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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
922ab535 AK |
2 | #ifndef __LINUX_MTD_QINFO_H |
3 | #define __LINUX_MTD_QINFO_H | |
4 | ||
5 | #include <linux/mtd/map.h> | |
6 | #include <linux/wait.h> | |
7 | #include <linux/spinlock.h> | |
8 | #include <linux/delay.h> | |
9 | #include <linux/mtd/mtd.h> | |
10 | #include <linux/mtd/flashchip.h> | |
11 | #include <linux/mtd/partitions.h> | |
12 | ||
13 | /* lpddr_private describes lpddr flash chip in memory map | |
14 | * @ManufactId - Chip Manufacture ID | |
15 | * @DevId - Chip Device ID | |
16 | * @qinfo - pointer to qinfo records describing the chip | |
17 | * @numchips - number of chips including virual RWW partitions | |
8ab102d6 | 18 | * @chipshift - Chip/partition size 2^chipshift |
922ab535 AK |
19 | * @chips - per-chip data structure |
20 | */ | |
21 | struct lpddr_private { | |
22 | uint16_t ManufactId; | |
23 | uint16_t DevId; | |
24 | struct qinfo_chip *qinfo; | |
25 | int numchips; | |
26 | unsigned long chipshift; | |
11399346 | 27 | struct flchip chips[]; |
922ab535 AK |
28 | }; |
29 | ||
30 | /* qinfo_query_info structure contains request information for | |
31 | * each qinfo record | |
32 | * @major - major number of qinfo record | |
33 | * @major - minor number of qinfo record | |
34 | * @id_str - descriptive string to access the record | |
35 | * @desc - detailed description for the qinfo record | |
36 | */ | |
37 | struct qinfo_query_info { | |
38 | uint8_t major; | |
39 | uint8_t minor; | |
40 | char *id_str; | |
41 | char *desc; | |
42 | }; | |
43 | ||
44 | /* | |
45 | * qinfo_chip structure contains necessary qinfo records data | |
46 | * @DevSizeShift - Device size 2^n bytes | |
47 | * @BufSizeShift - Program buffer size 2^n bytes | |
48 | * @TotalBlocksNum - Total number of blocks | |
49 | * @UniformBlockSizeShift - Uniform block size 2^UniformBlockSizeShift bytes | |
50 | * @HWPartsNum - Number of hardware partitions | |
51 | * @SuspEraseSupp - Suspend erase supported | |
52 | * @SingleWordProgTime - Single word program 2^SingleWordProgTime u-sec | |
53 | * @ProgBufferTime - Program buffer write 2^ProgBufferTime u-sec | |
54 | * @BlockEraseTime - Block erase 2^BlockEraseTime m-sec | |
55 | */ | |
56 | struct qinfo_chip { | |
57 | /* General device info */ | |
58 | uint16_t DevSizeShift; | |
59 | uint16_t BufSizeShift; | |
60 | /* Erase block information */ | |
61 | uint16_t TotalBlocksNum; | |
62 | uint16_t UniformBlockSizeShift; | |
63 | /* Partition information */ | |
64 | uint16_t HWPartsNum; | |
65 | /* Optional features */ | |
66 | uint16_t SuspEraseSupp; | |
67 | /* Operation typical time */ | |
68 | uint16_t SingleWordProgTime; | |
69 | uint16_t ProgBufferTime; | |
70 | uint16_t BlockEraseTime; | |
71 | }; | |
72 | ||
73 | /* defines for fixup usage */ | |
74 | #define LPDDR_MFR_ANY 0xffff | |
75 | #define LPDDR_ID_ANY 0xffff | |
76 | #define NUMONYX_MFGR_ID 0x0089 | |
77 | #define R18_DEVICE_ID_1G 0x893c | |
78 | ||
79 | static inline map_word lpddr_build_cmd(u_long cmd, struct map_info *map) | |
80 | { | |
81 | map_word val = { {0} }; | |
82 | val.x[0] = cmd; | |
83 | return val; | |
84 | } | |
85 | ||
86 | #define CMD(x) lpddr_build_cmd(x, map) | |
87 | #define CMDVAL(cmd) cmd.x[0] | |
88 | ||
89 | struct mtd_info *lpddr_cmdset(struct map_info *); | |
90 | ||
91 | #endif | |
92 |