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[MTD] NAND: Honour autoplacement schemes supplied by the caller

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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2005-05-19 17:10:26 +01:00 committed by Thomas Gleixner
parent a69dde91e8
commit 90e260c84f
2 changed files with 10 additions and 3 deletions
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10
drivers/mtd/nand/nand_base.c
View file

@ -59,7 +59,7 @@
* The AG-AND chips have nice features for speed improvement, * The AG-AND chips have nice features for speed improvement,
* which are not supported yet. Read / program 4 pages in one go. * which are not supported yet. Read / program 4 pages in one go.
* *
* $Id: nand_base.c,v 1.142 2005/04/11 14:16:07 lavinen Exp $ * $Id: nand_base.c,v 1.143 2005/05/19 16:10:22 gleixner Exp $
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as * it under the terms of the GNU General Public License version 2 as
@ -1195,7 +1195,8 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
} }
/* get oob area, if we have no oob buffer from fs-driver */ /* get oob area, if we have no oob buffer from fs-driver */
if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE) if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE ||
oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
oob_data = &this->data_buf[end]; oob_data = &this->data_buf[end];
eccsteps = this->eccsteps; eccsteps = this->eccsteps;
@ -1284,6 +1285,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
/* without autoplace. Legacy mode used by YAFFS1 */ /* without autoplace. Legacy mode used by YAFFS1 */
switch(oobsel->useecc) { switch(oobsel->useecc) {
case MTD_NANDECC_AUTOPLACE: case MTD_NANDECC_AUTOPLACE:
case MTD_NANDECC_AUTOPL_USR:
/* Walk through the autoplace chunks */ /* Walk through the autoplace chunks */
for (i = 0; oobsel->oobfree[i][1]; i++) { for (i = 0; oobsel->oobfree[i][1]; i++) {
int from = oobsel->oobfree[i][0]; int from = oobsel->oobfree[i][0];
@ -1645,6 +1647,8 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
oobsel = this->autooob; oobsel = this->autooob;
autoplace = 1; autoplace = 1;
} }
if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
autoplace = 1;
/* Setup variables and oob buffer */ /* Setup variables and oob buffer */
totalpages = len >> this->page_shift; totalpages = len >> this->page_shift;
@ -1919,6 +1923,8 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
oobsel = this->autooob; oobsel = this->autooob;
autoplace = 1; autoplace = 1;
} }
if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
autoplace = 1;
/* Setup start page */ /* Setup start page */
page = (int) (to >> this->page_shift); page = (int) (to >> this->page_shift);

3
include/mtd/mtd-abi.h
View file

@ -1,5 +1,5 @@
/* /*
* $Id: mtd-abi.h,v 1.10 2005/02/09 09:17:42 pavlov Exp $ * $Id: mtd-abi.h,v 1.11 2005/05/19 16:08:58 gleixner Exp $
* *
* Portions of MTD ABI definition which are shared by kernel and user space * Portions of MTD ABI definition which are shared by kernel and user space
*/ */
@ -61,6 +61,7 @@ struct mtd_oob_buf {
#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode) #define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode)
#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme #define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read) #define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
#define MTD_NANDECC_AUTOPL_USR 4 // Use the given autoplacement scheme rather than using the default
/* OTP mode selection */ /* OTP mode selection */
#define MTD_OTP_OFF 0 #define MTD_OTP_OFF 0