forked from luck/tmp_suning_uos_patched
mtd: spelling, capitalization, uniformity
Therefor -> Therefore [Intern], [Internal] -> [INTERN] [REPLACABLE] -> [REPLACEABLE] syndrom, syndom -> syndrome ecc -> ECC buswith -> buswidth endianess -> endianness dont -> don't occures -> occurs independend -> independent wihin -> within erease -> erase blockes -> blocks ... Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Brian Norris
Artem Bityutskiy
parent
15c60a508a
commit
7854d3f749
@ -1914,7 +1914,7 @@ static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi)
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* (oh and incidentaly the jedec spec - 3.5.3.3) the reset
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* sequence is *supposed* to be 0xaa at 0x5555, 0x55 at
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* 0x2aaa, 0xF0 at 0x5555 this will not affect the AMD chips
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* as they will ignore the writes and dont care what address
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* as they will ignore the writes and don't care what address
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* the F0 is written to */
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if (cfi->addr_unlock1) {
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DEBUG( MTD_DEBUG_LEVEL3,
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@ -699,7 +699,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
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#ifdef ECC_DEBUG
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printk(KERN_ERR "DiskOnChip ECC Error: Read at %lx\n", (long)from);
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#endif
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/* Read the ECC syndrom through the DiskOnChip ECC
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/* Read the ECC syndrome through the DiskOnChip ECC
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logic. These syndrome will be all ZERO when there
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is no error */
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for (i = 0; i < 6; i++) {
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@ -464,7 +464,7 @@ static int doc_read (struct mtd_info *mtd, loff_t from, size_t len,
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#ifdef ECC_DEBUG
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printk("DiskOnChip ECC Error: Read at %lx\n", (long)from);
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#endif
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/* Read the ECC syndrom through the DiskOnChip ECC logic.
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/* Read the ECC syndrome through the DiskOnChip ECC logic.
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These syndrome will be all ZERO when there is no error */
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for (i = 0; i < 6; i++) {
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syndrome[i] = ReadDOC(docptr, ECCSyndrome0 + i);
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@ -655,7 +655,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
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#ifdef ECC_DEBUG
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printk("DiskOnChip ECC Error: Read at %lx\n", (long)from);
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#endif
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/* Read the ECC syndrom through the DiskOnChip ECC logic.
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/* Read the ECC syndrome through the DiskOnChip ECC logic.
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These syndrome will be all ZERO when there is no error */
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for (i = 0; i < 6; i++)
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syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i);
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@ -2,7 +2,7 @@
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* ECC algorithm for M-systems disk on chip. We use the excellent Reed
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* Solmon code of Phil Karn (karn@ka9q.ampr.org) available under the
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* GNU GPL License. The rest is simply to convert the disk on chip
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* syndrom into a standard syndom.
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* syndrome into a standard syndome.
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*
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* Author: Fabrice Bellard (fabrice.bellard@netgem.com)
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* Copyright (C) 2000 Netgem S.A.
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@ -233,9 +233,9 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
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default:
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ret = mtd->read(mtd, *ppos, len, &retlen, kbuf);
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}
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/* Nand returns -EBADMSG on ecc errors, but it returns
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/* Nand returns -EBADMSG on ECC errors, but it returns
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* the data. For our userspace tools it is important
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* to dump areas with ecc errors !
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* to dump areas with ECC errors!
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* For kernel internal usage it also might return -EUCLEAN
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* to signal the caller that a bitflip has occurred and has
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* been corrected by the ECC algorithm.
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@ -883,7 +883,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
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}
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#endif
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/* This ioctl is being deprecated - it truncates the ecc layout */
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/* This ioctl is being deprecated - it truncates the ECC layout */
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case ECCGETLAYOUT:
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{
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struct nand_ecclayout_user *usrlay;
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@ -48,7 +48,7 @@ static const struct mtd_partition partition_info[] = {
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* au_read_byte - read one byte from the chip
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* @mtd: MTD device structure
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*
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* read function for 8bit buswith
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* read function for 8bit buswidth
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*/
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static u_char au_read_byte(struct mtd_info *mtd)
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{
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@ -63,7 +63,7 @@ static u_char au_read_byte(struct mtd_info *mtd)
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* @mtd: MTD device structure
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* @byte: pointer to data byte to write
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*
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* write function for 8it buswith
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* write function for 8it buswidth
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*/
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static void au_write_byte(struct mtd_info *mtd, u_char byte)
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{
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@ -73,11 +73,10 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte)
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}
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/**
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* au_read_byte16 - read one byte endianess aware from the chip
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* au_read_byte16 - read one byte endianness aware from the chip
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* @mtd: MTD device structure
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*
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* read function for 16bit buswith with
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* endianess conversion
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* read function for 16bit buswidth with endianness conversion
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*/
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static u_char au_read_byte16(struct mtd_info *mtd)
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{
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@ -88,12 +87,11 @@ static u_char au_read_byte16(struct mtd_info *mtd)
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}
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/**
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* au_write_byte16 - write one byte endianess aware to the chip
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* au_write_byte16 - write one byte endianness aware to the chip
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* @mtd: MTD device structure
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* @byte: pointer to data byte to write
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*
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* write function for 16bit buswith with
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* endianess conversion
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* write function for 16bit buswidth with endianness conversion
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*/
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static void au_write_byte16(struct mtd_info *mtd, u_char byte)
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{
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@ -106,8 +104,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte)
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* au_read_word - read one word from the chip
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* @mtd: MTD device structure
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*
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* read function for 16bit buswith without
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* endianess conversion
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* read function for 16bit buswidth without endianness conversion
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*/
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static u16 au_read_word(struct mtd_info *mtd)
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{
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@ -123,7 +120,7 @@ static u16 au_read_word(struct mtd_info *mtd)
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* @buf: data buffer
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* @len: number of bytes to write
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*
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* write function for 8bit buswith
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* write function for 8bit buswidth
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*/
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static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
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{
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@ -142,7 +139,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
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* @buf: buffer to store date
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* @len: number of bytes to read
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*
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* read function for 8bit buswith
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* read function for 8bit buswidth
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*/
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static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
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{
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@ -161,7 +158,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
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* @buf: buffer containing the data to compare
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* @len: number of bytes to compare
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*
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* verify function for 8bit buswith
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* verify function for 8bit buswidth
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*/
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static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
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{
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@ -183,7 +180,7 @@ static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
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* @buf: data buffer
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* @len: number of bytes to write
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*
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* write function for 16bit buswith
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* write function for 16bit buswidth
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*/
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static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
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{
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@ -205,7 +202,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
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* @buf: buffer to store date
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* @len: number of bytes to read
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*
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* read function for 16bit buswith
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* read function for 16bit buswidth
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*/
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static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
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{
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@ -226,7 +223,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
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* @buf: buffer containing the data to compare
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* @len: number of bytes to compare
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*
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* verify function for 16bit buswith
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* verify function for 16bit buswidth
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*/
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static int au_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
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{
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@ -370,7 +370,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
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return 1;
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}
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/**
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* cafe_nand_read_page_syndrome - {REPLACABLE] hardware ecc syndrom based page read
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* cafe_nand_read_page_syndrome - [REPLACEABLE] hardware ecc syndrome based page read
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* @mtd: mtd info structure
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* @chip: nand chip info structure
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* @buf: buffer to store read data
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@ -132,7 +132,7 @@ static struct rs_control *rs_decoder;
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/*
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* The HW decoder in the DoC ASIC's provides us a error syndrome,
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* which we must convert to a standard syndrom usable by the generic
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* which we must convert to a standard syndrome usable by the generic
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* Reed-Solomon library code.
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*
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* Fabrice Bellard figured this out in the old docecc code. I added
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@ -153,7 +153,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
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ds[3] = ((ecc[3] & 0xc0) >> 6) | ((ecc[0] & 0xff) << 2);
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parity = ecc[1];
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/* Initialize the syndrom buffer */
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/* Initialize the syndrome buffer */
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for (i = 0; i < NROOTS; i++)
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s[i] = ds[0];
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/*
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@ -21,7 +21,7 @@
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* TODO:
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* Enable cached programming for 2k page size chips
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* Check, if mtd->ecctype should be set to MTD_ECC_HW
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* if we have HW ecc support.
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* if we have HW ECC support.
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* The AG-AND chips have nice features for speed improvement,
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* which are not supported yet. Read / program 4 pages in one go.
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* BBT table is not serialized, has to be fixed
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@ -159,7 +159,7 @@ static void nand_release_device(struct mtd_info *mtd)
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* nand_read_byte - [DEFAULT] read one byte from the chip
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* @mtd: MTD device structure
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*
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* Default read function for 8bit buswith.
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* Default read function for 8bit buswidth
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*/
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static uint8_t nand_read_byte(struct mtd_info *mtd)
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{
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@ -169,9 +169,11 @@ static uint8_t nand_read_byte(struct mtd_info *mtd)
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/**
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* nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
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* nand_read_byte16 - [DEFAULT] read one byte endianness aware from the chip
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* @mtd: MTD device structure
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*
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* Default read function for 16bit buswith with endianess conversion.
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* Default read function for 16bit buswidth with endianness conversion.
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*
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*/
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static uint8_t nand_read_byte16(struct mtd_info *mtd)
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{
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@ -183,7 +185,7 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd)
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* nand_read_word - [DEFAULT] read one word from the chip
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* @mtd: MTD device structure
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*
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* Default read function for 16bit buswith without endianess conversion.
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* Default read function for 16bit buswidth without endianness conversion.
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*/
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static u16 nand_read_word(struct mtd_info *mtd)
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{
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@ -220,7 +222,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
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* @buf: data buffer
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* @len: number of bytes to write
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*
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* Default write function for 8bit buswith.
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* Default write function for 8bit buswidth.
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*/
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static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
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{
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@ -237,7 +239,7 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
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* @buf: buffer to store date
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* @len: number of bytes to read
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*
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* Default read function for 8bit buswith.
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* Default read function for 8bit buswidth.
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*/
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static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
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{
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@ -254,7 +256,7 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
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* @buf: buffer containing the data to compare
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* @len: number of bytes to compare
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*
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* Default verify function for 8bit buswith.
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* Default verify function for 8bit buswidth.
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*/
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static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
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{
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@ -273,7 +275,7 @@ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
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* @buf: data buffer
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* @len: number of bytes to write
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*
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* Default write function for 16bit buswith.
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* Default write function for 16bit buswidth.
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*/
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static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
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{
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@ -293,7 +295,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
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* @buf: buffer to store date
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* @len: number of bytes to read
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*
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* Default read function for 16bit buswith.
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* Default read function for 16bit buswidth.
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*/
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static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
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{
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@ -312,7 +314,7 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
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* @buf: buffer containing the data to compare
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* @len: number of bytes to compare
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*
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* Default verify function for 16bit buswith.
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* Default verify function for 16bit buswidth.
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*/
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static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
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{
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@ -499,7 +501,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
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}
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}
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/* Wait for the ready pin, after a command. The timeout is catched later */
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/* Wait for the ready pin, after a command. The timeout is caught later. */
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void nand_wait_ready(struct mtd_info *mtd)
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{
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struct nand_chip *chip = mtd->priv;
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@ -510,7 +512,7 @@ void nand_wait_ready(struct mtd_info *mtd)
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return panic_nand_wait_ready(mtd, 400);
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led_trigger_event(nand_led_trigger, LED_FULL);
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/* Wait until command is processed or timeout occures */
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/* Wait until command is processed or timeout occurs */
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do {
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if (chip->dev_ready(mtd))
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break;
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@ -629,8 +631,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
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* @page_addr: the page address for this command, -1 if none
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*
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* Send command to NAND device. This is the version for the new large page
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* devices We dont have the separate regions as we have in the small page
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* devices. We must emulate NAND_CMD_READOOB to keep the code compatible.
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* devices. We don't have the separate regions as we have in the small page
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* devices. We must emulate NAND_CMD_READOOB to keep the code compatible.
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*/
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static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
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int column, int page_addr)
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@ -754,7 +756,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
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static void panic_nand_get_device(struct nand_chip *chip,
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struct mtd_info *mtd, int new_state)
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{
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/* Hardware controller shared among independend devices */
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/* Hardware controller shared among independent devices */
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chip->controller->active = chip;
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chip->state = new_state;
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}
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@ -1032,14 +1034,13 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
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EXPORT_SYMBOL(nand_lock);
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/**
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* nand_read_page_raw - [Intern] read raw page data without ecc
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* nand_read_page_raw - [INTERN] read raw page data without ecc
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* @mtd: mtd info structure
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* @chip: nand chip info structure
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* @buf: buffer to store read data
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* @page: page number to read
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*
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* Not for syndrome calculating ecc controllers, which use a special oob
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* layout.
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* Not for syndrome calculating ECC controllers, which use a special oob layout.
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*/
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static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
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uint8_t *buf, int page)
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@ -1050,7 +1051,7 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
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}
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/**
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* nand_read_page_raw_syndrome - [Intern] read raw page data without ecc
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* nand_read_page_raw_syndrome - [INTERN] read raw page data without ecc
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* @mtd: mtd info structure
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* @chip: nand chip info structure
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* @buf: buffer to store read data
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@ -1093,7 +1094,7 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
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}
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/**
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* nand_read_page_swecc - [REPLACABLE] software ecc based page read function
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* nand_read_page_swecc - [REPLACEABLE] software ECC based page read function
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* @mtd: mtd info structure
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* @chip: nand chip info structure
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* @buf: buffer to store read data
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@ -1134,7 +1135,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
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}
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/**
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* nand_read_subpage - [REPLACABLE] software ecc based sub-page read function
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* nand_read_subpage - [REPLACEABLE] software ECC based sub-page read function
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* @mtd: mtd info structure
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* @chip: nand chip info structure
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* @data_offs: offset of requested data within the page
|
||||
@ -1152,7 +1153,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1;
|
||||
int index = 0;
|
||||
|
||||
/* Column address wihin the page aligned to ECC size (256bytes) */
|
||||
/* Column address within the page aligned to ECC size (256bytes) */
|
||||
start_step = data_offs / chip->ecc.size;
|
||||
end_step = (data_offs + readlen - 1) / chip->ecc.size;
|
||||
num_steps = end_step - start_step + 1;
|
||||
@ -1175,7 +1176,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
|
||||
/*
|
||||
* The performance is faster if we position offsets according to
|
||||
* ecc.pos. Let's make sure that there are no gaps in ecc positions.
|
||||
* ecc.pos. Let's make sure that there are no gaps in ECC positions.
|
||||
*/
|
||||
for (i = 0; i < eccfrag_len - 1; i++) {
|
||||
if (eccpos[i + start_step * chip->ecc.bytes] + 1 !=
|
||||
@ -1189,7 +1190,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
|
||||
} else {
|
||||
/*
|
||||
* Send the command to read the particular ecc bytes take care
|
||||
* Send the command to read the particular ECC bytes take care
|
||||
* about buswidth alignment in read_buf.
|
||||
*/
|
||||
index = start_step * chip->ecc.bytes;
|
||||
@ -1224,14 +1225,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function
|
||||
* nand_read_page_hwecc - [REPLACEABLE] hardware ECC based page read function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: buffer to store read data
|
||||
* @page: page number to read
|
||||
*
|
||||
* Not for syndrome calculating ecc controllers which need a special oob
|
||||
* layout.
|
||||
* Not for syndrome calculating ECC controllers which need a special oob layout.
|
||||
*/
|
||||
static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
uint8_t *buf, int page)
|
||||
@ -1270,7 +1270,7 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_read_page_hwecc_oob_first - [REPLACABLE] hw ecc, read oob first
|
||||
* nand_read_page_hwecc_oob_first - [REPLACEABLE] hw ecc, read oob first
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: buffer to store read data
|
||||
@ -1318,7 +1318,7 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read
|
||||
* nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: buffer to store read data
|
||||
@ -1373,7 +1373,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_transfer_oob - [Internal] Transfer oob to client buffer
|
||||
* nand_transfer_oob - [INTERN] Transfer oob to client buffer
|
||||
* @chip: nand chip structure
|
||||
* @oob: oob destination address
|
||||
* @ops: oob ops structure
|
||||
@ -1421,7 +1421,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_do_read_ops - [Internal] Read data with ECC
|
||||
* nand_do_read_ops - [INTERN] Read data with ECC
|
||||
* @mtd: MTD device structure
|
||||
* @from: offset to read from
|
||||
* @ops: oob ops structure
|
||||
@ -1599,7 +1599,7 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_read_oob_std - [REPLACABLE] the most common OOB data read function
|
||||
* nand_read_oob_std - [REPLACEABLE] the most common OOB data read function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @page: page number to read
|
||||
@ -1617,7 +1617,7 @@ static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_read_oob_syndrome - [REPLACABLE] OOB data read function for HW ECC
|
||||
* nand_read_oob_syndrome - [REPLACEABLE] OOB data read function for HW ECC
|
||||
* with syndromes
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
@ -1656,7 +1656,7 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_write_oob_std - [REPLACABLE] the most common OOB data write function
|
||||
* nand_write_oob_std - [REPLACEABLE] the most common OOB data write function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @page: page number to write
|
||||
@ -1679,7 +1679,7 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_write_oob_syndrome - [REPLACABLE] OOB data write function for HW ECC
|
||||
* nand_write_oob_syndrome - [REPLACEABLE] OOB data write function for HW ECC
|
||||
* with syndrome - only for large page flash
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
@ -1738,7 +1738,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_do_read_oob - [Intern] NAND read out-of-band
|
||||
* nand_do_read_oob - [INTERN] NAND read out-of-band
|
||||
* @mtd: MTD device structure
|
||||
* @from: offset to read from
|
||||
* @ops: oob operations description structure
|
||||
@ -1878,13 +1878,12 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
|
||||
|
||||
|
||||
/**
|
||||
* nand_write_page_raw - [Intern] raw page write function
|
||||
* nand_write_page_raw - [INTERN] raw page write function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: data buffer
|
||||
*
|
||||
* Not for syndrome calculating ecc controllers, which use a special oob
|
||||
* layout.
|
||||
* Not for syndrome calculating ECC controllers, which use a special oob layout.
|
||||
*/
|
||||
static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
const uint8_t *buf)
|
||||
@ -1894,7 +1893,7 @@ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_write_page_raw_syndrome - [Intern] raw page write function
|
||||
* nand_write_page_raw_syndrome - [INTERN] raw page write function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: data buffer
|
||||
@ -1933,7 +1932,7 @@ static void nand_write_page_raw_syndrome(struct mtd_info *mtd,
|
||||
chip->write_buf(mtd, oob, size);
|
||||
}
|
||||
/**
|
||||
* nand_write_page_swecc - [REPLACABLE] software ecc based page write function
|
||||
* nand_write_page_swecc - [REPLACEABLE] software ECC based page write function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: data buffer
|
||||
@ -1948,7 +1947,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
const uint8_t *p = buf;
|
||||
uint32_t *eccpos = chip->ecc.layout->eccpos;
|
||||
|
||||
/* Software ecc calculation */
|
||||
/* Software ECC calculation */
|
||||
for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
|
||||
chip->ecc.calculate(mtd, p, &ecc_calc[i]);
|
||||
|
||||
@ -1959,7 +1958,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_write_page_hwecc - [REPLACABLE] hardware ecc based page write function
|
||||
* nand_write_page_hwecc - [REPLACEABLE] hardware ECC based page write function
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: data buffer
|
||||
@ -1987,7 +1986,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_write_page_syndrome - [REPLACABLE] hardware ecc syndrom based page write
|
||||
* nand_write_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page write
|
||||
* @mtd: mtd info structure
|
||||
* @chip: nand chip info structure
|
||||
* @buf: data buffer
|
||||
@ -2052,7 +2051,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
chip->ecc.write_page(mtd, chip, buf);
|
||||
|
||||
/*
|
||||
* Cached progamming disabled for now, Not sure if its worth the
|
||||
* Cached progamming disabled for now. Not sure if it's worth the
|
||||
* trouble. The speed gain is not very impressive. (2.3->2.6Mib/s).
|
||||
*/
|
||||
cached = 0;
|
||||
@ -2087,7 +2086,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
}
|
||||
|
||||
/**
|
||||
* nand_fill_oob - [Internal] Transfer client buffer to oob
|
||||
* nand_fill_oob - [INTERN] Transfer client buffer to oob
|
||||
* @mtd: MTD device structure
|
||||
* @oob: oob data buffer
|
||||
* @len: oob data write length
|
||||
@ -2145,7 +2144,7 @@ static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
|
||||
#define NOTALIGNED(x) ((x & (chip->subpagesize - 1)) != 0)
|
||||
|
||||
/**
|
||||
* nand_do_write_ops - [Internal] NAND write with ECC
|
||||
* nand_do_write_ops - [INTERN] NAND write with ECC
|
||||
* @mtd: MTD device structure
|
||||
* @to: offset to write to
|
||||
* @ops: oob operations description structure
|
||||
@ -2454,7 +2453,7 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
|
||||
}
|
||||
|
||||
/**
|
||||
* single_erease_cmd - [GENERIC] NAND standard block erase command function
|
||||
* single_erase_cmd - [GENERIC] NAND standard block erase command function
|
||||
* @mtd: MTD device structure
|
||||
* @page: the page address of the block which will be erased
|
||||
*
|
||||
@ -2469,7 +2468,7 @@ static void single_erase_cmd(struct mtd_info *mtd, int page)
|
||||
}
|
||||
|
||||
/**
|
||||
* multi_erease_cmd - [GENERIC] AND specific block erase command function
|
||||
* multi_erase_cmd - [GENERIC] AND specific block erase command function
|
||||
* @mtd: MTD device structure
|
||||
* @page: the page address of the block which will be erased
|
||||
*
|
||||
@ -2500,7 +2499,7 @@ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
|
||||
|
||||
#define BBT_PAGE_MASK 0xffffff3f
|
||||
/**
|
||||
* nand_erase_nand - [Internal] erase block(s)
|
||||
* nand_erase_nand - [INTERN] erase block(s)
|
||||
* @mtd: MTD device structure
|
||||
* @instr: erase instruction
|
||||
* @allowbbt: allow erasing the bbt area
|
||||
@ -2550,7 +2549,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
|
||||
* If BBT requires refresh, set the BBT page mask to see if the BBT
|
||||
* should be rewritten. Otherwise the mask is set to 0xffffffff which
|
||||
* can not be matched. This is also done when the bbt is actually
|
||||
* erased to avoid recusrsive updates.
|
||||
* erased to avoid recursive updates.
|
||||
*/
|
||||
if (chip->options & BBT_AUTO_REFRESH && !allowbbt)
|
||||
bbt_masked_page = chip->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
|
||||
@ -2824,7 +2823,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
|
||||
int i;
|
||||
int val;
|
||||
|
||||
/* Try ONFI for unknow chip or LP */
|
||||
/* Try ONFI for unknown chip or LP */
|
||||
chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1);
|
||||
if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' ||
|
||||
chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I')
|
||||
@ -3395,7 +3394,7 @@ int nand_scan_tail(struct mtd_info *mtd)
|
||||
*/
|
||||
chip->ecc.steps = mtd->writesize / chip->ecc.size;
|
||||
if (chip->ecc.steps * chip->ecc.size != mtd->writesize) {
|
||||
printk(KERN_WARNING "Invalid ecc parameters\n");
|
||||
printk(KERN_WARNING "Invalid ECC parameters\n");
|
||||
BUG();
|
||||
}
|
||||
chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
|
||||
|
||||
@ -149,7 +149,7 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
|
||||
* add_marker_len - compute the length of the marker in data area
|
||||
* @td: BBT descriptor used for computation
|
||||
*
|
||||
* The length will be 0 if the markeris located in OOB area.
|
||||
* The length will be 0 if the marker is located in OOB area.
|
||||
*/
|
||||
static u32 add_marker_len(struct nand_bbt_descr *td)
|
||||
{
|
||||
@ -170,7 +170,7 @@ static u32 add_marker_len(struct nand_bbt_descr *td)
|
||||
* @buf: temporary buffer
|
||||
* @page: the starting page
|
||||
* @num: the number of bbt descriptors to read
|
||||
* @td: the bbt describtion table
|
||||
* @td: the bbt describtion table
|
||||
* @offs: offset in the memory table
|
||||
*
|
||||
* Read the bad block table starting from page.
|
||||
@ -1241,7 +1241,7 @@ static struct nand_bbt_descr agand_flashbased = {
|
||||
.pattern = scan_agand_pattern
|
||||
};
|
||||
|
||||
/* Generic flash bbt decriptors */
|
||||
/* Generic flash bbt descriptors */
|
||||
static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
|
||||
static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
|
||||
|
||||
@ -1286,7 +1286,7 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = {
|
||||
};
|
||||
|
||||
/**
|
||||
* nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure
|
||||
* nand_create_default_bbt_descr - [INTERN] Creates a BBT descriptor structure
|
||||
* @this: NAND chip to create descriptor for
|
||||
*
|
||||
* This function allocates and initializes a nand_bbt_descr for BBM detection
|
||||
|
||||
@ -110,7 +110,7 @@ static const char bitsperbyte[256] = {
|
||||
|
||||
/*
|
||||
* addressbits is a lookup table to filter out the bits from the xor-ed
|
||||
* ecc data that identify the faulty location.
|
||||
* ECC data that identify the faulty location.
|
||||
* this is only used for repairing parity
|
||||
* see the comments in nand_correct_data for more details
|
||||
*/
|
||||
@ -153,7 +153,7 @@ static const char addressbits[256] = {
|
||||
* __nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256/512-byte
|
||||
* block
|
||||
* @buf: input buffer with raw data
|
||||
* @eccsize: data bytes per ecc step (256 or 512)
|
||||
* @eccsize: data bytes per ECC step (256 or 512)
|
||||
* @code: output buffer with ECC
|
||||
*/
|
||||
void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize,
|
||||
@ -348,7 +348,7 @@ void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize,
|
||||
rp17 = (par ^ rp16) & 0xff;
|
||||
|
||||
/*
|
||||
* Finally calculate the ecc bits.
|
||||
* Finally calculate the ECC bits.
|
||||
* Again here it might seem that there are performance optimisations
|
||||
* possible, but benchmarks showed that on the system this is developed
|
||||
* the code below is the fastest
|
||||
@ -436,7 +436,7 @@ EXPORT_SYMBOL(nand_calculate_ecc);
|
||||
* @buf: raw data read from the chip
|
||||
* @read_ecc: ECC from the chip
|
||||
* @calc_ecc: the ECC calculated from raw data
|
||||
* @eccsize: data bytes per ecc step (256 or 512)
|
||||
* @eccsize: data bytes per ECC step (256 or 512)
|
||||
*
|
||||
* Detect and correct a 1 bit error for eccsize byte block
|
||||
*/
|
||||
@ -505,7 +505,7 @@ int __nand_correct_data(unsigned char *buf,
|
||||
}
|
||||
/* count nr of bits; use table lookup, faster than calculating it */
|
||||
if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1)
|
||||
return 1; /* error in ecc data; no action needed */
|
||||
return 1; /* error in ECC data; no action needed */
|
||||
|
||||
printk(KERN_ERR "uncorrectable error : ");
|
||||
return -1;
|
||||
|
||||
@ -351,7 +351,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Read the syndrom pattern from the FPGA and correct the bitorder */
|
||||
/* Read the syndrome pattern from the FPGA and correct the bitorder */
|
||||
rs_ecc = (volatile unsigned short *)(rtc_from4_fio_base + RTC_FROM4_RS_ECC);
|
||||
for (i = 0; i < 8; i++) {
|
||||
ecc[i] = bitrev8(*rs_ecc);
|
||||
|
||||
@ -1015,7 +1015,7 @@ static void onenand_release_device(struct mtd_info *mtd)
|
||||
}
|
||||
|
||||
/**
|
||||
* onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
|
||||
* onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer
|
||||
* @param mtd MTD device structure
|
||||
* @param buf destination address
|
||||
* @param column oob offset to read from
|
||||
@ -1821,7 +1821,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
|
||||
}
|
||||
|
||||
/**
|
||||
* onenand_fill_auto_oob - [Internal] oob auto-placement transfer
|
||||
* onenand_fill_auto_oob - [INTERN] oob auto-placement transfer
|
||||
* @param mtd MTD device structure
|
||||
* @param oob_buf oob buffer
|
||||
* @param buf source address
|
||||
@ -2055,7 +2055,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
|
||||
|
||||
|
||||
/**
|
||||
* onenand_write_oob_nolock - [Internal] OneNAND write out-of-band
|
||||
* onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band
|
||||
* @param mtd MTD device structure
|
||||
* @param to offset to write to
|
||||
* @param len number of bytes to write
|
||||
@ -2281,7 +2281,7 @@ static int onenand_multiblock_erase_verify(struct mtd_info *mtd,
|
||||
}
|
||||
|
||||
/**
|
||||
* onenand_multiblock_erase - [Internal] erase block(s) using multiblock erase
|
||||
* onenand_multiblock_erase - [INTERN] erase block(s) using multiblock erase
|
||||
* @param mtd MTD device structure
|
||||
* @param instr erase instruction
|
||||
* @param region erase region
|
||||
@ -2397,7 +2397,7 @@ static int onenand_multiblock_erase(struct mtd_info *mtd,
|
||||
|
||||
|
||||
/**
|
||||
* onenand_block_by_block_erase - [Internal] erase block(s) using regular erase
|
||||
* onenand_block_by_block_erase - [INTERN] erase block(s) using regular erase
|
||||
* @param mtd MTD device structure
|
||||
* @param instr erase instruction
|
||||
* @param region erase region
|
||||
@ -2922,7 +2922,7 @@ static int onenand_otp_command(struct mtd_info *mtd, int cmd, loff_t addr,
|
||||
}
|
||||
|
||||
/**
|
||||
* onenand_otp_write_oob_nolock - [Internal] OneNAND write out-of-band, specific to OTP
|
||||
* onenand_otp_write_oob_nolock - [INTERN] OneNAND write out-of-band, specific to OTP
|
||||
* @param mtd MTD device structure
|
||||
* @param to offset to write to
|
||||
* @param len number of bytes to write
|
||||
|
||||
@ -138,7 +138,7 @@ static int sm_get_lba(uint8_t *lba)
|
||||
if ((lba[0] & 0xF8) != 0x10)
|
||||
return -2;
|
||||
|
||||
/* check parity - endianess doesn't matter */
|
||||
/* check parity - endianness doesn't matter */
|
||||
if (hweight16(*(uint16_t *)lba) & 1)
|
||||
return -2;
|
||||
|
||||
|
||||
@ -172,7 +172,7 @@ struct mtd_info {
|
||||
const char *name;
|
||||
int index;
|
||||
|
||||
/* ecc layout structure pointer - read only ! */
|
||||
/* ECC layout structure pointer - read only! */
|
||||
struct nand_ecclayout *ecclayout;
|
||||
|
||||
/* Data for variable erase regions. If numeraseregions is zero,
|
||||
|
||||
@ -42,10 +42,10 @@ extern void nand_release(struct mtd_info *mtd);
|
||||
/* Internal helper for board drivers which need to override command function */
|
||||
extern void nand_wait_ready(struct mtd_info *mtd);
|
||||
|
||||
/* locks all blockes present in the device */
|
||||
/* locks all blocks present in the device */
|
||||
extern int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
|
||||
|
||||
/* unlocks specified locked blockes */
|
||||
/* unlocks specified locked blocks */
|
||||
extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
|
||||
|
||||
/* The maximum number of NAND chips in an array */
|
||||
@ -150,7 +150,7 @@ typedef enum {
|
||||
#define NAND_ECC_READ 0
|
||||
/* Reset Hardware ECC for write */
|
||||
#define NAND_ECC_WRITE 1
|
||||
/* Enable Hardware ECC before syndrom is read back from flash */
|
||||
/* Enable Hardware ECC before syndrome is read back from flash */
|
||||
#define NAND_ECC_READSYN 2
|
||||
|
||||
/* Bit mask for flags passed to do_nand_read_ecc */
|
||||
@ -163,7 +163,7 @@ typedef enum {
|
||||
*/
|
||||
/* Chip can not auto increment pages */
|
||||
#define NAND_NO_AUTOINCR 0x00000001
|
||||
/* Buswitdh is 16 bit */
|
||||
/* Buswidth is 16 bit */
|
||||
#define NAND_BUSWIDTH_16 0x00000002
|
||||
/* Device supports partial programming without padding */
|
||||
#define NAND_NO_PADDING 0x00000004
|
||||
@ -319,26 +319,26 @@ struct nand_hw_control {
|
||||
};
|
||||
|
||||
/**
|
||||
* struct nand_ecc_ctrl - Control structure for ecc
|
||||
* @mode: ecc mode
|
||||
* @steps: number of ecc steps per page
|
||||
* @size: data bytes per ecc step
|
||||
* @bytes: ecc bytes per step
|
||||
* @total: total number of ecc bytes per page
|
||||
* @prepad: padding information for syndrome based ecc generators
|
||||
* @postpad: padding information for syndrome based ecc generators
|
||||
* struct nand_ecc_ctrl - Control structure for ECC
|
||||
* @mode: ECC mode
|
||||
* @steps: number of ECC steps per page
|
||||
* @size: data bytes per ECC step
|
||||
* @bytes: ECC bytes per step
|
||||
* @total: total number of ECC bytes per page
|
||||
* @prepad: padding information for syndrome based ECC generators
|
||||
* @postpad: padding information for syndrome based ECC generators
|
||||
* @layout: ECC layout control struct pointer
|
||||
* @priv: pointer to private ecc control data
|
||||
* @hwctl: function to control hardware ecc generator. Must only
|
||||
* @priv: pointer to private ECC control data
|
||||
* @hwctl: function to control hardware ECC generator. Must only
|
||||
* be provided if an hardware ECC is available
|
||||
* @calculate: function for ecc calculation or readback from ecc hardware
|
||||
* @correct: function for ecc correction, matching to ecc generator (sw/hw)
|
||||
* @calculate: function for ECC calculation or readback from ECC hardware
|
||||
* @correct: function for ECC correction, matching to ECC generator (sw/hw)
|
||||
* @read_page_raw: function to read a raw page without ECC
|
||||
* @write_page_raw: function to write a raw page without ECC
|
||||
* @read_page: function to read a page according to the ecc generator
|
||||
* @read_page: function to read a page according to the ECC generator
|
||||
* requirements.
|
||||
* @read_subpage: function to read parts of the page covered by ECC.
|
||||
* @write_page: function to write a page according to the ecc generator
|
||||
* @write_page: function to write a page according to the ECC generator
|
||||
* requirements.
|
||||
* @read_oob: function to read chip OOB data
|
||||
* @write_oob: function to write chip OOB data
|
||||
@ -376,8 +376,8 @@ struct nand_ecc_ctrl {
|
||||
|
||||
/**
|
||||
* struct nand_buffers - buffer structure for read/write
|
||||
* @ecccalc: buffer for calculated ecc
|
||||
* @ecccode: buffer for ecc read from flash
|
||||
* @ecccalc: buffer for calculated ECC
|
||||
* @ecccode: buffer for ECC read from flash
|
||||
* @databuf: buffer for data - dynamically sized
|
||||
*
|
||||
* Do not change the order of buffers. databuf and oobrbuf must be in
|
||||
@ -410,7 +410,7 @@ struct nand_buffers {
|
||||
* mtd->oobsize, mtd->writesize and so on.
|
||||
* @id_data contains the 8 bytes values of NAND_CMD_READID.
|
||||
* Return with the bus width.
|
||||
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing
|
||||
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accessing
|
||||
* device ready/busy line. If set to NULL no access to
|
||||
* ready/busy is available and the ready/busy information
|
||||
* is read from the chip status register.
|
||||
@ -418,7 +418,7 @@ struct nand_buffers {
|
||||
* commands to the chip.
|
||||
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on
|
||||
* ready.
|
||||
* @ecc: [BOARDSPECIFIC] ecc control ctructure
|
||||
* @ecc: [BOARDSPECIFIC] ECC control structure
|
||||
* @buffers: buffer structure for read/write
|
||||
* @hwcontrol: platform-specific hardware control structure
|
||||
* @ops: oob operation operands
|
||||
@ -455,7 +455,7 @@ struct nand_buffers {
|
||||
* non 0 if ONFI supported.
|
||||
* @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
|
||||
* supported, 0 otherwise.
|
||||
* @ecclayout: [REPLACEABLE] the default ecc placement scheme
|
||||
* @ecclayout: [REPLACEABLE] the default ECC placement scheme
|
||||
* @bbt: [INTERN] bad block table pointer
|
||||
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash
|
||||
* lookup.
|
||||
@ -463,7 +463,7 @@ struct nand_buffers {
|
||||
* @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial
|
||||
* bad block scan.
|
||||
* @controller: [REPLACEABLE] a pointer to a hardware controller
|
||||
* structure which is shared among multiple independend
|
||||
* structure which is shared among multiple independent
|
||||
* devices.
|
||||
* @priv: [OPTIONAL] pointer to private chip date
|
||||
* @errstat: [OPTIONAL] hardware specific function to perform
|
||||
@ -604,7 +604,7 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
|
||||
* @chip_delay: R/B delay value in us
|
||||
* @options: Option flags, e.g. 16bit buswidth
|
||||
* @bbt_options: BBT option flags, e.g. NAND_BBT_USE_FLASH
|
||||
* @ecclayout: ecc layout info structure
|
||||
* @ecclayout: ECC layout info structure
|
||||
* @part_probe_types: NULL-terminated array of probe types
|
||||
* @set_parts: platform specific function to set partitions
|
||||
* @priv: hardware controller specific settings
|
||||
|
||||
Loading…
Reference in New Issue
Block a user