From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 21 Oct 2024 10:00:31 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1t2nL5-006zRA-1F for lore@lore.pengutronix.de; Mon, 21 Oct 2024 10:00:31 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1t2nL4-00027T-P1 for lore@pengutronix.de; Mon, 21 Oct 2024 10:00:31 +0200 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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XdgSEUX710yNf8Uhg91L29U4R5SgIkTkJWD6Ap8UCMQ=; b=nvS3IWgVbHjxGKt6EWKm3g8SNY e5/6d6GEmkV3t7cklkc1tKTOea+xqIzu4fe/h/WMw1vEzqaQIk0FTJ/fte0JWjVOy9Kyn9RyxBVxz 8kE/G0f9fHa377qKkmlUkoLwvPbSBd9FqMcch+2rmhP/afBDQoyPcPx7dDNVICl+M8QGTsV6wvJNu nSoLHXxTGO4/jTYRpY8OTiAUhhVEBgmopo1q8gpfuvC29246JuPFpVfLAHTTmC7sY1qf3U4G2C4Go FiOCLMsVbyBYtbApQBWDDxQIiN+Ozdxw0+HAEXCKR5BbRzJ//vhnJYfv45us1MzinyrzTY/V2nj38 2MlwzwCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t2nKO-00000006TCs-42Ei; Mon, 21 Oct 2024 07:59:48 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t2nIa-00000006Syr-1f3O for barebox@lists.infradead.org; Mon, 21 Oct 2024 07:57:58 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1t2nIX-0001jb-Af; Mon, 21 Oct 2024 09:57:53 +0200 Received: from [2a0a:edc0:2:b01:1d::c5] (helo=pty.whiteo.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1t2nIX-000elj-0U; Mon, 21 Oct 2024 09:57:53 +0200 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1t2nIX-005fRG-0D; Mon, 21 Oct 2024 09:57:53 +0200 Date: Mon, 21 Oct 2024 09:57:53 +0200 From: Sascha Hauer To: Ahmad Fatoum Cc: "open list:BAREBOX" Message-ID: References: <20241021-arm-layerscape-tfa-v1-0-0980697b6f66@pengutronix.de> <20241021-arm-layerscape-tfa-v1-9-0980697b6f66@pengutronix.de> <3435d9d4-2a71-48b6-879a-1dbf043ff6d7@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3435d9d4-2a71-48b6-879a-1dbf043ff6d7@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241021_005756_456210_133A0C96 X-CRM114-Status: GOOD ( 20.72 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 9/9] ARM: Layerscape: LS1046a: add PSCI node X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hi Ahmad, On Mon, Oct 21, 2024 at 09:33:23AM +0200, Ahmad Fatoum wrote: > Hello Sascha, > > On 21.10.24 09:21, Sascha Hauer wrote: > > Unlike other SoCs the LS1046a upstream dtsi files do not have a PSCI > > node. Add one for barebox and Linux to find the PSCI support. > > > > Signed-off-by: Sascha Hauer > > I am wondering how powering CPUs on and off worked before? > I see no enable-method = "spin-table" in the kernel DT for the SoC. The PPA is PSCI compatible. The barebox PPA adapter called of_psci_fixup() to register a PSCI node. > > Anyhow, barebox should probably fixup enable-method = "psci" into each > CPU in /cpus in the kernel DT. This is already done in of_psci_fixup(). The PSCI node in the barebox dts is only needed to probe the psci-client driver which in turn creates/fixups the PSCI node for the kernel. We already know that we started the TF-A. I thought about using this knowledge to register the PSCI client driver without explicitly creating a device node for it, but on the other hand there isn't too much gain in doing so, so I just created a node for now. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |