[PATCH 2/4] mmc: bcm2835: Add new driver for the internal SD controller.

[Ulf Hansson]

On 27 January 2017 at 12:36, Gerd Hoffmann <kraxel at redhat.com> wrote:
> From: Eric Anholt <eric at anholt.net>
>
> The 2835 has two SD controllers:  The Arasan SDHCI controller (supported
> by the iproc driver) and a custom SD controller.  This patch adds a
> driver for the custom SD controller.
>
> The custom controller runs faster, and driving the sdcard with the
> custom controller also allows to drive the rpi3 wifi with the iproc
> driver.
>

I don't understand this relationship. Is this somewhat configurable in runtime?

Is the WIFI module a removable SDIO card? So you can decide which
controller that is best suited to use? No?

Kind regards
Uffe