Thread (21 messages) 21 messages, 4 authors, 2017-03-18
STALE3375d REVIEWED: 1 (0M)
Revisions (3)
  1. v2 [diff vs current]
  2. v3 [diff vs current]
  3. v4 current

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

From: kraxel@redhat.com (Gerd Hoffmann)
Date: 2017-03-08 09:22:23
Also in: linux-devicetree, linux-mmc, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

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 <redacted>
---
 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
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