From: Julien Grall <julien.grall@linaro.org>
To: Chen Baozi <baozich@gmail.com>
Cc: Keir Fraser <keir@xen.org>,
Ian Campbell <Ian.Campbell@citrix.com>,
xen-devel@lists.xen.org
Subject: Re: [PATCH 3/4] xen: set the right flags when enabling interrupts for 8250
Date: Thu, 25 Jul 2013 12:17:36 +0100 [thread overview]
Message-ID: <51F10950.8010803@linaro.org> (raw)
In-Reply-To: <3AA43164-D350-4E67-AAD2-0A07B19BE695@gmail.com>
On 07/25/2013 10:14 AM, Chen Baozi wrote:
> Besides this test, I noticed that we set a timer to poll UART after enabling
> the interrupt. And the timer initialization codes are platform specific, which
> should be implemented in xen/arch/arm/platforms/omap5.c for example. However,
> I haven't done this yet. (I used to plan to turn to this work after UART porting
> has been done.) Is it a possible factor that may cause my issues?
Xen uses the arch timers to handle the time. On some platform (for
instance the Arndale), it's not enabled by default.
If the omap5 boot with the arch timers enabled, you don't need to
implement the init_time callback.
Do you know if Xen receives timer interrupts?
--
Julien
next prev parent reply other threads:[~2013-07-25 11:17 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-19 12:57 [PATCH 0/4] Support 8250 compatible UART for OMAP5432 Chen Baozi
2013-07-19 12:57 ` [PATCH 1/4] xen: extract register definitions from ns16550 into a separated header Chen Baozi
2013-07-19 15:35 ` Julien Grall
2013-07-19 15:37 ` Chen Baozi
2013-07-19 15:43 ` Julien Grall
2013-07-19 12:57 ` [PATCH 2/4] xen/arm: add OMAP5432 UART support for early_printk Chen Baozi
2013-07-19 15:49 ` Julien Grall
2013-07-19 12:57 ` [PATCH 3/4] xen: set the right flags when enabling interrupts for 8250 Chen Baozi
2013-07-19 14:15 ` Ian Campbell
2013-07-19 15:18 ` Chen Baozi
2013-07-22 12:59 ` Chen Baozi
2013-07-23 11:47 ` Chen Baozi
2013-07-24 10:04 ` Chen Baozi
2013-07-25 9:14 ` Chen Baozi
2013-07-25 11:17 ` Julien Grall [this message]
2013-07-25 11:31 ` Chen Baozi
2013-07-25 12:33 ` Julien Grall
2013-07-26 1:14 ` Chen Baozi
2013-07-26 3:31 ` Chen Baozi
2013-07-26 9:30 ` Chen Baozi
2013-07-26 10:42 ` Julien Grall
2013-07-26 11:01 ` Chen Baozi
2013-07-26 12:01 ` Julien Grall
2013-07-26 12:32 ` Chen Baozi
2013-07-19 12:57 ` [PATCH 4/4] xen/arm: enable ns16550 uart driver for OMAP5432 Chen Baozi
2013-07-19 17:06 ` Julien Grall
2013-07-22 13:06 ` Chen Baozi
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