From 33fa05fe39e3df339c36ce0c71d05cbfb846107b Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Fri, 27 Nov 2020 10:31:56 +0800 Subject: [PATCH] PCI: rockchip: dw: Add LTSSM dump for debug Change-Id: Ia53158d65e12047ab3a1b225635f274e0d30c36e Signed-off-by: Shawn Lin --- drivers/pci/controller/dwc/pcie-dw-rockchip.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-dw-rockchip.c b/drivers/pci/controller/dwc/pcie-dw-rockchip.c index 6454ed3837b9..3576e4518259 100644 --- a/drivers/pci/controller/dwc/pcie-dw-rockchip.c +++ b/drivers/pci/controller/dwc/pcie-dw-rockchip.c @@ -411,11 +411,13 @@ static int rk_pcie_establish_link(struct dw_pcie *pci) for (retries = 0; retries < 1000000; retries++) { if (dw_pcie_link_up(pci)) { - dev_info(pci->dev, "PCIe Link up\n"); + dev_info(pci->dev, "PCIe Link up, LTSSM is 0x%x\n", + rk_pcie_readl_apb(rk_pcie, PCIE_CLIENT_LTSSM_STATUS)); return 0; } - dev_info_ratelimited(pci->dev, "PCIe Linking...\n"); + dev_info_ratelimited(pci->dev, "PCIe Linking... LTSSM is 0x%x\n", + rk_pcie_readl_apb(rk_pcie, PCIE_CLIENT_LTSSM_STATUS)); mdelay(1000); }