Hello Robert, Many thanks for your prompt reply.
I would like to set the gpio4 & gpio5 (normally used for eMMC) as an output but the logic level remains 0 even after echo 1 > value. Regards, YA Le dimanche 7 février 2016 23:04:48 UTC+1, RobertCNelson a écrit : > > On Sun, Feb 7, 2016 at 3:58 PM, YA <[email protected] <javascript:>> > wrote: > > Hello, > > > > I would like to add a Cape Bacon on a BBB rev A6 but I can't load & use > the > > specific device tree for this cape. > > > > I'm using Debian 7.9 for BBB on uSDCard. > > > > root@beaglebone:~# uname -a > > > > Linux beaglebone 3.8.13-bone79 #1 SMP Tue Oct 13 20:44:55 UTC 2015 > armv7l > > GNU/Linux > > > > > > I've disabled HDMI & eMMC to prevent any I/O conflict since Cape Bacon > uses > > gpio4, gpio5... > > > > My serial EEPROM on the Cape Bacon is empty (i.e. filled with 0xFF > values), > > I don't know why. > > > > Slots seem to be ok. > > > > root@beaglebone:~# cat /sys/devices/bone_capemgr.9/slots > > > > 0: 54:PF--- > > > > 1: 55:PF--- > > > > 2: 56:PF--- > > > > 3: 57:PF--- > > > > 4: ff:P-O-- Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G > > > > 5: ff:P-O-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI > > > > 6: ff:P-O-- Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN > > > > 7: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-BONE-BACONE > > > > > > The BB-BONE-BACONE-00A0.dtbo seems to be loaded > > > > dmesg | grep cape > > > > [ 0.000000] Kernel command line: console=tty0 console=ttyO0,115200n8 > > capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G > > root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M quiet > > init=/lib/systemd/systemd cape_universal=enable > > > > [ 0.875286] bone-capemgr bone_capemgr.9: Baseboard: > > 'A335BNLT,00A6,4913BBBK0700' > > > > [ 0.875326] bone-capemgr bone_capemgr.9: > > compatible-baseboard=ti,beaglebone-black > > > > [ 0.875372] bone-capemgr bone_capemgr.9: Skipping disabled cape with > > part# BB-BONE-EMMC-2G > > > > [ 0.875419] bone-capemgr bone_capemgr.9: Skipping disabled cape with > > part# BB-BONELT-HDMI > > > > [ 0.875504] bone-capemgr bone_capemgr.9: Skipping disabled cape with > > part# BB-BONELT-HDMIN > > > > [ 0.906506] bone-capemgr bone_capemgr.9: slot #0: No cape found > > > > [ 0.943614] bone-capemgr bone_capemgr.9: slot #1: No cape found > > > > [ 0.980722] bone-capemgr bone_capemgr.9: slot #2: No cape found > > > > [ 1.017831] bone-capemgr bone_capemgr.9: slot #3: No cape found > > > > [ 1.024099] bone-capemgr bone_capemgr.9: slot #4: specific override > > > > [ 1.024137] bone-capemgr bone_capemgr.9: bone: Using override eeprom > data > > at slot 4 > > > > [ 1.024164] bone-capemgr bone_capemgr.9: slot #4: > > 'Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G' > > > > [ 1.024298] bone-capemgr bone_capemgr.9: slot #5: specific override > > > > [ 1.024329] bone-capemgr bone_capemgr.9: bone: Using override eeprom > data > > at slot 5 > > > > [ 1.024354] bone-capemgr bone_capemgr.9: slot #5: > > 'Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI' > > > > [ 1.024492] bone-capemgr bone_capemgr.9: slot #6: specific override > > > > [ 1.024522] bone-capemgr bone_capemgr.9: bone: Using override eeprom > data > > at slot 6 > > > > [ 1.024547] bone-capemgr bone_capemgr.9: slot #6: > > 'Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN' > > > > [ 1.024818] bone-capemgr bone_capemgr.9: Skipping loading of disabled > > cape with part# BB-BONE-EMMC-2G > > > > [ 1.024842] bone-capemgr bone_capemgr.9: Skipping loading of disabled > > cape with part# BB-BONELT-HDMI > > > > [ 1.024862] bone-capemgr bone_capemgr.9: Skipping loading of disabled > > cape with part# BB-BONELT-HDMIN > > > > [ 1.024880] bone-capemgr bone_capemgr.9: initialized OK. > > > > [ 10.532360] bone-capemgr bone_capemgr.9: part_number > 'BB-BONE-BACONE', > > version 'N/A' > > > > [ 10.532424] bone-capemgr bone_capemgr.9: slot #7: generic override > > > > [ 10.532436] bone-capemgr bone_capemgr.9: bone: Using override eeprom > data > > at slot 7 > > > > [ 10.532448] bone-capemgr bone_capemgr.9: slot #7: 'Override Board > > Name,00A0,Override Manuf,BB-BONE-BACONE' > > > > [ 10.532536] bone-capemgr bone_capemgr.9: slot #7: Requesting part > > number/version based 'BB-BONE-BACONE-00A0.dtbo > > > > [ 10.532547] bone-capemgr bone_capemgr.9: slot #7: Requesting firmware > > 'BB-BONE-BACONE-00A0.dtbo' for board-name 'Override Board Name', version > > '00A0' > > > > [ 10.532569] bone-capemgr bone_capemgr.9: slot #7: dtbo > > 'BB-BONE-BACONE-00A0.dtbo' loaded; converting to live tree > > > > [ 10.532983] bone-capemgr bone_capemgr.9: slot #7: #7 overlays > > > > [ 10.621483] bone-capemgr bone_capemgr.9: slot #7: Applied #7 > overlays. > > > > > > Everything looks fine but the device tree is not loaded > > Are you sure? > > "bone-capemgr bone_capemgr.9: slot #7: Applied #7 overlays." > > Looks loaded to me.. > > What are you expecting? > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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