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Diffstat (limited to 'include/linux/mtd/mtd.h')
-rw-r--r--include/linux/mtd/mtd.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index c50c3f3927d..ab580418391 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -1,5 +1,5 @@
/*
- * $Id: mtd.h,v 1.59 2005/04/11 10:19:02 gleixner Exp $
+ * $Id: mtd.h,v 1.60 2005/08/06 04:40:42 nico Exp $
*
* Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
*
@@ -72,7 +72,17 @@ struct mtd_info {
u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
u_int32_t ecctype;
u_int32_t eccsize;
-
+
+ /*
+ * Reuse some of the above unused fields in the case of NOR flash
+ * with configurable programming regions to avoid modifying the
+ * user visible structure layout/size. Only valid when the
+ * MTD_PROGRAM_REGIONS flag is set.
+ * (Maybe we should have an union for those?)
+ */
+#define MTD_PROGREGION_SIZE(mtd) (mtd)->oobblock
+#define MTD_PROGREGION_CTRLMODE_VALID(mtd) (mtd)->oobsize
+#define MTD_PROGREGION_CTRLMODE_INVALID(mtd) (mtd)->ecctype
// Kernel-only stuff starts here.
char *name;