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Thu, 8 Aug 2019 08:35:40 +0000 From: To: , , , , , , , , Subject: [PATCH 1/2] mmc: sdhci-of-at91: add quirk for broken HS200 Thread-Topic: [PATCH 1/2] mmc: sdhci-of-at91: add quirk for broken HS200 Thread-Index: AQHVTcRCu4nz/dUi80G6GVwFCxrwfA== Date: Thu, 8 Aug 2019 08:35:40 +0000 Message-ID: <1565252928-28994-1-git-send-email-eugen.hristev@microchip.com> Accept-Language: en-US, ro-RO Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VE1PR08CA0020.eurprd08.prod.outlook.com (2603:10a6:803:104::33) To DM5PR11MB1242.namprd11.prod.outlook.com (2603:10b6:3:14::8) x-mailer: git-send-email 2.7.4 x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [94.177.32.154] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: bc942a3d-4e94-48a7-3564-08d71bdb64e1 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eugen.Hristev@microchip.com 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 From: Eugen Hristev HS200 is not implemented in the driver, but the controller claims it through caps. Remove it via quirk. Without this quirk, the mmc core will try to enable hs200, which will fail, and the eMMC initialization will fail. Signed-off-by: Eugen Hristev Acked-by: Ludovic Desroches Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-of-at91.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 57fe3b2..3a8c6d8 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -370,6 +370,9 @@ static int sdhci_at91_probe(struct platform_device *pdev) pm_runtime_set_autosuspend_delay(&pdev->dev, 50); pm_runtime_use_autosuspend(&pdev->dev); + /* HS200 is broken at this moment */ + host->quirks2 = SDHCI_QUIRK2_BROKEN_HS200; + ret = sdhci_add_host(host); if (ret) goto pm_runtime_disable; From patchwork Thu Aug 8 08:35:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 11083547 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 67F621399 for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eugen.Hristev@microchip.com 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 From: Eugen Hristev Add mmc capabilities for SDMMC0 for this board. With this enabled, eMMC connected card is detected as: mmc0: new DDR MMC card at address 0001 Signed-off-by: Eugen Hristev Acked-by: Ludovic Desroches --- arch/arm/boot/dts/at91-sama5d27_som1_ek.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts index 149e539..194b3a3 100644 --- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts +++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts @@ -54,6 +54,7 @@ sdmmc0: sdio-host@a0000000 { bus-width = <8>; + mmc-ddr-3_3v; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_sdmmc0_default>; status = "okay";