int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
{
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
- unsigned int offset;
+ unsigned int offset, ptm_cap_base;
unsigned int nbars;
u8 hdr_type;
u32 reg;
}
offset = dw_pcie_ep_find_ext_capability(pci, PCI_EXT_CAP_ID_REBAR);
+ ptm_cap_base = dw_pcie_ep_find_ext_capability(pci, PCI_EXT_CAP_ID_PTM);
dw_pcie_dbi_ro_wr_en(pci);
dw_pcie_writel_dbi(pci, offset + PCI_REBAR_CAP, 0x0);
}
+ /*
+ * PTM responder capability can be disabled only after disabling
+ * PTM root capability.
+ */
+ if (ptm_cap_base) {
+ dw_pcie_dbi_ro_wr_en(pci);
+ reg = dw_pcie_readl_dbi(pci, ptm_cap_base + PCI_PTM_CAP);
+ reg &= ~PCI_PTM_CAP_ROOT;
+ dw_pcie_writel_dbi(pci, ptm_cap_base + PCI_PTM_CAP, reg);
+
+ reg = dw_pcie_readl_dbi(pci, ptm_cap_base + PCI_PTM_CAP);
+ reg &= ~(PCI_PTM_CAP_RES | PCI_PTM_GRANULARITY_MASK);
+ dw_pcie_writel_dbi(pci, ptm_cap_base + PCI_PTM_CAP, reg);
+ dw_pcie_dbi_ro_wr_dis(pci);
+ }
+
dw_pcie_setup(pci);
dw_pcie_dbi_ro_wr_dis(pci);