USB multi controller
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Cover letter [U-Boot] [PATCH 0/4] USB multi controller
Dear Lucas Stach,
Quoted 38 lines
Hi Stephen,
Am Dienstag, den 04.09.2012, 17:05 -0600 schrieb Stephen Warren:
Quoted 24 lines · Lucas Stach
Quoted 18 lines
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.
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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.
Quoted 4 lines
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:
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cdeb916120a4ehci: cosmetic: Define the number ofqt_buffers44ae0be7461fehci: Fail for multi-transaction interrupt transfers14eb79b7a086ehci: cosmetic: Define used constants5cec214ecd7dehci-hcd: Boost transfer speedcffcc5035809usb_storage: Restore non-EHCI support4bee5c83ea46usb_storage: Remove EHCI constraints3e8581bb9589usb_stor_BBB_transport: Do not delay when not requireddb19134615ddehci: Optimize qTD allocations
u-boot-usb master is updated to master and pushed for your enjoyment.
Quoted 2 lines
HTH,
Lucas
Best regards,
Marek Vasut