Ah, you found a fun bug in the old path.. I'll fix it up for the next
person, but you can go down the new path with your setup...
console=ttyO0,115200n8 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait
1 coherent_pool=1M net.ifnames=0
This was set by:
"args_mmc=run finduuid;setenv bootargs console=${console} " \
"${cape_disable} " \
"${cape_enable} " \
"${cape_uboot} " \
"root=PARTUUID=${uuid} ro " \
"rootfstype=${mmcrootfstype} " \
"${uboot_detected_capes} " \
"${cmdline}\0" \
the 1 comes from uboot_detected_capes, which get's set to 1 when it
detects a cape, then i use it to pass the name of the cape the kernel
via:
"if test -n ${uboot_detected_capes}; then " \
"echo uboot_overlays:
[uboot_detected_capes=${uboot_detected_capes_addr0}${uboot_detected_capes_addr1}${uboot_detected_capes_addr2}${uboot_detected_capes_addr3}]
... ;" \
"setenv uboot_detected_capes
uboot_detected_capes=${uboot_detected_capes_addr0}${uboot_detected_capes_addr1}${uboot_detected_capes_addr2}${uboot_detected_capes_addr3};
" \
"fi;" \
But that's hidden behind:
"if test -n ${enable_uboot_overlays}; then " \
So also looking what your doing:
> Loaded environment from /boot/uEnv.txt
> debug: [dtb=am335x-boneblack-emmc-overlay.dtb] ...
> Using: dtb=am335x-boneblack-emmc-overlay.dtb ...
> Checking if uname_r is set in /boot/uEnv.txt...
> gpio: pin 56 (gpio 56) value is 1
> Running uname_boot ...
> loading /boot/vmlinuz-4.4.113-ti-r148 ...
> 9447320 bytes read in 614 ms (14.7 MiB/s)
> loading /boot/dtbs/4.4.113-ti-r148/am335x-boneblack-emmc-overlay.dtb ...
> 60416 bytes read in 34 ms (1.7 MiB/s)
> uboot_overlays: add [enable_uboot_overlays=1] to /boot/uEnv.txt to enable...
> loading /boot/initrd.img-4.4.113-ti-r148 ...
in /boot/uEnv.txt
remove your: dtb=am335x-boneblack-emmc-overlay.dtb
Then set:
enable_uboot_overlays=1
disable_uboot_overlay_video=1
Also.. we can whitelist the video based on your cape in u-boot:
debug: process_cape_part_number:[BB-BLE]
debug: process_cape_part_number:[42422D424C45]
BeagleBone: cape eeprom: i2c_probe: 0x54:
/lib/firmware/BB-BLE-00A0.dtbo [0x1a9643f]
Just create a pull request on:
https://github.com/beagleboard/bb.org-overlays
and i'll then add it to the u-boot white list.. (that way video get's
auto disabled)
Regards,
--
Robert Nelson
https://rcn-ee.com/
--
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