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