Hello,
I am trying to migrate a project from Yocto Pyro (3.14 kernel) to
Sumo and a newer kernel on the i.MX6 Wandboard Quad.
I am following the instructions in the i.MX_Yocto_Project_User's_Guide,
to build. To summarize, I am using:
repo init -u
https://source.codeaurora.org/external/imx/imx-manifest -b
imx-linux-sumo -m imx-4.14.98-2.0.0_ga.xml
DISTRO=fsl-imx-fb MACHINE=wandboard source fsl-setup-release.sh
-b build-fb
bitbake fsl-image-machine-test
The problem is that the built linux image has no fb device and this
causes many other problems, such as with V4L2, OpenGL ES and even NXP's
unit tests, such as:
./mxc_vpu_test -D "-f0 -x0 -i akiyo.mp4"
[ERR] unable to open fb0
Even 'fbset' fails, with:
open /dev/fb0: No such file or directory
As best as I can tell, fb support should be enabled. Here is the
relevant portion of my defconfig:
CONFIG_DRM=y
CONFIG_DRM_VIVANTE=y
CONFIG_FB=y
CONFIG_FB_MXS=y
CONFIG_FB_MXC_SYNC_PANEL=y
CONFIG_FB_MXC_MIPI_DSI=y
CONFIG_FB_MXC_MIPI_DSI_SAMSUNG=y
CONFIG_FB_MXC_TRULY_WVGA_SYNC_PANEL=y
CONFIG_FB_MXC_TRULY_PANEL_TFT3P5079E=y
CONFIG_FB_MXC_TRULY_PANEL_TFT3P5581E=y
CONFIG_FB_MXC_LDB=y
CONFIG_FB_MXC_HDMI=y
CONFIG_FB_MXS_SII902X=y
CONFIG_FB_MXC_DCIC=m
CONFIG_HANNSTAR_CABC=y
CONFIG_FB_MXC_EINK_PANEL=y
CONFIG_FB_MXC_EINK_V2_PANEL=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_L4F00242T03=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_PWM=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_MXC_IPU=y
CONFIG_MXC_IPU_V3_PRE=y
CONFIG_MXC_SIM=y
CONFIG_MXC_MIPI_CSI2=y
CONFIG_MXC_HDMI_CEC=y
CONFIG_MXC_GPU_VIV=y
I have found that the fb device will work if I select the
'CONFIG_DRM_ETNAVIV' option, instead of 'CONFIG_DRM_VIVANTE', but I need
the Vivante option to get their newer drivers.
Can someone please advise how I can resolve this issue?
Any assistance would be greatly appreciated.
Thank You, Clay Montgomery
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