SPI_CONTROL
ddbwritel(dev, 1, tag | SPI_CONTROL);
if (reg_wait(dev, tag | SPI_CONTROL, 4))
tag | SPI_CONTROL);
tag | SPI_CONTROL);
if (reg_wait(dev, tag | SPI_CONTROL, 4))
ddbwritel(dev, 0, tag | SPI_CONTROL);
ddbwritel(dev, 1, tag | SPI_CONTROL);
if (reg_wait(dev, tag | SPI_CONTROL, 4))
tag | SPI_CONTROL);
if (reg_wait(dev, tag | SPI_CONTROL, 4))
ddbwritel(dev, 0, tag | SPI_CONTROL);