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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0A50EEB566 for ; Fri, 8 Sep 2023 18:20:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242027AbjIHSUk (ORCPT ); Fri, 8 Sep 2023 14:20:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229587AbjIHSTN (ORCPT ); Fri, 8 Sep 2023 14:19:13 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E355D1FFD; Fri, 8 Sep 2023 11:18:39 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6CCB1C3277B; Fri, 8 Sep 2023 18:17:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694197022; bh=MaYCL40TNC+JgOFwtRYiX20EhwwqpGGhLX6YIcj6Fcc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H83y1caxxrGl9GNcUV9B852NgCLqjmx6WFJXLqS1PYYNJIAp0Kbg+Ot4l03ZhXkjz mLPOqN0AksRlxy6ERMMwSOi1VmeCc4pKP7s+8GF0jUqOkGzoWVtrnm0PYSCRjuMRgr qJyJqZz4+euLr8SsrH/8xA4WcW3h4C2zy3amqSBuzJqwZXj/QXGEhIvi6IVkUNmhYf 0RnGhZbLj9dFtGY9Jbgqluz+vmztWs5tp6yIGC6gvBZJfK3Mu4mk+7J77EGNyW/58I XXgg/plugTmXKL3QTgxM00J5sF4C0TRYMa9lEOkXQIW13aPoLG+6mlda4gyS4pHht3 EhD7adYovuiiQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Giulio Benetti , Jim Reinhart , James Autry , Matthew Maron , Haibo Chen , Adrian Hunter , Ulf Hansson , Sasha Levin , shawnguo@kernel.org, linux-imx@nxp.com, linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 6.4 26/41] mmc: sdhci-esdhc-imx: improve ESDHC_FLAG_ERR010450 Date: Fri, 8 Sep 2023 14:15:40 -0400 Message-Id: <20230908181555.3459640-26-sashal@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230908181555.3459640-1-sashal@kernel.org> References: <20230908181555.3459640-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.4.15 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Giulio Benetti [ Upstream commit 5ae4b0d8875caa44946e579420c7fd5740d58653 ] Errata ERR010450 only shows up if voltage is 1.8V, but if the device is supplied by 3v3 the errata can be ignored. So let's check for if quirk SDHCI_QUIRK2_NO_1_8_V is defined or not before limiting the frequency. Cc: Jim Reinhart Cc: James Autry Cc: Matthew Maron Signed-off-by: Giulio Benetti Acked-by: Haibo Chen Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/20230811214853.8623-1-giulio.benetti@benettiengineering.com Signed-off-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/mmc/host/sdhci-esdhc-imx.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index eebf94604a7fd..cddecc1e1ac2f 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -171,8 +171,8 @@ #define ESDHC_FLAG_HS400 BIT(9) /* * The IP has errata ERR010450 - * uSDHC: Due to the I/O timing limit, for SDR mode, SD card clock can't - * exceed 150MHz, for DDR mode, SD card clock can't exceed 45MHz. + * uSDHC: At 1.8V due to the I/O timing limit, for SDR mode, SD card + * clock can't exceed 150MHz, for DDR mode, SD card clock can't exceed 45MHz. */ #define ESDHC_FLAG_ERR010450 BIT(10) /* The IP supports HS400ES mode */ @@ -961,7 +961,8 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, | ESDHC_CLOCK_MASK); sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); - if (imx_data->socdata->flags & ESDHC_FLAG_ERR010450) { + if ((imx_data->socdata->flags & ESDHC_FLAG_ERR010450) && + (!(host->quirks2 & SDHCI_QUIRK2_NO_1_8_V))) { unsigned int max_clock; max_clock = imx_data->is_ddr ? 45000000 : 150000000; -- 2.40.1