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MT7628/MT7688 SPI Flash 防寫

MT7628 # spi id
SPI_REG_OPCODE=0x9f
_device id: c2 20 18 0 0
MT7628 # spi sr read
SPI_REG_OPCODE=0x5
sr=0x0
MT7628 # spi sr write bc
trying write sr=0xbc
SPI_REG_OPCODE=0x6
SPI_REG_OPCODE=0xbc000001
SPI_REG_OPCODE=0x4
SPI_REG_OPCODE=0x5
sr=0xbc
MT7628 # spi sr read
SPI_REG_OPCODE=0x5
sr=0xbc
MT7628 # spi sr read
SPI_REG_OPCODE=0x5
sr=0xbc
MT7628 # spi sr write 0
trying write sr=0x0
SPI_REG_OPCODE=0x6
SPI_REG_OPCODE=0x1
SPI_REG_OPCODE=0x4
SPI_REG_OPCODE=0x5
sr=0x0
MT7628 # spi sr read
SPI_REG_OPCODE=0x5
sr=0x0
MT7628 #