From: Eric Anholt <eric@xxxxxxxxxx>
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@xxxxxxxxxx>
---
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 a207693..97496cd 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -65,8 +65,16 @@
pinctrl-names = "default";
pinctrl-0 = <&emmc_gpio48>;
+ bus-width = <4>;
+};
+
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+
+ bus-width = <4>;
+
status = "okay";
- bus-width = <4>;
};
&pwm {
--
1.8.3.1
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