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authorHou Zhiqiang2019-08-20 07:29:01 +0000
committerLorenzo Pieralisi2019-08-22 18:25:55 +0100
commit4035ff36a6e0a07a1f0b0609520e17bd69a74c8b (patch)
tree9b4308cb3b141303bc7bc31a0ac33b05021a563f
parent568adba9eb201875bc561745e0f19b831b7e2bbc (diff)
arm64: dts: fsl: Remove num-lanes property from PCIe nodes
Remove the num-lanes property to avoid the driver setting the link width. On FSL Layerscape SoCs, the number of lanes assigned to PCIe controller is not fixed, it is determined by the selected SerDes protocol in the RCW (Reset Configuration Word). The PCIe link training is completed automatically through the selected SerDes protocol - the link width set-up is updated by hardware after power on reset, so the num-lanes property is not needed for Layerscape PCIe. The current num-lanes property was added erroneously, which actually indicates the maximum lanes the PCIe controller can support up to, instead of the lanes assigned to the PCIe controller. The link width set by SerDes protocol will be overridden by the num-lanes property, hence the subsequent re-training will fail when the assigned lanes do not match the value in the num-lanes property. Remove the property to fix the issue Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com>
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi1
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi3
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi6
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi3
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi4
5 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index ec6257a5b251..119c597ca867 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -486,7 +486,6 @@
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
- num-lanes = <4>;
num-viewport = <2>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index 71d9ed9ff985..c084c7a4b6a6 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -677,7 +677,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -704,7 +703,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <2>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -731,7 +729,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <2>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index b0ef08b090dd..d4c1da3d4bde 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -649,7 +649,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <8>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -671,7 +670,6 @@
reg-names = "regs", "addr_space";
num-ib-windows = <6>;
num-ob-windows = <8>;
- num-lanes = <2>;
status = "disabled";
};
@@ -687,7 +685,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <2>;
num-viewport = <8>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -709,7 +706,6 @@
reg-names = "regs", "addr_space";
num-ib-windows = <6>;
num-ob-windows = <8>;
- num-lanes = <2>;
status = "disabled";
};
@@ -725,7 +721,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <2>;
num-viewport = <8>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -747,7 +742,6 @@
reg-names = "regs", "addr_space";
num-ib-windows = <6>;
num-ob-windows = <8>;
- num-lanes = <2>;
status = "disabled";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index dacd8cf03a7f..ce48a2323337 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -452,7 +452,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <256>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x20 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -478,7 +477,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x28 0x00010000 0x0 0x00010000 /* downstream I/O */
@@ -504,7 +502,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <8>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x30 0x00010000 0x0 0x00010000 /* downstream I/O */
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index 3ace91945b72..d4993a2b404f 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -634,7 +634,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
msi-parent = <&its>;
@@ -656,7 +655,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
msi-parent = <&its>;
@@ -678,7 +676,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <8>;
num-viewport = <256>;
bus-range = <0x0 0xff>;
msi-parent = <&its>;
@@ -700,7 +697,6 @@
#size-cells = <2>;
device_type = "pci";
dma-coherent;
- num-lanes = <4>;
num-viewport = <6>;
bus-range = <0x0 0xff>;
msi-parent = <&its>;