sdk: add support for gd25xx nor flash
Signed-off-by: liangkangnan <liangkangnan@163.com>verilator
liangkangnan
parent
26a221a132
commit
ccadad262f
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@ -29,6 +29,7 @@ C_SRCS += $(BSP_DIR)/lib/i2c.c
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C_SRCS += $(BSP_DIR)/lib/spi.c
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C_SRCS += $(BSP_DIR)/lib/pinmux.c
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C_SRCS += $(BSP_DIR)/lib/flash_n25q.c
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C_SRCS += $(BSP_DIR)/lib/flash_gd25q.c
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C_SRCS += $(BSP_DIR)/lib/flash_ctrl.c
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LINKER_SCRIPT := $(BSP_DIR)/link_rom.lds
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@ -0,0 +1,47 @@
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#ifndef _FLASH_GD25Q_H_
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#define _FLASH_GD25Q_H_
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#define GD25Q_PAGE_SIZE (256)
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#define GD25Q_PAGE_TO_ADDR(page) ((page) << 8)
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#define GD25Q_SECTOR_TO_ADDR(sector) ((sector) << 12)
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#define CMD_WRITE_STATUS_REG1 (0x01)
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#define CMD_WRITE_STATUS_REG2 (0x31)
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#define CMD_WRITE_STATUS_REG3 (0x11)
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#define CMD_READ_STATUS_REG1 (0x05)
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#define CMD_READ_STATUS_REG2 (0x35)
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#define CMD_READ_STATUS_REG3 (0x15)
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#define CMD_PAGE_PROGRAM (0x02)
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#define CMD_QUAD_PAGE_PROGRAM (0x32)
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#define CMD_READ (0x03)
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#define CMD_QUAD_IO_FAST_READ (0xeb)
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#define CMD_WRITE_ENABLE (0x06)
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#define CMD_WRITE_DISABLE (0x04)
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#define CMD_SECTOR_ERASE (0x20)
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#define CMD_BLOCK32K_ERASE (0x52)
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#define CMD_BLOCK64K_ERASE (0xd8)
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#define CMD_READ_ID (0x90)
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#define CMD_QUAD_IO_READ_ID (0x94)
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#define DUMMY_CNT (0x4)
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typedef struct {
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uint8_t manf_id;
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uint8_t dev_id;
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} gd25q_id_t;
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void flash_gd25q_init(uint32_t controller, uint16_t clk_div);
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void flash_gd25q_set_spi_mode(uint8_t mode);
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void flash_gd25q_set_spi_controller(uint32_t controller);
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gd25q_id_t flash_gd25q_read_id();
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void flash_gd25q_write_enable(uint8_t en);
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uint8_t flash_gd25q_read_reg(uint8_t cmd);
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void flash_gd25q_write_reg(uint8_t cmd, uint8_t data);
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uint8_t flash_gd25q_is_busy();
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void flash_gd25q_read(uint8_t data[], uint32_t len, uint32_t addr);
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void flash_gd25q_sector_erase(uint32_t sector);
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void flash_gd25q_page_program(uint8_t data[], uint32_t len, uint32_t page);
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void flash_gd25q_enable_quad_mode(uint8_t en);
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#endif
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@ -0,0 +1,244 @@
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#include <stdint.h>
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#include "../../bsp/include/spi.h"
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#include "../../bsp/include/rvic.h"
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#include "../../bsp/include/utils.h"
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#include "../../bsp/include/flash_gd25q.h"
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/* GD25Q127特点:
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* 1.总共128Mb大小，即16MB
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* 2.总共64K页，每页大小256字节
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* 3.总共4K扇区，每个扇区大小为4K字节，16页
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* 4.总共256个block，每个block大小为64K字节，16个扇区
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* 5.擦除的最小单位是扇区，编程(写)的最小单位是页，读的最小单位是字节
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*/
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static uint8_t current_spi_mode;
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static uint32_t spi_base_addr;
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void flash_gd25q_init(uint32_t controller, uint16_t clk_div)
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{
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spi_base_addr = controller;
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spi_set_clk_div(spi_base_addr, clk_div);
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spi_set_role_mode(spi_base_addr, SPI_ROLE_MODE_MASTER);
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_cp_mode(spi_base_addr, SPI_CPOL_0_CPHA_0);
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spi_set_msb_first(spi_base_addr);
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spi_master_set_ss_delay(spi_base_addr, 1);
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spi_set_ss_level(spi_base_addr, 1);
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spi_set_ss_ctrl_by_sw(spi_base_addr, 1);
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spi_set_enable(spi_base_addr, 1);
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}
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void flash_gd25q_set_spi_mode(uint8_t mode)
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{
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current_spi_mode = mode;
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}
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void flash_gd25q_set_spi_controller(uint32_t controller)
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{
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spi_base_addr = controller;
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}
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// 写使能
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// 擦除或者编程或者写寄存器之前必须先发送写使能命令
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void flash_gd25q_write_enable(uint8_t en)
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{
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uint8_t cmd;
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if (en)
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cmd = CMD_WRITE_ENABLE;
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else
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cmd = CMD_WRITE_DISABLE;
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_set_ss_level(spi_base_addr, 1);
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spi_set_spi_mode(spi_base_addr, current_spi_mode);
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}
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// 读寄存器
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uint8_t flash_gd25q_read_reg(uint8_t cmd)
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{
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uint8_t data;
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_read_bytes(spi_base_addr, &data, 1);
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spi_set_ss_level(spi_base_addr, 1);
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spi_set_spi_mode(spi_base_addr, current_spi_mode);
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return data;
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}
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// 写寄存器
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void flash_gd25q_write_reg(uint8_t cmd, uint8_t data)
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{
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_write_bytes(spi_base_addr, &data, 1);
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spi_set_ss_level(spi_base_addr, 1);
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spi_set_spi_mode(spi_base_addr, current_spi_mode);
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}
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// 是否正在擦除或者编程
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uint8_t flash_gd25q_is_busy()
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{
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if (flash_gd25q_read_reg(CMD_READ_STATUS_REG1) & 0x1)
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return 1;
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else
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return 0;
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}
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// 读数据
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// addr: 0, 1, 2, ...
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void flash_gd25q_read(uint8_t data[], uint32_t len, uint32_t addr)
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{
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uint8_t cmd, i;
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uint8_t tran_addr[4];
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tran_addr[0] = (addr >> 16) & 0xff;
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tran_addr[1] = (addr >> 8) & 0xff;
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tran_addr[2] = (addr >> 0) & 0xff;
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tran_addr[3] = 0x00;
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if (current_spi_mode == SPI_MODE_STANDARD) {
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cmd = CMD_READ;
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_write_bytes(spi_base_addr, tran_addr, 3);
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spi_master_read_bytes(spi_base_addr, data, len);
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spi_set_ss_level(spi_base_addr, 1);
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} else {
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cmd = CMD_QUAD_IO_FAST_READ;
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// 标准模式发送CMD
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_set_spi_mode(spi_base_addr, SPI_MODE_QUAD);
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// QSPI模式发送ADDR
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spi_master_write_bytes(spi_base_addr, tran_addr, 4);
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for (i = 0; i < (DUMMY_CNT >> 1); i++)
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spi_master_read_bytes(spi_base_addr, data, 1);
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spi_reset_rxfifo(spi_base_addr);
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spi_master_read_bytes(spi_base_addr, data, len);
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spi_set_ss_level(spi_base_addr, 1);
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}
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}
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static void sector_erase(uint8_t cmd, uint32_t addr)
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{
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uint8_t tran_addr[3];
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flash_gd25q_write_enable(1);
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tran_addr[0] = (addr >> 16) & 0xff;
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tran_addr[1] = (addr >> 8) & 0xff;
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tran_addr[2] = (addr >> 0) & 0xff;
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_write_bytes(spi_base_addr, tran_addr, 3);
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spi_set_ss_level(spi_base_addr, 1);
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while (flash_gd25q_is_busy());
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flash_gd25q_write_enable(0);
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spi_set_spi_mode(spi_base_addr, current_spi_mode);
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}
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// 扇区擦除
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// sector，第几个扇区: 0 ~ N
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void flash_gd25q_sector_erase(uint32_t sector)
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{
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sector_erase(CMD_SECTOR_ERASE, GD25Q_SECTOR_TO_ADDR(sector));
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}
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// 页编程
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// page，第几页: 0 ~ N
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void flash_gd25q_page_program(uint8_t data[], uint32_t len, uint32_t page)
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{
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uint8_t tran_addr[3];
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uint8_t cmd;
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uint32_t addr;
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flash_gd25q_write_enable(1);
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addr = GD25Q_PAGE_TO_ADDR(page);
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tran_addr[0] = (addr >> 16) & 0xff;
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tran_addr[1] = (addr >> 8) & 0xff;
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tran_addr[2] = (addr >> 0) & 0xff;
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if (current_spi_mode == SPI_MODE_STANDARD)
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cmd = CMD_PAGE_PROGRAM;
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else
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cmd = CMD_QUAD_PAGE_PROGRAM;
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spi_set_ss_level(spi_base_addr, 0);
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spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_write_bytes(spi_base_addr, tran_addr, 3);
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spi_set_spi_mode(spi_base_addr, current_spi_mode);
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spi_master_write_bytes(spi_base_addr, data, len);
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spi_set_ss_level(spi_base_addr, 1);
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while (flash_gd25q_is_busy());
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flash_gd25q_write_enable(0);
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}
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// 使能QUAD SPI模式
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void flash_gd25q_enable_quad_mode(uint8_t en)
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{
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uint8_t data;
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flash_gd25q_write_enable(1);
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data = flash_gd25q_read_reg(CMD_READ_STATUS_REG2);
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if (en) {
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data |= 1 << 1;
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} else {
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data &= ~(1 << 1);
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}
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flash_gd25q_write_reg(CMD_WRITE_STATUS_REG2, data);
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flash_gd25q_write_enable(0);
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}
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// 读flash ID
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gd25q_id_t flash_gd25q_read_id()
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{
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gd25q_id_t id;
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uint8_t cmd;
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uint8_t tran_addr[3];
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uint8_t data[2];
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tran_addr[0] = 0x00;
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tran_addr[1] = 0x00;
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tran_addr[2] = 0x00;
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cmd = CMD_READ_ID;
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spi_set_ss_level(spi_base_addr, 0);
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spi_master_write_bytes(spi_base_addr, &cmd, 1);
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spi_master_write_bytes(spi_base_addr, tran_addr, 3);
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spi_master_read_bytes(spi_base_addr, data, 2);
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spi_set_ss_level(spi_base_addr, 1);
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id.manf_id = data[0];
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id.dev_id = data[1];
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return id;
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}
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@ -0,0 +1,128 @@
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#include <stdint.h>
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#include "../../bsp/include/uart.h"
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#include "../../bsp/include/spi.h"
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#include "../../bsp/include/xprintf.h"
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#include "../../bsp/include/utils.h"
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#include "../../bsp/include/rvic.h"
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#include "../../bsp/include/pinmux.h"
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#include "../../bsp/include/sim_ctrl.h"
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#include "../../bsp/include/flash_gd25q.h"
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#define BUFFER_SIZE (64)
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uint8_t program_data[BUFFER_SIZE];
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uint8_t read_data[BUFFER_SIZE];
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// 标准三线SPI测试
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static void standard_spi_test()
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{
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uint16_t i;
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gd25q_id_t id;
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xprintf("Standard SPI test started...\n");
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flash_gd25q_set_spi_mode(SPI_MODE_STANDARD);
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// 读flash ID
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id = flash_gd25q_read_id();
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xprintf("manf id = 0x%2x\n", id.manf_id);
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xprintf("dev id = 0x%2x\n", id.dev_id);
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// 初始化要编程的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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program_data[i] = i + 1;
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// 擦除第0个扇区
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flash_gd25q_sector_erase(0);
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xprintf("program data: \n");
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// 打印要编程的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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xprintf("0x%x\n", program_data[i]);
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// 编程第1页
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flash_gd25q_page_program(program_data, BUFFER_SIZE, 1);
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// 读第1页
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flash_gd25q_read(read_data, BUFFER_SIZE, GD25Q_PAGE_TO_ADDR(1));
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xprintf("read data: \n");
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// 打印读出来的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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xprintf("0x%x\n", read_data[i]);
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for (i = 0; i < BUFFER_SIZE; i++) {
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if (program_data[i] != read_data[i]) {
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xprintf("test failed!!!\n");
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return;
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}
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}
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xprintf("Standard SPI test succ...\n");
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}
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// QSPI测试
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static void quad_spi_test()
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{
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uint16_t i;
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xprintf("\nQuad SPI test started...\n");
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// 使能QSPI模式
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flash_gd25q_enable_quad_mode(1);
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flash_gd25q_set_spi_mode(SPI_MODE_QUAD);
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// 初始化要编程的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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program_data[i] = i + 2;
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// 擦除第1个扇区
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flash_gd25q_sector_erase(1);
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xprintf("program data: \n");
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// 打印要编程的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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xprintf("0x%x\n", program_data[i]);
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// 编程第16页
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flash_gd25q_page_program(program_data, BUFFER_SIZE, 16);
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// 读第16页
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flash_gd25q_read(read_data, BUFFER_SIZE, GD25Q_PAGE_TO_ADDR(16));
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xprintf("read data: \n");
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// 打印读出来的数据
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for (i = 0; i < BUFFER_SIZE; i++)
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xprintf("0x%x\n", read_data[i]);
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// 失能QSPI模式
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flash_gd25q_enable_quad_mode(0);
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spi_set_spi_mode(SPI0, SPI_MODE_STANDARD);
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flash_gd25q_set_spi_mode(SPI_MODE_STANDARD);
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for (i = 0; i < BUFFER_SIZE; i++) {
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if (program_data[i] != read_data[i]) {
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xprintf("test failed!!!\n");
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return;
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}
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}
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xprintf("Quad SPI test succ...\n");
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}
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int main()
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{
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// UART引脚配置
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pinmux_set_io0_func(IO0_UART0_TX);
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pinmux_set_io3_func(IO3_UART0_RX);
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// SPI引脚配置
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pinmux_set_io10_func(IO10_SPI_CLK);
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pinmux_set_io11_func(IO11_SPI_SS);
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pinmux_set_io12_func(IO12_SPI_DQ0);
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pinmux_set_io13_func(IO13_SPI_DQ1);
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pinmux_set_io14_func(IO14_SPI_DQ2);
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pinmux_set_io15_func(IO15_SPI_DQ3);
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uart_init(UART0, uart0_putc);
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// 115200bps
|
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uart_set_baud_div(UART0, 0x68);
|
||||
flash_gd25q_init(SPI0, 5);
|
||||
|
||||
standard_spi_test();
|
||||
quad_spi_test();
|
||||
|
||||
while (1);
|
||||
}
|
||||
Loading…
Reference in New Issue