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[MTD] Remove read/write _ecc variants

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MTD clients are agnostic of FLASH which needs ECC suppport.
Remove the functions and fixup the callers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2006-05-23 17:21:03 +02:00
parent 2528e8cdf3
commit 9223a456da
15 changed files with 209 additions and 404 deletions
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63
drivers/mtd/inftlcore.c
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@@ -36,6 +36,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/nftl.h>
#include <linux/mtd/inftl.h>
#include <linux/mtd/nand.h>
#include <asm/uaccess.h>
#include <asm/errno.h>
#include <asm/io.h>
@@ -79,14 +80,12 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
inftl->mbd.devnum = -1;
inftl->mbd.blksize = 512;
inftl->mbd.tr = tr;
memcpy(&inftl->oobinfo, &mtd->oobinfo, sizeof(struct nand_oobinfo));
inftl->oobinfo.useecc = MTD_NANDECC_PLACEONLY;
if (INFTL_mount(inftl) < 0) {
if (INFTL_mount(inftl) < 0) {
printk(KERN_WARNING "INFTL: could not mount device\n");
kfree(inftl);
return;
}
}
/* OK, it's a new one. Set up all the data structures. */
@@ -221,7 +220,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
* Scan to find the Erase Unit which holds the actual data for each
* 512-byte block within the Chain.
*/
silly = MAX_LOOPS;
silly = MAX_LOOPS;
while (thisEUN < inftl->nb_blocks) {
for (block = 0; block < inftl->EraseSize/SECTORSIZE; block ++) {
if ((BlockMap[block] != 0xffff) || BlockDeleted[block])
@@ -232,7 +231,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
(char *)&oob) < 0)
status = SECTOR_IGNORE;
else
status = oob.b.Status | oob.b.Status1;
status = oob.b.Status | oob.b.Status1;
switch(status) {
case SECTOR_FREE:
@@ -282,29 +281,30 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
continue;
}
/*
/*
* Copy only in non free block (free blocks can only
* happen in case of media errors or deleted blocks).
*/
if (BlockMap[block] == BLOCK_NIL)
continue;
if (BlockMap[block] == BLOCK_NIL)
continue;
ret = MTD_READ(inftl->mbd.mtd, (inftl->EraseSize *
ret = MTD_READ(inftl->mbd.mtd, (inftl->EraseSize *
BlockMap[block]) + (block * SECTORSIZE), SECTORSIZE,
&retlen, movebuf);
if (ret < 0) {
if (ret < 0) {
ret = MTD_READ(inftl->mbd.mtd, (inftl->EraseSize *
BlockMap[block]) + (block * SECTORSIZE),
SECTORSIZE, &retlen, movebuf);
if (ret != -EIO)
DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went "
"away on retry?\n");
}
memset(&oob, 0xff, sizeof(struct inftl_oob));
oob.b.Status = oob.b.Status1 = SECTOR_USED;
MTD_WRITEECC(inftl->mbd.mtd, (inftl->EraseSize * targetEUN) +
(block * SECTORSIZE), SECTORSIZE, &retlen,
movebuf, (char *)&oob, &inftl->oobinfo);
DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went "
"away on retry?\n");
}
memset(&oob, 0xff, sizeof(struct inftl_oob));
oob.b.Status = oob.b.Status1 = SECTOR_USED;
nand_write_raw(inftl->mbd.mtd, (inftl->EraseSize * targetEUN) +
(block * SECTORSIZE), SECTORSIZE, &retlen,
movebuf, (char *)&oob);
}
/*
@@ -329,17 +329,17 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
if (thisEUN == targetEUN)
break;
if (INFTL_formatblock(inftl, thisEUN) < 0) {
if (INFTL_formatblock(inftl, thisEUN) < 0) {
/*
* Could not erase : mark block as reserved.
*/
inftl->PUtable[thisEUN] = BLOCK_RESERVED;
} else {
} else {
/* Correctly erased : mark it as free */
inftl->PUtable[thisEUN] = BLOCK_FREE;
inftl->PUtable[prevEUN] = BLOCK_NIL;
inftl->numfreeEUNs++;
}
}
}
return targetEUN;
@@ -437,7 +437,7 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
blockofs, 8, &retlen, (char *)&bci);
status = bci.Status | bci.Status1;
status = bci.Status | bci.Status1;
DEBUG(MTD_DEBUG_LEVEL3, "INFTL: status of block %d in "
"EUN %d is %x\n", block , writeEUN, status);
@@ -670,12 +670,12 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
DEBUG(MTD_DEBUG_LEVEL3, "Deleting EUN %d from VUC %d\n",
thisEUN, thisVUC);
if (INFTL_formatblock(inftl, thisEUN) < 0) {
if (INFTL_formatblock(inftl, thisEUN) < 0) {
/*
* Could not erase : mark block as reserved.
*/
inftl->PUtable[thisEUN] = BLOCK_RESERVED;
} else {
} else {
/* Correctly erased : mark it as free */
inftl->PUtable[thisEUN] = BLOCK_FREE;
inftl->numfreeEUNs++;
@@ -784,9 +784,10 @@ static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
memset(&oob, 0xff, sizeof(struct inftl_oob));
oob.b.Status = oob.b.Status1 = SECTOR_USED;
MTD_WRITEECC(inftl->mbd.mtd, (writeEUN * inftl->EraseSize) +
blockofs, SECTORSIZE, &retlen, (char *)buffer,
(char *)&oob, &inftl->oobinfo);
nand_write_raw(inftl->mbd.mtd, (writeEUN * inftl->EraseSize) +
blockofs, SECTORSIZE, &retlen, (char *)buffer,
(char *)&oob);
/*
* need to write SECTOR_USED flags since they are not written
* in mtd_writeecc
@@ -804,9 +805,9 @@ static int inftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
struct INFTLrecord *inftl = (void *)mbd;
unsigned int thisEUN = inftl->VUtable[block / (inftl->EraseSize / SECTORSIZE)];
unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
unsigned int status;
unsigned int status;
int silly = MAX_LOOPS;
struct inftl_bci bci;
struct inftl_bci bci;
size_t retlen;
DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_readblock(inftl=%p,block=%ld,"
@@ -850,7 +851,7 @@ foundit:
/* The requested block is not on the media, return all 0x00 */
memset(buffer, 0, SECTORSIZE);
} else {
size_t retlen;
size_t retlen;
loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
if (MTD_READ(inftl->mbd.mtd, ptr, SECTORSIZE, &retlen,
buffer))