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Build kernel from source and boot to Ubuntu using L4T (Linux for Tegra) rootfs

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By yahoo2016, Senior Member on 19th December 2015, 08:47 PM
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14th February 2018, 03:06 PM |#631  
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Quote:
Originally Posted by chtulu

Does not matter, I found out that, as for pinctrl-tegra.h, rcv_sel_bit and e_io_hv_bit set the same bit.

No, they can not be changed in the device-tree, I was hoping that you knew about the UCM1 and UCM2 tables for GPU.

Haven't looked into it, sorry. I think you're probably already poking around in these, but if not, look at "speedo-tegra210.c" and "tegra210-dvfs.c" to get started.
 
 
16th February 2018, 05:47 PM |#632  
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Originally Posted by deerish

Haven't looked into it, sorry. I think you're probably already poking around in these, but if not, look at "speedo-tegra210.c" and "tegra210-dvfs.c" to get started.

Hi, I found in dmesg this line:

pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring

some errors in device tree's pcie-controller section perhaps?

and also: xhci-tegra 70090000.xusb: can't get usb3-1 phy (-517)
5th April 2018, 02:38 AM |#633  
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I understand this thread is old and must be pretty much obsolete, but how do you boot from 33rd or 34th partition?
I was able to add partitions with gdisk and hex edit, then cp rootfs just like on the sd card, but the booting crashes.
Are there any extra steps need to be done? Could anyone guide me on this?
8th April 2018, 01:24 PM |#634  
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Originally Posted by nathan6

I understand this thread is old and must be pretty much obsolete, but how do you boot from 33rd or 34th partition?
I was able to add partitions with gdisk and hex edit, then cp rootfs just like on the sd card, but the booting crashes.
Are there any extra steps need to be done? Could anyone guide me on this?

Hello there,

Actually I would like to know all the steps to have l4t running on my 2017 shield tv too, if anyone have all the steps that needs to be done, I'm a little confused with all the things provided there to actually making a bootable l4t distro, I saw some are on 24.1, and some can boot on 28.1 kernel, but I'm not able to making it bootable.

Thanks a lot for reading/answering
8th April 2018, 10:11 PM |#635  
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Quote:
Originally Posted by Diliz

Hello there,

Actually I would like to know all the steps to have l4t running on my 2017 shield tv too, if anyone have all the steps that needs to be done, I'm a little confused with all the things provided there to actually making a bootable l4t distro, I saw some are on 24.1, and some can boot on 28.1 kernel, but I'm not able to making it bootable.

Thanks a lot for reading/answering

I made it bootable on L4T 24.2.1 with micro sd card on Pro (500GB) version, but not 2017 version.

I read pretty much every reply on this thread, several other threads and other websites trying to figure out how to do this. I made a md doc in my github (github.com/na6an/ShieldTV) pulling all relevant info in one place. You can also check this doc out (gravity.phy.umassd.edu/ShieldDIY.pdf) - which is basically the same procedure as this post, but more step by step style. (sorry, cannot post links yet)

TRY NOT TO FLASH NEW DTB IF YOU DECIDED TO STICK ON 2017 MODEL.

Like I briefly mentioned in my github, I actually tried on two 2017 versions before tried on Pro version but hard bricked twice by flashing wrong dtb (tried several dtb's because method posted here didn't seem to work on my 2017), had to returned them both.

I failed booting from usb by following this post with "sda1.img"
One thing I noticed that mine works on "mmcblk0p1.img" with external micro sd card, not "mmcblk1p1.img" although this post says it's for internal eMMC. So, my guess is the port name could be different. 2017 version doesn't have micro sd card slot, so you might want to try with sd card reader usb.
13th April 2018, 11:18 AM |#636  
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Quote:
Originally Posted by deerish

Haven't looked into it, sorry. I think you're probably already poking around in these, but if not, look at "speedo-tegra210.c" and "tegra210-dvfs.c" to get started.

Hi, Do you have the device tree for L4T 28.2?
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