Re: [PATCH 11/15] arm64: dts: nuvoton: Add initial ma35d1 device tree

[Jacky Huang <ychuang570808@gmail.com>]

Hi Lee,


Thanks for your attentions.


On 2023/3/17 上午 12:44, Lee Jones wrote:
> On Thu, 16 Mar 2023, Arnd Bergmann wrote:
>
>> On Wed, Mar 15, 2023, at 08:28, Jacky Huang wrote:
>>> +	mem: memory@80000000 {
>>> +		device_type = "memory";
>>> +		reg = <0x00000000 0x80000000 0 0x20000000>; /* 512M DRAM */
>>> +	};
>>> +};
>> In most machines, the memory size is detected by the boot loader
>> and filled in the dtb in memory before starting the kernel, so
>> you should not need two separate files here for the two common
>> memory configurations.
>>
>> Since the machine is called 'som', I would assume that this is a
>> module that is integrated on another board, so more commonly one
>> would have a dtsi file for the som in addition to the one for the
>> soc, and have all the components of the module listed in this
>> file, while the dts file that includes the som.dtsi lists the
>> devices on the carrier board and enables the on-chip devices
>> that are connected to the outside.
> It's using syscon and simple-mfd by the looks of it.
>
> --
> Lee Jones [李琼斯]


We just copy from what other chips's dts have done.

This seems be defined in Documentation\devicetree\bindings\numa.txt.


Best regards,

Jacky Huang