linux-kernel - Re: [PATCH v2] arm64: dts: ti: k3-am642-evm-pcie0-ep: Add boot phase tag to "pcie0

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Message-ID: <98e04654-a693-494d-9f60-930b6a4cd84a@ti.com>
Date: Wed, 11 Jun 2025 14:14:03 +0530
From: Vignesh Raghavendra <vigneshr@...com>
To: Hrushikesh Salunke <h-salunke@...com>, <nm@...com>, <kristo@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <s-vadapalli@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <danishanwar@...com>
Subject: Re: [PATCH v2] arm64: dts: ti: k3-am642-evm-pcie0-ep: Add boot phase
 tag to "pcie0_ep"



On 10/06/25 11:19, Hrushikesh Salunke wrote:
> AM64X SoC has one instance of PCIe which is PCIe0. To support PCIe boot
> on AM64X SoC, PCIe0 needs to be in endpoint mode and it needs to be
> functional at all stages of PCIe boot process. Thus add the
> "bootph-all" boot phase tag to "pcie0_ep" device tree node.
> 
> Signed-off-by: Hrushikesh Salunke <h-salunke@...com>
> ---
> This patch is based on commit
> 475c850a7fdd Add linux-next specific files for 20250606
> 
> Changes since v1
> As per feedback from Nishanth, changed the position of "bootph-all"
> tag, according to ordering rules for device tree properties.
> 
> v1 : https://lore.kernel.org/all/20250609115930.w2s6jzg7xii55dlu@speckled/
> 
>  arch/arm64/boot/dts/ti/k3-am642-evm-pcie0-ep.dtso | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-pcie0-ep.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-pcie0-ep.dtso
> index 432751774853..a7e8d4ea98ac 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-evm-pcie0-ep.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-pcie0-ep.dtso
> @@ -46,6 +46,7 @@ pcie0_ep: pcie-ep@...2000 {
>  		max-functions = /bits/ 8 <1>;
>  		phys = <&serdes0_pcie_link>;
>  		phy-names = "pcie-phy";
> +		bootph-all;
>  		ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>;
>  	};
>  };

Are the patches for PCIe boot support merged to U-Boot or such other
bootloader repo?

-- 
Regards
Vignesh
https://ti.com/opensource