Re: [PATCH 2/2] ARM: dts: add TOPEET itop elite based board

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On Tue, Aug 23, 2016 at 1:36 PM, ayaka <ayaka@xxxxxxxxxxx> wrote:
>
> On 08/24/2016 02:14 AM, Rob Herring wrote:
>>
>> On Mon, Aug 22, 2016 at 10:18:09PM +0800, Randy Li wrote:
>>>
>>> The TOPEET itop exynos 4412 have three versions base board. The
>>> Elite version is the cheap one without too much peripheral devices
>>> on it.
>>>
>>> Currently supported are serial console, wired networking(USB),
>>> USB OTG in peripheral mode, USB host, SD storage, GPIO buttons,
>>> PWM beeper, ADC and LEDs.

[...]

>>> +/dts-v1/;
>>> +#include "exynos4412-itop-scp-core.dtsi"
>>> +
>>> +/ {
>>> +       model = "TOPEET iTop 4412 Elite board based on Exynos4412";
>>> +       compatible = "topeet,itop4412-elite", "samsung,exynos4412",
>>> "samsung,exynos4";
>>> +
>>> +       chosen {
>>> +               bootargs ="console=ttySAC2,115200";
>>
>> Don't need console set with...
>
> But could I set something like rootfs here ?
> As the bootloader(old u-boot) offered by the vendor is brick, it is
> impossible to save any something in u-boot.

Yes, but then that is a user decision and shouldn't really be there
either. In other words, ether the bootloader should set bootargs
(which even a vendor u-boot should be able to do either directly or
the zImage can take it from the ATAGS) or a user can edit the dts and
carry that change.

However, there are probably plenty of examples in the kernel that
counter what I just said.

Rob
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