You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
1.9 KiB
91 lines
1.9 KiB
/*
|
|
* Copyright (c) 2019-2020, Broadcom
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef SF_H
|
|
#define SF_H
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#ifdef SPI_DEBUG
|
|
#define SPI_DEBUG(fmt, ...) INFO(fmt, ##__VA_ARGS__)
|
|
#else
|
|
#define SPI_DEBUG(fmt, ...)
|
|
#endif
|
|
|
|
#define SPI_FLASH_MAX_ID_LEN 6
|
|
|
|
#define CMD_WRSR 0x01 /* Write status register */
|
|
#define CMD_PAGE_PROGRAM 0x02
|
|
#define CMD_READ_NORMAL 0x03
|
|
#define CMD_RDSR 0x05
|
|
#define CMD_WRITE_ENABLE 0x06
|
|
#define CMD_RDFSR 0x70
|
|
#define CMD_READ_ID 0x9f
|
|
#define CMD_ERASE_4K 0x20
|
|
#define CMD_ERASE_64K 0xd8
|
|
#define ERASE_SIZE_64K (64 * 1024)
|
|
|
|
/* Common status */
|
|
#define STATUS_WIP BIT(0)
|
|
|
|
struct spi_flash {
|
|
struct spi_slave *spi;
|
|
uint32_t size;
|
|
uint32_t page_size;
|
|
uint32_t sector_size;
|
|
uint32_t erase_size;
|
|
uint8_t erase_cmd;
|
|
uint8_t read_cmd;
|
|
uint8_t write_cmd;
|
|
uint8_t flags;
|
|
};
|
|
|
|
struct spi_flash_info {
|
|
const char *name;
|
|
|
|
/*
|
|
* This array stores the ID bytes.
|
|
* The first three bytes are the JEDIC ID.
|
|
* JEDEC ID zero means "no ID" (mostly older chips).
|
|
*/
|
|
uint8_t id[SPI_FLASH_MAX_ID_LEN];
|
|
uint8_t id_len;
|
|
|
|
uint32_t sector_size;
|
|
uint32_t n_sectors;
|
|
uint16_t page_size;
|
|
|
|
uint8_t flags;
|
|
};
|
|
|
|
/* Enum list - Full read commands */
|
|
enum spi_read_cmds {
|
|
ARRAY_SLOW = BIT(0),
|
|
ARRAY_FAST = BIT(1),
|
|
DUAL_OUTPUT_FAST = BIT(2),
|
|
DUAL_IO_FAST = BIT(3),
|
|
QUAD_OUTPUT_FAST = BIT(4),
|
|
QUAD_IO_FAST = BIT(5),
|
|
};
|
|
|
|
/* sf param flags */
|
|
enum spi_param_flag {
|
|
SECT_4K = BIT(0),
|
|
SECT_32K = BIT(1),
|
|
E_FSR = BIT(2),
|
|
SST_BP = BIT(3),
|
|
SST_WP = BIT(4),
|
|
WR_QPP = BIT(5),
|
|
};
|
|
|
|
int spi_flash_cmd_read(const uint8_t *cmd, size_t cmd_len,
|
|
void *data, size_t data_len);
|
|
int spi_flash_cmd(uint8_t cmd, void *response, size_t len);
|
|
int spi_flash_cmd_write(const uint8_t *cmd, size_t cmd_len,
|
|
const void *data, size_t data_len);
|
|
#endif
|