patch-2.4.21 linux-2.4.21/drivers/mtd/devices/doc2000.c

• Lines: 112
• Date: 2003-06-13 07:51:34.000000000 -0700
• Orig file: linux-2.4.20/drivers/mtd/devices/doc2000.c
• Orig date: 2001-10-04 15:14:59.000000000 -0700

diff -urN linux-2.4.20/drivers/mtd/devices/doc2000.c linux-2.4.21/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 1.46 2001/10/02 15:05:13 dwmw2 Exp $
+ * $Id: doc2000.c,v 1.50 2002/12/10 15:05:42 gleixner Exp $
  */
 
 #include <linux/kernel.h>
@@ -22,7 +22,6 @@
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ids.h>
 #include <linux/mtd/doc2000.h>
 
 #define DOC_SUPPORT_2000
@@ -54,9 +53,9 @@
 static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
 		     size_t *retlen, const u_char *buf);
 static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
-			size_t *retlen, u_char *buf, u_char *eccbuf);
+			size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel);
 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);
+			 size_t *retlen, const u_char *buf, u_char *eccbuf, int oobsel);
 static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
 			size_t *retlen, u_char *buf);
 static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, size_t len,
@@ -97,12 +96,8 @@
 			DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
 			return -EIO;
 		}
-		if (current->need_resched) {
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(1);
-		}
-		else
-			udelay(1);
+		udelay(1);
+		cond_resched();
 	}
 
 	return 0;
@@ -320,7 +315,7 @@
 
 static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip)
 {
-	int mfr, id, i;
+	int mfr, id, i, j;
 	volatile char dummy;
 
 	/* Page in the required floor/chip */
@@ -378,12 +373,16 @@
 
 	/* Print and store the manufacturer and ID codes. */
 	for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-		if (mfr == nand_flash_ids[i].manufacture_id &&
-		    id == nand_flash_ids[i].model_id) {
+		if (id == nand_flash_ids[i].id) {
+			/* Try to identify manufacturer */
+			for (j = 0; nand_manuf_ids[j].id != 0x0; j++) {
+				if (nand_manuf_ids[j].id == mfr)
+					break;
+			}	
 			printk(KERN_INFO
 			       "Flash chip found: Manufacturer ID: %2.2X, "
-			       "Chip ID: %2.2X (%s)\n", mfr, id,
-			       nand_flash_ids[i].name);
+			       "Chip ID: %2.2X (%s:%s)\n", mfr, id,
+			       nand_manuf_ids[j].name, nand_flash_ids[i].name);
 			if (!doc->mfr) {
 				doc->mfr = mfr;
 				doc->id = id;
@@ -391,7 +390,7 @@
 				    nand_flash_ids[i].chipshift;
 				doc->page256 = nand_flash_ids[i].page256;
 				doc->pageadrlen =
-				    nand_flash_ids[i].pageadrlen;
+				    nand_flash_ids[i].chipshift > 25 ? 3 : 2;
 				doc->erasesize =
 				    nand_flash_ids[i].erasesize;
 				return 1;
@@ -597,11 +596,11 @@
 		    size_t * retlen, u_char * buf)
 {
 	/* Just a special case of doc_read_ecc */
-	return doc_read_ecc(mtd, from, len, retlen, buf, NULL);
+	return doc_read_ecc(mtd, from, len, retlen, buf, NULL, 0);
 }
 
 static int doc_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
-			size_t * retlen, u_char * buf, u_char * eccbuf)
+			size_t * retlen, u_char * buf, u_char * eccbuf, int oobsel)
 {
 	struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
 	unsigned long docptr;
@@ -745,12 +744,12 @@
 		     size_t * retlen, const u_char * buf)
 {
 	char eccbuf[6];
-	return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf);
+	return doc_write_ecc(mtd, to, len, retlen, buf, eccbuf, 0);
 }
 
 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)
+			 u_char * eccbuf, int oobsel)
 {
 	struct DiskOnChip *this = (struct DiskOnChip *) mtd->priv;
 	int di; /* Yes, DI is a hangover from when I was disassembling the binary driver */