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From: "Andreas Bießmann" <andreas.devel@googlemail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/4] atmel_nand: increase more delay to support MT29F32G08CBADA
Date: Sun, 24 Jan 2016 22:41:54 +0100	[thread overview]
Message-ID: <56A54522.6010009@googlemail.com> (raw)
In-Reply-To: <1448353614-26398-4-git-send-email-josh.wu@atmel.com>

Hi Josh,

On 24.11.15 09:26, Josh Wu wrote:
> The tR is 100us in the datasheet section: Array Characteristics
> 

I've seen 50us for tR. Which datasheet do you have?

Andreas

> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
> 
>  drivers/mtd/nand/atmel_nand.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
> index 5226acf..266dfd9 100644
> --- a/drivers/mtd/nand/atmel_nand.c
> +++ b/drivers/mtd/nand/atmel_nand.c
> @@ -1492,7 +1492,7 @@ int atmel_nand_chip_init(int devnum, ulong base_addr)
>  #ifdef CONFIG_SYS_NAND_READY_PIN
>  	nand->dev_ready = at91_nand_ready;
>  #endif
> -	nand->chip_delay = 75;
> +	nand->chip_delay = 100;
>  #ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
>  	nand->bbt_options |= NAND_BBT_USE_FLASH;
>  #endif
> 

  reply	other threads:[~2016-01-24 21:41 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-24  8:26 [U-Boot] [PATCH 0/4] atmel_nand: misc update in atmel nandflash driver Josh Wu
2015-11-24  8:26 ` [U-Boot] [PATCH 1/4] atmel_nand: use nand ecc_{strength, step}_ds instead of our own function Josh Wu
2016-01-24 21:22   ` Andreas Bießmann
2016-01-25  2:41     ` Yang, Wenyou
2015-11-24  8:26 ` [U-Boot] [PATCH 2/4] atmel_nand: add '\n' in the end of error message for better display Josh Wu
2016-01-24 21:31   ` Andreas Bießmann
2015-11-24  8:26 ` [U-Boot] [PATCH 3/4] atmel_nand: increase more delay to support MT29F32G08CBADA Josh Wu
2016-01-24 21:41   ` Andreas Bießmann [this message]
2016-01-25  5:51     ` Yang, Wenyou
2015-11-24  8:26 ` [U-Boot] [PATCH 4/4] atmel_nand: use the definition: PMECC_OOB_RESERVED_BYTES instead magic number Josh Wu
2016-01-24 21:37   ` Andreas Bießmann

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