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From: Scott Wood <scottwood@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/4] mtd: nand: add Freescale NFC driver
Date: Wed, 13 Aug 2014 15:32:18 -0500	[thread overview]
Message-ID: <1407961938.7427.161.camel@snotra.buserror.net> (raw)
In-Reply-To: <7b41b54fe3f11a943b0ec63f2e44f573@agner.ch>

On Wed, 2014-08-13 at 13:20 +0200, Stefan Agner wrote:
> IMHO we should use the raw_writel only and "hand optimize" for functions
> which are used often. For the initialization/configuration functions,
> there is little value to save some register access.

raw_writel() is itself something that should only be used for
hand-optimized sections.  For non-performance-critical code you should
use normal writel() so that you don't need to worry about manually
adding I/O barriers.

-Scott

  parent reply	other threads:[~2014-08-13 20:32 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-06  8:59 [U-Boot] [PATCH 0/4] arm: vf610: add NAND flash support Stefan Agner
2014-08-06  8:59 ` [U-Boot] [PATCH 1/4] arm: vf610: add NFC pin mux Stefan Agner
2014-08-30 15:14   ` [U-Boot] [U-Boot,1/4] " Tom Rini
2014-08-06  8:59 ` [U-Boot] [PATCH 2/4] arm: vf610: add NFC clock support Stefan Agner
2014-08-30 15:14   ` [U-Boot] [U-Boot,2/4] " Tom Rini
2014-08-06  8:59 ` [U-Boot] [PATCH 3/4] mtd: nand: add Freescale NFC driver Stefan Agner
2014-08-06 23:01   ` Bill Pringlemeir
2014-08-11 22:33   ` Scott Wood
2014-08-12 21:13     ` Stefan Agner
2014-08-12 22:17       ` Scott Wood
2014-08-12 22:58         ` Bill Pringlemeir
2014-08-13  8:13           ` Stefan Agner
2014-08-13 11:20           ` Stefan Agner
2014-08-13 15:14             ` Bill Pringlemeir
2014-08-13 16:27               ` Stefan Agner
2014-08-13 17:11                 ` Bill Pringlemeir
2014-08-13 20:32             ` Scott Wood [this message]
2014-08-13 20:41           ` Scott Wood
2014-08-13 21:44             ` Bill Pringlemeir
2014-08-13 22:54               ` Scott Wood
2014-08-14 14:26                 ` Bill Pringlemeir
2014-08-06  8:59 ` [U-Boot] [PATCH 4/4] arm: vf610: add NAND support for vf610twr Stefan Agner

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