mtd.patch

patches for linux-2.6.

diff -Naur linux26-cvs/Documentation/DocBook/librs.tmpl linux26-new/Documentation/DocBook/librs.tmpl
--- linux26-cvs/Documentation/DocBook/librs.tmpl	2005-08-25 12:05:49.000000000 -0500
+++ linux26-new/Documentation/DocBook/librs.tmpl	2005-08-25 14:09:03.000000000 -0500
@@ -1,4 +1,6 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V3.1//EN"[]>
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+	"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
 
 <book id="Reed-Solomon-Library-Guide">
  <bookinfo>
@@ -223,7 +225,7 @@
 .....
 /* Decode 512 byte in data8.*/
 numerr = decode_rs8 (rs_decoder, NULL, NULL, 512, syn, 0, errpos, 0, corr);
-for (i = 0; i < numerr; i++) {
+for (i = 0; i &lt; numerr; i++) {
 	do_error_correction_in_your_buffer(errpos[i], corr[i]);
 }
 		</programlisting>
diff -Naur linux26-cvs/Documentation/DocBook/mtdnand.tmpl linux26-new/Documentation/DocBook/mtdnand.tmpl
--- linux26-cvs/Documentation/DocBook/mtdnand.tmpl	2005-08-25 12:05:49.000000000 -0500
+++ linux26-new/Documentation/DocBook/mtdnand.tmpl	2005-08-25 14:09:03.000000000 -0500
@@ -1,4 +1,6 @@
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V3.1//EN"[]>
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+	"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
 
 <book id="MTD-NAND-Guide">
  <bookinfo>
@@ -238,9 +240,9 @@
 	struct nand_chip *this = (struct nand_chip *) mtd->priv;
 	switch(cmd){
 		case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT;  break;
-		case NAND_CTL_CLRCLE: this->IO_ADDR_W &= ~CLE_ADRR_BIT; break;
+		case NAND_CTL_CLRCLE: this->IO_ADDR_W &amp;= ~CLE_ADRR_BIT; break;
 		case NAND_CTL_SETALE: this->IO_ADDR_W |= ALE_ADRR_BIT;  break;
-		case NAND_CTL_CLRALE: this->IO_ADDR_W &= ~ALE_ADRR_BIT; break;
+		case NAND_CTL_CLRALE: this->IO_ADDR_W &amp;= ~ALE_ADRR_BIT; break;
 	}
 }
 		</programlisting>
@@ -391,7 +393,7 @@
 	/* Deselect all chips, set all nCE pins high */
 	GPIO(BOARD_NAND_NCE) |= 0xff;	
 	if (chip >= 0)
-		GPIO(BOARD_NAND_NCE) &= ~ (1 << chip);	
+		GPIO(BOARD_NAND_NCE) &amp;= ~ (1 &lt;&lt; chip);
 }
 		</programlisting>
 		<para>
@@ -405,8 +407,8 @@
 	struct nand_chip *this = (struct nand_chip *) mtd->priv;
 	
 	/* Deselect all chips */
-	this->IO_ADDR_R &= ~BOARD_NAND_ADDR_MASK;
-	this->IO_ADDR_W &= ~BOARD_NAND_ADDR_MASK;
+	this->IO_ADDR_R &amp;= ~BOARD_NAND_ADDR_MASK;
+	this->IO_ADDR_W &amp;= ~BOARD_NAND_ADDR_MASK;
 	switch (chip) {
 	case 0:
 		this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIP0;
diff -Naur linux26-cvs/drivers/mtd/Kconfig linux26-new/drivers/mtd/Kconfig
--- linux26-cvs/drivers/mtd/Kconfig	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/Kconfig	2005-08-25 14:10:30.000000000 -0500
@@ -1,4 +1,4 @@
-# $Id: Kconfig,v 1.7 2004/11/22 11:33:56 ijc Exp $
+# $Id: Kconfig,v 1.10 2005/07/11 10:39:27 gleixner Exp $
 
 menu "Memory Technology Devices (MTD)"
 
@@ -27,6 +27,15 @@
 	help
 	  Determines the verbosity level of the MTD debugging messages.
 
+config MTD_CONCAT
+	tristate "MTD concatenating support"
+	depends on MTD
+	help
+	  Support for concatenating several MTD devices into a single
+	  (virtual) one. This allows you to have -for example- a JFFS(2)
+	  file system spanning multiple physical flash chips. If unsure,
+	  say 'Y'.
+
 config MTD_PARTITIONS
 	bool "MTD partitioning support"
 	depends on MTD
@@ -40,15 +49,6 @@
 	  devices. Partitioning on NFTL 'devices' is a different - that's the
 	  'normal' form of partitioning used on a block device.
 
-config MTD_CONCAT
-	tristate "MTD concatenating support"
-	depends on MTD
-	help
-	  Support for concatenating several MTD devices into a single
-	  (virtual) one. This allows you to have -for example- a JFFS(2)
-	  file system spanning multiple physical flash chips. If unsure,
-	  say 'Y'.
-
 config MTD_REDBOOT_PARTS
 	tristate "RedBoot partition table parsing"
 	depends on MTD_PARTITIONS
@@ -253,6 +253,16 @@
 	  permitted to copy, modify and distribute the code as you wish. Just
 	  not use it.
 
+config RFD_FTL
+        tristate "Resident Flash Disk (Flash Translation Layer) support"
+	depends on MTD
+	---help---
+	  This provides support for the flash translation layer known 
+	  as the Resident Flash Disk (RFD), as used by the Embedded BIOS 
+	  of General Software. There is a blurb at:
+
+		http://www.gensw.com/pages/prod/bios/rfd.htm
+
 source "drivers/mtd/chips/Kconfig"
 
 source "drivers/mtd/maps/Kconfig"
diff -Naur linux26-cvs/drivers/mtd/Makefile linux26-new/drivers/mtd/Makefile
--- linux26-cvs/drivers/mtd/Makefile	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/Makefile	2005-08-25 14:11:38.000000000 -0500
@@ -1,7 +1,7 @@
 #
 # Makefile for the memory technology device drivers.
 #
-# $Id: Makefile.common,v 1.5 2004/08/10 20:51:49 dwmw2 Exp $
+# $Id: Makefile.common,v 1.7 2005/07/11 10:39:27 gleixner Exp $
 
 # Core functionality.
 mtd-y				:= mtdcore.o
@@ -20,8 +20,9 @@
 obj-$(CONFIG_FTL)		+= ftl.o mtd_blkdevs.o
 obj-$(CONFIG_NFTL)		+= nftl.o mtd_blkdevs.o
 obj-$(CONFIG_INFTL)		+= inftl.o mtd_blkdevs.o
+obj-$(CONFIG_RFD_FTL)		+= rfd_ftl.o mtd_blkdevs.o
 
 nftl-objs		:= nftlcore.o nftlmount.o
 inftl-objs		:= inftlcore.o inftlmount.o
 
-obj-y		+= chips/ maps/ devices/ nand/
+obj-y		+= chips/ maps/ devices/ nand/ 
diff -Naur linux26-cvs/drivers/mtd/afs.c linux26-new/drivers/mtd/afs.c
--- linux26-cvs/drivers/mtd/afs.c	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/afs.c	2005-08-25 14:09:02.000000000 -0500
@@ -21,7 +21,7 @@
    This is access code for flashes using ARM's flash partitioning 
    standards.
 
-   $Id: afs.c,v 1.13 2004/02/27 22:09:59 rmk Exp $
+   $Id: afs.c,v 1.14 2005/07/06 18:31:48 gleixner Exp $
 
 ======================================================================*/
 
@@ -219,7 +219,7 @@
 	 */
 	for (idx = off = 0; off < mtd->size; off += mtd->erasesize) {
 		struct image_info_struct iis;
-		u_int iis_ptr, img_ptr, size;
+		u_int iis_ptr, img_ptr;
 
 		/* Read the footer. */
 		ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
@@ -236,21 +236,9 @@
 			continue;
 
 		strcpy(str, iis.name);
-		size = mtd->erasesize + off - img_ptr;
-
-		/*
-		 * In order to support JFFS2 partitions on this layout,
-		 * we must lie to MTD about the real size of JFFS2
-		 * partitions; this ensures that the AFS flash footer
-		 * won't be erased by JFFS2.  Please ensure that your
-		 * JFFS2 partitions are given image numbers between
-		 * 1000 and 2000 inclusive.
-		 */
-		if (iis.imageNumber >= 1000 && iis.imageNumber < 2000)
-			size -= mtd->erasesize;
 
 		parts[idx].name		= str;
-		parts[idx].size		= size;
+		parts[idx].size		= (iis.length + mtd->erasesize - 1) & ~(mtd->erasesize - 1);
 		parts[idx].offset	= img_ptr;
 		parts[idx].mask_flags	= 0;
 
diff -Naur linux26-cvs/drivers/mtd/chips/Kconfig linux26-new/drivers/mtd/chips/Kconfig
--- linux26-cvs/drivers/mtd/chips/Kconfig	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/chips/Kconfig	2005-08-25 14:09:02.000000000 -0500
@@ -1,5 +1,5 @@
 # drivers/mtd/chips/Kconfig
-# $Id: Kconfig,v 1.13 2004/12/01 15:49:10 nico Exp $
+# $Id: Kconfig,v 1.16 2005/07/11 09:37:59 gleixner Exp $
 
 menu "RAM/ROM/Flash chip drivers"
 	depends on MTD!=n
@@ -155,6 +155,31 @@
 	  If your flash chips are interleaved in eights - i.e. you have eight
 	  flash chips addressed by each bus cycle, then say 'Y'.
 
+config MTD_OTP
+	bool "Protection Registers aka one-time programmable (OTP) bits"
+	depends on MTD_CFI_ADV_OPTIONS
+	default n
+	help
+	  This enables support for reading, writing and locking so called
+	  "Protection Registers" present on some flash chips.
+	  A subset of them are pre-programmed at the factory with a
+	  unique set of values. The rest is user-programmable.
+
+	  The user-programmable Protection Registers contain one-time
+	  programmable (OTP) bits; when programmed, register bits cannot be
+	  erased. Each Protection Register can be accessed multiple times to
+	  program individual bits, as long as the register remains unlocked.
+
+	  Each Protection Register has an associated Lock Register bit. When a
+	  Lock Register bit is programmed, the associated Protection Register
+	  can only be read; it can no longer be programmed. Additionally,
+	  because the Lock Register bits themselves are OTP, when programmed,
+	  Lock Register bits cannot be erased. Therefore, when a Protection
+	  Register is locked, it cannot be unlocked.
+
+	  This feature should therefore be used with extreme care. Any mistake
+	  in the programming of OTP bits will waste them.
+
 config MTD_CFI_INTELEXT
 	tristate "Support for Intel/Sharp flash chips"
 	depends on MTD_GEN_PROBE
@@ -275,7 +300,7 @@
 
 config MTD_XIP
 	bool "XIP aware MTD support"
-	depends on !SMP && MTD_CFI_INTELEXT && EXPERIMENTAL
+	depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && (ARM || ARM26)
 	default y if XIP_KERNEL
 	help
 	  This allows MTD support to work with flash memory which is also
diff -Naur linux26-cvs/drivers/mtd/chips/amd_flash.c linux26-new/drivers/mtd/chips/amd_flash.c
--- linux26-cvs/drivers/mtd/chips/amd_flash.c	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/chips/amd_flash.c	2005-08-25 14:09:02.000000000 -0500
@@ -3,7 +3,7 @@
  *
  * Author: Jonas Holmberg <[e-mail]>
  *
- * $Id: amd_flash.c,v 1.26 2004/11/20 12:49:04 dwmw2 Exp $
+ * $Id: amd_flash.c,v 1.27 2005/02/04 07:43:09 jonashg Exp $
  *
  * Copyright (c) 2001 Axis Communications AB
  *
@@ -67,7 +67,6 @@
 #define AM29LV160DT	0x22C4
 #define AM29LV160DB	0x2249
 #define AM29BDS323D     0x22D1
-#define AM29BDS643D	0x227E
 
 /* Atmel */
 #define AT49xV16x	0x00C0
@@ -618,17 +617,6 @@
 			{ .offset = 0x3f0000, .erasesize = 0x02000, .numblocks =  8 },
 		}
 	}, {
-		.mfr_id = MANUFACTURER_AMD,
-		.dev_id = AM29BDS643D,
-		.name = "AMD AM29BDS643D",
-		.size = 0x00800000,
-		.numeraseregions = 3,
-		.regions = {
-			{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 96 },
-			{ .offset = 0x600000, .erasesize = 0x10000, .numblocks = 31 },
-			{ .offset = 0x7f0000, .erasesize = 0x02000, .numblocks =  8 },
-		}
-	}, {
 		.mfr_id = MANUFACTURER_ATMEL,
 		.dev_id = AT49xV16x,
 		.name = "Atmel AT49xV16x",
diff -Naur linux26-cvs/drivers/mtd/chips/cfi_cmdset_0001.c linux26-new/drivers/mtd/chips/cfi_cmdset_0001.c
--- linux26-cvs/drivers/mtd/chips/cfi_cmdset_0001.c	2005-08-25 12:05:58.000000000 -0500
+++ linux26-new/drivers/mtd/chips/cfi_cmdset_0001.c	2005-08-25 14:09:02.000000000 -0500
@@ -4,7 +4,7 @@
  *
  * (C) 2000 Red Hat. GPL'd
  *
- * $Id: cfi_cmdset_0001.c,v 1.164 2004/11/16 18:29:00 dwmw2 Exp $
+ * $Id: cfi_cmdset_0001.c,v 1.183 2005/08/06 04:46:56 nico Exp $
  *
  * 
  * 10/10/2000	Nicolas Pitre <[e-mail]>
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/reboot.h>
 #include <linux/mtd/xip.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/mtd.h>
@@ -48,16 +49,26 @@
 #define M50LPW080       0x002F
 
 static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
-//static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
-//static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
 static int cfi_intelext_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+static int cfi_intelext_writev(struct mtd_info *, const struct kvec *, unsigned long, loff_t, size_t *);
 static int cfi_intelext_erase_varsize(struct mtd_info *, struct erase_info *);
 static void cfi_intelext_sync (struct mtd_info *);
 static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len);
 static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len);
+#ifdef CONFIG_MTD_OTP
+static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_write_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+static int cfi_intelext_lock_user_prot_reg (struct mtd_info *, loff_t, size_t);
+static int cfi_intelext_get_fact_prot_info (struct mtd_info *,
+					    struct otp_info *, size_t);
+static int cfi_intelext_get_user_prot_info (struct mtd_info *,
+					    struct otp_info *, size_t);
+#endif
 static int cfi_intelext_suspend (struct mtd_info *);
 static void cfi_intelext_resume (struct mtd_info *);
+static int cfi_intelext_reboot (struct notifier_block *, unsigned long, void *);
 
 static void cfi_intelext_destroy(struct mtd_info *);
 
@@ -95,6 +106,7 @@
 static void cfi_tell_features(struct cfi_pri_intelext *extp)
 {
 	int i;
+	printk("  Extended Query version %c.%c\n", extp->MajorVersion, extp->MinorVersion);
 	printk("  Feature/Command Support:      %4.4X\n", extp->FeatureSupport);
 	printk("     - Chip Erase:              %s\n", extp->FeatureSupport&1?"supported":"unsupported");
 	printk("     - Suspend Erase:           %s\n", extp->FeatureSupport&2?"supported":"unsupported");
@@ -106,7 +118,8 @@
 	printk("     - Page-mode read:          %s\n", extp->FeatureSupport&128?"supported":"unsupported");
 	printk("     - Synchronous read:        %s\n", extp->FeatureSupport&256?"supported":"unsupported");
 	printk("     - Simultaneous operations: %s\n", extp->FeatureSupport&512?"supported":"unsupported");
-	for (i=10; i<32; i++) {
+	printk("     - Extended Flash Array:    %s\n", extp->FeatureSupport&1024?"supported":"unsupported");
+	for (i=11; i<32; i++) {
 		if (extp->FeatureSupport & (1<<i)) 
 			printk("     - Unknown Bit %X:      supported\n", i);
 	}
@@ -120,12 +133,18 @@
 	
 	printk("  Block Status Register Mask: %4.4X\n", extp->BlkStatusRegMask);
 	printk("     - Lock Bit Active:      %s\n", extp->BlkStatusRegMask&1?"yes":"no");
-	printk("     - Valid Bit Active:     %s\n", extp->BlkStatusRegMask&2?"yes":"no");
-	for (i=2; i<16; i++) {
+	printk("     - Lock-Down Bit Active: %s\n", extp->BlkStatusRegMask&2?"yes":"no");
+	for (i=2; i<3; i++) {
 		if (extp->BlkStatusRegMask & (1<<i))
 			printk("     - Unknown Bit %X Active: yes\n",i);
 	}
-	
+	printk("     - EFA Lock Bit:         %s\n", extp->BlkStatusRegMask&16?"yes":"no");
+	printk("     - EFA Lock-Down Bit:    %s\n", extp->BlkStatusRegMask&32?"yes":"no");
+	for (i=6; i<16; i++) {
+		if (extp->BlkStatusRegMask & (1<<i))
+			printk("     - Unknown Bit %X Active: yes\n",i);
+	}
+
 	printk("  Vcc Logic Supply Optimum Program/Erase Voltage: %d.%d V\n", 
 	       extp->VccOptimal >> 4, extp->VccOptimal & 0xf);
 	if (extp->VppOptimal)
@@ -197,6 +216,7 @@
 	if (cfi->cfiq->BufWriteTimeoutTyp) {
 		printk(KERN_INFO "Using buffer write method\n" );
 		mtd->write = cfi_intelext_write_buffers;
+		mtd->writev = cfi_intelext_writev;
 	}
 }
 
@@ -242,20 +262,30 @@
 	if (!extp)
 		return NULL;
 
+	if (extp->MajorVersion != '1' ||
+	    (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+		printk(KERN_ERR "  Unknown Intel/Sharp Extended Query "
+		       "version %c.%c.\n",  extp->MajorVersion,
+		       extp->MinorVersion);
+		kfree(extp);
+		return NULL;
+	}
+
 	/* Do some byteswapping if necessary */
 	extp->FeatureSupport = le32_to_cpu(extp->FeatureSupport);
 	extp->BlkStatusRegMask = le16_to_cpu(extp->BlkStatusRegMask);
 	extp->ProtRegAddr = le16_to_cpu(extp->ProtRegAddr);
 
-	if (extp->MajorVersion == '1' && extp->MinorVersion == '3') {
+	if (extp->MajorVersion == '1' && extp->MinorVersion >= '3') {
 		unsigned int extra_size = 0;
 		int nb_parts, i;
 
 		/* Protection Register info */
-		extra_size += (extp->NumProtectionFields - 1) * (4 + 6);
+		extra_size += (extp->NumProtectionFields - 1) *
+			      sizeof(struct cfi_intelext_otpinfo);
 
 		/* Burst Read info */
-		extra_size += 6;
+		extra_size += (extp->MinorVersion < '4') ? 6 : 5;
 
 		/* Number of hardware-partitions */
 		extra_size += 1;
@@ -263,6 +293,10 @@
 			goto need_more;
 		nb_parts = extp->extra[extra_size - 1];
 
+		/* skip the sizeof(partregion) field in CFI 1.4 */
+		if (extp->MinorVersion >= '4')
+			extra_size += 2;
+
 		for (i = 0; i < nb_parts; i++) {
 			struct cfi_intelext_regioninfo *rinfo;