diff options
Diffstat (limited to 'drivers/mtd/nand/diskonchip.c')
| -rw-r--r-- | drivers/mtd/nand/diskonchip.c | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index fdb5d4ad3d52..21d4e8f4b7af 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1,4 +1,4 @@ -/* +/* * drivers/mtd/nand/diskonchip.c * * (C) 2003 Red Hat, Inc. @@ -8,15 +8,15 @@ * Author: David Woodhouse <dwmw2@infradead.org> * Additional Diskonchip 2000 and Millennium support by Dan Brown <dan_brown@ieee.org> * Diskonchip Millennium Plus support by Kalev Lember <kalev@smartlink.ee> - * + * * Error correction code lifted from the old docecc code - * Author: Fabrice Bellard (fabrice.bellard@netgem.com) + * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de> - * + * * Interface to generic NAND code for M-Systems DiskOnChip devices * - * $Id: diskonchip.c,v 1.54 2005/04/07 14:22:55 dbrown Exp $ + * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $ */ #include <linux/kernel.h> @@ -42,16 +42,16 @@ static unsigned long __initdata doc_locations[] = { #if defined (__alpha__) || defined(__i386__) || defined(__x86_64__) #ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH - 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000, + 0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000, 0xfffd0000, 0xfffd2000, 0xfffd4000, 0xfffd6000, - 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000, - 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000, + 0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000, + 0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000, 0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000, #else /* CONFIG_MTD_DOCPROBE_HIGH */ - 0xc8000, 0xca000, 0xcc000, 0xce000, + 0xc8000, 0xca000, 0xcc000, 0xce000, 0xd0000, 0xd2000, 0xd4000, 0xd6000, - 0xd8000, 0xda000, 0xdc000, 0xde000, - 0xe0000, 0xe2000, 0xe4000, 0xe6000, + 0xd8000, 0xda000, 0xdc000, 0xde000, + 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ #elif defined(__PPC__) @@ -138,7 +138,7 @@ MODULE_PARM_DESC(doc_config_location, "Physical memory address at which to probe /* the Reed Solomon control structure */ static struct rs_control *rs_decoder; -/* +/* * The HW decoder in the DoC ASIC's provides us a error syndrome, * which we must convert to a standard syndrom usable by the generic * Reed-Solomon library code. @@ -163,8 +163,8 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) /* Initialize the syndrom buffer */ for (i = 0; i < NROOTS; i++) s[i] = ds[0]; - /* - * Evaluate + /* + * Evaluate * s[i] = ds[3]x^3 + ds[2]x^2 + ds[1]x^1 + ds[0] * where x = alpha^(FCR + i) */ @@ -188,7 +188,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) if (nerr < 0) return nerr; - /* + /* * Correct the errors. The bitpositions are a bit of magic, * but they are given by the design of the de/encoder circuit * in the DoC ASIC's. @@ -205,7 +205,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) can be modified since pos is even */ index = (pos >> 3) ^ 1; bitpos = pos & 7; - if ((index >= 0 && index < SECTOR_SIZE) || + if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) { val = (uint8_t) (errval[i] >> (2 + bitpos)); parity ^= val; @@ -216,7 +216,7 @@ static int doc_ecc_decode (struct rs_control *rs, uint8_t *data, uint8_t *ecc) bitpos = (bitpos + 10) & 7; if (bitpos == 0) bitpos = 8; - if ((index >= 0 && index < SECTOR_SIZE) || + if ((index >= 0 && index < SECTOR_SIZE) || index == (SECTOR_SIZE + 1)) { val = (uint8_t)(errval[i] << (8 - bitpos)); parity ^= val; @@ -233,7 +233,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles) { volatile char dummy; int i; - + for (i = 0; i < cycles; i++) { if (DoC_is_Millennium(doc)) dummy = ReadDOC(doc->virtadr, NOP); @@ -242,7 +242,7 @@ static void DoC_Delay(struct doc_priv *doc, unsigned short cycles) else dummy = ReadDOC(doc->virtadr, DOCStatus); } - + } #define CDSN_CTRL_FR_B_MASK (CDSN_CTRL_FR_B0 | CDSN_CTRL_FR_B1) @@ -327,7 +327,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd) return ret; } -static void doc2000_writebuf(struct mtd_info *mtd, +static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -343,7 +343,7 @@ static void doc2000_writebuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static void doc2000_readbuf(struct mtd_info *mtd, +static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -358,7 +358,7 @@ static void doc2000_readbuf(struct mtd_info *mtd, } } -static void doc2000_readbuf_dword(struct mtd_info *mtd, +static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -379,7 +379,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, } } -static int doc2000_verifybuf(struct mtd_info *mtd, +static int doc2000_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -406,12 +406,12 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) doc200x_hwcontrol(mtd, NAND_CTL_SETALE); this->write_byte(mtd, 0); doc200x_hwcontrol(mtd, NAND_CTL_CLRALE); - + /* We cant' use dev_ready here, but at least we wait for the - * command to complete + * command to complete */ udelay(50); - + ret = this->read_byte(mtd) << 8; ret |= this->read_byte(mtd); @@ -438,7 +438,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) this->read_buf = &doc2000_readbuf_dword; } } - + return ret; } @@ -469,7 +469,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this, int state) struct doc_priv *doc = this->priv; int status; - + DoC_WaitReady(doc); this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); DoC_WaitReady(doc); @@ -503,7 +503,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd) return ReadDOC(docptr, LastDataRead); } -static void doc2001_writebuf(struct mtd_info *mtd, +static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -517,7 +517,7 @@ static void doc2001_writebuf(struct mtd_info *mtd, WriteDOC(0x00, docptr, WritePipeTerm); } -static void doc2001_readbuf(struct mtd_info *mtd, +static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -535,7 +535,7 @@ static void doc2001_readbuf(struct mtd_info *mtd, buf[i] = ReadDOC(docptr, LastDataRead); } -static int doc2001_verifybuf(struct mtd_info *mtd, +static int doc2001_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -570,7 +570,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd) return ret; } -static void doc2001plus_writebuf(struct mtd_info *mtd, +static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -587,7 +587,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static void doc2001plus_readbuf(struct mtd_info *mtd, +static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -617,7 +617,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, if (debug) printk("\n"); } -static int doc2001plus_verifybuf(struct mtd_info *mtd, +static int doc2001plus_verifybuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd->priv; @@ -797,7 +797,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col WriteDOC(0, docptr, Mplus_FlashControl); } - /* + /* * program and erase have their own busy handlers * status and sequential in needs no delay */ @@ -822,7 +822,7 @@ static void doc2001plus_command (struct mtd_info *mtd, unsigned command, int col /* This applies to read commands */ default: - /* + /* * If we don't have access to the busy pin, we apply the given * command delay */ @@ -945,7 +945,7 @@ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, for (i = 0; i < 6; i++) { if (DoC_is_MillenniumPlus(doc)) ecc_code[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i); - else + else ecc_code[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i); if (ecc_code[i] != empty_write_ecc[i]) emptymatch = 0; @@ -982,7 +982,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ void __iomem *docptr = doc->virtadr; volatile u_char dummy; int emptymatch = 1; - + /* flush the pipeline */ if (DoC_is_2000(doc)) { dummy = ReadDOC(docptr, 2k_ECCStatus); @@ -997,7 +997,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ dummy = ReadDOC(docptr, ECCConf); dummy = ReadDOC(docptr, ECCConf); } - + /* Error occured ? */ if (dummy & 0x80) { for (i = 0; i < 6; i++) { @@ -1035,7 +1035,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ if (!emptymatch) ret = doc_ecc_decode (rs_decoder, dat, calc_ecc); if (ret > 0) printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret); - } + } if (DoC_is_MillenniumPlus(doc)) WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); else @@ -1046,7 +1046,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ } return ret; } - + //u_char mydatabuf[528]; /* The strange out-of-order .oobfree list below is a (possibly unneeded) @@ -1065,7 +1065,7 @@ static struct nand_oobinfo doc200x_oobinfo = { .eccpos = {0, 1, 2, 3, 4, 5}, .oobfree = { {8, 8}, {6, 2} } }; - + /* Find the (I)NFTL Media Header, and optionally also the mirror media header. On sucessful return, buf will contain a copy of the media header for further processing. id is the string to scan for, and will presumably be @@ -1251,7 +1251,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits); mh->FormatFlags = le32_to_cpu(mh->FormatFlags); mh->PercentUsed = le32_to_cpu(mh->PercentUsed); - + printk(KERN_INFO " bootRecordID = %s\n" " NoOfBootImageBlocks = %d\n" " NoOfBinaryPartitions = %d\n" @@ -1468,7 +1468,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd) ReadDOC(doc->virtadr, ChipID); if (ReadDOC(doc->virtadr, ChipID) != DOC_ChipID_DocMil) { /* It's not a Millennium; it's one of the newer - DiskOnChip 2000 units with a similar ASIC. + DiskOnChip 2000 units with a similar ASIC. Treat it like a Millennium, except that it can have multiple chips. */ doc2000_count_chips(mtd); @@ -1530,20 +1530,20 @@ static inline int __init doc_probe(unsigned long physadr) * to the DOCControl register. So we store the current contents * of the DOCControl register's location, in case we later decide * that it's not a DiskOnChip, and want to put it back how we - * found it. + * found it. */ save_control = ReadDOC(virtadr, DOCControl); /* Reset the DiskOnChip ASIC */ - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl); - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_RESET, virtadr, DOCControl); /* Enable the DiskOnChip ASIC */ - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl); - WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, + WriteDOC(DOC_MODE_CLR_ERR | DOC_MODE_MDWREN | DOC_MODE_NORMAL, virtadr, DOCControl); ChipID = ReadDOC(virtadr, ChipID); @@ -1738,7 +1738,7 @@ static int __init init_nanddoc(void) int i, ret = 0; /* We could create the decoder on demand, if memory is a concern. - * This way we have it handy, if an error happens + * This way we have it handy, if an error happens * * Symbolsize is 10 (bits) * Primitve polynomial is x^10+x^3+1 |