On Thu, Jul 03, 2014 at 02:48:08PM -0400, Lennart Sorensen wrote: > On Wed, Jul 02, 2014 at 06:00:09PM +0200, Sebastian Andrzej Siewior wrote: > > This patch provides a 8250-core based UART driver for the internal OMAP > > UART. The longterm goal is to provide the same functionality as the > > current OMAP uart driver and hopefully DMA support which could borrowed > > from the 8250-core. > > This sounds interesting. We are currently finding the omap serial driver > awefully slow at handling serial traffic with ti's 3.12.y kernel branch, > while the 3.8.y was seemingly a bit better (on the dra7xx eval board). > Haven't had time to really investigate that yet though. > > > The whole PM-Runtime part is currently missing. > > It has been only tested as console UART. > > The tty name is ttyS based instead of ttyO. How big is the pain here, > > what could be the easiest way to provide compatibility? > > I would certainly love to see ttyS instead of ttyO. But of course I am > working on a new system that isn't released yet so changing things is > a complete non issue for me. :) > > I should give this driver a try and see how it compares so far. I get a segfault at this line: mvr = uart_read(up, UART_OMAP_MVER); I added it to ti's 3.12.y kernel and ran it on uart7 and uart8 on a dra7xx-evm as a module (built in the kernel never booted due to the crash). -- Len Sorensen -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
