This is my second version of long-dicussed series initially posted by Tom, then by me and then by Marek ;)
This inlcudes proper alignment handling inside EHCI HCD driver, a little bit more careful error handling and cacheline alignment fix for smsc95xx USB Ethernet driver.
I noticed no problems with mcx board but with TI beagle xM I get "EHCI timed out on TD" errors from time to time. Probably that's because I'm testing with different set of devices. Anyway I can see the same errors on beagle xM without these series applied (with D-Cache completely disabled) so I don't think the problem was introduced by these patches.
Ilya Yanok (5): ehci-hcd: fix external buffer cache handling usb: pass cache-aligned buffer to usb_get_descriptor() usb: check return value of submit_{control,bulk}_msg ehci-hcd: change debug() to printf() in case of errors smsc95xx: align buffers to cache line size
Marek Vasut (1): common.h: Introduce DEFINE_CACHE_ALIGN_BUFFER
Tom Rini (2): ehci-omap: Do not call dcache_off from omap_ehci_hcd_init ehci-hcd.c, musb_core, usb.h: Add USB_DMA_MINALIGN define for cache alignment
common/usb.c | 12 ++++-- drivers/usb/eth/smsc95xx.c | 13 ++++-- drivers/usb/host/ehci-hcd.c | 93 +++++++++++++++++++++++------------------- drivers/usb/host/ehci-omap.c | 1 - drivers/usb/musb/musb_core.h | 2 +- include/common.h | 21 ++++++++-- include/usb.h | 10 +++++ 7 files changed, 97 insertions(+), 55 deletions(-)