From: Peter Korsgaard <jacmet@sunsite.dk>
To: John Williams <john.williams@petalogix.com>
Cc: monstr@seznam.cz, Josh Boyer <jwboyer@linux.vnet.ibm.com>,
Grant Likely <grant.likely@secretlab.ca>,
linux-serial@vger.kernel.org,
Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Subject: Re: Uartlite driver
Date: Mon, 12 May 2008 09:43:58 +0200 [thread overview]
Message-ID: <87lk2garwh.fsf@macbook.be.48ers.dk> (raw)
In-Reply-To: <1210545557.5798.267.camel@localhost> (John Williams's message of "Mon\, 12 May 2008 08\:39\:17 +1000")
>>>>> "John" == John Williams <john.williams@petalogix.com> writes:
Hi,
John> The uartlite register set is 32 bits wide - that's what the datasheet
John> says, and that's how we should interact with it. I really don't
John> understand why this commit was reverted.
John> Who uses the uartlite driver for anything other than the uartlite?
Me (the author of uartlite.c). We have designs where we needed more
uarts, but didn't have any more room/ I/O pins on the virtex, so we
have implemented an uartlite compatible interface in a S3E connected
through a 16bit bus.
Not exactly brilliant hw design, but it works and it keeps the sw
support to a minimum.
--
Bye, Peter Korsgaard
prev parent reply other threads:[~2008-05-12 7:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-11 14:01 Uartlite driver Michal Simek
2008-05-11 22:39 ` John Williams
2008-05-12 4:31 ` Grant Likely
2008-05-12 6:15 ` Michal Simek
2008-05-15 14:31 ` David H. Lynch Jr.
2008-05-15 16:39 ` Stephen Neuendorffer
2008-05-16 7:41 ` Peter Korsgaard
2008-05-15 14:45 ` Uartlite driver & CONFIG_CONSOLE_POLL David H. Lynch Jr.
2008-05-16 7:47 ` Peter Korsgaard
[not found] ` <482E5BD0.1080306@dlasys.net>
2008-05-18 19:04 ` Peter Korsgaard
2008-05-12 7:43 ` Peter Korsgaard [this message]
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