From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 18 Aug 2022 07:21:39 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oOXyN-002dPQ-VI for lore@lore.pengutronix.de; Thu, 18 Aug 2022 07:21:39 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oOXyL-0000g5-P9 for lore@pengutronix.de; Thu, 18 Aug 2022 07:21:38 +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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=pq/k5WBraocy3XTyVBpM9fOcQtbb7NeAQGzPK0KclK0=; b=RbqZu5nVQ46ixkKgASbjxgYp5H D4TTESnv1ks0PSnIvuwNVDOcZjCGQPYrf2klrES1GZwigp7BWR/zb7PpEk7Z4HLe1cQr9HXg3Cor8 UXi//AHq0SoNuvJFO0slQsYZxFJwm0L1zy1j+QE9bx7vIEwlAs5cvUd7C4NCE0BBHW23vEl+0uxV0 FC9wHNBvptcmiJpg76u/7c20aXECzMt2tZOeTcw/6K4ylpJeyG3PeNnpLW2kXs9l5HOlO8wrJDOYq K2RBERRjLgdEOf7mvcZc1JAN2YJox8oslTRlfuwZuwBdU5ckFRAugg4fIaknlJfLrzc+k8bNb9cZ0 ERCd+sCA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oOXx3-00Fnea-Dh; Thu, 18 Aug 2022 05:20:17 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oOXwn-00Fn3g-2x for barebox@lists.infradead.org; Thu, 18 Aug 2022 05:20:04 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oOXwl-0008Hr-Hf; Thu, 18 Aug 2022 07:19:59 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1oOXwk-000S3m-Ng; Thu, 18 Aug 2022 07:19:58 +0200 Received: from afa by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1oOXwi-008lHt-Ns; Thu, 18 Aug 2022 07:19:56 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: lst@pengutronix.de, ukl@pengutronix.de, Ahmad Fatoum Date: Thu, 18 Aug 2022 07:19:55 +0200 Message-Id: <20220818051955.2088238-11-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220818051955.2088238-1-a.fatoum@pengutronix.de> References: <20220818051955.2088238-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220817_222001_242644_0EBD767A X-CRM114-Status: GOOD ( 11.46 ) 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.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 10/10] RFC: ARM: dts: i.MX8MM: describe standlone feature controller X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Now with i.MX8M feature controller driver support available, define it for the i.MX8MM to ensure the kernel DT does not attempt accessing VPUs and their power domain/blkctrl if barebox knows them to be unavailable. This is needed because the upstream kernel imx8mm.dtsi only describes the full-featured SoC, which can lead to hangs when instantiating drivers for hardware that's unavailable in a less-featureful variant of the SoC. [afa: This is one possibility for the binding. My favourite would be having the ocotp be the feature-controller, see previous commits] Signed-off-by: Ahmad Fatoum --- arch/arm/dts/imx8mm.dtsi | 61 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/arch/arm/dts/imx8mm.dtsi b/arch/arm/dts/imx8mm.dtsi index cdf212820594..bef791739e72 100644 --- a/arch/arm/dts/imx8mm.dtsi +++ b/arch/arm/dts/imx8mm.dtsi @@ -1,8 +1,25 @@ // SPDX-License-Identifier: (GPL-2.0+ OR MIT) + +#include + / { aliases { gpr.reboot_mode = &reboot_mode_gpr; }; + + feat: imx8m-feature-controller { + compatible = "barebox,imx8mm-featctrl"; + #feature-cells = <1>; + barebox,feature-controller; + nvmem-cell-names = "tester4"; + nvmem-cells = <&soc_tester4>; + }; +}; + +&ocotp { + soc_tester4: tester4@14 { + reg = <0x14 4>; + }; }; &pgc_otg1 { @@ -24,3 +41,47 @@ mode-serial = <0x00000010>, <0x40000000>; }; }; + +&A53_1 { + barebox,feature-gates = <&feat IMX8M_FEAT_CPU_DUAL>; +}; + +&A53_2 { + barebox,feature-gates = <&feat IMX8M_FEAT_CPU_QUAD>; +}; + +&A53_3 { + barebox,feature-gates = <&feat IMX8M_FEAT_CPU_QUAD>; +}; + +&gpc { + barebox,feature-gates = <&feat 0>; +}; + +&vpu_g1 { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&vpu_g2 { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&vpu_blk_ctrl { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&pgc_vpumix { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&pgc_vpu_g1 { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&pgc_vpu_g2 { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; + +&pgc_vpu_h1 { + barebox,feature-gates = <&feat IMX8M_FEAT_VPU>; +}; -- 2.30.2