Hello community,
I'm working on a project based on imx6Solo CPU. In opposite to the SabreSD reference board I would like to use Paralled LCD instead of the LVDS display.
I added LCD display by modifying the files board-mx6q_sabresd.c and mxc_lcdif.c (changes attached as lcd.txt).
After this change I was able to boot either using LCD
> setenv bootargs console=ttymxc2,115200 androidboot.console=ttymxc2 vmalloc=400M init=/init video=mxcfb0:dev=lcd,EWUZ,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28M androidboot.hardware=freescale rw
or HDMI
> setenv bootargs console=ttymxc2,115200 androidboot.console=ttymxc2 vmalloc=400M init=/init video=mxcfb0:dev=hdmi,640x480@60,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28M androidboot.hardware=freescale rw
Trying to use both at the same time
> setenv bootargs console=ttymxc2,115200 androidboot.console=ttymxc2 vmalloc=400M init=/init video=mxcfb0:dev=lcd,MYLCD,bpp=32 video=mxcfb1:dev=hdmi,640x480@60,bpp=32 video=mxcfb2:off fbmem=28M androidboot.hardware=freescale rw
resulted in the error:
mxc_sdc_fb mxc_sdc_fb.0: register mxc display driver lcd
mxc_sdc_fb mxc_sdc_fb.1: register mxc display driver hdmi
mxc_hdmi mxc_hdmi: Detected HDMI controller 0x13:0x1a:0xa0:0xc1
mxc_sdc_fb mxc_sdc_fb.1: ipu0-di0 already in use
mxc_sdc_fb: probe of mxc_sdc_fb.1 failed with error -16
I noticed that the LVDS display on SabreSD board is using disp_id = 1 and modified the file board-mx6q_sabresd.c accordingly:
Index: board-mx6q_sabresd.c
===================================================================
static struct fsl_mxc_lcd_platform_data lcdif_data = {
.ipu_id = ,
- .disp_id = 0,
+ .disp_id = 1,
.default_ifmt = IPU_PIX_FMT_RGB565,
};
Unfortunatelly, after this change I'm not able to see anything on the LCD.
Do I have to force IPU to output LCD data using different display interface (DI1)?
How should I configure IOMUXC_GPR3?
Any help would be appreciated!
Tomasz
Original Attachment has been moved to: lcd.txt.zip
