vserver 1.9.5.x5

[linux-2.6.git] / drivers / mtd / devices / doc2000.c

diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index fefbf5e..5fc5328 100644 (file)
--- a/drivers/mtd/devices/doc2000.c
+++ b/drivers/mtd/devices/doc2000.c
@@ -4,7 +4,7 @@
  * (c) 1999 Machine Vision Holdings, Inc.
  * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
  *
- * $Id: doc2000.c,v 1.62 2004/08/09 14:04:02 dwmw2 Exp $
+ * $Id: doc2000.c,v 1.66 2005/01/05 18:05:12 dwmw2 Exp $
  */
 
 #include <linux/kernel.h>
@@ -89,7 +89,7 @@ static void DoC_Delay(struct DiskOnChip *doc, unsigned short cycles)
 /* DOC_WaitReady: Wait for RDY line to be asserted by the flash chip */
 static int _DoC_WaitReady(struct DiskOnChip *doc)
 {
-       unsigned long docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
        unsigned long timeo = jiffies + (HZ * 10);
 
        DEBUG(MTD_DEBUG_LEVEL3,
@@ -114,7 +114,8 @@ static int _DoC_WaitReady(struct DiskOnChip *doc)
 
 static inline int DoC_WaitReady(struct DiskOnChip *doc)
 {
-       unsigned long docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
+
        /* This is inline, to optimise the common case, where it's ready instantly */
        int ret = 0;
 
@@ -140,7 +141,7 @@ static inline int DoC_WaitReady(struct DiskOnChip *doc)
 static inline int DoC_Command(struct DiskOnChip *doc, unsigned char command,
                              unsigned char xtraflags)
 {
-       unsigned long docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
 
        if (DoC_is_2000(doc))
                xtraflags |= CDSN_CTRL_FLASH_IO;
@@ -172,10 +173,8 @@ static inline int DoC_Command(struct DiskOnChip *doc, unsigned char command,
 static int DoC_Address(struct DiskOnChip *doc, int numbytes, unsigned long ofs,
                       unsigned char xtraflags1, unsigned char xtraflags2)
 {
-       unsigned long docptr;
        int i;
-
-       docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
 
        if (DoC_is_2000(doc))
                xtraflags1 |= CDSN_CTRL_FLASH_IO;
@@ -240,11 +239,9 @@ static void DoC_ReadBuf(struct DiskOnChip *doc, u_char * buf, int len)
 {
        volatile int dummy;
        int modulus = 0xffff;
-       unsigned long docptr;
+       void __iomem *docptr = doc->virtadr;
        int i;
 
-       docptr = doc->virtadr;
-
        if (len <= 0)
                return;
 
@@ -271,11 +268,9 @@ static void DoC_ReadBuf(struct DiskOnChip *doc, u_char * buf, int len)
 /* Write a buffer to DoC, taking care of Millennium odditys */
 static void DoC_WriteBuf(struct DiskOnChip *doc, const u_char * buf, int len)
 {
-       unsigned long docptr;
+       void __iomem *docptr = doc->virtadr;
        int i;
 
-       docptr = doc->virtadr;
-
        if (len <= 0)
                return;
 
@@ -292,7 +287,7 @@ static void DoC_WriteBuf(struct DiskOnChip *doc, const u_char * buf, int len)
 
 static inline int DoC_SelectChip(struct DiskOnChip *doc, int chip)
 {
-       unsigned long docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
 
        /* Software requirement 11.4.4 before writing DeviceSelect */
        /* Deassert the CE line to eliminate glitches on the FCE# outputs */
@@ -316,7 +311,7 @@ static inline int DoC_SelectChip(struct DiskOnChip *doc, int chip)
 
 static inline int DoC_SelectFloor(struct DiskOnChip *doc, int floor)
 {
-       unsigned long docptr = doc->virtadr;
+       void __iomem *docptr = doc->virtadr;
 
        /* Select the floor (bank) of chips required */
        WriteDOC(floor, docptr, FloorSelect);
@@ -532,26 +527,26 @@ static const char im_name[] = "DoC2k_init";
  */
 static void DoC2k_init(struct mtd_info *mtd)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        struct DiskOnChip *old = NULL;
        int maxchips;
 
        /* We must avoid being called twice for the same device. */
 
        if (doc2klist)
-               old = (struct DiskOnChip *) doc2klist->priv;
+               old = doc2klist->priv;
 
        while (old) {
                if (DoC2k_is_alias(old, this)) {
                        printk(KERN_NOTICE
                               "Ignoring DiskOnChip 2000 at 0x%lX - already configured\n",
                               this->physadr);
-                       iounmap((void *) this->virtadr);
+                       iounmap(this->virtadr);
                        kfree(mtd);
                        return;
                }
                if (old->nextdoc)
-                       old = (struct DiskOnChip *) old->nextdoc->priv;
+                       old = old->nextdoc->priv;
                else
                        old = NULL;
        }
@@ -578,7 +573,7 @@ static void DoC2k_init(struct mtd_info *mtd)
        default:
                printk("Unknown ChipID 0x%02x\n", this->ChipID);
                kfree(mtd);
-               iounmap((void *) this->virtadr);
+               iounmap(this->virtadr);
                return;
        }
 
@@ -617,7 +612,7 @@ static void DoC2k_init(struct mtd_info *mtd)
 
        if (!this->totlen) {
                kfree(mtd);
-               iounmap((void *) this->virtadr);
+               iounmap(this->virtadr);
        } else {
                this->nextdoc = doc2klist;
                doc2klist = mtd;
@@ -638,16 +633,14 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
 static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
                        size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
-       unsigned long docptr;
+       struct DiskOnChip *this = mtd->priv;
+       void __iomem *docptr = this->virtadr;
        struct Nand *mychip;
        unsigned char syndrome[6];
        volatile char dummy;
        int i, len256 = 0, ret=0;
        size_t left = len;
 
-       docptr = this->virtadr;
-
        /* Don't allow read past end of device */
        if (from >= this->totlen)
                return -EINVAL;
@@ -797,17 +790,15 @@ static int doc_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
                         size_t * retlen, const u_char * buf,
                         u_char * eccbuf, struct nand_oobinfo *oobsel)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        int di; /* Yes, DI is a hangover from when I was disassembling the binary driver */
-       unsigned long docptr;
+       void __iomem *docptr = this->virtadr;
        volatile char dummy;
        int len256 = 0;
        struct Nand *mychip;
        size_t left = len;
        int status;
 
-       docptr = this->virtadr;
-
        /* Don't allow write past end of device */
        if (to >= this->totlen)
                return -EINVAL;
@@ -1042,15 +1033,12 @@ static int doc_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
 static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
                        size_t * retlen, u_char * buf)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        int len256 = 0, ret;
-       unsigned long docptr;
        struct Nand *mychip;
 
        down(&this->lock);
 
-       docptr = this->virtadr;
-
        mychip = &this->chips[ofs >> this->chipshift];
 
        if (this->curfloor != mychip->floor) {
@@ -1103,9 +1091,9 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
 static int doc_write_oob_nolock(struct mtd_info *mtd, loff_t ofs, size_t len,
                                size_t * retlen, const u_char * buf)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        int len256 = 0;
-       unsigned long docptr = this->virtadr;
+       void __iomem *docptr = this->virtadr;
        struct Nand *mychip = &this->chips[ofs >> this->chipshift];
        volatile int dummy;
        int status;
@@ -1206,7 +1194,7 @@ static int doc_write_oob_nolock(struct mtd_info *mtd, loff_t ofs, size_t len,
 static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
                         size_t * retlen, const u_char * buf)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        int ret;
 
        down(&this->lock);
@@ -1218,11 +1206,11 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
 
 static int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
-       struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
+       struct DiskOnChip *this = mtd->priv;
        __u32 ofs = instr->addr;
        __u32 len = instr->len;
        volatile int dummy;
-       unsigned long docptr;
+       void __iomem *docptr = this->virtadr;
        struct Nand *mychip;
        int status;
 
@@ -1235,8 +1223,6 @@ static int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
 
        instr->state = MTD_ERASING;
                
-       docptr = this->virtadr;
-
        /* FIXME: Do this in the background. Use timers or schedule_task() */
        while(len) {
                mychip = &this->chips[ofs >> this->chipshift];
@@ -1290,7 +1276,7 @@ static int doc_erase(struct mtd_info *mtd, struct erase_info *instr)
  *
  ****************************************************************************/
 
-int __init init_doc2000(void)
+static int __init init_doc2000(void)
 {
        inter_module_register(im_name, THIS_MODULE, &DoC2k_init);
        return 0;
@@ -1302,12 +1288,12 @@ static void __exit cleanup_doc2000(void)
        struct DiskOnChip *this;
 
        while ((mtd = doc2klist)) {
-               this = (struct DiskOnChip *) mtd->priv;
+               this = mtd->priv;
                doc2klist = this->nextdoc;
 
                del_mtd_device(mtd);
 
-               iounmap((void *) this->virtadr);
+               iounmap(this->virtadr);
                kfree(this->chips);
                kfree(mtd);
        }