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authorWaldemar Brodkorb <wbx@openwrt.org>2006-03-27 18:16:20 +0000
committerWaldemar Brodkorb <wbx@openwrt.org>2006-03-27 18:16:20 +0000
commit5211b60afcbb05e362ae8ea347f776b77a698e16 (patch)
tree9fba2c403ec4fcf5d4effe32e1d9d92336d58291 /target/linux/brcm-2.4/patches/004-flash-map.patch
parent09e9c0c70eaeceae0a7bec91a5dcb5c48d072070 (diff)
downloadupstream-5211b60afcbb05e362ae8ea347f776b77a698e16.tar.gz
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fix flash map driver for WAP54G v1, add support for Belkin F5D7230-4 serial flash and smaller bootloader, checked on WRT54GSv1.0, WRT54Gv2.2 and Asus WL500g, so that everything still works on supported devices
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3507 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm-2.4/patches/004-flash-map.patch')
-rw-r--r--target/linux/brcm-2.4/patches/004-flash-map.patch401
1 files changed, 0 insertions, 401 deletions
diff --git a/target/linux/brcm-2.4/patches/004-flash-map.patch b/target/linux/brcm-2.4/patches/004-flash-map.patch
deleted file mode 100644
index 06c106bdf0..0000000000
--- a/target/linux/brcm-2.4/patches/004-flash-map.patch
+++ /dev/null
@@ -1,401 +0,0 @@
-diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c
---- linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c 2005-12-19 01:29:52.464670750 +0100
-@@ -0,0 +1,366 @@
-+/*
-+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
-+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.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 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.
-+ *
-+ * Flash mapping for BCM947XX boards
-+ *
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <asm/io.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/map.h>
-+#ifdef CONFIG_MTD_PARTITIONS
-+#include <linux/mtd/partitions.h>
-+#endif
-+#include <linux/config.h>
-+
-+#include <trxhdr.h>
-+
-+#define WINDOW_ADDR 0x1c000000
-+#define WINDOW_SIZE (0x400000*2)
-+#define BUSWIDTH 2
-+
-+static struct mtd_info *bcm947xx_mtd;
-+
-+__u8 bcm947xx_map_read8(struct map_info *map, unsigned long ofs)
-+{
-+ if (map->map_priv_2 == 1)
-+ return __raw_readb(map->map_priv_1 + ofs);
-+
-+ u16 val = __raw_readw(map->map_priv_1 + (ofs & ~1));
-+ if (ofs & 1)
-+ return ((val >> 8) & 0xff);
-+ else
-+ return (val & 0xff);
-+}
-+
-+__u16 bcm947xx_map_read16(struct map_info *map, unsigned long ofs)
-+{
-+ return __raw_readw(map->map_priv_1 + ofs);
-+}
-+
-+__u32 bcm947xx_map_read32(struct map_info *map, unsigned long ofs)
-+{
-+ return __raw_readl(map->map_priv_1 + ofs);
-+}
-+
-+void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+ if (len==1) {
-+ memcpy_fromio(to, map->map_priv_1 + from, len);
-+ } else {
-+ int i;
-+ u16 *dest = (u16 *) to;
-+ u16 *src = (u16 *) (map->map_priv_1 + from);
-+ for (i = 0; i < (len / 2); i++) {
-+ dest[i] = src[i];
-+ }
-+ if (len & 1)
-+ *((u8 *)dest+len-1) = src[i] & 0xff;
-+ }
-+}
-+
-+void bcm947xx_map_write8(struct map_info *map, __u8 d, unsigned long adr)
-+{
-+ __raw_writeb(d, map->map_priv_1 + adr);
-+ mb();
-+}
-+
-+void bcm947xx_map_write16(struct map_info *map, __u16 d, unsigned long adr)
-+{
-+ __raw_writew(d, map->map_priv_1 + adr);
-+ mb();
-+}
-+
-+void bcm947xx_map_write32(struct map_info *map, __u32 d, unsigned long adr)
-+{
-+ __raw_writel(d, map->map_priv_1 + adr);
-+ mb();
-+}
-+
-+void bcm947xx_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-+{
-+ memcpy_toio(map->map_priv_1 + to, from, len);
-+}
-+
-+struct map_info bcm947xx_map = {
-+ name: "Physically mapped flash",
-+ size: WINDOW_SIZE,
-+ buswidth: BUSWIDTH,
-+ read8: bcm947xx_map_read8,
-+ read16: bcm947xx_map_read16,
-+ read32: bcm947xx_map_read32,
-+ copy_from: bcm947xx_map_copy_from,
-+ write8: bcm947xx_map_write8,
-+ write16: bcm947xx_map_write16,
-+ write32: bcm947xx_map_write32,
-+ copy_to: bcm947xx_map_copy_to
-+};
-+
-+#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 cfe_size_flag;
-+
-+ trx = (struct trx_header *) buf;
-+
-+ cfe_size_flag=0;
-+
-+ 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) {
-+ goto done;
-+ }
-+ cfe_size_flag += 1;
-+ }
-+
-+ printk(KERN_NOTICE
-+ "%s: Couldn't find bootloader size\n",
-+ mtd->name);
-+ return -1;
-+
-+ done:
-+ printk(KERN_NOTICE "bootloader size flag: %d\n", cfe_size_flag);
-+ return cfe_size_flag;
-+
-+}
-+
-+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[2]) ? :
-+ 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)
-+{
-+
-+ int cfe_size_flag;
-+
-+ /* if cfe_size_flag=0, cfe size is 256 kb, else 384 kb */
-+ cfe_size_flag = find_cfe_size(mtd,size);
-+
-+ /* boot loader */
-+ bcm947xx_parts[0].offset = 0;
-+ if (cfe_size_flag == 0) {
-+ bcm947xx_parts[0].size = 1024*256;
-+ } else {
-+ /* netgear wgt634u has 384 kb bootloader */
-+ bcm947xx_parts[0].size = 1024*384;
-+ }
-+
-+ /* nvram */
-+ if (cfe_size_flag == 0) {
-+ bcm947xx_parts[3].offset = size - mtd->erasesize;
-+ } else {
-+ /* nvram (old 128kb config partition on netgear wgt634u) */
-+ bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
-+ }
-+ bcm947xx_parts[3].size = mtd->erasesize;
-+
-+ /* linux (kernel and rootfs) */
-+ if (cfe_size_flag == 0) {
-+ 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_flag == 0) {
-+ 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
-+
-+
-+mod_init_t init_bcm947xx_map(void)
-+{
-+ size_t size;
-+ int ret = 0;
-+#ifdef CONFIG_MTD_PARTITIONS
-+ struct mtd_partition *parts;
-+ int i;
-+#endif
-+
-+ bcm947xx_map.map_priv_1 = (unsigned long) ioremap(WINDOW_ADDR, WINDOW_SIZE);
-+
-+ if (!bcm947xx_map.map_priv_1) {
-+ printk(KERN_ERR "Failed to ioremap\n");
-+ return -EIO;
-+ }
-+
-+ if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
-+ printk(KERN_ERR "pflash: cfi_probe failed\n");
-+ iounmap((void *)bcm947xx_map.map_priv_1);
-+ return -ENXIO;
-+ }
-+
-+ bcm947xx_mtd->module = 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.map_priv_1)
-+ iounmap((void *) bcm947xx_map.map_priv_1);
-+ bcm947xx_map.map_priv_1 = 0;
-+ return ret;
-+}
-+
-+mod_exit_t cleanup_bcm947xx_map(void)
-+{
-+#ifdef CONFIG_MTD_PARTITIONS
-+ del_mtd_partitions(bcm947xx_mtd);
-+#endif
-+ map_destroy(bcm947xx_mtd);
-+ iounmap((void *) bcm947xx_map.map_priv_1);
-+ bcm947xx_map.map_priv_1 = 0;
-+}
-+
-+module_init(init_bcm947xx_map);
-+module_exit(cleanup_bcm947xx_map);
-diff -Nur linux-2.4.32/drivers/mtd/maps/Config.in linux-2.4.32-flash/drivers/mtd/maps/Config.in
---- linux-2.4.32/drivers/mtd/maps/Config.in 2003-06-13 16:51:34.000000000 +0200
-+++ linux-2.4.32-flash/drivers/mtd/maps/Config.in 2005-12-18 15:53:52.003277250 +0100
-@@ -48,6 +48,7 @@
- fi
-
- if [ "$CONFIG_MIPS" = "y" ]; then
-+ dep_tristate ' CFI Flash device mapped on Broadcom BCM947XX boards' CONFIG_MTD_BCM947XX $CONFIG_MTD_CFI
- dep_tristate ' Pb1000 MTD support' CONFIG_MTD_PB1000 $CONFIG_MIPS_PB1000
- dep_tristate ' Pb1500 MTD support' CONFIG_MTD_PB1500 $CONFIG_MIPS_PB1500
- dep_tristate ' Pb1100 MTD support' CONFIG_MTD_PB1100 $CONFIG_MIPS_PB1100
-diff -Nur linux-2.4.32/drivers/mtd/maps/Makefile linux-2.4.32-flash/drivers/mtd/maps/Makefile
---- linux-2.4.32/drivers/mtd/maps/Makefile 2003-06-13 16:51:34.000000000 +0200
-+++ linux-2.4.32-flash/drivers/mtd/maps/Makefile 2005-12-18 15:54:39.022215750 +0100
-@@ -3,6 +3,8 @@
- #
- # $Id: Makefile,v 1.37 2003/01/24 14:26:38 dwmw2 Exp $
-
-+EXTRA_CFLAGS := -I$(TOPDIR)/arch/mips/bcm947xx/include
-+
- BELOW25 := $(shell echo $(PATCHLEVEL) | sed s/[1234]/y/)
-
- ifeq ($(BELOW25),y)
-@@ -10,6 +12,7 @@
- endif
-
- # Chip mappings
-+obj-$(CONFIG_MTD_BCM947XX) += bcm947xx-flash.o
- obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
- obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
- obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o