From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Thu, 26 Jun 2008 11:52:26 -0500
Subject: [U-Boot-Users] [PATCH] mtd: CONFIG_NAND_LAZY_SCAN option support
In-Reply-To: <4863664A.4020807@emcraft.com>
References: <4863664A.4020807@emcraft.com>
Message-ID: <4863C94A.2010602@freescale.com>
List-Id: <u-boot.lists.denx.de>
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To: u-boot@lists.denx.de

Ilya Yanok wrote:
> diff --git a/common/cmd_nand.c b/common/cmd_nand.c
> index 37eb41b..6f5d13d 100644
> --- a/common/cmd_nand.c
> +++ b/common/cmd_nand.c
> @@ -236,6 +236,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc,
> char *argv[])
>      }
>      nand = &nand_info[nand_curr_device];
> 
> +    nand_lazy_scan_finish(nand);
> +

There are other entry points that need to be covered (e.g. do_nandboot, 
do_onenand, env_nand, jffs2, etc).  Probably better to put the call in 
nand_block_isbad().

> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index 740d3fc..f3ee705 100644
> --- a/drivers/mtd/nand/nand_base.c
> +++ b/drivers/mtd/nand/nand_base.c
> @@ -2652,8 +2652,13 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
>  #if 0
>      mtd->owner = THIS_MODULE;
>  #endif
> +#ifdef CONFIG_NAND_LAZY_SCAN
> +    this->options &= ~NAND_BBT_SCANNED;
> +    return 0;
> +#else
>      /* Build bad block table */
>      return this->scan_bbt (mtd);
> +#endif

Is there any reason not to enable this unconditionally?

Also, this patch is whitespace-mangled.

-Scott