Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (82 commits) [MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI Flash [MTD] m25p80: add FAST_READ access support to M25Pxx [MTD] [NAND] bf5xx_nand: Avoid crash if bfin_mac is installed. [MTD] [NAND] at91_nand: control NCE signal [MTD] [NAND] AT91 hardware ECC compile fix for at91sam9263 / at91sam9260 [MTD] [NAND] Hardware ECC controller on at91sam9263 / at91sam9260 [JFFS2] Introduce dbg_readinode2 log level, use it to shut read_dnode() up [JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure. [JFFS2] Add erase_checking_list to hold blocks being marked. UBI: add a message [JFFS2] Return values of jffs2_block_check_erase error paths [MTD] Clean up AR7 partition map support [MTD] [NOR] Fix Intel CFI driver for collie flash [JFFS2] Finally remove redundant ref->__totlen field. [JFFS2] Honour TEST_TOTLEN macro in debugging code. ref->__totlen is going! [JFFS2] Add paranoia debugging for superblock counts [JFFS2] Fix free space leak with in-band cleanmarkers [JFFS2] Self-sufficient #includes in jffs2_fs_i.h: include <linux/mutex.h> [MTD] [NAND] Verify probe by retrying to checking the results match [MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board ...
2026-05-01 15:00:59 -07:00 · 2008-04-25 12:25:48 -07:00
parent 5421d05906 3887ed5231
commit 7e97b28309
89 changed files with 3339 additions and 496 deletions
@@ -0,0 +1,212 @@
+What:		/sys/class/ubi/
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		The ubi/ class sub-directory belongs to the UBI subsystem and
+		provides general UBI information, per-UBI device information
+		and per-UBI volume information.
+
+What:		/sys/class/ubi/version
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		This file contains version of the latest supported UBI on-media
+		format. Currently it is 1, and there is no plan to change this.
+		However, if in the future UBI needs on-flash format changes
+		which cannot be done in a compatible manner, a new format
+		version will be added. So this is a mechanism for possible
+		future backward-compatible (but forward-incompatible)
+		improvements.
+
+What:		/sys/class/ubiX/
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		The /sys/class/ubi0, /sys/class/ubi1, etc directories describe
+		UBI devices (UBI device 0, 1, etc). They contain general UBI
+		device information and per UBI volume information (each UBI
+		device may have many UBI volumes)
+
+What:		/sys/class/ubi/ubiX/avail_eraseblocks
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Amount of available logical eraseblock. For example, one may
+		create a new UBI volume which has this amount of logical
+		eraseblocks.
+
+What:		/sys/class/ubi/ubiX/bad_peb_count
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Count of bad physical eraseblocks on the underlying MTD device.
+
+What:		/sys/class/ubi/ubiX/bgt_enabled
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Contains ASCII "0\n" if the UBI background thread is disabled,
+		and ASCII "1\n" if it is enabled.
+
+What:		/sys/class/ubi/ubiX/dev
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Major and minor numbers of the character device corresponding
+		to this UBI device (in <major>:<minor> format).
+
+What:		/sys/class/ubi/ubiX/eraseblock_size
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Maximum logical eraseblock size this UBI device may provide. UBI
+		volumes may have smaller logical eraseblock size because of their
+		alignment.
+
+What:		/sys/class/ubi/ubiX/max_ec
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Maximum physical eraseblock erase counter value.
+
+What:		/sys/class/ubi/ubiX/max_vol_count
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Maximum number of volumes which this UBI device may have.
+
+What:		/sys/class/ubi/ubiX/min_io_size
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Minimum input/output unit size. All the I/O may only be done
+		in fractions of the contained number.
+
+What:		/sys/class/ubi/ubiX/mtd_num
+Date:		January 2008
+KernelVersion:	2.6.25
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Number of the underlying MTD device.
+
+What:		/sys/class/ubi/ubiX/reserved_for_bad
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Number of physical eraseblocks reserved for bad block handling.
+
+What:		/sys/class/ubi/ubiX/total_eraseblocks
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Total number of good (not marked as bad) physical eraseblocks on
+		the underlying MTD device.
+
+What:		/sys/class/ubi/ubiX/volumes_count
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Count of volumes on this UBI device.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		The /sys/class/ubi/ubiX/ubiX_0/, /sys/class/ubi/ubiX/ubiX_1/,
+		etc directories describe UBI volumes on UBI device X (volumes
+		0, 1, etc).
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/alignment
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Volume alignment - the value the logical eraseblock size of
+		this volume has to be aligned on. For example, 2048 means that
+		logical eraseblock size is multiple of 2048. In other words,
+		volume logical eraseblock size is UBI device logical eraseblock
+		size aligned to the alignment value.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/corrupted
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Contains ASCII "0\n" if the UBI volume is OK, and ASCII "1\n"
+		if it is corrupted (e.g., due to an interrupted volume update).
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/data_bytes
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		The amount of data this volume contains. This value makes sense
+		only for static volumes, and for dynamic volume it equivalent
+		to the total volume size in bytes.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/dev
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Major and minor numbers of the character device corresponding
+		to this UBI volume (in <major>:<minor> format).
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/name
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Volume name.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/reserved_ebs
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Count of physical eraseblock reserved for this volume.
+		Equivalent to the volume size in logical eraseblocks.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/type
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Volume type. Contains ASCII "dynamic\n" for dynamic volumes and
+		"static\n" for static volumes.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/upd_marker
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Contains ASCII "0\n" if the update marker is not set for this
+		volume, and "1\n" if it is set. The update marker is set when
+		volume update starts, and cleaned when it ends. So the presence
+		of the update marker indicates that the volume is being updated
+		at the moment of the update was interrupted. The later may be
+		checked using the "corrupted" sysfs file.
+
+What:		/sys/class/ubi/ubiX/ubiX_Y/usable_eb_size
+Date:		July 2006
+KernelVersion:	2.6.22
+Contact:	Artem Bityutskiy <dedekind@infradead.org>
+Description:
+		Logical eraseblock size of this volume. Equivalent to logical
+		eraseblock size of the device aligned on the volume alignment
+		value.
@@ -0,0 +1,30 @@
+			S3C24XX NAND Support
+			====================
+
+Introduction
+------------
+
+Small Page NAND
+---------------
+
+The driver uses a 512 byte (1 page) ECC code for this setup. The
+ECC code is not directly compatible with the default kernel ECC
+code, so the driver enforces its own OOB layout and ECC parameters
+
+Large Page NAND
+---------------
+
+The driver is capable of handling NAND flash with a 2KiB page
+size, with support for hardware ECC generation and correction.
+
+Unlike the 512byte page mode, the driver generates ECC data for
+each 256 byte block in an 2KiB page. This means that more than
+one error in a page can be rectified. It also means that the
+OOB layout remains the default kernel layout for these flashes.
+
+
+Document Author
+---------------
+
+Ben Dooks, Copyright 2007 Simtec Electronics
+
@@ -156,6 +156,8 @@ NAND
  controller. If there are any problems the latest linux-mtd
  code can be found from http://www.linux-mtd.infradead.org/

+  For more information see Documentation/arm/Samsung-S3C24XX/NAND.txt
+

 Serial
 ------
@@ -158,6 +158,12 @@ config MTD_OF_PARTS
 	  the partition map from the children of the flash node,
 	  as described in Documentation/powerpc/booting-without-of.txt.

+config MTD_AR7_PARTS
+	tristate "TI AR7 partitioning support"
+	depends on MTD_PARTITIONS
+	---help---
+	  TI AR7 partitioning support
+
 comment "User Modules And Translation Layers"

 config MTD_CHAR
@@ -11,6 +11,7 @@ obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
 obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
+obj-$(CONFIG_MTD_AR7_PARTS)	+= ar7part.o
 obj-$(CONFIG_MTD_OF_PARTS)      += ofpart.o

 # 'Users' - code which presents functionality to userspace.
@@ -0,0 +1,151 @@
+/*
+ * Copyright © 2007 Eugene Konev <ejka@openwrt.org>
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * TI AR7 flash partition table.
+ * Based on ar7 map by Felix Fietkau <nbd@openwrt.org>
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/bootmem.h>
+#include <linux/magic.h>
+
+#define AR7_PARTS	4
+#define ROOT_OFFSET	0xe0000
+
+#define LOADER_MAGIC1	le32_to_cpu(0xfeedfa42)
+#define LOADER_MAGIC2	le32_to_cpu(0xfeed1281)
+
+#ifndef SQUASHFS_MAGIC
+#define SQUASHFS_MAGIC	0x73717368
+#endif
+
+struct ar7_bin_rec {
+	unsigned int checksum;
+	unsigned int length;
+	unsigned int address;
+};
+
+static struct mtd_partition ar7_parts[AR7_PARTS];
+
+static int create_mtd_partitions(struct mtd_info *master,
+				 struct mtd_partition **pparts,
+				 unsigned long origin)
+{
+	struct ar7_bin_rec header;
+	unsigned int offset;
+	size_t len;
+	unsigned int pre_size = master->erasesize, post_size = 0;
+	unsigned int root_offset = ROOT_OFFSET;
+
+	int retries = 10;
+
+	ar7_parts[0].name = "loader";
+	ar7_parts[0].offset = 0;
+	ar7_parts[0].size = master->erasesize;
+	ar7_parts[0].mask_flags = MTD_WRITEABLE;
+
+	ar7_parts[1].name = "config";
+	ar7_parts[1].offset = 0;
+	ar7_parts[1].size = master->erasesize;
+	ar7_parts[1].mask_flags = 0;
+
+	do { /* Try 10 blocks starting from master->erasesize */
+		offset = pre_size;
+		master->read(master, offset,
+			     sizeof(header), &len, (uint8_t *)&header);
+		if (!strncmp((char *)&header, "TIENV0.8", 8))
+			ar7_parts[1].offset = pre_size;
+		if (header.checksum == LOADER_MAGIC1)
+			break;
+		if (header.checksum == LOADER_MAGIC2)
+			break;
+		pre_size += master->erasesize;
+	} while (retries--);
+
+	pre_size = offset;
+
+	if (!ar7_parts[1].offset) {
+		ar7_parts[1].offset = master->size - master->erasesize;
+		post_size = master->erasesize;
+	}
+
+	switch (header.checksum) {
+	case LOADER_MAGIC1:
+		while (header.length) {
+			offset += sizeof(header) + header.length;
+			master->read(master, offset, sizeof(header),
+				     &len, (uint8_t *)&header);
+		}
+		root_offset = offset + sizeof(header) + 4;
+		break;
+	case LOADER_MAGIC2:
+		while (header.length) {
+			offset += sizeof(header) + header.length;
+			master->read(master, offset, sizeof(header),
+				     &len, (uint8_t *)&header);
+		}
+		root_offset = offset + sizeof(header) + 4 + 0xff;
+		root_offset &= ~(uint32_t)0xff;
+		break;
+	default:
+		printk(KERN_WARNING "Unknown magic: %08x\n", header.checksum);
+		break;
+	}
+
+	master->read(master, root_offset,
+		sizeof(header), &len, (u8 *)&header);
+	if (header.checksum != SQUASHFS_MAGIC) {
+		root_offset += master->erasesize - 1;
+		root_offset &= ~(master->erasesize - 1);
+	}
+
+	ar7_parts[2].name = "linux";
+	ar7_parts[2].offset = pre_size;
+	ar7_parts[2].size = master->size - pre_size - post_size;
+	ar7_parts[2].mask_flags = 0;
+
+	ar7_parts[3].name = "rootfs";
+	ar7_parts[3].offset = root_offset;
+	ar7_parts[3].size = master->size - root_offset - post_size;
+	ar7_parts[3].mask_flags = 0;
+
+	*pparts = ar7_parts;
+	return AR7_PARTS;
+}
+
+static struct mtd_part_parser ar7_parser = {
+	.owner = THIS_MODULE,
+	.parse_fn = create_mtd_partitions,
+	.name = "ar7part",
+};
+
+static int __init ar7_parser_init(void)
+{
+	return register_mtd_parser(&ar7_parser);
+}
+
+module_init(ar7_parser_init);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(	"Felix Fietkau <nbd@openwrt.org>, "
+		"Eugene Konev <ejka@openwrt.org>");
+MODULE_DESCRIPTION("MTD partitioning for TI AR7");
@@ -384,7 +384,7 @@ read_pri_intelext(struct map_info *map, __u16 adr)
 			if (extp_size > 4096) {
 				printk(KERN_ERR
 					"%s: cfi_pri_intelext is too fat\n",
-					__FUNCTION__);
+					__func__);
 				return NULL;
 			}
 			goto again;
@@ -619,6 +619,9 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
 				  sizeof(struct cfi_intelext_blockinfo);
 		}

+		if (!numparts)
+			numparts = 1;
+
 		/* Programming Region info */
 		if (extp->MinorVersion >= '4') {
 			struct cfi_intelext_programming_regioninfo *prinfo;
@@ -641,7 +644,7 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
 		if ((1 << partshift) < mtd->erasesize) {
 			printk( KERN_ERR
 				"%s: bad number of hw partitions (%d)\n",
-				__FUNCTION__, numparts);
+				__func__, numparts);
 			return -EINVAL;
 		}

@@ -1071,10 +1074,10 @@ static int __xipram xip_wait_for_operation(
 			chip->state = newstate;
 			map_write(map, CMD(0xff), adr);
 			(void) map_read(map, adr);
-			asm volatile (".rep 8; nop; .endr");
+			xip_iprefetch();
 			local_irq_enable();
 			spin_unlock(chip->mutex);
-			asm volatile (".rep 8; nop; .endr");
+			xip_iprefetch();
 			cond_resched();

 			/*
@@ -2013,7 +2016,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len)

 #ifdef DEBUG_LOCK_BITS
 	printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
-	       __FUNCTION__, ofs, len);
+	       __func__, ofs, len);
 	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
 		ofs, len, NULL);
 #endif
@@ -2023,7 +2026,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len)

 #ifdef DEBUG_LOCK_BITS
 	printk(KERN_DEBUG "%s: lock status after, ret=%d\n",
-	       __FUNCTION__, ret);
+	       __func__, ret);
 	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
 		ofs, len, NULL);
 #endif
@@ -2037,7 +2040,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)

 #ifdef DEBUG_LOCK_BITS
 	printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
-	       __FUNCTION__, ofs, len);
+	       __func__, ofs, len);
 	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
 		ofs, len, NULL);
 #endif
@@ -2047,7 +2050,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)

 #ifdef DEBUG_LOCK_BITS
 	printk(KERN_DEBUG "%s: lock status after, ret=%d\n",
-	       __FUNCTION__, ret);
+	       __func__, ret);
 	cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
 		ofs, len, NULL);
 #endif
@@ -220,6 +220,28 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param)
 	mtd->flags |= MTD_POWERUP_LOCK;
 }

+static void fixup_s29gl064n_sectors(struct mtd_info *mtd, void *param)
+{
+	struct map_info *map = mtd->priv;
+	struct cfi_private *cfi = map->fldrv_priv;
+
+	if ((cfi->cfiq->EraseRegionInfo[0] & 0xffff) == 0x003f) {
+		cfi->cfiq->EraseRegionInfo[0] |= 0x0040;
+		pr_warning("%s: Bad S29GL064N CFI data, adjust from 64 to 128 sectors\n", mtd->name);
+	}
+}
+
+static void fixup_s29gl032n_sectors(struct mtd_info *mtd, void *param)
+{
+	struct map_info *map = mtd->priv;
+	struct cfi_private *cfi = map->fldrv_priv;
+
+	if ((cfi->cfiq->EraseRegionInfo[1] & 0xffff) == 0x007e) {
+		cfi->cfiq->EraseRegionInfo[1] &= ~0x0040;
+		pr_warning("%s: Bad S29GL032N CFI data, adjust from 127 to 63 sectors\n", mtd->name);
+	}
+}
+
 static struct cfi_fixup cfi_fixup_table[] = {
 	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
 #ifdef AMD_BOOTLOC_BUG
@@ -231,6 +253,10 @@ static struct cfi_fixup cfi_fixup_table[] = {
 	{ CFI_MFR_AMD, 0x0056, fixup_use_secsi, NULL, },
 	{ CFI_MFR_AMD, 0x005C, fixup_use_secsi, NULL, },
 	{ CFI_MFR_AMD, 0x005F, fixup_use_secsi, NULL, },
+	{ CFI_MFR_AMD, 0x0c01, fixup_s29gl064n_sectors, NULL, },
+	{ CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors, NULL, },
+	{ CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors, NULL, },
+	{ CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors, NULL, },
 #if !FORCE_WORD_WRITE
 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
 #endif
@@ -723,10 +749,10 @@ static void __xipram xip_udelay(struct map_info *map, struct flchip *chip,
 			chip->erase_suspended = 1;
 			map_write(map, CMD(0xf0), adr);
 			(void) map_read(map, adr);
-			asm volatile (".rep 8; nop; .endr");
+			xip_iprefetch();
 			local_irq_enable();
 			spin_unlock(chip->mutex);
-			asm volatile (".rep 8; nop; .endr");
+			xip_iprefetch();
 			cond_resched();

 			/*
@@ -445,7 +445,7 @@ static inline int do_write_buffer(struct map_info *map, struct flchip *chip,
 retry:

 #ifdef DEBUG_CFI_FEATURES
-       printk("%s: chip->state[%d]\n", __FUNCTION__, chip->state);
+       printk("%s: chip->state[%d]\n", __func__, chip->state);
 #endif
 	spin_lock_bh(chip->mutex);

@@ -463,7 +463,7 @@ static inline int do_write_buffer(struct map_info *map, struct flchip *chip,
 		map_write(map, CMD(0x70), cmd_adr);
                chip->state = FL_STATUS;
 #ifdef DEBUG_CFI_FEATURES
-        printk("%s: 1 status[%x]\n", __FUNCTION__, map_read(map, cmd_adr));
+	printk("%s: 1 status[%x]\n", __func__, map_read(map, cmd_adr));
 #endif

 	case FL_STATUS:
@@ -591,7 +591,7 @@ static inline int do_write_buffer(struct map_info *map, struct flchip *chip,
        /* check for errors: 'lock bit', 'VPP', 'dead cell'/'unerased cell' or 'incorrect cmd' -- saw */
        if (map_word_bitsset(map, status, CMD(0x3a))) {
 #ifdef DEBUG_CFI_FEATURES
-		printk("%s: 2 status[%lx]\n", __FUNCTION__, status.x[0]);
+		printk("%s: 2 status[%lx]\n", __func__, status.x[0]);
 #endif
 		/* clear status */
 		map_write(map, CMD(0x50), cmd_adr);
@@ -625,9 +625,9 @@ static int cfi_staa_write_buffers (struct mtd_info *mtd, loff_t to,
 	ofs = to  - (chipnum << cfi->chipshift);

 #ifdef DEBUG_CFI_FEATURES
-        printk("%s: map_bankwidth(map)[%x]\n", __FUNCTION__, map_bankwidth(map));
-        printk("%s: chipnum[%x] wbufsize[%x]\n", __FUNCTION__, chipnum, wbufsize);
-        printk("%s: ofs[%x] len[%x]\n", __FUNCTION__, ofs, len);
+	printk("%s: map_bankwidth(map)[%x]\n", __func__, map_bankwidth(map));
+	printk("%s: chipnum[%x] wbufsize[%x]\n", __func__, chipnum, wbufsize);
+	printk("%s: ofs[%x] len[%x]\n", __func__, ofs, len);
 #endif

        /* Write buffer is worth it only if more than one word to write... */
@@ -893,7 +893,8 @@ retry:
 	return ret;
 }

-int cfi_staa_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
+static int cfi_staa_erase_varsize(struct mtd_info *mtd,
+				  struct erase_info *instr)
 {	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
 	unsigned long adr, len;
@@ -39,7 +39,7 @@ struct mtd_info *cfi_probe(struct map_info *map);
 #define xip_allowed(base, map) \
 do { \
 	(void) map_read(map, base); \
-	asm volatile (".rep 8; nop; .endr"); \
+	xip_iprefetch(); \
 	local_irq_enable(); \
 } while (0)

@@ -232,6 +232,11 @@ static int __xipram cfi_chip_setup(struct map_info *map,
 	cfi->mfr = cfi_read_query16(map, base);
 	cfi->id = cfi_read_query16(map, base + ofs_factor);

+	/* Get AMD/Spansion extended JEDEC ID */
+	if (cfi->mfr == CFI_MFR_AMD && (cfi->id & 0xff) == 0x7e)
+		cfi->id = cfi_read_query(map, base + 0xe * ofs_factor) << 8 |
+			  cfi_read_query(map, base + 0xf * ofs_factor);
+
 	/* Put it back into Read Mode */
 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
 	/* ... even if it's an Intel chip */
@@ -65,7 +65,7 @@ __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* n

 #ifdef CONFIG_MTD_XIP
 	(void) map_read(map, base);
-	asm volatile (".rep 8; nop; .endr");
+	xip_iprefetch();
 	local_irq_enable();
 #endif

@@ -132,6 +132,8 @@
 #define M29F800AB	0x0058
 #define M29W800DT	0x00D7
 #define M29W800DB	0x005B
+#define M29W400DT	0x00EE
+#define M29W400DB	0x00EF
 #define M29W160DT	0x22C4
 #define M29W160DB	0x2249
 #define M29W040B	0x00E3
@@ -160,6 +162,7 @@
 #define SST49LF030A	0x001C
 #define SST49LF040A	0x0051
 #define SST49LF080A	0x005B
+#define SST36VF3203	0x7354

 /* Toshiba */
 #define TC58FVT160	0x00C2
@@ -1113,7 +1116,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x10000,8),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_MACRONIX,
 		.dev_id		= MX29F016,
 		.name		= "Macronix MX29F016",
@@ -1125,7 +1128,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x10000,32),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_MACRONIX,
 		.dev_id		= MX29F004T,
 		.name		= "Macronix MX29F004T",
@@ -1140,7 +1143,7 @@ static const struct amd_flash_info jedec_table[] = {
 			ERASEINFO(0x02000,2),
 			ERASEINFO(0x04000,1),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_MACRONIX,
 		.dev_id		= MX29F004B,
 		.name		= "Macronix MX29F004B",
@@ -1218,7 +1221,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x40000,16),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST39LF512,
 		.name		= "SST 39LF512",
@@ -1230,7 +1233,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x01000,16),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST39LF010,
 		.name		= "SST 39LF010",
@@ -1242,7 +1245,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x01000,32),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id 	= SST29EE020,
 		.name		= "SST 29EE020",
@@ -1276,7 +1279,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x01000,64),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST39LF040,
 		.name		= "SST 39LF040",
@@ -1288,7 +1291,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x01000,128),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST39SF010A,
 		.name		= "SST 39SF010A",
@@ -1300,7 +1303,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x01000,32),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST39SF020A,
 		.name		= "SST 39SF020A",
@@ -1411,6 +1414,18 @@ static const struct amd_flash_info jedec_table[] = {
 			ERASEINFO(0x1000,256),
 			ERASEINFO(0x1000,256)
 		}
+	}, {
+		.mfr_id		= MANUFACTURER_SST,
+		.dev_id		= SST36VF3203,
+		.name		= "SST 36VF3203",
+		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
+		.dev_size	= SIZE_4MiB,
+		.cmd_set	= P_ID_AMD_STD,
+		.nr_regions	= 1,
+		.regions	= {
+			ERASEINFO(0x10000,64),
+		}
 	}, {
 		.mfr_id		= MANUFACTURER_ST,
 		.dev_id		= M29F800AB,
@@ -1426,7 +1441,7 @@ static const struct amd_flash_info jedec_table[] = {
 			ERASEINFO(0x08000,1),
 			ERASEINFO(0x10000,15),
 		}
-       }, {
+	}, {
 		.mfr_id		= MANUFACTURER_ST,	/* FIXME - CFI device? */
 		.dev_id		= M29W800DT,
 		.name		= "ST M29W800DT",
@@ -1456,6 +1471,36 @@ static const struct amd_flash_info jedec_table[] = {
 			ERASEINFO(0x08000,1),
 			ERASEINFO(0x10000,15)
 		}
+	},  {
+		.mfr_id         = MANUFACTURER_ST,
+		.dev_id         = M29W400DT,
+		.name           = "ST M29W400DT",
+		.devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+		.uaddr          = MTD_UADDR_0x0AAA_0x0555,
+		.dev_size       = SIZE_512KiB,
+		.cmd_set        = P_ID_AMD_STD,
+		.nr_regions     = 4,
+		.regions        = {
+			ERASEINFO(0x04000,7),
+			ERASEINFO(0x02000,1),
+			ERASEINFO(0x08000,2),
+			ERASEINFO(0x10000,1)
+		}
+	}, {
+		.mfr_id         = MANUFACTURER_ST,
+		.dev_id         = M29W400DB,
+		.name           = "ST M29W400DB",
+		.devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
+		.uaddr          = MTD_UADDR_0x0AAA_0x0555,
+		.dev_size       = SIZE_512KiB,
+		.cmd_set        = P_ID_AMD_STD,
+		.nr_regions     = 4,
+		.regions        = {
+			ERASEINFO(0x04000,1),
+			ERASEINFO(0x02000,2),
+			ERASEINFO(0x08000,1),
+			ERASEINFO(0x10000,7)
+		}
 	}, {
 		.mfr_id		= MANUFACTURER_ST,	/* FIXME - CFI device? */
 		.dev_id		= M29W160DT,
@@ -1486,7 +1531,7 @@ static const struct amd_flash_info jedec_table[] = {
 			ERASEINFO(0x08000,1),
 			ERASEINFO(0x10000,31)
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_ST,
 		.dev_id		= M29W040B,
 		.name		= "ST M29W040B",
@@ -1498,7 +1543,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x10000,8),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_ST,
 		.dev_id		= M50FW040,
 		.name		= "ST M50FW040",
@@ -1510,7 +1555,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x10000,8),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_ST,
 		.dev_id		= M50FW080,
 		.name		= "ST M50FW080",
@@ -1522,7 +1567,7 @@ static const struct amd_flash_info jedec_table[] = {
 		.regions	= {
 			ERASEINFO(0x10000,16),
 		}
-        }, {
+	}, {
 		.mfr_id		= MANUFACTURER_ST,
 		.dev_id		= M50FW016,
 		.name		= "ST M50FW016",
@@ -119,7 +119,8 @@ static struct mtd_partition * newpart(char *s,
 		char *p;

 	    	name = ++s;
-		if ((p = strchr(name, delim)) == 0)
+		p = strchr(name, delim);
+		if (!p)
 		{
 			printk(KERN_ERR ERRP "no closing %c found in partition name\n", delim);
 			return NULL;
@@ -159,9 +160,10 @@ static struct mtd_partition * newpart(char *s,
 			return NULL;
 		}
 		/* more partitions follow, parse them */
-		if ((parts = newpart(s + 1, &s, num_parts,
-		                     this_part + 1, &extra_mem, extra_mem_size)) == 0)
-		  return NULL;
+		parts = newpart(s + 1, &s, num_parts, this_part + 1,
+				&extra_mem, extra_mem_size);
+		if (!parts)
+			return NULL;
 	}
 	else
 	{	/* this is the last partition: allocate space for all */
@@ -308,9 +310,6 @@ static int parse_cmdline_partitions(struct mtd_info *master,
 	struct cmdline_mtd_partition *part;
 	char *mtd_id = master->name;

-	if(!cmdline)
-		return -EINVAL;
-
 	/* parse command line */
 	if (!cmdline_parsed)
 		mtdpart_setup_real(cmdline);
@@ -341,7 +340,7 @@ static int parse_cmdline_partitions(struct mtd_info *master,
 			return part->num_parts;
 		}
 	}
-	return -EINVAL;
+	return 0;
 }


@@ -77,6 +77,13 @@ config MTD_M25P80
 	  if you want to specify device partitioning or to use a device which
 	  doesn't support the JEDEC ID instruction.

+config M25PXX_USE_FAST_READ
+	bool "Use FAST_READ OPCode allowing SPI CLK <= 50MHz"
+	depends on MTD_M25P80
+	default y
+	help
+	  This option enables FAST_READ access supported by ST M25Pxx.
+
 config MTD_SLRAM
 	tristate "Uncached system RAM"
 	help
@@ -305,7 +305,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
 	}
 	list_add(&dev->list, &blkmtd_device_list);
 	INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
-			dev->mtd.name + strlen("blkmtd: "),
+			dev->mtd.name + strlen("block2mtd: "),
 			dev->mtd.erasesize >> 10, dev->mtd.erasesize);
 	return dev;

@@ -366,9 +366,9 @@ static inline void kill_final_newline(char *str)
 }


-#define parse_err(fmt, args...) do {		\
-	ERROR("block2mtd: " fmt "\n", ## args);	\
-	return 0;				\
+#define parse_err(fmt, args...) do {	\
+	ERROR(fmt, ## args);		\
+	return 0;			\
 } while (0)

 #ifndef MODULE
@@ -473,7 +473,7 @@ static void __devexit block2mtd_exit(void)
 		block2mtd_sync(&dev->mtd);
 		del_mtd_device(&dev->mtd);
 		INFO("mtd%d: [%s] removed", dev->mtd.index,
-				dev->mtd.name + strlen("blkmtd: "));
+				dev->mtd.name + strlen("block2mtd: "));
 		list_del(&dev->list);
 		block2mtd_free_device(dev);
 	}
@@ -275,7 +275,7 @@ static __u8 read8 (__u32 offset)
 {
   volatile __u8 *data = (__u8 *) (FLASH_OFFSET + offset);
 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(): 0x%.8x -> 0x%.2x\n",__FUNCTION__,offset,*data);
+   printk (KERN_DEBUG "%s(): 0x%.8x -> 0x%.2x\n", __func__, offset, *data);
 #endif
   return (*data);
 }
@@ -284,7 +284,7 @@ static __u32 read32 (__u32 offset)
 {
   volatile __u32 *data = (__u32 *) (FLASH_OFFSET + offset);
 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(): 0x%.8x -> 0x%.8x\n",__FUNCTION__,offset,*data);
+   printk (KERN_DEBUG "%s(): 0x%.8x -> 0x%.8x\n", __func__, offset, *data);
 #endif
   return (*data);
 }
@@ -294,7 +294,7 @@ static void write32 (__u32 x,__u32 offset)
   volatile __u32 *data = (__u32 *) (FLASH_OFFSET + offset);
   *data = x;
 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(): 0x%.8x <- 0x%.8x\n",__FUNCTION__,offset,*data);
+   printk (KERN_DEBUG "%s(): 0x%.8x <- 0x%.8x\n", __func__, offset, *data);
 #endif
 }

@@ -337,7 +337,7 @@ static inline int erase_block (__u32 offset)
   __u32 status;

 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(): 0x%.8x\n",__FUNCTION__,offset);
+   printk (KERN_DEBUG "%s(): 0x%.8x\n", __func__, offset);
 #endif

   /* erase and confirm */
@@ -371,7 +371,7 @@ static int flash_erase (struct mtd_info *mtd,struct erase_info *instr)
   int i,first;

 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(addr = 0x%.8x, len = %d)\n",__FUNCTION__,instr->addr,instr->len);
+   printk (KERN_DEBUG "%s(addr = 0x%.8x, len = %d)\n", __func__, instr->addr, instr->len);
 #endif

   /* sanity checks */
@@ -442,7 +442,7 @@ static int flash_erase (struct mtd_info *mtd,struct erase_info *instr)
 static int flash_read (struct mtd_info *mtd,loff_t from,size_t len,size_t *retlen,u_char *buf)
 {
 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(from = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) from,len);
+   printk (KERN_DEBUG "%s(from = 0x%.8x, len = %d)\n", __func__, (__u32)from, len);
 #endif

   /* sanity checks */
@@ -488,7 +488,7 @@ static inline int write_dword (__u32 offset,__u32 x)
   __u32 status;

 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(): 0x%.8x <- 0x%.8x\n",__FUNCTION__,offset,x);
+   printk (KERN_DEBUG "%s(): 0x%.8x <- 0x%.8x\n", __func__, offset, x);
 #endif

   /* setup writing */
@@ -524,7 +524,7 @@ static int flash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen
   int i,n;

 #ifdef LART_DEBUG
-   printk (KERN_DEBUG "%s(to = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) to,len);
+   printk (KERN_DEBUG "%s(to = 0x%.8x, len = %d)\n", __func__, (__u32)to, len);
 #endif

   *retlen = 0;
@@ -33,7 +33,7 @@
 /* Flash opcodes. */
 #define	OPCODE_WREN		0x06	/* Write enable */
 #define	OPCODE_RDSR		0x05	/* Read status register */
-#define	OPCODE_READ		0x03	/* Read data bytes (low frequency) */
+#define	OPCODE_NORM_READ	0x03	/* Read data bytes (low frequency) */
 #define	OPCODE_FAST_READ	0x0b	/* Read data bytes (high frequency) */
 #define	OPCODE_PP		0x02	/* Page program (up to 256 bytes) */
 #define	OPCODE_BE_4K 		0x20	/* Erase 4KiB block */
@@ -52,7 +52,15 @@

 /* Define max times to check status register before we give up. */
 #define	MAX_READY_WAIT_COUNT	100000
+#define	CMD_SIZE		4

+#ifdef CONFIG_M25PXX_USE_FAST_READ
+#define OPCODE_READ 	OPCODE_FAST_READ
+#define FAST_READ_DUMMY_BYTE 1
+#else
+#define OPCODE_READ 	OPCODE_NORM_READ
+#define FAST_READ_DUMMY_BYTE 0
+#endif

 #ifdef CONFIG_MTD_PARTITIONS
 #define	mtd_has_partitions()	(1)
@@ -68,7 +76,7 @@ struct m25p {
 	struct mtd_info		mtd;
 	unsigned		partitioned:1;
 	u8			erase_opcode;
-	u8			command[4];
+	u8			command[CMD_SIZE + FAST_READ_DUMMY_BYTE];
 };

 static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd)
@@ -151,7 +159,7 @@ static int wait_till_ready(struct m25p *flash)
 static int erase_sector(struct m25p *flash, u32 offset)
 {
 	DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB at 0x%08x\n",
-			flash->spi->dev.bus_id, __FUNCTION__,
+			flash->spi->dev.bus_id, __func__,
 			flash->mtd.erasesize / 1024, offset);

 	/* Wait until finished previous write command. */
@@ -167,7 +175,7 @@ static int erase_sector(struct m25p *flash, u32 offset)
 	flash->command[2] = offset >> 8;
 	flash->command[3] = offset;

-	spi_write(flash->spi, flash->command, sizeof(flash->command));
+	spi_write(flash->spi, flash->command, CMD_SIZE);

 	return 0;
 }
@@ -188,7 +196,7 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
 	u32 addr,len;

 	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %d\n",
-			flash->spi->dev.bus_id, __FUNCTION__, "at",
+			flash->spi->dev.bus_id, __func__, "at",
 			(u32)instr->addr, instr->len);

 	/* sanity checks */
@@ -240,7 +248,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 	struct spi_message m;

 	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n",
-			flash->spi->dev.bus_id, __FUNCTION__, "from",
+			flash->spi->dev.bus_id, __func__, "from",
 			(u32)from, len);

 	/* sanity checks */
@@ -253,8 +261,12 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 	spi_message_init(&m);
 	memset(t, 0, (sizeof t));

+	/* NOTE:
+	 * OPCODE_FAST_READ (if available) is faster.
+	 * Should add 1 byte DUMMY_BYTE.
+	 */
 	t[0].tx_buf = flash->command;
-	t[0].len = sizeof(flash->command);
+	t[0].len = CMD_SIZE + FAST_READ_DUMMY_BYTE;
 	spi_message_add_tail(&t[0], &m);

 	t[1].rx_buf = buf;
@@ -287,7 +299,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,

 	spi_sync(flash->spi, &m);

-	*retlen = m.actual_length - sizeof(flash->command);
+	*retlen = m.actual_length - CMD_SIZE - FAST_READ_DUMMY_BYTE;

 	mutex_unlock(&flash->lock);

@@ -308,7 +320,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 	struct spi_message m;

 	DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n",
-			flash->spi->dev.bus_id, __FUNCTION__, "to",
+			flash->spi->dev.bus_id, __func__, "to",
 			(u32)to, len);

 	if (retlen)
@@ -325,7 +337,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 	memset(t, 0, (sizeof t));

 	t[0].tx_buf = flash->command;
-	t[0].len = sizeof(flash->command);
+	t[0].len = CMD_SIZE;
 	spi_message_add_tail(&t[0], &m);

 	t[1].tx_buf = buf;
@@ -354,7 +366,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,

 		spi_sync(flash->spi, &m);

-		*retlen = m.actual_length - sizeof(flash->command);
+		*retlen = m.actual_length - CMD_SIZE;
 	} else {
 		u32 i;

@@ -364,7 +376,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 		t[1].len = page_size;
 		spi_sync(flash->spi, &m);

-		*retlen = m.actual_length - sizeof(flash->command);
+		*retlen = m.actual_length - CMD_SIZE;

 		/* write everything in PAGESIZE chunks */
 		for (i = page_size; i < len; i += page_size) {
@@ -387,8 +399,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
 			spi_sync(flash->spi, &m);

 			if (retlen)
-				*retlen += m.actual_length
-					- sizeof(flash->command);
+				*retlen += m.actual_length - CMD_SIZE;
 		}
 	}

@@ -435,6 +446,7 @@ static struct flash_info __devinitdata m25p_data [] = {
 	{ "at25fs040",  0x1f6604, 64 * 1024, 8, SECT_4K, },

 	{ "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, },
+	{ "at25df641",  0x1f4800, 64 * 1024, 128, SECT_4K, },

 	{ "at26f004",   0x1f0400, 64 * 1024, 8, SECT_4K, },
 	{ "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, },
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/mtd/compatmac.h>
 #include <linux/mtd/mtd.h>
+#include <linux/mtd/mtdram.h>

 static unsigned long total_size = CONFIG_MTDRAM_TOTAL_SIZE;
 static unsigned long erase_size = CONFIG_MTDRAM_ERASE_SIZE;
@@ -282,7 +282,7 @@ static int phram_setup(const char *val, struct kernel_param *kp)
 }

 module_param_call(phram, phram_setup, NULL, NULL, 000);
-MODULE_PARM_DESC(phram,"Memory region to map. \"map=<name>,<start>,<length>\"");
+MODULE_PARM_DESC(phram, "Memory region to map. \"phram=<name>,<start>,<length>\"");


 static int __init init_phram(void)
@@ -136,8 +136,6 @@ typedef struct partition_t {
 #endif
 } partition_t;

-void ftl_freepart(partition_t *part);
-
 /* Partition state flags */
 #define FTL_FORMATTED	0x01

@@ -1014,7 +1012,7 @@ static int ftl_writesect(struct mtd_blktrans_dev *dev,

 /*====================================================================*/

-void ftl_freepart(partition_t *part)
+static void ftl_freepart(partition_t *part)
 {
 	vfree(part->VirtualBlockMap);
 	part->VirtualBlockMap = NULL;
@@ -1069,7 +1067,7 @@ static void ftl_remove_dev(struct mtd_blktrans_dev *dev)
 	kfree(dev);
 }

-struct mtd_blktrans_ops ftl_tr = {
+static struct mtd_blktrans_ops ftl_tr = {
 	.name		= "ftl",
 	.major		= FTL_MAJOR,
 	.part_bits	= PART_BITS,
--- a/Show More
+++ b/Show More