[PATCH V2 10/15] ARM: dts: imx6q-dhcom: Set minimum memory size of all DHCOM i.MX6 variants

[Marek Vasut]

On 6/25/21 6:15 PM, Christoph Niedermaier wrote:
> From: Marek Vasut [mailto:marex at denx.de]
> Sent: Tuesday, June 22, 2021 1:27 PM
> 
> Hello Marek,
> 
>> On 6/22/21 11:59 AM, Christoph Niedermaier wrote:
>> [...]
>>
>>> diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
>> b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
>>> index 9fd48ab9b3d0..a361e161fba1 100644
>>> --- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
>>> +++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
>>> @@ -30,7 +30,7 @@
>>>
>>>        memory at 10000000 {
>>>                device_type = "memory";
>>> -             reg = <0x10000000 0x40000000>;
>>> +             reg = <0x10000000 0x20000000>;
>>
>> So this is not set to 0 because some old bootloader version might not
>> correctly patch the memory size ?
> 
> I am a little bit confused, because that is what you told me,

Well yes, it was a bit of a leading question to clarify why it is that 
way and not 0  -- to make sure some of the broken old bootloaders which 
don't configure the DRAM size correctly in DT don't end up failing to 
boot the mainline Linux either.