From patchwork Fri Oct 25 08:03:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic Desroches X-Patchwork-Id: 11211613 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2AA2213BD for ; Fri, 25 Oct 2019 08:02:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 130E1206DD for ; Fri, 25 Oct 2019 08:02:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406055AbfJYICs (ORCPT ); Fri, 25 Oct 2019 04:02:48 -0400 Received: from esa6.microchip.iphmx.com ([216.71.154.253]:47028 "EHLO esa6.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405453AbfJYICr (ORCPT ); Fri, 25 Oct 2019 04:02:47 -0400 Received-SPF: Pass (esa6.microchip.iphmx.com: domain of Ludovic.Desroches@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa6.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="Ludovic.Desroches@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa6.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa6.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa6.microchip.iphmx.com; dkim=none (message not signed) header.i=none; spf=Pass smtp.mailfrom=Ludovic.Desroches@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: okAxLpkf03Y4C1W42prpxYb3sZ9jXvYf+/H5BOw1AlH/UK9Ukdc772kia6FUmXKPJmz3vYJ6OI TdTz7agHB0yLDhBZ/Pr9MnHS0rahBRSQvDyRYhrBoSYkQlC7vAFOwVUnQIMS3Y4tmgrqdzKdyw L+aOmGlhuCFwKgbbNUhn8HwUlrWZhBpa3omZvp4qQ6akXva79rvVOG4au1c0N1kelNP33sJPO9 JWRJsAGfEOIV2PJYzv9kP9ttUvaxFiWwdu8ZPjtxuA9e4mcmdo36jM0uNdmKVgvIlMnAw0KZWb tUs= X-IronPort-AV: E=Sophos;i="5.68,228,1569308400"; d="scan'208";a="51523132" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 25 Oct 2019 01:02:46 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 25 Oct 2019 01:02:43 -0700 Received: from M43218.corp.atmel.com (10.10.85.251) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Fri, 25 Oct 2019 01:02:41 -0700 From: Ludovic Desroches To: , , CC: , , , , , , , , , "Ludovic Desroches" , Rob Herring Subject: [PATCH v3 1/3] dt-bindings: sdhci-of-at91: new compatible string and update properties Date: Fri, 25 Oct 2019 10:03:42 +0200 Message-ID: <20191025080344.15492-1-ludovic.desroches@microchip.com> X-Mailer: git-send-email 2.24.0.rc0 MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org There is a new compatible string for the SAM9X60 sdhci device. It involves an update of the properties about the clocks stuff. Signed-off-by: Ludovic Desroches Reviewed-by: Rob Herring --- Changes: - v3: rebase due to conflict with Nicolas' patch - v2: remove the extra example and fix node label .../devicetree/bindings/mmc/sdhci-atmel.txt | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt index 503c6dbac1b2..69edfd4d3922 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt @@ -5,11 +5,16 @@ Documentation/devicetree/bindings/mmc/mmc.txt and the properties used by the sdhci-of-at91 driver. Required properties: -- compatible: Must be "atmel,sama5d2-sdhci". +- compatible: Must be "atmel,sama5d2-sdhci" or "microchip,sam9x60-sdhci". - clocks: Phandlers to the clocks. -- clock-names: Must be "hclock", "multclk", "baseclk"; +- clock-names: Must be "hclock", "multclk", "baseclk" for + "atmel,sama5d2-sdhci". + Must be "hclock", "multclk" for "microchip,sam9x60-sdhci". Optional properties: +- assigned-clocks: The same with "multclk". +- assigned-clock-rates The rate of "multclk" in order to not rely on the + gck configuration set by previous components. - microchip,sdcal-inverted: when present, polarity on the SDCAL SoC pin is inverted. The default polarity for this signal is described in the datasheet. For instance on SAMA5D2, the pin is usually tied to the GND with a resistor @@ -17,10 +22,12 @@ Optional properties: Example: -sdmmc0: sdio-host@a0000000 { +mmc0: sdio-host@a0000000 { compatible = "atmel,sama5d2-sdhci"; reg = <0xa0000000 0x300>; interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&sdmmc0_hclk>, <&sdmmc0_gclk>, <&main>; clock-names = "hclock", "multclk", "baseclk"; + assigned-clocks = <&sdmmc0_gclk>; + assigned-clock-rates = <480000000>; }; From patchwork Fri Oct 25 08:03:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic Desroches X-Patchwork-Id: 11211615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B59E9112C for ; Fri, 25 Oct 2019 08:02:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 945BE206DD for ; Fri, 25 Oct 2019 08:02:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437655AbfJYICw (ORCPT ); Fri, 25 Oct 2019 04:02:52 -0400 Received: from esa4.microchip.iphmx.com ([68.232.154.123]:50087 "EHLO esa4.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437649AbfJYICv (ORCPT ); Fri, 25 Oct 2019 04:02:51 -0400 Received-SPF: Pass (esa4.microchip.iphmx.com: domain of Ludovic.Desroches@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="Ludovic.Desroches@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa4.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa4.microchip.iphmx.com; dkim=none (message not signed) header.i=none; spf=Pass smtp.mailfrom=Ludovic.Desroches@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: ZPTuwjtJqyK8Y1nyiY7YH9sQ6o33aPFhcnRbwrssSHnp/yC/ar+XDrBOxhmCPMqdiLMRYbCNlP RUCpnHUtBHsARBYb0vZ9NXcZLyAHYswRuI3ppwfVOvYnV0Ufpyoj2pQtaTwaboCRwFYCNGYKXX 2rhFeKsGu/CZ7k/7xRIZ39LhL0S79n1Bhf+C7n0WLgkz2xPL21YD4H+DsI//ovtUTBu+iGorTy srILICYvVekKWMlEfsqQ96gHm/5uF455cEWPVHfZ8ZcNVJ8BkHAIaFRxiX/HZNpycSlNXdXlDB Rt0= X-IronPort-AV: E=Sophos;i="5.68,228,1569308400"; d="scan'208";a="52935695" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 25 Oct 2019 01:02:50 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 25 Oct 2019 01:02:46 -0700 Received: from M43218.corp.atmel.com (10.10.85.251) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Fri, 25 Oct 2019 01:02:44 -0700 From: Ludovic Desroches To: , , CC: , , , , , , , , , "Ludovic Desroches" Subject: [PATCH v3 2/3] mmc: sdhci-of-at91: rework clocks management to support SAM9x60 device Date: Fri, 25 Oct 2019 10:03:43 +0200 Message-ID: <20191025080344.15492-2-ludovic.desroches@microchip.com> X-Mailer: git-send-email 2.24.0.rc0 In-Reply-To: <20191025080344.15492-1-ludovic.desroches@microchip.com> References: <20191025080344.15492-1-ludovic.desroches@microchip.com> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org In the SAM9x60 SoC, there are only two clocks instead of three for the SDHCI device. The base clk is no longer provided, it is generated internally from the mult clk. The values of the base clk and mul in the capabilities registers may not reflect the reality as the mult clk is a programmable clock which can take several rates. As we can't trust those values, take them from the clock tree and update the capabilities according to. As we can have the same pitfall, in some cases, with the SAMA5D2 Soc, stop relying on capabilities too. Signed-off-by: Ludovic Desroches --- Changes: - v3: none - v2: none drivers/mmc/host/sdhci-of-at91.c | 105 +++++++++++++++++-------------- 1 file changed, 58 insertions(+), 47 deletions(-) diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 9571c4a882a9..7477471dac00 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -33,7 +33,14 @@ #define SDHCI_AT91_PRESET_COMMON_CONF 0x400 /* drv type B, programmable clock mode */ +struct sdhci_at91_soc_data { + const struct sdhci_pltfm_data *pdata; + bool baseclk_is_generated_internally; + unsigned int divider_for_baseclk; +}; + struct sdhci_at91_priv { + const struct sdhci_at91_soc_data *soc_data; struct clk *hclock; struct clk *gck; struct clk *mainck; @@ -141,12 +148,24 @@ static const struct sdhci_ops sdhci_at91_sama5d2_ops = { .set_power = sdhci_at91_set_power, }; -static const struct sdhci_pltfm_data soc_data_sama5d2 = { +static const struct sdhci_pltfm_data sdhci_sama5d2_pdata = { .ops = &sdhci_at91_sama5d2_ops, }; +static const struct sdhci_at91_soc_data soc_data_sama5d2 = { + .pdata = &sdhci_sama5d2_pdata, + .baseclk_is_generated_internally = false, +}; + +static const struct sdhci_at91_soc_data soc_data_sam9x60 = { + .pdata = &sdhci_sama5d2_pdata, + .baseclk_is_generated_internally = true, + .divider_for_baseclk = 2, +}; + static const struct of_device_id sdhci_at91_dt_match[] = { { .compatible = "atmel,sama5d2-sdhci", .data = &soc_data_sama5d2 }, + { .compatible = "microchip,sam9x60-sdhci", .data = &soc_data_sam9x60 }, {} }; MODULE_DEVICE_TABLE(of, sdhci_at91_dt_match); @@ -156,50 +175,37 @@ static int sdhci_at91_set_clks_presets(struct device *dev) struct sdhci_host *host = dev_get_drvdata(dev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_at91_priv *priv = sdhci_pltfm_priv(pltfm_host); - int ret; unsigned int caps0, caps1; unsigned int clk_base, clk_mul; - unsigned int gck_rate, real_gck_rate; + unsigned int gck_rate, clk_base_rate; unsigned int preset_div; - /* - * The mult clock is provided by as a generated clock by the PMC - * controller. In order to set the rate of gck, we have to get the - * base clock rate and the clock mult from capabilities. - */ clk_prepare_enable(priv->hclock); caps0 = readl(host->ioaddr + SDHCI_CAPABILITIES); caps1 = readl(host->ioaddr + SDHCI_CAPABILITIES_1); - clk_base = (caps0 & SDHCI_CLOCK_V3_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT; - clk_mul = (caps1 & SDHCI_CLOCK_MUL_MASK) >> SDHCI_CLOCK_MUL_SHIFT; - gck_rate = clk_base * 1000000 * (clk_mul + 1); - ret = clk_set_rate(priv->gck, gck_rate); - if (ret < 0) { - dev_err(dev, "failed to set gck"); - clk_disable_unprepare(priv->hclock); - return ret; - } - /* - * We need to check if we have the requested rate for gck because in - * some cases this rate could be not supported. If it happens, the rate - * is the closest one gck can provide. We have to update the value - * of clk mul. - */ - real_gck_rate = clk_get_rate(priv->gck); - if (real_gck_rate != gck_rate) { - clk_mul = real_gck_rate / (clk_base * 1000000) - 1; - caps1 &= (~SDHCI_CLOCK_MUL_MASK); - caps1 |= ((clk_mul << SDHCI_CLOCK_MUL_SHIFT) & - SDHCI_CLOCK_MUL_MASK); - /* Set capabilities in r/w mode. */ - writel(SDMMC_CACR_KEY | SDMMC_CACR_CAPWREN, - host->ioaddr + SDMMC_CACR); - writel(caps1, host->ioaddr + SDHCI_CAPABILITIES_1); - /* Set capabilities in ro mode. */ - writel(0, host->ioaddr + SDMMC_CACR); - dev_info(dev, "update clk mul to %u as gck rate is %u Hz\n", - clk_mul, real_gck_rate); - } + + gck_rate = clk_get_rate(priv->gck); + if (priv->soc_data->baseclk_is_generated_internally) + clk_base_rate = gck_rate / priv->soc_data->divider_for_baseclk; + else + clk_base_rate = clk_get_rate(priv->mainck); + + clk_base = clk_base_rate / 1000000; + clk_mul = gck_rate / clk_base_rate - 1; + + caps0 &= (~SDHCI_CLOCK_V3_BASE_MASK); + caps0 |= ((clk_base << SDHCI_CLOCK_BASE_SHIFT) & SDHCI_CLOCK_V3_BASE_MASK); + caps1 &= (~SDHCI_CLOCK_MUL_MASK); + caps1 |= ((clk_mul << SDHCI_CLOCK_MUL_SHIFT) & SDHCI_CLOCK_MUL_MASK); + /* Set capabilities in r/w mode. */ + writel(SDMMC_CACR_KEY | SDMMC_CACR_CAPWREN, host->ioaddr + SDMMC_CACR); + writel(caps0, host->ioaddr + SDHCI_CAPABILITIES_1); + writel(caps1, host->ioaddr + SDHCI_CAPABILITIES_1); + /* Set capabilities in ro mode. */ + writel(0, host->ioaddr + SDMMC_CACR); + + dev_info(dev, "update clk mul to %u as gck rate is %u Hz and clk base is %u Hz\n", + clk_mul, gck_rate, clk_base_rate); /* * We have to set preset values because it depends on the clk_mul @@ -207,19 +213,19 @@ static int sdhci_at91_set_clks_presets(struct device *dev) * maximum sd clock value is 120 MHz instead of 208 MHz. For that * reason, we need to use presets to support SDR104. */ - preset_div = DIV_ROUND_UP(real_gck_rate, 24000000) - 1; + preset_div = DIV_ROUND_UP(gck_rate, 24000000) - 1; writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div, host->ioaddr + SDHCI_PRESET_FOR_SDR12); - preset_div = DIV_ROUND_UP(real_gck_rate, 50000000) - 1; + preset_div = DIV_ROUND_UP(gck_rate, 50000000) - 1; writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div, host->ioaddr + SDHCI_PRESET_FOR_SDR25); - preset_div = DIV_ROUND_UP(real_gck_rate, 100000000) - 1; + preset_div = DIV_ROUND_UP(gck_rate, 100000000) - 1; writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div, host->ioaddr + SDHCI_PRESET_FOR_SDR50); - preset_div = DIV_ROUND_UP(real_gck_rate, 120000000) - 1; + preset_div = DIV_ROUND_UP(gck_rate, 120000000) - 1; writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div, host->ioaddr + SDHCI_PRESET_FOR_SDR104); - preset_div = DIV_ROUND_UP(real_gck_rate, 50000000) - 1; + preset_div = DIV_ROUND_UP(gck_rate, 50000000) - 1; writew(SDHCI_AT91_PRESET_COMMON_CONF | preset_div, host->ioaddr + SDHCI_PRESET_FOR_DDR50); @@ -314,7 +320,7 @@ static const struct dev_pm_ops sdhci_at91_dev_pm_ops = { static int sdhci_at91_probe(struct platform_device *pdev) { const struct of_device_id *match; - const struct sdhci_pltfm_data *soc_data; + const struct sdhci_at91_soc_data *soc_data; struct sdhci_host *host; struct sdhci_pltfm_host *pltfm_host; struct sdhci_at91_priv *priv; @@ -325,17 +331,22 @@ static int sdhci_at91_probe(struct platform_device *pdev) return -EINVAL; soc_data = match->data; - host = sdhci_pltfm_init(pdev, soc_data, sizeof(*priv)); + host = sdhci_pltfm_init(pdev, soc_data->pdata, sizeof(*priv)); if (IS_ERR(host)) return PTR_ERR(host); pltfm_host = sdhci_priv(host); priv = sdhci_pltfm_priv(pltfm_host); + priv->soc_data = soc_data; priv->mainck = devm_clk_get(&pdev->dev, "baseclk"); if (IS_ERR(priv->mainck)) { - dev_err(&pdev->dev, "failed to get baseclk\n"); - return PTR_ERR(priv->mainck); + if (soc_data->baseclk_is_generated_internally) { + priv->mainck = NULL; + } else { + dev_err(&pdev->dev, "failed to get baseclk\n"); + return PTR_ERR(priv->mainck); + } } priv->hclock = devm_clk_get(&pdev->dev, "hclock"); From patchwork Fri Oct 25 08:03:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic Desroches X-Patchwork-Id: 11211619 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5CFDB1515 for ; Fri, 25 Oct 2019 08:03:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 456A3206DD for ; Fri, 25 Oct 2019 08:03:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407502AbfJYIC7 (ORCPT ); Fri, 25 Oct 2019 04:02:59 -0400 Received: from esa4.microchip.iphmx.com ([68.232.154.123]:50108 "EHLO esa4.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405453AbfJYIC7 (ORCPT ); Fri, 25 Oct 2019 04:02:59 -0400 Received-SPF: Pass (esa4.microchip.iphmx.com: domain of Ludovic.Desroches@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="Ludovic.Desroches@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa4.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa4.microchip.iphmx.com; envelope-from="Ludovic.Desroches@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa4.microchip.iphmx.com; dkim=none (message not signed) header.i=none; spf=Pass smtp.mailfrom=Ludovic.Desroches@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: Wk5VDaxaa04ZpXepyN7l+LRq4sXtuTcFje32+veLdWTvipsU7orBg/qzpAw5tsHiYqYKnknM47 7l628LyAVaxgt7OMBt0qLjo4vAeR1r6cyBsTyiw0Ibfcxuk5gSqoMlLvaPXYX8vqsFB9rMurJ8 nigqOiPfbg0pUv3a2cjVxsGrl2n0mtaCDVb8JbWAmde4/QomptLuqogolaiZLxj/hkRGEqZ5Ks Qn7D2KSC4iL6xT1CFLYSoskg2GXbbuNMaXZYwttycp8iHAolMc5RWF4lAxG3fdW+zXOAfAOwpt k0A= X-IronPort-AV: E=Sophos;i="5.68,228,1569308400"; d="scan'208";a="52935735" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 25 Oct 2019 01:02:58 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Fri, 25 Oct 2019 01:02:49 -0700 Received: from M43218.corp.atmel.com (10.10.85.251) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Fri, 25 Oct 2019 01:02:47 -0700 From: Ludovic Desroches To: , , CC: , , , , , , , , , "Ludovic Desroches" Subject: [PATCH v3 3/3] ARM: dts: at91: sama5d2: set the sdmmc gclk frequency Date: Fri, 25 Oct 2019 10:03:44 +0200 Message-ID: <20191025080344.15492-3-ludovic.desroches@microchip.com> X-Mailer: git-send-email 2.24.0.rc0 In-Reply-To: <20191025080344.15492-1-ludovic.desroches@microchip.com> References: <20191025080344.15492-1-ludovic.desroches@microchip.com> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Set the frequency of the generated clock used by sdmmc devices in order to not rely on the configuration done by previous components. Signed-off-by: Ludovic Desroches --- Changes: - v3: none - v2: none arch/arm/boot/dts/sama5d2.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index fa3b9c30a63a..f013c3562724 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -300,6 +300,8 @@ sdmmc0: sdio-host@a0000000 { interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&pmc PMC_TYPE_PERIPHERAL 31>, <&pmc PMC_TYPE_GCK 31>, <&pmc PMC_TYPE_CORE PMC_MAIN>; clock-names = "hclock", "multclk", "baseclk"; + assigned-clocks = <&pmc PMC_TYPE_GCK 31>; + assigned-clock-rates = <480000000>; status = "disabled"; }; @@ -309,6 +311,8 @@ sdmmc1: sdio-host@b0000000 { interrupts = <32 IRQ_TYPE_LEVEL_HIGH 0>; clocks = <&pmc PMC_TYPE_PERIPHERAL 32>, <&pmc PMC_TYPE_GCK 32>, <&pmc PMC_TYPE_CORE PMC_MAIN>; clock-names = "hclock", "multclk", "baseclk"; + assigned-clocks = <&pmc PMC_TYPE_GCK 32>; + assigned-clock-rates = <480000000>; status = "disabled"; };