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From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Wolfgang Grandegegr <wg@grandegger.com>
Cc: linuxppc-dev@ozlabs.org, linux-mtd@lists.infradead.org
Subject: Re: [PATCH 3/4] NAND: FSL-UPM: Add wait flags to support board/chip specific delays
Date: Tue, 17 Mar 2009 22:01:26 +0300	[thread overview]
Message-ID: <20090317190126.GA4287@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <1237281143-8768-4-git-send-email-wg@grandegger.com>

On Tue, Mar 17, 2009 at 10:12:21AM +0100, Wolfgang Grandegegr wrote:
> From: Wolfgang Grandegger <wg@grandegger.com>
> 
> The NAND flash on the TQM8548_BE modules requires a short delay after
> running the UPM pattern. The TQM8548_BE requires a further short delay
> after writing out a buffer. Normally the R/B pin should be checked, but
> it's not connected on the TQM8548_BE. The existing driver uses similar
> fixed delay points. To manage these extra delays in a more general way,
> I introduced the "wait_flags" field allowing the board-specific driver
> to specify various types of extra delay.
> 
> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
> ---

Just a nitpick...

> +	prop = of_get_property(ofdev->node, "wait-flags", &size);
> +	if (prop && size == sizeof(uint32_t))
> +		fun->wait_flags = *prop;
> +	else
> +		fun->wait_flags = (FSL_UPM_WAIT_RUN_PATTERN |
> +				   FSL_UPM_WAIT_WRITE_BYTE);

No need for parenthesis here.

Thanks,

-- 
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2

  parent reply	other threads:[~2009-03-17 19:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-17  9:12 [PATCH 0/4] NAND: Multi-chip support for FSL-UPM for TQM8548 modules Wolfgang Grandegegr
2009-03-17  9:12 ` [PATCH 1/4] NAND: FSL-UPM: add multi chip support Wolfgang Grandegegr
2009-03-17  9:12   ` [PATCH 2/4] NAND: FSL-UPM: add support for selecting chips via MAR Wolfgang Grandegegr
2009-03-17  9:12     ` [PATCH 3/4] NAND: FSL-UPM: Add wait flags to support board/chip specific delays Wolfgang Grandegegr
2009-03-17  9:12       ` [PATCH 4/4] powerpc/85xx: TQM8548: Update DTS file for multi-chip support Wolfgang Grandegegr
2009-03-17  9:12         ` Wolfgang Grandegegr
2009-03-17 19:23         ` Anton Vorontsov
2009-03-18  7:34           ` Wolfgang Grandegger
2009-03-18 18:51         ` Scott Wood
2009-03-17 19:01       ` Anton Vorontsov [this message]
2009-03-17 19:27   ` [PATCH 1/4] NAND: FSL-UPM: add multi chip support Anton Vorontsov
2009-03-18  7:41     ` Wolfgang Grandegger
2009-03-18 13:02       ` Anton Vorontsov
2009-03-17 13:56 ` [PATCH 0/4] NAND: Multi-chip support for FSL-UPM for TQM8548 modules Kumar Gala

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