update work in progress rewritten bcm947xx code. wifi and usb seem to be working, flash access still has problems

SVN-Revision: 6276

1 files changed, 0 insertions, 475 deletions

diff --git a/target/linux/brcm47xx-2.6/patches/110-flash_map.patch b/target/linux/brcm47xx-2.6/patches/110-flash_map.patch
index 110e726..bf809e7 100644
--- a/target/linux/brcm47xx-2.6/patches/110-flash_map.patch
+++ b/target/linux/brcm47xx-2.6/patches/110-flash_map.patch
@@ -1,478 +1,3 @@
-diff -urN linux.old/drivers/mtd/maps/bcm47xx-flash.c linux.dev/drivers/mtd/maps/bcm47xx-flash.c
---- linux.old/drivers/mtd/maps/bcm47xx-flash.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/mtd/maps/bcm47xx-flash.c	2007-01-03 02:26:02.000000000 +0100
-@@ -0,0 +1,471 @@
-+/*
-+ *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
-+ *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
-+ *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
-+ *
-+ *  original functions for finding root filesystem from Mike Baker 
-+ *
-+ *  This program is free software; you can redistribute  it and/or modify it
-+ *  under  the terms of  the GNU General  Public License as published by the
-+ *  Free Software Foundation;  either version 2 of the  License, or (at your
-+ *  option) any later version.
-+ *
-+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
-+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
-+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
-+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
-+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
-+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
-+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-+ *
-+ *  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.,
-+ *  675 Mass Ave, Cambridge, MA 02139, USA.
-+ * 
-+ *  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.
-+ *
-+ *  Flash mapping for BCM947XX boards
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/wait.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/map.h>
-+#ifdef CONFIG_MTD_PARTITIONS
-+#include <linux/mtd/partitions.h>
-+#endif
-+#include <linux/squashfs_fs.h>
-+#include <linux/jffs2.h>
-+#include <linux/crc32.h>
-+#include <linux/ssb/ssb.h>
-+#include <asm/io.h>
-+
-+
-+#define TRX_MAGIC	0x30524448	/* "HDR0" */
-+#define TRX_VERSION	1
-+#define TRX_MAX_LEN	0x3A0000
-+#define TRX_NO_HEADER	1		/* Do not write TRX header */	
-+#define TRX_GZ_FILES	0x2     /* Contains up to TRX_MAX_OFFSET individual gzip files */
-+#define TRX_MAX_OFFSET	3
-+
-+struct trx_header {
-+	u32 magic;		/* "HDR0" */
-+	u32 len;		/* Length of file including header */
-+	u32 crc32;		/* 32-bit CRC from flag_version to end of file */
-+	u32 flag_version;	/* 0:15 flags, 16:31 version */
-+	u32 offsets[TRX_MAX_OFFSET];	/* Offsets of partitions from start of header */
-+};
-+
-+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
-+#define NVRAM_SPACE 0x8000
-+#define WINDOW_ADDR 0x1fc00000
-+#define WINDOW_SIZE 0x400000
-+#define BUSWIDTH 2
-+
-+extern struct ssb_bus ssb;
-+static struct mtd_info *bcm947xx_mtd;
-+
-+static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+#define MIPS_MEMCPY_ALIGN 4
-+	map_word ret;
-+	ssize_t transfer;
-+	ssize_t done = 0;
-+	if ((len >= MIPS_MEMCPY_ALIGN) && (!(from & (MIPS_MEMCPY_ALIGN - 1))) && (!(((unsigned int)to & (MIPS_MEMCPY_ALIGN - 1))))) {
-+		done = len & ~(MIPS_MEMCPY_ALIGN - 1);
-+		memcpy_fromio(to, map->virt + from, done);
-+	}
-+	while (done < len) {
-+		ret = map->read(map, from + done);
-+		transfer = len - done;
-+		if (transfer > map->bankwidth)
-+			transfer = map->bankwidth;
-+		memcpy((void *)((unsigned long)to + done), &ret.x[0], transfer);
-+		done += transfer;
-+	}
-+}
-+
-+static struct map_info bcm947xx_map = {
-+	name: "Physically mapped flash",
-+	size: WINDOW_SIZE,
-+	bankwidth: BUSWIDTH,
-+	phys: WINDOW_ADDR,
-+};
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+
-+static struct mtd_partition bcm947xx_parts[] = {
-+	{ name: "cfe",	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_cfe_size(struct mtd_info *mtd, size_t size)
-+{
-+	struct trx_header *trx;
-+	unsigned char buf[512];
-+	int off;
-+	size_t len;
-+	int blocksize;
-+
-+	trx = (struct trx_header *) buf;
-+
-+	blocksize = mtd->erasesize;
-+	if (blocksize < 0x10000)
-+		blocksize = 0x10000;
-+
-+	for (off = (128*1024); off < size; off += blocksize) {
-+		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) {
-+			goto found;
-+		}
-+	}
-+
-+	printk(KERN_NOTICE
-+	       "%s: Couldn't find bootloader size\n",
-+	       mtd->name);
-+	return -1;
-+
-+ found:
-+	printk(KERN_NOTICE "bootloader size: %d\n", off);
-+	return off;
-+
-+}
-+
-+/*
-+ * Copied from mtdblock.c
-+ *
-+ * Cache stuff...
-+ * 
-+ * Since typical flash erasable sectors are much larger than what Linux's
-+ * buffer cache can handle, we must implement read-modify-write on flash
-+ * sectors for each block write requests.  To avoid over-erasing flash sectors
-+ * and to speed things up, we locally cache a whole flash sector while it is
-+ * being written to until a different sector is required.
-+ */
-+
-+static void erase_callback(struct erase_info *done)
-+{
-+	wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
-+	wake_up(wait_q);
-+}
-+
-+static int erase_write (struct mtd_info *mtd, unsigned long pos, 
-+			int len, const char *buf)
-+{
-+	struct erase_info erase;
-+	DECLARE_WAITQUEUE(wait, current);
-+	wait_queue_head_t wait_q;
-+	size_t retlen;
-+	int ret;
-+
-+	/*
-+	 * First, let's erase the flash block.
-+	 */
-+
-+	init_waitqueue_head(&wait_q);
-+	erase.mtd = mtd;
-+	erase.callback = erase_callback;
-+	erase.addr = pos;
-+	erase.len = len;
-+	erase.priv = (u_long)&wait_q;
-+
-+	set_current_state(TASK_INTERRUPTIBLE);
-+	add_wait_queue(&wait_q, &wait);
-+
-+	ret = mtd->erase(mtd, &erase);
-+	if (ret) {
-+		set_current_state(TASK_RUNNING);
-+		remove_wait_queue(&wait_q, &wait);
-+		printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
-+				     "on \"%s\" failed\n",
-+			pos, len, mtd->name);
-+		return ret;
-+	}
-+
-+	schedule();  /* Wait for erase to finish. */
-+	remove_wait_queue(&wait_q, &wait);
-+
-+	/*
-+	 * Next, writhe data to flash.
-+	 */
-+
-+	ret = mtd->write (mtd, pos, len, &retlen, buf);
-+	if (ret)
-+		return ret;
-+	if (retlen != len)
-+		return -EIO;
-+	return 0;
-+}
-+
-+
-+
-+
-+static int __init
-+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
-+{
-+	struct trx_header trx, *trx2;
-+	unsigned char buf[512], *block;
-+	int off, blocksize;
-+	u32 i, crc = ~0;
-+	size_t len;
-+	struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
-+
-+	blocksize = mtd->erasesize;
-+	if (blocksize < 0x10000)
-+		blocksize = 0x10000;
-+
-+	for (off = (128*1024); off < size; off += blocksize) {
-+		memset(&trx, 0xe5, sizeof(trx));
-+
-+		/*
-+		 * Read into buffer 
-+		 */
-+		if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
-+		    len != sizeof(trx))
-+			continue;
-+
-+		/* found a TRX header */
-+		if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
-+			part->offset = le32_to_cpu(trx.offsets[2]) ? : 
-+				le32_to_cpu(trx.offsets[1]);
-+			part->size = le32_to_cpu(trx.len); 
-+
-+			part->size -= part->offset;
-+			part->offset += off;
-+
-+			goto found;
-+		}
-+	}
-+
-+	printk(KERN_NOTICE
-+	       "%s: Couldn't find root filesystem\n",
-+	       mtd->name);
-+	return -1;
-+
-+ found:
-+	if (part->size == 0)
-+		return 0;
-+	
-+	if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
-+		return 0;
-+
-+	if (*((__u32 *) buf) == SQUASHFS_MAGIC) {
-+		printk(KERN_INFO "%s: Filesystem type: squashfs, size=0x%x\n", mtd->name, (u32) sb->bytes_used);
-+
-+		/* Update the squashfs partition size based on the superblock info */
-+		part->size = sb->bytes_used;
-+		len = part->offset + part->size;
-+		len +=  (mtd->erasesize - 1);
-+		len &= ~(mtd->erasesize - 1);
-+		part->size = len - part->offset;
-+	} else if (*((__u16 *) buf) == JFFS2_MAGIC_BITMASK) {
-+		printk(KERN_INFO "%s: Filesystem type: jffs2\n", mtd->name);
-+
-+		/* Move the squashfs outside of the trx */
-+		part->size = 0;
-+	} else {
-+		printk(KERN_INFO "%s: Filesystem type: unknown\n", mtd->name);
-+		return 0;
-+	}
-+
-+	if (trx.len != part->offset + part->size - off) {
-+		/* Update the trx offsets and length */
-+		trx.len = part->offset + part->size - off;
-+	
-+		/* Update the trx crc32 */
-+		for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
-+			if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
-+				return 0;
-+			crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
-+		}
-+		trx.crc32 = crc;
-+
-+		/* read first eraseblock from the trx */
-+		block = kmalloc(mtd->erasesize, GFP_KERNEL);
-+		trx2 = (struct trx_header *) block;
-+		if (mtd->read(mtd, off, mtd->erasesize, &len, block) || len != mtd->erasesize) {
-+			printk("Error accessing the first trx eraseblock\n");
-+			return 0;
-+		}
-+		
-+		printk("Updating TRX offsets and length:\n");
-+		printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
-+		printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n",   trx.offsets[0],   trx.offsets[1],   trx.offsets[2],   trx.len, trx.crc32);
-+
-+		/* Write updated trx header to the flash */
-+		memcpy(block, &trx, sizeof(trx));
-+		if (mtd->unlock)
-+			mtd->unlock(mtd, off, mtd->erasesize);
-+		erase_write(mtd, off, mtd->erasesize, block);
-+		if (mtd->sync)
-+			mtd->sync(mtd);
-+		kfree(block);
-+		printk("Done\n");
-+	}
-+	
-+	return part->size;
-+}
-+
-+struct mtd_partition * __init
-+init_mtd_partitions(struct mtd_info *mtd, size_t size)
-+{
-+	int cfe_size;
-+
-+	if ((cfe_size = find_cfe_size(mtd,size)) < 0)
-+		return NULL;
-+
-+	/* boot loader */
-+	bcm947xx_parts[0].offset = 0;
-+	bcm947xx_parts[0].size   = cfe_size;
-+
-+	/* nvram */
-+	if (cfe_size != 384 * 1024) {
-+		bcm947xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+		bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+	} else {
-+		/* nvram (old 128kb config partition on netgear wgt634u) */
-+		bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
-+		bcm947xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-+	}
-+
-+	/* linux (kernel and rootfs) */
-+	if (cfe_size != 384 * 1024) {
-+		bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
-+		bcm947xx_parts[1].size   = bcm947xx_parts[3].offset - 
-+			bcm947xx_parts[1].offset;
-+	} else {
-+		/* do not count the elf loader, which is on one block */
-+		bcm947xx_parts[1].offset = bcm947xx_parts[0].size + 
-+			bcm947xx_parts[3].size + mtd->erasesize;
-+		bcm947xx_parts[1].size   = size - 
-+			bcm947xx_parts[0].size - 
-+			(2*bcm947xx_parts[3].size) - 
-+			mtd->erasesize;
-+	}
-+
-+	/* find and size rootfs */
-+	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
-+		/* entirely jffs2 */
-+		bcm947xx_parts[4].name = NULL;
-+		bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - 
-+				bcm947xx_parts[3].size;
-+	} else {
-+		/* legacy setup */
-+		/* calculate leftover flash, and assign it to the jffs2 partition */
-+		if (cfe_size != 384 * 1024) {
-+			bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + 
-+				bcm947xx_parts[2].size;
-+			if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
-+				bcm947xx_parts[4].offset += mtd->erasesize - 
-+					(bcm947xx_parts[4].offset % mtd->erasesize);
-+			}
-+			bcm947xx_parts[4].size = bcm947xx_parts[3].offset - 
-+				bcm947xx_parts[4].offset;
-+		} else {
-+			bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + 
-+				bcm947xx_parts[2].size;
-+			if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
-+				bcm947xx_parts[4].offset += mtd->erasesize - 
-+					(bcm947xx_parts[4].offset % mtd->erasesize);
-+			}
-+			bcm947xx_parts[4].size = size - bcm947xx_parts[3].size - 
-+				bcm947xx_parts[4].offset;
-+		}
-+	}
-+
-+	return bcm947xx_parts;
-+}
-+#endif
-+
-+int __init init_bcm947xx_map(void)
-+{
-+	struct ssb_mipscore *mcore = &ssb.mipscore;
-+	size_t size;
-+	int ret = 0;
-+#ifdef CONFIG_MTD_PARTITIONS
-+	struct mtd_partition *parts;
-+	int i;
-+#endif
-+	u32 window = mcore->flash_window;
-+	u32 window_size = mcore->flash_window_size;
-+
-+	printk("flash init: 0x%08x 0x%08x\n", window, window_size);
-+	bcm947xx_map.virt = ioremap(window, window_size);
-+
-+	if (!bcm947xx_map.virt) {
-+		printk("Failed to ioremap\n");
-+		return -EIO;
-+	}
-+	simple_map_init(&bcm947xx_map);
-+	
-+	bcm947xx_map.copy_from = bcm947xx_map_copy_from;
-+	
-+	if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
-+		printk("Failed to do_map_probe\n");
-+		iounmap((void *)bcm947xx_map.virt);
-+		return -ENXIO;
-+	}
-+
-+	bcm947xx_mtd->owner = THIS_MODULE;
-+
-+	size = bcm947xx_mtd->size;
-+
-+	printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+	parts = init_mtd_partitions(bcm947xx_mtd, size);
-+	for (i = 0; parts[i].name; i++);
-+	ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
-+	if (ret) {
-+		printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
-+		goto fail;
-+	}
-+#endif
-+	return 0;
-+
-+ fail:
-+	if (bcm947xx_mtd)
-+		map_destroy(bcm947xx_mtd);
-+	if (bcm947xx_map.virt)
-+		iounmap((void *)bcm947xx_map.virt);
-+	bcm947xx_map.virt = 0;
-+	return ret;
-+}
-+
-+void __exit cleanup_bcm947xx_map(void)
-+{
-+#ifdef CONFIG_MTD_PARTITIONS
-+	del_mtd_partitions(bcm947xx_mtd);
-+#endif
-+	map_destroy(bcm947xx_mtd);
-+	iounmap((void *)bcm947xx_map.virt);
-+}
-+
-+module_init(init_bcm947xx_map);
-+module_exit(cleanup_bcm947xx_map);
 diff -urN linux.old/drivers/mtd/maps/Kconfig linux.dev/drivers/mtd/maps/Kconfig
 --- linux.old/drivers/mtd/maps/Kconfig	2006-12-11 20:32:53.000000000 +0100
 +++ linux.dev/drivers/mtd/maps/Kconfig	2007-01-03 02:26:02.000000000 +0100