From: "mingkai.hu@xxxxxxx" <mingkai.hu@xxxxxxx>
1. LS1046a PCIe controller has a different LUT_DBG offset.
Available "lut_dbg" is added to ls_pcie_drvdata to describe
this difference.
2. Match LS1046 PCIe compatible
Signed-off-by: Minghuan Lian <Minghuan.Lian@xxxxxxx>
Signed-off-by: Mingkai Hu <mingkai.hu@xxxxxxx>
---
Documentation/devicetree/bindings/pci/layerscape-pci.txt | 1 +
drivers/pci/host/pci-layerscape.c | 13 ++++++++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index 41e9f55..ee1c72d5 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -15,6 +15,7 @@ Required properties:
- compatible: should contain the platform identifier such as:
"fsl,ls1021a-pcie", "snps,dw-pcie"
"fsl,ls2080a-pcie", "fsl,ls2085a-pcie", "snps,dw-pcie"
+ "fsl,ls1046a-pcie"
- reg: base addresses and lengths of the PCIe controller
- interrupts: A list of interrupt outputs of the controller. Must contain an
entry for each entry in the interrupt-names property.
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index 958187f..8cebf9a 100644
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -41,6 +41,7 @@
struct ls_pcie_drvdata {
u32 lut_offset;
u32 ltssm_shift;
+ u32 lut_dbg;
struct pcie_host_ops *ops;
};
@@ -134,7 +135,7 @@ static int ls_pcie_link_up(struct pcie_port *pp)
struct ls_pcie *pcie = to_ls_pcie(pp);
u32 state;
- state = (ioread32(pcie->lut + PCIE_LUT_DBG) >>
+ state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>
pcie->drvdata->ltssm_shift) &
LTSSM_STATE_MASK;
@@ -196,18 +197,28 @@ static int ls_pcie_msi_host_init(struct pcie_port *pp,
static struct ls_pcie_drvdata ls1043_drvdata = {
.lut_offset = 0x10000,
.ltssm_shift = 24,
+ .lut_dbg = 0x7fc,
+ .ops = &ls_pcie_host_ops,
+};
+
+static struct ls_pcie_drvdata ls1046_drvdata = {
+ .lut_offset = 0x80000,
+ .ltssm_shift = 24,
+ .lut_dbg = 0x407fc,
.ops = &ls_pcie_host_ops,
};
static struct ls_pcie_drvdata ls2080_drvdata = {
.lut_offset = 0x80000,
.ltssm_shift = 0,
+ .lut_dbg = 0x7fc,
.ops = &ls_pcie_host_ops,
};
static const struct of_device_id ls_pcie_of_match[] = {
{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata },
{ .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata },
+ { .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata },
{ .compatible = "fsl,ls2080a-pcie", .data = &ls2080_drvdata },
{ .compatible = "fsl,ls2085a-pcie", .data = &ls2080_drvdata },
{ },
--
1.9.1
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