Hi Sergio,
On Wed, 23 Dec 2020 at 17:24, Sergio Sota <[email protected]> wrote:
>
> Hi Clement,
>
> you mean the sun5i.dtsi device tree patch? we added the mali gpu support and
> also change the frontend compatible to "allwinner,sun4i-a10-display-frontend"
> We are not experts but if you are confident enough sure we can send a patch to
> linux ML :-) but the rest of things (custom lcd panel, custom board, etc.) is
> specific to our custom system. Besides there is something wrong, we still have
> problems with OpenGL apps, that crush without reason with a Segmentation Fault
> (we think is something mesa3d/x11 related, as modetest and kmscube works but
> you never know...)
Yes one patch for the Mali node and one patch to have
"allwinner,sun4i-a10-display-frontend" as fallback.
fe0: display-frontend@1e00000 {
compatible = "allwinner,sun5i-a13-display-frontend",
"allwinner,sun4i-a10-display-frontend";
The assigned clock-rate is a bit high, you could try with 320000000
which is the vendor clock.
Regards,
Clement
>
> Best Regards,
> Sergio Sota
>
> Here is the suggested linux ML patch file "sun5i-gpu-frontend-support.patch"
> =================================================================
> diff -Naur linux-old/arch/arm/boot/dts/sun5i.dtsi
> linux-new/arch/arm/boot/dts/sun5i.dtsi
> --- linux-old/arch/arm/boot/dts/sun5i.dtsi 2020-11-24 13:39:15.000000000
> +0100
> +++ linux-new/arch/arm/boot/dts/sun5i.dtsi 2020-12-23 10:12:57.950313393
> +0100
> @@ -726,6 +726,18 @@
> #size-cells = <0>;
> };
>
> + mali: gpu@1c40000 {
> + compatible = "allwinner,sun4i-a10-mali", "arm,mali-400";
> + reg = <0x01c40000 0x10000>;
> + interrupts = <69>, <70>, <71>, <72>, <73>;
> + interrupt-names = "gp", "gpmmu", "pp0", "ppmmu0", "pmu";
> + clocks = <&ccu CLK_AHB_GPU>, <&ccu CLK_GPU>;
> + clock-names = "bus", "core";
> + resets = <&ccu RST_GPU>;
> + assigned-clocks = <&ccu CLK_GPU>;
> + assigned-clock-rates = <384000000>;
> + };
> +
> timer@1c60000 {
> compatible = "allwinner,sun5i-a13-hstimer";
> reg = <0x01c60000 0x1000>;
> @@ -734,7 +746,7 @@
> };
>
> fe0: display-frontend@1e00000 {
> - compatible = "allwinner,sun5i-a13-display-frontend";
> + compatible = "allwinner,sun4i-a10-display-frontend";
> reg = <0x01e00000 0x20000>;
> interrupts = <47>;
> clocks = <&ccu CLK_DE_FE>, <&ccu CLK_DE_FE>,
> =================================================================
>
> El martes, 22 de diciembre de 2020 a las 23:03:02 UTC+1, [email protected]
> escribió:
>>
>> Hi Sergio,
>>
>>
>> Le mar. 22 déc. 2020 à 17:50, Sergio Sota <[email protected]> a écrit :
>>>
>>> Hi Clement, Chen-Yu Tsai and Jernej Škrabec,
>>>
>>> the last question was of topic (as the A13SOM drm driver support was solved)
>>
>>
>> As the DRM issue is solved by using some patches could you send those
>> patches to linux ML ?
>>
>> Thanks Clément
>>
>>> but just to complete here are our findings and solution to this issue.
>>>
>>> we finally found the problem: x11-server was compiled without glamor driver.
>>> Before we enabled glamor we have only software rendering on x11, but
>>> checking
>>> mesa3d documentation: to use OpenGL with Lima driver and x11 there is needed
>>> modesetting & glamor drivers (the last one where missed by a libepoxy
>>> library
>>> dependency) Then the message "libEGL warning: DRI2: failed to authenticate"
>>> no
>>> longer appears... but now all OpenGL apps crash (with a "Segmentation
>>> fault")
>>> We checked the /tmp/Xorg.0.log file and found only one error message:
>>>
>>> ...
>>> (EE) AIGLX error: sun4i-drm does not export required DRI extension
>>> (II) IGLX: Loaded and initialized swrast
>>> ...
>>>
>>> The solution was found thanks to the following post, short story: the
>>> xserver
>>> doesn't recognize drivers with hyphen in the name (sun4i-drm), we use xorg
>>> version 1.20.9 and have found there is needed a patch (located in the post)
>>>
>>> "https://forum.clockworkpi.com/t/apt-full-upgrade-getting-the-new-software-updates-from-debian/5664";
>>>
>>> Once we aplied the patch there are no more error messages on Xorg.0.log
>>>
>>> ...
>>> (II) AIGLX: Loaded and initialized sun4i-drm
>>> (II) GLX: Initialized DRI2 GL provider for screen 0
>>> ...
>>>
>>> All seems to be fine, but OpenGL apps still crash. If we use kmscube test
>>> (after killing xorg server to permit the access) the app works fine (60fps)
>>>
>>> We have reported this issue to the mesa3d-users mail list and will keep on
>>> searching for a solution. Any help or clue would be greatly appreciated.
>>> Thanks for your help and time!
>>>
>>> Best Regards,
>>> Sergio Sota
>>>
>>> Here are our xorg.conf and /tmp/Xorg.0.log
>>>
>>> ==============================================================================
>>> # Monitors represent physical monitors.
>>> Section "Monitor"
>>> Identifier "LCD-0"
>>> EndSection
>>>
>>> # Devices represent video cards or similars.
>>> #Section "Device"
>>> Identifier "FBDEV-0"
>>> #EndSection
>>>
>>> # Screen sections connect Devices to Monitors.
>>> Section "Screen"
>>> Identifier "SCREEN-0"
>>> Device "FBDEV-0"
>>> Monitor "LCD-0"
>>> EndSection
>>>
>>> # InputClass to add some options to the detected TouchScreen
>>> Section "InputClass"
>>> Identifier "LCDTS-0"
>>> Driver "evdev"
>>> MatchProduct "Goodix"
>>> # Option "TransformationMatrix" "0.587156 0 0 0 1 0 0 0 1"
>>> EndSection
>>>
>>> # OutputClass to add some options to the detected GPU
>>> Section "OutputClass"
>>> Identifier "LIMA-0"
>>> MatchDriver "sun4i-drm"
>>> Driver "modesetting"
>>> # Option "PrimaryGPU" "true"
>>> EndSection
>>>
>>> # ServerFlags add some configurations to ServerLayout.
>>> Section "ServerFlags"
>>> Option "BlankTime" "0"
>>> Option "StandbyTime" "0"
>>> Option "SuspendTime" "0"
>>> Option "OffTime" "0"
>>> Option "AutoAddGPU" "off"
>>> Option "Debug" "dmabuf_capable"
>>> EndSection
>>>
>>> # ServerLayout define input/output devices used for X server.
>>> Section "ServerLayout"
>>> Identifier "LAYOUT-0"
>>> Screen 0 "SCREEN-0"
>>> EndSection
>>> ==============================================================================
>>>
>>> ==============================================================================
>>> [ 6.913]
>>> X.Org X Server 1.20.9
>>> X Protocol Version 11, Revision 0
>>> [ 6.913] Build Operating System: Linux 4.15.0-115-generic x86_64
>>> [ 6.913] Current Operating System: Linux fanamoel-tk10 5.9.11 #1 SMP
>>> Mon Dec 21 15:09:42 CET 2020 armv7l
>>> [ 6.913] Kernel command line: console=ttyS0,115200 earlyprintk
>>> root=/dev/mmcblk0p2 rootwait
>>> [ 6.913] Build Date: 21 December 2020 05:18:05PM
>>> [ 6.913]
>>> [ 6.913] Current version of pixman: 0.40.0
>>> [ 6.913] Before reporting problems, check http://wiki.x.org
>>> to make sure that you have the latest version.
>>> [ 6.913] Markers: (--) probed, (**) from config file, (==) default
>>> setting,
>>> (++) from command line, (!!) notice, (II) informational,
>>> (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
>>> [ 6.913] (==) Log file: "/var/log/Xorg.0.0.log", Time: Thu Jan 1
>>> 00:00:06 1970
>>> [ 6.935] (==) Using config file: "/etc/X11/xorg.conf"
>>> [ 6.935] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
>>> [ 6.939] (==) ServerLayout "LAYOUT-0"
>>> [ 6.939] (**) |-->Screen "SCREEN-0" (0)
>>> [ 6.939] (**) | |-->Monitor "LCD-0"
>>> [ 6.946] (**) | |-->Device "FBDEV-0"
>>> [ 6.946] (**) Option "BlankTime" "0"
>>> [ 6.946] (**) Option "StandbyTime" "0"
>>> [ 6.946] (**) Option "SuspendTime" "0"
>>> [ 6.946] (**) Option "OffTime" "0"
>>> [ 6.946] (**) Option "AutoAddGPU" "off"
>>> [ 6.946] (**) Option "Debug" "dmabuf_capable"
>>> [ 6.946] (==) Automatically adding devices
>>> [ 6.946] (==) Automatically enabling devices
>>> [ 6.946] (**) Not automatically adding GPU devices
>>> [ 6.946] (==) Max clients allowed: 256, resource mask: 0x1fffff
>>> [ 6.960] (WW) The directory "/usr/share/fonts/X11//TTF/" does not exist.
>>> [ 6.960] Entry deleted from font path.
>>> [ 6.960] (WW) The directory "/usr/share/fonts/X11//OTF/" does not exist.
>>> [ 6.960] Entry deleted from font path.
>>> [ 6.960] (WW) The directory "/usr/share/fonts/X11//Type1/" does not
>>> exist.
>>> [ 6.960] Entry deleted from font path.
>>> [ 6.961] (WW) `fonts.dir' not found (or not valid) in
>>> "/usr/share/fonts/X11//100dpi/".
>>> [ 6.962] Entry deleted from font path.
>>> [ 6.962] (Run 'mkfontdir' on "/usr/share/fonts/X11//100dpi/").
>>> [ 6.963] (WW) `fonts.dir' not found (or not valid) in
>>> "/usr/share/fonts/X11//75dpi/".
>>> [ 6.963] Entry deleted from font path.
>>> [ 6.963] (Run 'mkfontdir' on "/usr/share/fonts/X11//75dpi/").
>>> [ 6.963] (==) FontPath set to:
>>> /usr/share/fonts/X11//misc/
>>> [ 6.963] (==) ModulePath set to "/usr/lib/xorg/modules"
>>> [ 6.963] (II) The server relies on udev to provide the list of input
>>> devices.
>>> If no devices become available, reconfigure udev or disable
>>> AutoAddDevices.
>>> [ 6.963] (II) Loader magic: 0x1dde08
>>> [ 6.963] (II) Module ABI versions:
>>> [ 6.963] X.Org ANSI C Emulation: 0.4
>>> [ 6.963] X.Org Video Driver: 24.1
>>> [ 6.963] X.Org XInput driver : 24.1
>>> [ 6.963] X.Org Server Extension : 10.0
>>> [ 6.965] (II) xfree86: Adding drm device (/dev/dri/card1)
>>> [ 6.965] (II) Platform probe for
>>> /sys/devices/platform/display-engine/drm/card1
>>> [ 6.982] (II) xfree86: Adding drm device (/dev/dri/card0)
>>> [ 6.982] (II) Platform probe for
>>> /sys/devices/platform/soc/1c40000.gpu/drm/card0
>>> [ 6.983] (**) OutputClass "LIMA-0" setting /dev/dri/card1 as PrimaryGPU
>>> [ 6.983] (II) LoadModule: "glx"
>>> [ 6.998] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
>>> [ 7.095] (II) Module glx: vendor="X.Org Foundation"
>>> [ 7.095] compiled for 1.20.9, module version = 1.0.0
>>> [ 7.095] ABI class: X.Org Server Extension, version 10.0
>>> [ 7.095] (II) Applying OutputClass "LIMA-0" to /dev/dri/card1
>>> [ 7.095] loading driver: modesetting
>>> [ 7.095] (==) Matched modesetting as autoconfigured driver 0
>>> [ 7.095] (==) Matched fbdev as autoconfigured driver 1
>>> [ 7.095] (==) Assigned the driver to the xf86ConfigLayout
>>> [ 7.095] (II) LoadModule: "modesetting"
>>> [ 7.096] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
>>> [ 7.102] (II) Module modesetting: vendor="X.Org Foundation"
>>> [ 7.102] compiled for 1.20.9, module version = 1.20.9
>>> [ 7.102] Module class: X.Org Video Driver
>>> [ 7.102] ABI class: X.Org Video Driver, version 24.1
>>> [ 7.102] (II) LoadModule: "fbdev"
>>> [ 7.103] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
>>> [ 7.105] (II) Module fbdev: vendor="X.Org Foundation"
>>> [ 7.105] compiled for 1.20.9, module version = 0.5.0
>>> [ 7.106] Module class: X.Org Video Driver
>>> [ 7.106] ABI class: X.Org Video Driver, version 24.1
>>> [ 7.106] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
>>> [ 7.106] (II) FBDEV: driver for framebuffer: fbdev
>>> [ 7.106] (++) using VT number 1
>>>
>>> [ 7.106] (WW) xf86OpenConsole: setpgid failed: Operation not permitted
>>> [ 7.115] (II) modeset(0): using drv /dev/dri/card1
>>> [ 7.115] (WW) Falling back to old probe method for fbdev
>>> [ 7.115] (II) Loading sub module "fbdevhw"
>>> [ 7.115] (II) LoadModule: "fbdevhw"
>>> [ 7.116] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
>>> [ 7.122] (II) Module fbdevhw: vendor="X.Org Foundation"
>>> [ 7.122] compiled for 1.20.9, module version = 0.0.2
>>> [ 7.122] ABI class: X.Org Video Driver, version 24.1
>>> [ 7.122] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card
>>> support
>>> [ 7.123] (II) modeset(0): Creating default Display subsection in Screen
>>> section
>>> "SCREEN-0" for depth/fbbpp 24/32
>>> [ 7.123] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
>>> [ 7.123] (II) Applying OutputClass "LIMA-0" options to /dev/dri/card1
>>> [ 7.123] (==) modeset(0): RGB weight 888
>>> [ 7.123] (==) modeset(0): Default visual is TrueColor
>>> [ 7.123] (II) Loading sub module "glamoregl"
>>> [ 7.123] (II) LoadModule: "glamoregl"
>>> [ 7.124] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
>>> [ 7.291] (II) Module glamoregl: vendor="X.Org Foundation"
>>> [ 7.291] compiled for 1.20.9, module version = 1.0.1
>>> [ 7.291] ABI class: X.Org ANSI C Emulation, version 0.4
>>> [ 8.083] (II) modeset(0): glamor X acceleration enabled on Mali400
>>> [ 8.083] (II) modeset(0): glamor initialized
>>> [ 8.084] (II) modeset(0): Output None-1 using monitor section LCD-0
>>> [ 8.084] (II) modeset(0): Output Composite-1 has no monitor section
>>> [ 8.085] (II) modeset(0): EDID for output None-1
>>> [ 8.085] (II) modeset(0): Printing probed modes for output None-1
>>> [ 8.085] (II) modeset(0): Modeline "1024x600"x60.0 45.00 1024 1040
>>> 1050 1200 600 602 604 625 (37.5 kHz eP)
>>> [ 8.085] (II) modeset(0): EDID for output Composite-1
>>> [ 8.085] (II) modeset(0): Printing probed modes for output Composite-1
>>> [ 8.085] (II) modeset(0): Modeline "PAL"x25.0 13.50 720 723 725 864
>>> 576 604 606 625 interlace (15.6 kHz e)
>>> [ 8.085] (II) modeset(0): Modeline "NTSC"x30.0 13.50 720 738 740 858
>>> 480 506 508 525 interlace (15.7 kHz e)
>>> [ 8.085] (II) modeset(0): Output None-1 connected
>>> [ 8.086] (II) modeset(0): Output Composite-1 connected
>>> [ 8.086] (II) modeset(0): Using sloppy heuristic for initial modes
>>> [ 8.086] (II) modeset(0): Output None-1 using initial mode 1024x600 +0+0
>>> [ 8.086] (II) modeset(0): Output Composite-1 using initial mode PAL +0+0
>>> [ 8.086] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0)
>>> [ 8.086] (==) modeset(0): DPI set to (96, 96)
>>> [ 8.086] (II) Loading sub module "fb"
>>> [ 8.086] (II) LoadModule: "fb"
>>> [ 8.086] (II) Loading /usr/lib/xorg/modules/libfb.so
>>> [ 8.108] (II) Module fb: vendor="X.Org Foundation"
>>> [ 8.109] compiled for 1.20.9, module version = 1.0.0
>>> [ 8.109] ABI class: X.Org ANSI C Emulation, version 0.4
>>> [ 8.109] (II) UnloadModule: "fbdev"
>>> [ 8.109] (II) Unloading fbdev
>>> [ 8.109] (II) UnloadSubModule: "fbdevhw"
>>> [ 8.109] (II) Unloading fbdevhw
>>> [ 8.606] (==) modeset(0): Backing store disabled
>>> [ 8.606] (==) modeset(0): Silken mouse enabled
>>> [ 8.632] (II) modeset(0): Initializing kms color map for depth 24, 8
>>> bpc.
>>> [ 8.633] (==) modeset(0): DPMS enabled
>>> [ 8.633] (WW) modeset(0): Option "PrimaryGPU" is not used
>>> [ 8.633] (II) modeset(0): [DRI2] Setup complete
>>> [ 8.633] (II) modeset(0): [DRI2] DRI driver: sun4i-drm
>>> [ 8.633] (II) modeset(0): [DRI2] VDPAU driver: sun4i-drm
>>> [ 8.633] (II) Initializing extension Generic Event Extension
>>> [ 8.633] (II) Initializing extension SHAPE
>>> [ 8.634] (II) Initializing extension MIT-SHM
>>> [ 8.634] (II) Initializing extension XInputExtension
>>> [ 8.640] (II) Initializing extension XTEST
>>> [ 8.640] (II) Initializing extension BIG-REQUESTS
>>> [ 8.640] (II) Initializing extension SYNC
>>> [ 8.640] (II) Initializing extension XKEYBOARD
>>> [ 8.641] (II) Initializing extension XC-MISC
>>> [ 8.641] (II) Initializing extension XFIXES
>>> [ 8.641] (II) Initializing extension RENDER
>>> [ 8.641] (II) Initializing extension RANDR
>>> [ 8.641] (II) Initializing extension DAMAGE
>>> [ 8.641] (II) Initializing extension MIT-SCREEN-SAVER
>>> [ 8.641] (II) Initializing extension DOUBLE-BUFFER
>>> [ 8.641] (II) Initializing extension RECORD
>>> [ 8.641] (II) Initializing extension DPMS
>>> [ 8.641] (II) Initializing extension Present
>>> [ 8.641] (II) Initializing extension DRI3
>>> [ 8.641] (II) Initializing extension X-Resource
>>> [ 8.641] (II) Initializing extension XVideo
>>> [ 8.641] (II) Initializing extension XVideo-MotionCompensation
>>> [ 8.641] (II) Initializing extension GLX
>>> [ 8.784] (II) AIGLX: Loaded and initialized sun4i-drm
>>> [ 8.784] (II) GLX: Initialized DRI2 GL provider for screen 0
>>> [ 8.784] (II) Initializing extension XFree86-VidModeExtension
>>> [ 8.784] (II) Initializing extension XFree86-DGA
>>> [ 8.784] (II) Initializing extension XFree86-DRI
>>> [ 8.789] (II) Initializing extension DRI2
>>> [ 8.804] (II) modeset(0): Damage tracking initialized
>>> [ 8.804] (II) modeset(0): Setting screen physical size to 270 x 158
>>> ==============================================================================
>>>
>>> El viernes, 18 de diciembre de 2020 a las 16:31:09 UTC+1, Sergio Sota
>>> escribió:
>>>>
>>>> Hi Clement, Chen-Yu Tsai and Jernej Škrabec,
>>>>
>>>> we have updated the device tree frontend as suggested (taking into account
>>>> that
>>>> sun5i-a13-display-frontend was not added to the driver and that the a10
>>>> frontend
>>>> should be compatible) to sun4i-a10-display-frontend. Now the kernel logs
>>>> are:
>>>>
>>>> <<<===========================================================
>>>> ...
>>>> [ 2.171465] Key type dns_resolver registered
>>>> [ 2.175845] Registering SWP/SWPB emulation handler
>>>> [ 2.191990] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found,
>>>> using dummy regulator
>>>> [ 2.200843] sun4i-drm display-engine: bound 1e00000.display-frontend
>>>> (ops 0xc084c328)
>>>> [ 2.209107] sun4i-drm display-engine: bound 1e60000.display-backend
>>>> (ops 0xc084bb68)
>>>> [ 2.217464] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops
>>>> 0xc084a6c8)
>>>> [ 2.225311] sun4i-drm display-engine: bound 1c0a000.tv-encoder (ops
>>>> 0xc084b428)
>>>> [ 2.233146] checking generic (4fda8000 258000) vs hw (0 ffffffff)
>>>> [ 2.233154] fb0: switching to sun4i-drm-fb from simple
>>>> [ 2.238746] Console: switching to colour dummy device 80x30
>>>> [ 2.245271] [drm] Initialized sun4i-drm 1.0.0 20150629 for
>>>> display-engine on minor 1
>>>> [ 2.253402] [drm] kms: can't enable cloning when we probably wanted to.
>>>> [ 2.291290] mmc0: host does not support reading read-only switch,
>>>> assuming write-enable
>>>> ...
>>>> ===========================================================>>>
>>>>
>>>> everything is ok now, we also check that there is also no mali gpu
>>>> declaration
>>>> on a13 device tree so we added the very same from a10 (in documentation it
>>>> is
>>>> said that they have the same gpu mali-400) and also enabled the
>>>> display-engine
>>>>
>>>> <<<===========================================================
>>>> ...
>>>> /soc {
>>>> mali: gpu@1c40000 {
>>>> compatible = "allwinner,sun4i-a10-mali", "arm,mali-400";
>>>> reg = <0x01c40000 0x10000>;
>>>> interrupts = <69>, <70>, <71>, <72>, <73>;
>>>> interrupt-names = "gp", "gpmmu", "pp0", "ppmmu0", "pmu";
>>>> clocks = <&ccu CLK_AHB_GPU>, <&ccu CLK_GPU>;
>>>> clock-names = "bus", "core";
>>>> resets = <&ccu RST_GPU>;
>>>> assigned-clocks = <&ccu CLK_GPU>;
>>>> assigned-clock-rates = <384000000>;
>>>> };
>>>> }
>>>> ...
>>>> /{
>>>> de: display-engine {
>>>> compatible = "allwinner,sun5i-a13-display-engine";
>>>> allwinner,pipelines = <&fe0>;
>>>> };
>>>> };
>>>> ...
>>>> &de {
>>>> status = "okay";
>>>> };
>>>>
>>>> &mali {
>>>> status = "okay";
>>>> };
>>>> ...
>>>> ===========================================================>>>
>>>>
>>>> Now the mali gpu and lima kernel driver are correctly loaded:
>>>>
>>>> <<<===========================================================
>>>> ...
>>>> [ 0.881876] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found,
>>>> using dummy regulator
>>>> [ 0.895920] lima 1c40000.gpu: gp - mali400 version major 1 minor 1
>>>> [ 0.902267] lima 1c40000.gpu: pp0 - mali400 version major 1 minor 1
>>>> [ 0.908568] lima 1c40000.gpu: l2 cache 32K, 4-way, 64byte cache line,
>>>> 64bit external bus
>>>> [ 0.917322] lima 1c40000.gpu: bus rate = 300000000
>>>> [ 0.922177] lima 1c40000.gpu: mod rate = 384000000
>>>> [ 0.927515] [drm] Initialized lima 1.1.0 20191231 for 1c40000.gpu on
>>>> minor 0
>>>> [ 0.935599] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pc not found,
>>>> using dummy regulator
>>>> ...
>>>> ===========================================================>>>
>>>>
>>>> we have completed a drm driver test with the "modetest" tool and this
>>>> command:
>>>> "modetest -M sun4i-drm -s 49@47:1024x600-60" (only mode supported on our
>>>> panel)
>>>> and the result is correct, we can see the color bars on screen, the drm
>>>> works!
>>>> we also have completed a kms driver test with "kmscube" tool and we can
>>>> see a
>>>> 3dcube on screen with 60fps at only 10% cpu, the kms works! With a video
>>>> the
>>>> test report 20fps at 42% cpu ("kmscube -V test.mpg")
>>>>
>>>> I would like to thank you all for your help regarding this issue, it seems
>>>> that
>>>> now we finally have drm support on allwinner a13 soc :-)
>>>>
>>>> But v4l2_request_test didn't work (as reported, it has out of date headers
>>>> and
>>>> is now deprecated) So we still can not play video files on the system. We
>>>> have
>>>> also tried with mpv, vlc (as sunxi reported) and gstreamer... with no luck
>>>> :-(
>>>>
>>>> May be is another topic, or maybe it is related, but that's what we know:
>>>> We have installed mesa3d library following the linux sunxi instructions,
>>>> and
>>>> now we have libEGL.so.1.0.0 / libGLESv1_CM.so.1.1.0 / libGLESv2.so.2.0.0
>>>> on our
>>>> system, but when we launch a test such as "glxgears" app we only reach
>>>> 15fps.
>>>> What's more, when a QT app such as vlc is launched we get the following
>>>> message:
>>>> "libEGL warning: DRI2: failed to authenticate"
>>>> (the libs in /usr/lib/libEGL-libGLESv1_CM-libGLESv2 are the only ones on
>>>> system)
>>>> Seems as if there is no hardware gpu use / access, but we created
>>>> correctly the
>>>> mesa3d libs (check the following build configure info) and QT openGLES
>>>> support.
>>>>
>>>> <<<===========================================================
>>>> ...
>>>> Message: Configuration summary:
>>>>
>>>> prefix: /usr
>>>> libdir: lib
>>>> includedir: include
>>>>
>>>> OpenGL: yes (ES1: yes ES2: yes)
>>>> OSMesa: no
>>>>
>>>> DRI platform: drm
>>>> DRI drivers: no
>>>> DRI driver dir: /usr/lib/dri
>>>>
>>>> GLX: DRI-based
>>>>
>>>> EGL: yes
>>>> EGL drivers: builtin:egl_dri2
>>>> GBM: yes
>>>> EGL/Vulkan/VL platforms: x11 surfaceless drm
>>>>
>>>> Vulkan drivers: no
>>>>
>>>> llvm: no
>>>>
>>>> Gallium drivers: kmsro lima panfrost swrast
>>>> Gallium st: mesa
>>>> HUD lmsensors: no
>>>>
>>>> Shared-glapi: yes
>>>>
>>>> Build targets in project: 121
>>>>
>>>> Option buildtype is: release [default: debugoptimized]
>>>> ...
>>>> ===========================================================>>>
>>>>
>>>>
>>>> We will keep on searching for a solution.
>>>> Any help or clue would be greatly
>>>> appreciated. Even at the risk of being tiring, thank you very much for
>>>> your help
>>>>
>>>> Best Regards,
>>>> Sergio Sota
>>>>
>>>> El miércoles, 16 de diciembre de 2020 a las 18:39:56 UTC+1,
>>>> [email protected] escribió:
>>>>>
>>>>> Dne sreda, 16. december 2020 ob 18:36:25 CET je Chen-Yu Tsai napisal(a):
>>>>> > Hi,
>>>>> >
>>>>> > On Thu, Dec 17, 2020 at 12:26 AM Sergio Sota <[email protected]> wrote:
>>>>> > > Hi Chen-Yu Tsai,
>>>>> > >
>>>>> > > Thank you so much for your help. You are right, we should have checked
>>>>> > > first the panel-dpi kernel support. Our apologies. This time we have
>>>>> > > build a complete new system with the last kernel (from our Buildroot
>>>>> > > version this is kernel 5.9.11) and with it we have the following
>>>>> > > kernel
>>>>> > > logs (the complete log at the end):
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== ...
>>>>> > > [ 2.160358] sun4i-backend 1e60000.display-backend: Couldn't find
>>>>> > > matching frontend, frontend features disabled [ 2.170868] sun4i-drm
>>>>> > > display-engine: bound 1e60000.display-backend (ops 0xc084bb28) [
>>>>> > > 2.179113] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops
>>>>> > > 0xc084a688) [ 2.186967] sun4i-drm display-engine: bound
>>>>> > > 1c0a000.tv-encoder (ops 0xc084b3e8) [ 2.194748] checking generic
>>>>> > > (4fda8000 258000) vs hw (0 ffffffff) [ 2.194757] fb0: switching to
>>>>> > > sun4i-drm-fb from simple
>>>>> > > [ 2.200423] Console: switching to colour dummy device 80x30
>>>>> > > [ 2.206899] [drm] Initialized sun4i-drm 1.0.0 20150629 for
>>>>> > > display-engine on minor 0 [ 2.215041] [drm] kms: can't enable cloning
>>>>> > > when we probably wanted to. ...
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > so, the sun4i-drm driver emits messages as before, and this time it
>>>>> > > is not
>>>>> > > complaining about the panel (but it still can not find the frontend)
>>>>> > > Also
>>>>> > > this time there is a /dri/card0 device on the system :-) but the
>>>>> > > panel is
>>>>> > > dark, not showing anything on screen... maybe there is some option we
>>>>> > > are
>>>>> > > missing, so we decided to make the following changes:
>>>>> > >
>>>>> > > 1) edit "drivers/gpu/drm/panel/panel-simple.c" & add support to our
>>>>> > > custom
>>>>> > > panel
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== ...
>>>>> > > static const struct drm_display_mode fanamoel_tftlcd10_mode = {
>>>>> > >
>>>>> > > .clock = 45000,
>>>>> > > .hdisplay = 1024,
>>>>> > > .hsync_start = 1024 + 16,
>>>>> > > .hsync_end = 1024 + 16 + 10,
>>>>> > > .htotal = 1024 + 16 + 10 + 150,
>>>>> > > .vdisplay = 600,
>>>>> > > .vsync_start = 600 + 2,
>>>>> > > .vsync_end = 600 + 2 + 2,
>>>>> > > .vtotal = 600 + 2 + 2 + 21,
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > static const struct panel_desc fanamoel_tftlcd10 = {
>>>>> > >
>>>>> > > .modes = &fanamoel_tftlcd10_mode,
>>>>> > > .num_modes = 1,
>>>>> > > .size = {
>>>>> > >
>>>>> > > .width = 224,
>>>>> > > .height = 126,
>>>>> > >
>>>>> > > },
>>>>> > > .bus_format = MEDIA_BUS_FMT_RGB666_1X18,
>>>>> > > .bus_flags = DRM_BUS_FLAG_DE_HIGH,
>>>>> > >
>>>>> > > };
>>>>> > > ...
>>>>> > >
>>>>> > > }, {
>>>>> > >
>>>>> > > .compatible = "fanamoel,tftlcd10",
>>>>> > > .data = &fanamoel_tftlcd10,
>>>>> > >
>>>>> > > }, {
>>>>> > >
>>>>> > > ...
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > 2) define panel compatible with "fanamoel,tftlcd10" (our custom
>>>>> > > "simple-panel") Notice that we removed panel-timings (they are defined
>>>>> > > now on the driver side)
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== ...
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * panel backlight
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > backlight: backlight {
>>>>> > >
>>>>> > > compatible = "pwm-backlight";
>>>>> > > pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
>>>>> > > brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
>>>>> > > default-brightness-level = <8>;
>>>>> > > enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * panel tft lcd 10.1" (rgb interface) (default)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > panel {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > compatible = "fanamoel,tftlcd10";
>>>>> > > power-supply = <®_vcc3v3>;
>>>>> > > backlight = <&backlight>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > port {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > panel_input: endpoint {
>>>>> > >
>>>>> > > remote-endpoint = <&tcon0_out_lcd>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > ...
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > Now with these changes the kernel logs are the same, there is no
>>>>> > > complains
>>>>> > > about the panel but no frontend. The /dri/card0 is still present and
>>>>> > > this
>>>>> > > time the
>>>>> > I'm not sure what went wrong. Maybe something was parsed incorrectly?
>>>>> > Anyway, if the current solution works for you, then stick to it I guess.
>>>>> >
>>>>> > > panel is working, we can see our apps on screen. With
>>>>> > > /sys/class/backlight
>>>>> > > we can turn on/off the screen and change the brightness... so far so
>>>>> > > good. Here you can see the vainfo output:
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== vainfo: VA-API version: 1.9 (libva 2.9.0)
>>>>> > > vainfo: Driver version: v4l2-request
>>>>> > > vainfo: Supported profile and entrypoints
>>>>> > >
>>>>> > > VAProfileMPEG2Simple : VAEntrypointVLD
>>>>> > > VAProfileMPEG2Main : VAEntrypointVLD
>>>>> > > VAProfileH264Main : VAEntrypointVLD
>>>>> > > VAProfileH264High : VAEntrypointVLD
>>>>> > > VAProfileH264ConstrainedBaseline: VAEntrypointVLD
>>>>> > > VAProfileH264MultiviewHigh : VAEntrypointVLD
>>>>> > > VAProfileH264StereoHigh : VAEntrypointVLD
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > But again, we still can not play video, we have /dev/dri/card0,
>>>>> > > /dev/video0 and /dev/media0... libva and libva_v4l2_request, but when
>>>>> > > we
>>>>> > > use the video test app v4l2_request_test this is the output:
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ======>
>>>>> > > Config:
>>>>> > > Video path: /dev/video0
>>>>> > > Media path: /dev/media0
>>>>> > > DRM path: /dev/dri/card0
>>>>> > > DRM driver: sun4i-drm
>>>>> > > Slices path: data/bbb-mpeg2
>>>>> > > Slices filename format: slice-%d.dump
>>>>> > > FPS: 0
>>>>> > >
>>>>> > > Preset:
>>>>> > > Name: bbb-mpeg2
>>>>> > > Description: big_buck_bunny_480p_MPEG2_MP2_25fps_1800K.MPG
>>>>> > > License: Creative Commons Attribution 3.0
>>>>> > > Attribution: Blender Foundation | www.blender.org
>>>>> > > Width: 854
>>>>> > > Height: 480
>>>>> > > Frames count: 25
>>>>> > > Format: MPEG2
>>>>> > >
>>>>> > > Media device driver: cedrus
>>>>> > > Destination format: NV12 YUV
>>>>> > > Unable to find any plane for CRTC 43
>>>>> > > Unable to select DRM plane for CRTC 43
>>>>> > > Unable to start display engine
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > We think we are getting close to solve this problem. Maybe it is
>>>>> > > something
>>>>> > > related with the frontend not being bound? We checked why there is no
>>>>> > > frontend enabled, and in drivers/gpu/drm/sun4i/sun4i_backend.c when
>>>>> > > the
>>>>> > > backend is being set there is a part that loads a list of frontends
>>>>> > > for
>>>>> > > that backend... but this list is empty... so no frontend is found.
>>>>> > > This
>>>>> > > list is filled from the function sun4i_frontend_bind in
>>>>> > > drivers/gpu/drm/sun4i/sun4i_frontend.c but we believe that binding
>>>>> > > process is never called.
>>>>> >
>>>>> > The simple reason is: sun5i-a13-display-frontend was not added to the
>>>>> > driver. Simply put, no one did the work to add support for the A10s/A13
>>>>> > display frontend. You could try changing the compatible to
>>>>> > sun4i-a10-display-frontend, or add an entry for
>>>>> > sun5i-a13-display-frontend
>>>>> > to the driver, using the same settings as the A10 or the A20 for
>>>>> > testing.
>>>>> >
>>>>> > And yes, on the A13, to display the image decoded from cedrus directly
>>>>> > requires the frontend to be present to convert the tiled image format.
>>>>> >
>>>>> > Also, IIRC libva-v4l2-request is deprecated.
>>>>>
>>>>> At least headers in that repo are out of date, so it won't work for H264.
>>>>> MPEG2 might still work.
>>>>>
>>>>> Best regards,
>>>>> Jernej
>>>>>
>>>>> >
>>>>> > ChenYu
>>>>> >
>>>>> > > We will keep on searching for a solution. Any help or clue would be
>>>>> > > greatly
>>>>> > > appreciated. As always thank you so much for your help :-)
>>>>> > >
>>>>> > > Best Regards,
>>>>> > > Sergio Sota
>>>>> > >
>>>>> > > Here are again the complete device tree and kernel logs (as you never
>>>>> > > know)
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== /*
>>>>> > >
>>>>> > > * Copyright 2012 Maxime Ripard <[email protected]>
>>>>> > > * Copyright 2013 Hans de Goede <[email protected]>
>>>>> > > *
>>>>> > > * This file is dual-licensed: you can use it either under the terms
>>>>> > > * of the GPL or the X11 license, at your option. Note that this dual
>>>>> > > * licensing only applies to this file, and not this project as a
>>>>> > > * whole.
>>>>> > > *
>>>>> > > * a) This file is free software; you can redistribute it and/or
>>>>> > > * modify it under the terms of the GNU General Public License as
>>>>> > > * published by the Free Software Foundation; either version 2 of the
>>>>> > > * License, or (at your option) any later version.
>>>>> > > *
>>>>> > > * This file is distributed in the hope that it will be useful,
>>>>> > > * but WITHOUT ANY WARRANTY; without even the implied warranty of
>>>>> > > * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>>>>> > > * GNU General Public License for more details.
>>>>> > > *
>>>>> > > * Or, alternatively,
>>>>> > > *
>>>>> > > * b) Permission is hereby granted, free of charge, to any person
>>>>> > > * obtaining a copy of this software and associated documentation
>>>>> > > * files (the "Software"), to deal in the Software without
>>>>> > > * restriction, including without limitation the rights to use,
>>>>> > > * copy, modify, merge, publish, distribute, sublicense, and/or
>>>>> > > * sell copies of the Software, and to permit persons to whom the
>>>>> > > * Software is furnished to do so, subject to the following
>>>>> > > * conditions:
>>>>> > > *
>>>>> > > * The above copyright notice and this permission notice shall be
>>>>> > > * included in all copies or substantial portions of the Software.
>>>>> > > *
>>>>> > > * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>>>>> > > * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>>>>> > > * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>>>>> > > * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>>>>> > > * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>>>>> > > * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>>>>> > > * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>>>>> > > * OTHER DEALINGS IN THE SOFTWARE.
>>>>> > > */
>>>>> > >
>>>>> > > /dts-v1/;
>>>>> > > #include "sun5i-a13.dtsi"
>>>>> > > #include "sunxi-common-regulators.dtsi"
>>>>> > > #include <dt-bindings/gpio/gpio.h>
>>>>> > > #include <dt-bindings/pwm/pwm.h>
>>>>> > > #include <dt-bindings/interrupt-controller/irq.h>
>>>>> > >
>>>>> > > / {
>>>>> > >
>>>>> > > model = "Olimex A13-Olinuxino Micro";
>>>>> > > compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13";
>>>>> > >
>>>>> > > aliases {
>>>>> > >
>>>>> > > serial0 = &uart1;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > chosen {
>>>>> > >
>>>>> > > stdout-path = "serial0:115200n8";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > leds {
>>>>> > >
>>>>> > > compatible = "gpio-leds";
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&led_pins_olinuxinom>;
>>>>> > >
>>>>> > > power {
>>>>> > >
>>>>> > > label = "a13-olinuxino-micro:green:power";
>>>>> > > gpios = <&pio 6 9 GPIO_ACTIVE_HIGH>; /* PG9 */
>>>>> > > default-state = "on";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * clock spi0 mcp2515 (spi can controller)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > clocks {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <1>;
>>>>> > > can0_osc_fixed: can0_osc_fixed {
>>>>> > >
>>>>> > > compatible = "fixed-clock";
>>>>> > > #clock-cells = <0>;
>>>>> > > clock-frequency = <10000000>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * panel backlight
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > backlight: backlight {
>>>>> > >
>>>>> > > compatible = "pwm-backlight";
>>>>> > > pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
>>>>> > > brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
>>>>> > > default-brightness-level = <8>;
>>>>> > > enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * panel tft lcd 10.1" (rgb interface) (default)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > panel {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > compatible = "fanamoel,tftlcd10";
>>>>> > > power-supply = <®_vcc3v3>;
>>>>> > > backlight = <&backlight>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > port {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > panel_input: endpoint {
>>>>> > >
>>>>> > > remote-endpoint = <&tcon0_out_lcd>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * panel tft lcd 7.0" (rgb interface) (test)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > /*
>>>>> > >
>>>>> > > panel {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > compatible = "fanamoel,tftlcd7";
>>>>> > > power-supply = <®_vcc3v3>;
>>>>> > > backlight = <&backlight>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > port {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > panel_input: endpoint {
>>>>> > >
>>>>> > > remote-endpoint = <&tcon0_out_lcd>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > */
>>>>> > > };
>>>>> > >
>>>>> > > &ehci0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &i2c0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &i2c1 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &i2c2 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &mmc0 {
>>>>> > >
>>>>> > > vmmc-supply = <®_vcc3v3>;
>>>>> > > bus-width = <4>;
>>>>> > > cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &ohci0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &otg_sram {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > ®_usb0_vbus {
>>>>> > >
>>>>> > > gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > ®_usb1_vbus {
>>>>> > >
>>>>> > > gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &uart1 {
>>>>> > >
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&uart1_pg_pins>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &usb_otg {
>>>>> > >
>>>>> > > dr_mode = "otg";
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &usbphy {
>>>>> > >
>>>>> > > usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /*
>>>>> > > PG2 */
>>>>> > > usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>;
>>>>> > > /* PG1 */ usb0_vbus-supply = <®_usb0_vbus>;
>>>>> > > usb1_vbus-supply = <®_usb1_vbus>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > &pio {
>>>>> > >
>>>>> > > led_pins_olinuxinom: led-pin {
>>>>> > >
>>>>> > > pins = "PG9";
>>>>> > > function = "gpio_out";
>>>>> > > drive-strength = <20>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi0 pins
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > spi0_pins: spi0_pins {
>>>>> > >
>>>>> > > pins = "PC0", "PC1", "PC2";
>>>>> > > function = "spi0";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > spi0_cs0_pin: spi0_cs_pin {
>>>>> > >
>>>>> > > pins = "PC3";
>>>>> > > function = "spi0";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi2 ethernet controller (enc28j60) pins
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > eth0_irq_pin: eth0_irq_pin {
>>>>> > >
>>>>> > > pins = "PB3";
>>>>> > > function = "irq";
>>>>> > > bias-pull-up;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi2 pins
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > spi2_pins: spi2_pins {
>>>>> > >
>>>>> > > pins = "PE1", "PE2", "PE3";
>>>>> > > function = "spi2";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > spi2_cs0_pin: spi2_cs0_pin {
>>>>> > >
>>>>> > > pins = "PE0";
>>>>> > > function = "spi2";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi0 can controller (mcp2515) pins
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > can0_irq_pin: can0_irq_pin {
>>>>> > >
>>>>> > > pins = "PB4";
>>>>> > > function = "irq";
>>>>> > > bias-pull-up;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi0 (mcp2515 spi can controller)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &spi0 {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > mcp2515@0 {
>>>>> > >
>>>>> > > compatible = "microchip,mcp2515";
>>>>> > > reg = <0>;
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&can0_irq_pin>;
>>>>> > > interrupt-parent = <&pio>;
>>>>> > > interrupts = <1 4 2>; /* PB4 IRQ_TYPE_EDGE_FALLING */
>>>>> > > clocks = <&can0_osc_fixed>;
>>>>> > > spi-max-frequency = <10000000>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * spi2 (enc28j60 spi ethernet controller)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &spi2 {
>>>>> > >
>>>>> > > #address-cells = <1>;
>>>>> > > #size-cells = <0>;
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&spi2_pins>, <&spi2_cs0_pin>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > enc28j60@0 {
>>>>> > >
>>>>> > > compatible = "microchip,enc28j60";
>>>>> > > /* compatible = "microchip,encx24j600"; */
>>>>> > > reg = <0>;
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <ð0_irq_pin>;
>>>>> > > interrupt-parent = <&pio>;
>>>>> > > interrupts = <1 3 2>; /* PB3 IRQ_TYPE_EDGE_FALLING */
>>>>> > > spi-max-frequency = <12000000>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * codec audio controller (headphones)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &codec {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * crypto engine (sha, md5, rng)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &crypto {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * [fe0] -> [be0] -> [tcon0] |-> [panel] (tft lcd 10.1") <- [pwm]
>>>>> > > * |-> [tve0] (vga/cvbs port)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * front end (display engine)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &fe0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * back end (display engine)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &be0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * pipeline (display engine)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &tcon0 {
>>>>> > >
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&lcd_rgb666_pins>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * timing controller (panel tft lcd 10.1")
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &tcon0_out {
>>>>> > >
>>>>> > > tcon0_out_lcd: endpoint@0 {
>>>>> > >
>>>>> > > reg = <0>;
>>>>> > > remote-endpoint = <&panel_input>;
>>>>> > > allwinner,tcon-channel = <0>;
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * tv encoder controller (vga/cvbs video output)
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &tve0 {
>>>>> > >
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > >
>>>>> > > /*************************************************************************
>>>>> > > ****>
>>>>> > > * pwm controller
>>>>> > > *************************************************************************
>>>>> > > ****/>
>>>>> > > &pwm {
>>>>> > >
>>>>> > > pinctrl-names = "default";
>>>>> > > pinctrl-0 = <&pwm0_pin>;
>>>>> > > status = "okay";
>>>>> > >
>>>>> > > };
>>>>> > > ==========================================================================
>>>>> > > ======
>>>>> > >
>>>>> > > The CAN controller is unplugged and the Ethernet controller is
>>>>> > > plugged but
>>>>> > > with no conection (just ignore those parts as well as the system
>>>>> > > crypto
>>>>> > > low entropy)
>>>>> > >
>>>>> > > ==========================================================================
>>>>> > > ====== [ 0.000000] Booting Linux on physical CPU 0x0
>>>>> > > [ 0.000000] Linux version 5.9.11 (sergio@fanamoel)
>>>>> > > (arm-buildroot-linux-gnueabihf-gcc.br_real (Buildroot -gbadaf6c)
>>>>> > > 9.3.0,
>>>>> > > GNU ld (GNU Binutils) 2.34) #3 SMP Wed Dec 16 14:29:27 CET 2020 [
>>>>> > > 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7),
>>>>> > > cr=10c5387d
>>>>> > > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
>>>>> > > instruction cache [ 0.000000] OF: fdt: Machine model: Olimex
>>>>> > > A13-Olinuxino Micro
>>>>> > > [ 0.000000] Memory policy: Data cache writeback
>>>>> > > [ 0.000000] Reserved memory: created CMA memory pool at 0x43c00000,
>>>>> > > size 96 MiB [ 0.000000] OF: reserved mem: initialized node
>>>>> > > default-pool, compatible id shared-dma-pool [ 0.000000] Zone ranges:
>>>>> > > [ 0.000000] Normal [mem 0x0000000040000000-0x000000004fda7fff]
>>>>> > > [ 0.000000] HighMem empty
>>>>> > > [ 0.000000] Movable zone start for each node
>>>>> > > [ 0.000000] Early memory node ranges
>>>>> > > [ 0.000000] node 0: [mem 0x0000000040000000-0x000000004fda7fff]
>>>>> > > [ 0.000000] Initmem setup node 0 [mem
>>>>> > > 0x0000000040000000-0x000000004fda7fff] [ 0.000000] On node 0
>>>>> > > totalpages: 64936
>>>>> > > [ 0.000000] Normal zone: 508 pages used for memmap
>>>>> > > [ 0.000000] Normal zone: 0 pages reserved
>>>>> > > [ 0.000000] Normal zone: 64936 pages, LIFO batch:15
>>>>> > > [ 0.000000] CPU: All CPU(s) started in SVC mode.
>>>>> > > [ 0.000000] percpu: Embedded 15 pages/cpu s30924 r8192 d22324 u61440
>>>>> > > [ 0.000000] pcpu-alloc: s30924 r8192 d22324 u61440 alloc=15*4096
>>>>> > > [ 0.000000] pcpu-alloc: [0] 0
>>>>> > > [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages:
>>>>> > > 64428
>>>>> > > [ 0.000000] Kernel command line: console=ttyS0,115200 earlyprintk
>>>>> > > root=/dev/mmcblk0p2 rootwait [ 0.000000] Dentry cache hash table
>>>>> > > entries: 32768 (order: 5, 131072 bytes, linear) [ 0.000000]
>>>>> > > Inode-cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
>>>>> > > [
>>>>> > > 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [
>>>>> > > 0.000000] Memory: 146824K/259744K available (7168K kernel code, 493K
>>>>> > > rwdata, 1984K rodata, 1024K init, 249K bss, 14616K reserved, 98304K
>>>>> > > cma-reserved, 0K highmem) [ 0.000000] SLUB: HWalign=64, Order=0-3,
>>>>> > > MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] rcu: Hierarchical RCU
>>>>> > > implementation.
>>>>> > > [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to
>>>>> > > nr_cpu_ids=1. [ 0.000000] rcu: RCU calculated value of
>>>>> > > scheduler-enlistment delay is 10 jiffies. [ 0.000000] rcu: Adjusting
>>>>> > > geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.000000] NR_IRQS: 16,
>>>>> > > nr_irqs: 16, preallocated irqs: 16
>>>>> > > [ 0.000000] random: get_random_bytes called from
>>>>> > > start_kernel+0x324/0x4cc with crng_init=0 [ 0.000020] sched_clock: 32
>>>>> > > bits at 24MHz, resolution 41ns, wraps every 89478484971ns [ 0.000049]
>>>>> > > clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff,
>>>>> > > max_idle_ns:
>>>>> > > 79635851949 ns [ 0.000212] clocksource: timer: mask: 0xffffffff
>>>>> > > max_cycles: 0xffffffff, max_idle_ns: 6370868154 ns [ 0.000477]
>>>>> > > Console: colour dummy device 80x30
>>>>> > > [ 0.000531] Calibrating delay loop... 1001.88 BogoMIPS (lpj=5009408)
>>>>> > > [ 0.090101] pid_max: default: 32768 minimum: 301
>>>>> > > [ 0.090258] Mount-cache hash table entries: 1024 (order: 0, 4096
>>>>> > > bytes,
>>>>> > > linear) [ 0.090273] Mountpoint-cache hash table entries: 1024 (order:
>>>>> > > 0, 4096 bytes, linear) [ 0.090989] CPU: Testing write buffer
>>>>> > > coherency: ok
>>>>> > > [ 0.091045] CPU0: Spectre v2: firmware did not set auxiliary control
>>>>> > > register IBE bit, system vulnerable [ 0.091323] CPU0: thread -1, cpu
>>>>> > > 0, socket -1, mpidr 0
>>>>> > > [ 0.091934] Setting up static identity map for 0x40100000 - 0x40100060
>>>>> > > [ 0.092102] rcu: Hierarchical SRCU implementation.
>>>>> > > [ 0.092527] smp: Bringing up secondary CPUs ...
>>>>> > > [ 0.092541] smp: Brought up 1 node, 1 CPU
>>>>> > > [ 0.092550] SMP: Total of 1 processors activated (1001.88 BogoMIPS).
>>>>> > > [ 0.092557] CPU: All CPU(s) started in SVC mode.
>>>>> > > [ 0.092994] devtmpfs: initialized
>>>>> > > [ 0.096978] VFP support v0.3: implementor 41 architecture 3 part 30
>>>>> > > variant c rev 3 [ 0.097233] clocksource: jiffies: mask: 0xffffffff
>>>>> > > max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.097257]
>>>>> > > futex hash table entries: 256 (order: 2, 16384 bytes, linear) [
>>>>> > > 0.103257] pinctrl core: initialized pinctrl subsystem
>>>>> > > [ 0.104596] NET: Registered protocol family 16
>>>>> > > [ 0.106254] DMA: preallocated 256 KiB pool for atomic coherent
>>>>> > > allocations [ 0.107079] thermal_sys: Registered thermal governor
>>>>> > > 'step_wise' [ 0.107468] hw-breakpoint: debug architecture 0x4
>>>>> > > unsupported.
>>>>> > > [ 0.127598] SCSI subsystem initialized
>>>>> > > [ 0.127896] libata version 3.00 loaded.
>>>>> > > [ 0.128149] usbcore: registered new interface driver usbfs
>>>>> > > [ 0.128205] usbcore: registered new interface driver hub
>>>>> > > [ 0.128265] usbcore: registered new device driver usb
>>>>> > > [ 0.128464] mc: Linux media interface: v0.10
>>>>> > > [ 0.128500] videodev: Linux video capture interface: v2.00
>>>>> > > [ 0.128552] pps_core: LinuxPPS API ver. 1 registered
>>>>> > > [ 0.128559] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
>>>>> > > Rodolfo
>>>>> > > Giometti <[email protected]> [ 0.128586] PTP clock support registered
>>>>> > > [ 0.129076] Advanced Linux Sound Architecture Driver Initialized.
>>>>> > > [ 0.130049] clocksource: Switched to clocksource timer
>>>>> > > [ 0.131075] simple-framebuffer 4fda8000.framebuffer: framebuffer at
>>>>> > > 0x4fda8000, 0x258000 bytes, mapped to 0x(ptrval) [ 0.131096]
>>>>> > > simple-framebuffer 4fda8000.framebuffer: format=x8r8g8b8,
>>>>> > > mode=1024x600x32, linelength=4096 [ 0.140401] Console: switching to
>>>>> > > colour frame buffer device 128x37 [ 0.148997] simple-framebuffer
>>>>> > > 4fda8000.framebuffer: fb0: simplefb registered! [ 0.156373] NET:
>>>>> > > Registered protocol family 2
>>>>> > > [ 0.156929] tcp_listen_portaddr_hash hash table entries: 512 (order:
>>>>> > > 0,
>>>>> > > 6144 bytes, linear) [ 0.156959] TCP established hash table entries:
>>>>> > > 2048 (order: 1, 8192 bytes, linear) [ 0.156988] TCP bind hash table
>>>>> > > entries: 2048 (order: 2, 16384 bytes, linear) [ 0.157021] TCP: Hash
>>>>> > > tables configured (established 2048 bind 2048) [ 0.157141] UDP hash
>>>>> > > table entries: 256 (order: 1, 8192 bytes, linear) [ 0.157165] UDP-Lite
>>>>> > > hash table entries: 256 (order: 1, 8192 bytes, linear) [ 0.157317]
>>>>> > > NET: Registered protocol family 1
>>>>> > > [ 0.157985] RPC: Registered named UNIX socket transport module.
>>>>> > > [ 0.158000] RPC: Registered udp transport module.
>>>>> > > [ 0.158006] RPC: Registered tcp transport module.
>>>>> > > [ 0.158012] RPC: Registered tcp NFSv4.1 backchannel transport module.
>>>>> > > [ 0.159580] workingset: timestamp_bits=30 max_order=16 bucket_order=0
>>>>> > > [ 0.165885] NFS: Registering the id_resolver key type
>>>>> > > [ 0.165937] Key type id_resolver registered
>>>>> > > [ 0.165945] Key type id_legacy registered
>>>>> > > [ 0.166044] NET: Registered protocol family 38
>>>>> > > [ 0.166103] Block layer SCSI generic (bsg) driver version 0.4 loaded
>>>>> > > (major 247) [ 0.166114] io scheduler mq-deadline registered
>>>>> > > [ 0.166122] io scheduler kyber registered
>>>>> > > [ 0.166828] sun4i-usb-phy 1c13400.phy: Couldn't request ID GPIO
>>>>> > > [ 0.169423] sun5i-pinctrl 1c20800.pinctrl: initialized sunXi PIO
>>>>> > > driver
>>>>> > > [ 0.170946] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pb not found,
>>>>> > > using dummy regulator [ 0.171854] pwm-backlight backlight: supply
>>>>> > > power not found, using dummy regulator [ 0.225448] Serial: 8250/16550
>>>>> > > driver, 8 ports, IRQ sharing disabled [ 0.227473] sun5i-pinctrl
>>>>> > > 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator [
>>>>> > > 0.228494] printk: console [ttyS0] disabled
>>>>> > > [ 0.248662] 1c28400.serial: ttyS0 at MMIO 0x1c28400 (irq = 36,
>>>>> > > base_baud = 1500000) is a U6_16550A [ 0.875214] printk: console
>>>>> > > [ttyS0] enabled
>>>>> > > [ 0.881534] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found,
>>>>> > > using dummy regulator [ 0.895286] sun5i-pinctrl 1c20800.pinctrl:
>>>>> > > supply vcc-pc not found, using dummy regulator [ 0.904892]
>>>>> > > sun5i-pinctrl 1c20800.pinctrl: supply vcc-pe not found, using dummy
>>>>> > > regulator [ 0.915183] libphy: Fixed MDIO Bus: probed
>>>>> > > [ 0.919291] CAN device driver interface
>>>>> > > [ 1.740659] random: fast init done
>>>>> > > [ 1.940948] mcp251x spi0.0: MCP251x didn't enter in conf mode after
>>>>> > > reset [ 1.947761] mcp251x spi0.0: Probe failed, err=16
>>>>> > > [ 1.952433] mcp251x: probe of spi0.0 failed with error -16
>>>>> > > [ 1.958369] enc28j60 spi1.0: Ethernet driver 1.02 loaded
>>>>> > > [ 1.970127] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>>>>> > > [ 1.976658] ehci-platform: EHCI generic platform driver
>>>>> > > [ 1.982563] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
>>>>> > > [ 1.988772] ohci-platform: OHCI generic platform driver
>>>>> > > [ 1.995862] i2c /dev entries driver
>>>>> > > [ 2.002576] sunxi-wdt 1c20c90.watchdog: Watchdog enabled (timeout=16
>>>>> > > sec, nowayout=0) [ 2.012408] sun5i-pinctrl 1c20800.pinctrl: supply
>>>>> > > vcc-pf not found, using dummy regulator [ 2.021889] sunxi-mmc
>>>>> > > 1c0f000.mmc: Got CD GPIO
>>>>> > > [ 2.051130] sunxi-mmc 1c0f000.mmc: initialized, max. request size:
>>>>> > > 16384 KB [ 2.059481] sun4i-ss 1c15000.crypto-engine: Die ID 1
>>>>> > > [ 2.067498] usbcore: registered new interface driver usbhid
>>>>> > > [ 2.073154] usbhid: USB HID core driver
>>>>> > > [ 2.078347] cedrus 1c0e000.video-codec: Device registered as
>>>>> > > /dev/video0
>>>>> > > [ 2.087894] debugfs: Directory '1c22c00.codec' with parent
>>>>> > > 'sun4i-codec' already present! [ 2.100096] NET: Registered protocol
>>>>> > > family 17
>>>>> > > [ 2.104574] can: controller area network core (rev 20170425 abi 9)
>>>>> > > [ 2.110886] NET: Registered protocol family 29
>>>>> > > [ 2.115332] can: raw protocol (rev 20170425)
>>>>> > > [ 2.119597] can: broadcast manager protocol (rev 20170425 t)
>>>>> > > [ 2.125280] can: netlink gateway (rev 20190810) max_hops=1
>>>>> > > [ 2.130991] Key type dns_resolver registered
>>>>> > > [ 2.135370] Registering SWP/SWPB emulation handler
>>>>> > > [ 2.151553] sun5i-pinctrl 1c20800.pinctrl: supply vcc-pd not found,
>>>>> > > using dummy regulator [ 2.160358] sun4i-backend
>>>>> > > 1e60000.display-backend: Couldn't find matching frontend, frontend
>>>>> > > features disabled [ 2.170868] sun4i-drm display-engine: bound
>>>>> > > 1e60000.display-backend (ops 0xc084bb28) [ 2.179113] sun4i-drm
>>>>> > > display-engine: bound 1c0c000.lcd-controller (ops 0xc084a688) [
>>>>> > > 2.186967] sun4i-drm display-engine: bound 1c0a000.tv-encoder (ops
>>>>> > > 0xc084b3e8) [ 2.194748] checking generic (4fda8000 258000) vs hw (0
>>>>> > > ffffffff) [ 2.194757] fb0: switching to sun4i-drm-fb from simple
>>>>> > > [ 2.200423] Console: switching to colour dummy device 80x30
>>>>> > > [ 2.206899] [drm] Initialized sun4i-drm 1.0.0 20150629 for
>>>>> > > display-engine on minor 0 [ 2.215041] [drm] kms: can't enable cloning
>>>>> > > when we probably wanted to. [ 2.253210] mmc0: host does not support
>>>>> > > reading read-only switch, assuming write-enable [ 2.255820] mmc0: new
>>>>> > > high speed SDHC card at address aaaa
>>>>> > > [ 2.256896] mmcblk0: mmc0:aaaa SS16G 14.8 GiB
>>>>> > > [ 2.268565] Console: switching to colour frame buffer device 128x37
>>>>> > > [ 2.268963] mmcblk0: p1 p2
>>>>> > > [ 2.310585] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb frame
>>>>> > > buffer device [ 2.319325] ehci-platform 1c14000.usb: EHCI Host
>>>>> > > Controller
>>>>> > > [ 2.325001] ehci-platform 1c14000.usb: new USB bus registered,
>>>>> > > assigned
>>>>> > > bus number 1 [ 2.333338] ehci-platform 1c14000.usb: irq 24, io mem
>>>>> > > 0x01c14000 [ 2.360058] ehci-platform 1c14000.usb: USB 2.0 started,
>>>>> > > EHCI 1.00 [ 2.367049] hub 1-0:1.0: USB hub found
>>>>> > > [ 2.370931] hub 1-0:1.0: 1 port detected
>>>>> > > [ 2.376142] ohci-platform 1c14400.usb: Generic Platform OHCI
>>>>> > > controller
>>>>> > > [ 2.382899] ohci-platform 1c14400.usb: new USB bus registered,
>>>>> > > assigned
>>>>> > > bus number 2 [ 2.391110] ohci-platform 1c14400.usb: irq 25, io mem
>>>>> > > 0x01c14400 [ 2.465629] hub 2-0:1.0: USB hub found
>>>>> > > [ 2.469499] hub 2-0:1.0: 1 port detected
>>>>> > > [ 2.476836] usb_phy_generic usb_phy_generic.0.auto: supply vcc not
>>>>> > > found, using dummy regulator [ 2.486635] musb-hdrc musb-hdrc.1.auto:
>>>>> > > MUSB HDRC host driver
>>>>> > > [ 2.492497] musb-hdrc musb-hdrc.1.auto: new USB bus registered,
>>>>> > > assigned bus number 3 [ 2.502140] hub 3-0:1.0: USB hub found
>>>>> > > [ 2.505944] hub 3-0:1.0: 1 port detected
>>>>> > > [ 2.511097] ALSA device list:
>>>>> > > [ 2.514077] #0: sun4i-codec
>>>>> > > [ 2.531856] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data
>>>>> > > mode. Opts: (null) [ 2.540153] VFS: Mounted root (ext4 filesystem)
>>>>> > > readonly on device 179:2. [ 2.550891] devtmpfs: mounted
>>>>> > > [ 2.555420] Freeing unused kernel memory: 1024K
>>>>> > > [ 2.561234] Run /sbin/init as init process
>>>>> > > [ 2.565328] with arguments:
>>>>> > > [ 2.565332] /sbin/init
>>>>> > > [ 2.565335] earlyprintk
>>>>> > > [ 2.565339] with environment:
>>>>> > > [ 2.565342] HOME=/
>>>>> > > [ 2.565345] TERM=linux
>>>>> > > [ 2.787451] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
>>>>> > > [ 3.244581] cryptodev: loading out-of-tree module taints kernel.
>>>>> > > [ 3.262087] cryptodev: driver 1.11 loaded.
>>>>> > > [ 3.401014] udevd[93]: starting version 3.2.9
>>>>> > > [ 3.420607] random: udevd: uninitialized urandom read (16 bytes read)
>>>>> > > [ 3.438036] random: udevd: uninitialized urandom read (16 bytes read)
>>>>> > > [ 3.450468] random: udevd: uninitialized urandom read (16 bytes read)
>>>>> > > [ 3.513141] udevd[94]: starting eudev-3.2.9
>>>>> > > [ 5.478117] urandom_read: 1 callbacks suppressed
>>>>> > > [ 5.478129] random: dd: uninitialized urandom read (512 bytes read)
>>>>> > > [ 5.681727] random: dbus-uuidgen: uninitialized urandom read (12 bytes
>>>>> > > read) [ 5.688872] random: dbus-uuidgen: uninitialized urandom read (8
>>>>> > > bytes read) [ 6.382095] enc28j60 spi1.0 eth0: link down
>>>>> > > [ 6.386333] enc28j60 spi1.0 eth0: normal mode
>>>>> > > [ 6.390842] enc28j60 spi1.0 eth0: multicast mode
>>>>> > > [ 6.804280] enc28j60 spi1.0 eth0: multicast mode
>>>>> > > [ 7.062588] enc28j60 spi1.0 eth0: multicast mode
>>>>> > > [ 7.105573] enc28j60 spi1.0 eth0: multicast mode
>>>>> > > [ 7.571521] urandom_read: 2 callbacks suppressed
>>>>> > > [ 7.571531] random: Xorg: uninitialized urandom read (4 bytes read)
>>>>> > > [ 10.011691] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate
>>>>> > > fallback for cbc(des) -2 [ 10.083236] sun4i-ss 1c15000.crypto-engine:
>>>>> > > ERROR: Cannot allocate fallback for cbc(des3_ede) -2 [ 10.219528]
>>>>> > > sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate fallback for
>>>>> > > cbc(aes) -2 [ 10.286269] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot
>>>>> > > allocate fallback for cbc(aes) -2 [ 10.339046] sun4i-ss
>>>>> > > 1c15000.crypto-engine: ERROR: Cannot allocate fallback for cbc(aes)
>>>>> > > -2 [
>>>>> > > 10.589844] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate
>>>>> > > fallback for ecb(aes) -2 [ 10.648573] sun4i-ss 1c15000.crypto-engine:
>>>>> > > ERROR: Cannot allocate fallback for ecb(aes) -2 [ 10.728593] sun4i-ss
>>>>> > > 1c15000.crypto-engine: ERROR: Cannot allocate fallback for ecb(aes)
>>>>> > > -2 [
>>>>> > > 11.339471] random: crng init done
>>>>> > > [ 33.130114] vcc3v0: disabling
>>>>> > > [ 33.133111] vcc5v0: disabling
>>>>> > > [ 33.136076] usb0-vbus: disabling
>>>>> > > [ 52.648035] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate
>>>>> > > fallback for cbc(des) -2 [ 52.698076] sun4i-ss 1c15000.crypto-engine:
>>>>> > > ERROR: Cannot allocate fallback for cbc(des3_ede) -2 [ 52.797900]
>>>>> > > sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate fallback for
>>>>> > > cbc(aes) -2 [ 52.847854] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot
>>>>> > > allocate fallback for cbc(aes) -2 [ 52.897976] sun4i-ss
>>>>> > > 1c15000.crypto-engine: ERROR: Cannot allocate fallback for cbc(aes)
>>>>> > > -2 [
>>>>> > > 53.097935] sun4i-ss 1c15000.crypto-engine: ERROR: Cannot allocate
>>>>> > > fallback for ecb(aes) -2 [ 53.147903] sun4i-ss 1c15000.crypto-engine:
>>>>> > > ERROR: Cannot allocate fallback for ecb(aes) -2 [ 53.198167] sun4i-ss
>>>>> > > 1c15000.crypto-engine: ERROR: Cannot allocate fallback for ecb(aes) -2
>>>>> > > =========================================================================
>>>>> > > =======>
>>>>> > > El miércoles, 16 de diciembre de 2020 a las 4:29:31 UTC+1, Chen-Yu
>>>>> > > Tsai
>>>>> escribió:
>>>>> > >> Hi,
>>>>> > >>
>>>>> > >> On Wed, Dec 16, 2020 at 1:51 AM Sergio Sota <[email protected]>
>>>>> > >> wrote:
>>>>> > >> > Hi Clement and Chen-Yu Tsai,
>>>>> > >> >
>>>>> > >> > this time we send the kernel logs as requested, but before that
>>>>> > >> > here
>>>>> > >> > are our findings. We have inspected the LCD TFT panel and although
>>>>> > >> > it
>>>>> > >> > is from Olimex it is not compatible with the "olimex,lcd-olinuxino"
>>>>> > >> > simple panel driver. It has the very same board but the eeprom ic
>>>>> > >> > is
>>>>> > >> > not present, this time we checked the I2C tracks and the olimex
>>>>> > >> > documentation. It seems that only some models have this eeprom
>>>>> > >> > installed, and the driver needs this to autodetect the panel model.
>>>>> > >> > Also we would like to use diferent panels in the future, so
>>>>> > >> > declaring
>>>>> > >> > the panel in the I2C bus is not an option.
>>>>> > >> >
>>>>> > >> > We make some changes to the device tree, as Chen-Yu Tsai suggested
>>>>> > >> > the
>>>>> > >> > panel should be declared as a panel-dpi (with timings, backlight,
>>>>> > >> > power, etc) Below these lines you could check our complete device
>>>>> > >> > tree. This time nothing happens, in the kernel logs no sun4i-drm
>>>>> > >> > driver messages... but, as we have been trying many many
>>>>> > >> > combinations
>>>>> > >> > without luck, when we disable this panel (status "okay" ->
>>>>> > >> > "disabled")
>>>>> > >> > then in the kernel logs some sun4i-drm driver messages appear (at
>>>>> > >> > last!) some of them complaining about the frontend and the non
>>>>> > >> > existence of panel. By the way,>>
>>>>> > >> > until now we could see on the panel only thanks to the uboot
>>>>> configuration:
>>>>> > >> panel-dpi was introduced in v5.7-rc1. You should check whether
>>>>> > >> something
>>>>> > >> is
>>>>> > >> available in your kernel version before actually using it. We are
>>>>> > >> assuming
>>>>> > >> you are using the latest mainline kernel.
>>>>> > >>
>>>>> > >> Since the new LTS is out, I suggest you give it a try.
>>>>> > >>
>>>>> > >> ChenYu
>>>>> > >>
>>>>> > >> > CONFIG_VIDEO_LCD_MODE="x:1024,y:600,depth:18,pclk_khz:45000,le:150,ri:1
>>>>> > >> > 6,up:21,lo:2,hs:10,vs:2,sync:3,vmode:0"
>>>>> > >> > CONFIG_VIDEO_LCD_POWER="PB10"
>>>>> > >> > CONFIG_VIDEO_LCD_BL_PWM="PB2"
>>>>> > >> >
>>>>> > >> > but when we disable the panel on device tree then the panel turns
>>>>> > >> > off
>>>>> > >> > as linux boot.
>>>>> > >> >
>>>>> > >> > Here comes the device tree [1], the kernel logs [2] (no changes)
>>>>> > >> > and
>>>>> > >> > the messages that appear when we disable the panel [3] (from the
>>>>> > >> > sun4i-drm driver) Note: Don't take into account other messages
>>>>> > >> > regarding the lost of entropy... as we also have problems with
>>>>> > >> > cryptodevice and rng-tools (sunxi crypto) and that is another
>>>>> > >> > story.
>>>>> > >> >
>>>>> > >> > Thanks again for your help and excuse our ignorance :-)
>>>>> > >> >
>>>>> > >> > Best Regards,
>>>>> > >> > Sergio Sota
>>>>> > >> >
>>>>> > >> > #######################################################################
>>>>> > >> > ###########
>>>>> > >> > [1]###################################################################
>>>>> > >> > ############
>>>>> > >> > ######################################################################
>>>>> > >> > ############ /*
>>>>> > >> > * Copyright 2012 Maxime Ripard <[email protected]>
>>>>> > >> > * Copyright 2013 Hans de Goede <[email protected]>
>>>>> > >> > *
>>>>> > >> > * This file is dual-licensed: you can use it either under the terms
>>>>> > >> > * of the GPL or the X11 license, at your option. Note that this
>>>>> > >> > dual
>>>>> > >> > * licensing only applies to this file, and not this project as a
>>>>> > >> > * whole.
>>>>> > >> > *
>>>>> > >> > * a) This file is free software; you can redistribute it and/or
>>>>> > >> > * modify it under the terms of the GNU General Public License as
>>>>> > >> > * published by the Free Software Foundation; either version 2 of
>>>>> > >> > the
>>>>> > >> > * License, or (at your option) any later version.
>>>>> > >> > *
>>>>> > >> > * This file is distributed in the hope that it will be useful,
>>>>> > >> > * but WITHOUT ANY WARRANTY; without even the implied warranty of
>>>>> > >> > * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>>>>> > >> > * GNU General Public License for more details.
>>>>> > >> > *
>>>>> > >> > * Or, alternatively,
>>>>> > >> > *
>>>>> > >> > * b) Permission is hereby granted, free of charge, to any person
>>>>> > >> > * obtaining a copy of this software and associated documentation
>>>>> > >> > * files (the "Software"), to deal in the Software without
>>>>> > >> > * restriction, including without limitation the rights to use,
>>>>> > >> > * copy, modify, merge, publish, distribute, sublicense, and/or
>>>>> > >> > * sell copies of the Software, and to permit persons to whom the
>>>>> > >> > * Software is furnished to do so, subject to the following
>>>>> > >> > * conditions:
>>>>> > >> > *
>>>>> > >> > * The above copyright notice and this permission notice shall be
>>>>> > >> > * included in all copies or substantial portions of the Software.
>>>>> > >> > *
>>>>> > >> > * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>>>>> > >> > * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
>>>>> > >> > * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
>>>>> > >> > * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
>>>>> > >> > * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
>>>>> > >> > * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>>>>> > >> > * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>>>>> > >> > * OTHER DEALINGS IN THE SOFTWARE.
>>>>> > >> > */
>>>>> > >> >
>>>>> > >> > /dts-v1/;
>>>>> > >> > #include "sun5i-a13.dtsi"
>>>>> > >> > #include "sunxi-common-regulators.dtsi"
>>>>> > >> > #include <dt-bindings/gpio/gpio.h>
>>>>> > >> > #include <dt-bindings/pwm/pwm.h>
>>>>> > >> > #include <dt-bindings/interrupt-controller/irq.h>
>>>>> > >> >
>>>>> > >> > / {
>>>>> > >> > model = "Olimex A13-Olinuxino Micro";
>>>>> > >> > compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13";
>>>>> > >> >
>>>>> > >> > aliases {
>>>>> > >> > serial0 = &uart1;
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > chosen {
>>>>> > >> > stdout-path = "serial0:115200n8";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > leds {
>>>>> > >> > compatible = "gpio-leds";
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&led_pins_olinuxinom>;
>>>>> > >> >
>>>>> > >> > power {
>>>>> > >> > label = "a13-olinuxino-micro:green:power";
>>>>> > >> > gpios = <&pio 6 9 GPIO_ACTIVE_HIGH>; /* PG9 */
>>>>> > >> > default-state = "on";
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * clock spi0 mcp2515 (spi can controller)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ clocks {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <1>;
>>>>> > >> > can0_osc_fixed: can0_osc_fixed {
>>>>> > >> > compatible = "fixed-clock";
>>>>> > >> > #clock-cells = <0>;
>>>>> > >> > clock-frequency = <10000000>;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * panel backlight
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ backlight: backlight {
>>>>> > >> > compatible = "pwm-backlight";
>>>>> > >> > pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
>>>>> > >> > brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
>>>>> > >> > default-brightness-level = <8>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * panel tft lcd 10.1" (rgb interface) (default)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ panel {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > compatible = "panel-dpi";
>>>>> > >> > power-supply = <®_vcc3v3>;
>>>>> > >> > enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>;
>>>>> > >> > backlight = <&backlight>;
>>>>> > >> > data-mapping = "rgb666";
>>>>> > >> > width-mm = <224>;
>>>>> > >> > height-mm = <126>;
>>>>> > >> > status = "okay";
>>>>> > >> >
>>>>> > >> > port {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > panel_input: endpoint {
>>>>> > >> > remote-endpoint = <&tcon0_out_lcd>;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > panel-timing {
>>>>> > >> > clock-frequency = <45000000>;
>>>>> > >> > hactive = <1024>;
>>>>> > >> > vactive = <600>;
>>>>> > >> > hfront-porch = <16>;
>>>>> > >> > hback-porch = <150>;
>>>>> > >> > hsync-len = <10>;
>>>>> > >> > vback-porch = <2>;
>>>>> > >> > vfront-porch = <21>;
>>>>> > >> > vsync-len = <2>;
>>>>> > >> > hsync-active = <0>;
>>>>> > >> > vsync-active = <0>;
>>>>> > >> > de-active = <1>;
>>>>> > >> > pixelclk-active = <1>;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * panel tft lcd 7.0" (rgb interface) (test)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ /*
>>>>> > >> > panel {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > compatible = "panel-dpi";
>>>>> > >> > power-supply = <®_vcc3v3>;
>>>>> > >> > enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>;
>>>>> > >> > backlight = <&backlight>;
>>>>> > >> > data-mapping = "rgb666";
>>>>> > >> > width-mm = <154>;
>>>>> > >> > height-mm = <86>;
>>>>> > >> > status = "disabled";
>>>>> > >> >
>>>>> > >> > port {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > panel_input: endpoint {
>>>>> > >> > remote-endpoint = <&tcon0_out_lcd>;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > panel-timing {
>>>>> > >> > clock-frequency = <33000000>;
>>>>> > >> > hactive = <800>;
>>>>> > >> > vactive = <480>;
>>>>> > >> > hfront-porch = <209>;
>>>>> > >> > hback-porch = <16>;
>>>>> > >> > hsync-len = <30>;
>>>>> > >> > vback-porch = <22>;
>>>>> > >> > vfront-porch = <22>;
>>>>> > >> > vsync-len = <1>;
>>>>> > >> > hsync-active = <0>;
>>>>> > >> > vsync-active = <0>;
>>>>> > >> > de-active = <1>;
>>>>> > >> > pixelclk-active = <1>;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> > */
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &ehci0 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &i2c0 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &i2c1 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &i2c2 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &mmc0 {
>>>>> > >> > vmmc-supply = <®_vcc3v3>;
>>>>> > >> > bus-width = <4>;
>>>>> > >> > cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &ohci0 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &otg_sram {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > ®_usb0_vbus {
>>>>> > >> > gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > ®_usb1_vbus {
>>>>> > >> > gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &uart1 {
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&uart1_pg_pins>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &usb_otg {
>>>>> > >> > dr_mode = "otg";
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &usbphy {
>>>>> > >> > usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
>>>>> > >> > /*
>>>>> > >> > PG2 */
>>>>> > >> > usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH |
>>>>> > >> > GPIO_PULL_DOWN)>;
>>>>> > >> > /* PG1 */ usb0_vbus-supply = <®_usb0_vbus>;
>>>>> > >> > usb1_vbus-supply = <®_usb1_vbus>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > &pio {
>>>>> > >> > led_pins_olinuxinom: led-pin {
>>>>> > >> > pins = "PG9";
>>>>> > >> > function = "gpio_out";
>>>>> > >> > drive-strength = <20>;
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi0 pins
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ spi0_pins: spi0_pins {
>>>>> > >> > pins = "PC0", "PC1", "PC2";
>>>>> > >> > function = "spi0";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > spi0_cs0_pin: spi0_cs_pin {
>>>>> > >> > pins = "PC3";
>>>>> > >> > function = "spi0";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi2 ethernet controller (enc28j60) pins
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ eth0_irq_pin: eth0_irq_pin {
>>>>> > >> > pins = "PB3";
>>>>> > >> > function = "irq";
>>>>> > >> > bias-pull-up;
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi2 pins
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ spi2_pins: spi2_pins {
>>>>> > >> > pins = "PE1", "PE2", "PE3";
>>>>> > >> > function = "spi2";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > spi2_cs0_pin: spi2_cs0_pin {
>>>>> > >> > pins = "PE0";
>>>>> > >> > function = "spi2";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi0 can controller (mcp2515) pins
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ can0_irq_pin: can0_irq_pin {
>>>>> > >> > pins = "PB4";
>>>>> > >> > function = "irq";
>>>>> > >> > bias-pull-up;
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi0 (mcp2515 spi can controller)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &spi0 {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
>>>>> > >> > status = "okay";
>>>>> > >> >
>>>>> > >> > mcp2515@0 {
>>>>> > >> > compatible = "microchip,mcp2515";
>>>>> > >> > reg = <0>;
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&can0_irq_pin>;
>>>>> > >> > interrupt-parent = <&pio>;
>>>>> > >> > interrupts = <1 4 2>; /* PB4 IRQ_TYPE_EDGE_FALLING */
>>>>> > >> > clocks = <&can0_osc_fixed>;
>>>>> > >> > spi-max-frequency = <10000000>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * spi2 (enc28j60 spi ethernet controller)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &spi2 {
>>>>> > >> > #address-cells = <1>;
>>>>> > >> > #size-cells = <0>;
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&spi2_pins>, <&spi2_cs0_pin>;
>>>>> > >> > status = "okay";
>>>>> > >> >
>>>>> > >> > enc28j60@0 {
>>>>> > >> > compatible = "microchip,enc28j60";
>>>>> > >> > /* compatible = "microchip,encx24j600"; */
>>>>> > >> > reg = <0>;
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <ð0_irq_pin>;
>>>>> > >> > interrupt-parent = <&pio>;
>>>>> > >> > interrupts = <1 3 2>; /* PB3 IRQ_TYPE_EDGE_FALLING */
>>>>> > >> > spi-max-frequency = <12000000>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * codec audio controller (headphones)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &codec {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * crypto engine (sha, md5, rng)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &crypto {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * [fe0] -> [be0] -> [tcon0] |-> [panel] (tft lcd 10.1") <-
>>>>> > >> > [pwm]
>>>>> > >> > * |-> [tve0] (vga/cvbs port)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * front end (display engine)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &fe0 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * back end (display engine)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &be0 {
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * pipeline (display engine)
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &tcon0 {
>>>>> > >> > pinctrl-names = "default";
>>>>> > >> > pinctrl-0 = <&lcd_rgb666_pins>;
>>>>> > >> > status = "okay";
>>>>> > >> > };
>>>>> > >> >
>>>>> > >> > /**********************************************************************
>>>>> > >> > ******* * timing controller (panel tft lcd 10.1")
>>>>> > >> > ***********************************************************************
>>>>> > >> > ******/ &tcon0_out {
>>>>> > >> > tcon0_out_lcd: endpo
>
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