The endpoint was left in the config mode after probe, this would mean the core would send configuration requestion retry status (CRS) messages back to the root complex. The conf_en bit should be asserted after probe. This is documented in section 17.5.8.1.2 of the RK3399 TRM. Signed-off-by: Rick Wertenbroek <rick.wertenbroek@xxxxxxxxx> --- drivers/pci/controller/pcie-rockchip-ep.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c index 9b835377b..4c84e403e 100644 --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -623,6 +623,8 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev) ep->irq_pci_addr = ROCKCHIP_PCIE_EP_DUMMY_IRQ_ADDR; + rockchip_pcie_write(rockchip, PCIE_CLIENT_CONF_ENABLE, PCIE_CLIENT_CONFIG); + return 0; err_epc_mem_exit: pci_epc_mem_exit(epc); -- 2.25.1
