RSPI_SPCR
rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) | SPCR_SPE, RSPI_SPCR);
rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) & ~SPCR_SPE, RSPI_SPCR);
rspi_write8(rspi, SPCR_MSTR, RSPI_SPCR);
rspi_write8(rspi, SPCR_MSTR, RSPI_SPCR);
rspi_write8(rspi, SPCR_MSTR, RSPI_SPCR);
rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) | enable, RSPI_SPCR);
rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) & ~disable, RSPI_SPCR);
spcr = rspi_read8(rspi, RSPI_SPCR);
rspi_write8(rspi, spcr, RSPI_SPCR);
rzv2h_rspi_reg_rmw(rspi, RSPI_SPCR, RSPI_SPCR_SPE, 0);
rzv2h_rspi_reg_rmw(rspi, RSPI_SPCR, RSPI_SPCR_SPE, 1);
writel(conf32, rspi->base + RSPI_SPCR);