From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Date: Mon, 28 Aug 2017 18:52:55 +0800
Subject: PCI: layerscape: Add class code and multifunction fixups for ls1021a
Git-commit: 5da39bf0919b6e129010f1554e639940be5bcdce
Patch-mainline: v4.14-rc1
References: fate#326536, fate#326532
The current code depends on class code and multifunction fixups done by the
bootloader. Perform these fixups in ls1021_pcie_host_init() to remove this
dependency.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/pci/dwc/pci-layerscape.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c
index c16940044ed6..3aa34214643c 100644
--- a/drivers/pci/dwc/pci-layerscape.c
+++ b/drivers/pci/dwc/pci-layerscape.c
@@ -134,6 +134,11 @@ static int ls1021_pcie_host_init(struct pcie_port *pp)
dw_pcie_setup_rc(pp);
+ iowrite32(1, pci->dbi_base + PCIE_DBI_RO_WR_EN);
+ ls_pcie_fix_class(pcie);
+ ls_pcie_clear_multifunction(pcie);
+ iowrite32(0, pci->dbi_base + PCIE_DBI_RO_WR_EN);
+
ls_pcie_drop_msg_tlp(pcie);
return 0;
--
2.11.0