Cape Manager - cannot see HDMI & eMMC (4.1.18-ti-rt kernel)

I just upgraded by kernel and dtc version. Here are their outputs:

frank@beaglebone:/media$ uname -r
frank@beaglebone:/media$ dtc --version
Version: DTC 1.4.1-g1e75ebc9


Now when I check slots, HDMI & eMMC are not shown:

frank@beaglebone:/media$ cat /sys/devices/platform/bone_capemgr/slots 0: PF---- -1 1: PF---- -1 2: PF---- -1 3: PF---- -1 4: P-O-L- 0 Override Board Name,00A0,Override Manuf,cape-universaln

What might be the problem? What should I do?

I just checked, and seems like HDMI & eMMC are disabled by default, is it true? How can I be sure that those pins are not being used by HDMI & eMMC?


‘Enabled’ by default… Read the readme again, for the correct dtb= option for HDMI and emmc disabled.


Thank you so much for your reply Robert, sorry I misread it. Then I have another question, then what it is the reason that when I check $SLOTS, I cannot see HDMI & emmc? Here is the output again:

frank@beaglebone:~/chp13/overlay$ cat $SLOTS 0: PF---- -1 1: PF---- -1 2: PF---- -1 3: PF---- -1

Also, I added:



to uEnv.txt, however I since I cannot see HDMI & eMMC under $SLOTS, then how can I be sure that I freed them successfully?

Thanks again!

Btw Robert, this is my uEnv.txt file:

##These are needed to be compliant with Angstrom’s 2013.06.20 u-boot.



##These are needed to be compliant with Debian 2014-05-14 u-boot.

loadximage=echo debug: [/boot/vmlinuz-${uname_r}] … ; load mmc 0:2 ${loadaddr} /boot/vmlinuz-${uname_r}
loadxfdt=echo debug: [/boot/dtbs/${uname_r}/${fdtfile}] … ;load mmc 0:2 ${fdtaddr} /boot/dtbs/${uname_r}/${fdtfile}
loadxrd=echo debug: [/boot/initrd.img-${uname_r}] … ; load mmc 0:2 ${rdaddr} /boot/initrd.img-${uname_r}; setenv rdsize ${filesize}
loaduEnvtxt=load mmc 0:2 ${loadaddr} /boot/uEnv.txt ; env import -t ${loadaddr} ${filesize};
check_dtb=if test -n ${dtb}; then setenv fdtfile ${dtb};fi;
loadall=run loaduEnvtxt; run check_dtb; run loadximage; run loadxrd; run loadxfdt;

mmcargs=setenv bootargs console=tty0 console=${console} ${optargs} ${cape_disable} ${cape_enable} root=/dev/mmcblk0p2 rootfstype=${mmcrootfstype} ${cmdline}

##Disable HDMI/eMMC (v3.8.x)

uenvcmd=run loadall; run mmcargs; echo debug: [${bootargs}] … ; echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] … ; bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr};



Because they are not separate dtbo objects in v4.1.x


Sorry for spamming but wanted to ask just to be sure: so there is no way to be sure that I could disable hdmi & eMMC successfully?


What do you mean "to be sure"...

"read" the readme.txt:


BBB compatibility issues:

set the dtb for what you want.. and they set what they set..