---

yaml
---
r: 313288
b: refs/heads/master
c: c1cb438
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e95f2e790e98c61eb88caa5ee31a04e1dc7a8c59
+refs/heads/master: c1cb438522f2cd62fb3a261d66a549606c131c93

trunk/Documentation/ABI/testing/sysfs-block-rssd

@@ -1,5 +1,26 @@
+What:           /sys/block/rssd*/registers
+Date:           March 2012
+KernelVersion:  3.3
+Contact:        Asai Thambi S P <asamymuthupa@micron.com>
+Description:    This is a read-only file. Dumps below driver information and
+                hardware registers.
+                    - S ACTive
+                    - Command Issue
+                    - Completed
+                    - PORT IRQ STAT
+                    - HOST IRQ STAT
+                    - Allocated
+                    - Commands in Q
+
 What:           /sys/block/rssd*/status
 Date:           April 2012
 KernelVersion:  3.4
 Contact:        Asai Thambi S P <asamymuthupa@micron.com>
 Description:    This is a read-only file. Indicates the status of the device.
+
+What:           /sys/block/rssd*/flags
+Date:           May 2012
+KernelVersion:  3.5
+Contact:        Asai Thambi S P <asamymuthupa@micron.com>
+Description:    This is a read-only file. Dumps the flags in port and driver
+                data structure

trunk/Documentation/device-mapper/verity.txt

@@ -7,39 +7,39 @@ This target is read-only.
 
 Construction Parameters
 =======================
-    <version> <dev> <hash_dev>
+    <version> <dev> <hash_dev> <hash_start>
     <data_block_size> <hash_block_size>
     <num_data_blocks> <hash_start_block>
     <algorithm> <digest> <salt>
 
 <version>
-    This is the type of the on-disk hash format.
+    This is the version number of the on-disk format.
 
     0 is the original format used in the Chromium OS.
-      The salt is appended when hashing, digests are stored continuously and
-      the rest of the block is padded with zeros.
+	The salt is appended when hashing, digests are stored continuously and
+	the rest of the block is padded with zeros.
 
     1 is the current format that should be used for new devices.
-      The salt is prepended when hashing and each digest is
-      padded with zeros to the power of two.
+	The salt is prepended when hashing and each digest is
+	padded with zeros to the power of two.
 
 <dev>
-    This is the device containing data, the integrity of which needs to be
+    This is the device containing the data the integrity of which needs to be
     checked.  It may be specified as a path, like /dev/sdaX, or a device number,
     <major>:<minor>.
 
 <hash_dev>
-    This is the device that supplies the hash tree data.  It may be
+    This is the device that that supplies the hash tree data.  It may be
     specified similarly to the device path and may be the same device.  If the
-    same device is used, the hash_start should be outside the configured
-    dm-verity device.
+    same device is used, the hash_start should be outside of the dm-verity
+    configured device size.
 
 <data_block_size>
-    The block size on a data device in bytes.
-    Each block corresponds to one digest on the hash device.
+    The block size on a data device.  Each block corresponds to one digest on
+    the hash device.
 
 <hash_block_size>
-    The size of a hash block in bytes.
+    The size of a hash block.
 
 <num_data_blocks>
     The number of data blocks on the data device.  Additional blocks are
@@ -65,28 +65,28 @@ Construction Parameters
 Theory of operation
 ===================
 
-dm-verity is meant to be set up as part of a verified boot path.  This
+dm-verity is meant to be setup as part of a verified boot path.  This
 may be anything ranging from a boot using tboot or trustedgrub to just
 booting from a known-good device (like a USB drive or CD).
 
 When a dm-verity device is configured, it is expected that the caller
 has been authenticated in some way (cryptographic signatures, etc).
 After instantiation, all hashes will be verified on-demand during
 disk access.  If they cannot be verified up to the root node of the
-tree, the root hash, then the I/O will fail.  This should detect
+tree, the root hash, then the I/O will fail.  This should identify
 tampering with any data on the device and the hash data.
 
 Cryptographic hashes are used to assert the integrity of the device on a
-per-block basis. This allows for a lightweight hash computation on first read
-into the page cache. Block hashes are stored linearly, aligned to the nearest
-block size.
+per-block basis.  This allows for a lightweight hash computation on first read
+into the page cache.  Block hashes are stored linearly-aligned to the nearest
+block the size of a page.
 
 Hash Tree
 ---------
 
 Each node in the tree is a cryptographic hash.  If it is a leaf node, the hash
-of some data block on disk is calculated. If it is an intermediary node,
-the hash of a number of child nodes is calculated.
+is of some block data on disk.  If it is an intermediary node, then the hash is
+of a number of child nodes.
 
 Each entry in the tree is a collection of neighboring nodes that fit in one
 block.  The number is determined based on block_size and the size of the
@@ -110,46 +110,85 @@ alg = sha256, num_blocks = 32768, block_size = 4096
 On-disk format
 ==============
 
-The verity kernel code does not read the verity metadata on-disk header.
-It only reads the hash blocks which directly follow the header.
-It is expected that a user-space tool will verify the integrity of the
-verity header.
+Below is the recommended on-disk format. The verity kernel code does not
+read the on-disk header. It only reads the hash blocks which directly
+follow the header. It is expected that a user-space tool will verify the
+integrity of the verity_header and then call dmsetup with the correct
+parameters. Alternatively, the header can be omitted and the dmsetup
+parameters can be passed via the kernel command-line in a rooted chain
+of trust where the command-line is verified.
 
-Alternatively, the header can be omitted and the dmsetup parameters can
-be passed via the kernel command-line in a rooted chain of trust where
-the command-line is verified.
+The on-disk format is especially useful in cases where the hash blocks
+are on a separate partition. The magic number allows easy identification
+of the partition contents. Alternatively, the hash blocks can be stored
+in the same partition as the data to be verified. In such a configuration
+the filesystem on the partition would be sized a little smaller than
+the full-partition, leaving room for the hash blocks.
+
+struct superblock {
+	uint8_t signature[8]
+		"verity\0\0";
+
+	uint8_t version;
+		1 - current format
+
+	uint8_t data_block_bits;
+		log2(data block size)
+
+	uint8_t hash_block_bits;
+		log2(hash block size)
+
+	uint8_t pad1[1];
+		zero padding
+
+	uint16_t salt_size;
+		big-endian salt size
+
+	uint8_t pad2[2];
+		zero padding
+
+	uint32_t data_blocks_hi;
+		big-endian high 32 bits of the 64-bit number of data blocks
+
+	uint32_t data_blocks_lo;
+		big-endian low 32 bits of the 64-bit number of data blocks
+
+	uint8_t algorithm[16];
+		cryptographic algorithm
+
+	uint8_t salt[384];
+		salt (the salt size is specified above)
+
+	uint8_t pad3[88];
+		zero padding to 512-byte boundary
+}
 
 Directly following the header (and with sector number padded to the next hash
 block boundary) are the hash blocks which are stored a depth at a time
 (starting from the root), sorted in order of increasing index.
 
-The full specification of kernel parameters and on-disk metadata format
-is available at the cryptsetup project's wiki page
-  http://code.google.com/p/cryptsetup/wiki/DMVerity
-
 Status
 ======
 V (for Valid) is returned if every check performed so far was valid.
 If any check failed, C (for Corruption) is returned.
 
 Example
 =======
-Set up a device:
-  # dmsetup create vroot --readonly --table \
-    "0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\
+
+Setup a device:
+  dmsetup create vroot --table \
+    "0 2097152 "\
+    "verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\
     "4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\
     "1234000000000000000000000000000000000000000000000000000000000000"
 
 A command line tool veritysetup is available to compute or verify
-the hash tree or activate the kernel device. This is available from
-the cryptsetup upstream repository http://code.google.com/p/cryptsetup/
-(as a libcryptsetup extension).
-
-Create hash on the device:
-  # veritysetup format /dev/sda1 /dev/sda2
-  ...
-  Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
-
-Activate the device:
-  # veritysetup create vroot /dev/sda1 /dev/sda2 \
-    4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
+the hash tree or activate the kernel driver.  This is available from
+the LVM2 upstream repository and may be supplied as a package called
+device-mapper-verity-tools:
+    git://sources.redhat.com/git/lvm2
+    http://sourceware.org/git/?p=lvm2.git
+    http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2
+
+veritysetup -a vroot /dev/sda1 /dev/sda2 \
+	4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076

trunk/Documentation/devicetree/bindings/arm/omap/omap.txt

@@ -47,6 +47,3 @@ Boards:
 
 - AM335X EVM : Software Developement Board for AM335x
   compatible = "ti,am335x-evm", "ti,am33xx", "ti,omap3"
-
-- AM335X Bone : Low cost community board
-  compatible = "ti,am335x-bone", "ti,am33xx", "ti,omap3"

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-emc.txt → trunk/Documentation/devicetree/bindings/arm/tegra/emc.txt

@@ -15,7 +15,7 @@ Child device nodes describe the memory settings for different configurations and
 
 Example:
 
-	memory-controller@7000f400 {
+	emc@7000f400 {
 		#address-cells = < 1 >;
 		#size-cells = < 0 >;
 		compatible = "nvidia,tegra20-emc";

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt

@@ -8,7 +8,7 @@ Required properties:
 - interrupts : Should contain MC General interrupt.
 
 Example:
-	memory-controller@0x7000f000 {
+	mc {
 		compatible = "nvidia,tegra20-mc";
 		reg = <0x7000f000 0x024
 		       0x7000f03c 0x3c4>;

trunk/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-mc.txt

@@ -8,7 +8,7 @@ Required properties:
 - interrupts : Should contain MC General interrupt.
 
 Example:
-	memory-controller {
+	mc {
 		compatible = "nvidia,tegra30-mc";
 		reg = <0x7000f000 0x010
 		       0x7000f03c 0x1b4

trunk/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt

@@ -8,8 +8,9 @@ Required properties:
   by low 16 pins and the second one is for high 16 pins.
 - gpio-controller : Marks the device node as a gpio controller.
 - #gpio-cells : Should be two.  The first cell is the pin number and
-  the second cell is used to specify optional parameters (currently
-  unused).
+  the second cell is used to specify the gpio polarity:
+      0 = active high
+      1 = active low
 
 Example:
 

trunk/Documentation/devicetree/bindings/gpio/gpio-mxs.txt

@@ -13,8 +13,9 @@ Required properties for GPIO node:
 - interrupts : Should be the port interrupt shared by all 32 pins.
 - gpio-controller : Marks the device node as a gpio controller.
 - #gpio-cells : Should be two.  The first cell is the pin number and
-  the second cell is used to specify optional parameters (currently
-  unused).
+  the second cell is used to specify the gpio polarity:
+      0 = active high
+      1 = active low
 - interrupt-controller: Marks the device node as an interrupt controller.
 - #interrupt-cells : Should be 2.  The first cell is the GPIO number.
   The second cell bits[3:0] is used to specify trigger type and level flags:

trunk/Documentation/devicetree/bindings/input/fsl-mma8450.txt

@@ -2,7 +2,6 @@
 
 Required properties:
 - compatible : "fsl,mma8450".
-- reg: the I2C address of MMA8450
 
 Example:
 

trunk/Documentation/devicetree/bindings/mfd/mc13xxx.txt

@@ -46,8 +46,8 @@ Examples:
 
 ecspi@70010000 { /* ECSPI1 */
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
-		   <&gpio4 25 0>; /* GPIO4_25 */
+	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+		   <&gpio3 25 0>; /* GPIO4_25 */
 	status = "okay";
 
 	pmic: mc13892@0 {

trunk/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

@@ -29,6 +29,6 @@ esdhc@70008000 {
 	compatible = "fsl,imx51-esdhc";
 	reg = <0x70008000 0x4000>;
 	interrupts = <2>;
-	cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
-	wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
+	cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
+	wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
 };

trunk/Documentation/devicetree/bindings/net/fsl-fec.txt

@@ -19,6 +19,6 @@ ethernet@83fec000 {
 	reg = <0x83fec000 0x4000>;
 	interrupts = <87>;
 	phy-mode = "mii";
-	phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
+	phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
 	local-mac-address = [00 04 9F 01 1B B9];
 };

trunk/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt

@@ -17,6 +17,6 @@ ecspi@70010000 {
 	reg = <0x70010000 0x4000>;
 	interrupts = <36>;
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
-		   <&gpio3 25 0>; /* GPIO3_25 */
+	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+		   <&gpio3 25 0>; /* GPIO4_25 */
 };