On Mon, 2015-03-09 at 07:36 -0700, Tim Kryger wrote: > On Mon, Mar 9, 2015 at 6:32 AM, Alan Cox <a...@linux.intel.com> wrote: > >> Maybe the next release of the board we will upgrade the serial block to > >> the new version. > >> but the issue is that how we circumvent this problem in kernel? > > > > What is the official vendor workaround ? > > They introduced a UART_16550_COMPATIBLE option for the IP which should > be selected. > > If configured, writes to the LCR are allowed even if it is "busy" so > there is no need to retry. > > More importantly there is no possibility of failing to write the LCR > after numerous retries.
Ah no - I meant what is their official software workaround for existing parts with the bug ? Presumably they have an errata document that discusses this and the correct methods they recommend to avoid the hang ? Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
