420 lines
17 KiB
Diff
420 lines
17 KiB
Diff
diff -urN linux-2.6.19/drivers/mtd/maps/Kconfig linux-2.6.19.new/drivers/mtd/maps/Kconfig
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--- linux-2.6.19/drivers/mtd/maps/Kconfig 2006-11-29 22:57:37.000000000 +0100
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+++ linux-2.6.19.new/drivers/mtd/maps/Kconfig 2006-12-18 17:21:07.000000000 +0100
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@@ -224,6 +224,13 @@
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Flash memory access on 4G Systems MTX-1 Board. If you have one of
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these boards and would like to use the flash chips on it, say 'Y'.
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+config MTD_BCM963XX
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+ tristate "BCM963xx Flash device"
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+ depends on MIPS && BCM963XX
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+ help
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+ Flash memory access on BCM963xx boards. Currently only works with
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+ RedBoot, CFE support coming soon.
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+
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config MTD_DILNETPC
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tristate "CFI Flash device mapped on DIL/Net PC"
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depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
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diff -urN linux-2.6.19/drivers/mtd/maps/Makefile linux-2.6.19.new/drivers/mtd/maps/Makefile
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--- linux-2.6.19/drivers/mtd/maps/Makefile 2006-11-29 22:57:37.000000000 +0100
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+++ linux-2.6.19.new/drivers/mtd/maps/Makefile 2006-12-18 17:21:07.000000000 +0100
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@@ -70,3 +70,4 @@
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obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
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obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o
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obj-$(CONFIG_MTD_TQM834x) += tqm834x.o
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+obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o
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diff -urN linux-2.6.19/drivers/mtd/maps/Makefile.orig linux-2.6.19.new/drivers/mtd/maps/Makefile.orig
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--- linux-2.6.19/drivers/mtd/maps/Makefile.orig 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.19.new/drivers/mtd/maps/Makefile.orig 2006-11-29 22:57:37.000000000 +0100
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@@ -0,0 +1,72 @@
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+#
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+# linux/drivers/maps/Makefile
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+#
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+# $Id: Makefile.common,v 1.34 2005/11/07 11:14:26 gleixner Exp $
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+
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+ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
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+obj-$(CONFIG_MTD) += map_funcs.o
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+endif
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+
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+# Chip mappings
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+obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
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+obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
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+obj-$(CONFIG_MTD_BAST) += bast-flash.o
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+obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
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+obj-$(CONFIG_MTD_CSTM_MIPS_IXX) += cstm_mips_ixx.o
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+obj-$(CONFIG_MTD_DC21285) += dc21285.o
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+obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o
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+obj-$(CONFIG_MTD_L440GX) += l440gx.o
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+obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o
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+obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
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+obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
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+obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o
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+obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o
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+obj-$(CONFIG_MTD_MBX860) += mbx860.o
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+obj-$(CONFIG_MTD_CEIVA) += ceiva.o
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+obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
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+obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
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+obj-$(CONFIG_MTD_PNC2000) += pnc2000.o
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+obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
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+obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
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+obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
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+obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o
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+obj-$(CONFIG_MTD_IPAQ) += ipaq-flash.o
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+obj-$(CONFIG_MTD_SBC_GXX) += sbc_gxx.o
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+obj-$(CONFIG_MTD_SC520CDP) += sc520cdp.o
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+obj-$(CONFIG_MTD_NETSC520) += netsc520.o
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+obj-$(CONFIG_MTD_TS5500) += ts5500_flash.o
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+obj-$(CONFIG_MTD_SUN_UFLASH) += sun_uflash.o
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+obj-$(CONFIG_MTD_VMAX) += vmax301.o
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+obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
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+obj-$(CONFIG_MTD_DBOX2) += dbox2-flash.o
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+obj-$(CONFIG_MTD_OCELOT) += ocelot.o
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+obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
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+obj-$(CONFIG_MTD_PCI) += pci.o
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+obj-$(CONFIG_MTD_ALCHEMY) += alchemy-flash.o
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+obj-$(CONFIG_MTD_LASAT) += lasat.o
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+obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o
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+obj-$(CONFIG_MTD_EDB7312) += edb7312.o
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+obj-$(CONFIG_MTD_IMPA7) += impa7.o
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+obj-$(CONFIG_MTD_FORTUNET) += fortunet.o
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+obj-$(CONFIG_MTD_REDWOOD) += redwood.o
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+obj-$(CONFIG_MTD_UCLINUX) += uclinux.o
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+obj-$(CONFIG_MTD_NETtel) += nettel.o
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+obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o
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+obj-$(CONFIG_MTD_EBONY) += ebony.o
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+obj-$(CONFIG_MTD_OCOTEA) += ocotea.o
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+obj-$(CONFIG_MTD_BEECH) += beech-mtd.o
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+obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o
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+obj-$(CONFIG_MTD_WALNUT) += walnut.o
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+obj-$(CONFIG_MTD_H720X) += h720x-flash.o
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+obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
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+obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o
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+obj-$(CONFIG_MTD_MPC1211) += mpc1211.o
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+obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o
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+obj-$(CONFIG_MTD_IXP2000) += ixp2000.o
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+obj-$(CONFIG_MTD_WRSBC8260) += wr_sbc82xx_flash.o
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+obj-$(CONFIG_MTD_DMV182) += dmv182.o
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+obj-$(CONFIG_MTD_SHARP_SL) += sharpsl-flash.o
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+obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
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+obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
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+obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o
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+obj-$(CONFIG_MTD_TQM834x) += tqm834x.o
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diff -urN linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c
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--- linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c 2006-12-18 17:21:07.000000000 +0100
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@@ -0,0 +1,276 @@
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+/*
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+ * $Id$
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+ * Copyright (C) 2006 Florian Fainelli
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+ * Copyright (C) $Date$ $Author$
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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+ */
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+
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+/* This is the BCM963xx flash map driver, in its actual state it only supports BCM96348 devices
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+ * this driver is able to manage both bootloader we found on these boards : CFE and RedBoot
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+ *
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+ * RedBoot :
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+ * - this bootloader allows us to parse partitions and therefore deduce the MTD partition table
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+ *
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+ * CFE :
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+ * - we have to use a "physically mapped flash" defined bellow
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+ *
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+ */
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+
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+#include <asm/io.h>
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+#include <linux/init.h>
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+#include <linux/kernel.h>
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+#include <linux/mtd/map.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/vmalloc.h>
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+#include <board.h>
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+
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+#define WINDOW_ADDR 0x1FC00000 /* Real address of the flash */
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+#define WINDOW_SIZE 0x400000 /* Size of flash */
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+#define BUSWIDTH 2 /* Buswidth */
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+#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
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+#define IMAGE_LEN 10 /* Length of Length Field */
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+#define ADDRESS_LEN 12 /* Length of Address field */
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+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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+
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+extern int boot_loader_type; /* For RedBoot / CFE detection */
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+extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
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+static struct mtd_partition *parsed_parts;
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+
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+static void __exit bcm963xx_mtd_cleanup(void);
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+
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+static struct mtd_info *bcm963xx_mtd_info;
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+
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+static struct map_info bcm963xx_map = {
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+ .name = "bcm963xx",
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+ .size = WINDOW_SIZE,
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+ .bankwidth = BUSWIDTH,
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+ .phys = WINDOW_ADDR,
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+};
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+
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+
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+int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
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+{
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+ int nrparts = 2, curpart = 0; // CFE and NVRAM always present.
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+ struct bcm963xx_cfe_map {
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+ unsigned char tagVersion[4]; // Version of the image tag
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+ unsigned char sig_1[20]; // Company Line 1
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+ unsigned char sig_2[14]; // Company Line 2
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+ unsigned char chipid[6]; // Chip this image is for
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+ unsigned char boardid[16]; // Board name
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+ unsigned char bigEndian[2]; // Map endianness -- 1 BE 0 LE
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+ unsigned char totalLength[IMAGE_LEN]; //Total length of image
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+ unsigned char cfeAddress[ADDRESS_LEN]; // Address in memory of CFE
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+ unsigned char cfeLength[IMAGE_LEN]; // Size of CFE
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+ unsigned char rootAddress[ADDRESS_LEN]; // Address in memory of rootfs
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+ unsigned char rootLength[IMAGE_LEN]; // Size of rootfs
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+ unsigned char kernelAddress[ADDRESS_LEN]; // Address in memory of kernel
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+ unsigned char kernelLength[IMAGE_LEN]; // Size of kernel
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+ unsigned char dualImage[2]; // Unused at present
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+ unsigned char inactiveFlag[2]; // Unused at present
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+ unsigned char reserved1[74]; // Reserved area not in use
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+ unsigned char imageCRC[4]; // CRC32 of images
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+ unsigned char reserved2[16]; // Unused at present
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+ unsigned char headerCRC[4]; // CRC32 of header excluding tagVersion
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+ unsigned char reserved3[16]; // Unused at present
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+ } *buf;
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+ struct mtd_partition *parts;
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+ int ret;
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+ size_t retlen;
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+ unsigned int rootfsaddr, kerneladdr, spareaddr;
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+ unsigned int rootfslen, kernellen, sparelen, totallen;
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+ int namelen = 0;
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+ int i;
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+ // Allocate memory for buffer
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+ buf = vmalloc(sizeof(struct bcm963xx_cfe_map));
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+
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+ if (!buf)
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+ return -ENOMEM;
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+
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+ // Get the tag
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+ ret = master->read(master,master->erasesize,sizeof(struct bcm963xx_cfe_map), &retlen, (void *)buf);
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+ if (retlen != sizeof(struct bcm963xx_cfe_map)){
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+ vfree(buf);
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+ return -EIO;
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+ };
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+ printk("bcm963xx: CFE boot tag found with version %s and board type %s.\n",buf->tagVersion,buf->boardid);
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+ // Get the values and calculate
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+ sscanf(buf->rootAddress,"%u", &rootfsaddr);
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+ rootfsaddr = rootfsaddr - EXTENDED_SIZE;
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+ sscanf(buf->rootLength, "%u", &rootfslen);
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+ sscanf(buf->kernelAddress, "%u", &kerneladdr);
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+ kerneladdr = kerneladdr - EXTENDED_SIZE;
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+ sscanf(buf->kernelLength, "%u", &kernellen);
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+ sscanf(buf->totalLength, "%u", &totallen);
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+ spareaddr = ROUNDUP(totallen,master->erasesize) + master->erasesize;
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+ sparelen = master->size - spareaddr - master->erasesize;
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+ // Determine number of partitions
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+ namelen = 8;
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+ if (rootfslen > 0){
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+ nrparts++;
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+ namelen =+ 6;
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+ };
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+ if (kernellen > 0){
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+ nrparts++;
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+ namelen =+ 6;
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+ };
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+ if (sparelen > 0){
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+ nrparts++;
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+ namelen =+ 6;
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+ };
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+ // Ask kernel for more memory.
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+ parts = kmalloc(sizeof(*parts)*nrparts+10*nrparts, GFP_KERNEL);
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+ if (!parts){
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+ vfree(buf);
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+ return -ENOMEM;
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+ };
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+ memset(parts,0,sizeof(*parts)*nrparts+10*nrparts);
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+ // Start building partition list
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+ parts[curpart].name = "CFE";
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+ parts[curpart].offset = 0;
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+ parts[curpart].size = master->erasesize;
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+ curpart++;
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+ if (kernellen > 0){
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+ parts[curpart].name = "Kernel";
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+ parts[curpart].offset = kerneladdr;
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+ parts[curpart].size = kernellen;
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+ curpart++;
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+ };
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+ if (rootfslen > 0){
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+ parts[curpart].name = "Rootfs";
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+ parts[curpart].offset = rootfsaddr;
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+ parts[curpart].size = rootfslen;
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+ curpart++;
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+ };
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+ if (sparelen > 0){
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+ parts[curpart].name = "OpenWrt";
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+ parts[curpart].offset = spareaddr;
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+ parts[curpart].size = sparelen;
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+ curpart++;
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+ };
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+ parts[curpart].name = "NVRAM";
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+ parts[curpart].offset = master->size - master->erasesize;
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+ parts[curpart].size = master->erasesize;
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+ for (i = 0; i < nrparts; i++) {
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+ printk("bcm963xx: Partition %d is %s offset %x and length %x\n", i, parts[i].name, parts[i].offset, parts[i].size);
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+ }
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+ *pparts = parts;
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+ vfree(buf);
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+ return nrparts;
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+};
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+
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+static struct mtd_partition bcm963xx_parts[] = {
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+ { name: "bootloader", size: 0, offset: 0, mask_flags: MTD_WRITEABLE },
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+ { name: "rootfs", size: 0, offset: 0},
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+ { name: "jffs2", size: 5 * 0x10000, offset: 57*0x10000}
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+};
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+
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+static int bcm963xx_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]);
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+
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+static int bcm963xx_detect_cfe(struct mtd_info *master)
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+{
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+ int idoffset = 0x4e0;
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+ static char idstring[8] = "CFE1CFE1";
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+ char buf[8];
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+ int ret;
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+ size_t retlen;
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+
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+ ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
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+ printk("bcm963xx: Read Signature value of %s\n", buf);
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+ return strcmp(idstring,buf);
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+}
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+
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+static int __init bcm963xx_mtd_init(void)
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+{
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+ printk("bcm963xx: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR);
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+ bcm963xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
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+
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+ if (!bcm963xx_map.virt) {
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+ printk("bcm963xx: Failed to ioremap\n");
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+ return -EIO;
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+ }
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+
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+ simple_map_init(&bcm963xx_map);
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+
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+ bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
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+
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+ if (bcm963xx_mtd_info) {
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+ bcm963xx_mtd_info->owner = THIS_MODULE;
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+
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+ //if (boot_loader_type == BOOT_CFE)
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+ if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0)
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+ {
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+ int parsed_nr_parts = 0;
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+ char * part_type;
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+ printk("bcm963xx: CFE bootloader detected\n");
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+ //add_mtd_device(bcm963xx_mtd_info);
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+ //add_mtd_partitions(bcm963xx_mtd_info, bcm963xx_parts, bcm963xx_parts_size);
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+ if (parsed_nr_parts == 0) {
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+ int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts);
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+ if (ret > 0) {
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+ part_type = "CFE";
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+ parsed_nr_parts = ret;
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+ }
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+ }
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+ add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
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+ return 0;
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+ }
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+ else
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+ {
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+ int parsed_nr_parts = 0;
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+ char * part_type;
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+
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+ if (bcm963xx_mtd_info->size > 0x00400000) {
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+ printk("Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size);
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+ bcm963xx_map.virt = (unsigned long)(EXTENDED_SIZE);
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+ }
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+
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+#ifdef CONFIG_MTD_REDBOOT_PARTS
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+ if (parsed_nr_parts == 0) {
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+ int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0);
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+ if (ret > 0) {
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+ part_type = "RedBoot";
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+ parsed_nr_parts = ret;
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+ }
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+ }
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+#endif
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+ add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
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+
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+ return 0;
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+ }
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+ }
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+ iounmap(bcm963xx_map.virt);
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+ return -ENXIO;
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+}
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+
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+static void __exit bcm963xx_mtd_cleanup(void)
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+{
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+ if (bcm963xx_mtd_info) {
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+ del_mtd_partitions(bcm963xx_mtd_info);
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+ map_destroy(bcm963xx_mtd_info);
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+ }
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+
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+ if (bcm963xx_map.virt) {
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+ iounmap(bcm963xx_map.virt);
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+ bcm963xx_map.virt = 0;
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+ }
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+}
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+
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+module_init(bcm963xx_mtd_init);
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+module_exit(bcm963xx_mtd_cleanup);
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+
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+MODULE_LICENSE("GPL");
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+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
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diff -urN linux-2.6.19/drivers/mtd/redboot.c linux-2.6.19.new/drivers/mtd/redboot.c
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--- linux-2.6.19/drivers/mtd/redboot.c 2006-12-18 17:09:14.000000000 +0100
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+++ linux-2.6.19.new/drivers/mtd/redboot.c 2006-12-18 17:14:26.000000000 +0100
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@@ -39,7 +39,7 @@
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return 1;
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}
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-static int parse_redboot_partitions(struct mtd_info *master,
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+int parse_redboot_partitions(struct mtd_info *master,
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struct mtd_partition **pparts,
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unsigned long fis_origin)
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{
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@@ -132,6 +132,14 @@
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goto out;
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}
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+ if (!fis_origin) {
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+ for (i = 0; i < numslots; i++) {
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+ if (!strncmp(buf[i].name, "RedBoot", 8)) {
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+ fis_origin = (buf[i].flash_base & (master->size << 1) - 1);
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+ }
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+ }
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+ }
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+
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for (i = 0; i < numslots; i++) {
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struct fis_list *new_fl, **prev;
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@@ -154,9 +162,8 @@
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new_fl->img = &buf[i];
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if (fis_origin) {
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buf[i].flash_base -= fis_origin;
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- } else {
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- buf[i].flash_base &= master->size-1;
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}
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+ buf[i].flash_base &= (master->size << 1) - 1;
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/* I'm sure the JFFS2 code has done me permanent damage.
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* I now think the following is _normal_
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