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From 1b23a4e0f03063f823ea38065c1106f62a56b408 Mon Sep 17 00:00:00 2001
From: Mingkai Hu <mingkai.hu@nxp.com>
Date: Mon, 7 Nov 2016 15:03:51 +0800
Subject: [PATCH 230/238] layerscape/pci: fix linkup issue
commit e6612d785198abbb39142e2acb63f9bff26ab718
[context adjustment]
Signed-off-by: Mingkai Hu <mingkai.hu@nxp.com>
Integrated-by: Zhao Qiang <qiang.zhao@nxp.com>
---
drivers/pci/host/pci-layerscape.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -158,11 +158,16 @@ static void ls1021_pcie_host_init(struct
static int ls_pcie_link_up(struct pcie_port *pp)
{
struct ls_pcie *pcie = to_ls_pcie(pp);
- u32 state;
+ u32 state, offset;
- state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>
- pcie->drvdata->ltssm_shift) &
- LTSSM_STATE_MASK;
+ if (of_get_property(pp->dev->of_node, "fsl,lut_diff", NULL))
+ offset = 0x407fc;
+ else
+ offset = PCIE_LUT_DBG;
+
+ state = (ioread32(pcie->lut + offset) >>
+ pcie->drvdata->ltssm_shift) &
+ LTSSM_STATE_MASK;
if (state < LTSSM_PCIE_L0)
return 0;
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