diff options
Diffstat (limited to 'drivers/mtd/nand/nandsim.c')
| -rw-r--r-- | drivers/mtd/nand/nandsim.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index a6a73aa..a5aa99f 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -210,12 +210,12 @@ MODULE_PARM_DESC(bbt, "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in d #define STATE_CMD_READ0 0x00000001 /* read data from the beginning of page */ #define STATE_CMD_READ1 0x00000002 /* read data from the second half of page */ #define STATE_CMD_READSTART 0x00000003 /* read data second command (large page devices) */ -#define STATE_CMD_PAGEPROG 0x00000004 /* start page programm */ +#define STATE_CMD_PAGEPROG 0x00000004 /* start page program */ #define STATE_CMD_READOOB 0x00000005 /* read OOB area */ #define STATE_CMD_ERASE1 0x00000006 /* sector erase first command */ #define STATE_CMD_STATUS 0x00000007 /* read status */ #define STATE_CMD_STATUS_M 0x00000008 /* read multi-plane status (isn't implemented) */ -#define STATE_CMD_SEQIN 0x00000009 /* sequential data imput */ +#define STATE_CMD_SEQIN 0x00000009 /* sequential data input */ #define STATE_CMD_READID 0x0000000A /* read ID */ #define STATE_CMD_ERASE2 0x0000000B /* sector erase second command */ #define STATE_CMD_RESET 0x0000000C /* reset */ @@ -230,7 +230,7 @@ MODULE_PARM_DESC(bbt, "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in d #define STATE_ADDR_ZERO 0x00000040 /* one byte zero address was accepted */ #define STATE_ADDR_MASK 0x00000070 /* address states mask */ -/* Durind data input/output the simulator is in these states */ +/* During data input/output the simulator is in these states */ #define STATE_DATAIN 0x00000100 /* waiting for data input */ #define STATE_DATAIN_MASK 0x00000100 /* data input states mask */ @@ -248,7 +248,7 @@ MODULE_PARM_DESC(bbt, "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in d /* Simulator's actions bit masks */ #define ACTION_CPY 0x00100000 /* copy page/OOB to the internal buffer */ -#define ACTION_PRGPAGE 0x00200000 /* programm the internal buffer to flash */ +#define ACTION_PRGPAGE 0x00200000 /* program the internal buffer to flash */ #define ACTION_SECERASE 0x00300000 /* erase sector */ #define ACTION_ZEROOFF 0x00400000 /* don't add any offset to address */ #define ACTION_HALFOFF 0x00500000 /* add to address half of page */ @@ -263,18 +263,18 @@ MODULE_PARM_DESC(bbt, "0 OOB, 1 BBT with marker in OOB, 2 BBT with marker in d #define OPT_PAGE512 0x00000002 /* 512-byte page chips */ #define OPT_PAGE2048 0x00000008 /* 2048-byte page chips */ #define OPT_SMARTMEDIA 0x00000010 /* SmartMedia technology chips */ -#define OPT_AUTOINCR 0x00000020 /* page number auto inctimentation is possible */ +#define OPT_AUTOINCR 0x00000020 /* page number auto incrementation is possible */ #define OPT_PAGE512_8BIT 0x00000040 /* 512-byte page chips with 8-bit bus width */ #define OPT_PAGE4096 0x00000080 /* 4096-byte page chips */ #define OPT_LARGEPAGE (OPT_PAGE2048 | OPT_PAGE4096) /* 2048 & 4096-byte page chips */ #define OPT_SMALLPAGE (OPT_PAGE256 | OPT_PAGE512) /* 256 and 512-byte page chips */ -/* Remove action bits ftom state */ +/* Remove action bits from state */ #define NS_STATE(x) ((x) & ~ACTION_MASK) /* * Maximum previous states which need to be saved. Currently saving is - * only needed for page programm operation with preceeded read command + * only needed for page program operation with preceded read command * (which is only valid for 512-byte pages). */ #define NS_MAX_PREVSTATES 1 @@ -380,16 +380,16 @@ static struct nandsim_operations { /* Read OOB */ {OPT_SMALLPAGE, {STATE_CMD_READOOB | ACTION_OOBOFF, STATE_ADDR_PAGE | ACTION_CPY, STATE_DATAOUT, STATE_READY}}, - /* Programm page starting from the beginning */ + /* Program page starting from the beginning */ {OPT_ANY, {STATE_CMD_SEQIN, STATE_ADDR_PAGE, STATE_DATAIN, STATE_CMD_PAGEPROG | ACTION_PRGPAGE, STATE_READY}}, - /* Programm page starting from the beginning */ + /* Program page starting from the beginning */ {OPT_SMALLPAGE, {STATE_CMD_READ0, STATE_CMD_SEQIN | ACTION_ZEROOFF, STATE_ADDR_PAGE, STATE_DATAIN, STATE_CMD_PAGEPROG | ACTION_PRGPAGE, STATE_READY}}, - /* Programm page starting from the second half */ + /* Program page starting from the second half */ {OPT_PAGE512, {STATE_CMD_READ1, STATE_CMD_SEQIN | ACTION_HALFOFF, STATE_ADDR_PAGE, STATE_DATAIN, STATE_CMD_PAGEPROG | ACTION_PRGPAGE, STATE_READY}}, - /* Programm OOB */ + /* Program OOB */ {OPT_SMALLPAGE, {STATE_CMD_READOOB, STATE_CMD_SEQIN | ACTION_OOBOFF, STATE_ADDR_PAGE, STATE_DATAIN, STATE_CMD_PAGEPROG | ACTION_PRGPAGE, STATE_READY}}, /* Erase sector */ @@ -470,7 +470,7 @@ static int alloc_device(struct nandsim *ns) err = -EINVAL; goto err_close; } - ns->pages_written = vmalloc(ns->geom.pgnum); + ns->pages_written = vzalloc(ns->geom.pgnum); if (!ns->pages_written) { NS_ERR("alloc_device: unable to allocate pages written array\n"); err = -ENOMEM; @@ -483,7 +483,6 @@ static int alloc_device(struct nandsim *ns) goto err_free; } ns->cfile = cfile; - memset(ns->pages_written, 0, ns->geom.pgnum); return 0; } @@ -1171,9 +1170,9 @@ static inline void switch_to_ready_state(struct nandsim *ns, u_char status) * of supported operations. * * Operation can be unknown because of the following. - * 1. New command was accepted and this is the firs call to find the + * 1. New command was accepted and this is the first call to find the * correspondent states chain. In this case ns->npstates = 0; - * 2. There is several operations which begin with the same command(s) + * 2. There are several operations which begin with the same command(s) * (for example program from the second half and read from the * second half operations both begin with the READ1 command). In this * case the ns->pstates[] array contains previous states. @@ -1186,7 +1185,7 @@ static inline void switch_to_ready_state(struct nandsim *ns, u_char status) * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is * zeroed). * - * If there are several maches, the current state is pushed to the + * If there are several matches, the current state is pushed to the * ns->pstates. * * The operation can be unknown only while commands are input to the chip. @@ -1195,10 +1194,10 @@ static inline void switch_to_ready_state(struct nandsim *ns, u_char status) * operation is searched using the following pattern: * ns->pstates[0], ... ns->pstates[ns->npstates], <address input> * - * It is supposed that this pattern must either match one operation on + * It is supposed that this pattern must either match one operation or * none. There can't be ambiguity in that case. * - * If no matches found, the functions does the following: + * If no matches found, the function does the following: * 1. if there are saved states present, try to ignore them and search * again only using the last command. If nothing was found, switch * to the STATE_READY state. @@ -1668,7 +1667,7 @@ static int do_state_action(struct nandsim *ns, uint32_t action) case ACTION_PRGPAGE: /* - * Programm page - move internal buffer data to the page. + * Program page - move internal buffer data to the page. */ if (ns->lines.wp) { @@ -1933,7 +1932,7 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd) NS_DBG("read_byte: all bytes were read\n"); /* - * The OPT_AUTOINCR allows to read next conseqitive pages without + * The OPT_AUTOINCR allows to read next consecutive pages without * new read operation cycle. */ if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) { |
