mtd: nand: add the data structures for JEDEC parameter page

Create the nand_jedec_params{} and jedec_ecc_info{} according to
the JESD230A (Revision of JESD230, October 2012).

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

1 files changed, 75 insertions, 0 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c034dc4224cb..588f8a4a27af 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -342,6 +342,81 @@ struct nand_onfi_vendor_micron {
         u8 param_revision;
 } __packed;
 
+struct jedec_ecc_info {
+        u8 ecc_bits;
+        u8 codeword_size;
+        __le16 bb_per_lun;
+        __le16 block_endurance;
+        u8 reserved[2];
+} __packed;
+
+struct nand_jedec_params {
+        /* rev info and features block */
+        /* 'J' 'E' 'S' 'D'  */
+        u8 sig[4];
+        __le16 revision;
+        __le16 features;
+        u8 opt_cmd[3];
+        __le16 sec_cmd;
+        u8 num_of_param_pages;
+        u8 reserved0[18];
+
+        /* manufacturer information block */
+        char manufacturer[12];
+        char model[20];
+        u8 jedec_id[6];
+        u8 reserved1[10];
+
+        /* memory organization block */
+        __le32 byte_per_page;
+        __le16 spare_bytes_per_page;
+        u8 reserved2[6];
+        __le32 pages_per_block;
+        __le32 blocks_per_lun;
+        u8 lun_count;
+        u8 addr_cycles;
+        u8 bits_per_cell;
+        u8 programs_per_page;
+        u8 multi_plane_addr;
+        u8 multi_plane_op_attr;
+        u8 reserved3[38];
+
+        /* electrical parameter block */
+        __le16 async_sdr_speed_grade;
+        __le16 toggle_ddr_speed_grade;
+        __le16 sync_ddr_speed_grade;
+        u8 async_sdr_features;
+        u8 toggle_ddr_features;
+        u8 sync_ddr_features;
+        __le16 t_prog;
+        __le16 t_bers;
+        __le16 t_r;
+        __le16 t_r_multi_plane;
+        __le16 t_ccs;
+        __le16 io_pin_capacitance_typ;
+        __le16 input_pin_capacitance_typ;
+        __le16 clk_pin_capacitance_typ;
+        u8 driver_strength_support;
+        __le16 t_ald;
+        u8 reserved4[36];
+
+        /* ECC and endurance block */
+        u8 guaranteed_good_blocks;
+        __le16 guaranteed_block_endurance;
+        struct jedec_ecc_info ecc_info[4];
+        u8 reserved5[29];
+
+        /* reserved */
+        u8 reserved6[148];
+
+        /* vendor */
+        __le16 vendor_rev_num;
+        u8 reserved7[88];
+
+        /* CRC for Parameter Page */
+        __le16 crc;
+} __packed;
+
 /**
  * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices
  * @lock:               protection lock