[RFT PATCH v3 27/27] arm64: apple: Add initial Apple Mac mini (M1, 2020) devicetree
Hector Martin
marcan at marcan.st
Fri Mar 5 11:14:10 GMT 2021
On 05/03/2021 20.03, Krzysztof Kozlowski wrote:
>> + memory at 800000000 {
>> + device_type = "memory";
>> + reg = <0x8 0 0x2 0>; /* To be filled by loader */
>
> Shouldn't this be 0x800000000 with ~0x80000000 length (or whatever is
> more common)? Or did I miss some ranges?
The base model has 8GB of RAM, and RAM always starts at 0x800000000,
hence that reg property.
It's not actually useful to try to boot Linux like this, because it'll
step all over device carveouts on both ends and break, but since those
are potentially dynamic it doesn't really make sense to use a more
specific example for the dts.
E.g. on my system, with my current firmware version, this ends up
getting patched to:
reg = <0x8 0x0134c000 0x1 0xda294000>
Thanks,
--
Hector Martin (marcan at marcan.st)
Public Key: https://mrcn.st/pub
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