On Mon, May 30, 2016 at 4:16 PM, Andrey Somov <public.so...@gmail.com> wrote:
> Hi all, > my SPI0 is configured and it works (the device which is connected to SPI0 > functions properly) > Unfortunately, I do not understand how it is configured and I cannot ask > the author. > > Can you please give me a hint where I can find the configuration ? > > root@beaglebone:~# uname -a > Linux beaglebone 3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 armv7l > GNU/Linux > > 1) The overlay looks good: > 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-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G > 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI > 7: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-SPIDEV0 > > 2) dmesg does not not say why BB-SPIDEV0 is loaded: > > [ 177.147378] bone-capemgr bone_capemgr.9: part_number 'BB-SPIDEV0', > version 'N/A' > [ 177.150423] bone-capemgr bone_capemgr.9: slot #7: generic override > [ 177.150483] bone-capemgr bone_capemgr.9: bone: Using override eeprom > data at slot 7 > [ 177.150533] bone-capemgr bone_capemgr.9: slot #7: 'Override Board > Name,00A0,Override Manuf,BB-SPIDEV0' > [ 177.150781] bone-capemgr bone_capemgr.9: slot #7: Requesting part > number/version based 'BB-SPIDEV0-00A0.dtbo > [ 177.150828] bone-capemgr bone_capemgr.9: slot #7: Requesting firmware > 'BB-SPIDEV0-00A0.dtbo' for board-name 'Override Board Name', version '00A0' > [ 177.150898] bone-capemgr bone_capemgr.9: slot #7: dtbo > 'BB-SPIDEV0-00A0.dtbo' loaded; converting to live tree > [ 177.154033] bone-capemgr bone_capemgr.9: slot #7: #2 overlays > > 3) /boot/uEnv.txt does NOT have any changes (everything is commented out) > > 4) /etc/default/capemgr does not contain SPI: > > # Default settings for capemgr. This file is sourced by /bin/sh from > # /etc/init.d/capemgr.sh > > # Options to pass to capemgr > CAPE= > > 5) /etc/init.d/capemgr.sh does not have hard-coded BB-SPIDEV0 > > 6) I decompile am335x-boneblack.dtb but there is no BB-SPIDEV0: > > dtc -O dts -o ~/am335x-boneblack.dts -I dtb > /boot/dtbs/3.8.13-bone70/am335x-boneblack.dtb > > root@beaglebone:~# grep part-number ~/am335x-boneblack.dts | sed > 's/^\s\+//' > part-number = "BB-BONE-GEIGER"; > part-number = "BB-BONE-NIXIE"; > part-number = "BB-BONE-TFT-01"; > part-number = "BB-BONE-RTC-01"; > part-number = "BB-BONE-HEXY-01"; > part-number = "BB-BONE-MRF24J40"; > part-number = "BB-BONE-RS232-01"; > part-number = "BB-BONE-GPS-01"; > part-number = "BB-BONE-EMMC-2G"; > part-number = "BB-BONELT-HDMI"; > part-number = "BB-BONELT-HDMIN"; > part-number = "BB-BONE-DVID-01"; > part-number = "BB-BONE-EMMC-2G"; > part-number = "BB-BONE-GEIGER"; > part-number = "BB-BONE-LCD3-01"; > part-number = "BB-BONE-WTHR-01"; > part-number = "BB-BONELT-HDMI"; > part-number = "BB-BONE-NIXIE"; > part-number = "BB-BONE-TFT-01"; > part-number = "BB-BONE-RTC-01"; > part-number = "BB-BONE-HEXY-01"; > part-number = "BB-BONE-MRF24J40"; > part-number = "BB-BONE-EXPTEST"; > part-number = "BB-BONE-RS232-01"; > part-number = "BB-BONE-GPS-01"; > part-number = "BB-BONELT-HDMIN"; > part-number = "2191"; > part-number = "BB-BONE-LOGIBONE"; > > Why BB-SPIDEV0 is loaded ? > cat /proc/cmdline 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. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYgs4vf%3DzNXm%2Bbt0H7VjEDMAERaJJp0dSi2e20NvY0AL5A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
