From: Timur Tabi <timur@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] p1022ds: fix switching of DIU/LBC signals
Date: Wed, 1 Dec 2010 17:28:28 -0600 [thread overview]
Message-ID: <4CF6DA1C.3080004@freescale.com> (raw)
In-Reply-To: <20101201170018.62ab7921@udp111988uds.am.freescale.net>
Scott Wood wrote:
>> You told me that since I'm doing a read following a write to uncached memory,
>> > that I don't need a sync.
> No, I was talking about a write followed by a read, to the same location.
That's what I said. Read following write == write followed by read.
> out_8 should be fixed to behave like the other accessors.
Ok, but I'm not using any of the I/O accessors, so this doesn't affect me.
I just need to make sure that the read is executed after the write, and that the
read completes before I continue. So I should I put an isync between the write
and the read, and a sync after the read?
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2010-12-01 23:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-01 0:36 [U-Boot] [PATCH] p1022ds: fix switching of DIU/LBC signals Timur Tabi
2010-12-01 1:50 ` Scott Wood
2010-12-01 13:01 ` Kumar Gala
2010-12-01 13:51 ` Liu Dave-R63238
2010-12-01 14:12 ` Tabi Timur-B04825
2010-12-01 14:38 ` Liu Dave-R63238
2010-12-01 22:45 ` Timur Tabi
2010-12-01 23:00 ` Scott Wood
2010-12-01 23:28 ` Timur Tabi [this message]
2010-12-01 23:54 ` Scott Wood
2010-12-02 17:45 ` Timur Tabi
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