1 files changed, 42 insertions, 19 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index ffaded8f2df7..ecc33f6789e3 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -418,19 +418,15 @@ static void dw_pcie_host_request_msg_tlp_res(struct dw_pcie_rp *pp)
 	}
 }
 
-int dw_pcie_host_init(struct dw_pcie_rp *pp)
+static int dw_pcie_host_get_resources(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct device *dev = pci->dev;
-	struct device_node *np = dev->of_node;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct resource_entry *win;
-	struct pci_host_bridge *bridge;
 	struct resource *res;
 	int ret;
 
-	raw_spin_lock_init(&pp->lock);
-
 	ret = dw_pcie_get_resources(pci);
 	if (ret)
 		return ret;
@@ -448,20 +444,43 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp)
 	if (IS_ERR(pp->va_cfg0_base))
 		return PTR_ERR(pp->va_cfg0_base);
 
-	bridge = devm_pci_alloc_host_bridge(dev, 0);
-	if (!bridge)
-		return -ENOMEM;
-
-	pp->bridge = bridge;
-
 	/* Get the I/O range from DT */
-	win = resource_list_first_type(&bridge->windows, IORESOURCE_IO);
+	win = resource_list_first_type(&pp->bridge->windows, IORESOURCE_IO);
 	if (win) {
 		pp->io_size = resource_size(win->res);
 		pp->io_bus_addr = win->res->start - win->offset;
 		pp->io_base = pci_pio_to_address(win->res->start);
 	}
 
+	/*
+	 * visconti_pcie_cpu_addr_fixup() uses pp->io_base, so we have to
+	 * call dw_pcie_parent_bus_offset() after setting pp->io_base.
+	 */
+	pci->parent_bus_offset = dw_pcie_parent_bus_offset(pci, "config",
+							   pp->cfg0_base);
+	return 0;
+}
+
+int dw_pcie_host_init(struct dw_pcie_rp *pp)
+{
+	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
+	struct device *dev = pci->dev;
+	struct device_node *np = dev->of_node;
+	struct pci_host_bridge *bridge;
+	int ret;
+
+	raw_spin_lock_init(&pp->lock);
+
+	bridge = devm_pci_alloc_host_bridge(dev, 0);
+	if (!bridge)
+		return -ENOMEM;
+
+	pp->bridge = bridge;
+
+	ret = dw_pcie_host_get_resources(pp);
+	if (ret)
+		return ret;
+
 	/* Set default bus ops */
 	bridge->ops = &dw_pcie_ops;
 	bridge->child_ops = &dw_child_pcie_ops;
@@ -548,6 +567,8 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp)
 	if (pp->ops->post_init)
 		pp->ops->post_init(pp);
 
+	dwc_pcie_debugfs_init(pci);
+
 	return 0;
 
 err_stop_link:
@@ -572,6 +593,8 @@ void dw_pcie_host_deinit(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 
+	dwc_pcie_debugfs_deinit(pci);
+
 	pci_stop_root_bus(pp->bridge->bus);
 	pci_remove_root_bus(pp->bridge->bus);
 
@@ -616,7 +639,7 @@ static void __iomem *dw_pcie_other_conf_map_bus(struct pci_bus *bus,
 		type = PCIE_ATU_TYPE_CFG1;
 
 	atu.type = type;
-	atu.cpu_addr = pp->cfg0_base;
+	atu.parent_bus_addr = pp->cfg0_base - pci->parent_bus_offset;
 	atu.pci_addr = busdev;
 	atu.size = pp->cfg0_size;
 
@@ -641,7 +664,7 @@ static int dw_pcie_rd_other_conf(struct pci_bus *bus, unsigned int devfn,
 
 	if (pp->cfg0_io_shared) {
 		atu.type = PCIE_ATU_TYPE_IO;
-		atu.cpu_addr = pp->io_base;
+		atu.parent_bus_addr = pp->io_base - pci->parent_bus_offset;
 		atu.pci_addr = pp->io_bus_addr;
 		atu.size = pp->io_size;
 
@@ -667,7 +690,7 @@ static int dw_pcie_wr_other_conf(struct pci_bus *bus, unsigned int devfn,
 
 	if (pp->cfg0_io_shared) {
 		atu.type = PCIE_ATU_TYPE_IO;
-		atu.cpu_addr = pp->io_base;
+		atu.parent_bus_addr = pp->io_base - pci->parent_bus_offset;
 		atu.pci_addr = pp->io_bus_addr;
 		atu.size = pp->io_size;
 
@@ -736,7 +759,7 @@ static int dw_pcie_iatu_setup(struct dw_pcie_rp *pp)
 
 		atu.index = i;
 		atu.type = PCIE_ATU_TYPE_MEM;
-		atu.cpu_addr = entry->res->start;
+		atu.parent_bus_addr = entry->res->start - pci->parent_bus_offset;
 		atu.pci_addr = entry->res->start - entry->offset;
 
 		/* Adjust iATU size if MSG TLP region was allocated before */
@@ -758,7 +781,7 @@ static int dw_pcie_iatu_setup(struct dw_pcie_rp *pp)
 		if (pci->num_ob_windows > ++i) {
 			atu.index = i;
 			atu.type = PCIE_ATU_TYPE_IO;
-			atu.cpu_addr = pp->io_base;
+			atu.parent_bus_addr = pp->io_base - pci->parent_bus_offset;
 			atu.pci_addr = pp->io_bus_addr;
 			atu.size = pp->io_size;
 
@@ -902,13 +925,13 @@ static int dw_pcie_pme_turn_off(struct dw_pcie *pci)
 	atu.size = resource_size(pci->pp.msg_res);
 	atu.index = pci->pp.msg_atu_index;
 
-	atu.cpu_addr = pci->pp.msg_res->start;
+	atu.parent_bus_addr = pci->pp.msg_res->start - pci->parent_bus_offset;
 
 	ret = dw_pcie_prog_outbound_atu(pci, &atu);
 	if (ret)
 		return ret;
 
-	mem = ioremap(atu.cpu_addr, pci->region_align);
+	mem = ioremap(pci->pp.msg_res->start, pci->region_align);
 	if (!mem)
 		return -ENOMEM;