[PATCHv2 4/6] PCI: layerscape: refactor the host_init function

[Zhiqiang Hou <Zhiqiang.Hou@xxxxxxx>]

From: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>

Make the ls1021a's host_init reuse layerscape platform's common
host_init function.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
---
V2:
 - Removed the disable outbound windows code and the remove duplicate class code
   fixup code from this patch.

 drivers/pci/dwc/pci-layerscape.c | 54 ++++++++++++++++++++--------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c
index 09056a6..3533a8c 100644
--- a/drivers/pci/dwc/pci-layerscape.c
+++ b/drivers/pci/dwc/pci-layerscape.c
@@ -107,33 +107,6 @@ static int ls1021_pcie_link_up(struct dw_pcie *pci)
 	return 1;
 }
 
-static void ls1021_pcie_host_init(struct pcie_port *pp)
-{
-	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-	struct ls_pcie *pcie = to_ls_pcie(pci);
-	struct device *dev = pci->dev;
-	u32 index[2];
-
-	pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node,
-						     "fsl,pcie-scfg");
-	if (IS_ERR(pcie->scfg)) {
-		dev_err(dev, "No syscfg phandle specified\n");
-		pcie->scfg = NULL;
-		return;
-	}
-
-	if (of_property_read_u32_array(dev->of_node,
-				       "fsl,pcie-scfg", index, 2)) {
-		pcie->scfg = NULL;
-		return;
-	}
-	pcie->index = index[1];
-
-	dw_pcie_setup_rc(pp);
-
-	ls_pcie_drop_msg_tlp(pcie);
-}
-
 static int ls_pcie_link_up(struct dw_pcie *pci)
 {
 	struct ls_pcie *pcie = to_ls_pcie(pci);
@@ -160,6 +133,33 @@ static void ls_pcie_host_init(struct pcie_port *pp)
 	dw_pcie_dbi_ro_wr_dis(pci);
 
 	ls_pcie_drop_msg_tlp(pcie);
+
+	dw_pcie_setup_rc(pp);
+}
+
+static void ls1021_pcie_host_init(struct pcie_port *pp)
+{
+	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
+	struct ls_pcie *pcie = to_ls_pcie(pci);
+	struct device *dev = pci->dev;
+	u32 index[2];
+
+	pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node,
+						     "fsl,pcie-scfg");
+	if (IS_ERR(pcie->scfg)) {
+		dev_err(dev, "No syscfg phandle specified\n");
+		pcie->scfg = NULL;
+		return;
+	}
+
+	if (of_property_read_u32_array(dev->of_node,
+				       "fsl,pcie-scfg", index, 2)) {
+		pcie->scfg = NULL;
+		return;
+	}
+	pcie->index = index[1];
+
+	ls_pcie_host_init(pp);
 }
 
 static int ls_pcie_msi_host_init(struct pcie_port *pp,
-- 
2.1.0.27.g96db324