Mike, I think you should set 'optargs' argument at the same line off
'bootargs'.
Here's an example that I used to disable Hdmi (virtual) cape:
bootargs=console=ttyO0,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext4
rootwait optargs=quiet
capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN \n
uenvcmd=mmc dev ${mmcdev};load mmc ${mmcdev} ${loadaddr} uImage;load mmc
${mmcdev} ${fdtaddr} am335x-boneblack.dtb;bootm ${loadaddr} - ${fdtaddr} \n
I've added the '\n' just here, to show where the line ends.
Jerônimo Lopes
2014-07-04 10:06 GMT-03:00 mike rankin <[email protected]>:
> I have a 2G BBB running the latest Debian and I'm following the Adafruit
> Oled Learning tutorial located here:
> https://learn.adafruit.com/ssd1306-oled-displays-with-raspberry-pi-and-beaglebone-black/wiring
>
> but adding the line *optargs=capemgr.enable_partno=BB-SPIDEV0 *to uEnv.txt
> and rebooting bricks my BBB. When the line is added and I reboot all the
> leds are lit and I cannot communicate to it. I have to flash the OS to get
> it working again.
>
> Mike
>
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