CR9B
RegCR9B = viafb_read_reg(VIACR, CR9B);
viafb_write_reg(CR9B, VIACR, 0x01);
viafb_write_reg(CR9B, VIACR, RegCR9B);
viafb_write_reg_mask(CR9B, VIACR,
dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
viafb_write_reg_mask(CR9B, VIACR,
{VIACR, CR9B, 0xFF, 0x07} /* DVI on DVP1 ; DVP1 Clock Skew*/
{VIACR, CR9B, 0xFF, 0x00}
{VIACR, CR9B, 0xFF, 0x00},
{VIACR, CR9B, 0xFF, 0x00}
{VIACR, CR9B, 0xFF, 0x00},