Hi Kathiravan, I'm trying to get PCIe working on a IPQ6018 based board with mainline kernel. Downstream Codeaurora v5.4 kernel PCIe works nicely on that board. I forward ported the pcie, phy, and DT patches to v5.12-rc7. For some reason qcom_pcie_init_2_9_0() hangs on first access to dbi_base registers (specifically PCIE30_GEN3_RELATED_OFF). Any idea where to look? Thanks, baruch -- ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@xxxxxxxxxx - tel: +972.52.368.4656, http://www.tkos.co.il -