From patchwork Tue Jan 30 20:40:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henrik Grimler X-Patchwork-Id: 13538037 Received: from out-182.mta0.migadu.com (out-182.mta0.migadu.com [91.218.175.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 79BBF69D35 for ; Tue, 30 Jan 2024 20:41:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647272; cv=none; b=kthH1z81dXBqrBqHNJ7CFe1bjwLCxnzojVbpEELjGITQjjC5sYo5TSEgJRQbBdiOQ5PYnbmryxMPANOzsVBMLUoIRnVIXkEl/ccaTIUMQ+N49R7p1vfcB1xQKkezLE4JtBIngJeWeUYWvFTMkUesctuLfP6DfkLt1QE4zo8pY1g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647272; c=relaxed/simple; bh=DekZO0aq9lhra3tRrH0719xH/gp0/UNZvHm7ULmUiGI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qI2v8Hj3WPmzywNzVdR8KszwkR86EexIQGa+J6iVMAZOMgdDMXa7O4rAspy9IdvaXt/Nj+Q33Q5LMyHyRWJHpmkeZ6BGHH23oVfxqMWG8yeWGheV5sqQ9yMOEpSxiL+Hkyy4xB3QiZQoCo9Mk/WgCSyGwj8H3wD9HQtT52ikH+U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se; spf=pass smtp.mailfrom=grimler.se; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b=Fk+cn2h5; arc=none smtp.client-ip=91.218.175.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=grimler.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b="Fk+cn2h5" 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=1706647268; 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=DG7tf3ZanPe0jMuzI6Bk8fkwCRX7z/OicBYBzmzPw1s=; b=Fk+cn2h5CmKdF/qu38riedRwlSYujz/5llH+xmJxnsEDcgmNS47b9PEqdDCZhtcpj6004P GE0Akg7c018Kgt4yQZv//EdMQadw4R/QhV0KbO7EkVNT8k+popqri+266nWCbu9IgEn/SI 9a5LvrhejqreyjpBv6sjSWMekoWbxLQ= From: Henrik Grimler Date: Tue, 30 Jan 2024 21:40:39 +0100 Subject: [PATCH 1/3] ARM: dts: samsung: exynos5420-galaxy-tab-common: sort node properties Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240130-galaxy-tab-s-cleanup-v1-1-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=2728; i=henrik@grimler.se; h=from:subject:message-id; bh=DekZO0aq9lhra3tRrH0719xH/gp0/UNZvHm7ULmUiGI=; b=owEBbQGS/pANAwAKAbAHbkkLcWFrAcsmYgBluV7adNmpL0JxNeL0p04b/DnyOK6UU6hBN48Sd osGQ9v6Oc2JATMEAAEKAB0WIQQsfymul4kfZBmp4s2wB25JC3FhawUCZble2gAKCRCwB25JC3Fh a6SbB/9GyZCxy38ia8XCTbbUIC7Zhq+QX+yYPzOynkJjx4ujULXY4n7Qud22b4uGUzKUD6N7Htc 2oKtBJzqSPk7Gt7B7jYGAfZBpjqb5d9cjIWPkLPmfwzQNgF7aJCILH7au65kBlPrc2d+AvlnUex q4qh5xGwRgjb+mN6o7O/FSkVtVQEZhr6BZ1P7mBcSrdVVe/3bb3tiw8xmwfNu1IFi9RDFhYFfTn gg3Rg3NQU+Dz4OYU10J4i0Z1ZQxNmzMdr1B42G4cP8rYVUMdEB3e0zkxLnZNbdWgiM+FiqgDRWk Tw9bS3doVlsi3dOHWPhsfBqNxHDyaWCBf4G8PaAxbNZn+t8A X-Developer-Key: i=henrik@grimler.se; a=openpgp; fpr=2C7F29AE97891F6419A9E2CDB0076E490B71616B X-Migadu-Flow: FLOW_OUT Sort all node properties according to dts coding style guidelines, to make dtsi easier to follow. Signed-off-by: Henrik Grimler --- .../dts/samsung/exynos5420-galaxy-tab-common.dtsi | 23 +++++++++++----------- 1 file changed, 11 insertions(+), 12 deletions(-) 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 f525b2f5e4e0..0c1aeafc025b 100644 --- a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi +++ b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi @@ -103,8 +103,8 @@ &cpu4 { }; &gpu { - status = "okay"; mali-supply = <&buck4_reg>; + status = "okay"; }; &hsi2c_7 { @@ -113,11 +113,10 @@ &hsi2c_7 { pmic@66 { compatible = "samsung,s2mps11-pmic"; reg = <0x66>; - interrupt-parent = <&gpx3>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; - pinctrl-names = "default"; pinctrl-0 = <&s2mps11_irq>; + pinctrl-names = "default"; s2mps11_osc: clocks { compatible = "samsung,s2mps11-clk"; @@ -605,7 +604,6 @@ &mixer { /* Internal storage */ &mmc_0 { - status = "okay"; bus-width = <8>; cap-mmc-highspeed; card-detect-delay = <200>; @@ -614,27 +612,28 @@ &mmc_0 { non-removable; pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8>; pinctrl-names = "default"; + vqmmc-supply = <&ldo3_reg>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-ddr-timing = <0 2>; samsung,dw-mshc-sdr-timing = <0 4>; - vqmmc-supply = <&ldo3_reg>; + status = "okay"; }; /* External sdcard */ &mmc_2 { - status = "okay"; bus-width = <4>; cap-sd-highspeed; card-detect-delay = <200>; cd-gpios = <&gpx2 4 GPIO_ACTIVE_LOW>; pinctrl-0 = <&sd2_clk &sd2_cmd &mmc2_cd &sd2_bus1 &sd2_bus4>; pinctrl-names = "default"; - samsung,dw-mshc-ciu-div = <3>; - samsung,dw-mshc-ddr-timing = <0 2>; - samsung,dw-mshc-sdr-timing = <0 4>; sd-uhs-sdr50; vmmc-supply = <&ldo19_reg>; vqmmc-supply = <&ldo13_reg>; + samsung,dw-mshc-ciu-div = <3>; + samsung,dw-mshc-ddr-timing = <0 2>; + samsung,dw-mshc-sdr-timing = <0 4>; + status = "okay"; }; &pinctrl_0 { @@ -652,9 +651,9 @@ s2mps11_irq: s2mps11-irq-pins { }; &rtc { - status = "okay"; clocks = <&clock CLK_RTC>, <&s2mps11_osc S2MPS11_CLK_AP>; clock-names = "rtc", "rtc_src"; + status = "okay"; }; &tmu_cpu0 { @@ -686,11 +685,11 @@ &usbdrd_dwc3_1 { }; &usbdrd3_0 { - vdd33-supply = <&ldo9_reg>; vdd10-supply = <&ldo11_reg>; + vdd33-supply = <&ldo9_reg>; }; &usbdrd3_1 { - vdd33-supply = <&ldo9_reg>; vdd10-supply = <&ldo11_reg>; + vdd33-supply = <&ldo9_reg>; }; From patchwork Tue Jan 30 20:40:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henrik Grimler X-Patchwork-Id: 13538039 Received: from out-177.mta0.migadu.com (out-177.mta0.migadu.com [91.218.175.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41B0455E63 for ; Tue, 30 Jan 2024 20:41:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647273; cv=none; b=lF5MzbQTeJH4tPUUohdVu3rt4kUlCIx/IA51kz9QC1BrfyHU7dmZw+ZLx/lPMxpTgp1zKRk6EPo/d5ww4rmVCSS53JVfz62BH4X2KFaVWdzemiz3TefEKnAJm5zPtWb9HULm2uGi9NmP/HUoO/ObQ8nx+F+q849mrGKs/EivKro= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647273; c=relaxed/simple; bh=mfgmfT6Y+yAecXwInwSg+9gDbzv0JiMuG/TNlfkMWgk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Wgv71rWyry2y0XNEXgRHdJepY/MLTeV68qYHncVrSbG2Av6I8zcl3sDw/NKvz/Hf7zbb+XbQ1LpH2i6tsqAQV41l6Robe5X3EFHw1Exip/V/HTG+gsVsJ934FE5yVTYTsy725+P0SjUfHIqH8tvf4VXF+4XtMtXkl1SwkcaN294= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se; spf=pass smtp.mailfrom=grimler.se; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b=eUEbIOXw; arc=none smtp.client-ip=91.218.175.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=grimler.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b="eUEbIOXw" 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=1706647269; 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=vTXS7Usw65Bg+jTRdlumhmylOFlcOQdVX0MiGUHQrRc=; b=eUEbIOXwpx3bESd6400bj0CueBq4EkqNUIn4+CAQHxnzj+pCWdJVzdiO+6JBEVu67DP7vj xi9ruFYxfbxFzNnvSzxwH9m+HzCQJupNGCP9GWgFh7kNnpm7A4etJFtwagDkeK4GC3zSKT l2Vhl4QCY0Ar3Evemit3F6m40LH47d4= From: Henrik Grimler Date: Tue, 30 Jan 2024 21:40:40 +0100 Subject: [PATCH 2/3] ARM: dts: samsung: exynos5420-galaxy-tab-common: add wifi node Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240130-galaxy-tab-s-cleanup-v1-2-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=1940; i=henrik@grimler.se; h=from:subject:message-id; bh=mfgmfT6Y+yAecXwInwSg+9gDbzv0JiMuG/TNlfkMWgk=; b=owEBbQGS/pANAwAKAbAHbkkLcWFrAcsmYgBluV7dB/oNjb2olhfimF3Ut6aoVaol0f9xBck7k +6PMKr9OpOJATMEAAEKAB0WIQQsfymul4kfZBmp4s2wB25JC3FhawUCZble3QAKCRCwB25JC3Fh a2vfCACruJQ/v12UuxMu3lSskVEmOzjYZP76TamvPfeO/Wrs8cS0DxTkx2RNSlN+IAs0XrsBlD+ MQ1/pzf8sK5UDUG+Uw47o9h4e5KfV8hkGXw7ZeYocEC2aOzKnHDqvFWlGyGPvLw/2K2MFk0CCZG XgqxhYk44tl/hW3Xq8vANBXEmpvZdieC7aLBkMeW/pAOrcNKfuqVwAur/HmNA/16G7jrNVRuB7y +4h8VIvtJTPnwGxOy4aa2TEUMpEyV4MMxim9O7ds3M539q5AKcSbPk/3lmSL1UyQN4nXDeo0gY1 U/EpOD65xG7vtSe/MlFGZ79Y78Be9Nb5swo9hlv86CfTdAbm X-Developer-Key: i=henrik@grimler.se; a=openpgp; fpr=2C7F29AE97891F6419A9E2CDB0076E490B71616B X-Migadu-Flow: FLOW_OUT By using brcm/brcmfmac4354-sdio.bin from linux-firmware together with nvram.txt from vendor firmware wifi works well on the chagall-wifi and klimt-lte. Signed-off-by: Henrik Grimler --- .../dts/samsung/exynos5420-galaxy-tab-common.dtsi | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) 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 0c1aeafc025b..d569fac29b18 100644 --- a/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi +++ b/arch/arm/boot/dts/samsung/exynos5420-galaxy-tab-common.dtsi @@ -30,6 +30,7 @@ / { aliases { mmc0 = &mmc_0; + mmc1 = &mmc_1; mmc2 = &mmc_2; }; @@ -87,6 +88,13 @@ key-volume-down { linux,code = ; }; }; + + mmc1_pwrseq: pwrseq { + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&gpy7 7 GPIO_ACTIVE_LOW>; + clocks = <&s2mps11_osc S2MPS11_CLK_BT>; + clock-names = "ext_clock"; + }; }; &cci { @@ -619,6 +627,25 @@ &mmc_0 { status = "okay"; }; +/* WiFi */ +&mmc_1 { + bus-width = <4>; + cap-sd-highspeed; + cap-sdio-irq; + card-detect-delay = <200>; + keep-power-in-suspend; + mmc-pwrseq = <&mmc1_pwrseq>; + non-removable; + pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_int>, <&sd1_bus1>, + <&sd1_bus4>, <&wifi_en>; + pinctrl-names = "default"; + vqmmc-supply = <&ldo2_reg>; + samsung,dw-mshc-ciu-div = <1>; + samsung,dw-mshc-ddr-timing = <0 2>; + samsung,dw-mshc-sdr-timing = <0 1>; + status = "okay"; +}; + /* External sdcard */ &mmc_2 { bus-width = <4>; @@ -648,6 +675,11 @@ s2mps11_irq: s2mps11-irq-pins { samsung,pin-pud = ; samsung,pin-drv = ; }; + + wifi_en: wifi-en-pins { + samsung,pins = "gpy7-7"; + samsung,pin-pud = ; + }; }; &rtc { 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: 13538038 Received: from out-177.mta0.migadu.com (out-177.mta0.migadu.com [91.218.175.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 25A4D6E2AA for ; Tue, 30 Jan 2024 20:41:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647273; cv=none; b=GZsIvvzPFXMTuLmyAKuO1fvBsq1aX2qjCOqmo8+PFdyYWl8h2hTw3+O6da/3Ec/9Ndn48njNNARORFmphuvlvJ4mJUmOASnxEaFALnzafyBvgSjIkzsKagOINXKxeXQHlXVp+fn38HS/P0PxOaJr6cd7dzva0ihaBnHLTVoJSsA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706647273; c=relaxed/simple; bh=+RHfIOYCokHUptccyiBZRvuJnCzYabw0CvXOcn+k8r8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=N2QVBwlu6ULB5XaIGa59PYbC/CchJtVLDEI717/0vthbAJvvijFga3KSQjGcLFDnCI7OkVWkfZOMAgUiy+Xm5cnld7bHej/CJhstaQ3m+4tfjhDou+nEpcOBY7MB/dr4IfPHdE7k3gRUBk3B8dRVjd22v6LPXyz79PQGHYGGtG8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se; spf=pass smtp.mailfrom=grimler.se; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b=Aq0UQlvz; arc=none smtp.client-ip=91.218.175.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=grimler.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=grimler.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=grimler.se header.i=@grimler.se header.b="Aq0UQlvz" 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 Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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 {