Re: u-boot plans for Fedora 22 ?

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Hi,

On 03/21/2015 02:49 PM, Dennis Gilmore wrote:
On Saturday, March 21, 2015 03:40:20 PM Hans de Goede wrote:
Hi,

On 21-03-15 15:21, Hans de Goede wrote:
Hi,

On 06-03-15 23:50, Peter Robinson wrote:
I assume that we will be rebasing u-boot to the just released v2015.01
for F-22? But I was wondering if there is any chance we can jump to
v2015.04 ? The reason I'm asking is that things are progressing
quite rapidly on the u-boot side, at least with Allwinner SoC support,
I've just send a pull-req for v2015.04 with the following highlights:

1) Improved sun6i (A31) support, including support for the A31s variant
and

     automatic assignment of a SoC serial based MAC address for ethernet

2) Full sun8i (A23) support including DRAM controller init and SPL, so
now

     people can boot these boards using a full FOSS solution

3) Many improvement to the graphical console support, automatic
selection

     of the native mode for HDMI/DVI monitors via DDC + EDID, LCD panel

support,

     VGA output support

4) Preparation work for OTG controller support, together with 3) this
allows using

     u-boot on tablets effortlessly. The rest of the OTG support is going

upstream

     through the usb tree

And if possible I would like to see this end up in Fedora 22 :)
An initial build of 2015.04rc3 will be in rawhide tomorrow, so please
test, I've enabled a few extra new devices and I'll be reviewing the
rest of the new devices over the next week or so.

Please test, once it's settled down and we're fairly certain all the
usual suspects haven't regressed we'll move it into F-22 before beta
starts to get locked down.
I noticed that -rc4 has also been build, so I've given that a test-run
on sunxi instead:
http://koji.fedoraproject.org/koji/buildinfo?buildID=622061

  From a sunxi pov this build looks good.
I have to take this back, it seems that this build is appending:

" console=ttyS0,115200"

To the kernel cmdline, I've just double-checked and this is not upstream
behavior, is this being done by Fedora specific patches ?

This breaks kernel output and systemd status messages output on
tty0 / the hdmi output, resulting in a blackscreen until gdm
starts.

As discussed a while back, the proper way to do is set
stdout-path in the devicetree to the serial console, then the
kernel will automatically make it a second console, next to tty0
and output messages on both, and systemd will output messages
and spawn gettys on both too.

Upstream u-boot is already setting stdout-path for all sunxi
devices, so from a sunxi pov the appending of " console=ttyS0,115200"
is a regression. If this is done for some other boards, it would
be better to either patch those boards dts files to set stdout-path,
or u-boot to set stdout-path rather then appending " console=ttyS0,115200"
and breaking video output. If you can tell me which specific boards
need work here I can whip up a patch (for others to test).
>
I suspect that no other boards are doing so, I was not aware that you had
gotten that upstream yet.

For sunxi I've added a patch to u-boot which patches it into the dts as
u-boot loads the dts, u-boot already has infrastructure / code for
this, so it is just setting a single #define in include/configs/<board.h>,
see:

http://git.denx.de/?p=u-boot.git;a=commitdiff;h=f3133962f469a8b6b9ba237ba670f0ca7c88a02e

And there are also plans for sunxi to just outright add it to the dts files
as shipped with the kernel, so that it will also work with older u-boot
versions.

> we will need to drop the patch that automatically
adds the console from u-boot. every other system will need to be looked at.

Or wrap it in in #ifndef CONFIG_ARCH_SUNXI as an interim workaround,
TBH I was a bit surprised that we're carrying such a patch as what
to exactly put on the cmdline differs per board (the ttyS0 name is
not the same everywhere), or are you using the 'console' env
variable for this ?

Anyways at a minimum please wrap the patch automatically adding the
console= argument in #ifndef CONFIG_ARCH_SUNXI

Note that using stdout-path on devices which have hdmi (or similar video)
out is better because it gives a kernel console on both the hdmi and
the serial port, either way let me know if you need any help with this.

Regards,

Hans
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