/* 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_S25FL128S_H
#define MBED_QSPI_FLASH_S25FL128S_H
#define QSPI_FLASH_CHIP_STRING "Cypress S25FL128S"
#define QSPI_FLASH_CYPRESS_S25FL128S
// Command for reading configuration register
#define QSPI_CMD_RDCR0 0x35 // To read Quad (QE) enable bit
// Command for writing status/configuration register
#define QSPI_CMD_WRSR 0x01 // To write Qual (QE) enable bit
// Command for reading status register
#define QSPI_CMD_RDSR 0x05 // To read WIP bit of status register 1
// Command for reading security register
#define QSPI_CMD_RDSCUR 0x2B
// Command for setting Reset Enable
#define QSPI_CMD_RSTEN 0x66
// Command for setting Reset
#define QSPI_CMD_RST 0xF0 //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 575000 // 575 ms
// general wait max time [us]
#define QSPI_WAIT_MAX_TIME 100000 // 100 ms
// Commands for writing (page programming)
#define QSPI_CMD_WRITE_1IO 0x02 // 1-1-1 mode
#define QSPI_CMD_WRITE_1I4O 0x32 // 1-1-4 mode // 1-4-4 is not supported by S25FL512S
// write operations max time [us] (datasheet max time + 15%)
#define QSPI_PAGE_PROG_MAX_TIME 800 // 800 us
#define QSPI_PAGE_SIZE 512 // 512B
#define QSPI_SECTOR_SIZE 262144 // 256kB
#define QSPI_SECTOR_COUNT 64 // 16 MB
// 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 - dual I/O
#define QSPI_CMD_READ_1I2O 0x3B // 1-1-2 mode - dual output
#define QSPI_CMD_READ_4IO 0xEB // 1-4-4 mode - quad I/O
#define QSPI_CMD_READ_1I4O 0x6B // 1-1-4 mode - quad output
// Alt (mode) value for quad I/O read
#define QSPI_ALT_READ_4IO 0x01 // 1-4-4 mode only
#define QSPI_READ_1IO_DUMMY_CYCLE 0
#define QSPI_READ_FAST_DUMMY_CYCLE 8
#define QSPI_READ_2IO_DUMMY_CYCLE 4 // dual I/O
#define QSPI_READ_1I2O_DUMMY_CYCLE 8 // dual output
#define QSPI_READ_4IO_DUMMY_CYCLE 6 // quad I/O - 2 cycles for Mode or Alt (4 bits per cycle x 2 cycles = 1 byte) + 4 dummy cycles
#define QSPI_READ_1I4O_DUMMY_CYCLE 8 // quad output
// Commands for erasing
#define QSPI_CMD_ERASE_SECTOR 0xD8 // 256kB
#define QSPI_CMD_ERASE_CHIP 0x60 // or 0xC7
// erase operations max time [us] (datasheet max time + 15%)
#define QSPI_ERASE_SECTOR_MAX_TIME 750000 // 1.15*650 ~ 750 ms
// max frequency for basic rw operation (for fast mode)
#define QSPI_COMMON_MAX_FREQUENCY 50000000
#define QSPI_STATUS_REG_SIZE 1
#define QSPI_CONFIG_REG_0_SIZE 1
#define QSPI_SECURITY_REG_SIZE 1
#define QSPI_MAX_REG_SIZE 2
// 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) //
#define STATUS_BIT_BP1 (1 << 3) //
#define STATUS_BIT_BP2 (1 << 4) //
#define STATUS_BIT_BP3 (1 << 5) //
#define STATUS_BIT_QE (1 << 1) // Quad Enable
#define STATUS_BIT_SRWD (1 << 7) // status register write protect
// configuration register 0
// bit 0, 1, 2, 4, 5, 7 reserved
#define CONFIG0_BIT_TB (1 << 3) // Top/Bottom area protect
#define CONFIG0_BIT_DC (1 << 6) // Dummy Cycle
// configuration register 1
// bit 0, 2, 3, 4, 5, 6, 7 reserved
#define CONFIG1_BIT_LH (1 << 1) // 0 = Ultra Low power mode, 1 = High performance mode
#define EXTENDED_SPI_ENABLE() \
\
const int32_t reg_size = QSPI_STATUS_REG_SIZE + QSPI_CONFIG_REG_0_SIZE; \
uint8_t reg_data[reg_size] = { 0 }; \
\
if (read_register(STATUS_REG, reg_data, \
QSPI_STATUS_REG_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
if (read_register(CONFIG_REG0, reg_data + QSPI_STATUS_REG_SIZE, \
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[1] |= STATUS_BIT_QE; \
if (write_register(QSPI_CMD_WRSR, reg_data, \
reg_size, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
WAIT_FOR(WRSR_MAX_TIME, qspi); \
\
memset(reg_data, 0, QSPI_STATUS_REG_SIZE); \
if (read_register(CONFIG_REG0, reg_data, \
QSPI_STATUS_REG_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
return ((reg_data[0] & STATUS_BIT_QE) != 0 ? \
QSPI_STATUS_OK : QSPI_STATUS_ERROR)
#define EXTENDED_SPI_DISABLE() \
\
const int32_t reg_size = QSPI_STATUS_REG_SIZE + QSPI_CONFIG_REG_0_SIZE; \
uint8_t reg_data[reg_size] = { 0 }; \
\
if (read_register(STATUS_REG, reg_data, \
QSPI_STATUS_REG_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
if (read_register(CONFIG_REG0, reg_data + QSPI_STATUS_REG_SIZE, \
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[1] &= ~(STATUS_BIT_QE); \
\
if (write_register(QSPI_CMD_WRSR, reg_data, \
reg_size, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
WAIT_FOR(WRSR_MAX_TIME, qspi); \
\
reg_data[0] = 0; \
if (read_register(CONFIG_REG0, reg_data, \
QSPI_STATUS_REG_SIZE, qspi) != QSPI_STATUS_OK) { \
return QSPI_STATUS_ERROR; \
} \
\
return ((reg_data[0] & STATUS_BIT_QE) == 0 ? \
QSPI_STATUS_OK : QSPI_STATUS_ERROR)
#endif // MBED_QSPI_FLASH_S25FL128S_H
