target/linux/ar71xx/patches-4.14/411-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 @@ -40,7 +40,7 @@
   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_RETRIES 3
  11
  12 @@ -51,7 +51,9 @@
  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 @@ -202,6 +204,7 @@ 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)
  28  {
  29         struct map_info *map = mtd->priv;
  30 @@ -211,6 +214,7 @@ 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)
  38 @@ -1798,6 +1802,7 @@ static int cfi_amdstd_write_words(struct
  39  /*
  40   * FIXME: interleaved mode not tested, and probably not supported!
  41   */
  42 +#if !FORCE_WORD_WRITE
  43  static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
  44                                     unsigned long adr, const u_char *buf,
  45                                     int len)
  46 @@ -1930,7 +1935,6 @@ static int __xipram do_write_buffer(stru
  47         return ret;
  48  }
  49
  50 -
  51  static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
  52                                     size_t *retlen, const u_char *buf)
  53  {
  54 @@ -2005,6 +2009,7 @@ static int cfi_amdstd_write_buffers(stru
  55
  56         return 0;
  57  }
  58 +#endif /* !FORCE_WORD_WRITE */
  59
  60  /*
  61   * Wait for the flash chip to become ready to write data