Re: [PATCH 0/4] bcm2835 SDHOST controller

From: Martin Sperl
Date: Mon Feb 29 2016 - 05:09:04 EST



> On 27.02.2016, at 00:05, Eric Anholt <eric@xxxxxxxxxx> wrote:
>
> Here's a series to enable the SDHOST controller. It gives us better
> performance than our old sdhci-bcm2835.c. The downstream Raspberry Pi
> kernel appears to be using this controller by default at this point.
>
> I've tried to do some testing on it (mounting filesystem,
> reading/writing files, speed tests), but I'm not sure what a good
> testing regimen for storage drivers would be.
>
> Eric Anholt (4):
> dt-bindings: Add binding for brcm,bcm2835-sdhost.
> mmc: bcm2835-sdhost: Add new driver for the internal SD controller.
> ARM: bcm2835: Include SDHOST in the device tree.
> ARM: bcm2835: Enable SDHOST by default.

This patchset misses defconfig changes to enable
the new sdhost driver.

So we end up with a default kernel
without the sdhost driver compiled in
but with sdhost enabled in the default device-tree (patch4)
resulting in a system that does not boot.

Thanks,
Martin