On Tue, Jun 30, 2015 at 4:32 PM, Ross Morrison <[email protected]> wrote:
> Thanks for the super quick response Robert, but here is what I have in
> uEnv.txt and what dmesg shows:
>
> snippet from uEnv.txt
> =======================
> #HDMI/eMMC disabled:
> dtb=am335x-boneblack-overlay.dtb
>
> ##cape-universal
> #dtb=am335x-boneblack-universal.dtb
>
> ##wl1835
> #dtb=am335x-boneblack-wl1835mod.dtb
>
> ##replicape
> #dtb=am335x-boneblack-replicape.dtb
> cmdline=coherent_pool=1M quiet
>
> #In the event of edid real failures, uncomment this next line:
> #cmdline=coherent_pool=1M quiet video=HDMI-A-1:1024x768@60e
>
> ##Example v3.8.x
> #cape_disable=capemgr.disable_partno=
> #cape_enable=capemgr.enable_partno=
>
> ##Example v4.1.x
> #cape_disable=bone_capemgr.disable_partno=
> #cape_enable=bone_capemgr.enable_partno=BB-UART4
>
> #Disable HDMI/eMMC
> cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G

This ^^ is for v3.8.x, don't confuse 4.1.x...

> cape_enable=bone_capemgr.enable_partno=BB-UART4

debian@beaglebone:~$ cat /boot/uEnv.txt | grep UART
cape_enable=bone_capemgr.enable_partno=BB-UART4

>
> ##Disable HDMI
> ===================================
>
>
> snipped from dmesg:
> ===============================================================
>
> [    3.232255] bone_capemgr bone_capemgr: slot #0: No cape found
> [    3.292247] bone_capemgr bone_capemgr: slot #1: No cape found
> [    3.352245] bone_capemgr bone_capemgr: slot #2: No cape found
> [    3.412239] bone_capemgr bone_capemgr: slot #3: No cape found
> [    3.418291] bone_capemgr bone_capemgr: enabled_partno PARTNO 'BB-UART4'
> VER 'N/A' PR '0'
> [    3.418305] bone_capemgr bone_capemgr: slot #4: override
> [    3.418318] bone_capemgr bone_capemgr: Using override eeprom data at slot
> 4
> [    3.418332] bone_capemgr bone_capemgr: slot #4: 'Override Board
> Name,00A0,Override Manuf,BB-UART4'
> [    3.418537] bone_capemgr bone_capemgr: initialized OK.
> [    3.462319] usb 1-1: new high-speed USB device number 2 using musb-hdrc
> [    3.482246] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
> [    3.482257] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
> [    3.482551] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]
> [    3.482574] davinci_mdio: dt: updated phy_id[1] from phy_mask[fffffffe]
> [    3.487411] libphy: 4a101000.mdio: probed
> [    3.487437] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00,
> driver SMSC LAN8710/LAN8720
> [    3.488107] cpsw 4a100000.ethernet: Detected MACID = 78:a5:04:c0:f7:5f
> [    3.489340] omap_rtc 44e3e000.rtc: setting system clock to 2015-06-30
> 21:16:52 UTC (1435699012)
> [    3.489366] of_cfs_init
> [    3.489456] of_cfs_init: OK
> [    3.492823] PM: Hibernation image not present or could not be loaded.
> [    3.493672] Freeing unused kernel memory: 444K (c094f000 - c09be000)
> [    3.573293] systemd-udevd[85]: starting version 215
> [    3.575088] random: systemd-udevd urandom read with 8 bits of entropy
> available
> [    3.967295] usb 1-1: New USB device found, idVendor=148f, idProduct=7601
> [    3.967314] usb 1-1: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [    4.422344] bone_capemgr bone_capemgr: loader: failed to load slot-4
> BB-UART4:00A0 (prio 0)
> [    9.145277] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data
> mode. Opts: (null)
> =====================================================================
>
> at 4.422344 it appears there was a failure???

Loaded here:


debian@beaglebone:~$ dmesg | grep capemgr
[    0.000000] Kernel command line: console=ttyO0,115200n8
bone_capemgr.enable_partno=BB-UART4
root=UUID=20b61701-5d1b-44c4-baec-5d8d4c40dba2 ro rootfstype=ext4
rootwait fixrtc coherent_pool=1M quiet
[    3.220199] bone_capemgr bone_capemgr: Baseboard:
'A335BNLT,000C,2115BBBK0347'
[    3.220222] bone_capemgr bone_capemgr:
compatible-baseboard=ti,beaglebone-black - #slots=4
[    3.272316] bone_capemgr bone_capemgr: slot #0: No cape found
[    3.332301] bone_capemgr bone_capemgr: slot #1: No cape found
[    3.392300] bone_capemgr bone_capemgr: slot #2: No cape found
[    3.452299] bone_capemgr bone_capemgr: slot #3: No cape found
[    3.458340] bone_capemgr bone_capemgr: enabled_partno PARTNO
'BB-UART4' VER 'N/A' PR '0'
[    3.458351] bone_capemgr bone_capemgr: slot #4: override
[    3.458364] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[    3.458377] bone_capemgr bone_capemgr: slot #4: 'Override Board
Name,00A0,Override Manuf,BB-UART4'
[    3.458606] bone_capemgr bone_capemgr: initialized OK.
[    3.475352] bone_capemgr bone_capemgr: slot #4: dtbo
'BB-UART4-00A0.dtbo' loaded; overlay id #0

debian@beaglebone:~$ dmesg | grep serial
[    3.052993] omap_uart 44e09000.serial: no wakeirq for uart0
[    3.053158] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 154,
base_baud = 3000000) is a OMAP UART0
[    3.474825] omap_uart 481a8000.serial: no wakeirq for uart4
[    3.474983] 481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 180,
base_baud = 3000000) is a OMAP UART4

debian@beaglebone:~$ uname -r
4.1.0-bone9
debian@beaglebone:~$ cat /etc/dogtag
BeagleBoard.org Debian Image 2015-06-29

I only added the one line change to /boot/uEnv.txt...

Regards,

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

-- 
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