openwrt/target
John Crispin 0206a400cf lantiq: tweak DWC2 default parameters
This patch improves the default configuration of DWC2 on lantiq SoCs
somewhat:
 * Set maximum packet count to largest allowed value by the DWC2 (511)
 * Use 16-bit DMA bursts
 * Divide fifo buffers more evenly

Default fifo buffer sizes from original ltq-hcd driver seem really
irrational. For example according to DWC2 data book rxfifo size of 240
will not fit even a single full length USB packet. On the other hand
non-periodic tx fifo size of 240 is more than enough to fit one complete
packet.

Change the sizes around to improve the situation and to fix some issues
especially with isochronous USB transfers.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>

SVN-Revision: 47563
2015-11-21 21:25:20 +00:00
..
imagebuilder imagebuilder: store package lists in cache directory 2015-09-14 16:57:03 +00:00
linux lantiq: tweak DWC2 default parameters 2015-11-21 21:25:20 +00:00
sdk sdk: provide explicit CONFIG_MODULES kconfig symbol 2015-07-27 23:45:15 +00:00
toolchain toolchain: respect CONFIG_VERSION_FILENAMES and add host system suffix 2015-02-07 21:01:37 +00:00
Config.in toolchain: add support of ARC architecture 2015-11-10 12:03:59 +00:00
Makefile target: do not make target/*/install depend on target/*/compile - removes one redundant kernel build dir call on target/install 2012-06-06 17:24:05 +00:00