[talk] Fwd: Meet to hack on new Intel Atom SoC board

Sujit K M kmsujit at gmail.com
Sat Feb 27 01:24:22 EST 2016

On Sat, Feb 27, 2016 at 7:22 AM, Mark Saad <mark.saad at ymail.com> wrote:
> Some further up talk .

I found it difficult to understand what is being tried/or an attempt
at porting is being
done. I mean just configure the kernel according to specs and trying
would be better.
Or I am missing something?

> ---
> Mark Saad | mark.saad at ymail.com
> Begin forwarded message:
> From: "Lundberg, Johannes" <johannes at brilliantservice.co.jp>
> Date: February 26, 2016 at 6:51:47 PM EST
> To: freebsd-hackers at freebsd.org, FreeBSD Current
> <freebsd-current at freebsd.org>
> Subject: Meet to hack on new Intel Atom SoC board
> Hi
> My three boards from UP has arrived. At last, an Intel based small sized
> dev board!
> http://up-shop.org/
> This is an early developer version board with the new super low power 14nm
> x5-Z8300 CPU (CherryTrail) with 16GB eMMC and 1GB RAM (a bit different from
> the specs of the final version).
> Any kernel hackers in the Bay Area (south of San Francisco) who are
> interested to get together next week and get FreeBSD running on it? (Pizza
> on me :)
> I can also lend a couple of boards to anyone who wants to continue hacking
> after the meeting.
> What I've done so far
> - Running from USB memstick. Need to disable uart.1 or boot halts.
> - Started working on sdhci_acpi driver
> https://github.com/yohanesu75/freebsd/blob/sdhci-acpi-mmccampatch/sys/dev/sdhci/sdhci_acpi.c
> which requires this patch
> https://reviews.freebsd.org/D4761 (mmc on cam)
> and is a work in progress and I'm kind of stuck because I don't know how to
> do the IO port stuff so that the card can be detected..
> (There is a BIOS option to run the SDHCI controller on PCI bus but it fails
> to detect the eMMC memory. I think Intel (SD?|GP?)IO ports are required for
> this which will be added support for in the D4761 patch.)
> Working (out of the box - haven't tested everything)
> - HDMI output
> - Realtek GB Ethernet
> - USB 2.0
> Top priority would be to get eMMC storage working (on top of cam/mmc).
> Other goals:
> - Working GPIO
> - Writing device drivers for SoC components like the ISP and on-board
> chips.
> - Hardware graphics rendering
> - Power consumption optimizations
> Have a nice weekend!
> Johannes
> --
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