From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 83642FED3F1 for ; Fri, 24 Apr 2026 16:53:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sNKxoyCsRtJEM962foXVB+HA3HGAMTt3o5cqeBMjCAI=; b=Pr5xKOEEsSK25KVO0MI4tVdeuk RCmJNHOrsjhMhQ1J1h03M56s13Z0sYY1zkVSgEv3Yk59UKmMKX2Nn967HyiLT8nt69prR0ZwNaH8b RVzBoUcNYJu4mUOy3PyPQWSjnk3J+yABs3dziP25KA2y4b2Bsv75hqPBsX0nsd86WMoeyaIxGMVEh WJL6KC2wZ98j1V+a73W4nL0EzIW5bGkhkhN+36wY31soMK8P5tHok2FASPzdzPZKXwpDFe+pMkSE0 CyVQnheSRD5LNrct2/75aH+4zfLF16F4ju3ejG8rZyElrCgDtZdVpVWEdQn+nSDeggUOjzQpENLPr gE+bCYvw==; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 23/04/2026 19:59, Shah, Tanmay wrote: > Ack, I will rename it to xlnx,auto-boot. > >>> >>>>> + type: boolean >>>>> + description: remote core is either already running or ready to boot >>>> >>>> And why is this property of a board? >>>> >>> >>> Not sure what indicates it is? The property is under remoteproc child >>> device that is SOC level property. Remote core is on same SOC wher linux >>> core is running. >> >> So it is implied by SoC compatible? Please provide some arguments why it >> cannot be implied by the SoC compatible. I gave you one way out, but if >> you disagree then no problem. >> > > So on some SoC, the bootloader supports loading and starting of the > remote processor. But it is totally user's choice. User can choose to > load & start one core of a cluster via bootloader and leave another core > powered-off. > That is why it is not possible to decide based on SoC compatible. OK. The problem is that "user" is a bit vague and usually user choice goes to user-space. The property will be set or unset for ALL of given boards. So all of the DTS->DTB. That's why it should be clear why all such boards should behave like you described. If this is truly user, as in user-space, choice, then DT is not the way. > > If we don't want to make it a device-tree property then I can implement > in a different way. New way will detect if the remote is running or not > via EMMI/SCMI call to the firmware, and take a decision based on that. > If this new way works, then I don't think we need auto-boot property at all. > > Let me know your thoughts. This works for me and solves my questions from DT point of view, but I cannot judge whether this makes sense for you. Best regards, Krzysztof