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-rw-r--r--drivers/pci/controller/dwc/pci-dra7xx.c7
-rw-r--r--drivers/pci/controller/dwc/pci-imx6.c8
-rw-r--r--drivers/pci/controller/dwc/pci-keystone.c9
-rw-r--r--drivers/pci/controller/dwc/pci-layerscape-ep.c7
-rw-r--r--drivers/pci/controller/dwc/pcie-artpec6.c13
-rw-r--r--drivers/pci/controller/dwc/pcie-designware-ep.c22
-rw-r--r--drivers/pci/controller/dwc/pcie-designware-plat.c9
-rw-r--r--drivers/pci/controller/dwc/pcie-keembay.c16
-rw-r--r--drivers/pci/controller/dwc/pcie-rcar-gen4.c12
-rw-r--r--drivers/pci/controller/dwc/pcie-uniphier-ep.c13
10 files changed, 90 insertions, 26 deletions
diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 0e406677060d..395042b29ffc 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -467,6 +467,13 @@ static int dra7xx_add_pcie_ep(struct dra7xx_pcie *dra7xx,
return ret;
}
+ ret = dw_pcie_ep_init_registers(ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(ep);
+ return ret;
+ }
+
return 0;
}
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 99a60270b26c..8d28ecc381bc 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1123,6 +1123,14 @@ static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie,
dev_err(dev, "failed to initialize endpoint\n");
return ret;
}
+
+ ret = dw_pcie_ep_init_registers(ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(ep);
+ return ret;
+ }
+
/* Start LTSSM. */
imx6_pcie_ltssm_enable(dev);
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 844de4418724..81ebac520650 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -1286,6 +1286,13 @@ static int ks_pcie_probe(struct platform_device *pdev)
ret = dw_pcie_ep_init(&pci->ep);
if (ret < 0)
goto err_get_sync;
+
+ ret = dw_pcie_ep_init_registers(&pci->ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ goto err_ep_init;
+ }
+
break;
default:
dev_err(dev, "INVALID device type %d\n", mode);
@@ -1295,6 +1302,8 @@ static int ks_pcie_probe(struct platform_device *pdev)
return 0;
+err_ep_init:
+ dw_pcie_ep_deinit(&pci->ep);
err_get_sync:
pm_runtime_put(dev);
pm_runtime_disable(dev);
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index 1f6ee1460ec2..9eb2233e3d7f 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -279,6 +279,13 @@ static int __init ls_pcie_ep_probe(struct platform_device *pdev)
if (ret)
return ret;
+ ret = dw_pcie_ep_init_registers(&pci->ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(&pci->ep);
+ return ret;
+ }
+
return ls_pcie_ep_interrupt_init(pcie, pdev);
}
diff --git a/drivers/pci/controller/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
index 9ed0a9ba7619..a6095561db4a 100644
--- a/drivers/pci/controller/dwc/pcie-artpec6.c
+++ b/drivers/pci/controller/dwc/pcie-artpec6.c
@@ -441,7 +441,18 @@ static int artpec6_pcie_probe(struct platform_device *pdev)
pci->ep.ops = &pcie_ep_ops;
- return dw_pcie_ep_init(&pci->ep);
+ ret = dw_pcie_ep_init(&pci->ep);
+ if (ret)
+ return ret;
+
+ ret = dw_pcie_ep_init_registers(&pci->ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(&pci->ep);
+ return ret;
+ }
+
+ break;
default:
dev_err(dev, "INVALID device type %d\n", artpec6_pcie->mode);
}
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index 761d3012a073..2063cf2049e5 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -821,7 +821,6 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
struct device *dev = pci->dev;
struct platform_device *pdev = to_platform_device(dev);
struct device_node *np = dev->of_node;
- const struct pci_epc_features *epc_features;
INIT_LIST_HEAD(&ep->func_list);
@@ -867,29 +866,8 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
goto err_exit_epc_mem;
}
- if (ep->ops->get_features) {
- epc_features = ep->ops->get_features(ep);
- if (epc_features->core_init_notifier)
- return 0;
- }
-
- /*
- * NOTE:- Avoid accessing the hardware (Ex:- DBI space) before this
- * step as platforms that implement 'core_init_notifier' feature may
- * not have the hardware ready (i.e. core initialized) for access
- * (Ex: tegra194). Any hardware access on such platforms result
- * in system hang.
- */
- ret = dw_pcie_ep_init_registers(ep);
- if (ret)
- goto err_free_epc_mem;
-
return 0;
-err_free_epc_mem:
- pci_epc_mem_free_addr(epc, ep->msi_mem_phys, ep->msi_mem,
- epc->mem->window.page_size);
-
err_exit_epc_mem:
pci_epc_mem_exit(epc);
diff --git a/drivers/pci/controller/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c
index 778588b4be70..ca9b22e654cd 100644
--- a/drivers/pci/controller/dwc/pcie-designware-plat.c
+++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
@@ -145,6 +145,15 @@ static int dw_plat_pcie_probe(struct platform_device *pdev)
pci->ep.ops = &pcie_ep_ops;
ret = dw_pcie_ep_init(&pci->ep);
+ if (ret)
+ return ret;
+
+ ret = dw_pcie_ep_init_registers(&pci->ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(&pci->ep);
+ }
+
break;
default:
dev_err(dev, "INVALID device type %d\n", dw_plat_pcie->mode);
diff --git a/drivers/pci/controller/dwc/pcie-keembay.c b/drivers/pci/controller/dwc/pcie-keembay.c
index 5e8e54f597dd..b2556dbcffb5 100644
--- a/drivers/pci/controller/dwc/pcie-keembay.c
+++ b/drivers/pci/controller/dwc/pcie-keembay.c
@@ -396,6 +396,7 @@ static int keembay_pcie_probe(struct platform_device *pdev)
struct keembay_pcie *pcie;
struct dw_pcie *pci;
enum dw_pcie_device_mode mode;
+ int ret;
data = device_get_match_data(dev);
if (!data)
@@ -430,11 +431,24 @@ static int keembay_pcie_probe(struct platform_device *pdev)
return -ENODEV;
pci->ep.ops = &keembay_pcie_ep_ops;
- return dw_pcie_ep_init(&pci->ep);
+ ret = dw_pcie_ep_init(&pci->ep);
+ if (ret)
+ return ret;
+
+ ret = dw_pcie_ep_init_registers(&pci->ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(&pci->ep);
+ return ret;
+ }
+
+ break;
default:
dev_err(dev, "Invalid device type %d\n", pcie->mode);
return -ENODEV;
}
+
+ return 0;
}
static const struct keembay_pcie_of_data keembay_pcie_rc_of_data = {
diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
index de4bdfaecab3..e155a905fb4f 100644
--- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c
+++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
@@ -416,6 +416,7 @@ static const struct dw_pcie_ep_ops pcie_ep_ops = {
static int rcar_gen4_add_dw_pcie_ep(struct rcar_gen4_pcie *rcar)
{
struct dw_pcie_ep *ep = &rcar->dw.ep;
+ struct device *dev = rcar->dw.dev;
int ret;
if (!IS_ENABLED(CONFIG_PCIE_RCAR_GEN4_EP))
@@ -424,8 +425,17 @@ static int rcar_gen4_add_dw_pcie_ep(struct rcar_gen4_pcie *rcar)
ep->ops = &pcie_ep_ops;
ret = dw_pcie_ep_init(ep);
- if (ret)
+ if (ret) {
rcar_gen4_pcie_ep_deinit(rcar);
+ return ret;
+ }
+
+ ret = dw_pcie_ep_init_registers(ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(ep);
+ rcar_gen4_pcie_ep_deinit(rcar);
+ }
return ret;
}
diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
index 639bc2e12476..0e5e7344de48 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
@@ -399,7 +399,18 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
return ret;
priv->pci.ep.ops = &uniphier_pcie_ep_ops;
- return dw_pcie_ep_init(&priv->pci.ep);
+ ret = dw_pcie_ep_init(&priv->pci.ep);
+ if (ret)
+ return ret;
+
+ ret = dw_pcie_ep_init_registers(&priv->pci.ep);
+ if (ret) {
+ dev_err(dev, "Failed to initialize DWC endpoint registers\n");
+ dw_pcie_ep_deinit(&priv->pci.ep);
+ return ret;
+ }
+
+ return 0;
}
static const struct uniphier_pcie_ep_soc_data uniphier_pro5_data = {