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 smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5E80CC433EF for ; Wed, 27 Apr 2022 23:36:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id 236BBC385B0; Wed, 27 Apr 2022 23:36:33 +0000 (UTC) Received: from hall.aurel32.net (hall.aurel32.net [195.154.113.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.kernel.org (Postfix) with ESMTPS id 6E1AAC385A9; Wed, 27 Apr 2022 23:36:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org 6E1AAC385A9 Authentication-Results: smtp.kernel.org; dmarc=none (p=none dis=none) header.from=aurel32.net Authentication-Results: smtp.kernel.org; spf=none smtp.mailfrom=aurel32.net DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=aurel32.net ; s=202004.hall; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:From:Reply-To: Subject:Content-ID:Content-Description:X-Debbugs-Cc; bh=mcZNMidGbI3QR8Qt+O+V4KAmj1ZTFMV4YJOKIvJrc/o=; b=uqT/3MFkZUPeR3Qs4qBxKqyiOg aUXNrRn+Im8GqeQ1L3IItVBItxz4twbQl9NAzElSthGHnzk5m5osuEEiYBefel5O8Q0nVVSXHtm3c fa38+wL18hK/yLOH9mGR3fzmIuLTFSWouEit/reb1QPm2LGg1U3+4A5Dbi/ib3ZflnKNLjRrlnSdn 4+xLsT+CiRS7MKdr43dh1Uh4iVVIZTW0edkgFE2iuo/MpCUm6xZwSsfPh5jOtVbofkb6xcQuu8241 zSK1U9TcQBHyVZmm1LBj0w2zGBCVcTLmB9XSAmKpKipfY8uvF8Y0oEAgdeNnspKakp8KX2aIP/L6j SGfuey6w==; Received: from [2a01:e34:ec5d:a741:8a4c:7c4e:dc4c:1787] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1njrCe-006YNT-DN; Thu, 28 Apr 2022 01:36:12 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.95) (envelope-from ) id 1njrCd-0058nF-37; Thu, 28 Apr 2022 01:36:11 +0200 From: Aurelien Jarno To: Arnd Bergmann , Krzysztof Kozlowski , Olof Johansson , Rob Herring , bcm-kernel-feedback-list@broadcom.com List-Id: Cc: Stefan Wahren , Nicolas Saenz Julienne , Linus Walleij , devicetree@vger.kernel.org, Phil Elwell , linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, soc@kernel.org, Aurelien Jarno Subject: [PATCH RESEND 1/2] arm64: dts: broadcom: Enable device-tree overlay support for RPi devices Date: Thu, 28 Apr 2022 01:36:06 +0200 Message-Id: <20220427233607.1225419-2-aurelien@aurel32.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220427233607.1225419-1-aurelien@aurel32.net> References: <20220427233607.1225419-1-aurelien@aurel32.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add the '-@' DTC option for the Raspberry Pi devices. This option populates the '__symbols__' node that contains all the necessary symbols for supporting device-tree overlays (for instance from the firmware or the bootloader) on these devices. The Rasbperry Pi devices are well known for their GPIO header, that allow various "HATs" or other modules do be connected and this enables users to create out-of-tree device-tree overlays for these modules. Please note that this change does increase the size of the resulting DTB by ~40%. For example, with v5.17 increase in size is as follows: bcm2711-rpi-400.dtb 26481 -> 36830 bytes bcm2711-rpi-4-b.dtb 26537 -> 36886 bytes bcm2711-rpi-cm4-io.dtb 26426 -> 36945 bytes bcm2837-rpi-3-a-plus.dtb 14133 -> 19740 bytes bcm2837-rpi-3-b.dtb 14310 -> 20006 bytes bcm2837-rpi-3-b-plus.dtb 14670 -> 20474 bytes bcm2837-rpi-cm3-io3.dtb 13680 -> 19266 bytes Signed-off-by: Aurelien Jarno --- arch/arm64/boot/dts/broadcom/Makefile | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index 5082fcd1fea5..0aa8ee2afdd5 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -1,4 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 + +# Enables support for device-tree overlays +DTC_FLAGS_bcm2711-rpi-400 := -@ +DTC_FLAGS_bcm2711-rpi-4-b := -@ +DTC_FLAGS_bcm2711-rpi-cm4-io := -@ +DTC_FLAGS_bcm2837-rpi-3-a-plus := -@ +DTC_FLAGS_bcm2837-rpi-3-b := -@ +DTC_FLAGS_bcm2837-rpi-3-b-plus := -@ +DTC_FLAGS_bcm2837-rpi-cm3-io3 := -@ +DTC_FLAGS_bcm2837-rpi-zero-2-w := -@ + dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \ bcm2711-rpi-4-b.dtb \ bcm2711-rpi-cm4-io.dtb \ -- 2.35.1 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 D1F13C433EF for ; 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Thu, 28 Apr 2022 01:36:12 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.95) (envelope-from ) id 1njrCd-0058nF-37; Thu, 28 Apr 2022 01:36:11 +0200 From: Aurelien Jarno To: Arnd Bergmann , Krzysztof Kozlowski , Olof Johansson , Rob Herring , bcm-kernel-feedback-list@broadcom.com Cc: Stefan Wahren , Nicolas Saenz Julienne , Linus Walleij , devicetree@vger.kernel.org, Phil Elwell , linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, soc@kernel.org, Aurelien Jarno Subject: [PATCH RESEND 1/2] arm64: dts: broadcom: Enable device-tree overlay support for RPi devices Date: Thu, 28 Apr 2022 01:36:06 +0200 Message-Id: <20220427233607.1225419-2-aurelien@aurel32.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220427233607.1225419-1-aurelien@aurel32.net> References: <20220427233607.1225419-1-aurelien@aurel32.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220427_163626_517070_52199FBD X-CRM114-Status: GOOD ( 11.51 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add the '-@' DTC option for the Raspberry Pi devices. This option populates the '__symbols__' node that contains all the necessary symbols for supporting device-tree overlays (for instance from the firmware or the bootloader) on these devices. The Rasbperry Pi devices are well known for their GPIO header, that allow various "HATs" or other modules do be connected and this enables users to create out-of-tree device-tree overlays for these modules. Please note that this change does increase the size of the resulting DTB by ~40%. For example, with v5.17 increase in size is as follows: bcm2711-rpi-400.dtb 26481 -> 36830 bytes bcm2711-rpi-4-b.dtb 26537 -> 36886 bytes bcm2711-rpi-cm4-io.dtb 26426 -> 36945 bytes bcm2837-rpi-3-a-plus.dtb 14133 -> 19740 bytes bcm2837-rpi-3-b.dtb 14310 -> 20006 bytes bcm2837-rpi-3-b-plus.dtb 14670 -> 20474 bytes bcm2837-rpi-cm3-io3.dtb 13680 -> 19266 bytes Signed-off-by: Aurelien Jarno --- arch/arm64/boot/dts/broadcom/Makefile | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index 5082fcd1fea5..0aa8ee2afdd5 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -1,4 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 + +# Enables support for device-tree overlays +DTC_FLAGS_bcm2711-rpi-400 := -@ +DTC_FLAGS_bcm2711-rpi-4-b := -@ +DTC_FLAGS_bcm2711-rpi-cm4-io := -@ +DTC_FLAGS_bcm2837-rpi-3-a-plus := -@ +DTC_FLAGS_bcm2837-rpi-3-b := -@ +DTC_FLAGS_bcm2837-rpi-3-b-plus := -@ +DTC_FLAGS_bcm2837-rpi-cm3-io3 := -@ +DTC_FLAGS_bcm2837-rpi-zero-2-w := -@ + dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \ bcm2711-rpi-4-b.dtb \ bcm2711-rpi-cm4-io.dtb \ -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel