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charset="utf-8" From: Vidya Sagar Pre-silicon simulation showed the Endpoint initiating speed change after secondary bus reset; the HW team recommended disabling this feature in the Endpoint. Disable direct speed change for the Endpoint so it does not initiate speed change after physical layer link up at gen1, leaving speed change ownership with the host. Fixes: c57247f940e8 ("PCI: tegra: Add support for PCIe endpoint mode in Teg= ra194") Reviewed-by: Jon Hunter Tested-by: Jon Hunter Signed-off-by: Vidya Sagar Signed-off-by: Manikanta Maddireddy --- Changes V8: Fix commit mesaage Changes V1 -> V7: None drivers/pci/controller/dwc/pcie-tegra194.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/contr= oller/dwc/pcie-tegra194.c index e0b17ad3052d..0be701e58238 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1805,6 +1805,10 @@ static void pex_ep_event_pex_rst_deassert(struct teg= ra_pcie_dw *pcie) =20 reset_control_deassert(pcie->core_rst); =20 + val =3D dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL); + val &=3D ~PORT_LOGIC_SPEED_CHANGE; + dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, val); + if (pcie->update_fc_fixup) { val =3D dw_pcie_readl_dbi(pci, CFG_TIMER_CTRL_MAX_FUNC_NUM_OFF); val |=3D 0x1 << CFG_TIMER_CTRL_ACK_NAK_SHIFT; --=20 2.34.1