SPI_CONFIG_CNTL
tmp = RREG32(SPI_CONFIG_CNTL);
WREG32(SPI_CONFIG_CNTL, tmp);
WREG32(SPI_CONFIG_CNTL, 0);
case SPI_CONFIG_CNTL:
WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
WREG32(SPI_CONFIG_CNTL, DISABLE_INTERP_1);
WREG32(SPI_CONFIG_CNTL, 0);
case SPI_CONFIG_CNTL: