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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 | ||
f6ca3fb6 RC |
24 | /* JEDEC Optional Commands */ |
25 | #define JEDEC_OPT_CMD_READ_CACHE BIT(1) | |
26 | ||
8ae3fbf8 BB |
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 */ |