linux/include/linux/mtd/qinfo.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_MTD_QINFO_H
#define __LINUX_MTD_QINFO_H

#include <linux/mtd/map.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/flashchip.h>
#include <linux/mtd/partitions.h>

/* lpddr_private describes lpddr flash chip in memory map
 * @ManufactId - Chip Manufacture ID
 * @DevId - Chip Device ID
 * @qinfo - pointer to qinfo records describing the chip
 * @numchips - number of chips including virual RWW partitions
 * @chipshift - Chip/partition size 2^chipshift
 * @chips - per-chip data structure
 */
struct lpddr_private { … };

/* qinfo_query_info structure contains request information for
 * each qinfo record
 * @major - major number of qinfo record
 * @major - minor number of qinfo record
 * @id_str - descriptive string to access the record
 * @desc - detailed description for the qinfo record
 */
struct qinfo_query_info { … };

/*
 * qinfo_chip structure contains necessary qinfo records data
 * @DevSizeShift - Device size 2^n bytes
 * @BufSizeShift - Program buffer size 2^n bytes
 * @TotalBlocksNum - Total number of blocks
 * @UniformBlockSizeShift - Uniform block size 2^UniformBlockSizeShift bytes
 * @HWPartsNum - Number of hardware partitions
 * @SuspEraseSupp - Suspend erase supported
 * @SingleWordProgTime - Single word program 2^SingleWordProgTime u-sec
 * @ProgBufferTime - Program buffer write 2^ProgBufferTime u-sec
 * @BlockEraseTime - Block erase 2^BlockEraseTime m-sec
 */
struct qinfo_chip { … };

/* defines for fixup usage */
#define LPDDR_MFR_ANY …
#define LPDDR_ID_ANY …
#define NUMONYX_MFGR_ID …
#define R18_DEVICE_ID_1G …

static inline map_word lpddr_build_cmd(u_long cmd, struct map_info *map)
{ … }

#define CMD(x) …
#define CMDVAL(cmd) …

struct mtd_info *lpddr_cmdset(struct map_info *);

#endif