[PATCH 4/4] ARM: bcm2835: Enable SDHOST by default.

Eric Anholt
2016-02-26T23:05:42Z

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