On Mon, Jul 28, 2014 at 05:06:20AM +0100, Simon Glass wrote: > Hi, > > On 13 July 2014 19:27, Simon Glass <s...@chromium.org> wrote: > > This series adds support for a serial uclass, enabling serial drivers to be > > converted to use driver model. > > > > Unfortunately this is quite a complicated process for a number of reasons: > > > > - serial is used before relocation, but driver model does not support this > > - stdio member functions are not passed a device pointer, but driver model > > requires this (so does serial, but it uses an ugly work-around) > > - driver model requires malloc() but this is not available before > > relocation > > - for sandbox, if something goes wrong with the console, we still need to > > get an error message out through the fallback console > > > > So this series relies on quite a few patches to address the above, as well > > as the serial uclass and an implementation for sandbox. > > > > If you have limited time, please take a look at least at the uclass patch > > which is 'dm: Add a uclass for serial devices' (see include/serial.h). > > > > Note: this series breaks 4 exynos boards. I will figure out how to get them > > to build as part of the exynos5-dt common board work. > > > > To see the current state of driver model, look at u-boot-dm.git branch > > 'working'. > > > > Changes in v2: > > - Add exynos serial support > > - Remove RFC status > > - Rename struct device to struct udevice > > - Split out core driver model patches into a separate set > > Are there any comments on this series? I'm particularly interested in > comments on include/serial.h - the uclass API for serial. > > I plan to apply the uclass and sandbox support soon, with exynos > support coming later once the 'common' serial has been reviewed.
Seems good enough to start with for sure, I'm usually a believer in needing a few things converted over to something, to start to see where designs need tweaking. -- Tom
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