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Date:      Fri, 14 Feb 2025 17:44:04 -0800
From:      Mark Millard <marklmi@yahoo.com>
To:        Kim Shrier <kim@westryn.net>
Cc:        Russell Haley <russ.haley@gmail.com>, freebsd-arm@freebsd.org
Subject:   Re: i.MX8 Support?
Message-ID:  <EEF91DC7-27E6-4D5B-9B8A-F0A8084100DF@yahoo.com>
In-Reply-To: <B6AED154-00E4-41AA-9D38-58CFFDE4FBBD@westryn.net>
References:  <CABx9NuQxFsvgjx9_hfdgRq3hGBH_JiFL763pXtEjXm=H%2BSmS2g@mail.gmail.com> <B6AED154-00E4-41AA-9D38-58CFFDE4FBBD@westryn.net>

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On Feb 14, 2025, at 17:34, Kim Shrier <kim@westryn.net> wrote:

>> On Feb 14, 2025, at 5:22=E2=80=AFPM, Russell Haley =
<russ.haley@gmail.com> wrote:
>>=20
>> Hi,
>>=20
>> It's been a long time since I've lurked on this list. The Arm wiki =
says that aarch64 is tier 1 and "well supported" but I only see images =
for RPI, ROCK and PINE. Does this mean I need to build my own i.MX8 =
image or are NXP processors not supported in aarch64? I tried searching =
the mailing list archive on marc, but there were no search results for =
mx8 or imx8.=20
>>=20
>> I'm specifically hoping to support Phytec i.MX8 M Plus (quad core =
Cortex A-53). =
https://www.phytec.eu/en/produkte/system-on-modules/phycore-imx-8m-plus/
>=20
> I am running FreeBSD current on a NXP LS1088a with no issues.

Russell may want to know:

Which U-Boot? --and which Linux mainline *.dtb ?
Or is it working via UEFI/ACPI via, say, EDK2?

> (8 core A-53) Looking in the kernel source, I see:
>=20
> sys/arm64/freescale/imx/imx8mq_ccm.c
> sys/arm64/freescale/imx/imx8mq_ccm.h
>=20
> There are also a lot of mx8 files under =
sys/contrib/device-tree/src/arm64/freescale so I would think you should =
be able to get something working.
>=20
>>=20
>> Does FreeBSD support NPUs? (No, I don't know what I mean...)
>=20
> NPU - neural processing unit.  Taking a quick look through the source, =
it appears that there is no support for this.







=3D=3D=3D
Mark Millard
marklmi at yahoo.com




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