From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/3] mtd/nand : Add function board_nand_init_tail() for some special NAND controllers
Date: Tue, 22 Nov 2011 16:03:14 -0500 [thread overview]
Message-ID: <201111221603.15970.vapier@gentoo.org> (raw)
In-Reply-To: <1321952056-20281-1-git-send-email-Shengzhou.Liu@freescale.com>
On Tuesday 22 November 2011 03:54:14 Shengzhou Liu wrote:
> In some NAND controllers there is a size limitation of RAM buffer(2K
> bytes). To support large-page NAND chips with greater than 2K pagesize, we
> need a large buffer, but we don't know pagesize before calling
> nand_scan_ident(), for more flexible and to identify different cases of
> large-page greater than 2K bytes, we have a board_nand_init_tail() between
> nand_scan_ident() and nand_scan_tail().
iirc, newer Linux mtd tree handles this better by breaking up the code paths
so individual drivers can call things in the right order. perhaps we should
update our mtd stack so we can do that ?
-mike
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next prev parent reply other threads:[~2011-11-22 21:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-22 8:54 [U-Boot] [PATCH 1/3] mtd/nand : Add function board_nand_init_tail() for some special NAND controllers Shengzhou Liu
2011-11-22 8:54 ` [U-Boot] [PATCH 2/3] mtd/nand : workaround for Freescale FCM to support 4k pagesize Nand chip Shengzhou Liu
2011-11-22 8:54 ` [U-Boot] [PATCH 3/3] mtd/nand: Add NAND chip ID to support Micron 4K pagesize NAND chip Shengzhou Liu
2011-11-22 23:58 ` [U-Boot] [PATCH 2/3] mtd/nand : workaround for Freescale FCM to support 4k pagesize Nand chip Scott Wood
2011-11-22 21:03 ` Mike Frysinger [this message]
2011-11-22 21:11 ` [U-Boot] [PATCH 1/3] mtd/nand : Add function board_nand_init_tail() for some special NAND controllers Scott Wood
2011-11-23 19:31 ` Mike Frysinger
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