From 7ff8432c272e3556461b7c9daad8156ae446e812 Mon Sep 17 00:00:00 2001 From: Andrew Davis Date: Fri, 28 Oct 2022 09:24:15 -0500 Subject: [PATCH] arm64: dts: ti: k3-am65: Enable PCIe nodes at the board level 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 Signed-off-by: Nishanth Menon Tested-by: Jan Kiszka Reviewed-by: Bryan Brattlof Link: https://lore.kernel.org/r/20221028142417.10642-10-afd@ti.com --- arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 13 +------------ arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 4 ++++ arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 16 ---------------- 3 files changed, 5 insertions(+), 28 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi index c431d67..dd7c6ae 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi @@ -632,15 +632,8 @@ }; }; -&pcie0_rc { - status = "disabled"; -}; - -&pcie0_ep { - status = "disabled"; -}; - &pcie1_rc { + status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&minipcie_pins_default>; @@ -650,10 +643,6 @@ reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>; }; -&pcie1_ep { - status = "disabled"; -}; - &mailbox0_cluster0 { interrupts = <436>; diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi index 9cdde6e..9081c79 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi @@ -720,6 +720,7 @@ interrupts = ; msi-map = <0x0 &gic_its 0x0 0x10000>; device_type = "pci"; + status = "disabled"; }; pcie0_ep: pcie-ep@5500000 { @@ -733,6 +734,7 @@ max-link-speed = <2>; dma-coherent; interrupts = ; + status = "disabled"; }; pcie1_rc: pcie@5600000 { @@ -753,6 +755,7 @@ interrupts = ; msi-map = <0x0 &gic_its 0x10000 0x10000>; device_type = "pci"; + status = "disabled"; }; pcie1_ep: pcie-ep@5600000 { @@ -766,6 +769,7 @@ max-link-speed = <2>; dma-coherent; interrupts = ; + status = "disabled"; }; mcasp0: mcasp@2b00000 { diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts index bf6a6fe..a61060c 100644 --- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts +++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts @@ -415,22 +415,6 @@ status = "disabled"; }; -&pcie0_rc { - status = "disabled"; -}; - -&pcie0_ep { - status = "disabled"; -}; - -&pcie1_rc { - status = "disabled"; -}; - -&pcie1_ep { - status = "disabled"; -}; - &mailbox0_cluster0 { interrupts = <436>; -- 2.7.4