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Commit afbfff03 authored by Huang Shijie's avatar Huang Shijie Committed by Brian Norris
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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: default avatarHuang Shijie <b32955@freescale.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent 91e16503

include/linux/mtd/nand.h

+75 −0
Original line number Original line Diff line number Diff line
@@ -342,6 +342,81 @@ struct nand_onfi_vendor_micron { 
	u8 param_revision;

	u8 param_revision;

} __packed;

} __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

 * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices

 * @lock:               protection lock

 * @lock:               protection lock