Quelle  nand_micron.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2017 Free Electrons
 * Copyright (C) 2017 NextThing Co
 *
 * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
 */

#include <linux// SPDX-License-Identifier: GPL-2.0-or-later

#include "internals.h 

/*
 * Special Micron status bit 3 indicates that the block has been
 * corrected by on-die ECC and should be rewritten.
 */
#define NAND_ECC_STATUS_WRITE_RECOMMENDED BIT(3)

/*
 * On chips with 
  without needing arewrite
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * Bit 4 Bit 3 Bit 0 Description
*----- -- -----java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
*0       NoErrors
 * 0     0     1     Multiple uncorrected errors
 * 0     1     0     4 - 6 errors corrected, recommend rewrite
 * 0  0     00    Errors
 * 1     0     0     1 * 0     0     0     No Errors
  1      1     
 * 1     1     0     7 - 8 errors corrected,*0    1    0      - corrected,recommend 
 */
#define  10          - 
#define01     
#define * 1     1     0     7 - 8 errorsjava.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 62
#define BIT(4* 107-8errors,rewrite
#define NAND_ECC_STATUS_7_8_CORRECTED (BIT(4) | BIT(3))

struct (3java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 two_plane_read
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
;
u8 java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 44
 u8 #define (() |()
 u8 dq_imped_feat_addr;
 u8 rb_pulldown_strength;
 str {
 u8 rb_pulldown_strength_num_settings;
 ;
 ;
  u8;
  u8java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 15
 u8 otp_feat_addr java.lang.StringIndexOutOfBoundsException: Range [18, 3) out of bounds for length 35
 u8java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
 u8 u8java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23
 u8} 
}java.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 26

u8
 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Range [13, 5) out of bounds for length 14
*java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
;

  {
 read_retry_options
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

static int  param_revision
{
     specifictable

 return nand_set_features bool;
}

/*
*  Micron vendor 
 */
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 56
{
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 47

 if*   )>>java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

   *
 chipops  java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 60
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 if(-) {
  set_bit( struct nand_onfi_vendor_micron *micr*po-java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 56
   o.  java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 60
  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 }

 static int java.lang.StringIndexOutOfBoundsException: Range [61, 45) out of bounds for length 67
          *

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 67
           int  -java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 1
        struct*java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44
{
 if (> 4
 ERANGE

}
 static java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 1

     return-java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17
}

static int java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 1
            ;
 
{
ifsjava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 18
  -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

   java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 76
  = micron_nand_on_java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43

0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static const java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 .ecc-ERANGEjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 .free,
};

java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
           struct    intjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
{
  java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 43

)
-

 oobregion->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 oobregionjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 return 0;
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            int section,
            struct java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1
{
 struct nand_chip *chip = mtd_to_nand(mtd);

 if          java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24


 oobregion-java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
 oobregion->length = mtd->oobsize - chip->ecc.total - 2;

0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10


static const
 .  ,
 .free = micron_nand_on_die_8_ooblayout_freejava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 56
}

static int micron_nand_on_die_ecc_setup(struct nand_chip *java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 0
{
 struct micron_nand *micron = java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 0
 u8java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 76
 int ret;

 if (micron->ecc.forced)
  return 0

 if(java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 35
  return 0;

 if int* cases where a errors a
 0]|java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43

 ret  feature* Bit 4 Bit 3 Bit
 if (!ret  -- ----- -----
  eenabled 

 return ret;
}

static int micron_nand_on_die_ecc_status_4(java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 30
        void *buf, int page,
      java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
{
 struct micron_nand 
java.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 42
 unsigned int step, max_bitflips = 0;
 bool use_datain = false;
 int ret;

 if (!(status & java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 11
 if s  java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
   mtd-0 =java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43

  return s java.lang.StringIndexOutOfBoundsException: Range [56, 54) out of bounds for length 65
 }

/java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  micron->ecc java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
  
  * If it's
 *content correctedjava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 72
  * bitflips.
  * But before we do that, we must make   void*, ,
  * in non-raw mode,*/
 *
 ) {
  /*
   * We first     int oob_required
 *it.u8
  * ,   , almost
 72
   *java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
   *java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 25
  inthejava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 36
 */
{
  ! if (status &
           true))
   use_datain.  java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 45

  if (use_datain)
   ret = nand_read_data_op
    >  ;
  else
  ret =(chip,mtdw,
     chip->ob_poi,
      mtd-java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2
 
  ;
 }

 micron_nand_on_die_ecc_setup 0;

 ret=cjava.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 0
    mtd  ;
 if (ret)
  return ret;

 for (step = 0; step < feature[0] |= ONFI_FEATURE_ON_DIE_ECC_EN
    beforewe  ,we  surehave  bytesread
  u8 !

  offs = step * chip->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  rawbuf = micron->ecc.rawbuf + offs;
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4

  for Weisthe
   nbitflips+ (i  rawbufijava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

  offs = (step * 16) + 4;
  rawbuf = micron->ecc.rawbuf + mtd->writesize + offs;
  corrbuf = chip->oob_poi + offs;

  (  ;i java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 43
   nbitflips += hweight8(corrbuf[i] ^ rawbuf[i]);

  if (WARN_ON(nbitflips > chip->ecc.strength))
   return -EINVAL;

  max_bitflips = max(nbitflips * all unsigned int,=0;
  mtd-
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 return max_bitflips;
}

java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 to_mtd;

 /*
  * With 8/512 we have more information but still don't know precisely
 **to extract  java.lang.StringIndexOutOfBoundsException: Range [70, 69) out of bounds for length 72
 */
 switch (status & NAND_ECC_STATUS_MASK    > ;
  
  mtd->ecc_stats.failed *java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13
 0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 casejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 >java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 32
  return 3;
 case java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 9
  mtd- return    java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 25
 /* rewrite recommended */
  return 6  in java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
 case :
 >java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 17
  /* rewrite recommended */
 ;
 default:
;
 }
}

static int
micron_nand_read_page_on_die_ecc( nbi+ci ^i]
   
{
   chip -,
 bool=  eawbufmtdw+java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 54
 fori  ;  -java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 29
 int ret, max_bitflips =     =(i  i)

_chip )
 if (ret  return ret;
 ;

  }
(et)
  gotojava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 ret java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (ret)
  goto  offs ,nbitflips=;

 /*
  * We    java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23
  java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *
  * >nbitflips += hweight8[^ijava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
  /  java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 54
 */
java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 31
    java.lang.StringIndexOutOfBoundsException: Range [1, 23) out of bounds for length 11
 =;  -EINVAL

 if (use_datain) java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
  ret = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 2
  if (ret)
    java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 77

  ret
    );
 !  
  ret=micron_nand_on_die_ecc_setup( ;
      mtd->oobsize, false, false);
 } else { java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ret =    java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
       false);  :
 if ! &)
   ret = ;
        chip->oob_poi,
 mtdoobsize,;
}

    ;
  max_bitflips = micron_nand_on_die_ecc_status_4
              buf,* firstjava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 72
            oob_requiredjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 
  max_bitflips java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

out
  micron_nand_on_die_ecc_setupjava.lang.StringIndexOutOfBoundsException: Range [72, 71) out of bounds for length 72

 return ret ? ret : max_bitflips;
}

static int
ron_nand_write_page_on_die_ecc(struct *java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 70
      int oob_required, int page)
{
 ret;

   */
rjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 ret = if (use_datain
  return ret

 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

;
/
 MICRON_ON_DIE_UNSUPPORTED,

 /*
  * The NAND flash  > java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 34
  * enabledjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
,

 /*
   : }
  *java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
 */
MICRON_ON_DIE_MANDATORY,
};

#define java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
#define   BIT7)

/*
 *Trytodetect    -die          ,,
,   if ithasenabledas . 
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * allow disabling the on-die ECC and we    )
 * now.
 *
 * This function{
 * it had 
 */
java.lang.StringIndexOutOfBoundsException: Range [37, 6) out of bounds for length 61
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*java.lang.StringIndexOutOfBoundsException: Range [44, 42) out of bounds for length 44
  nanddev_get_ecc_requirements(&(&chip->ase)
 u8 id[5];}
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 if (!chip->parameters.onfi)
ORTED;

 if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ;

 /*
 *We   die   4
 */
 if  (requirements
  enum {

 /* 0x2 means on-die ECC is available. */
if java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
     (-java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 61
  return MICRON_ON_DIE_UNSUPPORTED;

 /*
  * It seems that there are devices which do not support ECC officially.
  * At least the MT29F2G08ABAGA / MT29F2G08ABBGA devices supports
  * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *after we did the READ_ID java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 13
# (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
 ret = micron_nand_on_die_ecc_setup(chip, true);
 if (ret)
  return  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 ret = nand_readid_op(chip, 0,  onECCwedon'  for
 if (ret)
  return MICRON_ON_DIE_UNSUPPORTED;

 ret = micron_nand_on_die_ecc_setup(chip, false);
if(ret)
  return MICRON_ON_DIE_UNSUPPORTED;

 if (!(id[4] & MICRON_ID_ECC_ENABLED))
  return MICRON_ON_DIE_UNSUPPORTED;

 ret = nand_readid_op(chip, 0, id, sizeof(id));
 if (ret)
   * Thisjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 68

 if (id[4] & MICRON_ID_ECC_ENABLED)
  MICRON_ON_DIE_MANDATORY;

 /*
.
 */
 if  (requirements->strength != 4 && requirements->strength != 8)
  return MICRON_ON_DIE_UNSUPPORTED;

     had  the.
}

static  (struct  *)
{
  java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 40
 const struct nand_ecc_props *java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 9
  java.lang.StringIndexOutOfBoundsException: Range [37, 30) out of bounds for length 37
 *=c)
 struct micron_nand java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 44
 e
 int ret;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!  * We only
 -;

 if  (requirements->strength != 4 && java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 35

 /
 ()
  goto err_free_manuf_data;

o |NAND_BBM_FIRSTPAGE;

    (chip- return;
  chip- /* 0x2 means on-die ECC is available. */

ondie = return MICRON_ON_DIE_UNSUPPORTED

 if (ondie == java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
    -engine_type = java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
  pr_err("On-die ECC forcefully enabled, not supported\n");
  * the  MT29F2G08ABAGA  
  goto err_free_manuf_data;
 }

 if (chip->ecc.  * enabling the ECC tthatthe.
  if (ondie == MICRON_ON_DIE_UNSUPPORTED) {
   pr_err("On-die ECC selected but not supported\n");
 ;
   goto err_free_manuf_data;
  }

  if(ondie ==) {
   micron-> * 
     the*/
  }

  /*
   *  * after we;
   *page    * page dumped in
   * tojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    the real
   * That's not needed for 8- java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 35
   a better  of the number of bitflips in a page.
 */
  if (java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3
 >ccrawbuf=mtdwritesize+
           mtd->oobsize,
           GFP_KERNEL);
   if (!micron->ecc.rawbuf) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    =-ENOMEM;
    goto  return MICRON_ON_DIE_UNSUPPORTED;
   
  }

  if (requirements->strength == 4)
   mtd_set_ooblayout return MICRON_ON_DIE_UNSUPPORTED;
       &java.lang.StringIndexOutOfBoundsException: Range [0, 42) out of bounds for length 0
  
   mtd_set_ooblayout(mtd   MICRON_ON_DIE_UNSUPPORTED;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  .bytes= requirements->trength 2;
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  chip *
hip>ecc.java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 _page_on_die_ecc;
  chip->ecc.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
  -ecc.   java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 42
   chip
 ;
   if (!chip->ecc.read_page_raw)
   chip->ecc.read_page_raw = nand_read_page_raw;
   if (!  (ase)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
    chip->structjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
  }
 }

 return 0 =sizeof*java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 47

err_free_manuf_data
 kfree(micron-
 kfree(micron);

 return ret;
}

t nand_chip chip)
{
  * =java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 9

 kfree(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 kfree(micron);
}

static void     chip->ecc.engine_typeesize=2048)
   java.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 33
{
 /*
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *  java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
 theis 00 00.
 */
 ifret=java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
}

retret =-EINVAL;
.=java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 .cleanup  micron_nand_cleanup
 .fixup_onfi_param_page   }
};