mtd: nand: add ONFI vendor block for Micron

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Huang Shijie <b32955@freescale.com>

include/linux/mtd/nand.h

@@ -285,7 +285,8 @@ struct nand_onfi_params {
 	u8 reserved4[7];
 
 	/* vendor */
-	u8 reserved5[90];
+	__le16 vendor_revision;
+	u8 vendor[88];
 
 	__le16 crc;
 } __attribute__((packed));
@@ -326,6 +327,26 @@ struct onfi_ext_param_page {
 	 */
 } __packed;
 
+struct nand_onfi_vendor_micron {
+	u8 two_plane_read;
+	u8 read_cache;
+	u8 read_unique_id;
+	u8 dq_imped;
+	u8 dq_imped_num_settings;
+	u8 dq_imped_feat_addr;
+	u8 rb_pulldown_strength;
+	u8 rb_pulldown_strength_feat_addr;
+	u8 rb_pulldown_strength_num_settings;
+	u8 otp_mode;
+	u8 otp_page_start;
+	u8 otp_data_prot_addr;
+	u8 otp_num_pages;
+	u8 otp_feat_addr;
+	u8 read_retry_options;
+	u8 reserved[72];
+	u8 param_revision;
+} __packed;
+
 /**
  * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices
  * @lock:               protection lock