Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933115AbdCUPkl (ORCPT ); Tue, 21 Mar 2017 11:40:41 -0400 Received: from mail-lf0-f66.google.com ([209.85.215.66]:36567 "EHLO mail-lf0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932550AbdCUPkh (ORCPT ); Tue, 21 Mar 2017 11:40:37 -0400 From: Alexander Kochetkov To: Heiko Stuebner , Rob Herring , Mark Rutland , Russell King , linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Alexander Kochetkov Subject: [PATCH] ARM: dts: rockchip: increase SD clock frequency on Radxa Rock Date: Tue, 21 Mar 2017 18:40:22 +0300 Message-Id: <1490110822-3310-1-git-send-email-al.kochet@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 966 Lines: 28 The patch set SD clock frequency to maximum possible to SD-card (50MHz). This change actual clock frequency from 32MHz to 48MHz (speedup 1.5X). Banner line before patch: 'mmc_host mmc0: Bus speed (slot 0) = 32000000Hz (slot req 50000000Hz, actual 32000000HZ div = 0)'. Banner line after patch: 'mmc_host mmc0: Bus speed (slot 0) = 96000000Hz (slot req 50000000Hz, actual 48000000HZ div = 1)' Signed-off-by: Alexander Kochetkov --- arch/arm/boot/dts/rk3188-radxarock.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts index 1da46d1..5b7daa4 100644 --- a/arch/arm/boot/dts/rk3188-radxarock.dts +++ b/arch/arm/boot/dts/rk3188-radxarock.dts @@ -302,6 +302,7 @@ pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>; vmmc-supply = <&vcc_sd0>; + clock-frequency = <50000000>; bus-width = <4>; cap-mmc-highspeed; cap-sd-highspeed; -- 1.7.9.5