linux-kernel - [RFC 07/10] ARM: tegra: tegra124: Enable IOMMU for SDMMC controllers

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Message-Id: <1403815790-8548-8-git-send-email-thierry.reding@gmail.com>
Date:	Thu, 26 Jun 2014 22:49:47 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Arnd Bergmann <arnd@...db.de>,
	Will Deacon <will.deacon@....com>,
	Joerg Roedel <joro@...tes.org>
Cc:	Cho KyongHo <pullip.cho@...sung.com>,
	Grant Grundler <grundler@...omium.org>,
	Dave Martin <Dave.Martin@....com>,
	Marc Zyngier <marc.zyngier@....com>,
	Hiroshi Doyu <hdoyu@...dia.com>,
	Olav Haugan <ohaugan@...eaurora.org>,
	Paul Walmsley <pwalmsley@...dia.com>,
	Rhyland Klein <rklein@...dia.com>,
	Allen Martin <amartin@...dia.com>, devicetree@...r.kernel.org,
	iommu@...ts.linux-foundation.org,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RFC 07/10] ARM: tegra: tegra124: Enable IOMMU for SDMMC controllers

From: Thierry Reding <treding@...dia.com>

The SDMMC controllers can use the IOMMU to avoid the need for bounce
buffers.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 82751d2878c4..bfffb4c102fb 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -607,6 +607,7 @@
 		resets = <&tegra_car 14>;
 		reset-names = "sdhci";
 		status = "disabled";
+		iommus = <&mc TEGRA_SWGROUP_SDMMC1A>;
 	};
 
 	sdhci@0,700b0200 {
@@ -618,6 +619,7 @@
 		resets = <&tegra_car 9>;
 		reset-names = "sdhci";
 		status = "disabled";
+		iommus = <&mc TEGRA_SWGROUP_SDMMC2A>;
 	};
 
 	sdhci@0,700b0400 {
@@ -629,6 +631,7 @@
 		resets = <&tegra_car 69>;
 		reset-names = "sdhci";
 		status = "disabled";
+		iommus = <&mc TEGRA_SWGROUP_SDMMC3A>;
 	};
 
 	sdhci@0,700b0600 {
@@ -640,6 +643,7 @@
 		resets = <&tegra_car 15>;
 		reset-names = "sdhci";
 		status = "disabled";
+		iommus = <&mc TEGRA_SWGROUP_SDMMC4A>;
 	};
 
 	ahub@0,70300000 {
-- 
2.0.0

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