1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org> |
4 | * Steven J. Hill <sjhill@realitydiluted.com> |
5 | * Thomas Gleixner <tglx@linutronix.de> |
6 | * |
7 | * Contains all JEDEC related definitions |
8 | */ |
9 | |
10 | #ifndef __LINUX_MTD_JEDEC_H |
11 | #define __LINUX_MTD_JEDEC_H |
12 | |
13 | struct jedec_ecc_info { |
14 | u8 ecc_bits; |
15 | u8 codeword_size; |
16 | __le16 bb_per_lun; |
17 | __le16 block_endurance; |
18 | u8 reserved[2]; |
19 | } __packed; |
20 | |
21 | /* JEDEC features */ |
22 | #define JEDEC_FEATURE_16_BIT_BUS (1 << 0) |
23 | |
24 | /* JEDEC Optional Commands */ |
25 | #define JEDEC_OPT_CMD_READ_CACHE BIT(1) |
26 | |
27 | struct nand_jedec_params { |
28 | /* rev info and features block */ |
29 | /* 'J' 'E' 'S' 'D' */ |
30 | u8 sig[4]; |
31 | __le16 revision; |
32 | __le16 features; |
33 | u8 opt_cmd[3]; |
34 | __le16 sec_cmd; |
35 | u8 num_of_param_pages; |
36 | u8 reserved0[18]; |
37 | |
38 | /* manufacturer information block */ |
39 | char manufacturer[12]; |
40 | char model[20]; |
41 | u8 jedec_id[6]; |
42 | u8 reserved1[10]; |
43 | |
44 | /* memory organization block */ |
45 | __le32 byte_per_page; |
46 | __le16 spare_bytes_per_page; |
47 | u8 reserved2[6]; |
48 | __le32 pages_per_block; |
49 | __le32 blocks_per_lun; |
50 | u8 lun_count; |
51 | u8 addr_cycles; |
52 | u8 bits_per_cell; |
53 | u8 programs_per_page; |
54 | u8 multi_plane_addr; |
55 | u8 multi_plane_op_attr; |
56 | u8 reserved3[38]; |
57 | |
58 | /* electrical parameter block */ |
59 | __le16 async_sdr_speed_grade; |
60 | __le16 toggle_ddr_speed_grade; |
61 | __le16 sync_ddr_speed_grade; |
62 | u8 async_sdr_features; |
63 | u8 toggle_ddr_features; |
64 | u8 sync_ddr_features; |
65 | __le16 t_prog; |
66 | __le16 t_bers; |
67 | __le16 t_r; |
68 | __le16 t_r_multi_plane; |
69 | __le16 t_ccs; |
70 | __le16 io_pin_capacitance_typ; |
71 | __le16 input_pin_capacitance_typ; |
72 | __le16 clk_pin_capacitance_typ; |
73 | u8 driver_strength_support; |
74 | __le16 t_adl; |
75 | u8 reserved4[36]; |
76 | |
77 | /* ECC and endurance block */ |
78 | u8 guaranteed_good_blocks; |
79 | __le16 guaranteed_block_endurance; |
80 | struct jedec_ecc_info ecc_info[4]; |
81 | u8 reserved5[29]; |
82 | |
83 | /* reserved */ |
84 | u8 reserved6[148]; |
85 | |
86 | /* vendor */ |
87 | __le16 vendor_rev_num; |
88 | u8 reserved7[88]; |
89 | |
90 | /* CRC for Parameter Page */ |
91 | __le16 crc; |
92 | } __packed; |
93 | |
94 | #endif /* __LINUX_MTD_JEDEC_H */ |
95 | |