From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 138ECC31E49 for ; Wed, 19 Jun 2019 10:24:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D373B208CB for ; Wed, 19 Jun 2019 10:24:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="UJvDZVNr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731506AbfFSKYq (ORCPT ); Wed, 19 Jun 2019 06:24:46 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:52186 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726959AbfFSKYq (ORCPT ); Wed, 19 Jun 2019 06:24:46 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x5JAObhd052264; Wed, 19 Jun 2019 05:24:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1560939877; bh=Rf3pm+iq7urdERtn0NzlcXUHizrExgM7UOvr4JIifow=; h=From:To:CC:Subject:Date; b=UJvDZVNr7vlhA5aAnb5eqHMVVX5oRclFTC7caPuWum6vaBoQj26tXza4ugXG4Jngd APJFWKioTPoMRhX7bHXHuDNmH4r6W1iIEfMNw5u8sDMfdauSGCbfKvn5Nj/WC7sC1m s1B5KBtS9/DuLMC2EidVzLP4tOPR3JuaTy5IfdVk= Received: from DLEE109.ent.ti.com (dlee109.ent.ti.com [157.170.170.41]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x5JAObiE097632 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 19 Jun 2019 05:24:37 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 19 Jun 2019 05:24:37 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Wed, 19 Jun 2019 05:24:37 -0500 Received: from a0230074-OptiPlex-7010.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id x5JAOYY7059883; Wed, 19 Jun 2019 05:24:35 -0500 From: Faiz Abbas To: , , CC: , , , , Subject: [PATCH] ARM: dts: am57xx: Disable voltage switching for SD card Date: Wed, 19 Jun 2019 15:54:54 +0530 Message-ID: <20190619102454.5097-1-faiz_abbas@ti.com> X-Mailer: git-send-email 2.19.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If UHS speed modes are enabled, a compatible SD card switches down to 1.8V during enumeration. If after this a software reboot/crash takes place and on-chip ROM tries to enumerate the SD card, the difference in IO voltages (host @ 3.3V and card @ 1.8V) may end up damaging the card. The fix for this is to have support for power cycling the card in hardware (with a PORz/soft-reset line causing a power cycle of the card). Because the beaglebone X15 (rev A,B and C), am57xx-idks and am57xx-evms don't have this capability, disable voltage switching for these boards. The major effect of this is that the maximum supported speed mode is now high speed(50 MHz) down from SDR104(200 MHz). commit 88a748419b84 ("ARM: dts: am57xx-idk: Remove support for voltage switching for SD card") did this only for idk boards. Do it for all affected boards. Signed-off-by: Faiz Abbas --- arch/arm/boot/dts/am571x-idk.dts | 7 +------ arch/arm/boot/dts/am572x-idk.dts | 7 +------ arch/arm/boot/dts/am574x-idk.dts | 7 +------ arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi | 1 + arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts | 7 +------ arch/arm/boot/dts/am57xx-beagle-x15-revc.dts | 7 +------ 6 files changed, 6 insertions(+), 30 deletions(-) diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts index 66116ad3f9f4..0a043908215c 100644 --- a/arch/arm/boot/dts/am571x-idk.dts +++ b/arch/arm/boot/dts/am571x-idk.dts @@ -178,14 +178,9 @@ }; &mmc1 { - pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104"; + pinctrl-names = "default", "hs"; pinctrl-0 = <&mmc1_pins_default_no_clk_pu>; pinctrl-1 = <&mmc1_pins_hs>; - pinctrl-2 = <&mmc1_pins_sdr12>; - pinctrl-3 = <&mmc1_pins_sdr25>; - pinctrl-4 = <&mmc1_pins_sdr50>; - pinctrl-5 = <&mmc1_pins_ddr50_rev20 &mmc1_iodelay_ddr50_conf>; - pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>; }; &mmc2 { diff --git a/arch/arm/boot/dts/am572x-idk.dts b/arch/arm/boot/dts/am572x-idk.dts index 4f835222c266..8663a9416af6 100644 --- a/arch/arm/boot/dts/am572x-idk.dts +++ b/arch/arm/boot/dts/am572x-idk.dts @@ -19,14 +19,9 @@ }; &mmc1 { - pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104"; + pinctrl-names = "default", "hs"; pinctrl-0 = <&mmc1_pins_default_no_clk_pu>; pinctrl-1 = <&mmc1_pins_hs>; - pinctrl-2 = <&mmc1_pins_sdr12>; - pinctrl-3 = <&mmc1_pins_sdr25>; - pinctrl-4 = <&mmc1_pins_sdr50>; - pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev20_conf>; - pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>; }; &mmc2 { diff --git a/arch/arm/boot/dts/am574x-idk.dts b/arch/arm/boot/dts/am574x-idk.dts index dc5141c35610..7935d70874ce 100644 --- a/arch/arm/boot/dts/am574x-idk.dts +++ b/arch/arm/boot/dts/am574x-idk.dts @@ -24,14 +24,9 @@ }; &mmc1 { - pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104"; + pinctrl-names = "default", "hs"; pinctrl-0 = <&mmc1_pins_default_no_clk_pu>; pinctrl-1 = <&mmc1_pins_hs>; - pinctrl-2 = <&mmc1_pins_default>; - pinctrl-3 = <&mmc1_pins_hs>; - pinctrl-4 = <&mmc1_pins_sdr50>; - pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_conf>; - pinctrl-6 = <&mmc1_pins_ddr50 &mmc1_iodelay_sdr104_conf>; }; &mmc2 { diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi index 2341a56ebab9..0cdfd2853ba8 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi +++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi @@ -433,6 +433,7 @@ bus-width = <4>; cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */ + no-1-8-v; }; &mmc2 { diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts index 5a77b334923d..34c69965821b 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts @@ -19,14 +19,9 @@ }; &mmc1 { - pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104"; + pinctrl-names = "default", "hs"; pinctrl-0 = <&mmc1_pins_default>; pinctrl-1 = <&mmc1_pins_hs>; - pinctrl-2 = <&mmc1_pins_sdr12>; - pinctrl-3 = <&mmc1_pins_sdr25>; - pinctrl-4 = <&mmc1_pins_sdr50>; - pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev11_conf>; - pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev11_conf>; vmmc-supply = <&vdd_3v3>; vqmmc-supply = <&ldo1_reg>; }; diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts index 17c41da3b55f..ccd99160bbdf 100644 --- a/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts +++ b/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts @@ -19,14 +19,9 @@ }; &mmc1 { - pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104"; + pinctrl-names = "default", "hs"; pinctrl-0 = <&mmc1_pins_default>; pinctrl-1 = <&mmc1_pins_hs>; - pinctrl-2 = <&mmc1_pins_sdr12>; - pinctrl-3 = <&mmc1_pins_sdr25>; - pinctrl-4 = <&mmc1_pins_sdr50>; - pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev20_conf>; - pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>; vmmc-supply = <&vdd_3v3>; vqmmc-supply = <&ldo1_reg>; }; -- 2.19.2