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arm64: dts: ti: k3-am65: Enable PCIe nodes at the board level

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PCIe nodes defined in the top-level AM65x SoC dtsi files are incomplete
and will not be functional unless they are extended with a SerDes PHY.
And usually only one of the two modes can be used at a time as they
share a SerDes link.

As the PHY and mode is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the PCIe nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20221028142417.10642-10-afd@ti.com
This commit is contained in:
Andrew Davis
2022-10-28 09:24:15 -05:00
committed by Nishanth Menon
parent b08bf4a5c0
commit 7ff8432c27
3 changed files with 5 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
View File

@@ -632,15 +632,8 @@ dpi_out: endpoint {
};
};
&pcie0_rc {
status = "disabled";
};
&pcie0_ep {
status = "disabled";
};
&pcie1_rc {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&minipcie_pins_default>;
@@ -650,10 +643,6 @@ &pcie1_rc {
reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
};
&pcie1_ep {
status = "disabled";
};
&mailbox0_cluster0 {
interrupts = <436>;

4
arch/arm64/boot/dts/ti/k3-am65-main.dtsi
View File

@@ -720,6 +720,7 @@ pcie0_rc: pcie@5500000 {
interrupts = <GIC_SPI 340 IRQ_TYPE_EDGE_RISING>;
msi-map = <0x0 &gic_its 0x0 0x10000>;
device_type = "pci";
status = "disabled";
};
pcie0_ep: pcie-ep@5500000 {
@@ -733,6 +734,7 @@ pcie0_ep: pcie-ep@5500000 {
max-link-speed = <2>;
dma-coherent;
interrupts = <GIC_SPI 340 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
pcie1_rc: pcie@5600000 {
@@ -753,6 +755,7 @@ pcie1_rc: pcie@5600000 {
interrupts = <GIC_SPI 355 IRQ_TYPE_EDGE_RISING>;
msi-map = <0x0 &gic_its 0x10000 0x10000>;
device_type = "pci";
status = "disabled";
};
pcie1_ep: pcie-ep@5600000 {
@@ -766,6 +769,7 @@ pcie1_ep: pcie-ep@5600000 {
max-link-speed = <2>;
dma-coherent;
interrupts = <GIC_SPI 355 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
mcasp0: mcasp@2b00000 {

16
arch/arm64/boot/dts/ti/k3-am654-base-board.dts
View File

@@ -415,22 +415,6 @@ &serdes1 {
status = "disabled";
};
&pcie0_rc {
status = "disabled";
};
&pcie0_ep {
status = "disabled";
};
&pcie1_rc {
status = "disabled";
};
&pcie1_ep {
status = "disabled";
};
&mailbox0_cluster0 {
interrupts = <436>;