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[209.85.220.65]) by mx.google.com with SMTPS id m16sor3640335pls.2.2020.06.19.20.28.34 for (Google Transport Security); Fri, 19 Jun 2020 20:28:34 -0700 (PDT) Received-SPF: pass (google.com: domain of sunil@amarulasolutions.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; X-Received: by 2002:a17:902:6a83:: with SMTP id n3mr10826477plk.42.1592623714598; Fri, 19 Jun 2020 20:28:34 -0700 (PDT) Received: from localhost.localdomain ([42.111.160.67]) by smtp.gmail.com with ESMTPSA id 67sm6182262pga.44.2020.06.19.20.28.29 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Jun 2020 20:28:34 -0700 (PDT) From: Suniel Mahesh To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, gregkh@linuxfoundation.org, sashal@kernel.org Cc: jagan@amarulasolutions.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-amarula@amarulasolutions.com, Michael Trimarchi Subject: [PATCH v2] arch: arm: imx6qdl-icore: Fix OTG_ID pin and sdcard detect Date: Sat, 20 Jun 2020 08:58:16 +0530 Message-Id: <1592623696-21485-1-git-send-email-sunil@amarulasolutions.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: X-Original-Sender: sunil@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=pK8cqQB0; spf=pass (google.com: domain of sunil@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=sunil@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , From: Michael Trimarchi The current pin muxing scheme muxes GPIO_1 pad for USB_OTG_ID because of which when card is inserted, usb otg is enumerated and the card is never detected. [ 64.492645] cfg80211: failed to load regulatory.db [ 64.492657] imx-sdma 20ec000.sdma: external firmware not found, using ROM firmware [ 76.343711] ci_hdrc ci_hdrc.0: EHCI Host Controller [ 76.349742] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 2 [ 76.388862] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 [ 76.396650] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.08 [ 76.405412] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 76.412763] usb usb2: Product: EHCI Host Controller [ 76.417666] usb usb2: Manufacturer: Linux 5.8.0-rc1-next-20200618 ehci_hcd [ 76.424623] usb usb2: SerialNumber: ci_hdrc.0 [ 76.431755] hub 2-0:1.0: USB hub found [ 76.435862] hub 2-0:1.0: 1 port detected The TRM mentions GPIO_1 pad should be muxed/assigned for card detect and ENET_RX_ER pad for USB_OTG_ID for proper operation. This patch fixes pin muxing as per TRM and is tested on a i.Core 1.5 MX6 DL SOM. [ 22.449165] mmc0: host does not support reading read-only switch, assuming write-enable [ 22.459992] mmc0: new high speed SDHC card at address 0001 [ 22.469725] mmcblk0: mmc0:0001 EB1QT 29.8 GiB [ 22.478856] mmcblk0: p1 p2 Signed-off-by: Michael Trimarchi Signed-off-by: Suniel Mahesh --- Changes for v2: - Changed patch description as suggested by Michael Trimarchi to make it more readable/understandable. --- arch/arm/boot/dts/imx6qdl-icore.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6qdl-icore.dtsi b/arch/arm/boot/dts/imx6qdl-icore.dtsi index 756f3a9..12997da 100644 --- a/arch/arm/boot/dts/imx6qdl-icore.dtsi +++ b/arch/arm/boot/dts/imx6qdl-icore.dtsi @@ -397,7 +397,7 @@ pinctrl_usbotg: usbotggrp { fsl,pins = < - MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059 + MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID 0x17059 >; }; @@ -409,6 +409,7 @@ MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17070 MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17070 MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17070 + MX6QDL_PAD_GPIO_1__GPIO1_IO01 0x1b0b0 >; };