/* mbed Microcontroller Library
* Copyright (c) 2018-2018 ARM Limited
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_QSPI_FLASH_W25Q32JV_H
#define MBED_QSPI_FLASH_W25Q32JV_H
#define QSPI_FLASH_CHIP_STRING "Winbond W25Q32JV"
// Command for reading status register
#define QSPI_CMD_RDSR 0x05
// Command for reading configuration register
#define QSPI_CMD_RDCR0 0x35
#define QSPI_CMD_RDCR1 0x15
// Command for writing status/configuration register
#define QSPI_CMD_WRSR 0x01
// Command for writing configuration register
#define QSPI_CMD_WRCR0 0x31
#define QSPI_CMD_WRCR1 0x11
// Command for reading security register
#define QSPI_CMD_RDSCUR 0x48
// Command for setting Reset Enable
#define QSPI_CMD_RSTEN 0x66
// Command for setting Reset
#define QSPI_CMD_RST 0x99
// Command for setting write enable
#define QSPI_CMD_WREN 0x06
// Command for setting write disable
#define QSPI_CMD_WRDI 0x04
// WRSR operations max time [us] (datasheet max time + 15%)
#define QSPI_WRSR_MAX_TIME 34500 // 30ms
// general wait max time [us]
#define QSPI_WAIT_MAX_TIME 100000 // 100ms
// Commands for writing (page programming)
#define QSPI_CMD_WRITE_1IO 0x02 // 1-1-1 mode
// write operations max time [us] (datasheet max time + 15%)
#define QSPI_PAGE_PROG_MAX_TIME 11500 // 10ms
#define QSPI_PAGE_SIZE 256 // 256B
#define QSPI_SECTOR_SIZE 4096 // 4kB
#define QSPI_SECTOR_COUNT 1024
// Commands for reading
#define QSPI_CMD_READ_1IO_FAST 0x0B // 1-1-1 mode
#define QSPI_CMD_READ_1IO 0x03 // 1-1-1 mode
#define QSPI_CMD_READ_2IO 0xBB // 1-2-2 mode
#define QSPI_CMD_READ_1I2O 0x3B // 1-1-2 mode
#define QSPI_CMD_READ_4IO 0xEB // 1-4-4 mode
#define QSPI_CMD_READ_1I4O 0x6B // 1-1-4 mode
#define QSPI_READ_1IO_DUMMY_CYCLE 0
#define QSPI_READ_FAST_DUMMY_CYCLE 8
#define QSPI_READ_2IO_DUMMY_CYCLE 4
#define QSPI_READ_1I2O_DUMMY_CYCLE 8
#define QSPI_READ_4IO_DUMMY_CYCLE 6
#define QSPI_READ_1I4O_DUMMY_CYCLE 8
// Commands for erasing
#define QSPI_CMD_ERASE_SECTOR 0x20 // 4kB
#define QSPI_CMD_ERASE_BLOCK_32 0x52 // 32kB
#define QSPI_CMD_ERASE_BLOCK_64 0xD8 // 64kB
#define QSPI_CMD_ERASE_CHIP 0x60 // or 0xC7
// erase operations max time [us] (datasheet max time + 15%)
#define QSPI_ERASE_SECTOR_MAX_TIME 480000 // 400 ms
#define QSPI_ERASE_BLOCK_32_MAX_TIME 3450000 // 3s
#define QSPI_ERASE_BLOCK_64_MAX_TIME 4025000 // 3.5s
// max frequency for basic rw operation (for fast mode)
#define QSPI_COMMON_MAX_FREQUENCY 32000000
#define QSPI_STATUS_REG_SIZE 1
#define QSPI_CONFIG_REG_0_SIZE 1
#define QSPI_CONFIG_REG_1_SIZE 1
#define QSPI_SECURITY_REG_SIZE 1
#define QSPI_MAX_REG_SIZE 1
// status register
#define STATUS_BIT_WIP (1 << 0) // write in progress bit
#define STATUS_BIT_WEL (1 << 1) // write enable latch
#define STATUS_BIT_BP0 (1 << 2) // block protect 0
#define STATUS_BIT_BP1 (1 << 3) // block protect 1
#define STATUS_BIT_BP2 (1 << 4) // block protect 2
#define STATUS_BIT_BP_TB (1 << 5) // block protect top/bottom
#define STATUS_BIT_SP (1 << 6) // sector protect
#define STATUS_BIT_SRWD (1 << 7) // status register protect
// configuration register 0
// bit 2 reserved
#define CONFIG0_BIT_SRL (1 << 0) // status register lock
#define CONFIG0_BIT_QE (1 << 1) // quad enable
#define CONFIG0_BIT_LB1 (1 << 3) // security register lock 1
#define CONFIG0_BIT_LB2 (1 << 4) // security register lock 2
#define CONFIG0_BIT_LB3 (1 << 5) // security register lock 3
#define CONFIG0_BIT_CMP (1 << 6) // complement protect
#define CONFIG0_BIT_SUS (1 << 7) // suspend status
// configuration register 1
// bits 0, 1, 3, 4, 7 reserved
#define CONFIG1_BIT_WPS (1 << 2) // write protect selection
#define CONFIG1_BIT_DRV2 (1 << 5) // output driver strength 2
#define CONFIG1_BIT_DRV1 (1 << 6) // output driver strength 1
#define QUAD_ENABLE() \
\
uint8_t reg_data[QSPI_CONFIG_REG_0_SIZE]; \
\
memset(reg_data, 0, QSPI_CONFIG_REG_0_SIZE); \
if (read_register(QSPI_CMD_RDCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
if (write_enable(qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
reg_data[0] = reg_data[0] & ~(CONFIG0_BIT_QE); \
if (write_register(QSPI_CMD_WRCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
qspi.cmd.configure(MODE_4_4_4, ADDR_SIZE_24, ALT_SIZE_8); \
WAIT_FOR(WRSR_MAX_TIME, qspi); \
memset(reg_data, 0, QSPI_CONFIG_REG_0_SIZE); \
if (read_register(QSPI_CMD_RDCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
return ((reg_data[0] & (CONFIG0_BIT_QE)) == 0 ? \
QSPI_STATUS_OK : QSPI_STATUS_ERROR)
#define QUAD_DISABLE() \
\
uint8_t reg_data[QSPI_CONFIG_REG_0_SIZE]; \
\
memset(reg_data, 0, QSPI_CONFIG_REG_0_SIZE); \
if (read_register(QSPI_CMD_RDCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
if (write_enable(qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
reg_data[0] = reg_data[0] | (CONFIG0_BIT_QE); \
if (write_register(QSPI_CMD_WRCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
WAIT_FOR(WRSR_MAX_TIME, qspi); \
qspi.cmd.configure(MODE_1_1_1, ADDR_SIZE_24, ALT_SIZE_8); \
memset(reg_data, 0, QSPI_CONFIG_REG_0_SIZE); \
if (read_register(QSPI_CMD_RDCR0, reg_data, \
QSPI_CONFIG_REG_0_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
return ((reg_data[0] & CONFIG0_BIT_QE) != 1 ? \
QSPI_STATUS_OK : QSPI_STATUS_ERROR)
#endif // MBED_QSPI_FLASH_W25Q32JV_H
