From patchwork Fri Jan 27 21:38:42 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 9542711 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AAFC360415 for ; Fri, 27 Jan 2017 21:47:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9BDC125EF7 for ; Fri, 27 Jan 2017 21:47:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E90E28174; Fri, 27 Jan 2017 21:47:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 15535204C1 for ; Fri, 27 Jan 2017 21:47:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751679AbdA0Vq6 (ORCPT ); Fri, 27 Jan 2017 16:46:58 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:38397 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751584AbdA0Vqu (ORCPT ); Fri, 27 Jan 2017 16:46:50 -0500 Received: by mail.free-electrons.com (Postfix, from userid 110) id 038D720B75; Fri, 27 Jan 2017 22:39:03 +0100 (CET) Received: from localhost (LFbn-1-2281-83.w90-76.abo.wanadoo.fr [90.76.98.83]) by mail.free-electrons.com (Postfix) with ESMTPSA id CEBC820B7D; Fri, 27 Jan 2017 22:38:52 +0100 (CET) From: Maxime Ripard To: Chen-Yu Tsai , Maxime Ripard , Ulf Hansson Cc: Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, Andre Przywara Subject: [PATCH v5 10/13] arm64: allwinner: a64: Increase the MMC max frequency Date: Fri, 27 Jan 2017 22:38:42 +0100 Message-Id: <289ef7f8a83d156bb2aa74bede398ad0035a2429.1485553113.git-series.maxime.ripard@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The eMMC controller seem to have a maximum frequency of 200MHz, while the regular MMC controllers are capped at 150MHz. Since older SoCs cannot go that high, we cannot change the default maximum frequency, but fortunately for us we have a property for that in the DT. This also has the side effect of allowing to use the MMC HS200 and SD SDR104 modes for the boards that support it (with either 1.2v or 1.8v IOs). Signed-off-by: Maxime Ripard Tested-by: Florian Vaussard --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 3 +++ 1 file changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index acc7071a7540..9ae4f589fb1c 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -129,6 +129,7 @@ resets = <&ccu RST_BUS_MMC0>; reset-names = "ahb"; interrupts = ; + max-frequency = <150000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>; @@ -142,6 +143,7 @@ resets = <&ccu RST_BUS_MMC1>; reset-names = "ahb"; interrupts = ; + max-frequency = <150000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>; @@ -155,6 +157,7 @@ resets = <&ccu RST_BUS_MMC2>; reset-names = "ahb"; interrupts = ; + max-frequency = <200000000>; status = "disabled"; #address-cells = <1>; #size-cells = <0>;