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>

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c034dc4224cb9a3a1175fe3938d4ceb7f798c48d..588f8a4a27af7bc0720f7286a6bd55834aa71772 100644 (file)
--- 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