Hi,
I've been able to get my i.mx6sl-evk with EPD daughter card booting up to the shell using the ltib output. I rebuilt the kernel to add the panel driver in the config. After that, I did:
setenv bootargs console=ttymxc0,115200 root=/dev/mmcblk0p1 rootwait video=mxcepdcfb:E060SCM,bpp=16
and then after getting to the console, I did:
root@freescale ~$ find / -name \*epd\*
/lib/firmware/imx/epdc_E97_V110.fw
/lib/firmware/imx/epdc_E60_V110.fw
/lib/firmware/imx/epdc_E060SCM.fw
/lib/firmware/imx/epdc_Exx_ROGUE.fw
/lib/firmware/imx/epdc_E60_V220.fw
/lib/modules/3.0.35-2666-gbdde708/kernel/drivers/video/mxc/mxc_epdc_fb.ko
/sys/devices/platform/imx_epdc_fb
/sys/bus/platform/devices/imx_epdc_fb
insmod /lib/modules/3.0.35-2666-gbdde708/kernel/drivers/video/mxc/mxc_epdc_fb.ko
Console: switching to colour frame buffer device 100x37
root@freescale ~$ imx_epdc_fb imx_epdc_fb: Unsuccessfully received channel!!!!
imx_epdc_fb imx_epdc_fb: PxP chan init failed
imx_epdc_fb imx_epdc_fb: Unable to submit PxP update task.
I saw the panel flash a bit and it looks clear white. The error message above about chan init failed makes me suspicious whether it will work correctly.
root@freescale ~$ fbset -i
mode "800x600-0"
# D: 0.037 MHz, H: 0.041 kHz, V: 0.067 Hz
geometry 800 600 800 1280 16
timings 26666667 8 100 4 8 4 1
rgba 5/11,6/5,5/0,0/0
endmode
Frame buffer device information:
Name : mxc_epdc_fb
Address : 0x8a400000
Size : 2179072
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 1600
Accelerator : No
So now I'm looking for some tools with which I can test the EPD panel. Meaning draw some stuff to the panel. I found the following document:
https://community.freescale.com/docs/DOC-93622
But the tools mentioned in that document like:
$ cd /unit_tests
$ ./mxc_epdc_fb_test.out
do not seem to be present.
I had done:
./ltib -m prep -p imx-test
./ltib -m scbuild -p imx-test
and on the target rootfs I can see:
ls rootfs/unit_tests/
all-suite.txt autorun-mmc-fs.sh autorun-usb-gadget.sh check_minor_open.out etm mxc_iim_test.out mxc_tve_test.sh wdt_driver_test.out
ar3k-bt-start.sh autorun-mmc-mkfs.sh autorun-usb-host.sh check_mixer.out hciattach-ar3k.bin mxc_irlan_test.sh mxc_uart_test.out
autorun-ata.sh autorun-mmc.sh autorun-v4l2.sh check_recording.out memtool mxc_keyb_test.sh mxc_uart_xmit_test.out
...
| autorun-mmc-fdisk.sh | autorun-sound.sh | check_ioctls.out | dump-clocks.sh | mxc_i2c_test_usb.out | mxc_tuner_test.sh | test-utils.sh |
but no epdc test. It seems like it is in the source but is not getting built:
lucid@ubuntu:~/6sl/ltib$ find /home/lucid/6sl/ltib/rpm/BUILD/imx-test-3.0.35-4.1.0/test/ -name \*epdc\*
/home/lucid/6sl/ltib/rpm/BUILD/imx-test-3.0.35-4.1.0/test/mxc_x11_test/mxc_epdc_x11_fb_test.c
/home/lucid/6sl/ltib/rpm/BUILD/imx-test-3.0.35-4.1.0/test/mxc_fb_test/mxc_epdc_fb_test.c
I haven't yet seen how to get these tests added to the build.
Thanks,
jaya
