1 files changed, 81 insertions, 81 deletions

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 754b6ed7ce14..de4500395300 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -3,7 +3,7 @@
  *
  * Author: Artem B. Bityuckiy <dedekind@oktetlabs.ru>, <dedekind@infradead.org>
  *
- * Copyright (C) 2004 Nokia Corporation 
+ * Copyright (C) 2004 Nokia Corporation
  *
  * Note: NS means "NAND Simulator".
  * Note: Input means input TO flash chip, output means output FROM chip.
@@ -126,7 +126,7 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 
 /* The largest possible page size */
 #define NS_LARGEST_PAGE_SIZE    2048
-        
+
 /* The prefix for simulator output */
 #define NS_OUTPUT_PREFIX "[nandsim]"
 
@@ -145,7 +145,7 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
         do { if (do_delays) udelay(us); } while(0)
 #define NS_MDELAY(us) \
         do { if (do_delays) mdelay(us); } while(0)
-        
+
 /* Is the nandsim structure initialized ? */
 #define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0)
 
@@ -153,12 +153,12 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 #define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0)))
 
 /* Operation failed completion status */
-#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns)) 
+#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns))
 
 /* Calculate the page offset in flash RAM image by (row, column) address */
 #define NS_RAW_OFFSET(ns) \
         (((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column)
-        
+
 /* Calculate the OOB offset in flash RAM image by (row, column) address */
 #define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz)
 
@@ -223,15 +223,15 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 
 /* Remove action bits ftom 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
  * (which is only valid for 512-byte pages).
  */
 #define NS_MAX_PREVSTATES 1
 
-/* 
+/*
  * The structure which describes all the internal simulator data.
  */
 struct nandsim {
@@ -242,7 +242,7 @@ struct nandsim {
         uint32_t options;       /* chip's characteristic bits */
         uint32_t state;         /* current chip state */
         uint32_t nxstate;       /* next expected state */
-        
+
         uint32_t *op;           /* current operation, NULL operations isn't known yet  */
         uint32_t pstates[NS_MAX_PREVSTATES]; /* previous states */
         uint16_t npstates;      /* number of previous states saved */
@@ -413,7 +413,7 @@ init_nandsim(struct mtd_info *mtd)
                         ns->geom.secaddrbytes = 3;
                 }
         }
-        
+
         /* Detect how many ID bytes the NAND chip outputs */
         for (i = 0; nand_flash_ids[i].name != NULL; i++) {
                 if (second_id_byte != nand_flash_ids[i].id)
@@ -444,7 +444,7 @@ init_nandsim(struct mtd_info *mtd)
 #ifdef CONFIG_NS_ABS_POS
         ns->mem.byte = ioremap(CONFIG_NS_ABS_POS, ns->geom.totszoob);
         if (!ns->mem.byte) {
-                NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n", 
+                NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n",
                         (void *)CONFIG_NS_ABS_POS);
                 return -ENOMEM;
         }
@@ -567,7 +567,7 @@ static int
 check_command(int cmd)
 {
         switch (cmd) {
-                
+
         case NAND_CMD_READ0:
         case NAND_CMD_READSTART:
         case NAND_CMD_PAGEPROG:
@@ -580,7 +580,7 @@ check_command(int cmd)
         case NAND_CMD_RESET:
         case NAND_CMD_READ1:
                 return 0;
-                
+
         case NAND_CMD_STATUS_MULTI:
         default:
                 return 1;
@@ -631,7 +631,7 @@ static inline void
 accept_addr_byte(struct nandsim *ns, u_char bt)
 {
         uint byte = (uint)bt;
-        
+
         if (ns->regs.count < (ns->geom.pgaddrbytes - ns->geom.secaddrbytes))
                 ns->regs.column |= (byte << 8 * ns->regs.count);
         else {
@@ -642,11 +642,11 @@ accept_addr_byte(struct nandsim *ns, u_char bt)
 
         return;
 }
-                
+
 /*
  * Switch to STATE_READY state.
  */
-static inline void 
+static inline void
 switch_to_ready_state(struct nandsim *ns, u_char status)
 {
         NS_DBG("switch_to_ready_state: switch to %s state\n", get_state_name(STATE_READY));
@@ -675,7 +675,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  *      (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.
- * 
+ *
  * Thus, the function tries to find operation containing the following
  * states (if the 'flag' parameter is 0):
  *    ns->pstates[0], ... ns->pstates[ns->npstates], ns->state
@@ -683,7 +683,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  * If (one and only one) matching operation is found, it is accepted (
  * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is
  * zeroed).
- * 
+ *
  * If there are several maches, the current state is pushed to the
  * ns->pstates.
  *
@@ -692,7 +692,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  * In such situation the function is called with 'flag' != 0, and the
  * 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
  * none. There can't be ambiguity in that case.
  *
@@ -711,15 +711,15 @@ find_operation(struct nandsim *ns, uint32_t flag)
 {
         int opsfound = 0;
         int i, j, idx = 0;
-        
+
         for (i = 0; i < NS_OPER_NUM; i++) {
 
                 int found = 1;
-        
+
                 if (!(ns->options & ops[i].reqopts))
                         /* Ignore operations we can't perform */
                         continue;
-                        
+
                 if (flag) {
                         if (!(ops[i].states[ns->npstates] & STATE_ADDR_MASK))
                                 continue;
@@ -728,7 +728,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
                                 continue;
                 }
 
-                for (j = 0; j < ns->npstates; j++) 
+                for (j = 0; j < ns->npstates; j++)
                         if (NS_STATE(ops[i].states[j]) != NS_STATE(ns->pstates[j])
                                 && (ns->options & ops[idx].reqopts)) {
                                 found = 0;
@@ -745,7 +745,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
                 /* Exact match */
                 ns->op = &ops[idx].states[0];
                 if (flag) {
-                        /* 
+                        /*
                          * In this case the find_operation function was
                          * called when address has just began input. But it isn't
                          * yet fully input and the current state must
@@ -763,7 +763,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
                                 idx, get_state_name(ns->state), get_state_name(ns->nxstate));
                 return 0;
         }
-        
+
         if (opsfound == 0) {
                 /* Nothing was found. Try to ignore previous commands (if any) and search again */
                 if (ns->npstates != 0) {
@@ -777,13 +777,13 @@ find_operation(struct nandsim *ns, uint32_t flag)
                 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
                 return -2;
         }
-        
+
         if (flag) {
                 /* This shouldn't happen */
                 NS_DBG("find_operation: BUG, operation must be known if address is input\n");
                 return -2;
         }
-        
+
         NS_DBG("find_operation: there is still ambiguity\n");
 
         ns->pstates[ns->npstates++] = ns->state;
@@ -803,7 +803,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
         int busdiv = ns->busw == 8 ? 1 : 2;
 
         action &= ACTION_MASK;
-        
+
         /* Check that page address input is correct */
         if (action != ACTION_SECERASE && ns->regs.row >= ns->geom.pgnum) {
                 NS_WARN("do_state_action: wrong page number (%#x)\n", ns->regs.row);
@@ -827,14 +827,14 @@ do_state_action(struct nandsim *ns, uint32_t action)
 
                 NS_DBG("do_state_action: (ACTION_CPY:) copy %d bytes to int buf, raw offset %d\n",
                         num, NS_RAW_OFFSET(ns) + ns->regs.off);
-                
+
                 if (ns->regs.off == 0)
                         NS_LOG("read page %d\n", ns->regs.row);
                 else if (ns->regs.off < ns->geom.pgsz)
                         NS_LOG("read page %d (second half)\n", ns->regs.row);
                 else
                         NS_LOG("read OOB of page %d\n", ns->regs.row);
-                
+
                 NS_UDELAY(access_delay);
                 NS_UDELAY(input_cycle * ns->geom.pgsz / 1000 / busdiv);
 
@@ -844,30 +844,30 @@ do_state_action(struct nandsim *ns, uint32_t action)
                 /*
                  * Erase sector.
                  */
-                
+
                 if (ns->lines.wp) {
                         NS_ERR("do_state_action: device is write-protected, ignore sector erase\n");
                         return -1;
                 }
-                
+
                 if (ns->regs.row >= ns->geom.pgnum - ns->geom.pgsec
                         || (ns->regs.row & ~(ns->geom.secsz - 1))) {
                         NS_ERR("do_state_action: wrong sector address (%#x)\n", ns->regs.row);
                         return -1;
                 }
-                
+
                 ns->regs.row = (ns->regs.row <<
                                 8 * (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) | ns->regs.column;
                 ns->regs.column = 0;
-                
+
                 NS_DBG("do_state_action: erase sector at address %#x, off = %d\n",
                                 ns->regs.row, NS_RAW_OFFSET(ns));
                 NS_LOG("erase sector %d\n", ns->regs.row >> (ns->geom.secshift - ns->geom.pgshift));
 
                 memset(ns->mem.byte + NS_RAW_OFFSET(ns), 0xFF, ns->geom.secszoob);
-                
+
                 NS_MDELAY(erase_delay);
-                
+
                 break;
 
         case ACTION_PRGPAGE:
@@ -893,12 +893,12 @@ do_state_action(struct nandsim *ns, uint32_t action)
                 NS_DBG("do_state_action: copy %d bytes from int buf to (%#x, %#x), raw off = %d\n",
                         num, ns->regs.row, ns->regs.column, NS_RAW_OFFSET(ns) + ns->regs.off);
                 NS_LOG("programm page %d\n", ns->regs.row);
-                
+
                 NS_UDELAY(programm_delay);
                 NS_UDELAY(output_cycle * ns->geom.pgsz / 1000 / busdiv);
-                
+
                 break;
-        
+
         case ACTION_ZEROOFF:
                 NS_DBG("do_state_action: set internal offset to 0\n");
                 ns->regs.off = 0;
@@ -918,7 +918,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
                 NS_DBG("do_state_action: set internal offset to %d\n", ns->geom.pgsz);
                 ns->regs.off = ns->geom.pgsz;
                 break;
-                
+
         default:
                 NS_DBG("do_state_action: BUG! unknown action\n");
         }
@@ -937,7 +937,7 @@ switch_state(struct nandsim *ns)
                  * The current operation have already been identified.
                  * Just follow the states chain.
                  */
-                
+
                 ns->stateidx += 1;
                 ns->state = ns->nxstate;
                 ns->nxstate = ns->op[ns->stateidx + 1];
@@ -951,14 +951,14 @@ switch_state(struct nandsim *ns)
                         switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
                         return;
                 }
-                
+
         } else {
                 /*
                  * We don't yet know which operation we perform.
                  * Try to identify it.
                  */
 
-                /*  
+                /*
                  *  The only event causing the switch_state function to
                  *  be called with yet unknown operation is new command.
                  */
@@ -987,7 +987,7 @@ switch_state(struct nandsim *ns)
                  */
 
                 u_char status = NS_STATUS_OK(ns);
-                
+
                 /* In case of data states, see if all bytes were input/output */
                 if ((ns->state & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK))
                         && ns->regs.count != ns->regs.num) {
@@ -995,17 +995,17 @@ switch_state(struct nandsim *ns)
                                         ns->regs.num - ns->regs.count);
                         status = NS_STATUS_FAILED(ns);
                 }
-                                
+
                 NS_DBG("switch_state: operation complete, switch to STATE_READY state\n");
 
                 switch_to_ready_state(ns, status);
 
                 return;
         } else if (ns->nxstate & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) {
-                /* 
+                /*
                  * If the next state is data input/output, switch to it now
                  */
-                
+
                 ns->state      = ns->nxstate;
                 ns->nxstate    = ns->op[++ns->stateidx + 1];
                 ns->regs.num   = ns->regs.count = 0;
@@ -1023,16 +1023,16 @@ switch_state(struct nandsim *ns)
                         case STATE_DATAOUT:
                                 ns->regs.num = ns->geom.pgszoob - ns->regs.off - ns->regs.column;
                                 break;
-                                
+
                         case STATE_DATAOUT_ID:
                                 ns->regs.num = ns->geom.idbytes;
                                 break;
-                                
+
                         case STATE_DATAOUT_STATUS:
                         case STATE_DATAOUT_STATUS_M:
                                 ns->regs.count = ns->regs.num = 0;
                                 break;
-                                
+
                         default:
                                 NS_ERR("switch_state: BUG! unknown data state\n");
                 }
@@ -1044,16 +1044,16 @@ switch_state(struct nandsim *ns)
                  */
 
                 ns->regs.count = 0;
-                
+
                 switch (NS_STATE(ns->nxstate)) {
                         case STATE_ADDR_PAGE:
                                 ns->regs.num = ns->geom.pgaddrbytes;
-                
+
                                 break;
                         case STATE_ADDR_SEC:
                                 ns->regs.num = ns->geom.secaddrbytes;
                                 break;
-        
+
                         case STATE_ADDR_ZERO:
                                 ns->regs.num = 1;
                                 break;
@@ -1062,7 +1062,7 @@ switch_state(struct nandsim *ns)
                                 NS_ERR("switch_state: BUG! unknown address state\n");
                 }
         } else {
-                /* 
+                /*
                  * Just reset internal counters.
                  */
 
@@ -1184,7 +1184,7 @@ ns_nand_read_byte(struct mtd_info *mtd)
                 default:
                         BUG();
         }
-        
+
         if (ns->regs.count == ns->regs.num) {
                 NS_DBG("read_byte: all bytes were read\n");
 
@@ -1201,9 +1201,9 @@ ns_nand_read_byte(struct mtd_info *mtd)
                 }
                 else if (NS_STATE(ns->nxstate) == STATE_READY)
                         switch_state(ns);
-                
+
         }
-        
+
         return outb;
 }
 
@@ -1211,7 +1211,7 @@ static void
 ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
-        
+
         /* Sanity and correctness checks */
         if (!ns->lines.ce) {
                 NS_ERR("write_byte: chip is disabled, ignore write\n");
@@ -1221,7 +1221,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
                 NS_ERR("write_byte: ALE and CLE pins are high simultaneously, ignore write\n");
                 return;
         }
-                        
+
         if (ns->lines.cle == 1) {
                 /*
                  * The byte written is a command.
@@ -1233,7 +1233,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
                         return;
                 }
 
-                /* 
+                /*
                  * Chip might still be in STATE_DATAOUT
                  * (if OPT_AUTOINCR feature is supported), STATE_DATAOUT_STATUS or
                  * STATE_DATAOUT_STATUS_M state. If so, switch state.
@@ -1254,13 +1254,13 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
                                 "ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
                         switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
                 }
-                
+
                 /* Check that the command byte is correct */
                 if (check_command(byte)) {
                         NS_ERR("write_byte: unknown command %#x\n", (uint)byte);
                         return;
                 }
-                
+
                 NS_DBG("command byte corresponding to %s state accepted\n",
                         get_state_name(get_state_by_command(byte)));
                 ns->regs.command = byte;
@@ -1277,12 +1277,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 
                         if (find_operation(ns, 1) < 0)
                                 return;
-                        
+
                         if ((ns->state & ACTION_MASK) && do_state_action(ns, ns->state) < 0) {
                                 switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
                                 return;
                         }
-                                
+
                         ns->regs.count = 0;
                         switch (NS_STATE(ns->nxstate)) {
                                 case STATE_ADDR_PAGE:
@@ -1306,7 +1306,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
                         switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
                         return;
                 }
-                
+
                 /* Check if this is expected byte */
                 if (ns->regs.count == ns->regs.num) {
                         NS_ERR("write_byte: no more address bytes expected\n");
@@ -1325,12 +1325,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
                         NS_DBG("address (%#x, %#x) is accepted\n", ns->regs.row, ns->regs.column);
                         switch_state(ns);
                 }
-                
+
         } else {
                 /*
                  * The byte written is an input data.
                  */
-                
+
                 /* Check that chip is expecting data input */
                 if (!(ns->state & STATE_DATAIN_MASK)) {
                         NS_ERR("write_byte: data input (%#x) isn't expected, state is %s, "
@@ -1372,7 +1372,7 @@ ns_nand_read_word(struct mtd_info *mtd)
         struct nand_chip *chip = (struct nand_chip *)mtd->priv;
 
         NS_DBG("read_word\n");
-        
+
         return chip->read_byte(mtd) | (chip->read_byte(mtd) << 8);
 }
 
@@ -1380,14 +1380,14 @@ static void
 ns_nand_write_word(struct mtd_info *mtd, uint16_t word)
 {
         struct nand_chip *chip = (struct nand_chip *)mtd->priv;
-        
+
         NS_DBG("write_word\n");
-        
+
         chip->write_byte(mtd, word & 0xFF);
         chip->write_byte(mtd, word >> 8);
 }
 
-static void 
+static void
 ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1409,13 +1409,13 @@ ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
         memcpy(ns->buf.byte + ns->regs.count, buf, len);
         ns->regs.count += len;
-        
+
         if (ns->regs.count == ns->regs.num) {
                 NS_DBG("write_buf: %d bytes were written\n", ns->regs.count);
         }
 }
 
-static void 
+static void
 ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1453,7 +1453,7 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
         memcpy(buf, ns->buf.byte + ns->regs.count, len);
         ns->regs.count += len;
-        
+
         if (ns->regs.count == ns->regs.num) {
                 if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) {
                         ns->regs.count = 0;
@@ -1465,11 +1465,11 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
                 else if (NS_STATE(ns->nxstate) == STATE_READY)
                         switch_state(ns);
         }
-        
+
         return;
 }
 
-static int 
+static int
 ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
         ns_nand_read_buf(mtd, (u_char *)&ns_verify_buf[0], len);
@@ -1496,7 +1496,7 @@ int __init ns_init_module(void)
                 NS_ERR("wrong bus width (%d), use only 8 or 16\n", bus_width);
                 return -EINVAL;
         }
-        
+
         /* Allocate and initialize mtd_info, nand_chip and nandsim structures */
         nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
                                 + sizeof(struct nandsim), GFP_KERNEL);
@@ -1509,7 +1509,7 @@ int __init ns_init_module(void)
         chip        = (struct nand_chip *)(nsmtd + 1);
         nsmtd->priv = (void *)chip;
         nand        = (struct nandsim *)(chip + 1);
-        chip->priv  = (void *)nand;     
+        chip->priv  = (void *)nand;
 
         /*
          * Register simulator's callbacks.
@@ -1526,9 +1526,9 @@ int __init ns_init_module(void)
         chip->eccmode    = NAND_ECC_SOFT;
         chip->options   |= NAND_SKIP_BBTSCAN;
 
-        /* 
+        /*
          * Perform minimum nandsim structure initialization to handle
-         * the initial ID read command correctly 
+         * the initial ID read command correctly
          */
         if (third_id_byte != 0xFF || fourth_id_byte != 0xFF)
                 nand->geom.idbytes = 4;
@@ -1557,7 +1557,7 @@ int __init ns_init_module(void)
                 NS_ERR("scan_bbt: can't initialize the nandsim structure\n");
                 goto error;
         }
-        
+
         if ((retval = nand_default_bbt(nsmtd)) != 0) {
                 free_nandsim(nand);
                 goto error;