[PATCH 1/2] mmc: core: Support all MMC capabilities when booting from Device Tree
Arnd Bergmann
arnd at arndb.de
Wed Oct 17 09:38:00 EDT 2012
On Monday 15 October 2012, Lee Jones wrote:
> > and so on. What are you actually missing in the properties that
> > are already there?
>
> MMC_CAP_ERASE
This one seems to be set unconditionally on some controllers but
not on others. Why would it need to be configurable?
> MMC_CAP_UHS_SDR12
> MMC_CAP_UHS_SDR25
> MMC_CAP_UHS_DDR50
Could this be derived from max-frequency?
> MMC_CAP_1_8V_DDR
Right, I suppose we need this. Should we have a minimum and maximum
voltage added to the common properties for this?
> MMC_CAP2_DETECT_ON_ERR
> MMC_CAP2_NO_SLEEP_CMD
I don't see these ones being set anywhere, but they were both
added by Ulf. Maybe he can comment on if or why they are needed
in devicetree, rather than being set by the driver unconditionally
or for specific versions of the host controller.
Arnd
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