diff options
Diffstat (limited to 'drivers/pci/controller/cadence/pcie-cadence-host.c')
| -rw-r--r-- | drivers/pci/controller/cadence/pcie-cadence-host.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c index fb96d37a135c..940c7dd701d6 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-host.c +++ b/drivers/pci/controller/cadence/pcie-cadence-host.c @@ -123,6 +123,14 @@ static int cdns_pcie_retrain(struct cdns_pcie *pcie) return ret; } +static void cdns_pcie_host_enable_ptm_response(struct cdns_pcie *pcie) +{ + u32 val; + + val = cdns_pcie_readl(pcie, CDNS_PCIE_LM_PTM_CTRL); + cdns_pcie_writel(pcie, CDNS_PCIE_LM_PTM_CTRL, val | CDNS_PCIE_LM_TPM_CTRL_PTMRSEN); +} + static int cdns_pcie_host_start_link(struct cdns_pcie_rc *rc) { struct cdns_pcie *pcie = &rc->pcie; @@ -501,6 +509,8 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc) if (rc->quirk_detect_quiet_flag) cdns_pcie_detect_quiet_min_delay_set(&rc->pcie); + cdns_pcie_host_enable_ptm_response(pcie); + ret = cdns_pcie_start_link(pcie); if (ret) { dev_err(dev, "Failed to start link\n"); |