Re-factoring the legacy NAND code (legacy NAND now only in board-specific

code and in SoC code). Boards using the old way have CFG_NAND_LEGACY and
BOARDLIBS = drivers/nand_legacy/libnand_legacy.a added. Build breakage for
NETTA.ERR and NETTA_ISDN - will go away when the new NAND support is
implemented for these boards.

drivers/nand/diskonchip.c

@@ -20,7 +20,11 @@
  */
 
 #include <common.h>
-#ifdef CONFIG_NEW_NAND_CODE
+
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sched.h>
@@ -1782,4 +1786,3 @@ module_exit(cleanup_nanddoc);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
 MODULE_DESCRIPTION("M-Systems DiskOnChip 2000, Millennium and Millennium Plus device driver\n");
-#endif /* CONFIG_NEW_NAND_CODE */

drivers/nand/nand.c

@@ -23,7 +23,10 @@
 
 #include <common.h>
 
-#ifdef CONFIG_NEW_NAND_CODE
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
+
 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 
 #include <nand.h>
@@ -72,5 +75,3 @@ void nand_init(void)
 }
 
 #endif
-#endif /* CONFIG_NEW_NAND_CODE */
-

drivers/nand/nand_base.c

@@ -71,7 +71,10 @@
 #endif
 
 #include <common.h>
-#ifdef CONFIG_NEW_NAND_CODE
+
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
 
 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 
@@ -864,10 +867,10 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
 				break;
 		}
 	}
-
-	/* XXX nand device 1 on dave (PPChameleonEVB) needs more time */
+#ifdef PPCHAMELON_NAND_TIMER_HACK
 	reset_timer();
 	while (get_timer(0) < 10);
+#endif /*  PPCHAMELON_NAND_TIMER_HACK */
 
 	return this->read_byte(mtd);
 }
@@ -2660,5 +2663,3 @@ void nand_release (struct mtd_info *mtd)
 }
 
 #endif
-#endif /* CONFIG_NEW_NAND_CODE */
-

drivers/nand/nand_bbt.c

@@ -54,7 +54,10 @@
 
 #include <common.h>
 
-#ifdef CONFIG_NEW_NAND_CODE
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
+
 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 
 #include <malloc.h>
@@ -1051,5 +1054,3 @@ int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt)
 }
 
 #endif
-#endif /* CONFIG_NEW_NAND_CODE */
-

drivers/nand/nand_ecc.c

@@ -37,7 +37,10 @@
 
 #include <common.h>
 
-#ifdef CONFIG_NEW_NAND_CODE
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
+
 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 
 #include<linux/mtd/mtd.h>
@@ -243,5 +246,3 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_cha
 }
 
 #endif	/* CONFIG_COMMANDS & CFG_CMD_NAND */
-#endif /* CONFIG_NEW_NAND_CODE */
-

drivers/nand/nand_ids.c

@@ -13,7 +13,10 @@
 
 #include <common.h>
 
-#ifdef CONFIG_NEW_NAND_CODE
+#ifdef CFG_NAND_LEGACY
+#error CFG_NAND_LEGACY defined in a file not using the legacy NAND support!
+#endif
+
 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
 
 #include <linux/mtd/nand.h>
@@ -127,5 +130,3 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{0x0, "Unknown"}
 };
 #endif
-#endif /* CONFIG_NEW_NAND_CODE */
-

drivers/nand_legacy/Makefile

@@ -0,0 +1,16 @@
+include $(TOPDIR)/config.mk
+
+LIB := libnand_legacy.a
+
+OBJS := nand_legacy.o
+all:	$(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
+
+sinclude .depend