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
SVN-Revision: 3507v19.07.3_mercusys_ac12_duma
Waldemar Brodkorb
19 years ago
parent
109e6b88cc
commit
3a71a90b79
@ -1,401 +0,0 @@
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diff -Nur linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c
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--- linux-2.4.32/drivers/mtd/maps/bcm947xx-flash.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.4.32-flash/drivers/mtd/maps/bcm947xx-flash.c 2005-12-19 01:29:52.464670750 +0100
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@@ -0,0 +1,366 @@
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+/*
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+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
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+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
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+ *
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+ * original functions for finding root filesystem from Mike Baker
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ *
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+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ *
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+ * You should have received a copy of the GNU General Public License along
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+ * with this program; if not, write to the Free Software Foundation, Inc.,
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+ * 675 Mass Ave, Cambridge, MA 02139, USA.
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+ *
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+ *
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+ * Copyright 2004, Broadcom Corporation
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+ * All Rights Reserved.
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+ *
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+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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+ *
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+ * Flash mapping for BCM947XX boards
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+ *
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/types.h>
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+#include <linux/kernel.h>
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+#include <asm/io.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/map.h>
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+#ifdef CONFIG_MTD_PARTITIONS
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+#include <linux/mtd/partitions.h>
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+#endif
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+#include <linux/config.h>
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+
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+#include <trxhdr.h>
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+
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+#define WINDOW_ADDR 0x1c000000
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+#define WINDOW_SIZE (0x400000*2)
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+#define BUSWIDTH 2
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+
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+static struct mtd_info *bcm947xx_mtd;
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+
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+__u8 bcm947xx_map_read8(struct map_info *map, unsigned long ofs)
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+{
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+ if (map->map_priv_2 == 1)
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+ return __raw_readb(map->map_priv_1 + ofs);
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+
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+ u16 val = __raw_readw(map->map_priv_1 + (ofs & ~1));
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+ if (ofs & 1)
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+ return ((val >> 8) & 0xff);
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+ else
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+ return (val & 0xff);
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+}
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+
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+__u16 bcm947xx_map_read16(struct map_info *map, unsigned long ofs)
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+{
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+ return __raw_readw(map->map_priv_1 + ofs);
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+}
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+
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+__u32 bcm947xx_map_read32(struct map_info *map, unsigned long ofs)
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+{
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+ return __raw_readl(map->map_priv_1 + ofs);
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+}
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+
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+void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
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+{
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+ if (len==1) {
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+ memcpy_fromio(to, map->map_priv_1 + from, len);
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+ } else {
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+ int i;
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+ u16 *dest = (u16 *) to;
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+ u16 *src = (u16 *) (map->map_priv_1 + from);
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+ for (i = 0; i < (len / 2); i++) {
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+ dest[i] = src[i];
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+ }
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+ if (len & 1)
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+ *((u8 *)dest+len-1) = src[i] & 0xff;
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+ }
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+}
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+
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+void bcm947xx_map_write8(struct map_info *map, __u8 d, unsigned long adr)
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+{
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+ __raw_writeb(d, map->map_priv_1 + adr);
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+ mb();
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+}
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+
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+void bcm947xx_map_write16(struct map_info *map, __u16 d, unsigned long adr)
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+{
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+ __raw_writew(d, map->map_priv_1 + adr);
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+ mb();
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+}
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+
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+void bcm947xx_map_write32(struct map_info *map, __u32 d, unsigned long adr)
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+{
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+ __raw_writel(d, map->map_priv_1 + adr);
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+ mb();
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+}
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+
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+void bcm947xx_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
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+{
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+ memcpy_toio(map->map_priv_1 + to, from, len);
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+}
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+
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+struct map_info bcm947xx_map = {
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+ name: "Physically mapped flash",
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+ size: WINDOW_SIZE,
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+ buswidth: BUSWIDTH,
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+ read8: bcm947xx_map_read8,
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+ read16: bcm947xx_map_read16,
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+ read32: bcm947xx_map_read32,
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+ copy_from: bcm947xx_map_copy_from,
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+ write8: bcm947xx_map_write8,
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+ write16: bcm947xx_map_write16,
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+ write32: bcm947xx_map_write32,
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+ copy_to: bcm947xx_map_copy_to
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+};
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+
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+#ifdef CONFIG_MTD_PARTITIONS
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+
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+static struct mtd_partition bcm947xx_parts[] = {
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+ { name: "cfe", offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
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+ { name: "linux", offset: 0, size: 0, },
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+ { name: "rootfs", offset: 0, size: 0, },
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+ { name: "nvram", offset: 0, size: 0, },
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+ { name: "OpenWrt", offset: 0, size: 0, },
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+ { name: NULL, },
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+};
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+
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+static int __init
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+find_cfe_size(struct mtd_info *mtd, size_t size)
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+{
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+ struct trx_header *trx;
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+ unsigned char buf[512];
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+ int off;
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+ size_t len;
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+ int cfe_size_flag;
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+
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+ trx = (struct trx_header *) buf;
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+
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+ cfe_size_flag=0;
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+
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+ for (off = (256*1024); off < size; off += mtd->erasesize) {
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+ memset(buf, 0xe5, sizeof(buf));
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+
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+ /*
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+ * Read into buffer
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+ */
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+ if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
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+ len != sizeof(buf))
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+ continue;
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+
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+ /* found a TRX header */
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+ if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
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+ goto done;
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+ }
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+ cfe_size_flag += 1;
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+ }
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+
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+ printk(KERN_NOTICE
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+ "%s: Couldn't find bootloader size\n",
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+ mtd->name);
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+ return -1;
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+
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+ done:
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+ printk(KERN_NOTICE "bootloader size flag: %d\n", cfe_size_flag);
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+ return cfe_size_flag;
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+
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+}
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+
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+static int __init
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+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
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+{
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+ struct trx_header *trx;
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+ unsigned char buf[512];
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+ int off;
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+ size_t len;
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+
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+ trx = (struct trx_header *) buf;
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+
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+ for (off = (256*1024); off < size; off += mtd->erasesize) {
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+ memset(buf, 0xe5, sizeof(buf));
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+
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+ /*
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+ * Read into buffer
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+ */
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+ if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
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+ len != sizeof(buf))
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+ continue;
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+
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+ /* found a TRX header */
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+ if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
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+ part->offset = le32_to_cpu(trx->offsets[2]) ? :
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+ le32_to_cpu(trx->offsets[1]);
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+ part->size = le32_to_cpu(trx->len);
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+
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+ part->size -= part->offset;
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+ part->offset += off;
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+
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+ goto done;
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+ }
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+ }
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+
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+ printk(KERN_NOTICE
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+ "%s: Couldn't find root filesystem\n",
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+ mtd->name);
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+ return -1;
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+
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+ done:
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+ return part->size;
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+}
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+
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+struct mtd_partition * __init
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+init_mtd_partitions(struct mtd_info *mtd, size_t size)
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+{
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+
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+ int cfe_size_flag;
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+
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+ /* if cfe_size_flag=0, cfe size is 256 kb, else 384 kb */
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+ cfe_size_flag = find_cfe_size(mtd,size);
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+
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+ /* boot loader */
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+ bcm947xx_parts[0].offset = 0;
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[0].size = 1024*256;
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+ } else {
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+ /* netgear wgt634u has 384 kb bootloader */
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+ bcm947xx_parts[0].size = 1024*384;
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+ }
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+
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+ /* nvram */
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[3].offset = size - mtd->erasesize;
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+ } else {
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+ /* nvram (old 128kb config partition on netgear wgt634u) */
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+ bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
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+ }
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+ bcm947xx_parts[3].size = mtd->erasesize;
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+
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+ /* linux (kernel and rootfs) */
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[1].offset = bcm947xx_parts[0].size;
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+ bcm947xx_parts[1].size = bcm947xx_parts[3].offset -
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+ bcm947xx_parts[1].offset;
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+ } else {
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+ /* do not count the elf loader, which is on one block */
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+ bcm947xx_parts[1].offset = bcm947xx_parts[0].size +
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+ bcm947xx_parts[3].size + mtd->erasesize;
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+ bcm947xx_parts[1].size = size -
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+ bcm947xx_parts[0].size -
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+ (2*bcm947xx_parts[3].size) -
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+ mtd->erasesize;
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+ }
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+
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+ /* find and size rootfs */
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+ if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
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+ /* entirely jffs2 */
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+ bcm947xx_parts[4].name = NULL;
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+ bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset -
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+ bcm947xx_parts[3].size;
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+ } else {
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+ /* legacy setup */
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+ /* calculate leftover flash, and assign it to the jffs2 partition */
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+ if (cfe_size_flag == 0) {
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+ bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
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+ bcm947xx_parts[2].size;
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+ if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
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+ bcm947xx_parts[4].offset += mtd->erasesize -
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+ (bcm947xx_parts[4].offset % mtd->erasesize);
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+ }
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+ bcm947xx_parts[4].size = bcm947xx_parts[3].offset -
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+ bcm947xx_parts[4].offset;
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+ } else {
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+ bcm947xx_parts[4].offset = bcm947xx_parts[2].offset +
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+ bcm947xx_parts[2].size;
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+ if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
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+ bcm947xx_parts[4].offset += mtd->erasesize -
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+ (bcm947xx_parts[4].offset % mtd->erasesize);
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+ }
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+ bcm947xx_parts[4].size = size - bcm947xx_parts[3].size -
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+ bcm947xx_parts[4].offset;
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+ }
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+ }
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+
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+ return bcm947xx_parts;
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+}
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+
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+#endif
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+
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+
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+mod_init_t init_bcm947xx_map(void)
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+{
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+ size_t size;
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+ int ret = 0;
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+#ifdef CONFIG_MTD_PARTITIONS
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+ struct mtd_partition *parts;
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+ int i;
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+#endif
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+
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+ bcm947xx_map.map_priv_1 = (unsigned long) ioremap(WINDOW_ADDR, WINDOW_SIZE);
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+
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+ if (!bcm947xx_map.map_priv_1) {
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+ printk(KERN_ERR "Failed to ioremap\n");
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+ return -EIO;
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+ }
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+
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+ if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
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+ printk(KERN_ERR "pflash: cfi_probe failed\n");
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+ iounmap((void *)bcm947xx_map.map_priv_1);
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+ return -ENXIO;
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+ }
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+
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+ bcm947xx_mtd->module = THIS_MODULE;
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+
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+ size = bcm947xx_mtd->size;
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+
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+ printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
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+
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+#ifdef CONFIG_MTD_PARTITIONS
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+ parts = init_mtd_partitions(bcm947xx_mtd, size);
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+ for (i = 0; parts[i].name; i++);
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+ ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
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+ if (ret) {
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+ printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
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+ goto fail;
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+ }
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+#endif
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+
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+ return 0;
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+
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+ fail:
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+ if (bcm947xx_mtd)
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+ map_destroy(bcm947xx_mtd);
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+ if (bcm947xx_map.map_priv_1)
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+ iounmap((void *) bcm947xx_map.map_priv_1);
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+ bcm947xx_map.map_priv_1 = 0;
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+ return ret;
|
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+}
|
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+
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+mod_exit_t cleanup_bcm947xx_map(void)
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+{
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+#ifdef CONFIG_MTD_PARTITIONS
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+ del_mtd_partitions(bcm947xx_mtd);
|
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+#endif
|
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+ map_destroy(bcm947xx_mtd);
|
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+ iounmap((void *) bcm947xx_map.map_priv_1);
|
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+ bcm947xx_map.map_priv_1 = 0;
|
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+}
|
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+
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+module_init(init_bcm947xx_map);
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+module_exit(cleanup_bcm947xx_map);
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diff -Nur linux-2.4.32/drivers/mtd/maps/Config.in linux-2.4.32-flash/drivers/mtd/maps/Config.in
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--- linux-2.4.32/drivers/mtd/maps/Config.in 2003-06-13 16:51:34.000000000 +0200
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+++ linux-2.4.32-flash/drivers/mtd/maps/Config.in 2005-12-18 15:53:52.003277250 +0100
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@@ -48,6 +48,7 @@
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fi
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if [ "$CONFIG_MIPS" = "y" ]; then
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+ dep_tristate ' CFI Flash device mapped on Broadcom BCM947XX boards' CONFIG_MTD_BCM947XX $CONFIG_MTD_CFI
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dep_tristate ' Pb1000 MTD support' CONFIG_MTD_PB1000 $CONFIG_MIPS_PB1000
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dep_tristate ' Pb1500 MTD support' CONFIG_MTD_PB1500 $CONFIG_MIPS_PB1500
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dep_tristate ' Pb1100 MTD support' CONFIG_MTD_PB1100 $CONFIG_MIPS_PB1100
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diff -Nur linux-2.4.32/drivers/mtd/maps/Makefile linux-2.4.32-flash/drivers/mtd/maps/Makefile
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--- linux-2.4.32/drivers/mtd/maps/Makefile 2003-06-13 16:51:34.000000000 +0200
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+++ linux-2.4.32-flash/drivers/mtd/maps/Makefile 2005-12-18 15:54:39.022215750 +0100
|
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@@ -3,6 +3,8 @@
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#
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# $Id: Makefile,v 1.37 2003/01/24 14:26:38 dwmw2 Exp $
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+EXTRA_CFLAGS := -I$(TOPDIR)/arch/mips/bcm947xx/include
|
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+
|
||||
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
|
||||
@ -0,0 +1,784 @@
|
||||
diff -Nur linux-2.4.32/drivers/mtd/devices/Config.in linux-2.4.32-flash/drivers/mtd/devices/Config.in
|
||||
--- linux-2.4.32/drivers/mtd/devices/Config.in 2003-06-13 16:51:34.000000000 +0200
|
||||
+++ linux-2.4.32-flash/drivers/mtd/devices/Config.in 2006-03-27 17:10:51.000000000 +0200
|
||||
@@ -5,6 +5,7 @@
|
||||
mainmenu_option next_comment
|
||||
|
||||
comment 'Self-contained MTD device drivers'
|
||||
+bool ' Broadcom Chipcommon Serial Flash support' CONFIG_MTD_SFLASH
|
||||
dep_tristate ' Ramix PMC551 PCI Mezzanine RAM card support' CONFIG_MTD_PMC551 $CONFIG_MTD $CONFIG_PCI
|
||||
if [ "$CONFIG_MTD_PMC551" = "y" -o "$CONFIG_MTD_PMC551" = "m" ]; then
|
||||
bool ' PMC551 256M DRAM Bugfix' CONFIG_MTD_PMC551_BUGFIX
|
||||
diff -Nur linux-2.4.32/drivers/mtd/devices/Makefile linux-2.4.32-flash/drivers/mtd/devices/Makefile
|
||||
--- linux-2.4.32/drivers/mtd/devices/Makefile 2002-11-29 00:53:13.000000000 +0100
|
||||
+++ linux-2.4.32-flash/drivers/mtd/devices/Makefile 2006-03-27 17:10:51.000000000 +0200
|
||||
@@ -3,6 +3,8 @@
|
||||
#
|
||||
# $Id: Makefile,v 1.4 2001/06/26 21:10:05 spse Exp $
|
||||
|
||||
+EXTRA_CFLAGS := -I$(TOPDIR)/arch/mips/bcm947xx/include
|
||||
+
|
||||
O_TARGET := devlink.o
|
||||
|
||||
# *** BIG UGLY NOTE ***
|
||||
@@ -12,6 +14,7 @@
|
||||
# here where previously there was none. We now have to ensure that
|
||||
# doc200[01].o are linked before docprobe.o
|
||||
|
||||
+obj-$(CONFIG_MTD_SFLASH) += sflash.o
|
||||
obj-$(CONFIG_MTD_DOC1000) += doc1000.o
|
||||
obj-$(CONFIG_MTD_DOC2000) += doc2000.o
|
||||
obj-$(CONFIG_MTD_DOC2001) += doc2001.o
|
||||
diff -Nur linux-2.4.32/drivers/mtd/devices/sflash.c linux-2.4.32-flash/drivers/mtd/devices/sflash.c
|
||||
--- linux-2.4.32/drivers/mtd/devices/sflash.c 1970-01-01 01:00:00.000000000 +0100
|
||||
+++ linux-2.4.32-flash/drivers/mtd/devices/sflash.c 2006-03-27 17:10:51.000000000 +0200
|
||||
@@ -0,0 +1,298 @@
|
||||
+/*
|
||||
+ * Broadcom SiliconBackplane chipcommon serial flash interface
|
||||
+ *
|
||||
+ * 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: sflash.c,v 1.1.1.3 2003/11/10 17:43:38 hyin Exp $
|
||||
+ */
|
||||
+
|
||||
+#include <linux/config.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/slab.h>
|
||||
+#include <linux/ioport.h>
|
||||
+#include <linux/mtd/compatmac.h>
|
||||
+#include <linux/mtd/mtd.h>
|
||||
+#include <linux/mtd/partitions.h>
|
||||
+#include <linux/errno.h>
|
||||
+#include <linux/pci.h>
|
||||
+#include <linux/delay.h>
|
||||
+#include <asm/io.h>
|
||||
+
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+#include <linux/mtd/mtd.h>
|
||||
+#include <linux/mtd/partitions.h>
|
||||
+#include <linux/minix_fs.h>
|
||||
+#include <linux/ext2_fs.h>
|
||||
+#include <linux/romfs_fs.h>
|
||||
+#include <linux/cramfs_fs.h>
|
||||
+#include <linux/jffs2.h>
|
||||
+#endif
|
||||
+
|
||||
+#include <typedefs.h>
|
||||
+#include <bcmdevs.h>
|
||||
+#include <bcmutils.h>
|
||||
+#include <osl.h>
|
||||
+#include <bcmutils.h>
|
||||
+#include <bcmnvram.h>
|
||||
+#include <sbconfig.h>
|
||||
+#include <sbchipc.h>
|
||||
+#include <sflash.h>
|
||||
+#include <trxhdr.h>
|
||||
+
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size);
|
||||
+#endif
|
||||
+
|
||||
+struct sflash_mtd {
|
||||
+ chipcregs_t *cc;
|
||||
+ struct semaphore lock;
|
||||
+ struct mtd_info mtd;
|
||||
+ struct mtd_erase_region_info regions[1];
|
||||
+};
|
||||
+
|
||||
+/* Private global state */
|
||||
+static struct sflash_mtd sflash;
|
||||
+
|
||||
+static int
|
||||
+sflash_mtd_poll(struct sflash_mtd *sflash, unsigned int offset, int timeout)
|
||||
+{
|
||||
+ int now = jiffies;
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ for (;;) {
|
||||
+ if (!sflash_poll(sflash->cc, offset)) {
|
||||
+ ret = 0;
|
||||
+ break;
|
||||
+ }
|
||||
+ if (time_after(jiffies, now + timeout)) {
|
||||
+ printk(KERN_ERR "sflash: timeout\n");
|
||||
+ ret = -ETIMEDOUT;
|
||||
+ break;
|
||||
+ }
|
||||
+ if (current->need_resched) {
|
||||
+ set_current_state(TASK_UNINTERRUPTIBLE);
|
||||
+ schedule_timeout(timeout / 10);
|
||||
+ } else
|
||||
+ udelay(1);
|
||||
+ }
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+sflash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
|
||||
+{
|
||||
+ struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
|
||||
+ int bytes, ret = 0;
|
||||
+
|
||||
+ /* Check address range */
|
||||
+ if (!len)
|
||||
+ return 0;
|
||||
+ if ((from + len) > mtd->size)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ down(&sflash->lock);
|
||||
+
|
||||
+ *retlen = 0;
|
||||
+ while (len) {
|
||||
+ if ((bytes = sflash_read(sflash->cc, (uint) from, len, buf)) < 0) {
|
||||
+ ret = bytes;
|
||||
+ break;
|
||||
+ }
|
||||
+ from += (loff_t) bytes;
|
||||
+ len -= bytes;
|
||||
+ buf += bytes;
|
||||
+ *retlen += bytes;
|
||||
+ }
|
||||
+
|
||||
+ up(&sflash->lock);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+sflash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
|
||||
+{
|
||||
+ struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
|
||||
+ int bytes, ret = 0;
|
||||
+
|
||||
+ /* Check address range */
|
||||
+ if (!len)
|
||||
+ return 0;
|
||||
+ if ((to + len) > mtd->size)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ down(&sflash->lock);
|
||||
+
|
||||
+ *retlen = 0;
|
||||
+ while (len) {
|
||||
+ if ((bytes = sflash_write(sflash->cc, (uint) to, len, buf)) < 0) {
|
||||
+ ret = bytes;
|
||||
+ break;
|
||||
+ }
|
||||
+ if ((ret = sflash_mtd_poll(sflash, (unsigned int) to, HZ / 10)))
|
||||
+ break;
|
||||
+ to += (loff_t) bytes;
|
||||
+ len -= bytes;
|
||||
+ buf += bytes;
|
||||
+ *retlen += bytes;
|
||||
+ }
|
||||
+
|
||||
+ up(&sflash->lock);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+sflash_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
|
||||
+{
|
||||
+ struct sflash_mtd *sflash = (struct sflash_mtd *) mtd->priv;
|
||||
+ int i, j, ret = 0;
|
||||
+ unsigned int addr, len;
|
||||
+
|
||||
+ /* Check address range */
|
||||
+ if (!erase->len)
|
||||
+ return 0;
|
||||
+ if ((erase->addr + erase->len) > mtd->size)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ addr = erase->addr;
|
||||
+ len = erase->len;
|
||||
+
|
||||
+ down(&sflash->lock);
|
||||
+
|
||||
+ /* Ensure that requested region is aligned */
|
||||
+ for (i = 0; i < mtd->numeraseregions; i++) {
|
||||
+ for (j = 0; j < mtd->eraseregions[i].numblocks; j++) {
|
||||
+ if (addr == mtd->eraseregions[i].offset + mtd->eraseregions[i].erasesize * j &&
|
||||
+ len >= mtd->eraseregions[i].erasesize) {
|
||||
+ if ((ret = sflash_erase(sflash->cc, addr)) < 0)
|
||||
+ break;
|
||||
+ if ((ret = sflash_mtd_poll(sflash, addr, 10 * HZ)))
|
||||
+ break;
|
||||
+ addr += mtd->eraseregions[i].erasesize;
|
||||
+ len -= mtd->eraseregions[i].erasesize;
|
||||
+ }
|
||||
+ }
|
||||
+ if (ret)
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+ up(&sflash->lock);
|
||||
+
|
||||
+ /* Set erase status */
|
||||
+ if (ret)
|
||||
+ erase->state = MTD_ERASE_FAILED;
|
||||
+ else
|
||||
+ erase->state = MTD_ERASE_DONE;
|
||||
+
|
||||
+ /* Call erase callback */
|
||||
+ if (erase->callback)
|
||||
+ erase->callback(erase);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
|
||||
+#define sflash_mtd_init init_module
|
||||
+#define sflash_mtd_exit cleanup_module
|
||||
+#endif
|
||||
+
|
||||
+mod_init_t
|
||||
+sflash_mtd_init(void)
|
||||
+{
|
||||
+ struct pci_dev *pdev;
|
||||
+ int ret = 0;
|
||||
+ struct sflash *info;
|
||||
+ uint bank, i;
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+ struct mtd_partition *parts;
|
||||
+#endif
|
||||
+
|
||||
+ if (!(pdev = pci_find_device(VENDOR_BROADCOM, SB_CC, NULL))) {
|
||||
+ printk(KERN_ERR "sflash: chipcommon not found\n");
|
||||
+ return -ENODEV;
|
||||
+ }
|
||||
+
|
||||
+ memset(&sflash, 0, sizeof(struct sflash_mtd));
|
||||
+ init_MUTEX(&sflash.lock);
|
||||
+
|
||||
+ /* Map registers and flash base */
|
||||
+ if (!(sflash.cc = ioremap_nocache(pci_resource_start(pdev, 0),
|
||||
+ pci_resource_len(pdev, 0)))) {
|
||||
+ printk(KERN_ERR "sflash: error mapping registers\n");
|
||||
+ ret = -EIO;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ /* Initialize serial flash access */
|
||||
+ info = sflash_init(sflash.cc);
|
||||
+
|
||||
+ if (!info) {
|
||||
+ printk(KERN_ERR "sflash: found no supported devices\n");
|
||||
+ ret = -ENODEV;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ /* Setup banks */
|
||||
+ sflash.regions[0].offset = 0;
|
||||
+ sflash.regions[0].erasesize = info->blocksize;
|
||||
+ sflash.regions[0].numblocks = info->numblocks;
|
||||
+ if (sflash.regions[0].erasesize > sflash.mtd.erasesize)
|
||||
+ sflash.mtd.erasesize = sflash.regions[0].erasesize;
|
||||
+ if (sflash.regions[0].erasesize * sflash.regions[0].numblocks) {
|
||||
+ sflash.mtd.size += sflash.regions[0].erasesize * sflash.regions[0].numblocks;
|
||||
+ }
|
||||
+ sflash.mtd.numeraseregions = 1;
|
||||
+ ASSERT(sflash.mtd.size == info->size);
|
||||
+
|
||||
+ /* Register with MTD */
|
||||
+ sflash.mtd.name = "sflash";
|
||||
+ sflash.mtd.type = MTD_NORFLASH;
|
||||
+ sflash.mtd.flags = MTD_CAP_NORFLASH;
|
||||
+ sflash.mtd.eraseregions = sflash.regions;
|
||||
+ sflash.mtd.module = THIS_MODULE;
|
||||
+ sflash.mtd.erase = sflash_mtd_erase;
|
||||
+ sflash.mtd.read = sflash_mtd_read;
|
||||
+ sflash.mtd.write = sflash_mtd_write;
|
||||
+ sflash.mtd.priv = &sflash;
|
||||
+
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+ parts = init_mtd_partitions(&sflash.mtd, sflash.mtd.size);
|
||||
+ for (i = 0; parts[i].name; i++);
|
||||
+ ret = add_mtd_partitions(&sflash.mtd, parts, i);
|
||||
+#else
|
||||
+ ret = add_mtd_device(&sflash.mtd);
|
||||
+#endif
|
||||
+ if (ret) {
|
||||
+ printk(KERN_ERR "sflash: add_mtd failed\n");
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+ fail:
|
||||
+ if (sflash.cc)
|
||||
+ iounmap((void *) sflash.cc);
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+mod_exit_t
|
||||
+sflash_mtd_exit(void)
|
||||
+{
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+ del_mtd_partitions(&sflash.mtd);
|
||||
+#else
|
||||
+ del_mtd_device(&sflash.mtd);
|
||||
+#endif
|
||||
+ iounmap((void *) sflash.cc);
|
||||
+}
|
||||
+
|
||||
+module_init(sflash_mtd_init);
|
||||
+module_exit(sflash_mtd_exit);
|
||||
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 2006-03-27 17:07:27.000000000 +0200
|
||||
@@ -0,0 +1,416 @@
|
||||
+/*
|
||||
+ * 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 <typedefs.h>
|
||||
+#include <osl.h>
|
||||
+#include <bcmnvram.h>
|
||||
+#include <bcmutils.h>
|
||||
+#include <sbconfig.h>
|
||||
+#include <sbchipc.h>
|
||||
+#include <sbutils.h>
|
||||
+#include <trxhdr.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
|
||||
+
|
||||
+#define WINDOW_ADDR 0x1fc00000
|
||||
+#define WINDOW_SIZE 0x400000
|
||||
+#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 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 done;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ printk(KERN_NOTICE
|
||||
+ "%s: Couldn't find bootloader size\n",
|
||||
+ mtd->name);
|
||||
+ return -1;
|
||||
+
|
||||
+ done:
|
||||
+ printk(KERN_NOTICE "bootloader size: %d\n", off);
|
||||
+ return off;
|
||||
+
|
||||
+}
|
||||
+
|
||||
+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;
|
||||
+ 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) {
|
||||
+ 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;
|
||||
+
|
||||
+ cfe_size = find_cfe_size(mtd,size);
|
||||
+
|
||||
+ /* 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
|
||||
+
|
||||
+
|
||||
+mod_init_t init_bcm947xx_map(void)
|
||||
+{
|
||||
+ ulong flags;
|
||||
+ uint coreidx;
|
||||
+ chipcregs_t *cc;
|
||||
+ uint32 fltype;
|
||||
+ uint window_addr = 0, window_size = 0;
|
||||
+ size_t size;
|
||||
+ int ret = 0;
|
||||
+#ifdef CONFIG_MTD_PARTITIONS
|
||||
+ struct mtd_partition *parts;
|
||||
+ int i;
|
||||
+#endif
|
||||
+
|
||||
+ spin_lock_irqsave(&sbh_lock, flags);
|
||||
+ coreidx = sb_coreidx(sbh);
|
||||
+
|
||||
+ /* Check strapping option if chipcommon exists */
|
||||
+ if ((cc = sb_setcore(sbh, SB_CC, 0))) {
|
||||
+ fltype = readl(&cc->capabilities) & CAP_FLASH_MASK;
|
||||
+ if (fltype == PFLASH) {
|
||||
+ bcm947xx_map.map_priv_2 = 1;
|
||||
+ window_addr = 0x1c000000;
|
||||
+ bcm947xx_map.size = window_size = 32 * 1024 * 1024;
|
||||
+ if ((readl(&cc->flash_config) & CC_CFG_DS) == 0)
|
||||
+ bcm947xx_map.buswidth = 1;
|
||||
+ }
|
||||
+ } else {
|
||||
+ fltype = PFLASH;
|
||||
+ bcm947xx_map.map_priv_2 = 0;
|
||||
+ window_addr = WINDOW_ADDR;
|
||||
+ window_size = WINDOW_SIZE;
|
||||
+ }
|
||||
+
|
||||
+ sb_setcoreidx(sbh, coreidx);
|
||||
+ spin_unlock_irqrestore(&sbh_lock, flags);
|
||||
+
|
||||
+ if (fltype != PFLASH) {
|
||||
+ printk(KERN_ERR "pflash: found no supported devices\n");
|
||||
+ ret = -ENODEV;
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
+ 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 2006-01-31 22:03:50.000000000 +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 2006-01-31 22:03:50.000000000 +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
|
||||
Loading…
Reference in New Issue