From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752132AbcHHCaX (ORCPT ); Sun, 7 Aug 2016 22:30:23 -0400 Received: from lucky1.263xmail.com ([211.157.147.131]:56626 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751955AbcHHCaV (ORCPT ); Sun, 7 Aug 2016 22:30:21 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: linux-arm-kernel@lists.infradead.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 Subject: Re: [PATCH] ARM: dts: add rk3288-firefly-reload To: Heiko Stuebner References: <1549971.ctkvOGm2xW@diego> <2868781.4x2gJCRbLH@diego> <413ebccd-e8d6-1401-3065-f9a63b4d66e6@rock-chips.com> <1815189.oGy6GHMbyM@phil> Cc: shawn.lin@rock-chips.com, mark.rutland@arm.com, devicetree@vger.kernel.org, Randy Li , linux@armlinux.org.uk, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org From: Shawn Lin Message-ID: Date: Mon, 8 Aug 2016 10:29:52 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <1815189.oGy6GHMbyM@phil> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 在 2016/8/7 22:44, Heiko Stuebner 写道: > Hi Shawn, > > Am Sonntag, 7. August 2016, 11:40:21 schrieb Shawn Lin: >> On 2016/7/19 3:46, Heiko Stübner wrote: >>> Am Montag, 18. Juli 2016, 23:32:32 schrieb Randy Li: >>>> The Firefly RK3288 Reload is a combination Firefly rk3288 core board >>>> with the Reload baseboard. Add a dtsi for the Firefly rk3288 core >>>> which can be included into the dts for the various baseboards >>>> in the future and dts for Reload base board. >>>> >>>> Currently supported are serial console, wired networking, eMMC and >>>> SD storage, SPFIF, IR receiver, LEDs, SDIO wifi and USB. But only >>>> the OTG could work on the host mode now, the other USB host can't >>>> work now, additional patches are required. >>>> >>>> Signed-off-by: Randy Li >>>> Acked-by: Rob Herring >>> >>> applied [0], after some minor reordering - please double check. >>> >>> Also, while the branch is named 4.8 this will only go into 4.9, as the >>> merge- window supposedly opens on the weekend. >> >> Sorry for the noise here:), but I find there is some mmc stuff >> which confuse me. Maybe Randy could elaborate more? >> >> Your sdmmc claims to support UHS-I mode like sd-uhs-sdr104, etc, which >> will ask dw_mmc to switch vqmmc from 3V3 to 1V8 after sending CMD11. >> >> But the vqmmc is vccio_sd which is fixed as 3V3? :) > > so far we have only been able to achieve UHS speeds on devices based on the > rk808 pmic (I had sucess on veyron and popmetal). The act8846-based boards > seem to have some issue when trying to do the switch to 1.8V, resulting in > mmc errors and the mmc-core switching back to 3.3V. Interesting.... I will have a look at it this weekend with Randy face 2 face.... > > I think this might be caused by a bug in the act8846 driver or some dts > mistake. But so far nobody had the time and enthusiasm to investigate :-) > > > Heiko > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-rockchip > -- Best Regards Shawn Lin