[yocto] [meta-raspberrypi] morty release ?

[Khem Raj]

> On Dec 5, 2016, at 1:46 PM, Mirza Krak <mirza.krak at gmail.com> wrote:
> 
> 2016-12-05 19:37 GMT+01:00 Khem Raj <raj.khem at gmail.com>:
>> On Mon, Dec 5, 2016 at 7:26 AM, Mirza Krak <mirza.krak at gmail.com> wrote:
>>> Hi.
>>> 
>>> I have some questions and remarks and hopefully someone here can answer them.
>>> 
>>> The meta-raspberrpi layer is missing a morty release? Any time frame
>>> of when this will be added?
>> 
>> We use master as long as possible, when we have a change that makes master
>> incompatible with prior releases we branch out for the prior releases
>> at that point.
> 
> Thank you for the clarification.
> 
>> 
>>> 
>>> There is currently a issue when using U-boot due to some updates in
>>> RPi boot firmware. See [1] and [2]. Which should be noted/resolved
>>> before a morty release?
>>> 
>>> To provide some more information about above mentioned problem. If you
>>> use the current firmware files (20161030 in meta-raspberrypi) together
>>> with U-boot (2016.03) you lose the console on U-boot and on Linux
>>> kernel. This is due to the fact that "newer" firmware sets a default
>>> uart clock to 48 MHz, but U-boot has a hard-coded value of 3 MHz, and
>>> since we yet do not support to "forward" the patched DTB provided by
>>> the firmware from U-boot to Linux we also break console on Linux.
>>> 
>>> The "default" values has been updated in Linux, see [2]. But if you
>>> use that updated Linux kernel there is a mismatch between u-boot and
>>> Linux. Should be noted that U-boot 2016.11 does not have this problem
>>> since it does not try to initialize the UART port at all and only
>>> relies on firmware to set it up correctly (see [3]).
>> 
>> We should drop 2016.03 and support 2016.11 for keeping it simple.
> 
> Should also update Linux which contains the updated default value
> (since we do not yet support pass-trough of firmware DTB, I know I
> have seen some patches on the mailing list but nothing in upstream
> yet).
> 
> But U-boot is in meta-openembedded, are you suggesting that we update
> it in meta-raspberry? Or updating it in meta-openembedded?

Yeah I realized that u-boot is coming from OE-Core, it is possible to carry
patches in meta-raspberrypi to fix the version for morty in bbappends. May
be we need to branch out morty after we have fixed this if we want to
drop this version of u-boot beyond morty.

> 
> Best Regards
> Mirza