From mboxrd@z Thu Jan 1 00:00:00 1970 From: kraxel@redhat.com (Gerd Hoffmann) Date: Wed, 1 Jun 2016 23:43:32 +0200 Subject: [PATCH 23/32] ARM: bcm2835: Enable SDHOST by default. In-Reply-To: <1464817421-8519-1-git-send-email-kraxel@redhat.com> References: <1464817421-8519-1-git-send-email-kraxel@redhat.com> Message-ID: <1464817421-8519-24-git-send-email-kraxel@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Eric Anholt 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 --- 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