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Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/nand.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 01a7f3c71bd0..bf4c566f0647 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -202,6 +202,10 @@ typedef enum {
/* Keep gcc happy */
struct nand_chip;
+/* ONFI features */
+#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
+#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
+
/* ONFI timing mode, used in both asynchronous and synchronous mode */
#define ONFI_TIMING_MODE_0 (1 << 0)
#define ONFI_TIMING_MODE_1 (1 << 1)
@@ -756,6 +760,12 @@ struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd)
return chip->priv;
}
+/* return the supported features. */
+static inline int onfi_feature(struct nand_chip *chip)
+{
+ return chip->onfi_version ? le16_to_cpu(chip->onfi_params.features) : 0;
+}
+
/* return the supported asynchronous timing mode. */
static inline int onfi_get_async_timing_mode(struct nand_chip *chip)
{