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Groups > linux.kernel > #1344827
| From | Eric Anholt <eric@anholt.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 4/4] ARM: bcm2835: Enable SDHOST by default. |
| Date | 2016-02-27 00:20 +0100 |
| Message-ID | <r6zPZ-26L-33@gated-at.bofh.it> (permalink) |
| References | <r6zPY-26L-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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[PATCH 0/4] bcm2835 SDHOST controller Eric Anholt <eric@anholt.net> - 2016-02-27 00:20 +0100 [PATCH 4/4] ARM: bcm2835: Enable SDHOST by default. Eric Anholt <eric@anholt.net> - 2016-02-27 00:20 +0100 Re: [PATCH 0/4] bcm2835 SDHOST controller Martin Sperl <martin@sperl.org> - 2016-02-29 11:10 +0100
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