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Attempting to boot my Udoo Dual and Quad with mainline hangs during boot
after printing:
[ 3.270471] imx_usb 2184000.usb: No over current polarity defined
[ 3.922502] mxs_phy 20c9000.usbphy: Data pin can't make good contact.
[ 3.940097] imx_usb 2184200.usb: No over current polarity defined
where imx_usb 2184200.usb is usbh1 in the DT. Adding debug prints to the
code seems to show that we lock up at the first read in usbmisc_imx6q_init()
which in combination with the above logging about the USB controllers
suggests that we lock up on the first read in usbmisc_imx6q_init(). Looking
at some of the other i.MX6 boards and the warning messages that are being
printed suggests that there is bitrot in the DTS for the device so disable
it for now, with it disabled the board boots successfully. Clearly this is
not a real fix, but it does allow some use of the board with mainline.
Similar behaviour is seen all the way back as far as v4.19, I tried going
back to when the board was added but had toolchain issues. Vendor provided
binaries seem fine on the boards so it seems likely that the hardware is
fine and the issue is with some combination of the DT and kernel. This
should obviously be resolved properly but for now this at least allows
the kernel to boot with reduced functionality on these systems.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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GPIO7_IO00 is used as SD card detect.
Properly describe this in the devicetree.
Fixes: 40cdaa542cf0 ("ARM: dts: imx6q-udoo: Add initial board support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Commit bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the
KSZ9031 PHY") fixed micrel phy driver adding proper support for phy
modes. Adapt imx6q-udoo board phy settings : explicitly set required
delay configuration using "rgmii-id".
Fixes: cbd54fe0b2bc ("ARM: dts: imx6dl-udoo: Add board support based off imx6q-udoo")
Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add Pincfgs to enable the i.MX6's OTG feature for UDOO
Signed-off-by: Markus Kueffner <kueffner.markus@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Boards based on imx6qdl have duplicate memory nodes:
- One coming from the board device tree file: memory@
- One coming from the imx6qdl.dtsi file.
Fix the duplication by removing the memory node from
the imx6qdl.dtsi file and by adding 'device_type = "memory";'
in the board Device Tree.
Converted using the following command:
perl -p0777i -e 's/memory\@10000000 \{\n/memory\@10000000 \{\n\t\tdevice_type = \"memory\";\n/m' `find ./arch/arm/boot/dts -name "imx6*"``
Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add Pincfgs for UART4 to enable Communication with the onboard SAM3X
Signed-off-by: Markus Kueffner <kueffner.markus@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Adopt the SPDX license identifier headers to ease license compliance
management.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Fix the following warnings from dtc by adding the unit name to memory
nodes:
Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name
Converted using the following command:
perl -p0777i -e 's/memory \{\n\t\treg = \<0x+([0-9a-f])/memory\@$1$\0000000 \{\n\t\treg = <0x$1/m' `find ./arch/arm/boot/dts -name "imx*"`
The files below were manually fixed:
-imx1-ads.dts
-imx1-apf9328.dts
-imx6q-pistachio.dts
Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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UDOO board has a possibility to disable most of imx6 SoC power supplies via
"EN_5V" signal, which is connected to "NANDF_D4" pad.
This reduces current consumption after shutdown from ~350 mA to ~40 mA and
prevents a SoC watchdog from starting it again on its own after the
watchdog timeout expires (previously it was not possible to shut down the
SoC permanently if its watchdog was ever enabled since it was still ticking
after the shutdown).
Unfortunately, this does not extinguish the "Power" LED (as it is powered
from an always-on voltage regulator).
To power the SoC up again press the power button (SW2, the one with a long
shaft).
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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AC'97 interface RXD and TXC pins are only used as SoC inputs, let's disable
pad drivers for them so we will be protected if, for example, TCLKDIR is
set by mistake in AUDMUX and causes TXC pin to be configured as an output.
This also changes pull direction on these pins from pull-up to pull-down
to match what the board AC'97 CODEC chip (VT1613) has on these pins.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Several dts files set a bit in the SPEED field for pads
RGMII_{R,T}{XC,D0,D1,D2,D3,X_CTL}, but that doesn't exist. Writing there
doesn't have an effect and the bit reads as zero.
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Using "IMX6QDL_CLK_CKO" for the clock is easier to read instead of
the hardcoded clock number.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The official UDOO board kit has 7 and 15.6 inch touchscreen LCD panels
as options.
This patch adds support for 7 inch panel only, but the 15.6 inch one
should be easy to add using the same regulator, backlight device and
LVDS channel.
Since this panel is an option for UDOO board it is disabled by default
and can be enabled (for example) by the following U-Boot commands:
fdt set backlight status okay
fdt set panelchan status okay
fdt set panel7 status okay
fdt set touchscreenp7 status okay
The LVDS channels is also disabled by default to avoid warning from its
driver.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add sound support in UDOO board DT file.
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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For more information about the Udoo boards:
http://www.udoo.org/
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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