[MTD] OneNAND: Reduce Double Density Package (DDP) operations

[net-next-2.6.git] / include / linux / mtd / onenand.h

diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index f775a7af3890087215ce16504a8da68f513310dd..a99b2944d26b90f3c4c3c01e153da39c26001836 100644 (file)
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -150,6 +150,9 @@ struct onenand_chip {
 #define ONENAND_SET_SYS_CFG1(v, this)                                  \
        (this->write_word(v, this->base + ONENAND_REG_SYS_CFG1))
 
+#define ONENAND_IS_DDP(this)                                           \
+       (this->device_id & ONENAND_DEVICE_IS_DDP)
+
 /* Check byte access in OneNAND */
 #define ONENAND_CHECK_BYTE_ACCESS(addr)                (addr & 0x1)