linux-kernel - [PATCH AUTOSEL 5.4 036/266] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200618011631.604574-36-sashal@kernel.org>
Date:   Wed, 17 Jun 2020 21:12:41 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Marek Behún <marek.behun@....cz>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Sasha Levin <sashal@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 036/266] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes

From: Marek Behún <marek.behun@....cz>

[ Upstream commit 7a2c36b039d2343cc29fec6102da839477b8dc60 ]

Use sdhci-caps-mask to forbid SDR104 mode on the SDIO capable SDHCI
controller. Without this the device cannot pass electromagnetic
interference certifications.

Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
Signed-off-by: Marek Behún <marek.behun@....cz>
Cc: Gregory CLEMENT <gregory.clement@...tlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 5f350cc71a2f..01f66056d7d5 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -171,6 +171,8 @@ &sdhci1 {
 	marvell,pad-type = "sd";
 	vqmmc-supply = <&vsdio_reg>;
 	mmc-pwrseq = <&sdhci1_pwrseq>;
+	/* forbid SDR104 for FCC purposes */
+	sdhci-caps-mask = <0x2 0x0>;
 	status = "okay";
 };
 
-- 
2.25.1