huxi
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
#ifndef _NANDFLASH_H
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#define _NANDFLASH_H
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#include "device/device.h"
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#include "ioctl_cmds.h"
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#include "spi.h"
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#include "printf.h"
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#include "gpio.h"
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#include "device_drive.h"
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#include "malloc.h"
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#define GD_WRITE_ENABLE 0x06
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#define GD_WRITE_DISABLE 0x04
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#define GD_BLOCK_ERASE 0xD8
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#define GD_READ_ID 0x9F
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#define GD_READ_UID 0x4B//only 1Gb
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#define GD_RESET_DEVICE 0xFF
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/*for features*/
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#define GD_GET_FEATURES 0x0F
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#define GD_SET_FEATURES 0x1F
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//<features addr
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#define GD_FEATURES_PROTECT 0xA0
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#define GD_FEATURES 0xB0
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#define GD_GET_STATUS 0xC0
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#define GD_DRIVE_STRENGTH 0xD0
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/*for write*/
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#define GD_PROGRAM_LOAD 0x02
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#define GD_PROGRAM_EXECUTE 0x10
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#define GD_PROGRAM_LOAD_RANDOM_DATA 0x84
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//for write x4
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#define GD_PROGRAM_LOAD_X4 0x32
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#define GD_PROGRAM_LOAD_RANDOM_DATA_X4 0x34//0x34 (1Gb:or 0xc4)
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#define GD_PROGRAM_LOAD_RANDOM_DATA_QUAD_IO 0x72//only 1Gb
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/*for read*/
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#define GD_PAGE_READ_CACHE 0x13
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#define GD_READ_FROM_CACHE 0x03//0x03/0x0b(from cache)
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#define GD_READ_PAGE_CACHE_RANDOM 0x30//only 2Gb cache read(status reg bit7)
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#define GD_READ_PAGE_CACHE_LAST 0x3f//only 2Gb ending of cache read
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//for read x2
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#define GD_READ_FROM_CACHE_X2 0x3B
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#define GD_READ_FROM_CACHE_DUAL_IO 0xBB
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//for read x4
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#define GD_READ_FROM_CACHE_X4 0x6B
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#define GD_READ_FROM_CACHE_QUAD_IO 0xEB
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//for protect
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#define GD_PERMANENT_BLOCK_LOCK_PROTECTION 0x2c//only 2Gb. Permanently protect a specific group of blocks
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#define NAND_OTP_PRT BIT(7)
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#define NAND_OTP_EN BIT(6)
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#define NAND_ECC_EN BIT(4)
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#define NAND_X4_EN BIT(0)
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#define NAND_STATUS_OIP BIT(0)
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#define NAND_STATUS_WEL BIT(1)
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#define NAND_STATUS_E_FAIL BIT(2)
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#define NAND_STATUS_P_FAIL BIT(3)
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#define NAND_STATUS_ECCS (0xf0)
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struct nandflash_dev_platform_data {
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int spi_hw_num; //只支持SPI1或SPI2
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u32 spi_cs_port; //cs的引脚
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u32 spi_read_width; //flash读数据的线宽
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const struct spi_platform_data *spi_pdata;
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u32 start_addr; //分区起始地址
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u32 size; //分区大小，若只有1个分区，则这个参数可以忽略
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};
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#define NANDFLASH_DEV_PLATFORM_DATA_BEGIN(data) \
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const struct nandflash_dev_platform_data data
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#define NANDFLASH_DEV_PLATFORM_DATA_END() \
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};
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void nandflash_test_demo(void);
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extern const struct device_operations nandflash_dev_ops;
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int nand_flash_erase(u32 address);
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int nand_flash_read_page(u16 block, u8 page, u16 offset, u8 *buf, u16 len);
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int nand_flash_read(u32 offset, u8 *buf, u32 len);
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int nand_flash_write(u32 offset, u8 *buf, u32 len);
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int nand_flash_write_page(u16 block, u8 page, u8 *buf, u16 len);
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#endif
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