Merge tag 'for-linus-20141015' of git://git.infradead.org/linux-mtd

Pull MTD update from Brian Norris:
 "Sorry for delaying this a bit later than usual.  There's one mild
  regression from 3.16 that was noticed during the 3.17 cycle, and I
  meant to send a fix for it along with this pull request.  I'll
  probably try to queue it up for a later pull request once I've had a
  better look at it, hopefully by -rc2 at the latest.

  Summary for this pull:

  NAND
   - Cleanup for Denali driver
   - Atmel: add support for new page sizes
   - Atmel: fix up 'raw' mode support
   - Atmel: miscellaneous cleanups
   - New timing mode helpers for non-ONFI NAND
   - OMAP: allow driver to be (properly) built as a module
   - bcm47xx: RESET support and other cleanups

  SPI NOR
   - Miscellaneous cleanups, to prepare framework for wider use (some
     further work still pending)
   - Compile-time configuration to select 4K vs.  64K support for flash
     that support both (necessary for using UBIFS on some SPI NOR)

  A few scattered code quality fixes, detected by Coverity

  See the changesets for more"

* tag 'for-linus-20141015' of git://git.infradead.org/linux-mtd: (59 commits)
  mtd: nand: omap: Correct CONFIG_MTD_NAND_OMAP_BCH help message
  mtd: nand: Force omap_elm to be built as a module if omap2_nand is a module
  mtd: move support for struct flash_platform_data into m25p80
  mtd: spi-nor: add Kconfig option to disable 4K sectors
  mtd: nand: Move ELM driver and rename as omap_elm
  nand: omap2: Replace pr_err with dev_err
  nand: omap2: Remove horrible ifdefs to fix module probe
  mtd: nand: add Hynix's H27UCG8T2ATR-BC to nand_ids table
  mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
  mtd: physmap_of: Add non-obsolete map_rom probe
  mtd: physmap_of: Fix ROM support via OF
  MAINTAINERS: add l2-mtd.git, 'next' tree for MTD
  mtd: denali: fix indents and other trivial things
  mtd: denali: remove unnecessary parentheses
  mtd: denali: remove another set-but-unused variable
  mtd: denali: fix include guard and license block of denali.h
  mtd: nand: don't break long print messages
  mtd: bcm47xxnflash: replace some magic numbers
  mtd: bcm47xxnflash: NAND_CMD_RESET support
  mtd: bcm47xxnflash: add cmd_ctrl handler
  ...

4 files changed, 40 insertions, 11 deletions

diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 37ef6b194089..299d7d31fe53 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -153,7 +153,7 @@ struct cfi_ident {
         uint16_t MaxBufWriteSize;
         uint8_t  NumEraseRegions;
         uint32_t EraseRegionInfo[0]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
 
 /* Extended Query Structure for both PRI and ALT */
 
@@ -161,7 +161,7 @@ struct cfi_extquery {
         uint8_t  pri[3];
         uint8_t  MajorVersion;
         uint8_t  MinorVersion;
-} __attribute__((packed));
+} __packed;
 
 /* Vendor-Specific PRI for Intel/Sharp Extended Command Set (0x0001) */
 
@@ -180,7 +180,7 @@ struct cfi_pri_intelext {
         uint8_t  FactProtRegSize;
         uint8_t  UserProtRegSize;
         uint8_t  extra[0];
-} __attribute__((packed));
+} __packed;
 
 struct cfi_intelext_otpinfo {
         uint32_t ProtRegAddr;
@@ -188,7 +188,7 @@ struct cfi_intelext_otpinfo {
         uint8_t  FactProtRegSize;
         uint16_t UserGroups;
         uint8_t  UserProtRegSize;
-} __attribute__((packed));
+} __packed;
 
 struct cfi_intelext_blockinfo {
         uint16_t NumIdentBlocks;
@@ -196,7 +196,7 @@ struct cfi_intelext_blockinfo {
         uint16_t MinBlockEraseCycles;
         uint8_t  BitsPerCell;
         uint8_t  BlockCap;
-} __attribute__((packed));
+} __packed;
 
 struct cfi_intelext_regioninfo {
         uint16_t NumIdentPartitions;
@@ -205,7 +205,7 @@ struct cfi_intelext_regioninfo {
         uint8_t  NumOpAllowedSimEraMode;
         uint8_t  NumBlockTypes;
         struct cfi_intelext_blockinfo BlockTypes[1];
-} __attribute__((packed));
+} __packed;
 
 struct cfi_intelext_programming_regioninfo {
         uint8_t  ProgRegShift;
@@ -214,7 +214,7 @@ struct cfi_intelext_programming_regioninfo {
         uint8_t  Reserved2;
         uint8_t  ControlInvalid;
         uint8_t  Reserved3;
-} __attribute__((packed));
+} __packed;
 
 /* Vendor-Specific PRI for AMD/Fujitsu Extended Command Set (0x0002) */
 
@@ -233,7 +233,7 @@ struct cfi_pri_amdstd {
         uint8_t  VppMin;
         uint8_t  VppMax;
         uint8_t  TopBottom;
-} __attribute__((packed));
+} __packed;
 
 /* Vendor-Specific PRI for Atmel chips (command set 0x0002) */
 
@@ -245,18 +245,18 @@ struct cfi_pri_atmel {
         uint8_t BottomBoot;
         uint8_t BurstMode;
         uint8_t PageMode;
-} __attribute__((packed));
+} __packed;
 
 struct cfi_pri_query {
         uint8_t  NumFields;
         uint32_t ProtField[1]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
 
 struct cfi_bri_query {
         uint8_t  PageModeReadCap;
         uint8_t  NumFields;
         uint32_t ConfField[1]; /* Not host ordered */
-} __attribute__((packed));
+} __packed;
 
 #define P_ID_NONE               0x0000
 #define P_ID_INTEL_EXT          0x0001
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c300db3ae285..e4d451e4600b 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -587,6 +587,11 @@ struct nand_buffers {
  * @ecc_step_ds:        [INTERN] ECC step required by the @ecc_strength_ds,
  *                      also from the datasheet. It is the recommended ECC step
  *                      size, if known; if unknown, set to zero.
+ * @onfi_timing_mode_default: [INTERN] default ONFI timing mode. This field is
+ *                            either deduced from the datasheet if the NAND
+ *                            chip is not ONFI compliant or set to 0 if it is
+ *                            (an ONFI chip is always configured in mode 0
+ *                            after a NAND reset)
  * @numchips:           [INTERN] number of physical chips
  * @chipsize:           [INTERN] the size of one chip for multichip arrays
  * @pagemask:           [INTERN] page number mask = number of (pages / chip) - 1
@@ -671,6 +676,7 @@ struct nand_chip {
         uint8_t bits_per_cell;
         uint16_t ecc_strength_ds;
         uint16_t ecc_step_ds;
+        int onfi_timing_mode_default;
         int badblockpos;
         int badblockbits;
 
@@ -766,12 +772,17 @@ struct nand_chip {
  * @options: stores various chip bit options
  * @id_len: The valid length of the @id.
  * @oobsize: OOB size
+ * @ecc: ECC correctability and step information from the datasheet.
  * @ecc.strength_ds: The ECC correctability from the datasheet, same as the
  *                   @ecc_strength_ds in nand_chip{}.
  * @ecc.step_ds: The ECC step required by the @ecc.strength_ds, same as the
  *               @ecc_step_ds in nand_chip{}, also from the datasheet.
  *               For example, the "4bit ECC for each 512Byte" can be set with
  *               NAND_ECC_INFO(4, 512).
+ * @onfi_timing_mode_default: the default ONFI timing mode entered after a NAND
+ *                            reset. Should be deduced from timings described
+ *                            in the datasheet.
+ *
  */
 struct nand_flash_dev {
         char *name;
@@ -792,6 +803,7 @@ struct nand_flash_dev {
                 uint16_t strength_ds;
                 uint16_t step_ds;
         } ecc;
+        int onfi_timing_mode_default;
 };
 
 /**
diff --git a/include/linux/platform_data/elm.h b/include/linux/platform_data/elm.h
index 780d1e97f620..b8686c00f15f 100644
--- a/include/linux/platform_data/elm.h
+++ b/include/linux/platform_data/elm.h
@@ -42,8 +42,24 @@ struct elm_errorvec {
         int error_loc[16];
 };
 
+#if IS_ENABLED(CONFIG_MTD_NAND_OMAP_BCH)
 void elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
                 struct elm_errorvec *err_vec);
 int elm_config(struct device *dev, enum bch_ecc bch_type,
         int ecc_steps, int ecc_step_size, int ecc_syndrome_size);
+#else
+static inline void
+elm_decode_bch_error_page(struct device *dev, u8 *ecc_calc,
+                          struct elm_errorvec *err_vec)
+{
+}
+
+static inline int elm_config(struct device *dev, enum bch_ecc bch_type,
+                             int ecc_steps, int ecc_step_size,
+                             int ecc_syndrome_size)
+{
+        return -ENOSYS;
+}
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
+
 #endif /* __ELM_H */
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 16ec262dfcc8..090bbab0130a 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -71,6 +71,7 @@ struct omap_nand_platform_data {
         struct mtd_partition    *parts;
         int                     nr_parts;
         bool                    dev_ready;
+        bool                    flash_bbt;
         enum nand_io            xfer_type;
         int                     devsize;
         enum omap_ecc           ecc_opt;