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: 9542685 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 E2829601D7 for ; Fri, 27 Jan 2017 21:40:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D4DAC26E91 for ; Fri, 27 Jan 2017 21:40:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C907427F9F; Fri, 27 Jan 2017 21:40:29 +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=-1.9 required=2.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 39D1626E91 for ; Fri, 27 Jan 2017 21:40:29 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cXEFv-0001TG-Lf; Fri, 27 Jan 2017 21:40:27 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cXEEp-00080f-JQ for linux-arm-kernel@lists.infradead.org; Fri, 27 Jan 2017 21:39:24 +0000 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 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: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170127_133919_843760_8A3C01F6 X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Andre Przywara , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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>;