openwrt/target/linux/layerscape/patches-4.4/8235-pci-layerscape-fix-pci-lut-offset-issue.patch
Hauke Mehrtens 88ca6390ea kernel: bump to 4.4.40
Refresh patches on all 4.4 supported platforms.
Compile & run tested: lantiq/xrx200

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-01-06 19:38:55 +01:00

34 lines
1020 B
Diff

From 2f3ea65dc8909cbf4116bd74b3dea8d25749508f Mon Sep 17 00:00:00 2001
From: Zhao Qiang <qiang.zhao@nxp.com>
Date: Wed, 23 Nov 2016 11:29:45 +0800
Subject: [PATCH 235/238] pci/layerscape: fix pci lut offset issue
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
---
drivers/pci/host/pci-layerscape.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -158,16 +158,11 @@ 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, offset;
+ u32 state;
- 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;
+ state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>
+ pcie->drvdata->ltssm_shift) &
+ LTSSM_STATE_MASK;
if (state < LTSSM_PCIE_L0)
return 0;