From patchwork Tue Jan 30 20:40:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henrik Grimler X-Patchwork-Id: 13538029 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 26D80C47DDF for ; Tue, 30 Jan 2024 20:41:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DIblk/f0pPpdUTNR8+8fdGJxkzQf174qq5ik29bIFs0=; b=zH3P1NvVKHjh9E oZuXlxrD3zky1snWu6hpQAN/szKLSmmB7+N1Wi6n2OZJ0HWYM06uEXXQJkCBwErrzVf/216qH/xzd qTKOHQUwkzEGHBoXOrQECYTU/QXO3MfCMsfGc5rNrkPN/933I1bCSB2i5KhZT4dDrzzu1aQsHjsCX e2Dc+p93k3PmYiXAKwJWRNVES9nMnknKZhotORHwGBlB8DYfFSU8DEH3R2Hutk4cqrPZYFAeYmfwo AfF8Ze4uEN0gNIrsRL3dC2ryI9vdah9c5ZZtjU7m8L5TmCJeWCEhQYQRyrDPPjGnGgXO4qVK3u/c+ pHoDrQAy/J6C3l1yHCfg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUuv8-00000000VIC-1pli; Tue, 30 Jan 2024 20:41:26 +0000 Received: from out-183.mta0.migadu.com ([91.218.175.183]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUuuw-00000000VDp-1opf for linux-arm-kernel@lists.infradead.org; Tue, 30 Jan 2024 20:41:16 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=grimler.se; s=key1; t=1706647270; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=y9OzBq6gWd0BJFvSgtjPyJwiO3ruOjewsWTRko4LLnY=; b=Aq0UQlvzNFD11kaNf3XHOfH/iW849kODjaOMj1v2yq3LLab8Mq3U+lkWK1AWAThc5HTzkc 9G4kGMgpB6IquqkxcO5bYfwFFxxhE0M2Wnk2EG3NtoWVDIwSBsBZWgvuyl7CVgRN2/QGcM hLti9PLufMHq6Tf56sDcpP9MHv/4T94= From: Henrik Grimler Date: Tue, 30 Jan 2024 21:40:41 +0100 Subject: [PATCH 3/3] ARM: dts: samsung: exynos5420-galaxy-tab-common: decrease available memory MIME-Version: 1.0 Message-Id: <20240130-galaxy-tab-s-cleanup-v1-3-d4e17857241d@grimler.se> References: <20240130-galaxy-tab-s-cleanup-v1-0-d4e17857241d@grimler.se> In-Reply-To: <20240130-galaxy-tab-s-cleanup-v1-0-d4e17857241d@grimler.se> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Marek Szyprowski Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht X-Developer-Signature: v=1; a=openpgp-sha256; l=1202; i=henrik@grimler.se; h=from:subject:message-id; bh=+RHfIOYCokHUptccyiBZRvuJnCzYabw0CvXOcn+k8r8=; b=owEBbQGS/pANAwAKAbAHbkkLcWFrAcsmYgBluV7fF6B01N24dpZiM46HwWy7QO86eVRtTi+9c Y6KjRqW2yiJATMEAAEKAB0WIQQsfymul4kfZBmp4s2wB25JC3FhawUCZble3wAKCRCwB25JC3Fh a8mwCADBSJIa2AFfO1WD6mWg8Brz+Yftzi3+6+Nwh7oTvciF7eaqquXG5yqubm18N8J9CRtxBuD UtYFZKUfDnE68P1FWNiGywdvNJ6bV6aVPaDeM4wsD4eG7zF4Wl5QCxzjoM1WYs9hkOe+2HTbEpN aTto0cpgaLNi1yrFuJbVCdwFbVFdMbmm5dvP61/eGCYtnhKCDb5FmzE+SnoszjaIgxOStr2a0kp Tu5kSLVs/Bb8J80waAvzNzZc0JK/Zeh9Q15dwrlk2phBIBz+6Sly1t+R8np+h+5FY2Mdcrv+Nyq 6nM58l94DK86gXpjXdA1lkK++x4dq/1WskIxNu1cQMYcvdTh X-Developer-Key: i=henrik@grimler.se; a=openpgp; fpr=2C7F29AE97891F6419A9E2CDB0076E490B71616B X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240130_124115_133262_CD1E4689 X-CRM114-Status: GOOD ( 12.70 ) 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 The last 6 MiB are used by trustzone firmware, and cannot be used by Linux. Currently we are saved by that the proprietary bootloader (sboot) passes available memory to kernel through ATAG_MEM. Change memory range in any case so that we do not have to rely on ATAG_MEM. Signed-off-by: Henrik Grimler --- Similar fix was applied for the exynos5422 odroids in commit 6591a02e17e6 ("ARM: dts: reduce total RAM by 22 MiB for exynos5422-odroidxu3"): https://lore.kernel.org/all/1421842972-25807-1-git-send-email-m.szyprowski@samsung.com/ --- arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi index d569fac29b18..ac929e282c84 100644 --- a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi +++ b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi @@ -40,7 +40,7 @@ chosen { memory@20000000 { device_type = "memory"; - reg = <0x20000000 0xc0000000>; + reg = <0x20000000 0xbfa00000>; }; firmware@2073000 {