LXR linux/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 */
  20struct 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 */
  36struct 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 */
  55struct 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
  78static 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
  88struct mtd_info *lpddr_cmdset(struct map_info *);
  89
  90#endif
  91
  92