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

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=afbfff03d611de22b1ec7127ad56920e02936d5e
Commit:     afbfff03d611de22b1ec7127ad56920e02936d5e
Parent:     91e165030deedc612c153dfeaba294d49632ade3
Author:     Huang Shijie <b32955 at freescale.com>
AuthorDate: Fri Feb 21 13:39:37 2014 +0800
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Mon Mar 10 22:42:26 2014 -0700

    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 at freescale.com>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 include/linux/mtd/nand.h | 75 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c034dc4..588f8a4 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