target/linux/ramips/patches-2.6.37/011-mtd-cfi_cmdset_0002-force-word-write.patch

   1 --- a/drivers/mtd/chips/cfi_cmdset_0002.c
   2 +++ b/drivers/mtd/chips/cfi_cmdset_0002.c
   3 @@ -39,7 +39,7 @@
   4  #include <linux/mtd/xip.h>
   5
   6  #define AMD_BOOTLOC_BUG
   7 -#define FORCE_WORD_WRITE 0
   8 +#define FORCE_WORD_WRITE 1
   9
  10  #define MAX_WORD_RETRIES 3
  11
  12 @@ -50,7 +50,9 @@
  13
  14  static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
  15  static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
  16 +#if !FORCE_WORD_WRITE
  17  static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
  18 +#endif
  19  static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
  20  static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
  21  static void cfi_amdstd_sync (struct mtd_info *);
  22 @@ -186,6 +188,7 @@ static void fixup_amd_bootblock(struct m
  23  }
  24  #endif
  25
  26 +#if !FORCE_WORD_WRITE
  27  static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
  28  {
  29         struct map_info *map = mtd->priv;
  30 @@ -195,6 +198,7 @@ static void fixup_use_write_buffers(stru
  31                 mtd->write = cfi_amdstd_write_buffers;
  32         }
  33  }
  34 +#endif /* !FORCE_WORD_WRITE */
  35
  36  /* Atmel chips don't use the same PRI format as AMD chips */
  37  static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
  38 @@ -472,7 +476,7 @@ struct mtd_info *cfi_cmdset_0002(struct
  39
  40                         /*
  41                          * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4
  42 -                        * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19
  43 +                        * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19
  44                          *               http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf
  45                          *      Spec 1.4 http://www.spansion.com/Support/AppNotes/CFI_Spec_AN_03.pdf, page 9
  46                          */
  47 @@ -1386,6 +1390,7 @@ static int cfi_amdstd_write_words(struct
  48  /*
  49   * FIXME: interleaved mode not tested, and probably not supported!
  50   */
  51 +#if !FORCE_WORD_WRITE
  52  static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
  53                                     unsigned long adr, const u_char *buf,
  54                                     int len)
  55 @@ -1496,7 +1501,6 @@ static int __xipram do_write_buffer(stru
  56         return ret;
  57  }
  58
  59 -
  60  static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
  61                                     size_t *retlen, const u_char *buf)
  62  {
  63 @@ -1575,6 +1579,7 @@ static int cfi_amdstd_write_buffers(stru
  64
  65         return 0;
  66  }
  67 +#endif /* !FORCE_WORD_WRITE */
  68
  69
  70  /*