value = nvram_get("kernel_args");
+	if (value && strlen(value) && strncmp(value, "empty", 5))
+		strncpy(arcs_cmdline, value, sizeof(arcs_cmdline));
+
+
+	/* Generic setup */
+	_machine_restart = bcm947xx_machine_restart;
+	_machine_halt = bcm947xx_machine_halt;
+	_machine_power_off = bcm947xx_machine_halt;
+
+	board_time_init = bcm947xx_time_init;
+	board_timer_setup = bcm947xx_timer_setup;
+}
+
+const char *
+get_system_type(void)
+{
+	return "Broadcom BCM947XX";
+}
+
+void __init
+bus_error_init(void)
+{
+}
+
+#ifdef CONFIG_MTD_PARTITIONS
+
+static struct mtd_partition bcm947xx_parts[] = {
+	{ name: "pmon",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
+	{ name: "linux", offset: 0, size: 0, },
+	{ name: "rootfs", offset: 0, size: 0, },
+	{ name: "nvram", offset: 0, size: 0, },
+	{ name: "OpenWrt", offset: 0, size: 0, },
+	{ name: NULL, },
+};
+
+static int __init
+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
+{
+	struct trx_header *trx;
+	unsigned char buf[512];
+	int off;
+	size_t len;
+
+	trx = (struct trx_header *) buf;
+
+	for (off = (256*1024); off < size; off += mtd->erasesize) {
+		memset(buf, 0xe5, sizeof(buf));
+
+		/*
+		 * Read into buffer 
+		 */
+		if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
+		    len != sizeof(buf))
+			continue;
+
+		/* found a TRX header */
+		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
+			part->offset = le32_to_cpu(trx->offsets[1]);
+			part->size = le32_to_cpu(trx->len); 
+
+			part->size -= part->offset;
+			part->offset += off;
+
+			goto done;
+		}
+	}
+
+	printk(KERN_NOTICE
+	       "%s: Couldn't find root filesystem\n",
+	       mtd->name);
+	return -1;
+
+ done:
+		return part->size;
+}
+
+struct mtd_partition * __init
+init_mtd_partitions(struct mtd_info *mtd, size_t size)
+{
+
+	/* boot loader */
+	bcm947xx_parts[0].offset=0;
+	bcm947xx_parts[0].size=256*1024;
+
+	/* nvram */
+	bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
+	bcm947xx_parts[3].size   = size - bcm947xx_parts[3].offset;
+
+	/* Size linux (kernel and rootfs) */
+	bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
+	bcm947xx_parts[1].size   = bcm947xx_parts[3].offset - bcm947xx_parts[1].offset;
+
+	/* Find and size rootfs */
+	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
+		/* entirely jffs2 */
+		bcm947xx_parts[2].size = bcm947xx_parts[3].offset - bcm947xx_parts[2].offset; 
+		bcm947xx_parts[4].name = NULL;
+	} else {
+		/* legacy setup */
+		/* calculate leftover flash, and assign it to the jffs2 partition */
+		bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + bcm947xx_parts[2].size;
+		bcm947xx_parts[4].offset = ROUNDUP(bcm947xx_parts[4].offset, mtd->erasesize);
+		bcm947xx_parts[4].size = bcm947xx_parts[3].offset - bcm947xx_parts[4].offset;
+	}
+
+	return bcm947xx_parts;
+}
+
+EXPORT_SYMBOL(init_mtd_partitions);
+
+#endif
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sflash.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sflash.c
new file mode 100644
index 000000000..4f69880ca
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sflash.c
@@ -0,0 +1,346 @@
+/*
+ * Broadcom SiliconBackplane chipcommon serial flash interface
+ *
+ * Copyright 2004, Broadcom Corporation      
+ * All Rights Reserved.      
+ *       
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY      
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM      
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS      
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.      
+ *
+ * $Id$
+ */
+
+#include <typedefs.h>
+#include <bcmutils.h>
+#include <osl.h>
+#include <sbchipc.h>
+#include <sflash.h>
+
+/* Private global state */
+static struct sflash sflash;
+
+/* Issue a serial flash command */
+static INLINE void
+sflash_cmd(chipcregs_t *cc, uint opcode)
+{
+	W_REG(&cc->flashcontrol, SFLASH_START | opcode);
+	while (R_REG(&cc->flashcontrol) & SFLASH_BUSY);
+}
+
+/* Initialize serial flash access */
+struct sflash *
+sflash_init(chipcregs_t *cc)
+{
+	uint32 id, id2;
+
+	bzero(&sflash, sizeof(sflash));
+
+	sflash.type = R_REG(&cc->capabilities) & CAP_FLASH_MASK;
+
+	switch (sflash.type) {
+	case SFLASH_ST:
+		/* Probe for ST chips */
+		sflash_cmd(cc, SFLASH_ST_DP);
+		sflash_cmd(cc, SFLASH_ST_RES);
+		id = R_REG(&cc->flashdata);
+		switch (id) {
+		case 0x11:
+			/* ST M25P20 2 Mbit Serial Flash */
+			sflash.blocksize = 64 * 1024;
+			sflash.numblocks = 4;
+			break;
+		case 0x12:
+			/* ST M25P40 4 Mbit Serial Flash */
+			sflash.blocksize = 64 * 1024;
+			sflash.numblocks = 8;
+			break;
+		case 0x13:
+			/* ST M25P80 8 Mbit Serial Flash */
+			sflash.blocksize = 64 * 1024;
+			sflash.numblocks = 16;
+			break;
+		case 0x14:
+			/* ST M25P16 16 Mbit Serial Flash */
+			sflash.blocksize = 64 * 1024;
+			sflash.numblocks = 32;
+			break;
+		case 0xbf:
+			W_REG(&cc->flashaddress, 1);
+			sflash_cmd(cc, SFLASH_ST_RES);
+			id2 = R_REG(&cc->flashdata);
+			if (id2 == 0x44) {
+				/* SST M25VF80 4 Mbit Serial Flash */
+				sflash.blocksize = 64 * 1024;
+				sflash.numblocks = 8;
+			}
+			break;
+		}
+		break;
+
+	case SFLASH_AT:
+		/* Probe for Atmel chips */
+		sflash_cmd(cc, SFLASH_AT_STATUS);
+		id = R_REG(&cc->flashdata) & 0x3c;
+		switch (id) {
+		case 0x2c:
+			/* Atmel AT45DB161 16Mbit Serial Flash */
+			sflash.blocksize = 512;
+			sflash.numblocks = 4096;
+			break;
+		case 0x34:
+			/* Atmel AT45DB321 32Mbit Serial Flash */
+			sflash.blocksize = 512;
+			sflash.numblocks = 8192;
+			break;
+		case 0x3c:
+			/* Atmel AT45DB642 64Mbit Serial Flash */
+			sflash.blocksize = 1024;
+			sflash.numblocks = 8192;
+			break;
+		}
+		break;
+	}
+
+	sflash.size = sflash.blocksize * sflash.numblocks;
+	return sflash.size ? &sflash : NULL;
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+int
+sflash_read(chipcregs_t *cc, uint offset, uint len, uchar *buf)
+{
+	int cnt;
+	uint32 *from, *to;
+
+	if (!len)
+		return 0;
+
+	if ((offset + len) > sflash.size)
+		return -22;
+
+	if ((len >= 4) && (offset & 3))
+		cnt = 4 - (offset & 3);
+	else if ((len >= 4) && ((uint32)buf & 3))
+		cnt = 4 - ((uint32)buf & 3);
+	else
+		cnt = len;
+
+	from = (uint32 *)(CC_FLASH_BASE + offset);
+	to = (uint32 *)buf;
+
+	if (cnt < 4) {
+		bcopy(from, to, cnt);
+		return cnt;
+	}
+
+	while (cnt >= 4) {
+		*to++ = *from++;
+		cnt -= 4;
+	}
+
+	return (len - cnt);
+}
+
+/* Poll for command completion. Returns zero when complete. */
+int
+sflash_poll(chipcregs_t *cc, uint offset)
+{
+	if (offset >= sflash.size)
+		return -22;
+
+	switch (sflash.type) {
+	case SFLASH_ST:
+		/* Check for ST Write In Progress bit */
+		sflash_cmd(cc, SFLASH_ST_RDSR);
+		return R_REG(&cc->flashdata) & SFLASH_ST_WIP;
+	case SFLASH_AT:
+		/* Check for Atmel Ready bit */
+		sflash_cmd(cc, SFLASH_AT_STATUS);
+		return !(R_REG(&cc->flashdata) & SFLASH_AT_READY);
+	}
+
+	return 0;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+int
+sflash_write(chipcregs_t *cc, uint offset, uint len, const uchar *buf)
+{
+	struct sflash *sfl;
+	int ret = 0;
+	uint32 page, byte, mask;
+
+	if (!len)
+		return 0;
+
+	if ((offset + len) > sflash.size)
+		return -22;
+
+	sfl = &sflash;
+	switch (sfl->type) {
+	case SFLASH_ST:
+		ret = 1;
+		/* Enable writes */
+		sflash_cmd(cc, SFLASH_ST_WREN);
+		W_REG(&cc->flashaddress, offset);
+		W_REG(&cc->flashdata, *buf);
+		/* Page program */
+		sflash_cmd(cc, SFLASH_ST_PP);
+		break;
+	case SFLASH_AT:
+		mask = sfl->blocksize - 1;
+		page = (offset & ~mask) << 1;
+		byte = offset & mask;
+		/* Read main memory page into buffer 1 */
+		if (byte || len < sfl->blocksize) {
+			W_REG(&cc->flashaddress, page);
+			sflash_cmd(cc, SFLASH_AT_BUF1_LOAD);
+			/* 250 us for AT45DB321B */
+			SPINWAIT(sflash_poll(cc, offset), 1000);
+			ASSERT(!sflash_poll(cc, offset));
+		}
+		/* Write into buffer 1 */
+		for (ret = 0; ret < len && byte < sfl->blocksize; ret++) {
+			W_REG(&cc->flashaddress, byte++);
+			W_REG(&cc->flashdata, *buf++);
+			sflash_cmd(cc, SFLASH_AT_BUF1_WRITE);
+		}
+		/* Write buffer 1 into main memory page */
+		W_REG(&cc->flashaddress, page);
+		sflash_cmd(cc, SFLASH_AT_BUF1_PROGRAM);
+		break;
+	}
+
+	return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+int
+sflash_erase(chipcregs_t *cc, uint offset)
+{
+	struct sflash *sfl;
+
+	if (offset >= sflash.size)
+		return -22;
+
+	sfl = &sflash;
+	switch (sfl->type) {
+	case SFLASH_ST:
+		sflash_cmd(cc, SFLASH_ST_WREN);
+		W_REG(&cc->flashaddress, offset);
+		sflash_cmd(cc, SFLASH_ST_SE);
+		return sfl->blocksize;
+	case SFLASH_AT:
+		W_REG(&cc->flashaddress, offset << 1);
+		sflash_cmd(cc, SFLASH_AT_PAGE_ERASE);
+		return sfl->blocksize;
+	}
+
+	return 0;
+}
+
+/*
+ * writes the appropriate range of flash, a NULL buf simply erases
+ * the region of flash
+ */
+int
+sflash_commit(chipcregs_t *cc, uint offset, uint len, const uchar *buf)
+{
+	struct sflash *sfl;
+	uchar *block = NULL, *cur_ptr, *blk_ptr;
+	uint blocksize = 0, mask, cur_offset, cur_length, cur_retlen, remainder;
+	uint blk_offset, blk_len, copied;
+	int bytes, ret = 0;
+
+	/* Check address range */
+	if (len <= 0)
+		return 0;
+
+	sfl = &sflash;
+	if ((offset + len) > sfl->size)
+		return -1;
+
+	blocksize = sfl->blocksize;
+	mask = blocksize - 1;
+
+	/* Allocate a block of mem */
+	if (!(block = MALLOC(blocksize)))
+		return -1;
+
+	while (len) {
+		/* Align offset */
+		cur_offset = offset & ~mask;
+		cur_length = blocksize;
+		cur_ptr = block;
+
+		remainder = blocksize - (offset & mask);
+		if (len < remainder)
+			cur_retlen = len;
+		else
+			cur_retlen = remainder;
+
+		/* buf == NULL means erase only */
+		if (buf) {
+			/* Copy existing data into holding block if necessary */
+			if ((offset & mask)  || (len < blocksize)) {
+				blk_offset = cur_offset;
+				blk_len = cur_length;
+				blk_ptr = cur_ptr;
+
+				/* Copy entire block */
+				while(blk_len) {
+					copied = sflash_read(cc, blk_offset, blk_len, blk_ptr); 
+					blk_offset += copied;
+					blk_len -= copied;
+					blk_ptr += copied;
+				}
+			}
+
+			/* Copy input data into holding block */
+			memcpy(cur_ptr + (offset & mask), buf, cur_retlen);
+		}
+
+		/* Erase block */
+		if ((ret = sflash_erase(cc, (uint) cur_offset)) < 0)
+			goto done;
+		while (sflash_poll(cc, (uint) cur_offset));
+
+		/* buf == NULL means erase only */
+		if (!buf) {
+			offset += cur_retlen;
+			len -= cur_retlen;
+			continue;
+		}
+
+		/* Write holding block */
+		while (cur_length > 0) {
+			if ((bytes = sflash_write(cc,
+						  (uint) cur_offset,
+						  (uint) cur_length,
+						  (uchar *) cur_ptr)) < 0) {
+				ret = bytes;
+				goto done;
+			}
+			while (sflash_poll(cc, (uint) cur_offset));
+			cur_offset += bytes;
+			cur_length -= bytes;
+			cur_ptr += bytes;
+		}
+
+		offset += cur_retlen;
+		len -= cur_retlen;
+		buf += cur_retlen;
+	}
+
+done:
+	if (block)
+		MFREE(block, blocksize);
+	return ret;
+}
+
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/time.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/time.c
new file mode 100644
index 000000000..9b7574663
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/time.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/serial_reg.h>
+#include <linux/interrupt.h>
+#include <asm/addrspace.h>
+#include <asm/io.h>
+#include <asm/time.h>
+
+#include <typedefs.h>
+#include <bcmnvram.h>
+#include <sbconfig.h>
+#include <sbextif.h>
+#include <sbutils.h>
+#include <sbmips.h>
+
+/* Global SB handle */
+extern void *bcm947xx_sbh;
+extern spinlock_t bcm947xx_sbh_lock;
+
+/* Convenience */
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+
+extern int panic_timeout;
+static int watchdog = 0;
+static u8 *mcr = NULL;
+
+void __init
+bcm947xx_time_init(void)
+{
+	unsigned int hz;
+	extifregs_t *eir;
+
+	/*
+	 * Use deterministic values for initial counter interrupt
+	 * so that calibrate delay avoids encountering a counter wrap.
+	 */
+	write_c0_count(0);
+	write_c0_compare(0xffff);
+
+	if (!(hz = sb_mips_clock(sbh)))
+		hz = 100000000;
+
+	printk("CPU: BCM%04x rev %d at %d MHz\n", sb_chip(sbh), sb_chiprev(sbh),
+	       (hz + 500000) / 1000000);
+
+	/* Set MIPS counter frequency for fixed_rate_gettimeoffset() */
+	mips_hpt_frequency = hz / 2;
+
+	/* Set watchdog interval in ms */
+	watchdog = simple_strtoul(nvram_safe_get("watchdog"), NULL, 0);
+	
+   	/* Please set the watchdog to 3 sec if it is less than 3 but not equal to 0 */
+	if (watchdog > 0) {
+		if (watchdog < 3000)
+			watchdog = 3000;
+	}
+
+
+	/* Set panic timeout in seconds */
+	panic_timeout = watchdog / 1000;
+
+	/* Setup blink */
+	if ((eir = sb_setcore(sbh, SB_EXTIF, 0))) {
+		sbconfig_t *sb = (sbconfig_t *)((unsigned int) eir + SBCONFIGOFF);
+		unsigned long base = EXTIF_CFGIF_BASE(sb_base(readl(&sb->sbadmatch1)));
+		mcr = (u8 *) ioremap_nocache(base + UART_MCR, 1);
+	}
+}
+
+static void
+bcm947xx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	/* Generic MIPS timer code */
+	timer_interrupt(irq, dev_id, regs);
+
+	/* Set the watchdog timer to reset after the specified number of ms */
+	if (watchdog > 0)
+		sb_watchdog(sbh, WATCHDOG_CLOCK / 1000 * watchdog);
+
+#ifdef	CONFIG_HWSIM
+	(*((int *)0xa0000f1c))++;
+#else
+	/* Blink one of the LEDs in the external UART */
+	if (mcr && !(jiffies % (HZ/2)))
+		writeb(readb(mcr) ^ UART_MCR_OUT2, mcr);
+#endif
+}
+
+static struct irqaction bcm947xx_timer_irqaction = {
+	bcm947xx_timer_interrupt,
+	SA_INTERRUPT,
+	0,
+	"timer",
+	NULL,
+	NULL
+};
+
+void __init
+bcm947xx_timer_setup(struct irqaction *irq)
+{
+	/* Enable the timer interrupt */
+	setup_irq(7, &bcm947xx_timer_irqaction);
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/generic/Makefile b/package/linux/kernel-source/arch/mips/brcm-boards/generic/Makefile
new file mode 100644
index 000000000..e16a80e56
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/generic/Makefile
@@ -0,0 +1,26 @@
+#
+# Makefile for generic Broadcom MIPS boards
+#
+# Copyright 2004, Broadcom Corporation
+# All Rights Reserved.
+# 
+# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+#
+# $Id$
+#
+
+.S.s:
+	$(CPP) $(AFLAGS) $< -o $*.s
+.S.o:
+	$(CC) $(AFLAGS) -c $< -o $*.o
+
+O_TARGET	:= brcm.o
+
+obj-y		:= int-handler.o irq.o
+
+obj-$(CONFIG_REMOTE_DEBUG)	+= gdb_hook.o
+
+include $(TOPDIR)/Rules.make
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/generic/gdb_hook.c b/package/linux/kernel-source/arch/mips/brcm-boards/generic/gdb_hook.c
new file mode 100644
index 000000000..1345289bb
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/generic/gdb_hook.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2004, Broadcom Corporation      
+ * All Rights Reserved.      
+ *       
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY      
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM      
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS      
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.      
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.
+ *
+ * ########################################################################
+ *
+ * This is the interface to the remote debugger stub.
+ *
+ */
+
+#include <linux/serialP.h>
+#include <linux/serial_reg.h>
+
+#include <asm/serial.h>
+#include <asm/io.h>
+
+static struct async_struct kdb_port_info = {0};
+
+static __inline__ unsigned int serial_in(struct async_struct *info, int offset)
+{
+	return readb((unsigned long) info->iomem_base +
+		     (offset<<info->iomem_reg_shift));
+}
+
+static __inline__ void serial_out(struct async_struct *info, int offset,
+				  int value)
+{
+	writeb(value, (unsigned long) info->iomem_base +
+	       (offset<<info->iomem_reg_shift));
+}
+
+void rs_kgdb_hook(struct serial_state *ser) {
+	int t;
+
+	kdb_port_info.state = ser;
+	kdb_port_info.magic = SERIAL_MAGIC;
+	kdb_port_info.port = ser->port;
+	kdb_port_info.flags = ser->flags;
+	kdb_port_info.iomem_base = ser->iomem_base;
+	kdb_port_info.iomem_reg_shift = ser->iomem_reg_shift;
+	kdb_port_info.MCR = UART_MCR_DTR | UART_MCR_RTS;
+
+	/*
+	 * Clear all interrupts
+	 */
+	serial_in(&kdb_port_info, UART_LSR);
+	serial_in(&kdb_port_info, UART_RX);
+	serial_in(&kdb_port_info, UART_IIR);
+	serial_in(&kdb_port_info, UART_MSR);
+
+	/*
+	 * Now, initialize the UART 
+	 */
+	serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8);	/* reset DLAB */
+	serial_out(&kdb_port_info, UART_MCR, kdb_port_info.MCR);
+	
+	/*
+	 * and set the speed of the serial port
+	 * (currently hardwired to 115200 8N1
+	 */
+
+	/* baud rate is fixed to 115200 (is this sufficient?)*/
+	t = kdb_port_info.state->baud_base / 115200;	
+	/* set DLAB */
+	serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8 | UART_LCR_DLAB);
+	serial_out(&kdb_port_info, UART_DLL, t & 0xff);/* LS of divisor */
+	serial_out(&kdb_port_info, UART_DLM, t >> 8);  /* MS of divisor */
+	/* reset DLAB */
+	serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8);
+}
+
+int putDebugChar(char c)
+{
+
+	if (!kdb_port_info.state) { 	/* need to init device first */
+		return 0;
+	}
+
+	while ((serial_in(&kdb_port_info, UART_LSR) & UART_LSR_THRE) == 0)
+		;
+
+	serial_out(&kdb_port_info, UART_TX, c);
+
+	return 1;
+}
+
+char getDebugChar(void) 
+{
+	if (!kdb_port_info.state) { 	/* need to init device first */
+		return 0;
+	}
+
+	while (!(serial_in(&kdb_port_info, UART_LSR) & 1))
+		;
+
+	return(serial_in(&kdb_port_info, UART_RX));
+}
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/generic/int-handler.S b/package/linux/kernel-source/arch/mips/brcm-boards/generic/int-handler.S
new file mode 100644
index 000000000..de8f115c2
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/generic/int-handler.S
@@ -0,0 +1,51 @@
+/*
+ * Generic interrupt handler for Broadcom MIPS boards
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+/*
+ *	MIPS IRQ	Source
+ *      --------        ------
+ *             0	Software (ignored)
+ *             1        Software (ignored)
+ *             2        Combined hardware interrupt (hw0)
+ *             3        Hardware
+ *             4        Hardware
+ *             5        Hardware
+ *             6        Hardware
+ *             7        R4k timer
+ */
+
+	.text
+	.set	noreorder
+	.set	noat
+	.align	5
+	NESTED(brcmIRQ, PT_SIZE, sp)
+	SAVE_ALL
+	CLI
+	.set	at
+    .set    noreorder
+
+	jal	    brcm_irq_dispatch
+	 move	a0, sp
+
+	j	    ret_from_irq
+	 nop
+		
+	END(brcmIRQ)
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/generic/irq.c b/package/linux/kernel-source/arch/mips/brcm-boards/generic/irq.c
new file mode 100644
index 000000000..157c6b380
--- /dev/null
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/generic/irq.c
@@ -0,0 +1,130 @@
+/*
+ * Generic interrupt control functions for Broadcom MIPS boards
+ *
+ * Copyright 2004, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id$
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <asm/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/gdb-stub.h>
+
+#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
+
+extern asmlinkage void brcmIRQ(void);
+extern asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs);
+
+void
+brcm_irq_dispatch(struct pt_regs *regs)
+{
+	u32 cause;
+
+	cause = read_c0_cause() &
+		read_c0_status() &
+		CAUSEF_IP;
+
+#ifdef CONFIG_KERNPROF
+	change_c0_status(cause | 1, 1);
+#else
+	clear_c0_status(cause);
+#endif
+
+	if (cause & CAUSEF_IP7)
+		do_IRQ(7, regs);
+	if (cause & CAUSEF_IP2)
+		do_IRQ(2, regs);
+	if (cause & CAUSEF_IP3)
+		do_IRQ(3, regs);
+	if (cause & CAUSEF_IP4)
+		do_IRQ(4, regs);
+	if (cause & CAUSEF_IP5)
+		do_IRQ(5, regs);
+	if (cause & CAUSEF_IP6)
+		do_IRQ(6, regs);
+}
+
+static void
+enable_brcm_irq(unsigned int irq)
+{
+	if (irq < 8)
+		set_c0_status(1 << (irq + 8));
+	else
+		set_c0_status(IE_IRQ0);
+}
+
+static void
+disable_brcm_irq(unsigned int irq)
+{
+	if (irq < 8)
+		clear_c0_status(1 << (irq + 8));
+	else
+		clear_c0_status(IE_IRQ0);
+}
+
+static void
+ack_brcm_irq(unsigned int irq)
+{
+	/* Already done in brcm_irq_dispatch */
+}
+
+static unsigned int
+startup_brcm_irq(unsigned int irq)
+{ 
+	enable_brcm_irq(irq);
+
+	return 0; /* never anything pending */
+}
+
+static void
+end_brcm_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+		enable_brcm_irq(irq);
+}
+
+static struct hw_interrupt_type brcm_irq_type = {
+	typename: "MIPS",
+	startup: startup_brcm_irq,
+	shutdown: disable_brcm_irq,
+	enable: enable_brcm_irq,
+	disable: disable_brcm_irq,
+	ack: ack_brcm_irq,
+	end: end_brcm_irq,
+	NULL
+};
+
+void __init
+init_IRQ(void)
+{
+	int i;
+
+	for (i = 0; i < NR_IRQS; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		irq_desc[i].action = 0;
+		irq_desc[i].depth = 1;
+		irq_desc[i].handler = &brcm_irq_type;
+	}
+
+    	set_except_vector(0, brcmIRQ);
+	change_c0_status(ST0_IM, ALLINTS);
+
+#ifdef CONFIG_REMOTE_DEBUG
+	printk("Breaking into debugger...\n");
+	set_debug_traps();
+	breakpoint(); 
+#endif
+}