AMD_SPI_ADDR32CTRL_REG
u32 val = amd_spi_readreg32(amd_spi, AMD_SPI_ADDR32CTRL_REG);
amd_spi_writereg32(amd_spi, AMD_SPI_ADDR32CTRL_REG, val | BIT(0));
amd_spi_writereg32(amd_spi, AMD_SPI_ADDR32CTRL_REG, val & ~BIT(0));