On 07/16/2013 01:22 PM, Paul Zimmerman wrote: > The dwc2 driver sets the value of the DWC2 GAHBCFG register to 0x6, > which is GAHBCFG_HBSTLEN_INCR4. But different platforms may require > different values. In particular, the Broadcom 2835 SOC used in the > Raspberry Pi needs a value of 0x10, otherwise the DWC2 controller > stops working after a short period of heavy USB traffic. > > So this patch adds another driver parameter named 'ahbcfg'. The > default value is 0x6. Any platform needing a different value should > add a DT attribute to set it. > > This patch also removes the 'ahb_single' driver parameter, since > that bit can now be set using 'ahbcfg'. > > This patch does not add DT support to platform.c, I will leave that > to whoever owns the first platform that needs a non-default value. > (Stephen?) Tested-by: Stephen Warren <swarren@xxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
