DRA725: After switch WiFI chip from CYPRESS 89459 to NXP AW690, The PCIE signal Quality is not good.

Dear TI experts

     In DRA72x board of our CRS 3.0,the pcie signal is not good，and  the follow is the PCIe eye diagram.  I found the register of PCIEPHYRX_EQUALIZER_REG1 in document 《spruic2d-PCIE.pdf》 could be used adjust the pcie signal quality,but i don't know how to write the register, and what value should be written in register?

     thanks!