From patchwork Fri Jun 16 15:29:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Birsan X-Patchwork-Id: 13282901 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 2540EEB64D8 for ; Fri, 16 Jun 2023 15:29:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id E541DC433C9; Fri, 16 Jun 2023 15:29:50 +0000 (UTC) Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 EBCD7C433CB; Fri, 16 Jun 2023 15:29:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.kernel.org EBCD7C433CB Authentication-Results: smtp.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=microchip.com Authentication-Results: smtp.kernel.org; spf=pass smtp.mailfrom=microchip.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1686929388; x=1718465388; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=rI9R9UXytJokNpAttrGnBytdwyPaCRl1wE974W1E3pU=; b=KK8/B1/TOSPU7Q62zGDAkDd+3JDuOykwCdeKu7svED3Q4NHyywVFtzmB wdvPtaGN8GjJrNOHq1VD+dv0wmnDK8DTzdC7zRmtth7ldiypg/tI3RcPI f+9VslrzKGYAj5kRRa0dQuWwmanuFLviXTM+cI2r2aC1UUGJMED8RkLvJ GpW6S7vt2HbK+EQKegW4puXIA5ecM3CrlgJ+mEuu09nPnHPdsfjAqnqqM 6eSDEMlpvvo3XNyWQJIHwTZMI73AxrysnXsPQk/kpcJisI7cF5ue5pHxG VfDUKX0fV/4nQIU29A2LElw0zRB9vhe/a8PP8yHNOM6o7CCvmkOlXpyDQ g==; X-IronPort-AV: E=Sophos;i="6.00,247,1681196400"; d="scan'208";a="218283789" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 16 Jun 2023 08:29:44 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Fri, 16 Jun 2023 08:29:44 -0700 Received: from rob-ult-m91496.microchip.com (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Fri, 16 Jun 2023 08:29:42 -0700 From: List-Id: To: , , , , , CC: , , , Cristian Birsan Subject: [PATCH] arm: dts: Enable device-tree overlay support for AT91 boards Date: Fri, 16 Jun 2023 18:29:32 +0300 Message-ID: <20230616152932.1484154-1-cristian.birsan@microchip.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 From: Cristian Birsan Add the '-@' DTC option for AT91 boards that have device-tree overlays. This option populates the '__symbols__' node that contains all the necessary symbols for supporting device-tree overlays (from bootloader) on these devices. This change increases the size of the resulting DTB with ~30%-40%. Below are the measurements performed v6.4-rc6: at91-sam9x60_curiosity.dtb 28499 -> 36641 bytes at91-sam9x60ek.dtb 30867 -> 39609 bytes at91-sama5d27_som1_ek.dtb 26086 -> 34166 bytes at91-sama5d27_wlsom1_ek.dtb 26045 -> 33184 bytes at91-sama5d2_icp.dtb 27521 -> 36155 bytes at91-sama5d2_ptc_ek.dtb 23237 -> 29612 bytes at91-sama5d2_xplained.dtb 27262 -> 35326 bytes at91-sama5d3_eds.dtb 27924 -> 39939 bytes at91-sama5d3_xplained.dtb 28400 -> 40650 bytes at91-sama5d4_xplained.dtb 26456 -> 36107 bytes at91-sama7g5ek.dtb 29212 -> 37289 bytes Signed-off-by: Cristian Birsan --- arch/arm/boot/dts/Makefile | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 59829fc90315..38b82af2bf69 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -50,9 +50,21 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \ at91sam9g35ek.dtb \ at91sam9x25ek.dtb \ at91sam9x35ek.dtb +# Enables support for device-tree overlays +DTC_FLAGS_at91-sam9x60_curiosity := -@ +DTC_FLAGS_at91-sam9x60ek := -@ dtb-$(CONFIG_SOC_SAM9X60) += \ at91-sam9x60_curiosity.dtb \ at91-sam9x60ek.dtb +# Enables support for device-tree overlays +DTC_FLAGS_at91-sama5d27_som1_ek := -@ +DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@ +DTC_FLAGS_at91-sama5d2_icp := -@ +DTC_FLAGS_at91-sama5d2_ptc_ek := -@ +DTC_FLAGS_at91-sama5d2_xplained := -@ +DTC_FLAGS_at91-sama5d3_eds := -@ +DTC_FLAGS_at91-sama5d3_xplained := -@ +DTC_FLAGS_at91-sama5d4_xplained := -@ dtb-$(CONFIG_SOC_SAM_V7) += \ at91-kizbox2-2.dtb \ at91-kizbox3-hs.dtb \ @@ -79,6 +91,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \ at91-sama5d4_xplained.dtb \ at91-sama5d4ek.dtb \ at91-vinco.dtb +# Enables support for device-tree overlays +DTC_FLAGS_at91-sama7g5ek := -@ dtb-$(CONFIG_SOC_SAMA7G5) += \ at91-sama7g5ek.dtb dtb-$(CONFIG_SOC_SP7021) += \