[U-Boot] [PATCH 0/4] USB multi controller

[Lucas Stach]

Hi Stephen,

Am Dienstag, den 04.09.2012, 17:05 -0600 schrieb Stephen Warren:
> On 08/30/2012 10:03 AM, Lucas Stach wrote:
> > Hi all,
> > 
> > this is a follow up on the patch "USB: EHCI: Initialize multiple
> > USB controllers at once" from Jim Lin. It takes some of the
> > code but has undergone some heavy reworking.
> > 
> > When we remove the ifdef horror from the above mentioned patch it's
> > mostly a big interface change to the usb subsystem. As this creates
> > a lot of churn I've split this up into a series. Every patch is self
> > contained so it doesn't break compiles and *should* not regress
> > any functionality on it's own. At least the series is bisectable in
> > case anything goes wrong. I've compile tested all the ARM configs.
> > 
> > Both the lowlevel usb and ehci interface change are backward
> > compatible, so implementations that only use one controller can
> > choose to ignore the new interface. All implementations are
> > updated to work with the new function prototypes.
> > 
> > For Tegra I've included a patch to actually use the new ehci
> > interface. Patches are based on a Tegra tree with some relevant
> > changes from u-boot-usb picked over, so they should apply to
> > u-boot-usb/master.
> 
> Can you explain what this series is based on in a little more detail? I
> tried applying it to Tegra's for-next today, and it wouldn't apply. I
> managed to apply using plain "patch" rather then "git am", but then I
> get a bunch of compile errors:-(
> 
At the time I wrote those patches the u-boot-usb and u-boot-tegra trees
didn't merge cleanly and I wasted quite some time trying to fix up the
failed merge. In the end I ended up just picking the following over to
my tegra tree, which should be enough to avoid any conflicts with the
usb tree:

cdeb916120a4 ehci: cosmetic: Define the number of qt_buffers
44ae0be7461f ehci: Fail for multi-transaction interrupt transfers
14eb79b7a086 ehci: cosmetic: Define used constants
5cec214ecd7d ehci-hcd: Boost transfer speed
cffcc5035809 usb_storage: Restore non-EHCI support
4bee5c83ea46 usb_storage: Remove EHCI constraints
3e8581bb9589 usb_stor_BBB_transport: Do not delay when not required
db19134615dd ehci: Optimize qTD allocations

HTH,
Lucas