10 files changed, 354 insertions, 45 deletions

diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 00e2b575021f..88d3d8fbf9f2 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -520,6 +520,7 @@ struct cfi_fixup {
 
 #define CFI_MFR_AMD 0x0001
 #define CFI_MFR_ATMEL 0x001F
+#define CFI_MFR_SAMSUNG 0x00EC
 #define CFI_MFR_ST  0x0020      /* STMicroelectronics */
 
 void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);
diff --git a/include/linux/mtd/ftl.h b/include/linux/mtd/ftl.h
index 0be442f881dd..0555f7a0b9ed 100644
--- a/include/linux/mtd/ftl.h
+++ b/include/linux/mtd/ftl.h
@@ -32,25 +32,25 @@
 #define _LINUX_FTL_H
 
 typedef struct erase_unit_header_t {
-    u_int8_t    LinkTargetTuple[5];
-    u_int8_t    DataOrgTuple[10];
-    u_int8_t    NumTransferUnits;
-    u_int32_t   EraseCount;
-    u_int16_t   LogicalEUN;
-    u_int8_t    BlockSize;
-    u_int8_t    EraseUnitSize;
-    u_int16_t   FirstPhysicalEUN;
-    u_int16_t   NumEraseUnits;
-    u_int32_t   FormattedSize;
-    u_int32_t   FirstVMAddress;
-    u_int16_t   NumVMPages;
-    u_int8_t    Flags;
-    u_int8_t    Code;
-    u_int32_t   SerialNumber;
-    u_int32_t   AltEUHOffset;
-    u_int32_t   BAMOffset;
-    u_int8_t    Reserved[12];
-    u_int8_t    EndTuple[2];
+    uint8_t     LinkTargetTuple[5];
+    uint8_t     DataOrgTuple[10];
+    uint8_t     NumTransferUnits;
+    uint32_t    EraseCount;
+    uint16_t    LogicalEUN;
+    uint8_t     BlockSize;
+    uint8_t     EraseUnitSize;
+    uint16_t    FirstPhysicalEUN;
+    uint16_t    NumEraseUnits;
+    uint32_t    FormattedSize;
+    uint32_t    FirstVMAddress;
+    uint16_t    NumVMPages;
+    uint8_t     Flags;
+    uint8_t     Code;
+    uint32_t    SerialNumber;
+    uint32_t    AltEUHOffset;
+    uint32_t    BAMOffset;
+    uint8_t     Reserved[12];
+    uint8_t     EndTuple[2];
 } erase_unit_header_t;
 
 /* Flags in erase_unit_header_t */
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index aa30244492c6..b981b8772217 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -223,6 +223,7 @@ struct map_info {
            must leave it enabled. */
         void (*set_vpp)(struct map_info *, int);
 
+        unsigned long pfow_base;
         unsigned long map_priv_1;
         unsigned long map_priv_2;
         void *fldrv_priv;
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 64433eb411d7..3aa5d77c2cdb 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -15,6 +15,8 @@
 #include <linux/mtd/compatmac.h>
 #include <mtd/mtd-abi.h>
 
+#include <asm/div64.h>
+
 #define MTD_CHAR_MAJOR 90
 #define MTD_BLOCK_MAJOR 31
 #define MAX_MTD_DEVICES 32
@@ -25,20 +27,20 @@
 #define MTD_ERASE_DONE          0x08
 #define MTD_ERASE_FAILED        0x10
 
-#define MTD_FAIL_ADDR_UNKNOWN 0xffffffff
+#define MTD_FAIL_ADDR_UNKNOWN -1LL
 
 /* If the erase fails, fail_addr might indicate exactly which block failed.  If
    fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not
    specific to any particular block. */
 struct erase_info {
         struct mtd_info *mtd;
-        u_int32_t addr;
-        u_int32_t len;
-        u_int32_t fail_addr;
+        uint64_t addr;
+        uint64_t len;
+        uint64_t fail_addr;
         u_long time;
         u_long retries;
-        u_int dev;
-        u_int cell;
+        unsigned dev;
+        unsigned cell;
         void (*callback) (struct erase_info *self);
         u_long priv;
         u_char state;
@@ -46,9 +48,9 @@ struct erase_info {
 };
 
 struct mtd_erase_region_info {
-        u_int32_t offset;                       /* At which this region starts, from the beginning of the MTD */
-        u_int32_t erasesize;            /* For this region */
-        u_int32_t numblocks;            /* Number of blocks of erasesize in this region */
+        uint64_t offset;                        /* At which this region starts, from the beginning of the MTD */
+        uint32_t erasesize;             /* For this region */
+        uint32_t numblocks;             /* Number of blocks of erasesize in this region */
         unsigned long *lockmap;         /* If keeping bitmap of locks */
 };
 
@@ -100,14 +102,14 @@ struct mtd_oob_ops {
 
 struct mtd_info {
         u_char type;
-        u_int32_t flags;
-        u_int32_t size;  // Total size of the MTD
+        uint32_t flags;
+        uint64_t size;   // Total size of the MTD
 
         /* "Major" erase size for the device. Naïve users may take this
          * to be the only erase size available, or may use the more detailed
          * information below if they desire
          */
-        u_int32_t erasesize;
+        uint32_t erasesize;
         /* Minimal writable flash unit size. In case of NOR flash it is 1 (even
          * though individual bits can be cleared), in case of NAND flash it is
          * one NAND page (or half, or one-fourths of it), in case of ECC-ed NOR
@@ -115,10 +117,20 @@ struct mtd_info {
          * Any driver registering a struct mtd_info must ensure a writesize of
          * 1 or larger.
          */
-        u_int32_t writesize;
+        uint32_t writesize;
+
+        uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+        uint32_t oobavail;  // Available OOB bytes per block
 
-        u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
-        u_int32_t oobavail;  // Available OOB bytes per block
+        /*
+         * If erasesize is a power of 2 then the shift is stored in
+         * erasesize_shift otherwise erasesize_shift is zero. Ditto writesize.
+         */
+        unsigned int erasesize_shift;
+        unsigned int writesize_shift;
+        /* Masks based on erasesize_shift and writesize_shift */
+        unsigned int erasesize_mask;
+        unsigned int writesize_mask;
 
         // Kernel-only stuff starts here.
         const char *name;
@@ -190,8 +202,8 @@ struct mtd_info {
         void (*sync) (struct mtd_info *mtd);
 
         /* Chip-supported device locking */