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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
	Richard Weinberger <richard@nod.at>,
	Brendan Higgins <brendanhiggins@google.com>,
	linux-kernel@vger.kernel.org,
	Boris Brezillon <boris.brezillon@collabora.com>,
	linux-mtd@lists.infradead.org,
	Mason Yang <masonccyang@mxic.com.tw>,
	Piotr Sroka <piotrs@cadence.com>
Subject: Re: [PATCH] mtd: rawnand: arasan: select CONFIG_BCH
Date: Wed, 27 May 2020 15:53:04 +0200	[thread overview]
Message-ID: <20200527155304.0cf42848@xps13> (raw)
In-Reply-To: <20200527134210.847411-1-arnd@arndb.de>

Hi Arnd,

Arnd Bergmann <arnd@arndb.de> wrote on Wed, 27 May 2020 15:42:03 +0200:

> Like several other nand flash drivers, this one requires the BCH
> library to be selected from Kconfig.

Actually most of the time these drivers do not depend on BCH directly.
Here it is a bit particular: the hardware ECC engine logic being
broken, I found a workaround by using BCH's library functions directly
to verify the hardware correctness.

Anyway, thank you very much for the fix but if I didn't make a mistake
it should have been fixed yesterday night already, so it's probably not
in linux-next yet.

> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_attach_chip':
> arasan-nand-controller.c:(.text+0x894): undefined reference to `bch_init'
> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_detach_chip':
> arasan-nand-controller.c:(.text+0x98c): undefined reference to `bch_free'
> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_read_page_hw_ecc':
> arasan-nand-controller.c:(.text+0x1080): undefined reference to `bch_decode'
> 
> Fixes: 197b88fecc50 ("mtd: rawnand: arasan: Add new Arasan NAND controller")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/mtd/nand/raw/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
> index e2bc87779bf9..113f61052269 100644
> --- a/drivers/mtd/nand/raw/Kconfig
> +++ b/drivers/mtd/nand/raw/Kconfig
> @@ -456,6 +456,7 @@ config MTD_NAND_CADENCE
>  config MTD_NAND_ARASAN
>  	tristate "Support for Arasan NAND flash controller"
>  	depends on HAS_IOMEM && HAS_DMA
> +	select BCH
>  	help
>  	  Enables the driver for the Arasan NAND flash controller on
>  	  Zynq Ultrascale+ MPSoC.

Thanks,
Miquèl

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Boris Brezillon <boris.brezillon@collabora.com>,
	Brendan Higgins <brendanhiggins@google.com>,
	Piotr Sroka <piotrs@cadence.com>,
	Mason Yang <masonccyang@mxic.com.tw>,
	linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mtd: rawnand: arasan: select CONFIG_BCH
Date: Wed, 27 May 2020 15:53:04 +0200	[thread overview]
Message-ID: <20200527155304.0cf42848@xps13> (raw)
In-Reply-To: <20200527134210.847411-1-arnd@arndb.de>

Hi Arnd,

Arnd Bergmann <arnd@arndb.de> wrote on Wed, 27 May 2020 15:42:03 +0200:

> Like several other nand flash drivers, this one requires the BCH
> library to be selected from Kconfig.

Actually most of the time these drivers do not depend on BCH directly.
Here it is a bit particular: the hardware ECC engine logic being
broken, I found a workaround by using BCH's library functions directly
to verify the hardware correctness.

Anyway, thank you very much for the fix but if I didn't make a mistake
it should have been fixed yesterday night already, so it's probably not
in linux-next yet.

> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_attach_chip':
> arasan-nand-controller.c:(.text+0x894): undefined reference to `bch_init'
> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_detach_chip':
> arasan-nand-controller.c:(.text+0x98c): undefined reference to `bch_free'
> arm-linux-gnueabi-ld: drivers/mtd/nand/raw/arasan-nand-controller.o: in function `anfc_read_page_hw_ecc':
> arasan-nand-controller.c:(.text+0x1080): undefined reference to `bch_decode'
> 
> Fixes: 197b88fecc50 ("mtd: rawnand: arasan: Add new Arasan NAND controller")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/mtd/nand/raw/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
> index e2bc87779bf9..113f61052269 100644
> --- a/drivers/mtd/nand/raw/Kconfig
> +++ b/drivers/mtd/nand/raw/Kconfig
> @@ -456,6 +456,7 @@ config MTD_NAND_CADENCE
>  config MTD_NAND_ARASAN
>  	tristate "Support for Arasan NAND flash controller"
>  	depends on HAS_IOMEM && HAS_DMA
> +	select BCH
>  	help
>  	  Enables the driver for the Arasan NAND flash controller on
>  	  Zynq Ultrascale+ MPSoC.

Thanks,
Miquèl

  reply	other threads:[~2020-05-27 13:53 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27 13:42 [PATCH] mtd: rawnand: arasan: select CONFIG_BCH Arnd Bergmann
2020-05-27 13:42 ` Arnd Bergmann
2020-05-27 13:53 ` Miquel Raynal [this message]
2020-05-27 13:53   ` Miquel Raynal
2020-05-27 14:37   ` Arnd Bergmann
2020-05-27 14:37     ` Arnd Bergmann

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