PCH_SPSR
spsr = io_remap_addr + PCH_SPSR;
spsr = io_remap_addr + PCH_SPSR;
pch_spi_writereg(data->host, PCH_SPSR,
pch_spi_readreg(data->host, PCH_SPSR));
pch_spi_writereg(data->host, PCH_SPSR,
pch_spi_readreg(data->host, PCH_SPSR));