[PATCH 23/32] ARM: bcm2835: Enable SDHOST by default.

From: Gerd Hoffmann
Date: Wed Jun 01 2016 - 17:51:08 EST


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