Hardcode the PCIe config SID table value. This is needed to avoid random MHI failure observed during reboot on SM8250. Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx> [mani: stripped out unnecessary settings and ported for upstream] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> --- drivers/pci/controller/dwc/pcie-qcom.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index ca8ad354e09d..50748016ce96 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -57,6 +57,7 @@ #define PCIE20_PARF_SID_OFFSET 0x234 #define PCIE20_PARF_BDF_TRANSLATE_CFG 0x24C #define PCIE20_PARF_DEVICE_TYPE 0x1000 +#define PCIE20_PARF_BDF_TO_SID_TABLE_N 0x2000 #define PCIE20_ELBI_SYS_CTRL 0x04 #define PCIE20_ELBI_SYS_CTRL_LT_ENABLE BIT(0) @@ -1290,6 +1291,9 @@ static int qcom_pcie_host_init(struct pcie_port *pp) if (ret) goto err; + writel(0x0, pcie->parf + PCIE20_PARF_BDF_TO_SID_TABLE_N); + writel(0x01000100, pcie->parf + PCIE20_PARF_BDF_TO_SID_TABLE_N + 0x054); + return 0; err: qcom_ep_reset_assert(pcie); -- 2.17.1
