/* SPDX-License-Identifier: GPL-2.0 */ /* Primary function overlay window definitions * and service functions used by LPDDR chips */ #ifndef __LINUX_MTD_PFOW_H #define __LINUX_MTD_PFOW_H #include <linux/mtd/qinfo.h> /* PFOW registers addressing */ /* Address of symbol "P" */ #define PFOW_QUERY_STRING_P … /* Address of symbol "F" */ #define PFOW_QUERY_STRING_F … /* Address of symbol "O" */ #define PFOW_QUERY_STRING_O … /* Address of symbol "W" */ #define PFOW_QUERY_STRING_W … /* Identification info for LPDDR chip */ #define PFOW_MANUFACTURER_ID … #define PFOW_DEVICE_ID … /* Address in PFOW where prog buffer can be found */ #define PFOW_PROGRAM_BUFFER_OFFSET … /* Size of program buffer in words */ #define PFOW_PROGRAM_BUFFER_SIZE … /* Address command code register */ #define PFOW_COMMAND_CODE … /* command data register */ #define PFOW_COMMAND_DATA … /* command address register lower address bits */ #define PFOW_COMMAND_ADDRESS_L … /* command address register upper address bits */ #define PFOW_COMMAND_ADDRESS_H … /* number of bytes to be proggrammed lower address bits */ #define PFOW_DATA_COUNT_L … /* number of bytes to be proggrammed higher address bits */ #define PFOW_DATA_COUNT_H … /* command execution register, the only possible value is 0x01 */ #define PFOW_COMMAND_EXECUTE … /* 0x01 should be written at this address to clear buffer */ #define PFOW_CLEAR_PROGRAM_BUFFER … /* device program/erase suspend register */ #define PFOW_PROGRAM_ERASE_SUSPEND … /* device status register */ #define PFOW_DSR … /* LPDDR memory device command codes */ /* They are possible values of PFOW command code register */ #define LPDDR_WORD_PROGRAM … #define LPDDR_BUFF_PROGRAM … #define LPDDR_BLOCK_ERASE … #define LPDDR_LOCK_BLOCK … #define LPDDR_UNLOCK_BLOCK … #define LPDDR_READ_BLOCK_LOCK_STATUS … #define LPDDR_INFO_QUERY … #define LPDDR_READ_OTP … #define LPDDR_PROG_OTP … #define LPDDR_RESUME … /* Defines possible value of PFOW command execution register */ #define LPDDR_START_EXECUTION … /* Defines possible value of PFOW program/erase suspend register */ #define LPDDR_SUSPEND … /* Possible values of PFOW device status register */ /* access R - read; RC read & clearable */ #define DSR_DPS … #define DSR_PSS … #define DSR_VPPS … #define DSR_PROGRAM_STATUS … #define DSR_ERASE_STATUS … #define DSR_ESS … #define DSR_READY_STATUS … #define DSR_RPS … #define DSR_AOS … #define DSR_AVAILABLE … /* The superset of all possible error bits in DSR */ #define DSR_ERR … static inline void send_pfow_command(struct map_info *map, unsigned long cmd_code, unsigned long adr, unsigned long len, map_word *datum) { … } #endif /* __LINUX_MTD_PFOW_H */
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