/dev/i2c-1 missing on Pocket Beagle

[Mark A. Yoder]

I fired up a Pocket Beagle today with the 2018-10-28 image and notice /dev/i2c-1 is missing.  

Here's what dmesg says:

bone $ dmesg -H | grep i2c

[  +0.000852] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe

[  +0.000063] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_bb_i2c1_pins, deferring probe

[  +0.000937] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 400 kHz

[  +0.001268] i2c /dev entries driver

[  +0.007484] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0

[  +0.000108] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz

[  +0.000759] pinctrl-single 44e10800.pinmux: pin PIN97 already requested by ocp:P2_09_pinmux; cannot claim for 4802a000.i2c

[  +0.011333] pinctrl-single 44e10800.pinmux: pin-97 (4802a000.i2c) status -22

[  +0.007129] pinctrl-single 44e10800.pinmux: could not request pin 97 (PIN97) from group pinmux_bb_i2c1_pins  on device pinctrl-single

[  +0.012083] omap_i2c 4802a000.i2c: Error applying setting, reverse things back

[  +0.007347] omap_i2c: probe of 4802a000.i2c failed with error -22

And 

bone$ sudo /opt/scripts/tools/version.sh 

git:/opt/scripts/:[e9bcff232834702c1c810710706ee815d77b080b]

eeprom:[A335PBGL00A21750EPB02572]

model:[TI_AM335x_PocketBeagle]

dogtag:[BeagleBoard.org Debian Image 2018-10-28]

bootloader:[microSD]:[/dev/mmcblk0]:[U-Boot 2018.09-00002-gd5b4c4b656]:[location: dd MBR]

kernel:[4.14.71-ti-r81]

nodejs:[v6.14.4]

uboot_overlay_options:[enable_uboot_overlays=1]

uboot_overlay_options:[uboot_overlay_addr4=/lib/firmware/BB-I2C1A-FAST-00A0.dtbo]

uboot_overlay_options:[disable_uboot_overlay_video=1]

uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo]

uboot_overlay_options:[enable_uboot_cape_universal=1]

pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>]

pkg:[bb-cape-overlays]:[4.4.20181019.0-0rcnee0~stretch+20181019]

pkg:[bb-wl18xx-firmware]:[1.20180517-0rcnee0~stretch+20180517]

pkg:[kmod]:[23-2rcnee1~stretch+20171005]

pkg:[librobotcontrol]:[1.0.3-git20181009.0-0rcnee0~stretch+20181010]

pkg:[firmware-ti-connectivity]:[20170823-1rcnee1~stretch+20180328]

groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal i2c bluetooth netdev cloud9ide gpio pwm eqep admin spi tisdk weston-launch xenomai]

cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet]

dmesg | grep pinctrl-single

[    1.106310] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568

[    1.381858] pinctrl-single 44e10800.pinmux: pin PIN97 already requested by ocp:P2_09_pinmux; cannot claim for 4802a000.i2c

[    1.393191] pinctrl-single 44e10800.pinmux: pin-97 (4802a000.i2c) status -22

[    1.400320] pinctrl-single 44e10800.pinmux: could not request pin 97 (PIN97) from group pinmux_bb_i2c1_pins  on device pinctrl-single

dmesg | grep gpio-of-helper

[    1.114738] gpio-of-helper ocp:cape-universal: ready

END

What's up?

--Mark

p.s.  Switching to i2c2 I was able to get my SparkFun IRArray working!

[Robert Nelson]

You need to use dtbo's with the "PB-" prefix.. there's a phandle name
conflict in the above..

Regards,

--
Robert Nelson
https://rcn-ee.com/

[Mark A. Yoder]

Is it normal for it to be missing on bootup?

--Mark

[Mark A. Yoder]

I think I found by problem.  I was working on the Green Wireless and then transferred the SD card to the Pocket.  I forgot to restore /boot/uEnv.txt.

Thanks for the help...

--Mark