From: Eric Anholt <eric@anholt.net>
To: linux-rpi-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Florian Fainelli <f.fainelli@gmail.com>,
Pawel Moll <pawel.moll@arm.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Lee Jones <lee@kernel.org>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
Eric Anholt <eric@anholt.net>, Rob Herring <robh+dt@kernel.org>,
Kumar Gala <galak@codeaurora.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] ARM: bcm2835: Enable SDHOST by default.
Date: Fri, 26 Feb 2016 15:05:42 -0800 [thread overview]
Message-ID: <1456527942-3045-5-git-send-email-eric@anholt.net> (raw)
In-Reply-To: <1456527942-3045-1-git-send-email-eric@anholt.net>
This improves read speed on my SD card (as reported by hdparm -t) from
10.15MB/sec to 16.70MB/sec. Once we add slave DMA, we can get to
18.45MB/sec.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
arch/arm/boot/dts/bcm2835-rpi.dtsi | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index b8efd41..65d3594 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -65,10 +65,18 @@
pinctrl-names = "default";
pinctrl-0 = <&emmc_gpio48>;
- status = "okay";
bus-width = <4>;
};
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+
+ bus-width = <4>;
+
+ status = "okay";
+};
+
&pwm {
pinctrl-names = "default";
pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
--
2.7.0
next prev parent reply other threads:[~2016-02-26 23:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 23:05 [PATCH 0/4] bcm2835 SDHOST controller Eric Anholt
2016-02-26 23:05 ` [PATCH 1/4] dt-bindings: Add binding for brcm,bcm2835-sdhost Eric Anholt
2016-03-03 22:02 ` Rob Herring
2016-02-26 23:05 ` [PATCH 2/4] mmc: bcm2835-sdhost: Add new driver for the internal SD controller Eric Anholt
2016-02-26 23:05 ` [PATCH 3/4] ARM: bcm2835: Include SDHOST in the device tree Eric Anholt
2016-02-27 18:17 ` Sergei Shtylyov
2016-02-26 23:05 ` Eric Anholt [this message]
2016-02-29 10:09 ` [PATCH 0/4] bcm2835 SDHOST controller Martin Sperl
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