Lukasz Majewski e0059eaef1 usb:udc:samsung: Zero copy approach for data passed to Samsung's UDC driver ... The Samsung's UDC driver is not anymore copying data from USB requests to aligned internal buffers. Now it works directly in data allocated in the upper layers like UMS, DFU, THOR. This change is possible since those gadgets now must take care to allocate buffers aligned to cache line (CONFIG_SYS_CACHELINE_SIZE). This can be achieved by using DEFINE_CACHE_ALIGN_BUFFER() or ALLOC_CACHE_ALIGN_BUFFER() macros. Those take care to allocate buffer aligned to cache line in both starting address and its size. Sometimes it is enough to just use memalign() with size being a multiplication of cache line size. Test condition - test HW + measurement: Trats - Exynos4210 rev.1 - test HW Trats2 - Exynos4412 rev.1 400 MiB compressed rootfs image download with `thor 0 mmc 0` Measurement: Transmission speed: 27.04 MiB/s Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Cc: Marek Vasut <marex@denx.de>		2014-02-06 02:22:45 +01:00
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eth	drivers: usb: convert makefiles to Kbuild style	2013-10-31 13:25:38 -04:00
gadget	usb:udc:samsung: Zero copy approach for data passed to Samsung's UDC driver	2014-02-06 02:22:45 +01:00
host	usb: exynos5: arndale: Add network support	2014-01-13 12:23:28 +01:00
musb	drivers: usb: convert makefiles to Kbuild style	2013-10-31 13:25:38 -04:00
musb-new	drivers: usb: convert makefiles to Kbuild style	2013-10-31 13:25:38 -04:00
phy	drivers: usb: convert makefiles to Kbuild style	2013-10-31 13:25:38 -04:00
ulpi	drivers: usb: convert makefiles to Kbuild style	2013-10-31 13:25:38 -04:00