New file |
| | |
| | | /********************************************************************************* |
| | | * Copyright: (C) 2023 LingYun IoT System Studio. All Rights Reserved. |
| | | * Author: Guo Wenxue <guowenxue@gmail.com> |
| | | * |
| | | * Description: This file is W25Qxx SPI Norflash driver on RaspberryPi 40Pin. |
| | | * |
| | | * W25QXX RaspberryPi 40Pin |
| | | * VCC <---> 3.3V(Pin#1) |
| | | * CS <---> CS(Pin#24) |
| | | * DO <---> MISO(Pin#21) |
| | | * GND <---> GND(Pin#9) |
| | | * CLK <---> SCLK(Pin#23) |
| | | * DI <---> MOSI(Pin#19) |
| | | * |
| | | ********************************************************************************/ |
| | | |
| | | #include <stdint.h> |
| | | #include <unistd.h> |
| | | #include <stdio.h> |
| | | #include <stdlib.h> |
| | | #include <string.h> |
| | | #include <errno.h> |
| | | #include <getopt.h> |
| | | #include <fcntl.h> |
| | | #include <time.h> |
| | | #include <sys/ioctl.h> |
| | | #include <linux/ioctl.h> |
| | | #include <sys/stat.h> |
| | | #include <linux/types.h> |
| | | #include <linux/spi/spidev.h> |
| | | |
| | | #include "w25qflash.h" |
| | | |
| | | #define CONFIG_SPINOR_DEBUG |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | #include <stdio.h> |
| | | #define spinor_print(format,args...) printf(format, ##args) |
| | | #else |
| | | #define spinor_print(format,args...) do{} while(0) |
| | | #endif |
| | | |
| | | #define spinor_Delay(delay) usleep(delay*1000) |
| | | |
| | | /*+-----------------------+ |
| | | *| Entry Functions | |
| | | *+-----------------------+*/ |
| | | |
| | | void dump_buf(const char *prompt, char *buf, size_t len); |
| | | |
| | | int main (int argc, char **argv) |
| | | { |
| | | spinor_test(); |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | |
| | | /*+-----------------------+ |
| | | *| SPI API Functions | |
| | | *+-----------------------+*/ |
| | | |
| | | #define SPI_DEV "/dev/spidev0.0" |
| | | #define SPI_BITS 8 |
| | | #define SPI_MODE 0//(SPI_CPHA|SPI_CPOL) |
| | | #define SPI_SPEED 500000 |
| | | |
| | | #define SPI_DUMMY_BYTE 0xA5 |
| | | |
| | | void spinor_dev_init(struct spi_info *spi) |
| | | { |
| | | uint8_t bits = SPI_BITS; |
| | | uint32_t speed = SPI_SPEED; |
| | | uint32_t mode = SPI_MODE; |
| | | uint32_t request; |
| | | int ret; |
| | | |
| | | spi->hspi = open(SPI_DEV, O_RDWR); |
| | | if (spi->hspi < 0) |
| | | { |
| | | spinor_print("ERROR: open device %s failure: %s\r\n", SPI_DEV, strerror(errno)); |
| | | return ; |
| | | } |
| | | |
| | | /* |
| | | * spi mode |
| | | */ |
| | | request = mode; |
| | | if( ioctl(spi->hspi, SPI_IOC_WR_MODE32, &mode) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't set spi mode\n"); |
| | | return ; |
| | | } |
| | | |
| | | if( ioctl(spi->hspi, SPI_IOC_RD_MODE32, &mode) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't get spi mode\n"); |
| | | return ; |
| | | } |
| | | |
| | | if (request != mode) |
| | | { |
| | | spinor_print("WARNING: device does not support requested mode 0x%x\n", request); |
| | | } |
| | | |
| | | /* |
| | | * bits per word |
| | | */ |
| | | if( ioctl(spi->hspi, SPI_IOC_WR_BITS_PER_WORD, &bits) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't set bits per word"); |
| | | return ; |
| | | } |
| | | |
| | | if( ioctl(spi->hspi, SPI_IOC_RD_BITS_PER_WORD, &bits) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't get bits per word"); |
| | | return ; |
| | | } |
| | | |
| | | /* |
| | | * max speed hz |
| | | */ |
| | | if( ioctl(spi->hspi, SPI_IOC_WR_MAX_SPEED_HZ, &speed) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't set max speed hz"); |
| | | return ; |
| | | } |
| | | |
| | | if( ioctl(spi->hspi, SPI_IOC_RD_MAX_SPEED_HZ, &speed) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't get max speed hz"); |
| | | return ; |
| | | } |
| | | |
| | | printf("spi mode: 0x%x\n", mode); |
| | | printf("bits per word: %u\n", bits); |
| | | printf("max speed: %u Hz (%u kHz)\n", speed, speed/1000); |
| | | } |
| | | |
| | | void spi_cs_enable(struct spi_info *spi) |
| | | { |
| | | /* |
| | | * No need set CS in Linux because the device name /dev/spi0.0 |
| | | * will choose the first slave device, second slave is spi0.1 |
| | | */ |
| | | (void)0; |
| | | } |
| | | |
| | | void spi_cs_disable(struct spi_info *spi) |
| | | { |
| | | (void)0; |
| | | } |
| | | |
| | | void spi_xcmd(struct spi_info *spi, uint8_t command) |
| | | { |
| | | uint8_t rxbyte; |
| | | struct spi_ioc_transfer tr = { |
| | | .tx_buf = (unsigned long)&command, |
| | | .rx_buf = (unsigned long)&rxbyte, |
| | | .len = 1, |
| | | .delay_usecs = 0, |
| | | .speed_hz = SPI_SPEED, |
| | | .bits_per_word = SPI_BITS, |
| | | }; |
| | | |
| | | spi->select(spi); |
| | | |
| | | if( ioctl(spi->hspi, SPI_IOC_MESSAGE(1), &tr) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't send spi message:%s\n", strerror(errno)); |
| | | } |
| | | |
| | | spi->deselect(spi); |
| | | |
| | | return; |
| | | } |
| | | |
| | | void spi_xfer(struct spi_info *spi, uint8_t *send_buf, uint8_t *recv_buf, int bytes) |
| | | { |
| | | struct spi_ioc_transfer tr = { |
| | | .tx_buf = (unsigned long)send_buf, |
| | | .rx_buf = (unsigned long)recv_buf, |
| | | .len = bytes, |
| | | .delay_usecs = 0, |
| | | .speed_hz = SPI_SPEED, |
| | | .bits_per_word = SPI_BITS, |
| | | }; |
| | | |
| | | spi->select(spi); |
| | | |
| | | if( ioctl(spi->hspi, SPI_IOC_MESSAGE(1), &tr) < 0 ) |
| | | { |
| | | spinor_print("ERROR: can't send spi message:%s\n", strerror(errno)); |
| | | } |
| | | |
| | | spi->deselect(spi); |
| | | |
| | | return; |
| | | } |
| | | |
| | | #define SPI_INFO(_hspi, _cs_gpio, _cs_pin) {\ |
| | | .hspi = _hspi, \ |
| | | .select = spi_cs_enable, \ |
| | | .deselect = spi_cs_disable, \ |
| | | .xcmd = spi_xcmd, \ |
| | | .xfer = spi_xfer, \ |
| | | } |
| | | |
| | | static struct spi_info spinor_spi = SPI_INFO(-1, W25Q_CS_PORT, W25Q_CS_PIN); |
| | | |
| | | |
| | | /*+-----------------------+ |
| | | *| W25Q SPI Norflash ID | |
| | | *+-----------------------+*/ |
| | | |
| | | #define W25Q_PAGSIZE 256 /* 1Page=256B */ |
| | | #define W25Q_SECSIZE 4096 /* 1Sector=16Pages=4KB */ |
| | | #define W25Q_BLKSIZE 65536 /* 1Block=16Sector=64KB */ |
| | | |
| | | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) |
| | | |
| | | /* JEDEC ID the 3rd bytes is the storage capacity */ |
| | | #pragma GCC diagnostic ignored "-Wshift-count-overflow" |
| | | #define CAPCITY_ID(id) (1UL<<(id&0xFF)) |
| | | #define NOR_INFO(_name, _jedec_id) \ |
| | | .name = _name, \ |
| | | .jedec_id = _jedec_id, \ |
| | | .block_size = W25Q_BLKSIZE, \ |
| | | .sector_size= W25Q_SECSIZE, \ |
| | | .page_size = W25Q_PAGSIZE, \ |
| | | .capacity = CAPCITY_ID(_jedec_id), \ |
| | | .n_blocks = CAPCITY_ID(_jedec_id)/W25Q_BLKSIZE, \ |
| | | .n_sectors = CAPCITY_ID(_jedec_id)/W25Q_SECSIZE, \ |
| | | .n_pages = CAPCITY_ID(_jedec_id)/W25Q_PAGSIZE, \ |
| | | |
| | | static struct flash_info spinor_ids[] = { |
| | | { NOR_INFO("W25Q512", 0xef4020) }, |
| | | { NOR_INFO("W25Q256", 0xef4019) }, |
| | | { NOR_INFO("W25Q128", 0xef4018) }, |
| | | { NOR_INFO("W25Q64", 0xef4017) }, |
| | | { NOR_INFO("W25Q32", 0xef4016) }, |
| | | { NOR_INFO("W25Q16", 0xef4015) }, |
| | | { NOR_INFO("W25Q80", 0xef4014) }, |
| | | { NOR_INFO("W25Q40", 0xef4013) }, |
| | | { NOR_INFO("W25Q20", 0xef4012) }, |
| | | { NOR_INFO("W25Q10", 0xef4011) }, |
| | | }; |
| | | |
| | | /*+-------------------------------+ |
| | | *| SPI Norflash HighLevel API | |
| | | *+-------------------------------+*/ |
| | | |
| | | /* SPI Norflash API test function */ |
| | | void spinor_test(void) |
| | | { |
| | | spinor_info_t spinor; |
| | | int i; |
| | | uint8_t buf[W25Q_PAGSIZE*2]; |
| | | |
| | | if( spinor_init(&spinor) < 0 ) |
| | | return ; |
| | | |
| | | //spinor_erase_chip(&spinor); |
| | | //spinor_erase_block(&spinor, 1, W25Q_BLKSIZE); |
| | | spinor_erase_sector(&spinor, 1, W25Q_SECSIZE); |
| | | |
| | | memset(buf, 0, sizeof(buf)); |
| | | spinor_read(&spinor, 0, buf, sizeof(buf)); |
| | | dump_buf("<<<Read data after erase:\n", (char *)buf, sizeof(buf)); |
| | | |
| | | /* Read/Write data test on address not page align */ |
| | | for(i=0; i<sizeof(buf); i++) |
| | | buf[i] = i; |
| | | spinor_write(&spinor, 16, buf, W25Q_PAGSIZE); |
| | | |
| | | memset(buf, 0, sizeof(buf)); |
| | | spinor_read(&spinor, 0, buf, W25Q_PAGSIZE*2); |
| | | dump_buf("<<<Read data after write:\n", (char *)buf, sizeof(buf)); |
| | | |
| | | return ; |
| | | } |
| | | |
| | | /* Initial SPI and detect the flash chip. */ |
| | | int spinor_init(struct spinor_info *spinor) |
| | | { |
| | | spinor->spi = &spinor_spi; |
| | | |
| | | spinor_dev_init(spinor->spi); |
| | | |
| | | if( !spinor_detect_by_jedec(spinor) ) |
| | | return -1; |
| | | |
| | | printf("Norflash %s detected, capacity %llu KB, %u blocks, %u sectors, %u pages.\r\n", |
| | | spinor->flash->name, spinor->flash->capacity>>10, |
| | | spinor->flash->n_blocks, spinor->flash->n_sectors, spinor->flash->n_pages); |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* Description: Erase whole flash chip. |
| | | * Reference : P60, 8.2.32 Chip Erase (C7h / 60h) |
| | | */ |
| | | int spinor_erase_chip(struct spinor_info *spinor) |
| | | { |
| | | struct spi_info *spi = spinor->spi; |
| | | |
| | | while (spinor->lock == 1) |
| | | spinor_Delay(1); |
| | | |
| | | spinor->lock = 1; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash EraseChip Begin...\r\n"); |
| | | #endif |
| | | |
| | | spinor_write_enable(spi); |
| | | |
| | | spi->xcmd(spi, SPINOR_OP_CHIP_ERASE); |
| | | spinor_WaitForWriteEnd(spi); |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash EraseChip done.\r\n"); |
| | | #endif |
| | | |
| | | spinor_Delay(10); |
| | | spinor->lock = 0; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* Description: Erase blocks by 64KiB, |
| | | * Reference : P59, 8.2.31 64KB Block Erase with 4-Byte Address (DCh) |
| | | * @address is the erase start physical address, which can be not block alignment such as 0x10001. |
| | | * @size is the erase size, which can be larger than a block such as 4097, and it will erase 2 blocks; |
| | | */ |
| | | int spinor_erase_block(struct spinor_info *spinor, uint32_t address, uint32_t size) |
| | | { |
| | | struct spi_info *spi = spinor->spi; |
| | | struct flash_info *flash = spinor->flash; |
| | | uint32_t block, first, last; |
| | | uint32_t addr; |
| | | uint8_t buf[5]; |
| | | int bytes = 0; |
| | | |
| | | while (spinor->lock == 1) |
| | | spinor_Delay(1); |
| | | |
| | | spinor->lock = 1; |
| | | |
| | | /* find first and last erase block */ |
| | | first = address / flash->block_size; |
| | | last = (address+size-1) / flash->block_size; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Erase %d Bytes Block@0x%x Begin...\r\n", size, address); |
| | | #endif |
| | | |
| | | /* start erase all the blocks */ |
| | | for( block=first; block<=last; block++) |
| | | { |
| | | addr = block * flash->sector_size; |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Erase Block@%x ...\r\n", addr); |
| | | #endif |
| | | spinor_WaitForWriteEnd(spi); |
| | | spinor_write_enable(spi); |
| | | |
| | | if (spinor->flash->n_blocks >= 512 ) /* larger than W25Q256 */ |
| | | { |
| | | buf[bytes++] = SPINOR_OP_BE_4K_4B; |
| | | buf[bytes++] = (addr & 0xFF000000) >> 24; |
| | | } |
| | | else |
| | | { |
| | | buf[bytes++] = SPINOR_OP_BE_4K; |
| | | } |
| | | buf[bytes++] = (addr & 0xFF0000) >> 16 ; |
| | | buf[bytes++] = (addr & 0xFF00) >> 8 ; |
| | | buf[bytes++] = (addr & 0xFF); |
| | | |
| | | spi->xfer(spi, buf, NULL, bytes); |
| | | |
| | | spinor_WaitForWriteEnd(spi); |
| | | } |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash EraseBlock@0x%x done.\r\n", address); |
| | | spinor_Delay(100); |
| | | #endif |
| | | |
| | | spinor_Delay(1); |
| | | spinor->lock = 0; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* Description: Erase sectors by 4KiB |
| | | * Reference : P56, 8.2.28 Sector Erase with 4-Byte Address (21h) |
| | | * @address is the erase start physical address, which can be not sector alignment such as 0x1001. |
| | | * @size is the erase size, which can be larger than a sector such as 4097, and it will erase 2 sectors; |
| | | */ |
| | | int spinor_erase_sector(struct spinor_info *spinor, uint32_t address, uint32_t size) |
| | | { |
| | | struct spi_info *spi = spinor->spi; |
| | | struct flash_info *flash = spinor->flash; |
| | | uint32_t sector, first, last; |
| | | uint32_t addr; |
| | | uint8_t buf[5]; |
| | | int bytes = 0; |
| | | |
| | | while (spinor->lock == 1) |
| | | spinor_Delay(1); |
| | | |
| | | spinor->lock = 1; |
| | | |
| | | /* find first and last erase sector */ |
| | | first = address / flash->sector_size; |
| | | last = (address+size-1) / flash->sector_size; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Erase %d Bytes Sector@0x%x Begin...\r\n", size, address); |
| | | #endif |
| | | |
| | | /* start erase all the sectors */ |
| | | for( sector=first; sector<=last; sector++) |
| | | { |
| | | addr = sector * flash->sector_size; |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Erase Sector@%x ...\r\n", addr); |
| | | #endif |
| | | |
| | | spinor_WaitForWriteEnd(spi); |
| | | spinor_write_enable(spi); |
| | | |
| | | if (spinor->flash->n_blocks >= 512 ) /* larger than W25Q256 */ |
| | | { |
| | | buf[bytes++] = SPINOR_OP_SE_4B; |
| | | buf[bytes++] = (addr & 0xFF000000) >> 24; |
| | | } |
| | | else |
| | | { |
| | | buf[bytes++] = SPINOR_OP_SE; |
| | | } |
| | | buf[bytes++] = (addr & 0xFF0000) >> 16 ; |
| | | buf[bytes++] = (addr & 0xFF00) >> 8 ; |
| | | buf[bytes++] = (addr & 0xFF); |
| | | |
| | | spi->xfer(spi, buf, NULL, bytes); |
| | | |
| | | spinor_WaitForWriteEnd(spi); |
| | | } |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash EraseSector@0x%x done.\r\n", address); |
| | | #endif |
| | | |
| | | spinor_Delay(1); |
| | | spinor->lock = 0; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* P32: 10.2.14 Page Program (02h) */ |
| | | int spinor_write(struct spinor_info *spinor, uint32_t address, uint8_t *data, uint32_t size) |
| | | { |
| | | struct spi_info *spi = spinor->spi; |
| | | struct flash_info *flash = spinor->flash; |
| | | uint32_t page, first, last; |
| | | uint32_t addr, ofset, len; |
| | | uint8_t buf[W25Q_PAGSIZE+5]; |
| | | int bytes = 0; |
| | | |
| | | if( address+size > spinor->flash->capacity ) |
| | | return -1; |
| | | |
| | | while (spinor->lock == 1) |
| | | spinor_Delay(1); |
| | | |
| | | spinor->lock = 1; |
| | | |
| | | /* find first and last write page */ |
| | | first = address / flash->page_size; |
| | | last = (address+size-1) / flash->page_size; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Write %d Bytes to addr@0x%x Begin...\r\n", size, address); |
| | | #endif |
| | | |
| | | /* address in page and offset in buffer */ |
| | | addr = address; |
| | | ofset = 0; |
| | | |
| | | /* start write all the pages */ |
| | | for( page=first; page<=last; page++) |
| | | { |
| | | len = flash->page_size - (addr%flash->page_size); |
| | | len = len > size ? size : len; |
| | | bytes = 0; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash write addr@0x%x, %u bytes\r\n", addr, len); |
| | | #endif |
| | | |
| | | spinor_WaitForWriteEnd(spi); |
| | | spinor_write_enable(spi); |
| | | |
| | | if (spinor->flash->n_blocks >= 512 ) |
| | | { |
| | | buf[bytes++] = SPINOR_OP_PP_4B; |
| | | buf[bytes++] = (addr & 0xFF000000) >> 24; |
| | | } |
| | | else |
| | | { |
| | | buf[bytes++] = SPINOR_OP_PP; |
| | | } |
| | | buf[bytes++] = (addr & 0xFF0000) >> 16 ; |
| | | buf[bytes++] = (addr & 0xFF00) >> 8 ; |
| | | buf[bytes++] = (addr & 0xFF); |
| | | |
| | | /* send command and data */ |
| | | memcpy(&buf[bytes], data+ofset, len); |
| | | bytes += len; |
| | | spi->xfer(spi, buf, NULL, bytes); |
| | | |
| | | spinor_WaitForWriteEnd(spi); |
| | | |
| | | addr += len; |
| | | ofset += len; |
| | | size -= len; |
| | | } |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash WriteByte@0x%x done.\r\n", address); |
| | | #endif |
| | | |
| | | spinor_Delay(1); |
| | | spinor->lock = 0; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* Description: The Fast Read instruction can read the entire memory chip. |
| | | * Reference : P41, 8.2.13 Fast Read with 4-Byte Address (0Ch) |
| | | * @address is the read start physical address, which can be not page alignment such as 0x101. |
| | | * @size is the read size, which can be larger than a page such as 257, and it will read 2 pages; |
| | | */ |
| | | int spinor_read(struct spinor_info *spinor, uint32_t address, uint8_t *data, uint32_t size) |
| | | { |
| | | struct spi_info *spi = spinor->spi; |
| | | uint8_t buf[W25Q_PAGSIZE+6]; |
| | | int bytes = 0; |
| | | int ofset; |
| | | uint32_t addr = address; |
| | | |
| | | if( address+size > spinor->flash->capacity ) |
| | | return -1; |
| | | |
| | | while (spinor->lock == 1) |
| | | spinor_Delay(1); |
| | | |
| | | spinor->lock = 1; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash Read %d Bytes from addr@0x%x Begin...\r\n", size, address); |
| | | #endif |
| | | |
| | | while( size > 0 ) |
| | | { |
| | | bytes = size>W25Q_PAGSIZE ? W25Q_PAGSIZE : size; |
| | | memset(buf, SPI_DUMMY_BYTE, sizeof(buf)); |
| | | ofset = 0; |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash read addr@0x%x, %d bytes\r\n", addr, bytes); |
| | | #endif |
| | | |
| | | /* send instruction and address */ |
| | | if (spinor->flash->n_blocks >= 512 ) |
| | | { |
| | | buf[ofset++] = SPINOR_OP_READ_FAST_4B; |
| | | buf[ofset++] = (addr & 0xFF000000) >> 24; |
| | | } |
| | | else |
| | | { |
| | | buf[ofset++] = SPINOR_OP_READ_FAST; |
| | | } |
| | | buf[ofset++] = (addr & 0xFF0000) >> 16 ; |
| | | buf[ofset++] = (addr & 0xFF00) >> 8 ; |
| | | buf[ofset++] = (addr & 0xFF); |
| | | |
| | | ofset += 1; /* Skip first dummy byte */ |
| | | |
| | | /* Send command and read data out */ |
| | | spi->xfer(spi, buf, buf, ofset+bytes); |
| | | memcpy(data, &buf[ofset], bytes); |
| | | |
| | | size -= bytes; |
| | | addr += bytes; |
| | | data += bytes; |
| | | } |
| | | |
| | | #ifdef CONFIG_SPINOR_DEBUG |
| | | printf("Norflash ReadBytes@0x%x done.\r\n", address); |
| | | #endif |
| | | spinor->lock = 0; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /*+-------------------------------+ |
| | | *| SPI Norflash LowLevel API | |
| | | *+-------------------------------+*/ |
| | | |
| | | /* Detect the norflash by JEDEC ID */ |
| | | int spinor_detect_by_jedec(struct spinor_info *spinor) |
| | | { |
| | | uint32_t jedec_id; |
| | | int i, found = 0; |
| | | |
| | | jedec_id = spinor_read_jedecid(spinor->spi); |
| | | |
| | | for(i=0; i<ARRAY_SIZE(spinor_ids); i++) |
| | | { |
| | | if(spinor_ids[i].jedec_id == jedec_id) |
| | | { |
| | | found = 1; |
| | | spinor->flash = &spinor_ids[i]; |
| | | break; |
| | | } |
| | | } |
| | | |
| | | printf("Detect JEDEC ID[0x%x], Norflash %s found\r\n", jedec_id, found?spinor->flash->name:"not"); |
| | | return found; |
| | | } |
| | | |
| | | /* Description: Read the chipset UNIQUE ID. |
| | | * Reference : P68, 8.2.40 Read Unique ID Number (4Bh) |
| | | */ |
| | | int spinor_read_uniqid(struct spi_info *spi, uint8_t *uniq_id) |
| | | { |
| | | uint8_t i; |
| | | uint8_t buf[13]; /* Instruction(1B) + Dummy(4B) + UID(8B)*/ |
| | | |
| | | if( !uniq_id ) |
| | | return -1; |
| | | |
| | | buf[0] = SPINOR_OP_RDUID; |
| | | spi->xfer(spi, buf, buf, sizeof(buf)); |
| | | |
| | | /* Skip 4 bytes dummy bytes */ |
| | | for (i=0; i<8; i++) |
| | | { |
| | | uniq_id[i] = buf[5+i]; |
| | | } |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | /* Description: Read the chipset JEDEC ID. |
| | | * Reference : P69, 8.2.41 Read JEDEC ID (9Fh) |
| | | */ |
| | | uint32_t spinor_read_jedecid(struct spi_info *spi) |
| | | { |
| | | uint32_t jedec_id = 0x0; |
| | | uint8_t buf[4]; |
| | | |
| | | buf[0] = SPINOR_OP_RDID; |
| | | spi->xfer(spi, buf, buf, sizeof(buf)); |
| | | jedec_id = (buf[1] << 16) | (buf[2] << 8) | buf[3]; |
| | | |
| | | return jedec_id; |
| | | } |
| | | |
| | | /* Description: Write Enable |
| | | * Reference : P31, 8.2.1 Write Enable (06h) |
| | | */ |
| | | void spinor_write_enable(struct spi_info *spi) |
| | | { |
| | | spi->xcmd(spi, SPINOR_OP_WREN); |
| | | |
| | | spinor_Delay(1); |
| | | } |
| | | |
| | | /* Description: Write Disable |
| | | * Reference : P32, 8.2.3 Write Disable (04h) |
| | | */ |
| | | void spinor_write_disable(struct spi_info *spi) |
| | | { |
| | | spi->xcmd(spi, SPINOR_OP_WRDI); |
| | | |
| | | spinor_Delay(1); |
| | | } |
| | | |
| | | /* Description: Read Status Register |
| | | * Reference : P32, 8.2.4 Read Status Register-1 (05h), Status Register-2 (35h) & Status Register-3 (15h) |
| | | */ |
| | | uint8_t spinor_read_status_reg(struct spi_info *spi, uint8_t reg) |
| | | { |
| | | uint8_t cmd[REG_STATUS_MAX] = { SPINOR_OP_RDSR1 , SPINOR_OP_RDSR2, SPINOR_OP_RDSR3 }; /* Status Register 1~3 */ |
| | | uint8_t buf[2]; |
| | | |
| | | if( reg>= REG_STATUS_MAX ) |
| | | return 0xFF; |
| | | |
| | | buf[0] = cmd[reg]; |
| | | buf[1] = SPI_DUMMY_BYTE; |
| | | spi->xfer(spi, buf, buf, sizeof(buf)); |
| | | |
| | | return buf[1]; |
| | | } |
| | | |
| | | /* Description: Write Status Register |
| | | * Reference : P33, 8.2.5 Write Status Register-1 (01h), Status Register-2 (31h) & Status Register-3 (11h) |
| | | */ |
| | | void spinor_write_status_reg(struct spi_info *spi, uint8_t reg, uint8_t value) |
| | | { |
| | | uint8_t cmd[REG_STATUS_MAX] = { SPINOR_OP_WRSR1 , SPINOR_OP_WRSR2, SPINOR_OP_WRSR3 }; /* Status Register 1~3 */ |
| | | uint8_t buf[2]; |
| | | |
| | | if( reg>= REG_STATUS_MAX ) |
| | | return ; |
| | | |
| | | buf[0] = cmd[reg]; |
| | | buf[1] = value; |
| | | spi->xfer(spi, buf, buf, sizeof(buf)); |
| | | } |
| | | |
| | | /* Description: Wait flash program/erase finished by read Status Register for BUSY bit |
| | | * Reference : P15, 7.1 Status Registers |
| | | */ |
| | | void spinor_WaitForWriteEnd(struct spi_info *spi) |
| | | { |
| | | uint8_t buf[2]; |
| | | |
| | | spinor_Delay(1); |
| | | |
| | | do |
| | | { |
| | | buf[0] = SPINOR_OP_RDSR1; |
| | | buf[1] = SPI_DUMMY_BYTE; |
| | | spi->xfer(spi, buf, buf, sizeof(buf)); |
| | | |
| | | spinor_Delay(1); |
| | | } while ((buf[1] & 0x01) == 0x01); |
| | | } |
| | | |
| | | /*+----------------+ |
| | | *| dump_buf | |
| | | *+----------------+*/ |
| | | |
| | | void print_buf(const char *prompt, uint8_t *buf, int size) |
| | | { |
| | | int i; |
| | | |
| | | if( !buf ) |
| | | { |
| | | return ; |
| | | } |
| | | |
| | | if( prompt ) |
| | | { |
| | | printf("%-32s ", prompt); |
| | | } |
| | | |
| | | for(i=0; i<size; i++) |
| | | { |
| | | printf("%02X ", buf[i]); |
| | | } |
| | | printf("\r\n"); |
| | | |
| | | return ; |
| | | } |
| | | |
| | | #define LINELEN 81 |
| | | #define CHARS_PER_LINE 16 |
| | | static char *print_char = |
| | | " " |
| | | " " |
| | | " !\"#$%&'()*+,-./" |
| | | "0123456789:;<=>?" |
| | | "@ABCDEFGHIJKLMNO" |
| | | "PQRSTUVWXYZ[\\]^_" |
| | | "`abcdefghijklmno" |
| | | "pqrstuvwxyz{|}~ " |
| | | " " |
| | | " " |
| | | " ???????????????" |
| | | "????????????????" |
| | | "????????????????" |
| | | "????????????????" |
| | | "????????????????" |
| | | "????????????????"; |
| | | |
| | | void dump_buf(const char *prompt, char *buf, size_t len) |
| | | { |
| | | int rc; |
| | | int idx; |
| | | char prn[LINELEN]; |
| | | char lit[CHARS_PER_LINE + 2]; |
| | | char hc[4]; |
| | | short line_done = 1; |
| | | |
| | | if( prompt ) |
| | | printf("%s", prompt); |
| | | |
| | | rc = len; |
| | | idx = 0; |
| | | lit[CHARS_PER_LINE] = '\0'; |
| | | |
| | | while (rc > 0) |
| | | { |
| | | if (line_done) |
| | | snprintf(prn, LINELEN, "%08X: ", idx); |
| | | |
| | | do |
| | | { |
| | | unsigned char c = buf[idx]; |
| | | snprintf(hc, 4, "%02X ", c); |
| | | strncat(prn, hc, LINELEN); |
| | | |
| | | lit[idx % CHARS_PER_LINE] = print_char[c]; |
| | | } |
| | | while (--rc > 0 && (++idx % CHARS_PER_LINE != 0)); |
| | | |
| | | line_done = (idx % CHARS_PER_LINE) == 0; |
| | | if (line_done) |
| | | { |
| | | printf("%s %s\r\n", prn, lit); |
| | | } |
| | | } |
| | | |
| | | if (!line_done) |
| | | { |
| | | int ldx = idx % CHARS_PER_LINE; |
| | | lit[ldx++] = print_char[(int)buf[idx]]; |
| | | lit[ldx] = '\0'; |
| | | |
| | | while ((++idx % CHARS_PER_LINE) != 0) |
| | | strncat(prn, " ", sizeof(prn)-strlen(prn)); |
| | | |
| | | printf("%s %s\r\n", prn, lit); |
| | | |
| | | } |
| | | } |