Hi All,
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 :)
Regards,
Hans
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:
Given 2015.01 is already built for F-22 I think that would be a safe bet ;-). 2015.04 is a possibility and not certain yet, will be much easier to tell once that make it to rc1, I've been watching the mailing list and we're aware of things being proposed. It depends on how much other fall out there is between now and release candidate stage.
Peter
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:
- Improved sun6i (A31) support, including support for the A31s variant and automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so now people can boot these boards using a full FOSS solution
- 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.
Peter
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:
- Improved sun6i (A31) support, including support for the A31s variant and automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so now people can boot these boards using a full FOSS solution
- 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.
Talking about enabling extra boards, from a sunxi pov I would like to see the following enabled:
Common / widely available dev-boards:
Linksprite_pcDuino3_Nano Linksprite_pcDuino3 Linksprite_pcDuino Marsboard_A10 Orangepi (*) Orangepi_mini (*)
Common / widely used top set boxes: CSQ_CS908 Mele_I7 Mele_M5 Mele_M9 ba10_tv_box i12-tvbox
Common / widely used "hdmi sticks": mk802_a10s mk802 mk802ii
This leaves some special dev boards (official allwinner devkits mostly), some uncommon top set boxes / hdmi sticks, and a bunch of tablets. I would like to eventually enable tablets, but atm without otg support being upstream they are not really usable yet.
Once we have the tablets usable, we should probably just do a grep in configs/_defconfig for SUNXI and just enable all of them to avoid having to manually keep a list. I'm fine with switching to such a grep right away.
Regards,
Hans
*) The Orangepi's do not have a dts upstream yet, but we do need to enable them eventually, might just as well do so now.
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:
- 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
It's not headed to F-22 just yet as there's an issues with distro boot for a few devices (likely I've screwed up the patch rebase for i.MX6/TI devices. Once that's confirmed as fixed I'll pull it back for F-22 too.
From a sunxi pov this build looks good.
Talking about enabling extra boards, from a sunxi pov I would like to see the following enabled:
Most of those were on my todo list :)
Common / widely available dev-boards:
Linksprite_pcDuino3_Nano Linksprite_pcDuino3 Linksprite_pcDuino Marsboard_A10 Orangepi (*) Orangepi_mini (*)
Common / widely used top set boxes: CSQ_CS908 Mele_I7 Mele_M5 Mele_M9 ba10_tv_box i12-tvbox
Common / widely used "hdmi sticks": mk802_a10s mk802 mk802ii
This leaves some special dev boards (official allwinner devkits mostly), some uncommon top set boxes / hdmi sticks, and a bunch of tablets. I would like to eventually enable tablets, but atm without otg support being upstream they are not really usable yet.
Once we have the tablets usable, we should probably just do a grep in configs/_defconfig for SUNXI and just enable all of them to avoid having to manually keep a list. I'm fine with switching to such a grep right away.
Got a patch for me to look at?
Regards,
Hans
*) The Orangepi's do not have a dts upstream yet, but we do need to enable them eventually, might just as well do so now.
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:
- Improved sun6i (A31) support, including support for the A31s variant and automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so now people can boot these boards using a full FOSS solution
- 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).
Regards,
Hans
Hi,
On 21-03-15 15:32, 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:
- 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
It's not headed to F-22 just yet as there's an issues with distro boot for a few devices (likely I've screwed up the patch rebase for i.MX6/TI devices. Once that's confirmed as fixed I'll pull it back for F-22 too.
From a sunxi pov this build looks good.
Talking about enabling extra boards, from a sunxi pov I would like to see the following enabled:
Most of those were on my todo list :)
Common / widely available dev-boards:
Linksprite_pcDuino3_Nano Linksprite_pcDuino3 Linksprite_pcDuino Marsboard_A10 Orangepi (*) Orangepi_mini (*)
Common / widely used top set boxes: CSQ_CS908 Mele_I7 Mele_M5 Mele_M9 ba10_tv_box i12-tvbox
Common / widely used "hdmi sticks": mk802_a10s mk802 mk802ii
This leaves some special dev boards (official allwinner devkits mostly), some uncommon top set boxes / hdmi sticks, and a bunch of tablets. I would like to eventually enable tablets, but atm without otg support being upstream they are not really usable yet.
Once we have the tablets usable, we should probably just do a grep in configs/_defconfig for SUNXI and just enable all of them to avoid having to manually keep a list. I'm fine with switching to such a grep right away.
Got a patch for me to look at?
Nope I've not looked at the Fedora u-boot specfile at all, but generating the list is simple, this command will output all the sunxi defconfig files:
grep -rl ARCH_SUNXI configs
Regards,
Hans
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:
- Improved sun6i (A31) support, including support for the A31s variant
and
automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so
now
people can boot these boards using a full FOSS solution
- 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
- 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. we will need to drop the patch that automatically adds the console from u-boot. every other system will need to be looked at.
Dennis
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:
- Improved sun6i (A31) support, including support for the A31s variant
and
automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so
now
people can boot these boards using a full FOSS solution
- 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
- 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. we will need to drop the patch that automatically adds the console from u-boot. every other system will need to be looked at.
This sounds like the behaviour I reported a while back on my Cubies. That is the HDMI blanks out and it is some time before anything appears. All messages only appear on the serial console.
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:
- Improved sun6i (A31) support, including support for the A31s variant
and
automatic assignment of a SoC serial based MAC address for ethernet
- Full sun8i (A23) support including DRAM controller init and SPL, so
now
people can boot these boards using a full FOSS solution
- 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
- 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=f3133962f469a8b6b9ba237ba670...
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
Hi,
<snip>
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.
This in my testing is not working unless i add console=ttySO,115200 to the bootargs I get nothing out at all on the serial port, though in u-boot it had stdin as serial and stdout as vga. what are all the possible options and how should things just work? the current patch is not a regression for Fedora. I want to make things just work for all.
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).
We should patch all boards to be the same. but it needs to work.
Regards
Dennis
Regards,
Hans _______________________________________________ arm mailing list arm@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/arm
[...]
Common / widely available dev-boards:
Linksprite_pcDuino3_Nano Linksprite_pcDuino3 Linksprite_pcDuino Marsboard_A10 Orangepi (*) Orangepi_mini (*)
[...]
Hans
*) The Orangepi's do not have a dts upstream yet, but we do need to enable them eventually, might just as well do so now.
Afaik the orange pi dts is similar to the banana pi one (that is: I have always used the banana pi ones on orange pi for my testing and never noticed an issue).
Does this version also already support H3-based devices? (I have an orange pi pro with a H3; can test if needed)
Frans
Hi,
On 05/01/2015 03:56 PM, Dennis Gilmore wrote:
Hi,
<snip>
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.
This in my testing is not working unless i add console=ttySO,115200 to the bootargs I get nothing out at all on the serial port, though in u-boot it had stdin as serial and stdout as vga. what are all the possible options and how should things just work? the current patch is not a regression for Fedora. I want to make things just work for all.
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).
We should patch all boards to be the same. but it needs to work.
The sunxi boards have a line like this in their upstream include/configs/board.h file:
#define OF_STDOUT_PATH "/soc/serial@07000000:115200"
With the correct version of that present and using a 4.0 kernel you should get output on both the serial console and a vga/hdmi out without needing to specify any console= argument.
Regards,
Hans