include/linux/mtd/qinfo.h

   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
  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