Thanks!!

While figuring out where/how to drop this defconfig in the TI SDK's 
directory structure, and have it override existing kernel configuration 
settings, I'm thinking of trying something in "parallel."


Since the stock BeagleBoard-X15 SD card image booted Debian on my 57XX EVM 
(but with some pru/remoteproc errors), I'm wondering if I can still use the 
572X EVM with the BeagleBoard-X15 SDK image (kernel and all), to move 
forward with installing Mono/.Net with RS232/serial port (over USB) + 
Ethernet access.    I don't know whether the USB ports on the EVM are 2.0 
or 3.0, but if they're < 3.0, then they should work, right?

Thanks again!!

Jeff

On Tuesday, March 7, 2017 at 6:48:37 PM UTC-6, RobertCNelson wrote:

> On Tue, Mar 7, 2017 at 5:52 PM, Jeff Andich <[email protected] 
> <javascript:>> wrote: 
> > Hi all, 
> > 
> > 
> > 
> > First and foremost, is this the correct forum for newbies to ask follow 
> up 
> > questions? 
> > 
> > 
> > 
> > Also, please let me know if I haven't done enough "chewing" on the 
> problem 
> > before posting up... 
> > 
> > 
> > I followed the procedure below (if I understood everything correctly), 
> but 
> > ended up getting a kernel panic (please see below) with the SD Card 
> boot. 
> > 
> > 
> > The lib modules, dtb files, and kernel image from the TI SDK (version 
> > am57xx-evm-03.02.00.05) were copied from the TI SDK folders 
> > (..../targetNFS).  Please note, I have net booted my 57xxEVM several 
> times, 
> > and then replaced the /lib files on the SD Card, X15 image.  I'm not 
> sure if 
> > I need a pristine copy... 
> > 
> > 
> > Also I tried separately booting off of the zImage and vmlinux images 
> from 
> > ti-sdk.... both resulting in a K-panic. 
> > 
> > 
> > Also, I tried booting the stock SD card image of the beagleboard-x15 on 
> my 
> > 57xxEVM to a login prompt, and login, but with some issues (pru-related 
> > errors during kernel boot and fsck error).  Incidentally, it loaded the 
> same 
> > dtb as gets loaded by the 57xxevm (without needing to specify this in 
> > uEnv.txt!??). 
> > 
> > 
> > 
> > 
> > 
> > 
> > ********************************************************************* 
> > 
> > 
> > 
> > U-Boot 2016.05-00560-gbe6a102 (Nov 01 2016 - 11:19:49 -0500), Build: 
> > jenkins-github_Bootloader-Builder-478 
> > 
> > 
> > 
> > CPU  : DRA752-GP ES2.0 
> > 
> > Board: AM572x EVM REV A.3A 
> > 
> > I2C:   ready 
> > 
> > DRAM:  2 GiB 
> > 
> > MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1 
> > 
> > 
> > 
> > ** Unable to use mmc 0:1 for loading the env ** 
> > 
> > Using default environment 
> > 
> > 
> > 
> > SCSI:  SATA link 0 timeout. 
> > 
> > AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode 
> > 
> > flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst 
> > 
> > scanning bus for devices... 
> > 
> > Found 0 device(s). 
> > 
> > Net:   <ethaddr> not set. Validating first E-fuse MAC 
> > 
> > cpsw 
> > 
> > Press SPACE to abort autoboot in 2 seconds 
> > 
> > usb_boot is currently disabled 
> > 
> > scsi_boot is currently disabled 
> > 
> > switch to partitions #0, OK 
> > 
> > mmc0 is current device 
> > 
> > Scanning mmc device 0 
> > 
> > Checking for: /uEnv.txt ... 
> > 
> > Checking for: /boot/uEnv.txt ... 
> > 
> > 461 bytes read in 41 ms (10.7 KiB/s) 
> > 
> > Loaded environment from /boot/uEnv.txt 
> > 
> > debug: [dtb=am57xx-evm-reva3.dtb] ... 
> > 
> > Checking if uname_r is set in /boot/uEnv.txt ... 
> > 
> > debug: [uname_r=4.4.32-gadde2ca9f8] ... 
> > 
> > loading /boot/vmlinuz-4.4.32-gadde2ca9f8 ... 
> > 
> > 3597872 bytes read in 224 ms (15.3 MiB/s) 
> > 
> > loading /boot/dtbs/4.4.32-gadde2ca9f8/am57xx-evm-reva3.dtb ... 
> > 
> > 102718 bytes read in 64 ms (1.5 MiB/s) 
> > 
> > debug: [console=ttyO2,115200n8 root=/dev/mmcblk0p1 ro rootfstype=ext4 
> > rootwait coherent_pool=1M quiet] ... 
> > 
> > debug: [bootz 0x82000000 - 0x88000000] ... 
> > 
> > Kernel image @ 0x82000000 [ 0x000000 - 0x36e630 ] 
> > 
> > ## Flattened Device Tree blob at 88000000 
> > 
> >    Booting using the fdt blob at 0x88000000 
> > 
> >    Loading Device Tree to 8ffe3000, end 8ffff13d ... OK 
> > 
> > 
> > 
> > Starting kernel ... 
> > 
> > 
> > 
> > [    0.000797] WARNING: Your 'console=ttyO2' has been replaced by 
> 'ttyS2' 
> > 
> > [    0.000803] This ensures that you still see kernel messages. Please 
> > 
> > [    0.000809] update your kernel commandline. 
> > 
> > [    0.001766] /cpus/cpu@0 missing clock-frequency property 
> > 
> > [    0.001782] /cpus/cpu@1 missing clock-frequency property 
> > 
> > [    0.634006] dra7-pcie 51000000.pcie_rc: link is not up 
> > 
> > [    0.858969] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr25 mode 
> > 
> > [    0.865354] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr12 mode 
> > 
> > [    0.985409] omap_voltage_late_init: Voltage driver support not added 
> > 
> > [    1.060533] omap_hsmmc 4809c000.mmc: card busy 
> > 
> > [    1.101972] mmc0: error -110 whilst initialising SD card 
> > 
> > [    1.219034] Kernel panic - not syncing: VFS: Unable to mount root fs 
> on 
> > unknown-block(179,1) 
>
> I'd start here: 
>
>
> https://github.com/RobertCNelson/ti-linux-kernel-dev/blob/ti-linux-4.4.y/patches/defconfig#L5558-L5564
>  
>
> ps, that ti's sdk doesn't use systemd (the next version with v4.9.x 
> will), so double check the systemd required config's... 
>
> Regards, 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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