From mboxrd@z Thu Jan  1 00:00:00 1970
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 25 Jun 2013 14:33:32 +0800
Subject: [U-Boot] [PATCH v2 5/5] ARM: at91: atmel_nand: add code to
 check the ONFI parameter ECC requirement
In-Reply-To: <1371761824.11064.15@snotra>
References: <1371761824.11064.15@snotra>
Message-ID: <51C939BC.5030401@atmel.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

Hi, Dear Scott

On 6/21/2013 4:57 AM, Scott Wood wrote:
> On 06/17/2013 05:51:21 AM, Josh Wu wrote:
>> +static int pmecc_choose_ecc(struct atmel_nand_host *host,
>> +        struct nand_chip *chip,
>> +        int *cap, int *sector_size)
>> +{
>> +    /* Get ECC requirement from ONFI parameters */
>> +    *cap = *sector_size = 0;
>> +    if (chip->onfi_version) {
>> +        if (!get_onfi_ecc_param(chip, cap, sector_size))
>> +            pr_debug("ONFI params, minimum required ECC: %d bits in 
>> %d bytes\n",
>> +                *cap, *sector_size);
>> +        else
>> +            dev_info(NULL, "NAND chip ECC reqirement is in Extended 
>> ONFI parameter, we don't support yet.\n");
>> +    } else {
>> +        dev_info(NULL, "NAND chip is not ONFI compliant, assume 
>> ecc_bits is 2 in 512 bytes");
>> +    }
>
> Don't pass NULL to dev_info().  Either pass host->dev as the Linux 
> code does (and use dev_dbg rather than pr_debug), or just use printf() 
> (and debug()) if there's no intent to sync this change back to Linux.  
> It doesn't matter if host->dev doesn't exist in U-Boot, as the macro 
> doesn't use that parameter, but the only reason to use Linux-style 
> prints is to keep the code common with Linux.

understood. I prefer to use dev_xxx(host->dev, ...) to keep consistent 
with kernel.

I use pr_debug because it is defined as MTDDEBUG in mtd/mtd.h, that is 
exact what I want.
Since if use debug(), then when I enable debug, there are many mtd 
non-related message shows up.

Best Regards,
Josh Wu

>
> -Scott