Merge tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd

Pull mtd updates from David Woodhouse:
 - factor out common code from MTD tests
 - nand-gpio cleanup and portability to non-ARM
 - m25p80 support for 4-byte addressing chips, other new chips
 - pxa3xx cleanup and support for new platforms
 - remove obsolete alauda, octagon-5066 drivers
 - erase/write support for bcm47xxsflash
 - improve detection of ECC requirements for NAND, controller setup
 - NFC acceleration support for atmel-nand, read/write via SRAM
 - etc

* tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd: (184 commits)
  mtd: chips: Add support for PMC SPI Flash chips in m25p80.c
  mtd: ofpart: use for_each_child_of_node() macro
  mtd: mtdswap: replace strict_strtoul() with kstrtoul()
  mtd cs553x_nand: use kzalloc() instead of memset
  mtd: atmel_nand: fix error return code in atmel_nand_probe()
  mtd: bcm47xxsflash: writing support
  mtd: bcm47xxsflash: implement erasing support
  mtd: bcm47xxsflash: convert to module_platform_driver instead of init/exit
  mtd: bcm47xxsflash: convert kzalloc to avoid invalid access
  mtd: remove alauda driver
  mtd: nand: mxc_nand: mark 'const' properly
  mtd: maps: cfi_flagadm: add missing __iomem annotation
  mtd: spear_smi: add missing __iomem annotation
  mtd: r852: Staticize local symbols
  mtd: nandsim: Staticize local symbols
  mtd: impa7: add missing __iomem annotation
  mtd: sm_ftl: Staticize local symbols
  mtd: m25p80: add support for mr25h10
  mtd: m25p80: make CONFIG_M25PXX_USE_FAST_READ safe to enable
  mtd: m25p80: Pass flags through CAT25_INFO macro
  ...

5 files changed, 67 insertions, 6 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3105644b3bfc..bfd119ace6ad 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -128,9 +128,8 @@ KernelVersion:	3.4
 Contact:        linux-mtd@lists.infradead.org
 Description:
                 Maximum number of bit errors that the device is capable of
-                correcting within each region covering an ecc step.  This will
-                always be a non-negative integer.  Note that some devices will
-                have multiple ecc steps within each writesize region.
+                correcting within each region covering an ECC step (see
+                ecc_step_size).  This will always be a non-negative integer.
 
                 In the case of devices lacking any ECC capability, it is 0.
 
@@ -173,3 +172,15 @@ Description:
                 This is generally applicable only to NAND flash devices with ECC
                 capability.  It is ignored on devices lacking ECC capability;
                 i.e., devices for which ecc_strength is zero.
+
+What:           /sys/class/mtd/mtdX/ecc_step_size
+Date:           May 2013
+KernelVersion:  3.10
+Contact:        linux-mtd@lists.infradead.org
+Description:
+                The size of a single region covered by ECC, known as the ECC
+                step.  Devices may have several equally sized ECC steps within
+                each writesize region.
+
+                It will always be a non-negative integer.  In the case of
+                devices lacking any ECC capability, it is 0.
diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index fe122d6e686f..a248f42a121e 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -1224,8 +1224,6 @@ in this page</entry>
 #define NAND_BBT_CREATE         0x00000200
 /* Search good / bad pattern through all pages of a block */
 #define NAND_BBT_SCANALLPAGES   0x00000400
-/* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY      0x00000800
 /* Write bbt if neccecary */
 #define NAND_BBT_WRITE          0x00001000
 /* Read and write back block contents when writing bbt */
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
index d555421ea49f..c4728839d0c1 100644
--- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
@@ -15,6 +15,7 @@ Required properties:
   optional gpio and may be set to 0 if not present.
 
 Optional properties:
+- atmel,nand-has-dma : boolean to support dma transfer for nand read/write.
 - nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default.
   Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
   "soft_bch".
@@ -29,6 +30,14 @@ Optional properties:
   sector size 1024.
 - nand-bus-width : 8 or 16 bus width if not present 8
 - nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
+- Nand Flash Controller(NFC) is a slave driver under Atmel nand flash
+  - Required properties:
+    - compatible : "atmel,sama5d3-nfc".
+    - reg : should specify the address and size used for NFC command registers,
+            NFC registers and NFC Sram. NFC Sram address and size can be absent
+            if don't want to use it.
+  - Optional properties:
+    - atmel,write-by-sram: boolean to enable NFC write by sram.
 
 Examples:
 nand0: nand@40000000,0 {
@@ -77,3 +86,22 @@ nand0: nand@40000000 {
                 ...
         };
 };
+
+/* for NFC supported chips */
+nand0: nand@40000000 {
+        compatible = "atmel,at91rm9200-nand";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+        ...
+        nfc@70000000 {
+                compatible = "atmel,sama5d3-nfc";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                reg = <
+                        0x70000000 0x10000000   /* NFC Command Registers */
+                        0xffffc000 0x00000070   /* NFC HSMC regs */
+                        0x00200000 0x00100000   /* NFC SRAM banks */
+                >;
+        };
+};
diff --git a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
index 2240ac09f6ba..ec42935f3908 100644
--- a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
@@ -1,4 +1,5 @@
-* FSMC NAND
+ST Microelectronics Flexible Static Memory Controller (FSMC)
+NAND Interface
 
 Required properties:
 - compatible : "st,spear600-fsmc-nand", "stericsson,fsmc-nand"
@@ -9,6 +10,26 @@ Optional properties:
 - bank-width : Width (in bytes) of the device.  If not present, the width
   defaults to 1 byte
 - nand-skip-bbtscan: Indicates the the BBT scanning should be skipped
+- timings: array of 6 bytes for NAND timings. The meanings of these bytes
+  are:
+  byte 0 TCLR  : CLE to RE delay in number of AHB clock cycles, only 4 bits
+                 are valid. Zero means one clockcycle, 15 means 16 clock
+                 cycles.
+  byte 1 TAR   : ALE to RE delay, 4 bits are valid. Same format as TCLR.
+  byte 2 THIZ  : number of HCLK clock cycles during which the data bus is
+                 kept in Hi-Z (tristate) after the start of a write access.
+                 Only valid for write transactions. Zero means zero cycles,
+                 255 means 255 cycles.
+  byte 3 THOLD : number of HCLK clock cycles to hold the address (and data
+                 when writing) after the command deassertation. Zero means
+                 one cycle, 255 means 256 cycles.
+  byte 4 TWAIT : number of HCLK clock cycles to assert the command to the
+                 NAND flash in response to SMWAITn. Zero means 1 cycle,
+                 255 means 256 cycles.
+  byte 5 TSET  : number of HCLK clock cycles to assert the address before the
+                 command is asserted. Zero means one cycle, 255 means 256
+                 cycles.
+- bank: default NAND bank to use (0-3 are valid, 0 is the default).
 
 Example:
 
@@ -24,6 +45,8 @@ Example:
 
                 bank-width = <1>;
                 nand-skip-bbtscan;
+                timings = /bits/ 8 <0 0 0 2 3 0>;
+                bank = <1>;
 
                 partition@0 {
                         ...
diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt
index 9315ac96b49b..8e5557da1955 100644
--- a/Documentation/devicetree/bindings/mtd/partition.txt
+++ b/Documentation/devicetree/bindings/mtd/partition.txt
@@ -4,6 +4,7 @@ Partitions can be represented by sub-nodes of an mtd device. This can be used
 on platforms which have strong conventions about which portions of a flash are
 used for what purposes, but which don't use an on-flash partition table such
 as RedBoot.
+NOTE: if the sub-node has a compatible string, then it is not a partition.
 
 #address-cells & #size-cells must both be present in the mtd device. There are
 two valid values for both: