[PATCH v4 6/7] arm: dts: bcm283x: switch from &sdhci to &sdhost

Gerd Hoffmann
2017-03-08T09:20:21Z

sdcard access with the sdhost controller is faster.

Read access (dd with 64k blocks on rpi2):
CONFIG_MMC_SDHCI_IPROC: 11-12 MB/s
CONFIG_MMC_BCM2835: 19-20 MB/s

Differences on write access are pretty much in the noise.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Eric Anholt <eric@anholt.net>
---
arch/arm/boot/dts/bcm2835-rpi.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 8b95832..e36c392 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -65,13 +65,13 @@
&sdhci {
pinctrl-names = "default";
pinctrl-0 = <&emmc_gpio48>;
- status = "okay";
bus-width = <4>;
};

&sdhost {
pinctrl-names = "default";
pinctrl-0 = <&sdhost_gpio48>;
+ status = "okay";
bus-width = <4>;
};

--
1.8.3.1