linux-kernel - Re: [PATCH 0/3] dts: arm64: sunxi: add initial support for t95 tv box

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Message-ID: <55eda2c6-1bca-463d-a908-1887543a47a5@gmail.com>
Date: Thu, 14 Mar 2024 01:19:28 +0100
From: Kamil Kasperski <ressetkk@...il.com>
To: Jernej Škrabec <jernej.skrabec@...il.com>,
 Andre Przywara <andre.przywara@....com>
Cc: wens@...e.org, samuel@...lland.org, linux-arm-kernel@...ts.infradead.org,
 linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] dts: arm64: sunxi: add initial support for t95 tv box

Hi Jernej, Andre!

Thanks for the reply. My board has a name "H616-T95MAX-AXP313A-v3.0".

I believe these boards are two different revisions and the one with 
AXP313A is a newer one, besides incorrectly label as v3.0. Sharing 
common configuration between boxes is also a good idea but for this 
specific configuration I would be cautious. From my experience with this 
board the default configuration for X96 Mate is not working at all. I 
suspect because of the PMIC and DRAM differences.

Memory installed in X96 Mate is DDR3L and in mine T95 it's DDR3, hynix 
H5TQ2G43BFR, that requires 1.5V to operate.

The rest of configuration for both boards, like HDMI, MMC, EPHY and 
audio codec seems to be the same across almost all H616-based boxes that 
I've researched.


Moreover please let me update the patches and send v2 that aligns with 
mainline branch. I've incorrectly assumed to use sunxi fork instead of 
master. Sorry!

W dniu 13.03.2024 o 19:00, Jernej Škrabec pisze:
> Dne sreda, 13. marec 2024 ob 18:38:08 CET je Andre Przywara napisal(a):
>> On Wed, 13 Mar 2024 18:25:14 +0100
>> Jernej Škrabec <jernej.skrabec@...il.com> wrote:
>>
>>> Hi Kamil!
>>>
>>> Dne ponedeljek, 11. marec 2024 ob 18:47:47 CET je Kamil Kasperski napisal(a):
>>>> T95 is a most commonly known for being a box with a pre-installed malware.
>>>> It uses Allwinner H616 and comes with eMMC and DDR3 memory.
>>>> This device comes with two versions - one with AXP305 PMIC and another with AXP313 PMIC.
>>> I have this board and it always felt like a clone of X96 Mate, which is
>>> already supported in kernel, except for broken sd card detection. Would it
>>> make sense to unify those two boards and just overwrite or update parts here
>>> that are not the same?
>> I think the box you have is an older one, with the AXP305? IIUC, this is
>> about a newer revision with the AXP313. There are quite some differences
>> between the two PMICs, though it might still make sense to share the DTs,
>> see the OrangePi Zero[23].
> Right, mine is with AXP305. It has "T95MAX v4.0" printed on PCB.
>
> Kamil, does your board also have "MAX" mentioned somewhere?
>
> Best regards,
> Jernej
>
>> Cheers,
>> Andre
>>
>>>> Kamil Kasperski (3):
>>>>    dt-bindings: vendor-prefixes: sunxi: add T95 to vendor-prefixes
>>>>    dt-bindings: arm: sunxi: add t95 compatible string to list of known
>>>>      boards
>>>>    dts: arm64: sunxi: add initial support for T95 AXP313 tv box
>>>>
>>>>   .../devicetree/bindings/arm/sunxi.yaml        |   5 +
>>>>   .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
>>>>   arch/arm64/boot/dts/allwinner/Makefile        |   1 +
>>>>   .../dts/allwinner/sun50i-h616-t95-axp313.dts  | 138 ++++++++++++++++++
>>>>   4 files changed, 146 insertions(+)
>>>>   create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616-t95-axp313.dts
>>>>
>>>>    
>>>
>>>
>>>
>>>
>>
>
>
>