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authorHou Zhiqiang <[email protected]>2017-08-28 18:52:55 +0800
committerBjorn Helgaas <[email protected]>2017-08-29 15:29:26 -0500
commit5da39bf0919b6e129010f1554e639940be5bcdce (patch)
tree56e465adcaebba34aed54c33bb0ff76a79969b27
parent02232343349e606c8809e2555985a806d615e4ee (diff)
PCI: layerscape: Add class code and multifunction fixups for ls1021a
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 <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Roy Zang <[email protected]>
-rw-r--r--drivers/pci/dwc/pci-layerscape.c5
1 files changed, 5 insertions, 0 deletions
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;