• Michael Trimarchi's avatar
    ARM: dts: imx6qdl-icore: Fix OTG_ID pin and sdcard detect · 4a601da9
    Michael Trimarchi authored
    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
    
    Fixes: 6df11287 ("ARM: dts: imx6q: Add Engicam i.CoreM6 Quad/Dual initial support")
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarMichael Trimarchi <michael@amarulasolutions.com>
    Signed-off-by: default avatarSuniel Mahesh <sunil@amarulasolutions.com>
    Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
    4a601da9
imx6qdl-icore.dtsi 9.47 KB