93 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __LINUX_MTD_QINFO_H3#define __LINUX_MTD_QINFO_H4 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 map14 * @ManufactId - Chip Manufacture ID15 * @DevId - Chip Device ID16 * @qinfo - pointer to qinfo records describing the chip17 * @numchips - number of chips including virual RWW partitions18 * @chipshift - Chip/partition size 2^chipshift19 * @chips - per-chip data structure20 */21struct lpddr_private {22 uint16_t ManufactId;23 uint16_t DevId;24 struct qinfo_chip *qinfo;25 int numchips;26 unsigned long chipshift;27 struct flchip chips[] __counted_by(numchips);28};29 30/* qinfo_query_info structure contains request information for31 * each qinfo record32 * @major - major number of qinfo record33 * @major - minor number of qinfo record34 * @id_str - descriptive string to access the record35 * @desc - detailed description for the qinfo record36 */37struct 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 data46 * @DevSizeShift - Device size 2^n bytes47 * @BufSizeShift - Program buffer size 2^n bytes48 * @TotalBlocksNum - Total number of blocks49 * @UniformBlockSizeShift - Uniform block size 2^UniformBlockSizeShift bytes50 * @HWPartsNum - Number of hardware partitions51 * @SuspEraseSupp - Suspend erase supported52 * @SingleWordProgTime - Single word program 2^SingleWordProgTime u-sec53 * @ProgBufferTime - Program buffer write 2^ProgBufferTime u-sec54 * @BlockEraseTime - Block erase 2^BlockEraseTime m-sec55 */56struct 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 0xffff75#define LPDDR_ID_ANY 0xffff76#define NUMONYX_MFGR_ID 0x008977#define R18_DEVICE_ID_1G 0x893c78 79static 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 89struct mtd_info *lpddr_cmdset(struct map_info *);90 91#endif92 93