The Linux kernel fsl-ls1088a.dtsi disables (status="disabled") all PCIe controllers by default, with the bootloader (i.e U-Boot) enabling the appropriate controllers (specified by the board reset control word/RCW) by FDT fixup.
However, U-Boot needs these controllers to be enabled to be usable, which we can add in the u-boot only dtsi.
Signed-off-by: Mathew McBride matt@traverse.com.au --- arch/arm/dts/fsl-ls1088a-u-boot.dtsi | 13 +++++++++++++ arch/arm/dts/fsl-ls1088a.dtsi | 3 +++ 2 files changed, 16 insertions(+)
diff --git a/arch/arm/dts/fsl-ls1088a-u-boot.dtsi b/arch/arm/dts/fsl-ls1088a-u-boot.dtsi index 3eb45d47cd..ac30b813ff 100644 --- a/arch/arm/dts/fsl-ls1088a-u-boot.dtsi +++ b/arch/arm/dts/fsl-ls1088a-u-boot.dtsi @@ -16,3 +16,16 @@ &duart1 { bootph-all; }; + +&pcie1 { + status = "okay"; +}; + +&pcie2 { + status = "okay"; +}; + +&pcie3 { + status = "okay"; +}; + diff --git a/arch/arm/dts/fsl-ls1088a.dtsi b/arch/arm/dts/fsl-ls1088a.dtsi index 71d652c818..85316ddb66 100644 --- a/arch/arm/dts/fsl-ls1088a.dtsi +++ b/arch/arm/dts/fsl-ls1088a.dtsi @@ -104,6 +104,7 @@ <0000 0 0 3 &gic 0 0 0 111 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic 0 0 0 112 IRQ_TYPE_LEVEL_HIGH>; iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */ + status = "disabled"; };
pcie_ep1: pcie-ep@3400000 { @@ -140,6 +141,7 @@ <0000 0 0 3 &gic 0 0 0 116 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic 0 0 0 117 IRQ_TYPE_LEVEL_HIGH>; iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */ + status = "disabled"; };
pcie_ep2: pcie-ep@3500000 { @@ -175,6 +177,7 @@ <0000 0 0 3 &gic 0 0 0 121 IRQ_TYPE_LEVEL_HIGH>, <0000 0 0 4 &gic 0 0 0 122 IRQ_TYPE_LEVEL_HIGH>; iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */ + status = "disabled"; };
pcie_ep3: pcie-ep@3600000 {