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-rw-r--r--include/linux/mtd/onenand.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index f775a7af3890..a99b2944d26b 100644
--- 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)
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