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/* SPDX-License-Identifier: GPL-2.0+
*
* Copyright 2020 Broadcom Ltd.
*/
#ifndef _SPINAND_MINI_H
#define _SPINAND_MINI_H
#include <spi.h>
#include <spi-mem.h>
#include <linux/mtd/spinand.h>
#define SPINAND_MFR_WINBOND 0xEF
#define SPINAND_MFR_GIGADEVICE_ESMT 0xC8
#define SPINAND_MFR_MACRONIX 0xC2
#define SPINAND_MFR_TOSHIBA 0x98
#define SPINAND_MFR_MICRON 0x2C
#define SPINAND_MFR_PARAGON 0xA1
#define SPINAND_READID_OP_EXT(naddr, ndummy, buf, len) \
SPI_MEM_OP(SPI_MEM_OP_CMD(0x9f, 1), \
SPI_MEM_OP_ADDR(naddr, 0, 1), \
SPI_MEM_OP_DUMMY(ndummy, 1), \
SPI_MEM_OP_DATA_IN(len, buf, 1))
#define SPINAND_READID_OP_ONLY(buf, len) \
SPINAND_READID_OP_EXT(0, 0, buf, len)
#define SPINAND_READID_OP_ADDR(buf, len) \
SPINAND_READID_OP_EXT(1, 0, buf, len)
#define SPINAND_READID_OP_DUMMY(buf, len) \
SPINAND_READID_OP_EXT(0, 1, buf, len)
#pragma pack(push,1)
struct spinandmini_mem_org {
u8 bits_per_cell;
u16 pagesize;
u16 pages_per_eraseblock;
u16 eraseblocks_per_lun;
u8 planes_per_lun;
u8 luns_per_target;
u8 ntargets;
};
#define SPINANDMINI_MEMORG(bpc, ps, os, ppe, epl, ppl, lpt, nt) \
{ \
.bits_per_cell = (bpc), \
.pagesize = (ps), \
.pages_per_eraseblock = (ppe), \
.eraseblocks_per_lun = (epl), \
.planes_per_lun = (ppl), \
.luns_per_target = (lpt), \
.ntargets = (nt), \
}
struct spinandmini_info {
u8 id[SPINAND_MAX_ID_LEN];
u8 id_len;
struct spinandmini_mem_org memorg;
};
#pragma pack(pop)
struct spinandmini_device {
struct spi_slave *slave;
struct spinand_id id;
const struct spinandmini_mem_org* memorg;
u32 page_shift;
u32 block_shift;
u64 target_shift; /* die shift */
u32 block_size;
u32 page_size;
u64 total_size;
int (*select_target)(struct spinandmini_device *spinand,
unsigned int target);
unsigned int cur_target;
u8 *cfg_cache;
};
void spinandmini_init(void);
u32 spinandmini_get_block_size(void);
u32 spinandmini_get_page_size(void);
u64 spinandmini_get_total_size(void);
int spinandmini_read_buf(int block, int offset, u8 *dst, u32 len);
int spinandmini_is_bad_block(int block);
#endif
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