Re: [PATCH v2 01/25] mtd: nand: qcom: fix config error for BCH

[Boris Brezillon]

On Wed, 19 Jul 2017 17:17:49 +0530
Abhishek Sahu <absahu@xxxxxxxxxxxxxx> wrote:

> The configuration for BCH is not correct in the current driver.
> The ECC_CFG_ECC_DISABLE bit defines whether to enable or disable the
> BCH ECC in which
> 
> 	0x1 : BCH_DISABLED
> 	0x0 : BCH_ENABLED
> 
> But currently host->bch_enabled is being assined to BCH_DISABLED.
> 
> Fixes: c76b78d8ec05a ("mtd: nand: Qualcomm NAND controller driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Abhishek Sahu <absahu@xxxxxxxxxxxxxx>
> ---
>  drivers/mtd/nand/qcom_nandc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
> index 57d483a..bc0408c 100644
> --- a/drivers/mtd/nand/qcom_nandc.c
> +++ b/drivers/mtd/nand/qcom_nandc.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright (c) 2016, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

Applied to nand/next after removing the above line.

>   *
>   * This software is licensed under the terms of the GNU General Public
>   * License version 2, as published by the Free Software Foundation, and
> @@ -1893,7 +1893,7 @@ static int qcom_nand_host_setup(struct qcom_nand_host *host)
>  				| wide_bus << WIDE_FLASH
>  				| 1 << DEV0_CFG1_ECC_DISABLE;
>  
> -	host->ecc_bch_cfg = host->bch_enabled << ECC_CFG_ECC_DISABLE
> +	host->ecc_bch_cfg = !host->bch_enabled << ECC_CFG_ECC_DISABLE
>  				| 0 << ECC_SW_RESET
>  				| host->cw_data << ECC_NUM_DATA_BYTES
>  				| 1 << ECC_FORCE_CLK_OPEN