From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH] ARM: dts: rockchip: increase SD clock frequency on Radxa Rock Date: Wed, 22 Mar 2017 17:47:41 +0100 Message-ID: <1978752.xjtBqdMt97@phil> References: <1490110822-3310-1-git-send-email-al.kochet@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <1490110822-3310-1-git-send-email-al.kochet@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Alexander Kochetkov Cc: 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 List-Id: linux-rockchip.vger.kernel.org Hi, Am Dienstag, 21. März 2017, 18:40:22 CET schrieb Alexander Kochetkov: > 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 sorry, but I will not apply this patch at this time. When testing on my radxarock with the card I always use upon entering the rootfs everything explodes with -110 errors, while without that patch the card runs stable as far as I can tell. I also don't have the time to investigate further right now though. Heiko