S805/S812 Device Tree upstreaming

Martin Blumenstingl martin.blumenstingl at googlemail.com
Thu May 25 08:56:07 PDT 2017

Hi Oleg,

On Mon, May 22, 2017 at 2:12 PM, Oleg <balbes-150 at yandex.ru> wrote:
> Hi Martin
> 1. Updated the source code to the latest version of meson-mx
> integration-4.12-20170520
> 2. Collected test image with the new kernel. 2. Checked both settings in dtb
> (HIGH and LOW).
> While the result is the same.
> 3. The output from the console log and with the command "md".
> 4 Contents of directories emmc sd sdio (from the working image Armbian with
> kernel 3.14 ,
> which features Wi-Fi and wired network with USB and HDMI)
> https://yadi.sk/d/KvSjVEK-3JQF7c .
regarding USB: I don't see a reason why it's reporting this error :(
Kevin's Odroid-C2 board (used by kernelci) reports the same error [0]
- I cannot reproduce this with any of my devices unfortunately (so I'm
a bit lost here)

regarding wifi:
I would like to see this fixed because it would be great to have
someone with Broadcom wifi (to confirm that the MMC driver works
I'm a bit puzzled though why it doesn't seem to find your SDIO wifi,
even though it's at slot 0 (confirmed by looking at your sdio.tar.gz).
maybe you can enable the debug logs in drivers/mmc/core.c (just add
#define DEBUG at the beginning of the file and prepare for a HUGE

I also compared your pinmux register dump to see if there's anything
interesting regarding ethernet.
all eth_* related bits are set just like the kernel would do (REG6
bits 5-8 and bits 10-14)
a similar error was reported for another platform [1]
however, I must also say that I am sure that I need to switch from the
"meson6-dwmac" driver to "meson8b-dwmac" - but that will require
additional work in the "meson8b-dwmac" driver.

> Is it possible to transfer the wired network settings of dtb data from s905
> (p200)
>  in the dtb settings for MXIII-Plus or are they not compatible ?
with my current .dts they are not compatible - the goal is to make
them compatible (more work is required for that though)


[0] https://storage.kernelci.org/mainline/master/v4.12-rc1-268-g6fe1de43c5f6/arm64/defconfig+CONFIG_LKDTM=y/lab-baylibre-seattle/boot-meson-gxbb-odroidc2.html
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-March/492508.html

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