linux-kernel - Re: [PATCH 2/3] arm64: dts: ti: k3-j784s4-mcu-wakeup: Add bootph-pre-ram property for SPL nodes

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Message-ID: <ef020531-e7b9-4666-0ea2-dd5c4803234b@ti.com>
Date:   Mon, 7 Aug 2023 22:55:43 +0530
From:   Apurva Nandan <a-nandan@...com>
To:     Nishanth Menon <nm@...com>
CC:     "Kumar, Udit" <u-kumar1@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Hari Nagalla <hnagalla@...com>
Subject: Re: [PATCH 2/3] arm64: dts: ti: k3-j784s4-mcu-wakeup: Add
 bootph-pre-ram property for SPL nodes


On 07/08/23 22:51, Nishanth Menon wrote:
> On 22:43-20230807, Apurva Nandan wrote:
> [..]
>
>>> mcu_timer0: timer@...00000 should be part of your list.
>> Maybe you are referring to mcu_timer1. mcu_timer1 will be a part of
>> u-boot.dtsi as we need to edit
>> the node for removing k3_clks and power-domains properties from it. So we
>> should add bootph-pre-ram
>> there itself in uboot.dtsi as the node will be already there.
> a) you need the timer even before talking to anything - u-boot needs it
> for basic delay - so add the pre-ram property.
> b) what you are doing in u-boot currently a hack - am625 in u-boot got
> it fixed the right way - follow the model then you dont need the hackery
> with deleting clock and power-domains properties.
>
Okay, thanks!